JPS63133036A - Sampling of sludge - Google Patents

Sampling of sludge

Info

Publication number
JPS63133036A
JPS63133036A JP27868586A JP27868586A JPS63133036A JP S63133036 A JPS63133036 A JP S63133036A JP 27868586 A JP27868586 A JP 27868586A JP 27868586 A JP27868586 A JP 27868586A JP S63133036 A JPS63133036 A JP S63133036A
Authority
JP
Japan
Prior art keywords
sampling
sludge
pipe
tube
pump
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.)
Granted
Application number
JP27868586A
Other languages
Japanese (ja)
Other versions
JPH0577257B2 (en
Inventor
Yoshio Maeda
前田 吉雄
Koichi Yamamoto
耕一 山本
Masaaki Osato
大里 雅昭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebara Corp
Original Assignee
Ebara Infilco Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP27868586A priority Critical patent/JPS63133036A/en
Publication of JPS63133036A publication Critical patent/JPS63133036A/en
Publication of JPH0577257B2 publication Critical patent/JPH0577257B2/ja
Granted legal-status Critical Current

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  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE:To eliminate or prevent clogging of a sampling pipeline with a foreign matter, by fluidizing a sludge in the sampling pipe for introducing the sludge from a sludge piping by reversing the flow thereof properly. CONSTITUTION:Both ends of a sampling tube 2 are connected to a main sludge pipe 1 through which a sludge slurry is transferred through valves 3 and 4 and a sampling mechanism 5 is arranged halfway in the sampling tube 2. A pump 6 is provided halfway the sampling tube 2 to make the flow of the sludge reversible and is operated at a proper point of time. With the operation of the pump 6, the flow is reversed from the direction in the introduction of the sludge slurry into the sampling tube 2; depending on the case, alternate reversion is performed to remove fiber entangled in the sampling tube 2 and other foreign matters, thereby eliminating clogging of the tube or preventing growth of foreign matters in the tube.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、汚泥配管中を移送される繊維その他の種々の
異物を含む汚泥スラリの必要最少量を円滑にサンプリン
グする方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for smoothly sampling the required minimum amount of sludge slurry containing fibers and various other foreign substances that is transferred through a sludge pipe.

〔従来の技術〕[Conventional technology]

汚泥配管中を移送される汚泥スラリの濃度を測定するに
は、配管中に超音波濃度計などを設けて測定するのが一
般的であったが、このような測定では汚泥中に含まれる
気泡や異物等の影響によってその測定値にバラツキが生
し、汚泥の性状によっては大きな誤差が生ずる欠点があ
り、汚泥濃度検知の信φ■性に問題を残していた。
In order to measure the concentration of sludge slurry transferred through sludge piping, it was common practice to install an ultrasonic concentration meter in the piping. The measurement values vary due to the influence of dirt and foreign matter, and large errors may occur depending on the properties of the sludge, leaving problems with the reliability of sludge concentration detection.

このような問題点を解決するために、汚泥スラリか移送
される汚泥本管に小径のサンプリング管を分岐し、この
サンプリング管内に汚泥スラリを導いてサンプリング管
途中からサンプリングを行い、精度の高い汚泥濃度測定
を行うlη泥サンプリング装置が種々考案され、実施さ
れつつある。
In order to solve these problems, a small-diameter sampling pipe is branched into the sludge main pipe into which the sludge slurry is transferred, and the sludge slurry is guided into this sampling pipe and sampling is performed from the middle of the sampling pipe to obtain highly accurate sludge. Various lη mud sampling devices for measuring concentration have been devised and are being implemented.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

下水汚泥等には繊維その他の種々の異物が含まれており
、これらの異物は移送される途中の管路の突起部や曲管
部でからみつき易く、一旦からみつくと次々と流れてく
る異物によって級数的に生長してついには管路を閉塞し
、システムの運転を妨げるようになる。特に、汚泥本管
より分岐したサンプリング管は小径であるために閉塞し
易く、その都度サンプリング装置を一旦システムから切
り離し、配管を分解して閉塞物を取り除く必要があった
。しかしながら、特にサンプリングが自動化されている
場合には、システム全体の運転を妨げることになり問題
となっていた。
Sewage sludge, etc. contains fibers and various other foreign substances, and these foreign substances tend to get tangled in the protrusions and curved parts of pipes during transport. Eventually, they can grow and block pipes, interfering with system operation. In particular, the sampling pipe branched from the sludge main pipe has a small diameter and is easily clogged, and each time it occurs, it is necessary to temporarily disconnect the sampling device from the system, disassemble the pipe, and remove the clogged object. However, especially when sampling is automated, this has been a problem as it interferes with the operation of the entire system.

また、サンプリング装置として、サンプリング管中にサ
ンプリングロッドを差し込んでサンプリングを行う方式
のものでは、サンプリングロフトを差し込んだままにし
ておくと、異物がサンプリングロッドにからみつき、サ
ンプリングロッドを引き抜くことができなくなるという
問題点もあった。
In addition, with sampling devices that perform sampling by inserting a sampling rod into a sampling tube, if the sampling loft is left inserted, foreign matter will become entangled with the sampling rod, making it impossible to pull out the sampling rod. There were also problems.

本発明は、このようなサンプリング管の閉塞やサンプリ
ングロッドへの異物のからみつきなどを解除あるいは防
止し、システムの自動化をも円滑たらしめることを目的
とするものである。
The object of the present invention is to eliminate or prevent such clogging of the sampling tube and the entanglement of foreign matter with the sampling rod, and also to facilitate the automation of the system.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は、汚泥が移送される汚泥配管にサンプリング管
の両端を接続し、該サンプリング管途中にて汚泥をサン
プリングする方法において、前記サンプリング管途中に
核管路内に正逆流れを起こさせるポンプを介在させ、該
ポンプにて管路内で適時汚泥に正方向流れと逆方向流れ
を与えることを特徴とする汚泥のサンプリング方法を提
供するものである。
The present invention provides a method in which both ends of a sampling pipe are connected to a sludge pipe through which sludge is transferred, and sludge is sampled in the middle of the sampling pipe. The present invention provides a sludge sampling method characterized in that the sludge is provided with a pump and the pump is used to apply a forward flow and a reverse flow to the sludge at appropriate times within a pipe.

〔実施例〕〔Example〕

本発明の一実施態様を図面を参照しながら説明すれば、
第1図のように、汚泥スラリか移送される汚泥本管lに
、サンプリング管2の両端部をそれぞれ弁3.4を介し
て接続し、サンプリング管2の途中にサンプリング機構
5を配備した汚泥サンプリング装置において、サンプリ
ング管2の途中にさらに汚泥の流れ方向を正逆可能たら
しめるポンプ6を設け、適当な時にポンプ6を運転する
An embodiment of the present invention will be described with reference to the drawings.
As shown in Fig. 1, both ends of the sampling pipe 2 are connected to the sludge main pipe l through which the sludge slurry is transferred through valves 3.4, and a sampling mechanism 5 is installed in the middle of the sampling pipe 2. In the sampling device, a pump 6 is further provided in the middle of the sampling pipe 2 to enable the flow direction of the sludge to be reversed forward or backward, and the pump 6 is operated at an appropriate time.

ポンプ6の運転は、サンプリング管2内に汚泥スラリを
導いた時と逆方向流れを与えるようにし、場合によって
は正逆交互に流れ方向を変えることによって、サンプリ
ング管2内にからみついている繊維その他の異物を除去
し、管内の閉塞を解除あるいは管内異物の生長を防止す
る。
The pump 6 is operated so as to give a flow in the opposite direction to that when introducing the sludge slurry into the sampling pipe 2, and in some cases, by changing the flow direction alternately between forward and reverse, fibers and other objects entangled in the sampling pipe 2 can be removed. Removes foreign matter from the tube, releases the blockage inside the tube, or prevents the growth of foreign matter inside the tube.

なお、サンプリング時に、後述するようにサンプリング
管2中にサンプリングロッド9を差し込んでサンプリン
グするような方式を採用する場合には、ポンプ6が運転
中で管2内に汚泥が流動している時にサンプリングロッ
ド9を差し込むと、汚泥中の異物がサンプリングロッド
9にからみついてロッドを引き抜くことができなくなる
ので、サンプリング直前にポンプ6を停止してからサン
プリングを行い、サンプリング皿7にサンプル汚泥を移
すようにする。
In addition, when sampling is performed by inserting a sampling rod 9 into the sampling pipe 2 as described later, sampling is performed while the pump 6 is in operation and sludge is flowing in the pipe 2. If the rod 9 is inserted, foreign matter in the sludge will become entangled with the sampling rod 9 and the rod will not be able to be pulled out. Therefore, stop the pump 6 immediately before sampling, perform sampling, and transfer the sample sludge to the sampling dish 7. do.

さらに、サンプリング管2中にサンプリングロッド9を
差し込んでサンプリングする場合の例について詳述すれ
ば次の通りである。
Further, an example of sampling by inserting the sampling rod 9 into the sampling tube 2 will be described in detail as follows.

■ 第2図は、サンプリング待機状態で、サンプリング
機構5中の採取用シリンダ8に連結されたサンプリング
ロッド9の先端がサンプリング管2の入口に接している
状態を示しており、この状態でポンプ6を運転してサン
プリング管2内に汚泥スラリの流れを与え、一定時間(
少なくとも、サンプリング管2中の汚泥スラリか前回測
定時のものと全量入れ替わる時間)経過した後ポンプ6
を停止する。
2 shows a state in which the tip of the sampling rod 9 connected to the sampling cylinder 8 in the sampling mechanism 5 is in contact with the inlet of the sampling tube 2 in the sampling standby state, and in this state, the pump 6 was operated to provide a flow of sludge slurry into the sampling tube 2, and for a certain period of time (
After at least the time required for the sludge slurry in the sampling pipe 2 to be completely replaced with that from the previous measurement, the pump 6
stop.

■ ポンプ6停止直後、第3図のように、サンプリング
ロッド9を採取用シリンダ8によってサンプリング管2
内に差し込み、サンプリングロッド9の先端付近に設け
られたサンプリング孔10に汚泥スラリを満たす。
■ Immediately after the pump 6 stops, as shown in Figure 3, the sampling rod 9 is inserted into the sampling tube 2 by the sampling cylinder 8.
The sampling hole 10 provided near the tip of the sampling rod 9 is filled with sludge slurry.

■ 第4図のように、採取用シリンダ8によってサンプ
リングロッド9を一杯に引き抜いてサンプリング孔10
とサンプル取出孔11とを一致させ、押出用シリンダ1
2によってサンプル押出ロッド13をサンプリング孔1
oに差し込み、満たされているサンプル汚泥を押し出し
、サンプル取出孔11からサンプリング皿7に移す。
■ As shown in Figure 4, pull out the sampling rod 9 fully using the sampling cylinder 8, and then open the sampling hole 10.
Align the sample extraction hole 11 with the extrusion cylinder 1.
2 through the sample extrusion rod 13 through the sampling hole 1
o, push out the filled sample sludge, and transfer it from the sample extraction hole 11 to the sampling dish 7.

■ サンプル押出ロッド13及びサンプリングロッド9
を第2図の待機位1に戻す。
■ Sample extrusion rod 13 and sampling rod 9
Return to standby position 1 in Figure 2.

■ ポンプ6を一定時間(通常30秒程度)逆転させ、
サンプリング管2中の汚泥スラリを逆方向に流して管路
中にからみついたりして滞留している異物を除去し、次
のサンプリング時まで待機する。
■ Reverse the pump 6 for a certain period of time (usually about 30 seconds),
The sludge slurry in the sampling pipe 2 is flowed in the opposite direction to remove foreign matter entangled or staying in the pipe, and waits until the next sampling time.

このようにして、サンプリング管2内の閉塞を解除ある
いは防止して、常に円滑、正確な汚泥のサンプリングを
行い、自動化の場合にはポンプ6を正逆自動的に運転さ
せて管路の閉塞を未然に防止し、システムの安定した運
転と省力化を図ることができる。
In this way, the blockage in the sampling pipe 2 is released or prevented, and sludge sampling is always performed smoothly and accurately.In the case of automation, the pump 6 is automatically operated in forward and reverse directions to prevent blockage of the pipe. It is possible to prevent such occurrences and achieve stable system operation and labor savings.

〔発明の効果〕〔Effect of the invention〕

以上述べたように本発明によれば、汚泥配管から汚泥を
導くサンプリング管内の汚泥の流れ方向を適宜逆方向に
変えて流動させることによって、サンプリング管路の異
物による閉塞を解除し、あるいは閉塞を未然に防止する
ことができるから、運転管理が著しく容易となり、シス
テムの自動化を円滑たらしめ、さらにポンプ、サンプリ
ング配管ともに小口径のものを使用することができて経
済的効果も大きいものである。
As described above, according to the present invention, by appropriately changing the flow direction of sludge in the sampling pipe that leads the sludge from the sludge pipe to the opposite direction and causing the sludge to flow, the blockage caused by foreign substances in the sampling pipe is released or the blockage is removed. Since this can be prevented, operational management becomes significantly easier, system automation becomes smoother, and small-diameter pumps and sampling piping can be used, which is highly economical.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施態様を示し、第1図は全体の説明
図、第2〜4図は作動順序を示す詳細説明図である。 1・・・汚泥本管、2・・・サンプリング管、3.4・
・・弁、5・・・サンプリング機構、6・・・ポンプ、
7・・・サンプリング皿、8・・・採取用シリンダ、9
川サンプリングロンド、10・・・サンプリング孔、1
1・・・サンプル取出孔、12・・・押出用シリンダ、
13・・・サンプル押出ロッド。
The drawings show one embodiment of the present invention, with FIG. 1 being an overall explanatory view, and FIGS. 2 to 4 being detailed explanatory views showing the operating sequence. 1...Sludge main pipe, 2...Sampling pipe, 3.4.
...Valve, 5...Sampling mechanism, 6...Pump,
7... Sampling dish, 8... Sampling cylinder, 9
River sampling rondo, 10... sampling hole, 1
1... Sample extraction hole, 12... Extrusion cylinder,
13...Sample extrusion rod.

Claims (1)

【特許請求の範囲】[Claims] (1)汚泥が移送される汚泥配管にサンプリング管の両
端を接続し、該サンプリング管途中にて汚泥をサンプリ
ングする方法において、前記サンプリング管途中に該管
路内に正逆流れを起こさせるポンプを介在させ、該ポン
プにて管路内で適時汚泥に正方向流れと逆方向流れを与
えることを特徴とする汚泥のサンプリング方法。
(1) In a method in which both ends of a sampling pipe are connected to a sludge pipe through which sludge is transferred, and sludge is sampled in the middle of the sampling pipe, a pump is provided in the middle of the sampling pipe to cause forward and reverse flow in the pipe. 1. A method for sampling sludge, characterized in that the sludge is interposed and the pump is used to apply a forward flow and a reverse flow to the sludge at appropriate times within a pipe.
JP27868586A 1986-11-25 1986-11-25 Sampling of sludge Granted JPS63133036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27868586A JPS63133036A (en) 1986-11-25 1986-11-25 Sampling of sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27868586A JPS63133036A (en) 1986-11-25 1986-11-25 Sampling of sludge

Publications (2)

Publication Number Publication Date
JPS63133036A true JPS63133036A (en) 1988-06-04
JPH0577257B2 JPH0577257B2 (en) 1993-10-26

Family

ID=17600743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27868586A Granted JPS63133036A (en) 1986-11-25 1986-11-25 Sampling of sludge

Country Status (1)

Country Link
JP (1) JPS63133036A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111474000A (en) * 2020-05-24 2020-07-31 南京南测仪器技术有限公司 Sewer sludge sampling device and vehicle moving method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121690A (en) * 1977-03-31 1978-10-24 Mitsubishi Chem Ind Sampler for high viscosity fluids
JPS5763246U (en) * 1980-10-01 1982-04-15
JPS61153542A (en) * 1984-12-26 1986-07-12 Mitsubishi Paper Mills Ltd Drawing method of filtrate
JPS61147953U (en) * 1985-03-06 1986-09-12

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121690A (en) * 1977-03-31 1978-10-24 Mitsubishi Chem Ind Sampler for high viscosity fluids
JPS5763246U (en) * 1980-10-01 1982-04-15
JPS61153542A (en) * 1984-12-26 1986-07-12 Mitsubishi Paper Mills Ltd Drawing method of filtrate
JPS61147953U (en) * 1985-03-06 1986-09-12

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111474000A (en) * 2020-05-24 2020-07-31 南京南测仪器技术有限公司 Sewer sludge sampling device and vehicle moving method
CN111474000B (en) * 2020-05-24 2022-10-25 南京南测仪器技术有限公司 Sewer sludge sampling device and method

Also Published As

Publication number Publication date
JPH0577257B2 (en) 1993-10-26

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