JP3154014B2 - Method and apparatus for feeding mixed pressure of earth and sand - Google Patents
Method and apparatus for feeding mixed pressure of earth and sandInfo
- Publication number
- JP3154014B2 JP3154014B2 JP12883792A JP12883792A JP3154014B2 JP 3154014 B2 JP3154014 B2 JP 3154014B2 JP 12883792 A JP12883792 A JP 12883792A JP 12883792 A JP12883792 A JP 12883792A JP 3154014 B2 JP3154014 B2 JP 3154014B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pump
- earth
- sand
- mixed pressure
- 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
- Air Transport Of Granular Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、土砂を混気圧送する際
に、複数のポンプで圧送される土砂を一本の管路に集め
て圧送するために使用される土砂の混気圧送方法および
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for feeding mixed pressure of earth and sand which is used for collecting and sending the earth and sand pumped by a plurality of pumps into a single conduit when feeding the earth with mixed pressure. And devices.
【０００２】[0002]
【従来の技術】従来、複数のポンプで混気圧送により圧
送される土砂を一本の管路に集めて圧送することによ
り、管路の設備費及び設置作業費の低減をはかりうる特
開平３−１６９９２５および特開平３−２３８２２９の
土砂の空気圧送方法に関する発明がなされている。2. Description of the Related Art Conventionally, the earth and sand pumped by a plurality of pumps by a mixed pressure method is collected in a single pipe and fed, so that the facility cost and the installation work cost of the pipe can be reduced. No. 169925 and Japanese Patent Application Laid-Open No. Hei 3-238229 have disclosed inventions relating to a method for feeding pneumatic soil.
【０００３】しかしながら、上記の空気圧送方法の場合
には、一つのポンプが停止し、他のポンプが稼働する
と、停止しているポンプの方へ土砂が逆流するので、こ
れを防ぐために逆止弁や電磁弁を設けており、これら逆
止弁や電磁弁を設けることにより、設備費が嵩むという
問題があった。However, in the case of the above-mentioned pneumatic feeding method, when one pump is stopped and the other pump is operated, the earth and sand flows backward toward the stopped pump. And a solenoid valve are provided, and providing such a check valve or a solenoid valve has a problem that equipment costs increase.
【０００４】[0004]
【発明の解決しようとする課題】本発明は、前記従来の
問題点を解決するためになされたものであり、土砂逆流
防止のための逆止弁や電磁弁を設けることなく、複数の
ポンプで圧送される土砂を一本の管路に集めて混気圧送
することのできる土砂の混気圧送方法および装置を提供
することを目的としたものである。SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and requires a plurality of pumps without providing a check valve or a solenoid valve for preventing backflow of sediment. It is an object of the present invention to provide a method and an apparatus for feeding a mixed pressure of earth and sand which can collect the soil to be pumped into one pipe and send the mixed pressure.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の土砂の圧送方法は、各貯泥タンクの土砂を
管路を介してその貯泥タンクより低い位置にある各ポン
プにより、そのポンプの吐出側に接続した直立管に圧送
する複数の圧送装置の各管路からの土砂を、各直立管の
上部で、一本の管路に集め、かつその土砂に加圧空気を
供給して混気圧送すると共に、上記各圧送装置のポンプ
を常時運転させておくことを特徴としている。In order to achieve the above-mentioned object, a method for pumping soil and soil according to the present invention is characterized in that the earth and sand of each mud storage tank is pumped by a pump located at a lower position than the mud storage tank via a pipeline. At the top of each upright pipe, the sediment from each pipeline of a plurality of pumping devices for pumping to an upright pipe connected to the discharge side of the pump is collected in one pipeline, and pressurized air is applied to the soil. It is characterized in that the pressure is supplied and mixed pressure is fed, and the pumps of the respective pressure feeding devices are constantly operated.
【０００６】また、上記の混気圧送方法を適用可能な混
気圧送装置としては、各貯泥タンクに管路を介してその
貯泥タンクより低い位置に設けられたポンプの吐出側に
直立管を接続した複数の圧送装置を、上記各直立管の上
部で、一本の管路に接続すると共に、接続した一本の管
路に加圧空気の供給管を接続することにより構成され
る。[0006] In addition, as a mixed pressure feeding apparatus to which the above mixed pressure feeding method can be applied, a vertical pipe is provided on a discharge side of a pump provided at a position lower than the mud storage tank via a duct in each mud storage tank. Are connected to one pipe at the upper part of each of the upright pipes, and a pressurized air supply pipe is connected to the one connected pipe.
【０００７】[0007]
【作用】上記の構成からなる装置では、各圧送装置のポ
ンプを常時運転させているので、圧送装置のうちのいず
れかの装置が土砂の供給を停止した場合でも、その停止
した装置のポンプ自身が起動、空転、再起動を繰り返し
て、土砂の逆流を防止することができる。In the apparatus having the above configuration, the pump of each pumping device is always operated. Therefore, even if one of the pumping devices stops supplying the earth and sand, the pump itself of the stopped device is stopped. It can prevent backflow of earth and sand by repeating starting, idling, and restarting.
【０００８】[0008]
【実施例】以下図面を参照して本発明の一実施例を説明
するが、図１は本発明の土砂の混気圧送方法を適用する
装置の概略側断面図であり、図２は図１の概略平面図で
ある。まず、図１および図２において、複数、例えばこ
の実施例では２つの土砂の圧送装置Ｘ，Ｙがあり、これ
ら圧送装置は、各貯泥タンク１Ａ，１Ｂに投入された土
砂を管路４を介してその貯泥タンク１Ａ，１Ｂより低い
位置に設けられた加圧翼車や、この実施例のような渦巻
きポンプなどのポンプ２により、そのポンプ２の吐出側
に接続した直立管３に圧送するようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic sectional side view of an apparatus to which the method for feeding mixed pressure of earth and sand according to the present invention is applied, and FIG. It is a schematic plan view of. First, in FIG. 1 and FIG. 2, there are a plurality of, for example, two earth and sand pumping apparatuses X and Y in this embodiment, and these pumping apparatuses transfer the earth and sand put into each of the mud storage tanks 1A and 1B through a pipeline 4. A pump 2 such as a centrifugal pump provided in a position lower than the mud storage tanks 1A and 1B or a centrifugal pump as in this embodiment pressurizes and feeds the upright pipe 3 connected to the discharge side of the pump 2. It is supposed to.
【０００９】以上のように構成された各圧送装置１Ａ，
１Ｂのそれぞれの各直立管３からの土砂を、各直立管３
の上部で、管径のより大きな一本の管路５に接続し、さ
らにその管路５の上流側に、加圧空気の供給管６を接続
している。上記の構成からなる本発明の土砂の混気圧送
装置の作動状況を次に説明するが、上記各圧送装置Ｘ，
Ｙのポンプ２をそれぞれのモータ９で常時運転させてお
くものとする。Each of the pumping devices 1A, 1A,
1B, the sediment from each of the upright pipes 3 is transferred to each of the upright pipes 3.
Is connected to a pipe 5 having a larger pipe diameter, and a supply pipe 6 for pressurized air is connected upstream of the pipe 5. Next, the operation of the above-structured earth and sand mixed pressure feeder of the present invention will be described.
It is assumed that the Y pumps 2 are always operated by the respective motors 9.
【００１０】まず、各貯泥タンク１Ａ，１Ｂ内の流動化
した土砂が各ポンプ２へ送られている状態で、貯泥タン
ク１Ａへの土砂の供給が停止すると、図１で貯泥タンク
１Ａの流動化土砂の位置は、図中のレベルＡからレベル
Ｂに下がる。この状態になると、ポンプ２は空気を吸入
し、ポンプ２の働きができず、吐出圧力は急激に低下す
る。そして、直立管３内にある流動化した土砂は、貯泥
タンク１Ａ方向に逆流し、貯泥タンク１Ａ内の土砂の位
置は図中のレベルＡまで復旧し、ポンプ２の吐出側の便
宜上斜線で示す土砂の位置も、レベルＣまで下がる。First, when the supply of the sediment to the mud storage tank 1A is stopped while the fluidized sediment in each of the mud storage tanks 1A and 1B is being sent to the respective pumps 2, the mud storage tank 1A shown in FIG. Of the fluidized sediment falls from level A to level B in the figure. In this state, the pump 2 sucks in air, and the pump 2 cannot function, and the discharge pressure drops sharply. The fluidized sediment in the upright pipe 3 flows backward in the direction of the mud storage tank 1A, and the position of the sediment in the mud storage tank 1A is restored to the level A in the figure. The position of the earth and sand indicated by is also lowered to the level C.
【００１１】こうなると、ポンプ２が再びポンプの働き
ができる状態となる。すなわち、貯泥タンク１Ａ，１Ｂ
をポンプ２の位置よりも高い位置に配置し、ポンプ２の
吐出側に直立管３を接続して設けることにより、土砂を
吐出側の直立管３の図中のレベルＤとレベルＣとの間に
貯めておくことができ、ポンプ２が空転状態に至った場
合でも再起動が可能になる。In this case, the pump 2 is ready to function as a pump again. That is, the storage tanks 1A and 1B
Is disposed at a position higher than the position of the pump 2, and the upright pipe 3 is connected to the discharge side of the pump 2 so that the earth and sand fall between the level D and the level C in the figure of the upright pipe 3 on the discharge side. The pump 2 can be restarted even when the pump 2 has run idle.
【００１２】したがって、複数の圧送装置Ｘ，Ｙのうち
のいずれかの装置が土砂の供給を停止しても、ポンプ２
を常時運転状態にしておけば、そのポンプ２自身が、起
動、空転、再起動を繰り返すので逆流を防止できる。Therefore, even if one of the plurality of pumping devices X and Y stops supplying the earth and sand, the pump 2
, The pump 2 itself starts, idles, and restarts repeatedly, so that backflow can be prevented.
【００１３】[0013]
【発明の効果】以上に説明したように、本発明の土砂の
混気圧送方法および装置によれば、複数の圧送装置の各
管路を一本の管路に集めるのに、逆止弁や、電磁弁とい
った弁類が不要なので、装置が簡単になり、かつ経済的
になるという効果がある。As described above, according to the method and the apparatus for feeding the mixed pressure of the earth and sand of the present invention, the pipes of the plurality of pressure feeding apparatuses are collected into one pipe by using the check valve or the like. Since no valves such as a solenoid valve are required, there is an effect that the apparatus becomes simple and economical.
【図１】本発明の土砂の混気圧送方法を適用する装置の
一実施例における概略側断面図である。FIG. 1 is a schematic sectional side view of an embodiment of an apparatus to which a method for feeding a mixed pressure of earth and sand according to the present invention is applied.
【図２】図１の概略平面図である。FIG. 2 is a schematic plan view of FIG.
１Ａ，１Ｂ 貯泥タンク ２ ポンプ ３ 直立管 ４ 管路 ５ 管路 ６ 加圧空気の
供給管 Ｘ，Ｙ 圧送装置1A, 1B Mud storage tank 2 Pump 3 Upright pipe 4 Pipe line 5 Pipe line 6 Supply pipe for pressurized air X, Y Pressure feeder
Claims (2)
貯泥タンクより低い位置にある各ポンプにより、そのポ
ンプの吐出側に接続した直立管に圧送する複数の圧送装
置の各直立管からの土砂を、各直立管の上部で一本の管
路に集め、かつその土砂に加圧空気を供給して混気圧送
すると共に、上記各圧送装置のポンプを常時運転させて
おく土砂の混気圧送方法。1. Each of a plurality of pumping devices for pumping earth and sand of each mud storage tank through pipe lines to respective upright pipes connected to the discharge side of the pump by each pump located at a position lower than the mud storage tank. The sediment from the pipes is collected in one pipe at the upper part of each upright pipe, and pressurized air is supplied to the soil and the mixed pressure is sent, and the pump of each of the above-mentioned pumping devices is always operated. Mixed pressure delivery method.
クより低い位置に設けられたポンプの吐出側に直立管を
接続した複数の圧送装置を、上記各直立管の上部で、一
本の管路に接続すると共に、接続した一本の管路に加圧
空気の供給管を接続した土砂の混気圧送装置。2. A plurality of pumping devices each having an upright pipe connected to a discharge side of a pump provided at a position lower than the mud storage tank via a pipe line in each mud storage tank, at an upper portion of each upright pipe, A mixed pressure feeder for earth and sand which is connected to one pipe and connected to one connected pipe with a supply pipe for pressurized air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12883792A JP3154014B2 (en) | 1992-05-21 | 1992-05-21 | Method and apparatus for feeding mixed pressure of earth and sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12883792A JP3154014B2 (en) | 1992-05-21 | 1992-05-21 | Method and apparatus for feeding mixed pressure of earth and sand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05321292A JPH05321292A (en) | 1993-12-07 |
| JP3154014B2 true JP3154014B2 (en) | 2001-04-09 |
Family
ID=14994627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12883792A Expired - Fee Related JP3154014B2 (en) | 1992-05-21 | 1992-05-21 | Method and apparatus for feeding mixed pressure of earth and sand |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3154014B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6721105B2 (en) | 2001-12-12 | 2004-04-13 | Nikon Corporation | Zoom lens system |
-
1992
- 1992-05-21 JP JP12883792A patent/JP3154014B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6721105B2 (en) | 2001-12-12 | 2004-04-13 | Nikon Corporation | Zoom lens system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05321292A (en) | 1993-12-07 |
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