JP3856097B2 - Cake pump - Google Patents

Cake pump Download PDF

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Publication number
JP3856097B2
JP3856097B2 JP2001152250A JP2001152250A JP3856097B2 JP 3856097 B2 JP3856097 B2 JP 3856097B2 JP 2001152250 A JP2001152250 A JP 2001152250A JP 2001152250 A JP2001152250 A JP 2001152250A JP 3856097 B2 JP3856097 B2 JP 3856097B2
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Japan
Prior art keywords
cake
suction
auger
piston cylinder
pressure
Prior art date
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Expired - Fee Related
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JP2001152250A
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Japanese (ja)
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JP2002349426A (en
Inventor
謙三 菅谷
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Ishigaki Co Ltd
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Ishigaki Co Ltd
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  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a device, relating to a cake force feed pump of dirty mud or the like, operating an auger for cake supply by utilizing particularly a discharge oil circuit of a force feed piston cylinder. SOLUTION: Arranged is an auger 10 in a suction pipe 2 provided under a hopper 1, and when a cake is sucked from the suction pipe 2 to a transport pipe 4 by press feeding oil to a rod side oil chamber 7a of a force feed piston cylinder 7 arranged in the transport pipe 4 for suction and transportation, oil in a head side oil chamber 7b of the force feed piston cylinder 7 is supplied to an oil hydraulic motor 9 for driving the auger 10 to transfer the cake in the suction pipe 2 to a suction port 3 by rotating the auger 10, and the cake force feed pump utilizes a back pressure of the force feed piston cylinder 7 to perform effective practical use of an oil pressure, to make supply of the cake from the hopper 1 associate with suction of the cake to the transport pipe 4.

Description

【０００１】
【発明の属する技術分野】
この発明は、汚泥等のケーキ圧送ポンプに関し、特に、圧送ピストンシリンダーの排油回路を利用してケーキ供給用のオーガーを作動させる装置に関する。
【０００２】
【従来の技術】
従来、ピストン型の圧送ポンプは、例えば、特開昭６２−１４７０５４号公報に記載してあるようにダブルシリンダー型が一般に使用されている。このダブルシリンダー型の油圧シリンダーの駆動は、油圧ポンプを使用しているが、一対のシリンダーに交互に油を送るため、油圧動力と油圧タンクの削減につながっている。また、例えば、特開平７−３３２２３０号公報に記載してあるように、下側にオーガーを備えたホッパーの流入口に吸込バルブを対設し、この流入口を開口した輸送管に吸入・圧縮用の圧送ピストンシリンダーを内設したシングル型の圧送ピストンポンプも公知である。
【０００３】
【発明が解決しようとする課題】
上記従来のダブルシリンダー型の圧送ポンプは、シリンダーに交互に油を送るため、出口でのバルブの開閉が頻繁となり耐久性に問題があった。また、シングル型では、断続的な圧送ポンプの作動のため、油圧の動力が増加して油圧タンクも大きくなる欠点があった。そして、ケーキ圧送ポンプには、ポンプにケーキを送り込むためのオーガーやパドル等が必要であり、シングル型の場合には、これらも断続運転となる。これらの駆動はケーキ排出後の圧送ポンプのシリンダーを後退させて、ケーキを輸送管に吸入するときになされるものである。この発明は、圧送ピストンシリンダーの後退または前進時の背圧を利用して、オーガーの油圧モーターを駆動して、ホッパーからのケーキの供給と、輸送管へのケーキの吸込みを連動させるケーキ圧送ポンプを提供するものである。
【０００４】
【課題を解決するための手段】
この発明の要旨は、ホッパーの下方に設けた吸入管をケーキの輸送管に連結し、吸入管の吸入口に配設した吸入弁と輸送管に内設した吸入・輸送用の圧送ピストンシリンダーを連動させてケーキを輸送する圧送ポンプにおいて、上記圧送ピストンシリンダーのロッド側油室とヘッド側油室への油の給排を切換えるピストン作動弁を配設し、圧送ピストンシリンダーのロッド側油室とピストン作動弁の間にオーガー作動弁を介装させると共に、上記吸入管に内設したオーガーに油圧モーターを連結し、この油圧モーターにオーガー作動弁を接続して、ピストン作動弁を操作して圧送ピストンシリンダーのロッド側油室に油を圧入する時に、オーガー作動弁を切換えて圧送ピストンシリンダーのヘッド側油室を油圧モーターに連通して、ヘッド側油室の油を油圧モーターに供給してオーガーを回転させるもので、圧送ピストンシリンダーの背圧を利用して油圧の有効活用が行なえる。
【０００５】
【発明の実施の形態】
この発明に係るケーキ圧送ポンプは上記のように構成してあり、輸送管の端部に内設した圧送ピストンシリンダーの圧送ピストンを後退させる時に、圧送ピストンシリンダーのヘッド側油室の背圧を活用し、このヘッド側油室から排出させる油を油圧モーターに供給してオーガーを回転させ、ホッパに貯留したケーキを下部の開口から吸入管に落下させ、オーガーを回転させて吸入口に向ってケーキを移送する。そして、吸入管の吸入口に対設した吸入弁を吸入口から離反させ、同時に、輸送管の端部に配設した吸入・輸送用の圧送ピストンシリンダーの圧送ピストンを後退させて、開放した吸入管の吸入口からケーキを輸送管に吸引する。次に、吸入管を吸入弁で閉止して、圧送ピストンを前進させて輸送管に吸引したケーキを圧送する。この操作を連続して繰返しケーキを輸送する。
【０００６】
【実施例】
この発明に係るケーキ圧送ポンプについて、図面に基づき詳述すると、図１は圧送ポンプであって、ホッパ１の下部に設けた開口１ａに吸入管２が連結してあり、吸入管２の吸入口３がケーキの輸送管４の周壁に連結してある。吸入管２の吸入口３に吸入弁５が対設してあり、吸入弁シリンダー６のピストンロッド６ａが輸送管４を貫通して連結してある。吸入弁シリンダー６のピストンロッド６ａを伸縮させて吸入弁５を移動させ、吸入口３を開閉するようにしてある。吸入管２を連結した輸送管４の端部に吸入・輸送用の圧送ピストンシリンダー７が配設してあり、圧送ピストンシリンダー７の圧送ピストン８を後退させて、吸入弁５を開放した吸入管２の吸入口３からケーキを輸送管４の端部に吸引するようにしてある。この輸送管４に吸入したケーキを圧送ピストン８を前進させて輸送するようにしてある。また、吸入管２には油圧モーター９を連結したオーガー１０が内設してあり、ホッパ１の下部に設けた開口１ａに対設してある。ホッパ１に供給したケーキをホッパ１の下端の開口１ａから吸入管２に落下させ、オーガー１０を回転させて吸入管２の端部の吸入口３にケーキを移送するようにしてある。
【０００７】
図２に示すように、圧送ピストンシリンダー７にピストン作動弁１１が配設してあり、圧送ピストンシリンダー７のロッド側油室７ａとピストン作動弁１１を吸込回路ａで接続し、圧送ピストンシリンダー７のヘッド側油室７ｂとピストン作動弁１１の間にオーガー作動弁１２を介装して輸送回路ｂで接続してある。そして、油圧ポンプ１３から供給された作動油をピストン作動弁１１
から吸込回路ａを通って圧送ピストンシリンダー７のロッド側油室７ａに圧入し、輸送管４に内接した圧送ピストン８を後退させて、吸入管２の吸込口３からケーキを輸送管４の端部に吸引するようにしてある。また、ピストン作動弁１１を切換えて、油圧ポンプ１３からの作動油をオーガー作動弁１２に連通させ、輸送回路ｂからヘッド側油室７ｂに油を圧入して圧送ピストン８を前進させ、輸送管４に流入したケーキを押圧して輸送するようにしてある。なお、圧送ピストンシリンダー７のロッド側油室７ａから排出された油は、ピストン作動弁１１から排油回路ｃの圧抜き弁１４を通って油槽１５に排出される。
【０００８】
オーガー１０の油圧モーター９に連結した駆動回路ｄがオーガー作動弁１２に接続してあり、油圧ポンプ１３の作動油を圧送ピストンシリンダー７のロッド側油室７ａに圧入した時に、圧送ピストン８が後退して押出されるヘッド側油室７ｂの油を、オーガー作動弁１２を切換えて、駆動回路ｄから油圧モーター９に供給するようにしてある。圧送ピストンシリンダー７から排出される油の背圧を利用して、油圧モーター９でオーガー１０を回転させ、ホッパ１に貯留したケーキを開口１ａから吸入管２に落下させ、吸入口３に向ってケーキを移送させるようにしてあり、ホッパー１からのケーキの供給と、輸送管４へのケーキの吸入を連動させるケーキ圧送ポンプとなり、圧送ピストン８の後退時の排油を有効に活用できるものである。なお、油圧モーター９から排出された油は排油回路ｃの圧抜き弁１４を通って油槽１５に排出される。また、油圧モーター９に供給する余剰の油は駆動回路ｄから分岐させた分岐回路ｅの流量調整弁１６から抜出して、排油回路ｃから油槽１５に返送される。なお、符号１７は油圧ポンプ１３の駆動モーター、符号１８は油圧ポンプ１３の供給回路ｆに設けた逆止弁、符号１９は圧力計である。
【０００９】
図２に示すように、ピストン作動弁１１と油圧ポンプ１３を接続する供給回路ｆから吸入回路ｇが分岐してあり、吸入回路ｇが吸入弁シリンダー６に配設した吸入作動弁２０に接続してある。そして、油圧ポンプ１３からの作動油を圧送ピストンシリンダー７のロッド側油室７ａに圧入する時に、油圧ポンプ１３からの作動油を吸入回路ｇから吸入弁シリンダー６のロッド側油室６ｂに供給してピストンロッド６ａを収縮して吸入弁５を後退させ、吸入管２の吸入口３を開放して吸入口３からケーキを輸送管４に吸込むようにしてある。また、油圧ポンプ１３からの作動油を圧送ピストンシリンダー７のヘッド側油室７ｂに圧入して圧送ピストン８を前進させる時に、吸込弁シリンダー６の吸入作動弁２０を切換えて、吸入弁シリンダー６のヘッド側油室６ｃに油を圧入しピストンロッド６ａを前進させて吸入管２の吸入口３を吸入弁５で閉塞して輸送管に吸引したケーキを圧送ピストン８で輸送するようにしてある。
【００１０】
【発明の効果】
以上のように、この発明のケーキ圧送ポンプは、ケーキ圧送用の圧送ピストンシリンダーの背圧を利用して、オーガーの油圧モーターが駆動できるものである。即ち、従来のダブルシリンダー型の圧送ポンプは、バルブの開閉が頻繁となり耐久性に問題があった。また、従来のシングル型の圧送ポンプでは、圧送ポンプの作動が断続的となり、油圧の動力が増加して油圧タンクも大きくなる欠点があったものであるが、この発明にあっては、ホッパーの下方に設けた吸入管にオーガーを配設し、吸入・輸送用の圧送ピストンシリンダーのロッド側油室に油を圧入してケーキを吸入管の吸入口から輸送管に吸入する時に、圧送ピストンシリンダーのヘッド側油室の油をオーガー駆動用の油圧モーターに供給して、オーガーを回転させて吸入管のケーキを吸入口に移送するもので、圧送ピストンシリンダーの背圧を利用して油圧の有効活用が行なわれ、ホッパーからのケーキの供給と、輸送管へのケーキの吸込みを連動させるケーキ圧送ポンプとなるものである。そして、装置がコンパクトになり、油圧の動力が少なくて済み油圧タンクも小さくなるものである。
【図面の簡単な説明】
【図１】この発明に係るケーキ圧送ポンプの縦断側面図である。
【図２】ケーキ圧送ポンプに用いる油圧回路のフローチャートである。
【符号の説明】
１ ホッパー
２ 吸入管
３ 吸入口
４ 輸送管
５ 吸入弁
７ 圧送ピストンシリンダー
７ａ ロッド側油室
７ｂ ヘッド側油室
９ 油圧モーター
１０ オーガー
１１ ピストン作動弁
１２ オーガー作動弁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cake pump for sending sludge and the like, and more particularly, to a device for operating an auger for supplying cake using an oil discharge circuit of a pump piston cylinder.
[0002]
[Prior art]
Conventionally, as a piston-type pressure pump, for example, a double cylinder type is generally used as described in JP-A-62-147054. The drive of this double cylinder type hydraulic cylinder uses a hydraulic pump, but since oil is sent alternately to a pair of cylinders, it leads to reduction of hydraulic power and hydraulic tank. For example, as described in JP-A-7-332230, a suction valve is provided at the inlet of a hopper provided with an auger on the lower side, and suction / compression is applied to a transport pipe having the inlet opened. Also known is a single-type pressure-feed piston pump having a pressure-feed piston cylinder for use therein.
[0003]
[Problems to be solved by the invention]
The conventional double-cylinder type pressure pump has a problem in durability because the valve is frequently opened and closed at the outlet because the oil is alternately sent to the cylinder. In addition, the single type has a drawback in that the hydraulic power is increased and the hydraulic tank is increased due to the intermittent operation of the pressure pump. The cake pressure feed pump requires an auger, a paddle and the like for feeding cake to the pump. In the case of a single type, these are also intermittently operated. These drives are performed when the cylinder of the pressure pump after the cake is discharged is retracted and the cake is sucked into the transport pipe. The present invention relates to a cake pressure-feed pump that uses a back pressure when a pressure-feed piston cylinder moves backward or forward to drive a hydraulic motor of an auger to link cake supply from a hopper and suction of cake into a transport pipe. Is to provide.
[0004]
[Means for Solving the Problems]
The gist of the present invention is that a suction pipe provided below a hopper is connected to a cake transport pipe, and a suction valve disposed at a suction port of the suction pipe and a suction piston cylinder for suction and transport provided in the transport pipe are provided. In the pressure feed pump that transports the cake in an interlocked manner, a piston operation valve that switches the supply and discharge of oil to and from the rod side oil chamber of the pressure feed piston cylinder and the head side oil chamber is disposed, and the rod side oil chamber of the pressure feed piston cylinder An auger operating valve is interposed between the piston operating valves, and a hydraulic motor is connected to the auger installed in the suction pipe. The auger operating valve is connected to the hydraulic motor, and the piston operating valve is operated to perform pressure feeding. When pressurizing oil into the rod side oil chamber of the piston cylinder, the auger valve is switched to connect the head side oil chamber of the pressure feed piston cylinder to the hydraulic motor, By supplying chamber oil to the hydraulic motor rotates the auger, effective use can be performed hydraulic utilizing back pressure of the supply piston cylinder.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The cake pressure feed pump according to the present invention is configured as described above, and utilizes the back pressure of the head side oil chamber of the pressure feed piston cylinder when the pressure feed piston of the pressure feed piston cylinder provided at the end of the transport pipe is retracted. Then, the oil discharged from the head side oil chamber is supplied to the hydraulic motor, the auger is rotated, the cake stored in the hopper is dropped from the lower opening to the suction pipe, the auger is rotated, and the cake is directed toward the suction port. Transport. Then, the suction valve provided on the suction port of the suction pipe is moved away from the suction port, and at the same time, the suction piston of the suction / transport piston cylinder disposed at the end of the transport pipe is retracted to open the suction pipe. The cake is sucked into the transport pipe from the inlet of the pipe. Next, the suction pipe is closed by the suction valve, and the pressure feeding piston is advanced to feed the cake sucked into the transport pipe. This operation is repeated continuously to transport the cake.
[0006]
【Example】
The cake pressure pump according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows a pressure pump, in which a suction pipe 2 is connected to an opening 1a provided in a lower portion of a hopper 1, and a suction port of the suction pipe 2 is provided. 3 is connected to the peripheral wall of the cake transport pipe 4. A suction valve 5 is provided at the suction port 3 of the suction pipe 2, and a piston rod 6 a of the suction valve cylinder 6 is connected through the transport pipe 4. The suction rod 5 is moved by expanding and contracting the piston rod 6 a of the suction valve cylinder 6 to open and close the suction port 3. A suction piston cylinder 7 for suction / transport is disposed at the end of the transport pipe 4 to which the suction pipe 2 is connected. The suction pipe 5 is opened by retreating the pressure piston 8 of the pressure piston cylinder 7. The cake is sucked into the end of the transport pipe 4 from the second suction port 3. The cake sucked into the transport pipe 4 is transported by moving the pumping piston 8 forward. In addition, an auger 10 connected to a hydraulic motor 9 is provided in the suction pipe 2 and is opposed to an opening 1 a provided in the lower portion of the hopper 1. The cake supplied to the hopper 1 is dropped from the opening 1a at the lower end of the hopper 1 to the suction pipe 2, and the auger 10 is rotated to transfer the cake to the suction port 3 at the end of the suction pipe 2.
[0007]
As shown in FIG. 2, a piston operating valve 11 is disposed in the pressure feeding piston cylinder 7, and the rod side oil chamber 7 a of the pressure feeding piston cylinder 7 and the piston operating valve 11 are connected by a suction circuit a, and the pressure feeding piston cylinder 7. An auger operating valve 12 is interposed between the head side oil chamber 7b and the piston operating valve 11 by a transport circuit b. Then, the hydraulic oil supplied from the hydraulic pump 13 is used as the piston operating valve 11.
The suction pipe a is pressed into the rod side oil chamber 7a of the pressure feed piston cylinder 7 and the pressure feed piston 8 inscribed in the transport pipe 4 is moved backward, so that the cake is transferred from the suction port 3 of the suction pipe 2 to the transport pipe 4 The end is sucked. Further, the piston operating valve 11 is switched so that the operating oil from the hydraulic pump 13 is communicated with the auger operating valve 12, the oil is press-fitted into the head side oil chamber 7b from the transport circuit b, and the pumping piston 8 is advanced, and the transport pipe The cake that has flowed into 4 is pressed and transported. The oil discharged from the rod side oil chamber 7a of the pressure feed piston cylinder 7 is discharged from the piston operating valve 11 through the pressure release valve 14 of the oil discharge circuit c to the oil tank 15.
[0008]
A drive circuit d connected to the hydraulic motor 9 of the auger 10 is connected to the auger operating valve 12, and when the hydraulic oil of the hydraulic pump 13 is press-fitted into the rod side oil chamber 7 a of the pressure-feed piston cylinder 7, the pressure-feed piston 8 moves backward. Then, the oil in the head side oil chamber 7b to be pushed out is supplied to the hydraulic motor 9 from the drive circuit d by switching the auger operating valve 12. Using the back pressure of the oil discharged from the pressure-feed piston cylinder 7, the auger 10 is rotated by the hydraulic motor 9, the cake stored in the hopper 1 is dropped from the opening 1 a to the suction pipe 2, and directed toward the suction port 3. The cake is transported and becomes a cake pressure feed pump that interlocks the supply of cake from the hopper 1 and the suction of the cake into the transport pipe 4, and can effectively utilize the drain oil when the pressure feed piston 8 moves backward. is there. The oil discharged from the hydraulic motor 9 is discharged to the oil tank 15 through the pressure relief valve 14 of the oil discharge circuit c. Further, excess oil supplied to the hydraulic motor 9 is extracted from the flow rate adjustment valve 16 of the branch circuit e branched from the drive circuit d, and returned to the oil tank 15 from the oil discharge circuit c. Reference numeral 17 is a drive motor of the hydraulic pump 13, reference numeral 18 is a check valve provided in the supply circuit f of the hydraulic pump 13, and reference numeral 19 is a pressure gauge.
[0009]
As shown in FIG. 2, a suction circuit g is branched from a supply circuit f that connects the piston operating valve 11 and the hydraulic pump 13, and the suction circuit g is connected to a suction operating valve 20 disposed in the suction valve cylinder 6. It is. When hydraulic oil from the hydraulic pump 13 is press-fitted into the rod-side oil chamber 7a of the pressure-feed piston cylinder 7, the hydraulic oil from the hydraulic pump 13 is supplied from the suction circuit g to the rod-side oil chamber 6b of the intake valve cylinder 6. Then, the piston rod 6 a is contracted to retract the suction valve 5, the suction port 3 of the suction pipe 2 is opened, and the cake is sucked into the transport pipe 4 from the suction port 3. Further, when the hydraulic oil from the hydraulic pump 13 is press-fitted into the head-side oil chamber 7 b of the pressure-feed piston cylinder 7 and the pressure-feed piston 8 is advanced, the suction valve 20 of the suction valve cylinder 6 is switched to change the suction valve cylinder 6. Oil is press-fitted into the head side oil chamber 6c, the piston rod 6a is advanced, the suction port 3 of the suction pipe 2 is closed by the suction valve 5, and the cake sucked into the transport pipe is transported by the pressure feed piston 8.
[0010]
【The invention's effect】
As described above, the cake pressure-feed pump of the present invention can drive the auger hydraulic motor by utilizing the back pressure of the pressure-feed piston cylinder for cake pressure-feed. That is, the conventional double cylinder type pressure pump has a problem in durability because the valve is frequently opened and closed. In addition, in the conventional single type pump, the operation of the pump is intermittent, and the hydraulic power is increased and the hydraulic tank is enlarged. An auger is installed in the suction pipe provided below, and when the cake is sucked into the transport pipe from the suction port of the suction pipe by pressing the oil into the rod side oil chamber of the suction piston cylinder for suction and transport, the pump piston cylinder The oil in the head side oil chamber is supplied to the hydraulic motor for auger drive, and the auger is rotated to transfer the cake of the suction pipe to the suction port. It will be used as a cake pump that links the supply of cake from the hopper and the suction of the cake into the transport pipe. In addition, the apparatus becomes compact, the hydraulic power is small, and the hydraulic tank is small.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of a cake pump according to the present invention.
FIG. 2 is a flowchart of a hydraulic circuit used for a cake pressure feed pump.
[Explanation of symbols]
1 Hopper 2 Suction Pipe 3 Suction Port 4 Transport Pipe 5 Suction Valve 7 Pumping Piston Cylinder 7a Rod Side Oil Chamber 7b Head Side Oil Chamber 9 Hydraulic Motor 10 Auger 11 Piston Actuation Valve 12 Auger Actuation Valve

Claims (1)

ホッパー（１）の下方に設けた吸入管（２）をケーキの輸送管（４）に連結し、吸入管（２）の吸入口（３）に配設した吸入弁（５）と輸送管（４）に内設した吸入・輸送用の圧送ピストンシリンダー（７）を連動させてケーキを輸送する圧送ポンプにおいて、上記圧送ピストンシリンダー（７）のロッド側油室（７ａ）とヘッド側油室（７ｂ）への油の給排を切換えるピストン作動弁（１１）を配設し、圧送ピストンシリンダー（７）のロッド側油室（７ａ）とピストン作動弁（１１）の間にオーガー作動弁（１２）を介装させると共に、上記吸入管（２）に内設したオーガー（１０）に油圧モーター（９）を連結し、この油圧モーター（９）にオーガー作動弁（１２）を接続して、ピストン作動弁（１１）を操作して圧送ピストンシリンダー（７）のロッド側油室（７ａ）に油を圧入する時に、オーガー作動弁（１２）を切換えて圧送ピストンシリンダー（７）のヘッド側油室（７ｂ）を油圧モーター（９）に連通して、ヘッド側油室（７ｂ）の油を油圧モーター（９）に供給してオーガー（１０）を回転させることを特徴とするケーキ圧送ポンプ。A suction pipe (2) provided below the hopper (1) is connected to a cake transport pipe (4), and a suction valve (5) and a transport pipe (located in the suction port (3) of the suction pipe (2) ( 4) In the pressure pump which transports the cake by interlocking the suction / transport piston cylinder (7) provided in the interior, the rod side oil chamber (7a) and the head side oil chamber (7a) of the pressure piston cylinder (7) 7b) is provided with a piston actuating valve (11) for switching between oil supply and discharge, and an auger actuating valve (12) is provided between the rod side oil chamber (7a) of the pressure feed piston cylinder (7) and the piston actuating valve (11). ), A hydraulic motor (9) is connected to the auger (10) provided in the suction pipe (2), and an auger operating valve (12) is connected to the hydraulic motor (9), and the piston Operate the actuating valve (11) to press feed piston cylinder -When oil is pressed into the rod side oil chamber (7a) of (7), the auger operating valve (12) is switched to connect the head side oil chamber (7b) of the pressure feed piston cylinder (7) to the hydraulic motor (9). The cake pressure feed pump is characterized in that the oil in the head side oil chamber (7b) is supplied to the hydraulic motor (9) to rotate the auger (10).
JP2001152250A 2001-05-22 2001-05-22 Cake pump Expired - Fee Related JP3856097B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001152250A JP3856097B2 (en) 2001-05-22 2001-05-22 Cake pump

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Application Number Priority Date Filing Date Title
JP2001152250A JP3856097B2 (en) 2001-05-22 2001-05-22 Cake pump

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JP3856097B2 true JP3856097B2 (en) 2006-12-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4971600B2 (en) * 2005-06-27 2012-07-11 大平洋機工株式会社 Pipe transport method and transport device for dehydrated cake
JP4924911B2 (en) * 2009-11-18 2012-04-25 満男 大見 Fluid pressure feeder
CN104632568B (en) * 2013-11-08 2017-01-04 中国石油天然气股份有限公司 Continuous oil sludge conveying method and device for single-cylinder bidirectional piston pump
CN104612932A (en) * 2015-01-28 2015-05-13 宜兴市宙斯泵业有限公司 Mud conveying pump
CN104612931A (en) * 2015-01-28 2015-05-13 宜兴市宙斯泵业有限公司 Mud conveying pump
CN107013515B (en) * 2016-01-28 2018-08-03 福建龙马环卫装备股份有限公司 A kind of hydraulic system of dustbin hopper stroke latter end buffering

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