JPH0842300A - Dust elimination treatment method and dust elimination treatment device in tunnel work - Google Patents

Dust elimination treatment method and dust elimination treatment device in tunnel work

Info

Publication number
JPH0842300A
JPH0842300A JP19488594A JP19488594A JPH0842300A JP H0842300 A JPH0842300 A JP H0842300A JP 19488594 A JP19488594 A JP 19488594A JP 19488594 A JP19488594 A JP 19488594A JP H0842300 A JPH0842300 A JP H0842300A
Authority
JP
Japan
Prior art keywords
air
dust
water
pipe
water tank
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
Application number
JP19488594A
Other languages
Japanese (ja)
Other versions
JP3397224B2 (en
Inventor
Takashi Fukuike
Toshiyuki Konno
隆 福池
俊幸 紺野
Original Assignee
Fujita Corp
株式会社フジタ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujita Corp, 株式会社フジタ filed Critical Fujita Corp
Priority to JP19488594A priority Critical patent/JP3397224B2/en
Publication of JPH0842300A publication Critical patent/JPH0842300A/en
Application granted granted Critical
Publication of JP3397224B2 publication Critical patent/JP3397224B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To miniaturize a device and to make dust into powder in a short period of time to prevent the worsening of the environment around a construction site by sucking dust around a facing with a wind pipe together with the peripheral tunnel air to exhaust the air to the outside of a tunnel, and applying the dust elimination treatment. CONSTITUTION:In the case a large amount of dust occurs in a tunnel, a preparatory exhaust port 21 is closed to supply water to a water tank 39, a water supply pump of a water spraying pipe 47 is driven, and a fan 67 is driven. At that time, the dust is sucked together with the peripheral tunnel air, and it is supplied to a chamber 17 in the outside of the tunnel through the wind pipe 11. In addition, the air as bubble is supplied to the water inside the water tank 39 from an air conveying compression section 25 through a large number of holes 40A of a perforated air supply pipe 40. The dust with large sized particles is mixed with water in the water tank 39 and is eliminated, fine dust is absorbed with a filter 45 on the water and is sprayed, and it is flushed in the water tank 39. Water content of purified air passing through a filter 19 and a water tank sectuib 35 is eliminated with a water elimination plate 57, and it is discharged through a drain pipe 61. In addition, the purified air eliminating water concontent and dust is exhausted in the outside air from a suction duct 63 through an exhaust tower 65.

Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【産業上の利用分野】本発明はトンネル工事における粉
塵除去処理方法及び粉塵除去処理装置に関し、更に詳細
には、切羽付近で大量に発生する粉塵を確実に除去処理
できるトンネル工事における粉塵除去処理方法及び粉塵
除去処理装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for removing dust in tunnel construction, and more specifically, a method for removing dust in tunnel construction capable of reliably removing a large amount of dust generated near a face. And a dust removal processing device.
【0002】[0002]
【従来の技術】トンネル工事の掘削はその規模や地質に
よって掘削方法が選択され、削岩機による掘削や発破に
よる粉砕削岩後、粉砕削岩は搬送手段により坑外に搬出
されている。トンネル工事における坑内は、削岩機や発
破により相当の粉塵が発生する他、有害ガスや内燃機関
の排ガス等も発生するため、坑内環境が悪くならないよ
うに常に新鮮な外気を供給する等、それぞれの規模にあ
わせた換気方式により換気されている。そして、作業員
は防塵マスク等により防塵し、また、切羽付近に粉塵を
処理する集塵機を設置して作業環境を改善している。更
に、粉塵が大量に発生する場合は、坑内の排気設備に接
続された粉塵処理装置を坑外に設置している。このよう
な粉塵処理装置として、汚染空気を複数のフィルタ層を
通過させてフィルタ層により粉塵を吸着し、さらに、フ
ィルタ層を通過して空気を、清水が散水された水洗ネッ
トを通過させ、粉塵を取り除いた空気を排気口より排気
するものが提供されている。
2. Description of the Related Art For excavation for tunnel construction, an excavation method is selected depending on its scale and geology. After excavation by a rock drill or crushing and rocking by blasting, the crushed rock is carried out by a transport means to the outside of the mine. In the tunnel construction, a lot of dust is generated due to rock drilling and blasting, and harmful gas and exhaust gas of the internal combustion engine are generated.Therefore, always supply fresh outside air so that the environment in the mine does not deteriorate. It is ventilated by the ventilation method according to the scale of. The worker protects the work environment by using a dust mask or the like to prevent dust and installing a dust collector for treating dust near the face. Further, when a large amount of dust is generated, a dust processing device connected to an exhaust facility inside the mine is installed outside the mine. As such a dust treatment device, contaminated air is passed through a plurality of filter layers to adsorb dust by the filter layers, and further, air passing through the filter layers is passed through a washing net sprinkled with fresh water to generate dust. It is provided that the air from which the air has been removed is exhausted from the exhaust port.
【0003】[0003]
【発明が解決しようとする課題】ところが、このような
従来の粉塵除去処理方法によれば、切羽付近において複
数のフィルタにより粉塵を除去するため、粉塵の濃度が
高い場合には、大量の粉塵を一気に吸引処理しなければ
ならず、そのためには処理能力の大きな装置を坑外に設
置する必要があり、能力の大きな装置を設置すると装置
が大型化して設置スペースが余分に必要となり、他の機
材の移動に支障をきたす不具合があった。また、複数の
フィルタ層に粉塵を吸着することにより粉塵の除去が行
なわれるので、作業環境を悪化させないように維持する
には、複数のフィルタ層を頻繁に交換する必要があり、
フィルタ交換に手間取るという不具合があった。本発明
は前記事情に鑑み案出されたものであって、本発明の目
的は、坑外の設置スペースを最小限にし、フィルタの交
換作業をなくし、粉塵の除去処理を確実に行なえ、坑内
環境の向上を図れるトンネル工事における粉塵除去処理
方法及び粉塵除去処理装置を提供することにある。
However, according to such a conventional dust removal processing method, since dust is removed by a plurality of filters near the face, a large amount of dust is removed when the dust concentration is high. It is necessary to perform suction processing at once, and for that purpose it is necessary to install a device with a large processing capacity outside the mine, and if a device with a large processing capacity is installed, the device will become large and an extra installation space will be required. There was a problem that interfered with the movement of the. Further, since the dust is removed by adsorbing the dust to the plurality of filter layers, it is necessary to frequently replace the plurality of filter layers in order to maintain the work environment without deteriorating.
There was a problem that it took time to replace the filter. The present invention has been devised in view of the above circumstances, and an object of the present invention is to minimize the installation space outside the mine, eliminate the replacement work of the filter, and reliably perform the dust removal processing, and the mine environment. It is intended to provide a dust removal processing method and a dust removal processing apparatus in tunnel construction capable of improving the quality.
【0004】[0004]
【課題を解決するための手段】前記目的を達成するた
め、請求項1記載の発明は、坑口からトンネル切羽付近
に新鮮な外気を送風し、切羽付近から発生する粉塵を坑
外に排気して粉塵を除去する方法であって、排気用送風
機が介設された風管により切羽から粉塵を周囲の坑内空
気と共に吸引して坑外のエアチャンバーへ送風し、次い
で、空気圧縮機により加圧し、加圧された汚染空気を粉
塵除去処理装置に送り、粉塵除去処理装置で粉塵処理さ
れた空気を、送風機が介設された排気ダクトにより吸引
し排気するようにしたことを特徴とする。
In order to achieve the above object, the invention according to claim 1 blows fresh outside air from the pit to the vicinity of the tunnel face and exhausts dust generated near the face to the outside of the mine. A method of removing dust, in which dust is sucked from a face by a wind pipe provided with an exhaust blower together with ambient air in the mine and blown to an air chamber outside the mine, and then pressurized by an air compressor, It is characterized in that the pressurized contaminated air is sent to the dust removal processing device, and the air dust-processed by the dust removal processing device is sucked and exhausted by an exhaust duct provided with a blower.
【0005】また、請求項2記載の発明は、坑内切羽近
傍に吸引口を臨ませて坑外に延設された風管と、前記風
管に介設された排気用送風機と、坑外に位置する前記風
管の下流端に接続されフィルタが着脱可能に装着される
と共に予備排気口が設けられたエアチャンバーとで構成
された排気装置と、前記エアチャンバー内の空気が空気
圧縮機により圧縮して送給され、この送給された空気か
ら粉塵を取り除く粉塵除去処理部と、粉塵除去処理部に
接続されると共に送風機が介設され、粉塵が取り除かれ
た空気を排気する排気塔とを備えることを特徴とする。
また、請求項3記載の発明は、ケース本体と、ケース本
体の内部に仕切られ、上部が空間部で連通された水槽部
及び空気排出部を備える粉塵除去処理装置であって、前
記水槽部は、水を貯留する水槽と、この水槽の下部に延
在し外周面に多数の孔が設けられた有孔送気管と、下端
が前記有孔送気管に接続され上部が前記水槽に貯留され
る水面よりも上方に位置し粉塵が混入された汚染空気を
前記有孔送気管に圧送する通風管と、前記水槽の上部に
配設されたフィルタと、前記フィルタに上方から散水す
る散水管と、前記水槽に清水を供給する給水管と、前記
水槽の底部に連通された排水管とで構成され、前記空気
排出部は、前記空間部に連通する上空間部と、前記上空
間部の下方に設けられた下空間部と、前記上空間部と下
空間部の境の部分に設けられ水分を除去する除水板と、
前記下空間部の底部に設けられた排水管とで構成されて
いることを特徴とする。
Further, the invention according to claim 2 is such that a wind pipe extending outside the mine with a suction port near the face of the mine face, an exhaust blower interposed in the wind pipe, and the outside of the mine. An exhaust device including an air chamber connected to a downstream end of the air tube located therein, a filter being detachably attached and a preliminary exhaust port provided, and air in the air chamber is compressed by an air compressor. And a dust removal processing unit that removes dust from the sent air, and an exhaust tower that is connected to the dust removal processing unit and has an air blower and that exhausts the air from which dust has been removed. It is characterized by being provided.
Further, the invention according to claim 3 is a dust removal processing apparatus comprising a case body, a water tank section partitioned into the inside of the case body, and an upper part of which is communicated with a space section, and an air discharge section, wherein the water tank section is , A water tank for storing water, a perforated air pipe extending to a lower portion of the water tank and provided with a large number of holes on an outer peripheral surface, a lower end connected to the perforated air pipe, and an upper portion stored in the water tank A ventilation pipe for pressure-fed contaminated air, which is located above the water surface and in which dust is mixed, to the perforated air pipe, a filter arranged in the upper part of the water tank, and a water sprinkling pipe for watering the filter from above. It is composed of a water supply pipe that supplies fresh water to the water tank, and a drain pipe that communicates with the bottom portion of the water tank, and the air discharge portion has an upper space portion that communicates with the space portion, and a lower space portion below the upper space portion. The lower space provided, and the boundary between the upper space and the lower space And removing the water plate to remove water is provided,
The drainage pipe is provided at the bottom of the lower space.
【0006】[0006]
【作用】請求項1記載の発明によれば、坑外から送風設
備により新鮮空気が坑内の切羽付近に供給され、粉塵で
汚染された空気は排気装置の風管先端の吸引口より送風
機の操作により吸引されて風管を通って坑外のエアーチ
ャンバに送られ、エアーチャンバと接続された空気送風
機でさらに加圧されて粉塵除去処理装置に送られ、粉塵
除去処理装置内で粉塵が除去され、さらに粉塵除去処理
装置に接続され送風機が介設された排気ダクトから排気
される。
According to the first aspect of the present invention, fresh air is supplied from the outside of the mine to the vicinity of the face in the mine by the blower, and dust-contaminated air is operated from the suction port at the tip of the wind pipe of the exhaust device. It is sucked by and sent to the air chamber outside the mine through the wind pipe, further pressurized by the air blower connected to the air chamber and sent to the dust removal processing device, and the dust is removed inside the dust removal processing device. Further, the exhaust air is exhausted from an exhaust duct connected to the dust removing device and provided with a blower.
【0007】請求項2記載の発明によれば、坑内におけ
る坑内切羽先端近傍で削岩機による掘削や発破により粉
塵が多量に発生すると粉塵除去処理装置が作動し、粉塵
で汚染された空気は排気用送風機により排気用吸引口か
ら風管に吸い込まれ、風管から坑外のエアーチャンバに
送られる。そして、粉塵で汚染された空気はエアーチャ
ンバから空気圧縮機により加圧して粉塵除去処理部に送
られ、粉塵除去処理部で粉塵が除去される。更に、粉塵
が除去された空気は、送風機により排気塔から排気され
る。坑内において粉塵の発生が軽微の場合は、エアチャ
ンバ内にフィルタを装着し、予備排気口を開放し、粉塵
をフィルタにより除去し、粉塵が除去された空気を予備
排気口から排気する。これにより、エアチャンバ内のフ
ィルタの交換時期を遅らせる効果がある。また、多量の
粉塵処理の時はフィルタを抜き出し、予備排気口を閉
め、前記の粉塵除去処理部に送って処理する。
According to the second aspect of the invention, when a large amount of dust is generated by excavation or blasting by a rock drilling machine near the tip of the underground face in the mine, the dust removal processing device operates and the air contaminated with the dust is exhausted. Is blown into the air pipe from the exhaust suction port by the air blower and is sent from the air pipe to the air chamber outside the mine. Then, the air contaminated with dust is pressurized from the air chamber by the air compressor and sent to the dust removal processing unit, and the dust removal processing unit removes the dust. Further, the air from which dust has been removed is exhausted from the exhaust tower by the blower. When dust is minimally generated in the mine, a filter is installed in the air chamber, the preliminary exhaust port is opened, the dust is removed by the filter, and the air from which the dust is removed is exhausted from the preliminary exhaust port. This has the effect of delaying the time to replace the filter in the air chamber. Further, when a large amount of dust is to be treated, the filter is pulled out, the preliminary exhaust port is closed, and the dust is removed and sent to the dust removal treatment section.
【0008】請求項3記載の発明によれば、空気圧縮機
と水槽内に設けた有孔送気管とが通風管によって接続さ
れ、粉塵で汚染された空気が圧送されて水槽内の有孔排
気管から気泡として送出される。これにより、水槽内で
粉塵の粒子は水に撹拌されて除去され、さらに微細な粉
塵は上部に設けたフィルタに付着する。そして、上部か
らの散水(シャワー)によりフィルタに付着した微細な
粉塵は洗浄されて水槽内に貯留されて、水槽の汚れた水
は水槽下部の排水管から濁水沈殿濾過処理槽(図示せ
ず)に送水されて沈殿濾過され清水となり、さらに給水
管から水槽に給水循環される。清浄空気は空気排出部の
上空間部から下空間部に流れ、そこで除水板により水分
が除去され、送風機により下空間部、排気ダクト、排気
塔から排気される。
According to the third aspect of the present invention, the air compressor and the perforated air pipe provided in the water tank are connected by the ventilation pipe, and the air contaminated with dust is pressure-fed and the perforated exhaust gas in the water tank is provided. It is delivered as bubbles from the tube. As a result, the particles of the dust are stirred and removed by the water in the water tank, and the finer dust adheres to the filter provided above. Then, the fine dust adhering to the filter is washed by the water spray (shower) from the upper part and stored in the water tank, and the dirty water in the water tank is discharged from the drain pipe at the lower part of the water tank to a muddy water precipitation filtration tank (not shown). The water is sent to and is filtered for precipitation to become clear water, which is further circulated from the water supply pipe to the water tank. The clean air flows from the upper space part of the air discharge part to the lower space part, where moisture is removed by the water removing plate, and is discharged from the lower space part, the exhaust duct, and the exhaust tower by the blower.
【0009】[0009]
【実施例】以下、本発明に係るトンネル工事における粉
塵除去処理方法をその装置と共に説明する。図1は粉塵
除去処理方法を説明するためのトンネル坑内の概略図、
図2は粉塵除去処理装置の断面側面図、図3は同平面図
を示す。A1はトンネル坑、A2は切羽、A3は防音
壁,A4は坑口を示し、トンネル坑A1の坑口A4側に
は、外気を吸入する送風設備1の給気管3がトンネル坑
口A4に設けられた防音壁A3を貫通して坑外からトン
ネル坑A1に配設されている。前記給気管3には押込み
用送風機5を介して風管7が連結され、風管7はトンネ
ル坑A1の上壁側に配設され、風管7の先端開口は切羽
A2に向けて配設されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A dust removing method for tunnel construction according to the present invention will be described below together with its apparatus. FIG. 1 is a schematic view of the inside of a tunnel mine for explaining the dust removal processing method,
FIG. 2 is a sectional side view of the dust removal processing device, and FIG. 3 is a plan view thereof. A1 is a tunnel pit, A2 is a face, A3 is a soundproof wall, A4 is a pit, and on the pit A4 side of the tunnel pit A1, the air supply pipe 3 of the air blower 1 for sucking the outside air is installed in the tunnel pit A4. It penetrates the wall A3 and is arranged in the tunnel pit A1 from the outside. A wind pipe 7 is connected to the air supply pipe 3 via a blower 5 for pushing, the wind pipe 7 is arranged on the upper wall side of the tunnel pit A1, and the tip opening of the wind pipe 7 is arranged toward the face A2. Has been done.
【0010】トンネル坑A1の底壁側には、排気装置9
を構成する風管11が配設されている。前記風管11の
基端は、粉塵を周囲の空気と共に吸い込む吸い込み口1
101に形成され、この吸い込み口1101は切羽A2
に向けて配設され、また、先端部が前記防音壁A3を貫
通し坑外に突出され、この風管11の先端側に粉塵除去
処理装置15が連結されている。前記風管11の途中に
は排出用送風機13が介装され、坑外に位置する風管1
1の先端側には拡径したチャンバ17が設けられてい
る。前記チャンバ17の入口部には、図2および図3に
示すように、フイルタ19が配設され、フィルタ19よ
りも下流側のチャンバ17の上部には開閉弁(図示省
略)が配設され、開閉弁の上部には予備排気口21が設
けられており、通常時、すなわち、予備排気口21は切
羽A2に大量の粉塵の発生がない場合の坑内空気の排出
に用いられる。前記チャンバ17の下部の連通孔23に
は、図2および図3に示すように、粉塵空気を圧縮して
圧送する空気圧送圧縮部25が接続され、空気圧送圧縮
部25の圧送口には複数の分岐通気管26が突設され、
分岐通気管26の先端は屈曲し下方に延出する縦通気管
27に形成されている。
An exhaust device 9 is provided on the bottom wall side of the tunnel pit A1.
The wind pipe 11 constituting the above is provided. The base end of the air duct 11 has a suction port 1 for sucking dust together with ambient air.
101, the suction port 1101 has a face A2
The dust removing processing device 15 is connected to the tip end side of the wind pipe 11 by penetrating the soundproof wall A3 and projecting to the outside of the mine. An exhaust blower 13 is provided in the middle of the wind pipe 11, and the wind pipe 1 is located outside the mine.
A chamber 17 having an enlarged diameter is provided on the tip side of 1. As shown in FIGS. 2 and 3, a filter 19 is disposed at the inlet of the chamber 17, and an opening / closing valve (not shown) is disposed above the chamber 17 downstream of the filter 19. A preliminary exhaust port 21 is provided above the on-off valve, and is used for normal time, that is, the preliminary exhaust port 21 is used to discharge underground air when a large amount of dust is not generated on the face A2. As shown in FIGS. 2 and 3, the communication hole 23 in the lower part of the chamber 17 is connected to an air pressure compression unit 25 for compressing dust air and pressure-compressing it, and a plurality of pressure injection ports of the air pressure compression unit 25 are provided. A branch ventilation pipe 26 of
A tip of the branch ventilation pipe 26 is formed as a vertical ventilation pipe 27 that bends and extends downward.
【0011】前記粉塵除去処理装置15は、図2に示す
ように、ケース本体31を備え、ケース本体31の内部
には、上部が空間部33で連通された水槽部35及び空
気排出部37が隣接して設けられている。前記水槽部3
5は、水を貯留する水槽39と、水槽39の下部に水平
に配設された複数の有孔送気管40と、水槽39に清水
を供給する給水管41と、水槽39の底部から濁水を排
出する排水管43などを備え、給水管41と排水管43
により水槽39内の水位が一定に保たれる。前記分岐通
気管26は水槽39内の水位よりも上方に位置し、縦通
気管27の下端は前記有孔送気管40にそれぞれ連結さ
れ、有孔送気管40の外周面には多数の孔40Aが形成
され、有孔送気管40の先端は閉塞されている。また、
前記水槽39の上部の開口部にはフィルタ45が配設さ
れ、このフィルタ45の上方には水を散水する複数の散
水管47が配設され、これらの散水管47は給水管49
に連結され、給水管49には給水ポンプ51が介装され
ており、粉塵が混入した空気が各有孔送気管40の孔4
0Aから水槽39内に送出され、水槽39内の水、上方
のフィルタ45により粉塵が除去される。
As shown in FIG. 2, the dust removing apparatus 15 includes a case body 31, and inside the case body 31, there are a water tank portion 35 and an air discharge portion 37, the upper portion of which is communicated with a space portion 33. Adjacent to each other. The water tank part 3
5 is a water tank 39 for storing water, a plurality of perforated air pipes 40 horizontally arranged at the bottom of the water tank 39, a water supply pipe 41 for supplying fresh water to the water tank 39, and muddy water from the bottom of the water tank 39. Equipped with a drainage pipe 43 for discharging, etc., the water supply pipe 41 and the drainage pipe 43
As a result, the water level in the water tank 39 is kept constant. The branch vent pipe 26 is located above the water level in the water tank 39, the lower end of the vertical vent pipe 27 is connected to the perforated air feed pipe 40, and the perforated air feed pipe 40 has a large number of holes 40A on its outer peripheral surface. Is formed, and the tip of the perforated air pipe 40 is closed. Also,
A filter 45 is arranged in an opening in the upper portion of the water tank 39, and a plurality of water sprinkling pipes 47 for sprinkling water are arranged above the filter 45. These water sprinkling pipes 47 are water supply pipes 49.
A water supply pump 51 is installed in the water supply pipe 49, and air mixed with dust is supplied to the holes 4 of the perforated air supply pipes 40.
The dust is removed from the water 0A into the water tank 39, and the dust in the water in the water tank 39 and the upper filter 45 are removed.
【0012】前記空気排出部37は、前記空間部33に
連通する上空間部53と、この上空間部53の底部に水
平に敷設され空気を通過させて水を除去する除水板57
と、除水板57の下方に形成された下空間部55と、下
空間部55に連結された排気管58などを備える。前記
下空間部55の下部には集水板59が設けられ、集水板
59の下部には排水管61が配設されおり、前記水槽3
9により粉塵が除去された空気が上空間部53から下空
間部55に通過する際に除水板57により除水され、除
去された水が集水板59により集められて排水管61に
より排出される。前記排気管58は下空間部55に連結
されたダクト63と、このダクトに連結され上方に起立
する排気塔65などで構成され、ダクト63と排気塔6
5間に送風機67が介装されている。なお、前記空気圧
送圧縮部25や粉塵除去処理装置15は、坑内A1に大
量の粉塵が発生した場合に使用される。また、前記排水
管43および排水管61は不図示の沈澱濾過槽を介して
吸水管41に連結され、排水が浄化されて再度水槽31
に還流される。
The air discharge portion 37 is provided with an upper space portion 53 communicating with the space portion 33, and a water removing plate 57 laid horizontally on the bottom portion of the upper space portion 53 to allow air to pass therethrough and remove water.
And a lower space 55 formed below the water removal plate 57, an exhaust pipe 58 connected to the lower space 55, and the like. A water collecting plate 59 is provided below the lower space 55, and a drain pipe 61 is arranged below the water collecting plate 59.
When the air from which the dust is removed by 9 passes from the upper space portion 53 to the lower space portion 55, the water is removed by the water removing plate 57, and the removed water is collected by the water collecting plate 59 and discharged by the drain pipe 61. To be done. The exhaust pipe 58 is composed of a duct 63 connected to the lower space 55 and an exhaust tower 65 connected to the duct and standing upright.
A blower 67 is interposed between the five. In addition, the air pressure compression unit 25 and the dust removal processing device 15 are used when a large amount of dust is generated in the pit A1. The drainage pipe 43 and the drainage pipe 61 are connected to the water absorption pipe 41 via a settling filtration tank (not shown) to purify the drainage water and to restore the water tank 31 again.
Is returned to.
【0013】次に、送風設備1、排気装置9、粉塵除去
処理装置15の動作について説明する。まず、送風設備
1の押込み用送風機5を駆動すると、給気管3から取入
れられた新鮮な外気が、風管7を通じて先端開口から切
羽A2の付近に供給される。同時に、坑内A1に大量の
粉塵が発生しない通常時には、予備排気口21の開閉弁
を開放し、風管11の排出用送風機13を駆動する。こ
れにより切羽A2付近の粉塵空気が風管11の吸い込み
口1101され、チャンバ17に設けられたフィルタ1
9により粉塵を除去して清浄空気が予備排気口21から
大気に排出される。
Next, the operation of the blower 1, the exhaust device 9, and the dust removal processing device 15 will be described. First, when the pushing blower 5 of the blower equipment 1 is driven, fresh outside air taken in from the air supply pipe 3 is supplied from the tip opening to the vicinity of the face A2 through the wind pipe 7. At the same time, at a normal time when a large amount of dust is not generated in the mine A1, the opening / closing valve of the preliminary exhaust port 21 is opened and the blower 13 for discharging the wind pipe 11 is driven. As a result, the dust air near the face A2 is sucked into the air duct 11 by the suction port 1101, and the filter 1 provided in the chamber 17 is provided.
Dust is removed by 9 and clean air is discharged from the preliminary exhaust port 21 to the atmosphere.
【0014】坑内A1に大量の粉塵が発生した場合に
は、フィルタ19を抜き出すと共に予備排気口21の開
閉弁を閉止し、給水管41から水を水槽39に給水し、
散水管47の給水ポンプ51を駆動し、風管11の排出
用送風機13および送風機67を駆動する。これにより
切羽A2付近の粉塵が周囲の坑内空気と共に風管11の
吸い込み口1101から吸入され、そのまま風管11を
経てトンネル坑外のチャンバ17に送給される。そし
て、坑内空気はチャンバ17から空気圧送圧縮部25に
送給され、空気圧送圧縮部25により水槽39の水圧よ
りも高い圧力で加圧され、分岐通気管26、縦通気管2
7から有孔送気管40に圧縮圧送され、有孔送気管40
の多数の孔40Aから水槽39の水内に気泡として送出
される。
When a large amount of dust is generated in the mine A1, the filter 19 is pulled out, the opening / closing valve of the preliminary exhaust port 21 is closed, and water is supplied from the water supply pipe 41 to the water tank 39.
The water supply pump 51 of the sprinkler pipe 47 is driven, and the discharge blower 13 and the blower 67 of the wind pipe 11 are driven. As a result, the dust near the face A2 is sucked together with the surrounding mine air from the suction port 1101 of the air duct 11, and is sent to the chamber 17 outside the tunnel via the air duct 11 as it is. Then, the mine air is sent from the chamber 17 to the air pressure sending / compressing unit 25, and is pressurized by the air pressure sending / compressing unit 25 at a pressure higher than the water pressure in the water tank 39.
7 is compressed and pressure-fed to the perforated air pipe 40,
Are discharged as bubbles into the water in the water tank 39 through the large number of holes 40A.
【0015】水槽39内では、気泡は水に撹拌されて粒
子の大きい粉塵が水に混入して除去され、さらに、気泡
内に残存する微細な粉塵は水面に浮上し、水面上のフィ
ルタ45に付着して除去され、フィルタ45に付着した
粉塵は上部の散水管47からの散水により水槽39内に
洗い流される。フィルタ19及び水槽部35により粉塵
が除去された清浄空気は空間部33から上空間部53に
至り、除水板57により水分が除去されて下空間部22
に移動する。この時、除水板57により除去された水は
集水板59により集められ、排水管61により排水され
る。そして、水分及び粉塵が除去された清浄空気は、吸
引ダクト63を通じて排気塔65から大気に排出され
る。
In the water tank 39, the air bubbles are agitated by the water, and the dust with large particles is mixed with the water to be removed. Further, the fine dust remaining in the air bubbles floats on the water surface and is filtered by the filter 45 on the water surface. The dust that adheres and is removed and that adheres to the filter 45 is washed into the water tank 39 by the water spray from the water spray pipe 47 at the upper part. The clean air from which the dust has been removed by the filter 19 and the water tank portion 35 reaches the upper space portion 53 from the space portion 33, and the water is removed by the water removal plate 57 so that the lower space portion 22.
Go to At this time, the water removed by the water removing plate 57 is collected by the water collecting plate 59 and drained by the drain pipe 61. Then, the clean air from which moisture and dust have been removed is discharged from the exhaust tower 65 to the atmosphere through the suction duct 63.
【0016】本実施例によれば、切羽付近の粉塵を周囲
の坑内空気と共に風管11により吸い込み、そのままト
ンネル坑外に送給し、トンネル坑外において粉塵の除去
処理を行なうようにしたので、トンネル坑外に処理能力
の大きい大型の粉塵除去処理装置を設置する不具合を解
消でき、また、フィルタの交換作業をなくすことができ
る。また、本実施例によれば、粉塵除去処理部15の水
槽39やフィルタ45によって除去されるので、坑内A
1に大量の粉塵の発生がある場合でも、装置を大型化す
ることなく、確実に、且つ、短時間のうちに粉塵を除去
することができ、さらに、坑内A1の空気に混在してい
る粉塵の確実な除去が可能となるので、坑内環境の向上
を図ることができるとともに、工事現場の周囲の環境の
悪化を防止することが可能となる。
According to the present embodiment, the dust near the face is sucked together with the ambient air in the tunnel by the wind tube 11 and is sent to the outside of the tunnel as it is, so that the dust removal processing is performed outside the tunnel. It is possible to eliminate the problem of installing a large dust removal processing device with a large processing capacity outside the tunnel, and to eliminate the need for filter replacement work. Further, according to the present embodiment, since it is removed by the water tank 39 of the dust removal processing unit 15 and the filter 45, the pit A
1 can generate a large amount of dust, the dust can be removed reliably and in a short time without increasing the size of the device. Furthermore, the dust mixed in the air in the pit A1 Since it is possible to reliably remove the mine, it is possible to improve the environment inside the mine and prevent the environment around the construction site from deteriorating.
【0017】[0017]
【発明の効果】以上の説明で明らかなように、本発明に
係る粉塵除去処理方法によれば、トンネル坑外に処理能
力の大きい大型の粉塵除去処理装置を設置する必要がな
くなり、また、フィルタの交換作業を省け、確実に粉塵
を除去処理して坑内環境の向上を図ることができる。ま
た、本発明に係る粉塵除去処理装置によれば、坑内に大
量の粉塵の発生がある場合でも、装置を大型化せず、確
実に且つ短時間のうちに粉塵を除去することが可能とな
る。
As is apparent from the above description, according to the dust removal processing method of the present invention, it is not necessary to install a large dust removal processing apparatus having a large processing capacity outside the tunnel pit, and the filter can be used. It is possible to eliminate the replacement work of and to reliably remove dust to improve the underground environment. Further, according to the dust removal processing apparatus of the present invention, even if a large amount of dust is generated in the mine, it is possible to reliably remove the dust in a short time without increasing the size of the apparatus. .
【図面の簡単な説明】[Brief description of drawings]
【図1】粉塵除去処理方法を説明するためのトンネル坑
内の概略図である。
FIG. 1 is a schematic view of the inside of a tunnel for explaining a dust removal processing method.
【図2】粉塵除去処理装置の断面側面図である。FIG. 2 is a cross-sectional side view of the dust removal processing device.
【図3】粉塵除去処理装置の一部切り欠き平面図であ
る。
FIG. 3 is a partially cutaway plan view of the dust removal processing device.
【符号の説明】[Explanation of symbols]
1 送風設備 9 排気装置 11 風管 15 粉塵除去処理装置 21 予備排気口 31 ケース本体 35 水槽部 37 空気排出部 39 水槽 40 有孔送気管 45 フィルタ 47 散水管 57 除水板 58 排気管 1 Blower facility 9 Exhaust device 11 Air pipe 15 Dust removal treatment device 21 Preliminary exhaust port 31 Case body 35 Water tank part 37 Air discharge part 39 Water tank 40 Perforated air pipe 45 Filter 47 Water sprinkling pipe 57 Water removing plate 58 Exhaust pipe

Claims (3)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 坑口からトンネル切羽付近に新鮮な外気
    を送風し、切羽付近から発生する粉塵を坑外に排気して
    粉塵を除去する方法であって、 排気用送風機が介設された風管により切羽から粉塵を周
    囲の坑内空気と共に吸引して坑外のエアチャンバーへ送
    風し、 次いで、空気圧縮機により加圧し、加圧された汚染空気
    を粉塵除去処理装置に送り、 粉塵除去処理装置で粉塵処理された空気を、送風機が介
    設された排気ダクトにより吸引し排気するようにした、 ことを特徴とするトンネル工事における粉塵除去処理方
    法。
    1. A method for removing fresh air by blowing fresh outside air from a wellhead to the vicinity of a tunnel face and exhausting dust generated from the vicinity of the faceface to the outside of the mine, wherein an air blower for exhaust is provided. The dust is sucked from the face together with the surrounding mine air by the air blower and blown into the air chamber outside the mine.Then, it is pressurized by the air compressor, and the pressurized contaminated air is sent to the dust removal treatment device, where it is discharged by the dust removal treatment device. A method for removing dust in tunnel construction, characterized in that the dust-treated air is sucked and exhausted by an exhaust duct provided with a blower.
  2. 【請求項2】 坑内切羽近傍に吸引口を臨ませて坑外に
    延設された風管と、前記風管に介設された排気用送風機
    と、坑外に位置する前記風管の下流端に接続されフィル
    タが着脱可能に装着されると共に予備排気口が設けられ
    たエアチャンバーとで構成された排気装置と、 前記エアチャンバー内の空気が空気圧縮機により圧縮し
    て送給され、この送給された空気から粉塵を取り除く粉
    塵除去処理部と、 粉塵除去処理部に接続されると共に送風機が介設され、
    粉塵が取り除かれた空気を排気する排気塔と、 を備えることを特徴とするトンネル工事における粉塵除
    去処理装置。
    2. A wind pipe extending outside the mine with a suction port near the face of the mine face, an exhaust blower interposed in the wind pipe, and a downstream end of the wind pipe located outside the mine. Connected to the filter, the filter is removably attached, and an air chamber having an auxiliary exhaust port is provided, and the air in the air chamber is compressed by an air compressor and fed. A dust removal processing unit that removes dust from the supplied air, and a blower installed while being connected to the dust removal processing unit,
    A dust removal processing device for tunnel construction, comprising: an exhaust tower that exhausts air from which dust has been removed.
  3. 【請求項3】 ケース本体と、ケース本体の内部に仕切
    られ、上部が空間部で連通された水槽部及び空気排出部
    を備える粉塵除去処理装置であって、 前記水槽部は、 水を貯留する水槽と、 この水槽の下部に延在し外周面に多数の孔が設けられた
    有孔送気管と、 下端が前記有孔送気管に接続され上部が前記水槽に貯留
    される水面よりも上方に位置し粉塵が混入された汚染空
    気を前記有孔送気管に圧送する通風管と、 前記水槽の上部に配設されたフィルタと、 前記フィルタに上方から散水する散水管と、 前記水槽に清水を供給する給水管と、 前記水槽の底部に連通された排水管とで構成され、 前記空気排出部は、 前記空間部に連通する上空間部と、 前記上空間部の下方に設けられた下空間部と、 前記上空間部と下空間部の境の部分に設けられ水分を除
    去する除水板と、 前記下空間部の底部に設けられた排水管とで構成されて
    いる、 粉塵除去処理装置。
    3. A dust removal processing device, comprising: a case body; and a water tank section partitioned into the inside of the case body and having an upper part communicated with a space section, and an air discharge section, wherein the water tank section stores water. A water tank, a perforated air pipe extending to the lower part of the water tank and having a large number of holes on the outer peripheral surface, a lower end connected to the perforated air pipe, and an upper part above the water surface stored in the water tank. Ventilation pipes located under pressure to feed contaminated air mixed with dust to the perforated air pipe, a filter arranged on the upper part of the water tank, a water spray pipe for sprinkling the filter from above, and fresh water to the water tank. It is composed of a water supply pipe for supplying and a drain pipe communicating with the bottom of the water tank, and the air discharging part includes an upper space part communicating with the space part, and a lower space provided below the upper space part. Section and the boundary between the upper space section and the lower space section. A dust removal treatment device comprising a water removal plate for removing moisture and a drainage pipe provided at the bottom of the lower space.
JP19488594A 1994-07-27 1994-07-27 Dust removal treatment method and dust removal treatment device in tunnel construction Expired - Fee Related JP3397224B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19488594A JP3397224B2 (en) 1994-07-27 1994-07-27 Dust removal treatment method and dust removal treatment device in tunnel construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19488594A JP3397224B2 (en) 1994-07-27 1994-07-27 Dust removal treatment method and dust removal treatment device in tunnel construction

Publications (2)

Publication Number Publication Date
JPH0842300A true JPH0842300A (en) 1996-02-13
JP3397224B2 JP3397224B2 (en) 2003-04-14

Family

ID=16331947

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3397224B2 (en)

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CN102296955A (en) * 2011-05-27 2011-12-28 山东科技大学 Dedusting method with closed excavating working face and system thereof
CN102410037A (en) * 2011-08-29 2012-04-11 甘肃容和矿用设备集团有限公司 Mine explosion-proof large-capacity equipment housing and manufacturing process thereof
CN102434183A (en) * 2011-11-03 2012-05-02 谢飞鸿 Air purifier for clearing away harmful gases and dust for long tunneling working surface
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CN104727818A (en) * 2015-03-23 2015-06-24 葛洲坝集团第五工程有限公司 Tunneling movable dust removal device
CN106110804A (en) * 2016-05-25 2016-11-16 煤炭工业济南设计研究院有限公司 A kind of haze processing system based on abandoned mine
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WO2019006656A1 (en) * 2017-07-04 2019-01-10 陆健 Sprinkler dust removal device
CN109611142A (en) * 2018-12-05 2019-04-12 贵州大学 A kind of coal mine gas fire prevention fast pumping device
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JP2008231749A (en) * 2007-03-20 2008-10-02 Toda Constr Co Ltd Cleaning device for tunnel dust and exhaust gas
CN102296955A (en) * 2011-05-27 2011-12-28 山东科技大学 Dedusting method with closed excavating working face and system thereof
CN102410037A (en) * 2011-08-29 2012-04-11 甘肃容和矿用设备集团有限公司 Mine explosion-proof large-capacity equipment housing and manufacturing process thereof
CN102434183A (en) * 2011-11-03 2012-05-02 谢飞鸿 Air purifier for clearing away harmful gases and dust for long tunneling working surface
CN102505952A (en) * 2011-11-03 2012-06-20 谢飞鸿 Method for clearing harmful gas and dust in long tunnel
CN104727818A (en) * 2015-03-23 2015-06-24 葛洲坝集团第五工程有限公司 Tunneling movable dust removal device
CN106110804A (en) * 2016-05-25 2016-11-16 煤炭工业济南设计研究院有限公司 A kind of haze processing system based on abandoned mine
WO2019006656A1 (en) * 2017-07-04 2019-01-10 陆健 Sprinkler dust removal device
CN108224664A (en) * 2017-12-29 2018-06-29 招商局重庆交通科研设计院有限公司 The method that air cleaner purifies in haze area home living environment
CN108612557A (en) * 2018-04-25 2018-10-02 陆淑鑫 A kind of tunnel Multifunction ventilated watering device
CN108843367A (en) * 2018-07-17 2018-11-20 芜湖芬特勘测服务有限公司 A kind of device of the bridge convenient for tunnel ventilation
CN109611142A (en) * 2018-12-05 2019-04-12 贵州大学 A kind of coal mine gas fire prevention fast pumping device
CN109798144A (en) * 2019-04-02 2019-05-24 河北科技大学 A kind of constructing tunnel catches dirt spraying device with high pressure
CN110230478A (en) * 2019-04-30 2019-09-13 中国一冶集团有限公司 Armature boring depositing dust protective device

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