JP2008231749A - Cleaning device for tunnel dust and exhaust gas - Google Patents

Cleaning device for tunnel dust and exhaust gas Download PDF

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JP2008231749A
JP2008231749A JP2007071718A JP2007071718A JP2008231749A JP 2008231749 A JP2008231749 A JP 2008231749A JP 2007071718 A JP2007071718 A JP 2007071718A JP 2007071718 A JP2007071718 A JP 2007071718A JP 2008231749 A JP2008231749 A JP 2008231749A
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JP4722070B2 (en
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Kiyoshi Suzuki
清 鈴木
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Toda Constr Co Ltd
戸田建設株式会社
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<P>PROBLEM TO BE SOLVED: To substantially eliminate the need of the maintenances such as the cleaning and replacement of filters and enhance dust collecting efficiency by reducing the velocity and streamlining the flow of polluted air in a cleaning device for tunnel dust which removes dust by water spray and the filter. <P>SOLUTION: An air inlet 2a is formed at the one end upper part of a generally rectangular parallelepiped casing body 2, and an air outlet 2b is formed at the opposed other end upper part. A partition wall 3 having a lower portion in which a flow passage is formed is installed in the casing body 2. A first space 4 is formed on the air inlet side, and a second space is formed on the air outlet side. A flow passage in which the air flowing into the air inlet 2a lowers in the first space 4, passes through a flow passage on the lower end side of the partition wall 3, and rises through the second space 5 is formed. The filters 6, 7 of multiple stages are disposed at the intermediate stage portion of the first space 4 at an interval in the vertical direction. A spraying facility 8 for spraying downward is disposed on the upper side of each of the filters 6, 7. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、トンネル内の汚染空気から粉塵や排気ガス等を取り除き、清浄化するための清浄装置に関する。   The present invention relates to a cleaning device for removing dust and exhaust gas from contaminated air in a tunnel for cleaning.

山岳トンネルの掘削では、発破、TBM(Tunnel Boring Machine)や各種トンネル施工機械からの排気ガス等によって、坑内に多くの粉塵や排気ガス等が浮遊することになるため、作業員の健康と安全を確保するために坑内換気が行われる。坑内換気は、坑内に風管を設けるとともに、送風機を取付け、坑内の汚染空気を坑外に排出することによるが、主に作業空間となる切羽近傍領域では、集塵機を配置して、空気中の粉塵や排気ガスを捕集して清浄化を図るようにしている。   In excavation of mountain tunnels, blasting, exhaust gas from TBM (Tunnel Boring Machine) and various tunnel construction machines will cause a lot of dust and exhaust gas to float in the mine. Underground ventilation is carried out to ensure it. In the mine ventilation, a wind pipe is installed in the mine, a blower is attached, and polluted air in the mine is discharged to the outside of the mine. Dust and exhaust gas are collected and cleaned.

前記集塵機としては、従来より、乾式フィルタによって粉塵等をろ過捕集して除塵を行うフィルタ式集塵機と、コロナ放電によって帯電させた多数の電極板のを通過させ、粉塵等を静電力によって電極板に捕集させる電子式集塵機等が従来より多く使用されてきた。   As the dust collector, conventionally, a filter-type dust collector that filters and collects dust and the like by a dry filter and removes the dust and a large number of electrode plates charged by corona discharge are passed, and the dust and the like are passed through the electrode plate by electrostatic force. Electronic dust collectors and the like that are collected in the past have been used more than ever.

しかし、前記フィルタ式集塵機は、フィルタが粉塵によって目詰まりするため、頻繁にフィルタの交換を行わなければならず、維持管理が煩雑であり、そのためのコストが掛かるなどの問題があり、前記電子式集塵機は、粒径の大きい領域での集塵率が低い、設備コストが高いなどの問題があった。   However, the filter-type dust collector has a problem that the filter is clogged with dust, so the filter must be frequently replaced, maintenance is complicated, and costs are increased. The dust collector has problems such as a low dust collection rate in a region having a large particle size and a high equipment cost.

近年、これらの問題点を解決すべく、下記特許文献1では、所定水位の水が貯えられた貯水槽の内部をフィルタの取付けによって浄化室と、排気室とに仕切り、前記浄化室の上部にほぼ90°折れ曲がる吸込ダクトを接続し、その吸込ダクト内に吸引ファンを設け、前記排気室の上部にはほぼ90°折曲がる排気ダクトを、その排気口が前記吸込ダクトの吸気口に対して逆向きとなるよう接続し、前記貯水槽の外部にはその内部の貯水の濁度および水位を検出する透明な検出管を設け、貯水槽内の貯水を吸い込むポンプの吐出口に3方コックの入口ポートを接続し、その3方コックに形成された2つの出口ポートの一方に前記浄化室の水面上に配置された散水管を接続し、他方の出口ポートに貯水槽内の懸濁化した貯水を排出するための排水管を接続し、前記散水管にポンプからの加圧水を上向きに噴射する多数のノズルを設けた湿式集塵機が提案されている。   In recent years, in order to solve these problems, in Patent Document 1 below, a water storage tank in which water of a predetermined water level is stored is partitioned into a purification chamber and an exhaust chamber by attaching a filter, A suction duct that is bent by approximately 90 ° is connected, a suction fan is provided in the suction duct, an exhaust duct that is bent by approximately 90 ° is provided at the upper part of the exhaust chamber, and the exhaust port is opposite to the intake port of the suction duct. Connected to the direction of the tank, a transparent detector tube is provided outside the water tank to detect the turbidity and water level of the water inside the water tank, and the inlet of the three-way cock is connected to the discharge port of the pump that sucks the water in the water tank. A port is connected, one of the two outlet ports formed in the three-way cock is connected to a water spray pipe disposed on the water surface of the purification chamber, and the other outlet port is suspended in the water storage tank. Drain pipe for discharging A wet dust collector is proposed in which a large number of nozzles are connected to the watering pipe and the pressurized water from the pump is sprayed upward.

また、下記特許文献2では、トンネル坑内を走行可能な台車上に搭載され、トンネル切羽の進行に伴って移動してトンネル坑内の換気を行うトンネル坑内換気用集塵機であって、前記トンネル切羽側を向いた吸込み口から該集塵機内に汚染空気を吸引し、流入させる吸込みダクトと、該吸込みダクト端と連通し前記集塵機内の下部を画成してなる空気滞留空間と、該空気滞留空間の上方に位置し、上下方向に所定間隔をあけて複数段が配置され、前記汚染空気を前記空気滞留空間から上昇通過させて除塵するフィルタ群と、各段のフィルタの上方に配管され、前記汚染空気を散水除塵するとともに各フィルタ表面を洗浄する散水手段と、前記集塵機の頂部に位置しトンネル坑口側を向いた排気口とを有する除塵エリアとから構成され、前記吸引ダクトから流入した汚染空気の気流速度を、前記空気滞留空間で減速して静的な風圧に変換して前記散水手段により散水しながら前記フィルタ群を上昇通過させて除塵し、前記排気口から浄化空気を排出するトンネル坑内換気用集塵機が提案されている。
特開2006−239693号公報 特開2005−68950号公報
Moreover, in the following Patent Document 2, a dust collector for tunnel mine ventilation that is mounted on a carriage that can travel in a tunnel mine and moves as the tunnel face proceeds to ventilate the tunnel mine, A suction duct that sucks and flows contaminated air into the dust collector from the suction port facing to, an air retention space that communicates with an end of the suction duct and defines a lower portion in the dust collector, and above the air retention space. A plurality of stages arranged at predetermined intervals in the vertical direction, a filter group for removing dust by allowing the contaminated air to rise and pass through the air retention space, and piping above each stage of the filter, And a dust removal area having a water spray means for cleaning the surface of each filter and an exhaust port located at the top of the dust collector and facing toward the tunnel wellhead. The airflow velocity of the contaminated air flowing in from the duct is reduced in the air retention space and converted into a static wind pressure, and while passing through the watering means, the filter group is passed upwardly to remove dust and purified from the exhaust port. A dust collector for tunnel mine ventilation that exhausts air has been proposed.
JP 2006-239893 A JP 2005-68950 A

しかしながら、前記特許文献1記載の湿式集塵機は、流入した汚染空気に対して上向きで圧力水を噴射して、噴射水との接触によって粉塵が捕集された後、フィルターを通過して排気されるものであるが、噴射水との接触のみでは粉塵が十分に捕集されず、その後にフィルターを通過する過程で、空気中に浮遊している粉塵がフィルターに付着して目詰まりを起こすおそれがあるため、フィルターの洗浄や交換のメンテナンスが依然として必要である。   However, the wet dust collector described in Patent Document 1 injects pressure water upward with respect to the inflowing contaminated air, and after dust is collected by contact with the injection water, it is exhausted through a filter. However, the dust may not be collected sufficiently only by contact with the jet water, and the dust floating in the air may adhere to the filter and cause clogging during the subsequent passage through the filter. Therefore, there is still a need for maintenance of filter cleaning and replacement.

これに対して、前記特許文献2記載の集塵機の場合は、フィルターに向けて散水を行うため、噴射水によってフィルターが同時に洗浄されるため、目詰まりなどの問題は解消することができる。しかし、散水除塵を行う場合は、風速を十分に低減すること、及び水滴による捕集効果を高めるために空気の整流化を図ることが重要となるが、特許文献2記載の集塵機の場合は、散水方向と気流方向とが対向流となっているとともに、空気滞留空間で風速に偏流が生じ易く、乱流の発生によって、高い集塵効果が得られづらいなどの問題があった。   On the other hand, in the case of the dust collector described in Patent Document 2, since the water is sprayed toward the filter, the filter is simultaneously washed with the jet water, so that problems such as clogging can be solved. However, when performing water spray dust removal, it is important to sufficiently reduce the wind speed and to rectify the air in order to enhance the collection effect by water droplets, but in the case of the dust collector described in Patent Document 2, While the water spray direction and the air flow direction are counterflows, there is a problem that the wind velocity tends to be uneven in the air retention space, and it is difficult to obtain a high dust collection effect due to the occurrence of turbulence.

そこで本発明の主たる課題は、散水とフィルターとによって除塵を行うトンネル粉塵・排気ガス等のための清浄装置において、フィルターの洗浄や交換などのメンテナンスが実質的に不要か大幅な省力化が可能であるとともに、導入した汚染空気の風速低減及び整流化を図ることにより集塵効率の高い清浄装置を提供することにある。   Therefore, the main problem of the present invention is that it is substantially unnecessary to perform maintenance such as cleaning and replacement of the filter in the cleaning device for tunnel dust, exhaust gas, etc., which removes dust by watering and a filter, and can greatly save labor. Another object is to provide a cleaning device with high dust collection efficiency by reducing the wind speed and rectifying the introduced contaminated air.

前記課題を解決するために請求項1に係る本発明として、散水とフィルターとの併用によって除塵を行うトンネル粉塵・排気ガス等のための清浄装置において、
略立直体状のケーシング体の一方側端面の上部に空気流入口を形成するとともに、対向する他方側端面の上部に空気排出口を形成し、前記ケーシング体の内部に下側部分を流路とする仕切り壁を設け、前記空気流入口側に相対的に大きな第1空間と、前記空気排出口側に相対的に小さな第2空間とを形成することにより、前記空気流入口から流入した空気が前記第1空間を下降し、前記仕切り壁の下端側流路を通過し、前記第2空間を上昇して空気排出口に至る流路が形成され、
前記第1空間の中段部分に、1又は上下方向に間隔を空けて複数段のフィルターが配置されるとともに、少なくとも一つ以上のフィルター面の上部に下方側に向けて噴射する散水設備が配置され、
前記第1空間の底面が、空気中から捕集された粉塵汚泥の滞留部となっていることを特徴とするトンネル粉塵・排気ガス等の清浄装置が提供される。
In order to solve the above-mentioned problem, as the present invention according to claim 1, in a cleaning device for tunnel dust, exhaust gas, etc. that removes dust by using a combination of watering and a filter,
An air inflow port is formed at the upper part of the one end face of the substantially upright casing body, and an air discharge port is formed at the upper part of the opposite other end face, and the lower part is formed as a flow path inside the casing body. The partition wall is provided, and a relatively large first space is formed on the air inlet side and a relatively small second space is formed on the air outlet side. A flow path is formed that descends the first space, passes through the lower-end-side flow path of the partition wall, rises the second space, and reaches the air outlet.
A plurality of stages of filters are arranged in the middle part of the first space at intervals of 1 or up and down, and watering equipment for injecting downwards is arranged above at least one filter surface. ,
A cleaning device for tunnel dust / exhaust gas or the like is provided, wherein the bottom surface of the first space serves as a retention portion for dust sludge collected from the air.

上記請求項1記載の発明では、ケーシング体内で、前記空気流入口から流入した空気が前記第1空間を下降し、前記仕切り壁の下端側流路を通過し、前記第2空間を上昇して空気排出口に至る流路が形成され、前記第1空間の中段部分に、1又は上下方向に間隔を空けて複数段のフィルターが配置されるとともに、少なくとも一つ以上のフィルター面の上部に散水設備が配置される。すなわち、本発明では、実質的に除塵部となる前記第1空間においては、流入空気がそれまでの流路面積に比べて大空間となる第1空間に放出された段階で、風速が著しく低減されることになる。その後、下降流となって流れる際に、気流方向に向かって均一に噴射された水の噴射エネルギーによって気流が整流化されるとともに、1又は複数段で設置されたフィルターによって気流が整流化される。また、気流方向と水の噴射方向とが同方向となっているため、相対速度差が小さく、噴射された水滴によって粉塵が効果的に捕捉されるようになる。また、捕捉された粉塵等は水滴と共に、水噴射エネルギーによってフィルター面に叩き付けられ、ここで速度エネルギーを失った粉塵はフィルターで混合され、散水によって洗い流されるように落下する。また、本浄化装置では、ケーシング内を除塵を行う第1空間と、浄化後の空気の排出流路となる第2空間とに分割されているため、排出される空気が第1空間の空気に干渉せず、整流化が容易に図れるようになっている。   In the first aspect of the present invention, the air that has flowed in from the air inlet in the casing body descends the first space, passes through the flow path on the lower end side of the partition wall, and ascends the second space. A flow path to the air discharge port is formed, and a plurality of stages of filters are arranged in the middle part of the first space with an interval in the vertical direction, and water is sprayed on the upper part of at least one or more filter surfaces. Equipment is arranged. That is, in the present invention, in the first space that is substantially the dust removing portion, the wind speed is significantly reduced at the stage where the inflowing air is discharged into the first space that is a large space compared to the flow path area until then. Will be. After that, when flowing as a downward flow, the air flow is rectified by the jet energy of water uniformly injected toward the air flow direction, and the air flow is rectified by a filter installed in one or a plurality of stages. . Moreover, since the airflow direction and the water injection direction are the same direction, the relative speed difference is small, and dust is effectively captured by the injected water droplets. Also, the trapped dust and the like are struck against the filter surface by water jet energy together with water droplets, and the dust that has lost the velocity energy is mixed by the filter and falls so as to be washed away by watering. Further, in the present purification device, the inside of the casing is divided into a first space for dust removal and a second space that serves as a discharge flow path for the purified air, so that the discharged air becomes air in the first space. Rectification is easily achieved without interference.

これに対して、空気の気流方向と、散水の噴射方向とが対向流となる前記特許文献1記載の除塵装置の場合は、気流の速度エネルギーと噴射の速度エネルギーとが衝突しあって乱流が生起し易いとともに、水滴と粉塵との相対的な速度差が増大することになるため、水滴によって粉塵が捕捉され難く、水滴による捕集効果が低下することになる。また、前記除塵装置は、単一の空間(空気滞留空間)に給気口と排気口とを設けているため、除塵後の排気空気の気流によって空気滞留空間内の気流が乱され、全体の空気の流れが乱され易くなる。   On the other hand, in the case of the dust removing device described in Patent Document 1 in which the airflow direction of the air and the spraying direction of the water spray are counterflows, the velocity energy of the airflow and the velocity energy of the jet collide with each other, so Is likely to occur, and the relative speed difference between the water droplet and the dust increases, so that the dust is hardly captured by the water droplet, and the collection effect by the water droplet is reduced. In addition, since the dust removing device has an air supply port and an exhaust port in a single space (air retention space), the air flow in the air retention space is disturbed by the air flow of exhaust air after dust removal, The air flow is likely to be disturbed.

請求項2に係る本発明として、前記第1空間の上段部分に、空間を上下に分割する第1分流壁と、この第1分流壁の後端部分から延長され、R曲面部を介して鉛直方向に流路変更を行う第2分流壁とによって分割流路が形成されている請求項1記載のトンネル粉塵・排気ガス等の清浄装置が提供される。   According to a second aspect of the present invention, the upper part of the first space is divided into a first diverting wall that divides the space vertically and a rear end part of the first diverting wall. 2. A cleaning device for tunnel dust, exhaust gas, etc. according to claim 1, wherein a divided flow path is formed by a second branch wall that changes the flow path in the direction.

上記請求項2記載の発明では、前記第1空間の上段部分に、空間を上下に分割する第1分流壁と、この第1分流壁の後端部分から延長され、R曲面部を介して鉛直方向に流路変更を行う第2分流壁とによって分割流路を形成するようにしたものである。空気流入口の近傍と、これと離間した離間部分とでは気流速度差が大きいため、両者の干渉によって偏流が起きやすい。そこで、流路を分割して互いの干渉を無くすことによって、気流を整流化し易くなる。   In the second aspect of the invention, the upper part of the first space has a first branch wall that divides the space up and down, and extends from the rear end part of the first branch wall, and passes vertically through the R curved surface part. A divided flow path is formed by a second branch wall that changes the flow path in the direction. Since there is a large air flow velocity difference between the vicinity of the air inlet and the spaced apart portion, drift is likely to occur due to interference between the two. Therefore, the airflow can be easily rectified by dividing the flow path to eliminate mutual interference.

請求項3に係る本発明として、前記フィルターは、プラスチック繊維を立体網状に成形し、表面開口率が80〜95%であるフィルター材を用いている請求項1,2いずれかに記載のトンネル粉塵・排気ガス等の清浄装置が提供される。   According to a third aspect of the present invention, in the tunnel dust according to any one of the first and second aspects, the filter is made of a filter material in which plastic fibers are molded into a three-dimensional network and the surface opening ratio is 80 to 95%. -A cleaning device for exhaust gas or the like is provided.

上記請求項3記載の発明では、プラスチック繊維を立体網状に成形し、表面開口率が80〜95%であるフィルター材を用いるものである。表面開口率が大きく、立体網状を成すフィルターの使用によって、目詰まりが無く、粉塵等が噴射水によって粉塵が洗い流されることになるため、実質的にメンテナンスを不要とするか、大幅な省力化が図れるようになる。   In the invention according to the third aspect, a plastic material is formed into a three-dimensional network, and a filter material having a surface opening ratio of 80 to 95% is used. The use of a filter with a large surface opening ratio and a three-dimensional net shape eliminates clogging, and the dust is washed away by the jet water, so that maintenance is substantially unnecessary or significant labor savings are achieved. It will be able to plan.

請求項4に係る本発明として、前記粉塵スラッジ滞留部の上澄水を前記散水設備に供給する散水ポンプを配設してある請求項1〜3いずれかに記載のトンネル粉塵・排気ガス等の清浄装置が提供される。   The present invention according to claim 4 is provided with a watering pump for supplying the supernatant water of the dust sludge retention part to the watering equipment. An apparatus is provided.

上記請求項4記載の発明では、粉塵汚泥の滞留部に溜まった汚水の内、上澄水のみを分離し、前記散水設備に供給する散水ポンプを配設するものである。すなわち、本清浄装置の動力は、前記散水ポンプのみで済むことになり、省エネルギー化が図れるとともに、電力量の低減によって二酸化炭素の排出量低減にも資することができるようになる。   In the invention according to the fourth aspect, a watering pump for separating only the supernatant water from the sewage collected in the staying portion of the dust sludge and supplying the watering equipment is provided. That is, the power of the cleaning device is only the watering pump, which can save energy and can contribute to the reduction of carbon dioxide emission by reducing the amount of electric power.

請求項5に係る本発明として、工事中のトンネル坑外に請求項1〜4いずれかに記載のトンネル粉塵・排気ガス等の清浄装置を設置し、トンネル内に設けられた換気用風管の坑外側端部を前記空気流入口に接続してあることを特徴とするトンネル粉塵・排気ガス等の清浄装置が提供される。   As the present invention according to claim 5, the tunnel dust / exhaust gas cleaning device according to any one of claims 1 to 4 is installed outside the tunnel mine under construction, and a ventilation wind pipe provided in the tunnel is installed. There is provided a cleaning device for tunnel dust, exhaust gas, etc., characterized in that a pit outer end is connected to the air inlet.

上記請求項5記載の発明では、本発明に係る清浄装置をトンネル坑外に設置し、トンネル内に設けられた換気用風管の坑外側端部を前記空気流入口に接続し、換気風量の全量に対して、清浄化を図るようにする。これによって、トンネル坑口付近の環境を良好に維持することが可能となる。また、従来は掘進に伴って集塵機を移動させなければならなかったが、本装置の場合は、坑外に固定的に設置されることにより、掘進に伴って行われる移動手間が無くなり、作業の大幅な省力化が図れるようになる。   In the invention according to claim 5, the cleaning device according to the present invention is installed outside the tunnel mine, the outside end portion of the ventilation wind pipe provided in the tunnel is connected to the air inlet, and the ventilation air volume is controlled. Clean up the entire amount. This makes it possible to maintain the environment near the tunnel well. Also, in the past, the dust collector had to be moved along with the excavation, but in the case of this device, the fixed installation outside the mine eliminates the time and effort required for the excavation. Significant labor savings can be achieved.

以上詳説のとおり本発明によれば、フィルターの洗浄や交換などのメンテナンスが実質的に不要か大幅な省力化が可能であるとともに、導入した汚染空気の風速低減及び整流化を図ることにより集塵効率の高いトンネル粉塵・排気ガス等の清浄装置を得ることが可能となる。   As described above in detail, according to the present invention, maintenance such as cleaning and replacement of the filter is substantially unnecessary or significant labor saving is possible, and dust collection is achieved by reducing the wind speed and rectifying the introduced contaminated air. A highly efficient cleaning device for tunnel dust, exhaust gas and the like can be obtained.

以下、本発明の実施の形態について図面を参照しながら詳述する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図1は本発明に係る清浄装置1の縦断面図、図2は図1のII−II線矢視図、図3は平面図である。   FIG. 1 is a longitudinal sectional view of a cleaning device 1 according to the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG.

本清浄装置1は、散水とフィルターとの併用によってトンネル粉塵・排気ガス等の除塵を行うものであって、略立直体状のケーシング体2の一方側端面の上部に空気流入口2aを形成するとともに、対向する他方側端面の上部に空気排出口2bを形成し、前記ケーシング体2の内部に下側部分を流路とする仕切り壁3を設け、前記空気流入口2a側に相対的に大きな第1空間4と、前記空気排出口2b側に相対的に小さな第2空間5とを形成することにより、前記空気流入口2aから流入した空気が前記第1空間4を下降し、前記仕切り壁3の下端側流路を通過し、前記第2空間5を上昇して空気排出口2bに至る流路が形成され、前記第1空間4の中段部分4Bに、1又は上下方向に間隔を空けて複数段のフィルター6,7が配置されるとともに、少なくとも一つ以上のフィルター面の上部に下方側に向けて噴射する散水設備8,9が配置され、前記第1空間4の底面が、空気中から捕集された粉塵汚泥の滞留部13となっているものである。   This cleaning device 1 removes dust such as tunnel dust and exhaust gas by using a combination of watering and a filter, and forms an air inlet 2a at the upper part of one end face of a substantially vertical casing body 2. In addition, an air discharge port 2b is formed at the upper part of the opposite end surface of the other side, a partition wall 3 having a lower portion as a flow path is provided inside the casing body 2, and is relatively large on the air inlet 2a side. By forming the first space 4 and the relatively small second space 5 on the air discharge port 2b side, the air flowing in from the air inlet 2a descends the first space 4 and the partition wall 3, a flow path is formed which passes through the lower end side flow path 3 and rises up the second space 5 to reach the air outlet 2 b, and is spaced apart in the middle stage portion 4 </ b> B of the first space 4 by 1 or in the vertical direction. When multiple stages of filters 6 and 7 are arranged In addition, sprinkling facilities 8 and 9 for spraying downwards are arranged on the upper part of at least one filter surface, and the bottom of the first space 4 is a stagnation part of dust sludge collected from the air. It is set to 13.

以下、更に具体的に詳述すると、
前記ケーシング体2は、図1に示されるように、鋼板によって製作され、全体的に略直方体形状を成す。ケーシング体2の一方側端面の上部に空気流入口2aを形成するとともに、対向する他方側端面の上部に空気排出口2bを形成する。ケーシング体2の内部は、前記空気排出口2b側に偏った位置に、下側部分を流路とする仕切り壁3を設け、前記空気流入口2a側に相対的に大きな第1空間4と、前記空気排出口2b側に相対的に小さな第2空間5とを形成するようにしている。
In more detail below,
As shown in FIG. 1, the casing body 2 is made of a steel plate and has a substantially rectangular parallelepiped shape as a whole. An air inflow port 2a is formed at the upper part of the one end face of the casing body 2, and an air discharge port 2b is formed at the upper part of the opposite end face. The inside of the casing body 2 is provided with a partition wall 3 having a lower portion as a flow path at a position biased toward the air discharge port 2b, and a relatively large first space 4 on the air inlet 2a side, A relatively small second space 5 is formed on the air discharge port 2b side.

従って、前記空気流入口2aから流入した空気が前記第1空間4を下降し、前記仕切り壁3の下端側流路を通過し、前記第2空間5を上昇して空気排出口2bに至る流路が形成されている。   Accordingly, the air flowing in from the air inlet 2a descends the first space 4, passes through the lower end side flow path of the partition wall 3, and rises the second space 5 to reach the air outlet 2b. A road is formed.

前記第1空間4は、機能別に、上段空間4A、中段空間4B、下段空間4Cとに区画されている。前記第1空間4の上段空間4Aは、汚染空気の導入空間となる空間であり、空間を上下に分割する第1分流壁12aと、この第1分流壁12aの後端部分から延長され、R曲面部を介して鉛直方向に流路変更を行う第2分流壁12bとによって分割流路12が形成されている。なお、図示例では、前記第1分流壁12aの先端板が上下方向に揺動式となっており、上部側、下部側の風量調整が可能となっているとともに、前記第2分流壁12bは中段空間4Bまで延長されている。   The first space 4 is divided into an upper space 4A, a middle space 4B, and a lower space 4C according to function. The upper space 4A of the first space 4 is a space serving as a contaminated air introduction space, and extends from a first flow dividing wall 12a that divides the space up and down, and a rear end portion of the first flow dividing wall 12a. The divided flow path 12 is formed by the second branch wall 12b that changes the flow path in the vertical direction via the curved surface portion. In the illustrated example, the tip plate of the first flow dividing wall 12a is swingable in the vertical direction, and the upper and lower airflow adjustments are possible, and the second flow dividing wall 12b is It extends to the middle space 4B.

前記第1空間4の中段空間4Bは、実際に汚染空気中に浮遊する粉塵や排気ガスを捕集し清浄化を図る空間部分であり、1又は上下方向に間隔を空けて複数段の、図示例では上下2段に亘ってフィルター6,7が配置されるとともに、少なくとも一つ以上のフィルター面の上部に、図示例では各フィルター6,7面の上部に下方側に向けて噴射する散水管8,9が配置されている。   The middle space 4B of the first space 4 is a space portion that collects dust and exhaust gas that actually floats in the contaminated air and purifies them, and is a one-stage or a plurality of stages at intervals in the vertical direction. In the illustrated example, the filters 6 and 7 are arranged in two upper and lower stages, and at the top of at least one or more filter surfaces, in the illustrated example, the water spray pipes sprayed downward on the upper surfaces of the respective filters 6 and 7. 8, 9 are arranged.

前記フィルター6,7としては、プラスチック繊維を立体網状に成形し、表面開口率が80〜95%であるフィルター材を用いるのが望ましい。このフィルター材は、商品名「ヘチマロン」[新光ナイロン株式会社製]として入手可能である。この商品は、所定太さのプラスチック繊維を加熱前のインスタントラーメン状に立体網目状とし、繊維同士の熱融着によって成形したもので、高い表面開口率、耐圧性能、排水性能を有することが特徴である。厚みは、複数層に重ね合わせることにより調整が可能であり、概ね50mm〜150mm、好ましくは70〜100mm程度とするのが望ましい。   As the filters 6 and 7, it is desirable to use a filter material in which plastic fibers are molded into a three-dimensional network and the surface opening ratio is 80 to 95%. This filter material is available under the trade name “Hetimaron” [manufactured by Shinko Nylon Co., Ltd.]. This product is made of plastic fiber of a predetermined thickness in the form of a three-dimensional network in the form of instant noodles before heating, and is formed by heat-sealing the fibers, and has a high surface opening ratio, pressure resistance, and drainage performance It is. The thickness can be adjusted by superimposing it on a plurality of layers, and is desirably about 50 mm to 150 mm, preferably about 70 to 100 mm.

前記フィルター6,7は、エキスパンドメタルやパンチングメタル等の多孔板19を固定し、この上面に載置するように設置される。   The filters 6 and 7 are installed so that a porous plate 19 such as expanded metal or punching metal is fixed and placed on the upper surface.

前記散水管8,9は、詳細には図2に示されるように、フィルター6の上方側に横3列に散水管8a〜8cが配置され、フィルター7の上方に1本の散水管9が配置されている。前記散水管8a〜8cの内、両側に配置された散水管8a、8cが除塵用散水管であり、上段中央の散水管8bと下段中央の散水管9とがフィルター洗浄用となっている。前記散水管8a、8cへの給水は、循環方式とされ、下面に溜まった粉塵汚泥の上澄水を散水ポンプ10により供給するようにし、前記散水管8b及び散水管9に対しては、散水管8a、8cよりも圧力の高い高圧水が必要となるため別途、設備された高圧ポンプ(図示せず)によって供給するようにしている。なお、前記散水管8a、8cからの噴射圧は概ね0.2〜0.3Mpa程度とするのが望ましい。   As shown in detail in FIG. 2, the water spray pipes 8 and 9 are arranged with three horizontal rows of water spray pipes 8 a to 8 c on the upper side of the filter 6, and one water spray pipe 9 is disposed above the filter 7. Has been placed. Of the sprinkling pipes 8a to 8c, the sprinkling pipes 8a and 8c arranged on both sides are dusting sprinkling pipes, and the upper central sprinkling pipe 8b and the lower central sprinkling pipe 9 are for filter cleaning. The water supply to the water spray pipes 8a and 8c is a circulation system, and the supernatant water of the dust sludge accumulated on the lower surface is supplied by the water spray pump 10, and the water spray pipes 8b and 9 are connected to the water spray pipes. Since high-pressure water having a pressure higher than those of 8a and 8c is required, it is supplied by a separately provided high-pressure pump (not shown). The injection pressure from the water spray pipes 8a and 8c is preferably about 0.2 to 0.3 MPa.

前記第1空間4の下段空間4Cは、底面部に空気中から捕集された粉塵汚泥の滞留部13が形成されるとともに、除塵された後の清浄空気の排出流路を形成する空間とされる。下段空間4Cから第2空間5に連通する開口部には、フィルター14が配置されているとともに、その前面側には洗浄のため前記フィルター14に向けて高圧水を噴射する散水管16が設けられている。前記滞留部13の端部には、溢流壁11によって上澄水のみが流入する貯水ピット15が設けられており、この貯水ピット15に配置された散水ポンプ10によって前記散水管8a、8cに水が供給されるようになっている。また、前記滞留部13に滞留した粉塵汚泥は、側壁に設けられた排水弁15から排出可能となっている。   The lower space 4 </ b> C of the first space 4 is a space in which a dust sludge retention part 13 collected from the air is formed on the bottom part and a discharge path for clean air after dust removal. The A filter 14 is disposed in an opening communicating with the second space 5 from the lower space 4C, and a water spray pipe 16 for injecting high-pressure water toward the filter 14 for cleaning is provided on the front side thereof. ing. A water storage pit 15 into which only the supernatant water flows is provided by the overflow wall 11 at the end of the retention portion 13, and water is supplied to the water spray pipes 8 a and 8 c by a water spray pump 10 disposed in the water storage pit 15. Is to be supplied. The dust sludge staying in the staying portion 13 can be discharged from the drain valve 15 provided on the side wall.

以上のように構成される清浄化装置においては、前記上段空間4Aに流入した汚染空気は、第1分流壁12aによって上下に夫々風量が分割され、第2分流壁12bによって図1の左側空間部分と右側空間部分とに分流される。ここでは、流路面積が一気に拡大されることにより、風速が減速され、中段空間4Bに導流される。中段空間4Bでは、散水管8a、8cからの散水によって、気流方向(下側方向)に向かって均一に噴射された水の噴射エネルギーによって気流が整流化されるとともに、前記フィルター6によって気流が整流化される。また、水滴によって粉塵や排気ガスが効果的に捕捉される。粉塵等を捉えた水滴は、噴射エネルギーによってフィルター面に叩き付けられ、ここで速度エネルギーを失った粉塵はフィルター6で混合され、その後、散水によって洗い流されるように落下する。また、散水によって捕集されなかった粉塵や排気ガス等は、フィルター6の立体網状空間を通過する過程で、繊維と接触し繊維表面に付着することによって捕捉される。   In the cleaning device configured as described above, the air volume of the contaminated air flowing into the upper space 4A is divided into upper and lower portions by the first branch wall 12a, and the left space portion of FIG. 1 is divided by the second branch wall 12b. And the right space part. Here, when the flow path area is expanded at a stretch, the wind speed is decelerated and guided to the middle space 4B. In the middle space 4B, the airflow is rectified by the spray energy of water uniformly sprayed in the airflow direction (downward direction) by watering from the water spray pipes 8a and 8c, and the airflow is rectified by the filter 6. It becomes. Also, dust and exhaust gas are effectively captured by the water droplets. The water droplets capturing the dust and the like are struck against the filter surface by the jetting energy, and the dust that has lost the velocity energy is mixed by the filter 6 and then dropped so as to be washed away by watering. In addition, dust, exhaust gas, and the like that have not been collected by watering are captured by contacting the fiber and adhering to the fiber surface in the process of passing through the three-dimensional network space of the filter 6.

前記上段側フィルター6と下段側フィルター7との間の空間は、気流の整流化空間及び減速空間となっており、フィルター6を通過した段階で、気流は更に整流化が図られるとともに、大幅に風速が減速されることになる。そして、下段側のフィルター7を通過する際に、二次的に粉塵や排気ガス等が捕捉され、下段空間4Cに至ると、この空間を流路として第2空間5側に空気が導流される。その後、第2空間5との境界部分に設置されたフィルター14によって、更に三次的に粉塵や排気ガス等が捕捉された後、第2空間5に流入する。   The space between the upper-stage filter 6 and the lower-stage filter 7 is a rectification space and a deceleration space for the airflow. When the airflow passes through the filter 6, the airflow is further rectified and greatly increased. The wind speed will be decelerated. Then, when passing through the lower filter 7, dust and exhaust gas are secondarily captured, and when reaching the lower space 4 </ b> C, air is guided to the second space 5 side using this space as a flow path. The Thereafter, dust, exhaust gas, and the like are further captured by the filter 14 installed at the boundary portion with the second space 5 and then flow into the second space 5.

前記第2空間5は、清浄化された空気の上昇排出流路となるもので、上部に形成された空気排出口2bから除塵された空気が排出される。この際、空気排出口2bの下端側から空間内に斜め上方に向けて配置されたフィルター17、及び空気排出口2bの全面に設けられたフィルター18によって、流路が迂回状に変更され、気流に乗った水が直接的に外部に噴き出すのを防止するようになっている。
前述した清浄化装置1は、図5に示されるように、トンネルの工事中に、坑外に固定的に設置され、トンネル内に設けられた換気用風管20の坑外側端部を前記空気流入口2aに接続し、換気風量の全量に対して清浄化を図るようにするのが望ましい。なお、図5では、局所ファン21を用いた送排気併用方式の例を示した。
The second space 5 serves as an ascending / discharging flow path for the purified air, and dust-removed air is discharged from an air discharge port 2b formed in the upper portion. At this time, the flow path is changed to a detour shape by the filter 17 disposed obliquely upward in the space from the lower end side of the air discharge port 2b and the filter 18 provided on the entire surface of the air discharge port 2b. It is designed to prevent the water on the water from directly spraying outside.
As shown in FIG. 5, the cleaning device 1 described above is fixedly installed outside the tunnel during the tunnel construction, and the outside end portion of the ventilation wind pipe 20 provided in the tunnel is connected to the air. It is desirable to connect to the inflow port 2a and to clean the entire ventilation air volume. In addition, in FIG. 5, the example of the sending / exhaust combined system using the local fan 21 was shown.

〔他の形態例〕
(1)上記形態例では、上下段で配置したフィルター6,7の内、上段側フィルター6の上方側にのみ除塵用散水管8a、8cを設置するようにしたが、下段側フィルター7の上部側にも除塵用散水管を配置し、2段構成で散水除塵を行うようにしてもよい。
(2)上記形態例では、清浄装置1をトンネル坑外に設置し、換気風量の全量に対して清浄化を図るようにしたが、本清浄装置1をトンネル坑内に設置し、トンネル内の空気の清浄化装置として用いてもよい。
(3)上記清浄装置1は、複数に分割可能としトラックで輸送可能とすれば、他のトンネル工事に転用が可能である。
(4)上記形態例では、フィルター洗浄用の散水管8b、9を設けるようにしたが、除塵用散水管からの散水圧を可変とすることにより、洗浄用散水管は省略が可能である。
[Other examples]
(1) In the above embodiment, the dust-sprinkling water pipes 8a and 8c are installed only on the upper side of the upper filter 6 among the filters 6 and 7 arranged in the upper and lower stages, but the upper part of the lower filter 7 A dust removal water sprinkling pipe may also be arranged on the side to perform water spray dust removal in a two-stage configuration.
(2) In the above embodiment, the cleaning device 1 is installed outside the tunnel mine and the entire ventilation air volume is cleaned. However, the cleaning device 1 is installed in the tunnel mine and the air in the tunnel is It may be used as a cleaning device.
(3) The cleaning device 1 can be diverted to other tunnel construction if it can be divided into a plurality of parts and transported by truck.
(4) In the above embodiment, the filter cleaning water pipes 8b and 9 are provided. However, by making the water spray pressure from the dust removal water pipe variable, the cleaning water pipe can be omitted.

本発明に係る清浄装置1の縦断面図である。It is a longitudinal section of cleaning device 1 concerning the present invention. 図1のII−II線矢視図である。It is the II-II arrow directional view of FIG. 清浄装置1の平面図である。2 is a plan view of the cleaning device 1. FIG. 清浄装置1の散水配管図である。It is a watering piping figure of cleaning device 1. 清浄装置1の使用状態を示すトンネル縦断面図である。FIG. 3 is a tunnel longitudinal sectional view showing a use state of the cleaning device 1.

符号の説明Explanation of symbols

1…清浄装置、2…ケーシング体、3…仕切り壁、4…第1空間、4A…上段空間、4B…中段空間、4C…下段空間、5…第2空間、6・7・14・17・18…フィルター、8・9…散水管、10…散水ポンプ、12…分割流路、13…滞留部   DESCRIPTION OF SYMBOLS 1 ... Cleaning apparatus, 2 ... Casing body, 3 ... Partition wall, 4 ... 1st space, 4A ... Upper stage space, 4B ... Middle stage space, 4C ... Lower stage space, 5 ... 2nd space, 6 * 7 * 14 * 17 * 18 ... Filter, 8.9 ... Sprinkling pipe, 10 ... Sprinkling pump, 12 ... Divided flow path, 13 ... Retention part

Claims (5)

  1. 散水とフィルターとの併用によって除塵を行うトンネル粉塵・排気ガス等のための清浄装置において、
    略立直体状のケーシング体の一方側端面の上部に空気流入口を形成するとともに、対向する他方側端面の上部に空気排出口を形成し、前記ケーシング体の内部に下側部分を流路とする仕切り壁を設け、前記空気流入口側に相対的に大きな第1空間と、前記空気排出口側に相対的に小さな第2空間とを形成することにより、前記空気流入口から流入した空気が前記第1空間を下降し、前記仕切り壁の下端側流路を通過し、前記第2空間を上昇して空気排出口に至る流路が形成され、
    前記第1空間の中段部分に、1又は上下方向に間隔を空けて複数段のフィルターが配置されるとともに、少なくとも一つ以上のフィルター面の上部に下方側に向けて噴射する散水設備が配置され、
    前記第1空間の底面が、空気中から捕集された粉塵汚泥の滞留部となっていることを特徴とするトンネル粉塵・排気ガス等の清浄装置。
    In a cleaning device for tunnel dust, exhaust gas, etc. that removes dust by using a combination of watering and a filter,
    An air inflow port is formed at the upper part of the one end face of the substantially upright casing body, and an air discharge port is formed at the upper part of the opposite other end face, and the lower part is formed as a flow path inside the casing body. The partition wall is provided, and a relatively large first space is formed on the air inlet side and a relatively small second space is formed on the air outlet side. A flow path is formed that descends the first space, passes through the lower-end-side flow path of the partition wall, rises the second space, and reaches the air outlet.
    A plurality of stages of filters are arranged in the middle part of the first space at intervals of 1 or up and down, and watering equipment for injecting downwards is arranged above at least one filter surface. ,
    A cleaning device for tunnel dust, exhaust gas, etc., characterized in that the bottom surface of the first space is a retention part for dust sludge collected from the air.
  2. 前記第1空間の上段部分に、空間を上下に分割する第1分流壁と、この第1分流壁の後端部分から延長され、R曲面部を介して鉛直方向に流路変更を行う第2分流壁とによって分割流路が形成されている請求項1記載のトンネル粉塵・排気ガス等の清浄装置。   A first branch wall that divides the space vertically into the upper stage portion of the first space, and a second flow path that extends from the rear end portion of the first branch wall and changes the flow path in the vertical direction via the R curved surface portion. The cleaning device for tunnel dust, exhaust gas, etc. according to claim 1, wherein a divided flow path is formed by the flow dividing wall.
  3. 前記フィルターは、プラスチック繊維を立体網状に成形し、表面開口率が80〜95%であるフィルター材を用いている請求項1,2いずれかに記載のトンネル粉塵・排気ガス等の清浄装置。   The said filter uses the filter material which shape | molds a plastic fiber in the shape of a three-dimensional net | network, and the surface opening rate is 80 to 95%, The cleaning apparatus of tunnel dust, exhaust gas, etc. in any one of Claims 1 and 2.
  4. 前記粉塵汚泥の滞留部の上澄水を前記散水設備に供給する散水ポンプを配設してある請求項1〜3いずれかに記載のトンネル粉塵・排気ガス等の清浄装置。   A cleaning device for tunnel dust, exhaust gas or the like according to any one of claims 1 to 3, further comprising a watering pump that supplies the supernatant water of the dust sludge retention portion to the watering equipment.
  5. 工事中のトンネル坑外に請求項1〜4いずれかに記載のトンネル粉塵・排気ガス等の清浄装置を設置し、トンネル内に設けられた換気用風管の坑外側端部を前記空気流入口に接続してあることを特徴とするトンネル粉塵・排気ガス等の清浄装置。   The tunnel dust / exhaust gas cleaning device according to any one of claims 1 to 4 is installed outside the tunnel mine under construction, and the outside end of the ventilation wind pipe provided in the tunnel is connected to the air inlet A cleaning device for tunnel dust, exhaust gas, etc.
JP2007071718A 2007-03-20 2007-03-20 Cleaning equipment for tunnel dust, exhaust gas, etc. Active JP4722070B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010190493A (en) * 2009-02-18 2010-09-02 Panahome Corp Residential ventilation structure
CN102777203A (en) * 2012-07-24 2012-11-14 淮南矿业(集团)有限责任公司 Roadway spraying device
CN104121646A (en) * 2014-07-01 2014-10-29 李志军 Filtering fresh air system
WO2015198264A1 (en) * 2014-06-25 2015-12-30 Giorgio Micheletti System for filtering the fresh air flowing in a tunnel and/or the exhaust gases flowing out therefrom
CN108005711A (en) * 2017-12-09 2018-05-08 胡楠 A kind of underworkings atomizing de-dusting apparatus
US10744452B2 (en) 2015-01-23 2020-08-18 Beijing Boyuan Hengsheng High-Technology Co., Ltd. Method for waste gas dedusting and dedusting agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742183B (en) * 2014-01-23 2015-10-28 大同煤矿集团衡安装备股份有限公司 Mining dust suppression air door

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835303Y2 (en) * 1981-03-28 1983-08-09
JPH0842300A (en) * 1994-07-27 1996-02-13 Fujita Corp Dust elimination treatment method and dust elimination treatment device in tunnel work
JP2005314972A (en) * 2004-04-28 2005-11-10 Sakamoto Shokai:Kk Air cleaning device in tunnel and air ventilating method in the tunnel
JP2006336281A (en) * 2005-06-01 2006-12-14 Kurimoto Ltd Rectifier with sound absorbing function, for ventilation of highway tunnel, and rectifying unit with sound absorbing function for use therein

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835303Y2 (en) * 1981-03-28 1983-08-09
JPH0842300A (en) * 1994-07-27 1996-02-13 Fujita Corp Dust elimination treatment method and dust elimination treatment device in tunnel work
JP2005314972A (en) * 2004-04-28 2005-11-10 Sakamoto Shokai:Kk Air cleaning device in tunnel and air ventilating method in the tunnel
JP2006336281A (en) * 2005-06-01 2006-12-14 Kurimoto Ltd Rectifier with sound absorbing function, for ventilation of highway tunnel, and rectifying unit with sound absorbing function for use therein

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010190493A (en) * 2009-02-18 2010-09-02 Panahome Corp Residential ventilation structure
CN102777203A (en) * 2012-07-24 2012-11-14 淮南矿业(集团)有限责任公司 Roadway spraying device
WO2015198264A1 (en) * 2014-06-25 2015-12-30 Giorgio Micheletti System for filtering the fresh air flowing in a tunnel and/or the exhaust gases flowing out therefrom
US20170159435A1 (en) * 2014-06-25 2017-06-08 Giorgio Micheletti System for Filtering the Fresh Air Flowing in a Tunnel and/or the Exhaust Gases Flowing out Therefrom
CN104121646A (en) * 2014-07-01 2014-10-29 李志军 Filtering fresh air system
US10744452B2 (en) 2015-01-23 2020-08-18 Beijing Boyuan Hengsheng High-Technology Co., Ltd. Method for waste gas dedusting and dedusting agent
CN108005711A (en) * 2017-12-09 2018-05-08 胡楠 A kind of underworkings atomizing de-dusting apparatus

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