JPH03279117A - Force feed device for slurry - Google Patents
Force feed device for slurryInfo
- Publication number
- JPH03279117A JPH03279117A JP7564090A JP7564090A JPH03279117A JP H03279117 A JPH03279117 A JP H03279117A JP 7564090 A JP7564090 A JP 7564090A JP 7564090 A JP7564090 A JP 7564090A JP H03279117 A JPH03279117 A JP H03279117A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- transport pipe
- piston
- pumping device
- cylinder chamber
- 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.)
- Pending
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 68
- 238000005086 pumping Methods 0.000 claims description 29
- 239000010802 sludge Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、例えば浚渫土砂やヘドロ、トンネルマシンの
排土、打設用コンクリートなどスラリーの圧送に通用さ
れるスラリーの圧送装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a slurry pumping device that is used for pumping slurry such as dredged earth and sand, sludge, earth removal by tunnel machines, and concrete for pouring.
第４図は従来のスラリー圧送装置の構造説明図である。 FIG. 4 is a structural explanatory diagram of a conventional slurry pumping device.
図において、本装置はコンクリート打設機械などに広く
採用されているもので、１はスラリータンク、２はスラ
リー、３はシリンダ、４はシリンダ室、５はピストン、
６は吸入弁、７は吐出弁、８は輸送管、９は排出口であ
る。シリンダ３内でピストン５が右向きに動く吸入行程
では吐出弁７が閉じて吸入弁６が開き、スラリータンク
１内のスラリー２が吸入弁６を介しシリンダ室４内に吸
い込まれてシリンダ室４内に充満する。ピストン５が左
向きに動く吐出行程では吸入弁６が閉じて吐出弁７が開
き、シリンダ室４内のスラリー２は吐出弁７を介して輸
送管８内に押出される。In the figure, this device is widely used in concrete casting machines, etc., and 1 is a slurry tank, 2 is a slurry tank, 3 is a cylinder, 4 is a cylinder chamber, 5 is a piston,
6 is a suction valve, 7 is a discharge valve, 8 is a transport pipe, and 9 is a discharge port. During the suction stroke in which the piston 5 moves rightward within the cylinder 3, the discharge valve 7 closes and the suction valve 6 opens, and the slurry 2 in the slurry tank 1 is sucked into the cylinder chamber 4 through the suction valve 6. filled with. During the discharge stroke in which the piston 5 moves leftward, the suction valve 6 is closed and the discharge valve 7 is opened, and the slurry 2 in the cylinder chamber 4 is pushed out through the discharge valve 7 into the transport pipe 8.
ピストン５がこのような吸入行程と吐出行程とを繰返す
ことによってスラリー２は輸送管８を介して目的の場所
に導かれ、ピストン５の動きに応じて排出口９から間欠
的に排出されるようになっている。As the piston 5 repeats such suction stroke and discharge stroke, the slurry 2 is guided to the target location via the transport pipe 8, and is intermittently discharged from the discharge port 9 according to the movement of the piston 5. It has become.
上記のように、従来のスラリーの圧送装置においては、
シリンダ室４内と輸送管８内のスラリー２をピストン５
によって間欠的に押し出しており、輸送管８内における
スラリー２の流動抵抗のために輸送管８が長くなるに従
いピストン５によりスラリー２を押出す圧力を高くしな
ければならず、輸送距離が長い場合にはピストン５、シ
リンダ３、輸送管８などスラリー２の圧力が高くなる部
分の機械的な強度を増すため、装置全体の重量が増大す
るとともに輸送コストが上昇する。As mentioned above, in the conventional slurry pumping device,
The slurry 2 in the cylinder chamber 4 and the transport pipe 8 is transferred to the piston 5.
Because of the flow resistance of the slurry 2 in the transport pipe 8, as the transport pipe 8 becomes longer, the pressure to push the slurry 2 by the piston 5 must be increased, and when the transport distance is long. In order to increase the mechanical strength of parts such as the piston 5, cylinder 3, and transport pipe 8 where the pressure of the slurry 2 is high, the weight of the entire device increases and the transportation cost increases.
本発明に係るスラリーの圧送装置は上記課題を解決する
ことを目的にしており、往復動を行うピストンによりス
ラリーをシリンダ室内に吸入するとともに押出して輸送
管により圧送するスラリーの圧送装置において、上記輸
送管に圧縮気体を間欠的に供給する圧縮気体供給手段を
備えたことを特徴としている。A slurry pumping device according to the present invention is aimed at solving the above problems, and is a slurry pumping device in which slurry is sucked into a cylinder chamber by a reciprocating piston, and then pushed out and pumped through a transport pipe. It is characterized by comprising a compressed gas supply means for intermittently supplying compressed gas to the pipe.
また、本発明に係るスラリーの圧送装置は、上記圧縮気
体供給手段が上記輸送管に管制弁を介して装着された圧
縮気体源であることを特徴としている。Further, the slurry pumping device according to the present invention is characterized in that the compressed gas supply means is a compressed gas source installed in the transport pipe via a control valve.
また、本発明のスラリーの圧送装置は、上記圧縮気体供
給手段が往復型気体圧送装置であることを特徴としてい
る。Further, the slurry pumping device of the present invention is characterized in that the compressed gas supply means is a reciprocating gas pumping device.
即ち、本発明に係るスラリーの圧送装置においては、ス
ラリーを圧送する輸送管に圧縮気体が例えば管制弁を介
する圧縮気体源や往復型気体圧送装置などの圧縮気体供
給手段により間欠的に供給されるようになっており、輸
送管内に圧縮気体が間欠的に供給されることにより輸送
管内におけるスラリーの流動抵抗が減少し、スラリーの
みを圧送する場合よりも低い圧力でスラリーが圧送され
る。That is, in the slurry pumping device according to the present invention, compressed gas is intermittently supplied to the transport pipe for pumping the slurry, for example, by a compressed gas supply means such as a compressed gas source via a control valve or a reciprocating gas pumping device. By intermittently supplying compressed gas into the transport pipe, the flow resistance of the slurry within the transport pipe is reduced, and the slurry is pumped at a lower pressure than when only the slurry is pumped.
第１図は本発明の一実施例に係るスラリーの圧送装置の
構造説明図、第２図は本発明の他の実施例に係るスラリ
ーの圧送装置の構造説明図、第３図はこれらの作用説明
図である。第１図において、本実施例に係るスラリーの
圧送装置は打設用コンクリートの長距離の圧送に使用さ
れるもので、図に示すようにスラリータンク１の下部に
シリンダ室４が設けられており、シリンダ３内でピスト
ン５が右向きに動く吸入行程では吐出弁７が閉じて吸入
弁６が開き、スラリータンク１内のスラリー２が吸入弁
６を介してシリンダ室４内に吸い込まれてシリンダ室４
内に充満する。ピストン５が左向きに動く吐出行程では
吸入弁６が閉じて吐出弁７が開き、シリンダ室４内のス
ラリー２は吐出弁７を介して輸送管８内に押出される。Fig. 1 is a structural explanatory diagram of a slurry pumping device according to one embodiment of the present invention, Fig. 2 is a structural explanatory diagram of a slurry pumping device according to another embodiment of the present invention, and Fig. 3 is an explanatory diagram of the structure of a slurry pumping device according to another embodiment of the present invention. It is an explanatory diagram. In Fig. 1, the slurry pumping device according to this embodiment is used for pumping concrete for pouring over long distances, and as shown in the figure, a cylinder chamber 4 is provided at the bottom of a slurry tank 1. , during the suction stroke in which the piston 5 moves rightward within the cylinder 3, the discharge valve 7 closes and the suction valve 6 opens, and the slurry 2 in the slurry tank 1 is sucked into the cylinder chamber 4 via the suction valve 6 and flows into the cylinder chamber. 4
Fill inside. During the discharge stroke in which the piston 5 moves leftward, the suction valve 6 is closed and the discharge valve 7 is opened, and the slurry 2 in the cylinder chamber 4 is pushed out through the discharge valve 7 into the transport pipe 8.
ピストン５がこのような吸入行程と吐出行程とを繰返す
ことによってスラリー２は輸送管８を介して目的の場所
に導かれ、ピストン５の動きに応じて排出口９から間欠
的に排出されるようになっている。As the piston 5 repeats such suction stroke and discharge stroke, the slurry 2 is guided to the target location via the transport pipe 8, and is intermittently discharged from the discharge port 9 according to the movement of the piston 5. It has become.
さらに、輸送管８には圧縮空気槽２１、管制弁２２など
が装着されており、輸送管８の途中に圧縮空気源２１で
加圧された圧縮空気がオンオフ弁のような管制弁２２を
介して圧縮空気供給口２３から間欠的に供給されるよう
になっている。Furthermore, the transport pipe 8 is equipped with a compressed air tank 21, a control valve 22, etc., and the compressed air pressurized by the compressed air source 21 is passed through the control valve 22, such as an on/off valve, in the middle of the transport pipe 8. The compressed air is intermittently supplied from the compressed air supply port 23.
また、第２図において本実施例に係るスラリーの圧送装
置は図に示すように上記の実施例に係る装置とほぼ同一
であるが、圧縮空気源に代えて往復型空気圧送装置３０
が用いられており、空気ピストン３２の上陸行程で空気
吸入弁３４から大気を空気シリンダ室３３内に吸い込み
、空気ピストン３２の上昇行程で空気シリンダ室３３内
の圧力が輸送管８内のスラリーＳの圧力よりも高くなる
と空気吐出弁３５が開いて空気シリンダ室３３内の圧縮
空気が圧縮空気供給口２３から輸送管８内に送り込まれ
る。このようにして、空気ピストン３２のストローク毎
に圧縮空気が輸送管Ｂ内に間欠的に供給されるようにな
っている。In addition, in FIG. 2, the slurry pumping device according to this embodiment is almost the same as the device according to the above embodiment as shown in the figure, but a reciprocating air pumping device 30 is used instead of the compressed air source.
is used, and during the landing stroke of the air piston 32, atmospheric air is sucked into the air cylinder chamber 33 from the air suction valve 34, and during the rising stroke of the air piston 32, the pressure inside the air cylinder chamber 33 is reduced to the slurry S in the transport pipe 8. When the pressure becomes higher than , the air discharge valve 35 opens and the compressed air in the air cylinder chamber 33 is sent into the transport pipe 8 from the compressed air supply port 23. In this way, compressed air is intermittently supplied into the transport pipe B with each stroke of the air piston 32.
このように、上記２つの実施例においては何れも輸送管
８内に圧縮空気が間欠的に供給されるようになっており
、第３図において輸送管８の長さを！。とじ、ピストン
ＤでスラリーＳをり、側からし２側に向けて圧送する場
合、輸送管８の単位長さ当たりの圧力損失をに、輸送管
８内の圧力をＰとする。第３図（ｂ）に示すようにスラ
リーＳのみを圧送する場合は、輸送管８内のスラリーＳ
全体がり、側からし２側に向けて一様に押出されるため
、ピストンＤの押出し圧力ＰＣはＰＣ＝ｋｊｌ！。In this way, in both of the above two embodiments, compressed air is intermittently supplied into the transport pipe 8, and the length of the transport pipe 8 is shown in FIG. . When the slurry S is collected by the piston D and is force-fed toward the side 2, let the pressure loss per unit length of the transport pipe 8 be P, and the pressure inside the transport pipe 8 be P. When only the slurry S is pumped as shown in FIG. 3(b), the slurry S in the transport pipe 8 is
Since the entire body is uniformly extruded toward the side 2, the extrusion pressure PC of the piston D is PC=kjl! .
となり、輸送管８内の圧力分布は直線Ｅで示される。ま
た、同図（ａ）に示すようにり、側からし２側に向けて
所定量のスラリーＳと圧縮空気とを交互に輸送管８内に
送り込む場合は、それぞれのスラリーＳが占める長さを
Ｓｒ、Ｓｔ・・・Ｓ、、、空気が占める長さをＡ＋ 、
Ａ２・・・Ａ７とし、一般にスラリーＳは非圧縮性を考
えてよいからスラリーＳが占める長さＳｔ ＝Ｓ２ ＝
・・・＝Ｓ７の平均値をＳとすると、輸送管８内のスラ
リーＳの合計の長さはＳ＜ｐ、のときＩ！、”ｑｎ−３
、圧送時のそれぞれのスラリーＳの長さＳ前後の圧力差
ΔＰはΔｐ＝ｋｑで与えられる。また、空気は圧縮性が
あってり、側からし２側に向けて輸送管８内のそれぞれ
の位置の圧力に応じて膨張するのでＡ、＜ＡＺ ＜・・
・〈Ａ、、であり、この合計の長さ！、は１Ａ−Ａ、−
！−Ａ２＋・・・＋Ａゎとなるが、空気と輸送管８の内
壁との摩擦損失はスラリーＳのそれと比較すると小さく
無視できるので圧力分布は曲線Ｆのようになる。従って
、この場合のスラリーＳの圧送に必要なピストンＤの押
出す圧力ｐ０はｐ。＝ｋ・ｎ−３＝ｋＩ！、、で、！。Therefore, the pressure distribution inside the transport pipe 8 is shown by a straight line E. In addition, when a predetermined amount of slurry S and compressed air are alternately fed into the transport pipe 8 toward the side shaving 2 as shown in FIG. 2(a), the length occupied by each slurry S is is Sr, St...S,, the length occupied by air is A+,
A2...A7, and since slurry S can generally be considered incompressible, the length occupied by slurry S is St = S2 =
...=If the average value of S7 is S, then the total length of the slurry S in the transport pipe 8 is I! when S<p! ,”qn-3
, the pressure difference ΔP before and after the length S of each slurry S during pressure feeding is given by Δp=kq. Also, since air is compressible and expands toward the side 2 according to the pressure at each position in the transport pipe 8, A, <AZ <...
・〈A,, and this total length! , is 1A-A, -
! -A2+...+AゎHowever, since the friction loss between the air and the inner wall of the transport pipe 8 is small compared to that of the slurry S and can be ignored, the pressure distribution becomes like a curve F. Therefore, the extrusion pressure p0 of the piston D required to pump the slurry S in this case is p. =k・n−3=kI! ,,in,! .
＝１． ＋！！、であるからｐ、＝ｋ （１゜ １
Ａ）＝Ｐｃ ｋｌＡ＜ｐｃとなる。=1. +! ! , so p,=k (1° 1
A)=Pc klA<pc.
即ち、第３図（ａ）に示すように輸送管８内に圧縮空気
が間欠的に供給されることにより輸送管８内におけるス
ラリーＳの流動抵抗が減少し、同図（ｂ）に示すように
スラリーＳのみを圧送する場合と比較して輸送管８の長
さ１０が同じであるならば低い圧力で、また圧送する圧
力が同じであるならば長い距離のスラリーＳの圧送が可
能になる。That is, as shown in FIG. 3(a), by intermittently supplying compressed air into the transport pipe 8, the flow resistance of the slurry S within the transport pipe 8 is reduced, and as shown in FIG. 3(b), Compared to the case of pumping only the slurry S, if the length 10 of the transport pipe 8 is the same, it is possible to use a lower pressure, and if the pressure to be pumped is the same, it is possible to pump the slurry S over a long distance. .
本発明に係るスラリーの圧送装置は前記の通り構成され
ており、スラリーのみを圧送する場合よりも低い圧力で
スラリーが圧送されるので、装置の機械的な強度を低減
することができ、装置全体の重量が減少するとともに輸
送コストが低下する。The slurry pumping device according to the present invention is configured as described above, and the slurry is pumped at a lower pressure than when only slurry is pumped, so the mechanical strength of the device can be reduced, and the overall device As the weight of the product decreases, the cost of transportation decreases.
第１図は本発明の一実施例に係るスラリーの圧送装置の
断面図、第２図は本発明の他の実施例に係るスラリーの
圧送装置の断面図、第３図はこれらの作用説明図、第４
図は従来のスラリーの圧送装置の断面図である。
１・・・スラリータンク、 ２・・・スラリー３・・
・シリンダ、 ４・・・シリンダ室、５・・・ピストン
、 ６・・・吸入弁、 ７・・・吐出弁、８・・・輸送
管、 ９・・・排出口、
２１・・・圧縮空気源、 ２２・・・管制弁、２３・・
・圧縮空気供給口、
３０・・・往復型空気圧送装置、
３１・・・空気シリンダ、 ３２・・・空気ピストン
、３３・・・空気シリンダ室、 ３４・・・空気吸入弁
、３５・・・空気吐出弁。FIG. 1 is a cross-sectional view of a slurry pumping device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a slurry pumping device according to another embodiment of the present invention, and FIG. 3 is an explanatory diagram of their functions. , 4th
The figure is a sectional view of a conventional slurry pumping device. 1...Slurry tank, 2...Slurry 3...
・Cylinder, 4... Cylinder chamber, 5... Piston, 6... Suction valve, 7... Discharge valve, 8... Transport pipe, 9... Discharge port, 21... Compressed air Source, 22... Control valve, 23...
- Compressed air supply port, 30... Reciprocating air pressure feeding device, 31... Air cylinder, 32... Air piston, 33... Air cylinder chamber, 34... Air suction valve, 35... Air discharge valve.
Claims (3)
室内に吸入するとともに押出して輸送管により圧送する
スラリーの圧送装置において、上記輸送管に圧縮気体を
間欠的に供給する圧縮気体供縮手段を備えたことを特徴
とするスラリーの圧送装置。(1) A slurry pumping device in which slurry is sucked into a cylinder chamber by a reciprocating piston, extruded, and pumped through a transport pipe, comprising compressed gas supply means for intermittently supplying compressed gas to the transport pipe. A slurry pumping device characterized by:
して装着された圧縮気体源であることを特徴とする請求
項（１）に記載のスラリーの圧送装置。(2) The slurry pumping device according to claim (1), wherein the compressed gas supply means is a compressed gas source attached to the transport pipe via a control valve.
ることを特徴とする請求項（１）に記載のスラリーの圧
送装置。(3) The slurry pumping device according to claim 1, wherein the compressed gas supply means is a reciprocating gas pumping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7564090A JPH03279117A (en) | 1990-03-27 | 1990-03-27 | Force feed device for slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7564090A JPH03279117A (en) | 1990-03-27 | 1990-03-27 | Force feed device for slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03279117A true JPH03279117A (en) | 1991-12-10 |
Family
ID=13582049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7564090A Pending JPH03279117A (en) | 1990-03-27 | 1990-03-27 | Force feed device for slurry |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03279117A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05186045A (en) * | 1992-01-08 | 1993-07-27 | Unyusho Kowan Gijutsu Kenkyusho | Flowing of slurry and others mixed with pressure air |
| JPH06171751A (en) * | 1992-12-07 | 1994-06-21 | Rinkai Kensetsu Kk | Pulse type compressed air feeding construction for soil and sand and device therefor |
| KR100762415B1 (en) * | 2006-03-31 | 2007-10-02 | 보성환경산업(주) | The horizontal transfer conveyer of air compression type |
| JP2008044794A (en) * | 1999-06-16 | 2008-02-28 | Cleancut Technologies Ltd | Gas transport method |
| JP7084056B1 (en) * | 2020-12-28 | 2022-06-14 | 株式会社シンテック | Method of pumping fluidized soil and its equipment, and method of pumping dehumidified water and its equipment |
-
1990
- 1990-03-27 JP JP7564090A patent/JPH03279117A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05186045A (en) * | 1992-01-08 | 1993-07-27 | Unyusho Kowan Gijutsu Kenkyusho | Flowing of slurry and others mixed with pressure air |
| JPH06171751A (en) * | 1992-12-07 | 1994-06-21 | Rinkai Kensetsu Kk | Pulse type compressed air feeding construction for soil and sand and device therefor |
| JP2008044794A (en) * | 1999-06-16 | 2008-02-28 | Cleancut Technologies Ltd | Gas transport method |
| JP4620711B2 (en) * | 1999-06-16 | 2011-01-26 | クリーンカット・テクノロジーズ・リミテッド | Gas transport method |
| KR100762415B1 (en) * | 2006-03-31 | 2007-10-02 | 보성환경산업(주) | The horizontal transfer conveyer of air compression type |
| JP7084056B1 (en) * | 2020-12-28 | 2022-06-14 | 株式会社シンテック | Method of pumping fluidized soil and its equipment, and method of pumping dehumidified water and its equipment |
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