JP2843976B2 - Underground drainage device - Google Patents
Underground drainage deviceInfo
- Publication number
- JP2843976B2 JP2843976B2 JP23750695A JP23750695A JP2843976B2 JP 2843976 B2 JP2843976 B2 JP 2843976B2 JP 23750695 A JP23750695 A JP 23750695A JP 23750695 A JP23750695 A JP 23750695A JP 2843976 B2 JP2843976 B2 JP 2843976B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- spring water
- vacuum suction
- suction
- discharge device
- 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
Landscapes
- Jet Pumps And Other Pumps (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えばトンネル等
の坑で用いられ、坑内で発生した土砂混じりの湧水を坑
外に排出する坑内排水装置の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an underground drainage device used in, for example, a tunnel such as a tunnel, for discharging spring water mixed with earth and sand generated in the tunnel to the outside of the tunnel.
【０００２】[0002]
【従来の技術】従来、この種の坑内排水装置としては、
例えば図１０乃至図１２に示すものが知られている。当
該坑内排水装置５０は、基本的には、坑内の下位に設け
られて湧水Ａを吸引して排出する真空吸引排出装置５１
と、真空吸引排出装置５１の近傍に設けられてこれから
の湧水Ａを貯溜するピット５２と、ピット５２の湧水Ａ
を坑外へ揚水するポンプ５３と、から構成されている。
真空吸引排出装置５１は、真空ポンプユニット５４と排
出ユニット５５とから成っている。真空ポンプユニット
５４は、排出ユニット５５のセパレートタンク６２内を
低圧にする為の真空ポンプ（水封式真空ポンプ）５６
と、水中ポンプ５７を備えて真空ポンプ５６の封水や排
出ユニット５５側への清水供給に使用される補給水タン
ク５８と、真空ポンプ５６の排気を気体と封水に分離し
て気体のみを排出する排気分離装置５９等から成ってい
る。排出ユニット５５は、吸引された土砂混じりの湧水
Ａをスクリーン６０に依り大きな固形物とスラリーに分
離して固形物を扉６１から手動又は自動的に排出し得る
セパレートタンク６２と、水中ポンプ６３を備えてセパ
レートタンク６２で分離できなかった固液の粒子を分離
する一次及び二次のサイクロン６４と、セパレートタン
ク６２とサイクロン６４で捕集できなかった例えば発泡
スチロール片等を捕集して真空ポンプ５６のトラブルを
防止するフィルタタンク６５と、セパレートタンク６２
で分離されたスラリーを排出するサンドポンプ６６等か
ら成っている。而して、真空吸引排出装置５１の真空ポ
ンプユニット５４は坑外に設置され（坑内に設置される
場合もある）、真空吸引排出装置５１の排出ユニット５
５は立坑下に設置され（扉６１からの固形物を回収する
回収タンクを使用する場合もある）、排出ユニット５５
の排出先は立坑下に設置されたピット５２にされ、ピッ
ト５２の排水に用いられるポンプ（連続渇水運転が多
い）５３は水中ポンプにされ、ピット５２に溜まった土
砂は定期的に除去される。2. Description of the Related Art Conventionally, as this kind of underground drainage device,
For example, those shown in FIGS. 10 to 12 are known. The underground drainage device 50 is basically a vacuum suction and discharge device 51 that is provided below the mine and sucks and discharges the spring water A.
A pit 52 provided in the vicinity of the vacuum suction / discharge device 51 for storing spring water A from now on;
And a pump 53 for pumping water to the outside of the mine.
The vacuum suction / discharge device 51 includes a vacuum pump unit 54 and a discharge unit 55. The vacuum pump unit 54 is a vacuum pump (water ring vacuum pump) 56 for reducing the pressure inside the separate tank 62 of the discharge unit 55.
And a make-up water tank 58 provided with a submersible pump 57 and used for sealing the vacuum pump 56 and supplying fresh water to the discharge unit 55 side, and separating the exhaust gas of the vacuum pump 56 into gas and sealed water to separate only gas. It is composed of an exhaust gas separation device 59 for discharging. The discharging unit 55 separates the sucked spring water A mixed with earth and sand into large solids and slurry by a screen 60 and can manually or automatically discharge the solids from the door 61, and a submersible pump 63. A primary and secondary cyclone 64 for separating solid-liquid particles that could not be separated in the separate tank 62 and a vacuum pump for collecting, for example, styrene foam pieces that could not be collected in the separate tank 62 and the cyclone 64 A filter tank 65 for preventing trouble 56 and a separate tank 62
And a sand pump 66 for discharging the slurry separated in step (1). Thus, the vacuum pump unit 54 of the vacuum suction / discharge device 51 is installed outside the mine (it may be installed inside the mine), and the discharge unit 5 of the vacuum suction / discharge device 51 is provided.
5 is installed under a shaft (a collection tank for collecting solids from the door 61 may be used), and a discharge unit 55 is provided.
Is drained to a pit 52 installed under a shaft, a pump 53 used for draining the pit 52 (many continuous drought operation) is an underwater pump, and the sediment accumulated in the pit 52 is periodically removed. .
【０００３】[0003]
【発明が解決しようとする課題】ところが、近年、シー
ルド工法に依るトンネル工事等に於ては、坑の深さが益
々深くなり、掘削長さも長くなって来ている。この為、
真空吸引排出装置の使用中の真空度も高くなって限界に
来て居り、横坑の切羽で発生した湧水をピットに排出
（所謂横引き）するのが精一杯という状態になって来て
いる。又、ピットの排水も立坑が深くなっているので、
高揚程のポンプでなければ揚水できなくなって来てい
る。とりわけ、湧水量が多ければ、ポンプの連続運転が
可能となり、配管内の土砂詰まりも無く使用できるもの
の、工事方法の進歩に依り湧水量が減少して来て居り、
湧水量がポンプの能力に比べて少ない場合には、間欠運
転となり、配管内の土砂詰まりやポンプの磨耗の増大等
のトラブルが発生して問題であった。However, in recent years, in tunnel construction and the like using the shield method, the depth of a pit has been becoming deeper and the excavation length has become longer. Because of this,
The degree of vacuum during use of the vacuum suction and discharge device has also increased and is reaching its limit, and it is becoming possible to discharge spring water generated at the face of the horizontal shaft into the pit (so-called horizontal pulling) as much as possible. I have. Also, the drainage of the pit is deep in the shaft,
It is becoming impossible to pump water unless the pump has a high head. In particular, if the amount of spring water is large, continuous operation of the pump becomes possible, and it can be used without clogging of sediment in the piping, but the amount of spring water is decreasing due to the progress of construction methods,
When the amount of spring water is smaller than the capacity of the pump, the operation is intermittent, and problems such as clogging of sediment in the pipe and increase in wear of the pump occur.
【０００４】本発明は、叙上の問題点に鑑み、これを解
消する為に創案されたもので、その目的とする処は、坑
が深く且つ長くなっても坑内で発生した土砂混じりの湧
水を坑外に良好に排出する事ができる坑内排水装置を提
供するにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in order to solve the above problem. An object of the present invention is to provide an underground drainage device capable of discharging water well outside the mine.
【０００５】[0005]
【課題を解決するための手段】本発明の請求項１記載の
坑内排水装置は、坑内の下位に設けられて湧水を吸引し
て排出する真空吸引排出装置と、真空吸引排出装置の近
傍に設けられてこれからの湧水を圧縮空気に依り加圧す
るエアエゼクタと、から構成した事に特徴が存する。本
発明の請求項２記載の坑内排水装置は、坑内の上位又は
坑外に設けられて湧水を吸引して排出する真空吸引排出
装置と、坑内の下位に設けられて真空吸引排出装置への
湧水を圧縮空気に依り加圧するエアエゼクタと、から構
成した事に特徴が存する。An underground drainage device according to claim 1 of the present invention has a vacuum suction and discharge device provided at a lower part of a mine for sucking and discharging spring water, and a vacuum suction and discharge device in the vicinity of the vacuum suction and discharge device. The present invention is characterized in that it is provided with an air ejector that is provided and pressurizes spring water in the future with compressed air. The underground drainage device according to claim 2 of the present invention includes a vacuum suction / discharge device provided at the upper level or outside of the pit to suck and discharge spring water, and a vacuum suction / discharge device provided at the lower level in the pit. The feature is that it consists of an air ejector that pressurizes spring water with compressed air.
【０００６】本発明の請求項１記載の坑内排水装置は、
坑内の下位に設けられた真空吸引排出装置に依り坑内の
湧水が吸引される。真空吸引排出装置からの湧水は、エ
アエゼクタに依り加圧されて坑外へ排出される。本発明
の請求項２記載の坑内排水装置は、坑内の上位又は坑外
に設けられた真空吸引排出装置に依り坑内の湧水が吸引
される。真空吸引排出装置に依り吸引される湧水は、エ
アエゼクタに依り加圧されて真空吸引排出装置に送ら
れ、真空吸引排出装置に依り坑外に排出される。[0006] The underground drainage device according to claim 1 of the present invention comprises:
Spring water in the mine is sucked by a vacuum suction / discharge device provided below the mine. The spring water from the vacuum suction / discharge device is pressurized by an air ejector and discharged to the outside of the mine. In the underground drainage device according to the second aspect of the present invention, spring water in the mine is sucked by a vacuum suction / discharge device provided above or outside the mine. The spring water sucked by the vacuum suction and discharge device is pressurized by the air ejector, sent to the vacuum suction and discharge device, and discharged to the outside of the mine by the vacuum suction and discharge device.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態を、図
面に基づいて説明する。図１は、本発明の第一例の坑内
排水装置を示す概要図。図２は、エアエゼクタの構造を
示す縦断面図である。当該坑内排水装置１は、請求項１
記載の発明に係るものであり、真空吸引排出装置２とエ
アエゼクタ３とからその主要部が構成され、トンネル等
の坑に適用される。坑内排水装置１は、具体的には、坑
内の下位に設けられて湧水Ａを吸引して排出する真空吸
引排出装置２と、真空吸引排出装置２からの湧水Ａを貯
溜するピット４と、ピット４の湧水Ａを揚水するポンプ
５と、ポンプ５の近傍に設けられてこれからの湧水Ａを
圧縮空気Ｂに依り加圧するエアエゼクタ３と、坑外に設
けられてエアエゼクタ３からの圧縮空気Ｂを分離して湧
水Ａを貯溜するホッパ６と、から構成されている。真空
吸引排出装置２は、従来と同様に真空ポンプユニット５
４と排出ユニット５５とから成って居り、この例では、
これらを集合させて設置してある。勿論、真空ポンプユ
ニット５４を坑外に設置すると共に、排出ユニット５５
を坑内に設置しても良い。真空吸引排出装置２は、吸引
側には横坑の切羽（図示せず）まで延びてここで発生し
た湧水Ａを吸引し得る吸引管７が接続されていると共
に、排出側にはピット４に湧水Ａを放出する排出管８が
接続されている。ピット４は、上方が開放した容器状を
呈し、横坑より掘り下げた立坑の底部に設置されてい
る。ポンプ５は、水中ポンプ（サンドポンプ）にしてあ
り、吸込側が水没すべくピット４内に没入してあると共
に、吐出側には坑外まで延びて湧水Ａをホッパ６に放出
する吐出管９が接続されている。エアエゼクタ３は、吐
出管９の途中に介設され、湧水Ａを一方向に通流させる
二分割された管状の本体１０と、これらの間に介設され
て通流する湧水Ａの外周から通流方向に沿う内方に圧縮
空気Ｂが噴射されてこれを加圧する環状のノズル１１と
から成っている。ノズル１１には、空気管１２を介して
坑外に設置されたコンプレッサ等の圧縮空気源１３が接
続されている。圧縮空気Ｂは、７ｋｇ／ｃｍ2 、１．５
ｍ3 ／ｍｉｎにしてある。ホッパ６は、上方が開放した
容器状を呈し、立坑近傍の坑外に設置され、圧縮空気Ｂ
に依り湧水Ａが飛び散る為に比較的大きなものにしてあ
る。トンネル等の坑は、地表から垂直に延びる立坑と、
これの下位から水平に延びる横坑とから成っている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing a first example of an underground drainage device of the present invention. FIG. 2 is a longitudinal sectional view showing the structure of the air ejector. The underground drainage device 1 is described in claim 1
According to the invention described above, the main part thereof is constituted by a vacuum suction / discharge device 2 and an air ejector 3, and is applied to a tunnel such as a tunnel. The underground drainage device 1 includes, specifically, a vacuum suction and discharge device 2 that is provided below the mine and suctions and discharges the spring water A, and a pit 4 that stores the spring water A from the vacuum suction and discharge device 2. A pump 5 for pumping the spring water A of the pit 4, an air ejector 3 provided near the pump 5 to pressurize the spring water A from now on with the compressed air B, and a compressor provided from the air ejector 3 provided outside the pit. A hopper 6 for separating the air B and storing the spring water A. The vacuum suction and discharge device 2 is provided with a vacuum pump unit 5 as in the prior art.
4 and a discharge unit 55. In this example,
These are assembled and installed. Of course, the vacuum pump unit 54 is installed outside the mine, and the discharge unit 55
May be installed in the mine. The vacuum suction and discharge device 2 is connected to a suction pipe 7 extending to a face of a horizontal shaft (not shown) on the suction side and capable of sucking spring water A generated here, and a pit 4 on the discharge side. Is connected to a discharge pipe 8 for discharging spring water A. The pit 4 has a container shape with an open top, and is installed at the bottom of a vertical shaft dug down from a horizontal shaft. The pump 5 is a submersible pump (sand pump), the suction side of which is immersed in the pit 4 so as to be submerged, and the discharge side of which is extended to the outside of the pit to discharge spring water A to the hopper 6 on the discharge side. Is connected. The air ejector 3 is provided in the middle of the discharge pipe 9 and is divided into two tubular main bodies 10 through which the spring water A flows in one direction. , And an annular nozzle 11 for injecting compressed air B inward along the flow direction and pressurizing the compressed air B. A compressed air source 13 such as a compressor installed outside the mine is connected to the nozzle 11 via an air pipe 12. Compressed air B is 7 kg / cm 2 , 1.5
m 3 / min. The hopper 6 has a container shape with an open upper part, is installed outside a shaft near a shaft, and has a compressed air B
Is relatively large because spring water A scatters. Tunnels such as tunnels include vertical shafts extending vertically from the surface of the ground,
And a horizontal shaft extending horizontally from below.
【０００８】横坑の切羽で発生した土砂混じりの湧水Ａ
は、真空吸引排出装置２に依り吸引管７を経て吸引され
て排出管８を経てピット４に排出される。ピット４に排
出された湧水Ａは、ポンプ５の吸込側から吸込まれて吐
出管９を経てエアエゼクタ３に送られる。エアエゼクタ
３に送られた湧水Ａは、圧縮空気源１３からの圧縮空気
Ｂに依り加圧されて吐出管９を経てホッパ６に揚水され
る。吐出管９を経た湧水Ａは、圧縮空気Ｂが分離されて
大気中に放出された後、ホッパ６に貯溜される。この様
なものは、ポンプ５の吐出側近傍にエアエゼクタ３を設
けたので、ポンプ５の性能（揚程）を直接坑外に揚水で
きるのものにしなくても良い。[0008] Spring water A mixed with earth and sand generated at the face of the horizontal shaft
Is sucked through the suction pipe 7 by the vacuum suction and discharge device 2 and discharged to the pit 4 through the discharge pipe 8. The spring water A discharged into the pit 4 is sucked from the suction side of the pump 5 and sent to the air ejector 3 via the discharge pipe 9. The spring water A sent to the air ejector 3 is pressurized by the compressed air B from the compressed air source 13 and is pumped to the hopper 6 through the discharge pipe 9. The spring water A that has passed through the discharge pipe 9 is stored in the hopper 6 after the compressed air B is separated and released into the atmosphere. In such a device, since the air ejector 3 is provided near the discharge side of the pump 5, the performance (head) of the pump 5 does not need to be such that the pump 5 can directly pump water outside the mine.
【０００９】図３は、本発明の第二例の坑内排水装置を
示す概要図である。当該坑内排水装置１は、請求項１記
載の発明に係るものであり、坑内の下位に設けられて湧
水Ａを吸引して排出する真空吸引排出装置２と、坑外に
設けられて真空吸引排出装置２からの湧水Ａを貯溜する
ホッパ６と、真空吸引排出装置２の排出側近傍に設けら
れてこれからの湧水Ａを圧縮空気Ｂに依り加圧するエア
エゼクタ３と、から構成されている。つまり、本例は、
第一例のピット４とポンプ５と吐出管９とを省略し、真
空吸引排出装置２の排出管８をホッパ６まで延ばし、こ
の途中にエアエゼクタ３を介設したものである。FIG. 3 is a schematic diagram showing an underground drainage device according to a second embodiment of the present invention. The underground drainage device 1 according to the first aspect of the present invention is a vacuum suction / discharge device 2 provided at a lower part of the mine to suction and discharge spring water A, and a vacuum suction / discharge device provided outside the mine. A hopper 6 for storing the spring water A from the discharge device 2 and an air ejector 3 provided near the discharge side of the vacuum suction and discharge device 2 and pressurizing the spring water A from here with the compressed air B are constituted. . In other words, this example
The pit 4, the pump 5, and the discharge pipe 9 of the first example are omitted, the discharge pipe 8 of the vacuum suction and discharge device 2 is extended to the hopper 6, and the air ejector 3 is provided in the middle of this.
【００１０】横坑の切羽で発生した土砂混じりの湧水Ａ
は、真空吸引排出装置２に依り吸引管７を経て吸引され
て排出管８を経てエアエゼクタ３に送られる。エアエゼ
クタ３に送られた湧水Ａは、圧縮空気源１３からの圧縮
空気Ｂに依り加圧されて排出管８を経てホッパ６まで揚
水される。排出管８を経た湧水Ａは、圧縮空気Ｂが分離
されて大気中に放出された後、ホッパ６に貯溜される。
この様なものは、ピット４とポンプ５と吐出管９とを省
略したので、それだけ構造を簡単化できると共に、真空
吸引排出装置２からの湧水Ａをそのままホッパ６に揚水
できる。[0010] Spring water A mixed with earth and sand generated at the face of the horizontal shaft
Is sucked through the suction pipe 7 by the vacuum suction and discharge device 2 and sent to the air ejector 3 through the discharge pipe 8. The spring water A sent to the air ejector 3 is pressurized by the compressed air B from the compressed air source 13 and is pumped to the hopper 6 through the discharge pipe 8. The spring water A that has passed through the discharge pipe 8 is stored in the hopper 6 after the compressed air B is separated and released into the atmosphere.
In such a device, the pit 4, the pump 5, and the discharge pipe 9 are omitted, so that the structure can be simplified accordingly, and the spring water A from the vacuum suction / discharge device 2 can be directly pumped to the hopper 6.
【００１１】図４は、本発明の第三例の坑内排水装置を
示す概要図である。当該坑内排水装置１は、請求項１記
載の発明に係るものであり、ホッパ６を、エアエゼクタ
３からの圧縮空気Ｂを伴う湧水Ａを気液分離するサイク
ロン１４を備えたものにした点が、第一例及び第二例と
異なる。この様なものは、サイクロン１４を備えている
ので、ホッパ６をコンパクトにでき、ホッパ６の湧水Ａ
を処理する排水処理装置（図示せず）の上にでも設置す
る事ができる。FIG. 4 is a schematic diagram showing an underground drainage device according to a third embodiment of the present invention. The underground drainage device 1 is the one according to the first aspect of the present invention, in which the hopper 6 is provided with a cyclone 14 for separating the spring water A with the compressed air B from the air ejector 3 into gas and liquid. , Different from the first and second examples. Such a device is provided with the cyclone 14, so that the hopper 6 can be made compact, and the spring water A
It can also be installed on a wastewater treatment device (not shown) that treats water.
【００１２】図５は、本発明の第四例の坑内排水装置を
示す概要図である。当該坑内排水装置１は、請求項２記
載の発明に係るものであり、坑外に設けられて湧水Ａを
吸引して排出する真空吸引排出装置２と、坑内の下位に
設けられて湧水Ａを貯溜するピット４と、真空吸引排出
装置２の吸引側に設けられてピット４の湧水Ａを揚水す
るポンプ５と、ポンプ５の吐出側近傍に設けられてこれ
からの湧水Ａを圧縮空気Ｂに依り加圧するエアエゼクタ
３と、から構成されている。真空吸引排出装置２は、吸
引管７と排出管８を備え、吸引管７がピット４まで延び
ている。ピット４は、横坑より下位の立坑の底部に形成
され、この付近で発生した湧水Ａが貯溜される。ポンプ
５は、水中ポンプ（サンドポンプ）にしてあり、吸込側
が水没すべくピット４内に没入してあると共に、吐出側
が吸引管７の先端に接続されている。エアエゼクタ３
は、吸引管７の途中に介設されている。FIG. 5 is a schematic view showing an underground drainage device according to a fourth embodiment of the present invention. The underground drainage device 1 according to the second aspect of the present invention is provided with a vacuum suction and discharge device 2 provided outside the mine to suction and discharge the spring water A, and a spring suction and discharge device provided below the mine. A pit 4 for storing A, a pump 5 provided on the suction side of the vacuum suction / discharge device 2 for pumping the spring water A of the pit 4, and a pump A provided near the discharge side of the pump 5 to compress the spring water A And an air ejector 3 pressurized by air B. The vacuum suction / discharge device 2 includes a suction pipe 7 and a discharge pipe 8, and the suction pipe 7 extends to the pit 4. The pit 4 is formed at the bottom of the shaft below the horizontal shaft, and the spring water A generated in the vicinity thereof is stored. The pump 5 is a submersible pump (sand pump). The suction side is immersed in the pit 4 so as to be submerged, and the discharge side is connected to the tip of the suction pipe 7. Air ejector 3
Is provided in the middle of the suction pipe 7.
【００１３】ピット４に貯溜された湧水Ａは、ポンプ５
の吸込側から吸込まれて吸引管７を経てエアエゼクタ３
に送られる。エアエゼクタ３に送られた湧水Ａは、圧縮
空気源１３からの圧縮空気Ｂに依り加圧されて吸引管７
を経て真空吸引排出装置２に揚水される。真空吸引排出
装置２に揚水された湧水Ａは、その真空ポンプユニット
５４に依り圧縮空気Ｂが分離されて大気中に放出された
後、排出管８を経て排水処理装置等（図示せず）に送ら
れる。この様なものは、ポンプ５の吐出側近傍にエアエ
ゼクタ３を設けたので、ポンプ５の性能（揚程）を直接
坑外に揚水できるのものにしなくても良い。The spring water A stored in the pit 4 is supplied to a pump 5
The air ejector 3 is sucked from the suction side of the
Sent to The spring water A sent to the air ejector 3 is pressurized by compressed air B from a compressed air source 13 and
Through the vacuum suction / discharge device 2 The spring water A pumped by the vacuum suction / discharge device 2 is separated into compressed air B by the vacuum pump unit 54 and discharged into the atmosphere, and then discharged through a discharge pipe 8 to a drainage treatment device or the like (not shown). Sent to In such a device, since the air ejector 3 is provided near the discharge side of the pump 5, the performance (head) of the pump 5 does not need to be such that the pump 5 can directly pump water outside the mine.
【００１４】図６は、本発明の第五例の坑内排水装置を
示す概要図である。当該坑内排水装置１は、請求項２記
載の発明に係るものであり、坑外に設けられて湧水Ａを
吸引して排出する真空吸引排出装置２と、真空吸引排出
装置２の吸引側で坑内の下位に設けられた開閉弁１５
と、開閉弁１５の下流側近傍に設けられてこれ以降の湧
水Ａを圧縮空気Ｂに依り加圧するエアエゼクタ３と、か
ら構成されている。真空吸引排出装置２は、吸引管７と
排出管８を備え、吸引管７が横坑の切羽まで延びてい
る。開閉弁１５は、モータバルブにしてあり、吸引管７
の途中に介設してある。エアエゼクタ３は、吸引管７の
途中に介設してある。FIG. 6 is a schematic view showing an underground drainage device according to a fifth embodiment of the present invention. The underground drainage device 1 according to the second aspect of the present invention is provided with a vacuum suction / discharge device 2 provided outside the mine to suction and discharge the spring water A, and a suction side of the vacuum suction / discharge device 2. On-off valve 15 provided below the mine
And an air ejector 3 provided in the vicinity of the downstream side of the on-off valve 15 and pressurizing the subsequent spring water A with the compressed air B. The vacuum suction / discharge device 2 includes a suction pipe 7 and a discharge pipe 8, and the suction pipe 7 extends to a face of the horizontal shaft. The on-off valve 15 is a motor valve, and the suction pipe 7
It is interposed in the middle of. The air ejector 3 is provided in the middle of the suction pipe 7.
【００１５】横坑の切羽で発生した土砂混じりの湧水Ａ
は、真空吸引排出装置２に依り吸引されて吸引管７にて
開閉弁１５からエアエゼクタ３に送られる。エアエゼク
タ３に送られた湧水Ａは、開閉弁１５の閉弁と同時に圧
縮空気源１３からの圧縮空気Ｂに依り加圧されて吸引管
７にて真空吸引排出装置２に揚水される。真空吸引排出
装置２に揚水された湧水Ａは、その真空ポンプユニット
５４に依り圧縮空気Ｂが分離されて大気中に放出された
後、排出管８を経て排水処理装置等（図示せず）に送ら
れる。この様なものは、エアエゼクタ３と開閉弁１５を
設けたので、間欠的ではあるが開閉弁１５以降の湧水Ａ
を揚水する事ができる。Spring water A mixed with earth and sand generated at the face of the horizontal shaft
Is sucked by the vacuum suction / discharge device 2 and sent to the air ejector 3 from the opening / closing valve 15 by the suction pipe 7. The spring water A sent to the air ejector 3 is pressurized by the compressed air B from the compressed air source 13 at the same time when the on-off valve 15 is closed, and is pumped to the vacuum suction / discharge device 2 by the suction pipe 7. The spring water A pumped by the vacuum suction / discharge device 2 is separated into compressed air B by the vacuum pump unit 54 and discharged into the atmosphere, and then discharged through a discharge pipe 8 to a drainage treatment device or the like (not shown). Sent to In such a device, since the air ejector 3 and the opening / closing valve 15 are provided, the spring water A after the opening / closing valve 15 is intermittent.
Can be pumped.
【００１６】図７は、本発明の第六例の坑内排水装置を
示す概要図である。当該坑内排水装置１は、請求項２記
載の発明に係るものであり、坑外に設けられて湧水Ａを
吸引して排出する上位真空吸引排出装置２Ａと、上位真
空吸引排出装置２Ａの吸引側で坑内の下位に設けられて
湧水Ａを吸引して排出する下位真空吸引排出装置２Ｂ
と、下位真空吸引排出装置２Ｂの排出側近傍に設けられ
てこれからの湧水Ａを圧縮空気Ｂに依り加圧するエアエ
ゼクタ３と、から構成されている。つまり、本例は、第
五例の開閉弁１５を下位真空吸引排出装置２Ｂに置き換
えたものである。FIG. 7 is a schematic diagram showing an underground drainage device according to a sixth embodiment of the present invention. The underground drainage device 1 according to the second aspect of the present invention is provided with an upper vacuum suction and discharge device 2A provided outside the mine to suction and discharge spring water A, and a suction of the upper vacuum suction and discharge device 2A. Vacuum suction and discharge device 2B provided on the lower side of the mine to suction and discharge spring water A
And an air ejector 3 provided in the vicinity of the discharge side of the lower vacuum suction / discharge device 2B and pressurizing spring water A from here on with compressed air B. That is, in this example, the on-off valve 15 of the fifth example is replaced with the lower vacuum suction / discharge device 2B.
【００１７】横坑の切羽で発生した土砂混じりの湧水Ａ
は、下位真空吸引排出装置２Ｂに依り吸引されて吸引管
７にてエアエゼクタ３に送られる。エアエゼクタ３に送
られた湧水Ａは、圧縮空気源１３からの圧縮空気Ｂに依
り加圧されて吸引管７にて上位真空吸引排出装置２Ａに
揚水される。上位真空吸引排出装置２Ａに揚水された湧
水Ａは、その真空ポンプユニット５４に依り圧縮空気Ｂ
が分離されて大気中に放出された後、排出管８を経て排
水処理装置等（図示せず）に送られる。この様なもの
は、エアエゼクタ３に依り下位真空吸引排出装置２Ｂか
らの湧水Ａをそのまま連続して揚水する事ができる。Spring water A mixed with earth and sand generated at the face of the horizontal shaft
Is sucked by the lower vacuum suction / discharge device 2B and sent to the air ejector 3 by the suction pipe 7. The spring water A sent to the air ejector 3 is pressurized by the compressed air B from the compressed air source 13 and is pumped by the suction pipe 7 to the upper vacuum suction / discharge device 2A. The spring water A pumped by the upper vacuum suction / discharge device 2A is compressed air B by the vacuum pump unit 54.
Is separated and released into the atmosphere, and then sent to a wastewater treatment device or the like (not shown) via a discharge pipe 8. In such a device, the spring A from the lower vacuum suction / discharge device 2B can be continuously pumped as it is by the air ejector 3.
【００１８】図８は、本発明の第七例の坑内排水装置を
示す概要図である。当該坑内排水装置は、請求項２記載
の発明に係るものであり、坑内の上位に設けられて湧水
Ａを吸引して排出する上位真空吸引排出装置２Ａと、上
位真空吸引排出装置２Ａの吸引側で坑内の下位に設けら
れて湧水Ａを吸引して排出する下位真空吸引排出装置２
Ｂと、下位真空吸引排出装置２Ｂの排出側近傍に設けら
れてこれからの湧水Ａを圧縮空気Ｂに依り加圧するエア
エゼクタ３と、から構成されている。つまり、本例は、
上位真空吸引排出装置２Ａを立坑下に設けると共に、下
位真空吸引排出装置２Ｂを立坑下から斜坑を介して延び
る横坑に設けた点が、第六例と異なる。圧縮空気源１３
は、坑内に設置してある。FIG. 8 is a schematic view showing an underground drainage device according to a seventh embodiment of the present invention. The underground drainage device according to the second aspect of the present invention is provided with an upper vacuum suction and discharge device 2A that is provided at an upper position in the mine to suction and discharge spring water A, and a suction of the upper vacuum suction and discharge device 2A. Vacuum suction and discharge device 2 that is provided in the lower part of the mine and suctions and discharges spring water A
B, and an air ejector 3 provided near the discharge side of the lower vacuum suction / discharge device 2B and pressurizing spring water A from here with compressed air B. In other words, this example
The sixth example is different from the sixth example in that the upper vacuum suction / discharge device 2A is provided below the shaft, and the lower vacuum suction / discharge device 2B is provided in a horizontal shaft extending from below the shaft through an inclined shaft. Compressed air source 13
Is installed in the mine.
【００１９】図９は、本発明の第八例の坑内排水装置を
示す概要図である。当該坑内排水装置は、請求項２記載
の発明に係るものであり、坑内の上位に設けられて湧水
Ａを吸引して排出する上位真空吸引排出装置２Ａと、上
位真空吸引排出装置２Ａの吸引側で坑内の下位に設けら
れて湧水Ａを吸引して排出する下位真空吸引排出装置２
Ｂと、坑内の下位に設けられて湧水Ａを貯溜するピット
４と、ピット４の湧水Ａを揚水するポンプ５と、下位真
空吸引排出装置２Ｂの排出側及びポンプ５の吐出側近傍
に設けられてこれらからの湧水Ａを圧縮空気Ｂに依り加
圧するエアエゼクタ３と、から構成したものである。つ
まり、本例は、第四例と第六例とを組み合わせたもので
ある。下位真空吸引排出装置２Ｂの排出側及びポンプ５
の吐出側には、夫々の逆流を防ぐ逆止弁１６が設けられ
ている。この様なものは、横坑の切羽で発生した湧水Ａ
とピット４に貯溜された湧水Ａの両方を揚水する事がで
きる。FIG. 9 is a schematic diagram showing an underground drainage device according to an eighth embodiment of the present invention. The underground drainage device according to the second aspect of the present invention is provided with an upper vacuum suction and discharge device 2A that is provided at an upper position in the mine to suction and discharge spring water A, and a suction of the upper vacuum suction and discharge device 2A. Vacuum suction and discharge device 2 that is provided in the lower part of the mine and suctions and discharges spring water A
B, a pit 4 provided in the lower part of the pit to store the spring water A, a pump 5 for pumping the spring water A in the pit 4, and a discharge side of the lower vacuum suction and discharge device 2B and a vicinity of the discharge side of the pump 5. An air ejector 3 is provided and pressurizes spring water A from these with compressed air B. That is, this example is a combination of the fourth example and the sixth example. Discharge side of lower vacuum suction and discharge device 2B and pump 5
The discharge side is provided with a check valve 16 for preventing each back flow. This is the spring A generated at the face of the horizontal shaft.
And the spring water A stored in the pit 4 can be pumped.
【００２０】尚、圧縮空気源１３は、第七例では坑内に
それ以外の例では坑外に設置したが、これに限らず、例
えばこれらを逆にしても良い。In the seventh example, the compressed air source 13 is installed inside a pit, but in other examples, the compressed air source 13 is installed outside the mine. However, the present invention is not limited to this.
【００２１】[0021]
【発明の効果】以上、既述した如く、本発明に依れば、
次の様な優れた効果を奏する事ができる。 （１） 真空吸引排出装置とエアエゼクタとで構成し、
とりわけ湧水を圧縮空気に依り加圧するエアエゼクタを
設けたので、坑が深く且つ長くなっても坑内で発生した
土砂混じりの湧水を良好に坑外に排出する事ができる。 （２） 湧水を圧縮空気に依り加圧するエアエゼクタを
設けたので、湧水量が少なくても配管内の土砂詰まり等
のトラブルの発生を防止できる。As described above, according to the present invention,
The following excellent effects can be obtained. (1) Consists of a vacuum suction / discharge device and an air ejector,
In particular, since the air ejector for pressurizing the spring water with the compressed air is provided, even if the shaft is deep and long, the spring water mixed with the sediment generated in the shaft can be discharged well outside. (2) Since the air ejector for pressurizing the spring water with the compressed air is provided, even if the amount of the spring water is small, it is possible to prevent occurrence of troubles such as clogging of sediment in the piping.
【図１】本発明の第一例の坑内排水装置を示す概要図。FIG. 1 is a schematic diagram showing an underground drainage device according to a first example of the present invention.
【図２】エアエゼクタの構造を示す縦断面図。FIG. 2 is a longitudinal sectional view showing a structure of an air ejector.
【図３】本発明の第二例の坑内排水装置を示す概要図。FIG. 3 is a schematic diagram showing an underground drainage device according to a second example of the present invention.
【図４】本発明の第三例の坑内排水装置を示す概要図。FIG. 4 is a schematic diagram showing an underground drainage device according to a third embodiment of the present invention.
【図５】本発明の第四例の坑内排水装置を示す概要図。FIG. 5 is a schematic view showing a fourth example of an underground drainage device of the present invention.
【図６】本発明の第五例の坑内排水装置を示す概要図。FIG. 6 is a schematic diagram showing a fifth example of an underground drainage device of the present invention.
【図７】本発明の第六例の坑内排水装置を示す概要図。FIG. 7 is a schematic diagram showing an underground drainage device according to a sixth example of the present invention.
【図８】本発明の第七例の坑内排水装置を示す概要図。FIG. 8 is a schematic view showing a seventh example of an underground drainage device of the present invention.
【図９】本発明の第八例の坑内排水装置を示す概要図。FIG. 9 is a schematic view showing an underground drainage device according to an eighth embodiment of the present invention.
【図１０】従来の坑内排水装置を示す概要図。FIG. 10 is a schematic diagram showing a conventional underground drainage device.
【図１１】真空吸引排出装置の真空ポンプユニットを示
す概要図。FIG. 11 is a schematic diagram showing a vacuum pump unit of the vacuum suction / discharge device.
【図１２】真空吸引排出装置の排出ユニットを示す概要
図。FIG. 12 is a schematic diagram showing a discharge unit of the vacuum suction / discharge device.
１，５０…坑内排水装置、２，２Ａ，２Ｂ，５１…真空
吸引排出装置、３…エアエゼクタ、４，５２…ピット、
５，５３…ポンプ、６…ホッパ、７…吸引管、８…排出
管、９…吐出管、１０…本体、１１…ノズル、１２…空
気管、１３…圧縮空気源、１４…サイクロン、１５…開
閉弁、１６…逆止弁、５４…真空ポンプユニット、５５
…排出ユニット、５６…真空ポンプ、５７，６３…水中
ポンプ、５８…補給水タンク、５９…排気分離装置、６
０…スクリーン、６１…扉、６２…セパレートタンク、
６４…サイクロン、６５…フィルタタンク、６６…サン
ドポンプ、Ａ…湧水、Ｂ…圧縮空気。1,50: underground drainage device, 2, 2A, 2B, 51: vacuum suction / discharge device, 3: air ejector, 4, 52: pit,
5, 53 pump, 6 hopper, 7 suction pipe, 8 discharge pipe, 9 discharge pipe, 10 body, 11 nozzle, 12 air pipe, 13 compressed air source, 14 cyclone, 15 On-off valve, 16: check valve, 54: vacuum pump unit, 55
... Discharge unit, 56 ... Vacuum pump, 57, 63 ... Submersible pump, 58 ... Refill water tank, 59 ... Exhaust separator, 6
0 ... Screen, 61 ... Door, 62 ... Separate tank,
64: cyclone, 65: filter tank, 66: sand pump, A: spring water, B: compressed air.
Claims (2)
排出する真空吸引排出装置と、真空吸引排出装置の近傍
に設けられてこれからの湧水を圧縮空気に依り加圧する
エアエゼクタと、から構成した事を特徴とする坑内排水
装置。1. A vacuum suction / discharge device provided at a lower position in a mine for sucking and discharging spring water, an air ejector provided near the vacuum suction / discharge device and pressurizing spring water from here on with compressed air, Underground drainage device characterized by comprising.
吸引して排出する真空吸引排出装置と、坑内の下位に設
けられて真空吸引排出装置への湧水を圧縮空気に依り加
圧するエアエゼクタと、から構成した事を特徴とする坑
内排水装置。2. A vacuum suction / discharge device provided above or below the mine for sucking and discharging spring water, and a spring water provided to the lower portion of the pit for suction and discharge of vacuum water by compressed air. An underground drainage device comprising: an air ejector that presses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23750695A JP2843976B2 (en) | 1995-09-18 | 1995-09-18 | Underground drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23750695A JP2843976B2 (en) | 1995-09-18 | 1995-09-18 | Underground drainage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0979000A JPH0979000A (en) | 1997-03-25 |
| JP2843976B2 true JP2843976B2 (en) | 1999-01-06 |
Family
ID=17016336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23750695A Expired - Fee Related JP2843976B2 (en) | 1995-09-18 | 1995-09-18 | Underground drainage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2843976B2 (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865105A (en) * | 2012-10-17 | 2013-01-09 | 中南大学 | Mud discharging facility composed of water pump and mud discharging tank |
| CN104696011A (en) * | 2015-04-01 | 2015-06-10 | 广东安元矿业勘察设计有限公司 | Improved method of underground flat drainage system of coal mine middle section |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0979000A (en) | 1997-03-25 |
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