JPH06307A - Suspension filteration device - Google Patents

Suspension filteration device

Info

Publication number
JPH06307A
JPH06307A JP4153389A JP15338992A JPH06307A JP H06307 A JPH06307 A JP H06307A JP 4153389 A JP4153389 A JP 4153389A JP 15338992 A JP15338992 A JP 15338992A JP H06307 A JPH06307 A JP H06307A
Authority
JP
Japan
Prior art keywords
liquid
particles
settling tank
settling
precipitation
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
JP4153389A
Other languages
Japanese (ja)
Other versions
JP2518996B2 (en
Inventor
Carmelo Onandia-Alberdi
オナンディア アルベルディ カルメロ
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.)
Ona Electro Erosion SA
Original Assignee
Ona Electro Erosion SA
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
Priority to FR9206337A priority Critical patent/FR2691076B1/en
Priority claimed from GB9210413A external-priority patent/GB2266849B/en
Priority to ITMI921264A priority patent/IT1255101B/en
Priority to CH01794/92A priority patent/CH689348A5/en
Application filed by Ona Electro Erosion SA filed Critical Ona Electro Erosion SA
Priority to JP4153389A priority patent/JP2518996B2/en
Priority to DE4223832A priority patent/DE4223832A1/en
Publication of JPH06307A publication Critical patent/JPH06307A/en
Application granted granted Critical
Publication of JP2518996B2 publication Critical patent/JP2518996B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2444—Discharge mechanisms for the classified liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/307—Passive control mechanisms without external energy, e.g. using a float
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Floating Material (AREA)

Abstract

(57)【要約】 【目的】 本発明の目的は、懸濁液として粒子を有した
液体を濾過するための装置において、液体が第１の沈澱
をなすまで時間を置くことにより、沈澱槽の上部から浄
化された液体をある速度で排出することが可能な手段を
具備した濾過装置を提供することにある。 【構成】 上述の目的を達成するために本発明による濾
過装置は、液体を分配するための弁装置と、フィルタ
と、沈澱槽を具備した濾過装置において、沈降速度の減
少する様々な相で懸濁液の粒子が沈澱し、前記濾過装置
は、前記沈澱槽の上部から液体が排出されると共に、該
沈澱槽内の沈降する液体に追従する手段を具備し、該手
段は、沈澱速度が最大となる沈澱相に相当する時間の少
なくとも一部の時間停止し、次いで再び始動するように
構成されており、そして粒子が自由に沈降する領域
（Ａ）の沈澱速度（ＶA ）に近い速度で前記沈澱槽から
排出される構成とした。 (57) [Summary] [Objective] The object of the present invention is to provide a device for filtering a liquid having particles as a suspension, by allowing time for the liquid to form a first precipitation, It is an object of the present invention to provide a filtering device equipped with means capable of discharging purified liquid from an upper portion at a certain speed. In order to achieve the above-mentioned object, a filtration device according to the present invention comprises a valve device for distributing a liquid, a filter, and a settling tank. The particles of the turbid liquid settle, and the filtering device comprises means for discharging the liquid from the upper part of the settling tank and following the settling liquid in the settling tank, the means having a maximum settling rate. Is configured to stop for at least a portion of the time corresponding to the precipitation phase, and then restart, and at a rate close to the precipitation rate (V A ) of the area (A) in which the particles are free to settle. It was configured to be discharged from the settling tank.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は濾過装置に関し、特に液
体を分配するための弁装置と、フィルタと、沈澱槽とを
具備して構成され、懸濁液として粒子を有した液体を濾
過するための装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtering device, and more particularly to a filtering device for distributing a liquid, a filter and a settling tank for filtering a liquid having particles as a suspension. For equipment.

【０００２】[0002]

【従来の技術】機械において全ての要素は、結果が大き
くなれば大きくなり、要素が大きくなれば結果も大きく
なるという関係を有している。工作機械は、冷却水等の
冷却液を使用するが、ドリルは特別な液体、例えば石油
や放電加工機における誘電体等の液体を使用する。そし
てこの液体は加工屑を除去するために再生され、従って
機械は濾過装置を必要とする。濾過装置を支配する１つ
の要因は、沈澱槽ないで次に使用される前に、懸濁液内
の粒子が沈澱するために必要な時間である。2. Description of the Related Art In a machine, all the elements have a relation that the larger the result, the larger the result, and the larger the element, the larger the result. Machine tools use cooling liquids such as cooling water, while drills use special liquids such as oil and dielectrics in electrical discharge machines. This liquid is then regenerated to remove the processing debris, so the machine requires a filtration device. One factor that governs the filtration system is the time required for the particles in the suspension to settle before subsequent use in the settling tank.

【０００３】[0003]

【発明が解決しようとする課題】本発明は以下のような
実験的な発見に基づいている。すなわち、液体が第１の
沈澱をなすまで時間を置くことにより、沈澱槽の上部か
ら浄化された液体をある速度で排出することが可能とな
り、その結果、従来の方に比べて液体を全て排出する時
間が短縮されるというものである。本発明は、上述の発
見を実現するための手段を提供することにある。The present invention is based on the following experimental findings. That is, it is possible to discharge the purified liquid from the upper part of the settling tank at a certain speed by allowing time for the liquid to undergo the first precipitation, and as a result, it is possible to discharge all the liquid as compared with the conventional method. The time to do is shortened. The present invention resides in the provision of means for implementing the above discovery.

【０００４】[0004]

【課題を解決するための手段】上述の目的を達成するた
めに本発明では、液体を分配するための弁装置と、フィ
ルタと、沈澱槽を具備し、懸濁液として粒子を有した液
体を濾過するための装置において、沈降速度の減少する
様々な相で懸濁液の粒子が沈澱し、そして、前記濾過装
置は、前記沈澱槽の上部から液体を排出すると共に、該
沈澱槽内の沈降する液体に追従する手段を具備し、該手
段は、沈澱速度が最大となる沈澱相に相当する時間の少
なくとも一部の時間停止し、次いで再び始動するように
構成されており、そして粒子が自由に沈降する領域の沈
澱速度に近い速度で前記沈澱槽から排出されることを特
徴とする濾過装置が提供される。更に、本発明の第２の
特徴によれば、前記手段は、１本のパイプを具備してお
り、前記パイプは、液面近傍に浸された吸引口を有し、
該吸引口を同じ高さに保持するフロートに固定されてい
る。In order to achieve the above object, the present invention comprises a valve device for distributing a liquid, a filter, and a settling tank, and a liquid having particles as a suspension is provided. In an apparatus for filtering, particles of suspension are precipitated in various phases with decreasing settling rate, and the filtering apparatus discharges liquid from the upper part of the settling tank and settles in the settling tank. Means for following the liquid, which is arranged to stop and then start again for at least part of the time corresponding to the precipitation phase at which the precipitation rate is maximal, and the particles are free to A filtration device is provided, wherein the filtration device is discharged from the settling tank at a rate close to the settling rate of the area settling in the area. Further, according to the second aspect of the present invention, the means includes one pipe, and the pipe has a suction port immersed near the liquid surface,
It is fixed to a float that holds the suction port at the same height.

【０００５】[0005]

【実施例】図１を参照すると工作機械１において冷却
液、或いは誘電体等として使用される液体は汚染され、
そしてパイプ２を介して汚染された液体（この液体は懸
濁液として粒子を含んでいる）のためのタンク３に送ら
れる この液体はフィルタ４により濾過される。そして、処理
工程のあらゆる段階において汚染された液体を、或いは
汚染されていない液体を前記工作機械１または前記タン
ク３、沈澱槽６に分配するために弁装置５が具備されて
いる。前記沈澱槽６において懸濁液の粒子は沈澱して、
液体は浄化され再使用可能な状態となる。沈澱による分
離作用は重力により達成され、粒子は液体の密度や粘
性、或いは粒子のサイズや形状、密度により決定される
速度で沈降する。沈澱過程においてより良い効率を得る
ためには、重く大きな粒子が必要となる。粒子が軽く小
さい場合には、予め凝集させなければならない。固相の
密度が高い場合には液体の見掛け比重が増加するために
沈澱作用が遅滞する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a coolant used in a machine tool 1 or a liquid used as a dielectric or the like is contaminated.
It is then sent via a pipe 2 to a tank 3 for the contaminated liquid, which liquid contains particles in suspension, which is filtered by a filter 4. A valve device 5 is provided for distributing the contaminated liquid or the uncontaminated liquid to the machine tool 1 or the tank 3 and the precipitation tank 6 at every stage of the treatment process. In the settling tank 6, the particles of the suspension are settled,
The liquid is purified and ready for reuse. Separation by precipitation is achieved by gravity, and the particles settle at a rate determined by the density and viscosity of the liquid or the size, shape and density of the particles. Heavy and large particles are required to obtain better efficiency in the precipitation process. If the particles are light and small, they must be agglomerated beforehand. When the density of the solid phase is high, the apparent specific gravity of the liquid increases and the precipitation action is delayed.

【０００６】沈澱過程のあらゆる段階を図２に示す。図
２においてＹ軸は粒子を有していない領域の高さを表し
ており、それに対してＸ軸は時間を表している。一定の
時間が経過すると、上部に自由表面（この侍従表面は水
面と同様であり、重力と特定の範疇に入る粒子間の相互
作用とにより決定される）が形成され、該自由表面の下
側にいおて（初期の濃度が非常に高く無い場合には）粒
子は自由に沈澱しＡ、そしてこの自由表面の上側では液
体は浄化されている。沈澱槽の底部近傍には沈澱作用の
遅滞している領域Ｂが存在し、そして底部には沈澱物が
圧縮される高濃度領域Ｃが存在する。上記自由表面は、
それが圧縮領域なるまで次第に沈降してゆく。沈澱速度
は漸次的に遅くなる。前記沈澱槽からパイプ７を介して
液体を吸引し使用する場合（図１）には、実際上全ての
液体が浄化されるまで待機しなければならず、それは多
くの時間がかかり（図２においてＵ１）、そして前記フ
ィルタ４を含めた設備の操作に影響される。そのこと
は、前記沈澱槽６を再び洗浄する前に汚れを吸収するた
めの連続的な時間Ｕ１の最小容量を有していると看做さ
れる。All the stages of the precipitation process are shown in FIG. In FIG. 2, the Y-axis represents the height of the region without particles, while the X-axis represents time. After a certain time, a free surface is formed on the upper side (this compliant surface is similar to the water surface and is determined by gravity and the interaction between particles falling in a specific category), and the lower side of the free surface is formed. At the tail end (if the initial concentration is not very high) the particles settle freely A, and above this free surface the liquid is clean. In the vicinity of the bottom of the precipitation tank, there is a region B where the precipitation action is delayed, and at the bottom is a high concentration region C where the precipitate is compressed. The free surface is
It gradually subsides until it becomes a compression region. The rate of precipitation becomes progressively slower. When the liquid is sucked from the settling tank through the pipe 7 and used (FIG. 1), it is necessary to wait until virtually all the liquid is purified, which takes a lot of time (in FIG. 2). U1), and the operation of the equipment including the filter 4 is affected. It is considered to have a minimum capacity of continuous time U1 for absorbing dirt before cleaning said settling tank 6 again.

【０００７】然しながら、出願人は以下の事実を実験的
に発見した。すなわち、前記沈澱槽内において液体の表
面ｓの高さｈが一定の場合には上述した現象は正しい
が、前記液体の表面ｓ近傍部分が、上述した侍従領域の
直下に位置する領域Ａにおいて沈降する第１速度ＶA と
関連するある速度で排出される場合には、沈澱速度は、
領域Ａ、Ｂ、Ｃ、Ｄの各相で変化せず、図２の領域Ａに
おける破線Ａ′で示す、上記第１速度ＶA とほぼ同じ一
定速度に維持されるというものである。図２から理解さ
れるように、排出時間Ｕ2 は、当初の時間Ｕ1 と比較し
て非常に短く、つまりＵ2 ＜Ｕ1 となり、実験によれば
Ｕ1 ＝２４時間であるのに対してＵ2 ≒５時間であっ
た。However, the applicant has experimentally discovered the following facts. That is, when the height h of the surface s of the liquid is constant in the settling tank, the above-mentioned phenomenon is correct, but the portion near the surface s of the liquid is settled in the region A located immediately below the subordinate region. When discharged at a rate related to the first rate V A , the settling rate is
It does not change in each phase of the regions A, B, C, D, and is maintained at a constant velocity substantially the same as the first velocity V A shown by the broken line A ′ in the region A of FIG. As can be seen from FIG. 2, the discharge time U 2 is very short compared with the initial time U 1 , that is, U 2 <U 1 , and according to the experiment, U 1 = 24 hours. U 2 ≈ 5 hours.

【０００８】本発明による装置により前記沈澱槽６が排
出されるのに比例して、沈澱速度が増加、つまり直線Ａ
A ′の傾きが増加し、時間Ｕが理論的な時間よりも短く
なった。従って、液体の上部が浄化されるのに必要な時
間Ｕ3 （直線Ａに沿った時間、つまり３時間）経過後、
本発明による装置は、前記沈澱槽６の上部を排出する手
段を具備する。前記沈澱槽６の側壁ｐは、下動可能であ
ってその上部から溢れ出すことにより排出可能に構成さ
れているが、僅かに液面内に浸された吸引口ｂを有し、
フロート８により所定位置に保持されたパイプ９を備え
た実験では良好な結果を得ている。と言うのは、該方法
において前記吸引口ｂは、図２の領域Ａ内に一定に保持
されるからである。The settling rate increases in proportion to the discharge of the settling tank 6 by the device according to the present invention, that is, the straight line A
Increasing the inclination of the A ', U is shorter than the theoretical time period. Therefore, after the time U 3 (the time along the straight line A, that is, 3 hours) required for purifying the upper part of the liquid elapses,
The device according to the invention comprises means for discharging the upper part of the settling tank 6. The side wall p of the settling tank 6 is configured so that it can be moved downward and can be discharged by overflowing from the upper part thereof, but it has a suction port b slightly immersed in the liquid surface,
Good results have been obtained in experiments with the pipe 9 held in place by the float 8. This is because in the method, the suction port b is constantly held in the area A of FIG.

【図面の簡単な説明】[Brief description of drawings]

【図１】工作機械に使用される濾過装置のブロック線図
である。FIG. 1 is a block diagram of a filtering device used in a machine tool.

【図２】液体中の粒子の沈降速度を表したグラフであ
る。FIG. 2 is a graph showing the sedimentation rate of particles in a liquid.

【図３】本発明による濾過装置の略示図である。FIG. 3 is a schematic diagram of a filtration device according to the present invention.

【符号の説明】[Explanation of symbols]

１…工作機械 ２…パイプ ３…タンク ４…フィルタ ５…弁装置 ６…沈澱槽 パイプ ８…フロート ９…パイプ ＶA …沈澱速度 ｂ…吸引口 ｈ…液面高さ ｐ…側壁 ｓ…液面1 ... Machine tool 2 ... Pipe 3 ... Tank 4 ... Filter 5 ... Valve device 6 ... Precipitation tank Pipe 8 ... Float 9 ... Pipe VA ... Precipitation speed b ... Suction port h ... Liquid level p ... Side wall s ... Liquid level

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 液体を分配するための弁装置と、フィル
タと、沈澱槽を具備し、懸濁液として粒子を有した液体
を濾過するための装置において、 沈降速度の減少する様々な相で懸濁液の粒子が沈澱し、 そして、前記濾過装置は、前記沈澱槽の上部から液体を
排出すると共に、該沈澱槽内の沈降する液体に追従する
手段を具備し、該手段は、沈澱速度が最大となる沈澱相
に相当する時間の少なくとも一部の時間停止し、次いで
再び始動するように構成されており、そして粒子が自由
に沈降する領域（Ａ）の沈澱速度（ＶA）に近い速度で
前記沈澱槽から排出されることを特徴とする濾過装置。1. An apparatus for filtering a liquid having particles as a suspension, comprising a valve device for distributing the liquid, a filter, and a settling tank, in various phases in which the sedimentation velocity decreases. The particles of the suspension settle, and the filtration device comprises means for discharging the liquid from the upper part of the settling tank and for following the settling liquid in the settling tank, the means comprising the settling rate Is configured to stop for at least part of the time corresponding to the maximum precipitation phase and then start again, and is close to the precipitation rate (V A ) in the area (A) in which the particles are free to settle. A filtration device, wherein the filtration device is discharged at a speed from the precipitation tank. 【請求項２】 前記手段は、１本のパイプを具備してお
り、前記パイプは、液面近傍に浸された吸引口を有し、
該吸引口を同じ高さに保持するフロートに固定されてい
ることを特徴とする請求項１に記載の濾過装置。2. The means comprises a single pipe, the pipe having a suction port immersed near the liquid surface,
The filtration device according to claim 1, wherein the suction port is fixed to a float that holds the suction port at the same height.
JP4153389A 1992-05-15 1992-06-12 Suspension separator Expired - Lifetime JP2518996B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR9206337A FR2691076B1 (en) 1992-05-15 1992-05-14 IMPROVED FILTERING SYSTEM BY DECANTATION OF LIQUIDS WITH SUSPENSION PARTICLES.
ITMI921264A IT1255101B (en) 1992-05-15 1992-05-22 Improved system for the filtration of liquids with suspended particles
CH01794/92A CH689348A5 (en) 1992-05-15 1992-06-04 liquid filtration system with suspended particles.
JP4153389A JP2518996B2 (en) 1992-05-15 1992-06-12 Suspension separator
DE4223832A DE4223832A1 (en) 1992-05-15 1992-07-20 Recovering contaminated machining lubricants and cooling liq.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9210413A GB2266849B (en) 1992-01-30 1992-05-15 Liquid filtration method
ITMI921264A IT1255101B (en) 1992-05-15 1992-05-22 Improved system for the filtration of liquids with suspended particles
CH01794/92A CH689348A5 (en) 1992-05-15 1992-06-04 liquid filtration system with suspended particles.
JP4153389A JP2518996B2 (en) 1992-05-15 1992-06-12 Suspension separator

Publications (2)

Publication Number Publication Date
JPH06307A true JPH06307A (en) 1994-01-11
JP2518996B2 JP2518996B2 (en) 1996-07-31

Family

ID=27428291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4153389A Expired - Lifetime JP2518996B2 (en) 1992-05-15 1992-06-12 Suspension separator

Country Status (5)

Country Link
JP (1) JP2518996B2 (en)
CH (1) CH689348A5 (en)
DE (1) DE4223832A1 (en)
FR (1) FR2691076B1 (en)
IT (1) IT1255101B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10043418A1 (en) * 2000-09-04 2002-04-18 Hilti Ag Cooling and rinsing device for tools for processing rock
EP1701971A2 (en) * 2003-12-31 2006-09-20 F.Hoffmann-La Roche Ag Peptide synthesis using decanting filter
DE102017206500A1 (en) 2017-04-18 2018-10-18 Robert Bosch Gmbh Pressure cleaning device with a pressure generating unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63256825A (en) * 1987-04-14 1988-10-24 Tsurumi Mfg Co Ltd Sludge settling interface detector

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB370072A (en) * 1931-01-14 1932-04-07 Whitehead & Poole Improvements in or relating to floating outlets for drawing off supernatant liquid
GB484716A (en) * 1936-11-13 1938-05-10 Dennis Brothers Ltd Sludge containers, particularly for use with mechanical gulley-emptying apparatus
GB818141A (en) * 1954-10-11 1959-08-12 Zwicky Ltd Delivery mechanism for tanks
DE1584851A1 (en) * 1965-02-05 1969-11-13 Abend Dr Ing Rudolf Process and system for the filtration of industrial waste water
AT284739B (en) * 1967-06-02 1970-09-25 Rudolf Dr Ing Abend Process and device for the filtration and desludging of waste water from neutralization in electroplating
GB1412102A (en) * 1971-11-03 1975-10-29 Glacier Metal Co Ltd Float-supported skimmers
JPS522058A (en) * 1975-06-24 1977-01-08 Suzuki Yasuo Means for discharging treated liquid from sewage treatment system
DE2742568A1 (en) * 1976-09-23 1978-03-30 Bernard Caillot METHOD AND DEVICE FOR CLEANING WASTE WATER
SE411021B (en) * 1977-10-10 1979-11-26 Alfa Laval Ab SET AND DEVICE FOR CLEANING SHEARBOX
DE2814233A1 (en) * 1978-04-03 1979-10-11 Michael Ing Grad Dinnendahl Industrial water recovery from settling basin - by overflow container immersed near surface in clean water zone
DE3241595A1 (en) * 1982-11-10 1984-05-10 Reinhart von Dr.-Ing. 8011 Solalinden Nordenskjöld Floating overflow for discharging liquids from a tank, in particular for discharging purified waste water from a settling tank

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63256825A (en) * 1987-04-14 1988-10-24 Tsurumi Mfg Co Ltd Sludge settling interface detector

Also Published As

Publication number Publication date
CH689348A5 (en) 1999-03-15
DE4223832A1 (en) 1994-01-27
JP2518996B2 (en) 1996-07-31
IT1255101B (en) 1995-10-19
ITMI921264A0 (en) 1992-05-22
ITMI921264A1 (en) 1993-11-22
FR2691076B1 (en) 1995-06-30
FR2691076A1 (en) 1993-11-19

Similar Documents

Publication Publication Date Title
US6616834B2 (en) Wastewater processor
JP4231901B2 (en) Coolant cleaning device
JP3288823B2 (en) Sand removal method and device for sand basin
US6027658A (en) Fluid filtration, recirculation and delivery apparatus and method
JP2518996B2 (en) Suspension separator
JP5248209B2 (en) Chemical recovery device and chemical recovery method
JP2678699B2 (en) Grinding waste liquid purification method
JP3055421U (en) Fine sludge removal device in coolant
JP2651559B2 (en) Waste water treatment equipment for water jet processing equipment
JP4234806B2 (en) Slurry separation method and apparatus
JP5201459B2 (en) Grinding fluid purification device
JP3973150B2 (en) Sludge separation device, sludge recovery device, and sludge separation method
JP2004148185A (en) Method and equipment for cleaning filthy and turbid water
JPH07121323B2 (en) Wastewater treatment equipment
JPS624491A (en) Suspended matter remover
RU2282489C2 (en) Cleaning of filter on base of hollow fibers at frontal mode of operation
JP2693053B2 (en) Water treatment equipment
JP2001170708A (en) How to remove scale from rolling lubricant
CN216755681U (en) Integrated small sewage pretreatment equipment
CN224258333U (en) System for circulating and filtering cutting fluid in semiconductor processing
KR200290095Y1 (en) The Filter to Block Suspended Solids for Sewage, Wastewater Treatment.
CN213731180U (en) Bearing grinding fluid centralized circulation system
JP3359448B2 (en) Oil-water separator
KR102306422B1 (en) Controllable Reusing Equipment for Washing Water of Metal Working Process by Rotated Electrolytic Ionizer and New Hydro-cyclone
JP3097164U (en) Integrated solid-liquid separation device