JP2541889B2 - Cutting waste oil treatment method - Google Patents

Cutting waste oil treatment method

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Publication number
JP2541889B2
JP2541889B2 JP4070241A JP7024192A JP2541889B2 JP 2541889 B2 JP2541889 B2 JP 2541889B2 JP 4070241 A JP4070241 A JP 4070241A JP 7024192 A JP7024192 A JP 7024192A JP 2541889 B2 JP2541889 B2 JP 2541889B2
Authority
JP
Japan
Prior art keywords
waste oil
liquid
storage tank
bubbles
waste
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
Application number
JP4070241A
Other languages
Japanese (ja)
Other versions
JPH05228398A (en
Inventor
勝美 松本
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4070241A priority Critical patent/JP2541889B2/en
Publication of JPH05228398A publication Critical patent/JPH05228398A/en
Application granted granted Critical
Publication of JP2541889B2 publication Critical patent/JP2541889B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Auxiliary Devices For Machine Tools (AREA)

Description

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

【0001】[0001]

【産業上の利用分野】この発明は、工作機械で使用され
た切削油を、再利用するために一括回収して溜めておく
貯液槽内の廃油を処理する方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating waste oil in a liquid storage tank in which cutting oil used in a machine tool is collectively collected and stored for reuse.

【0002】[0002]

【従来の技術】貯液槽に回収された廃油内には、切削屑
を始めとして錆や剥げ落ちた塗料等多くの異物が混入し
ているので、一旦濾過しなければ再利用できない。そこ
で貯液槽内の廃油を汲み上げて濾過装置で濾過し、それ
を再供給している。従来の貯液槽は、攪拌装置、爆気装
置を装備して不純物や切削屑を廃油内に浮遊させ、その
切削屑を廃油とともに汲み上げて濾過装置へ送るように
なっている。また、特開昭51−65473号公報や、
特開昭60−134090号公報には、エアによって溶
液中の不純物を浮遊させて溶液の表層で捕捉し、溶液を
浄化する方法が開示されている。
2. Description of the Related Art Waste oil collected in a liquid storage tank contains many foreign substances such as rust and flaking paint, including cutting chips, and cannot be reused unless it is once filtered. Therefore, the waste oil in the liquid storage tank is pumped up, filtered by a filter device, and supplied again. The conventional liquid storage tank is equipped with a stirrer and an explosive device to suspend impurities and cutting debris in the waste oil and pump the cutting debris together with the waste oil to send it to the filtering device. In addition, JP-A-51-65473,
Japanese Patent Application Laid-Open No. 60-134090 discloses that it is melted by air.
The impurities in the liquid are suspended and captured on the surface layer of the solution,
A method of cleaning is disclosed.

【0003】[0003]

【発明が解決しようとする課題】従来貯液槽に装備され
ている攪拌装置では、異物がすぐに沈殿してしまい、一
旦沈殿した切削屑は槽の底に堆積物として残る。又浮遊
している切削屑は槽内に広く分散されていて、回収が困
難である。その上廃油内には有機物も多く含まれている
から、爆気装置を装備しているといえ、放出される気の
径が大きいのでその気は廃液中を漂うことなく一気に上
昇してしまい、浄化能力は殆ど期待できない。従って夏
場には暑さの為にそれらが腐敗して強烈な悪臭を放ち、
まるで下水道の中にいるようである。このため頻繁に新
しい切削油と交換しなければならない状況になり、再利
用される率が低く、古くなったものは専門業者に委ねて
廃棄処分しているのが現状である。一方、特開昭51−
65473号公報や、特開昭60−134090号公報
に開示された溶液の浄化方法は、溶液中にエアのみを混
入するだけであるため、不純物を効率良く浮上させるこ
とができない、という問題点を有している。特に、細か
い不純物の場合にはその傾向が顕著であるため、かかる
浄化方法では、切削屑を含む廃油をきれいに浄化するこ
とは、到底不可能であった。
In the conventional stirring device provided in the liquid storage tank, the foreign matter is immediately settled, and the once-precipitated cutting waste remains as a deposit on the bottom of the tank. Further, the floating cutting wastes are widely dispersed in the tank and are difficult to collect. In addition, since the waste oil contains a lot of organic matter, it can be said that it is equipped with an explosive device, but since the diameter of the air released is large, the air rises at once without drifting in the waste liquid, Purification ability can hardly be expected. Therefore, in the summer, they rot due to the heat, giving off a strong stench,
It's like being in the sewer. For this reason, it becomes necessary to frequently replace the cutting oil with new one, the rate of reuse is low, and the old one is left to a specialist to dispose of. On the other hand, JP-A-51-
65473 and JP-A-60-134090.
The method of cleaning a solution disclosed in the above document only mixes air into the solution.
Since it is only put in, it is necessary to efficiently raise the impurities.
There is a problem that it cannot do. Especially fine
In the case of a small impurity, the tendency is remarkable, so
The purification method is to clean the waste oil containing cutting chips.
It was impossible at all.

【0004】[0004]

【課題を解決するための手段】そこで出願人は、異物は
気泡の大きさ及びその数によって浮遊する形態及び割合
が大きく変化することを見出し、気泡の量と大きさを特
定することで効率の良い異物の回収に成功した。本発明
はその異物の回収及び腐敗防止を図るもので、切削廃油
の貯液槽に、回転翼車が内蔵された循環ポンプを接続
し、その循環ポンプで、前記貯液漕内から廃油を吸引し
てその廃油中に空気を混入させた後、前記回転翼車で廃
油を撹拌して廃油中に0.1mm以下の極微細な大量の
気泡を発生させ、しかる後、その廃油を貯液槽内へ噴出
することによって、前記貯液槽の廃液内に極微細な気泡
を充満させると共に渦流を与え、廃油内に含まれている
異物を前記極微細な気泡と共に浮上させて液面際で回収
するものである。ここで極微細な気泡とは、直径0.1
mm以下のものを言う。
Therefore, the applicant has found that the shape and proportion of foreign matter floating vary greatly depending on the size and number of bubbles, and the efficiency and efficiency can be improved by specifying the amount and size of bubbles. Successfully collected good foreign matter. The present invention aims to collect the foreign matters and prevent them from decaying, and connects a circulation pump having a built-in rotor wheel to a storage tank of cutting waste oil.
Then, the circulating pump sucks the waste oil from the storage tank.
After mixing air into the waste oil, the waste oil is discarded with the rotary impeller.
Stir the oil to a large amount of ultra-fine particles of 0.1 mm or less in the waste oil.
Generate bubbles, and then eject the waste oil into the liquid storage tank.
It allows giving swirl together to fill the very fine air bubbles to the waste of the storage tank, intended to collect the foreign substances contained in the waste oil by floating along with the extremely fine bubbles when the liquid level to is there. Here, the extremely fine bubbles have a diameter of 0.1.
mm or less.

【0005】[0005]

【作用】気泡の充満した渦流が形成されるので異物が堆
積しにくく、堆積してもすぐに浮遊し、その浮遊中に極
微細な気泡に包まれてその気泡と一緒に浮上して液面近
くに集合する。又極微細な気泡の形態にて廃液内に大量
の空気が含まれ、その空気により腐敗が防止されると共
に活性化が図られ、長期間に亘り繰り返し使用を可能と
する。また、循環ポンプは、吸引した廃油中に空気を混
入し、回転翼車で撹拌して極微細な大量の気泡を発生さ
せた後、その廃油を貯液槽内へ噴出する、という方式が
採用されているため、廃液中に極微細な気泡を効率良く
大量に発生させることができる。
[Function] Since a vortex flow filled with bubbles is formed, it is difficult for foreign matter to accumulate, and even if it accumulates, it floats immediately, and while floating, it is surrounded by extremely fine bubbles and floats up with the bubbles, causing the liquid level to rise. Gather nearby. Further, a large amount of air is contained in the waste liquid in the form of extremely fine bubbles, and the air prevents spoilage and is activated, enabling repeated use over a long period of time. In addition, the circulation pump mixes air with the sucked waste oil.
Then, stir with a rotor and generate a large amount of extremely fine bubbles.
The method of spraying the waste oil into the liquid storage tank after
Since it is adopted, it is possible to efficiently generate extremely fine bubbles in the waste liquid.
Can be generated in large quantities.

【0006】[0006]

【実施例】本発明に係る切削廃油の処理方法を図面に基
いて説明する。1は貯液槽、2は濾過装置である。貯液
槽1には、工作機械から排出された廃油3が逐次供給さ
れて一定量が貯えられるようになっており、又貯液槽1
内から汲み上げて濾過装置へ送り出す複数の汲み上げポ
ンプ4.4・・が装備されている。濾過装置2は周知の
ものであり、ここではその説明を省略する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for treating cutting waste oil according to the present invention will be described with reference to the drawings. Reference numeral 1 is a liquid storage tank, and 2 is a filtering device. The waste oil 3 discharged from the machine tool is sequentially supplied to the liquid storage tank 1 so that a fixed amount of the waste oil 3 can be stored.
It is equipped with a plurality of pumps 4.4 that are pumped from inside and sent to the filtration device. The filtering device 2 is well known, and the description thereof is omitted here.

【0007】5は循環ポンプであり、この循環ポンプ5
は、吸入パイプ6の途中にエア導入パイプ7が接続され
ている。このエア導入パイプ7にはコントロールバルブ
8が取り付けられていて、空気の流入量を調整できるよ
うになっている。循環ポンプ5の吐出口5aは槽内の底
面に固定され、噴出された液が内壁に沿って槽内を一巡
するようになっている。又前記循環ポンプ5の吸入パイ
プ6は、エア導入パイプ7の接続部分がベンチュリーに
なっていて、強力な吸い込み力が得られ、吸い込まれた
空気はポンプ内の回転翼車9によって細かい気泡に砕か
れる。実施例の循環ポンプは、モータ部を液面上に露出
させ、ポンプ本体のみを液内に配置するタイプである
が、モータを含む総てが液内に没入される所謂水中ポン
プ、或はポンプ本体も貯液槽の外に配置し、パイプを介
して槽内と接続して槽内の廃液を汲み上げて槽内へ戻す
文字通りの循環ポンプを使用することもできる。
Reference numeral 5 is a circulation pump.
Is connected to an air introduction pipe 7 in the middle of the suction pipe 6. A control valve 8 is attached to the air introduction pipe 7 so that the inflow amount of air can be adjusted. The discharge port 5a of the circulation pump 5 is fixed to the bottom surface in the tank so that the jetted liquid makes a round in the tank along the inner wall. The suction pipe 6 of the circulation pump 5 has a venturi at the connecting portion of the air introduction pipe 7 to obtain a strong suction force, and the sucked air is broken into fine bubbles by the rotary impeller 9 in the pump. Be done. The circulation pump of the embodiment is of a type in which the motor part is exposed above the liquid surface and only the pump body is placed in the liquid, but a so-called submersible pump or a pump in which all the parts including the motor are immersed in the liquid. It is also possible to use a literal circulation pump in which the main body is also disposed outside the liquid storage tank and is connected to the inside of the tank via a pipe to pump up the waste liquid in the tank and return it into the tank.

【0008】このように構成した貯液槽1は、循環ポン
プ4から噴出される廃液内に混入されている大量の極微
細な気泡10.10・・が貯液槽1内に放出され、廃液
を攪拌して切削屑を始めとする異物11を浮遊させる。
又廃液内に充満した気泡10は浮遊している異物11を
抱き込んで次第に上昇し、液面付近に集合する(図
3)。又気泡10が充満することによって廃液3の活性
化が図られ、腐敗を起こすこともなくなる。
In the liquid storage tank 1 constructed in this manner, a large amount of extremely fine bubbles 10.10, which are mixed in the waste liquid ejected from the circulation pump 4, are discharged into the liquid storage tank 1 to generate the waste liquid. The foreign matter 11 including cutting chips is suspended by stirring.
Further, the bubbles 10 filled in the waste liquid embrace the floating foreign matter 11 and gradually rise to gather near the liquid surface (FIG. 3). In addition, the bubble 10 is filled so that the waste liquid 3 is activated and is not decomposed.

【0009】前記循環ポンプ5を運転開始するときは、
最初からコントロールバルブ8を開いていては吸い込み
ができないから、最初はコントロールバルブ8を閉じて
廃液3の循環を行ない、続いてコントロールバルブ8を
少しづつ開き、気泡の様子を観察する。コントロールバ
ルブ8の開度により、気泡の大きさ及び量は大きく変化
し、大粒の気泡が放出されている間は従来と大差ない
が、大量の微細な気泡が勢い良く放出されると、廃液内
は突如として大量の微細な気泡に混じって重い金属片が
浮遊した状態に一変する。コントロールバルブ8をその
位置でロックしておけば、浮遊した異物は次々に浮上
し、浮上して一か所に集合した異物はバキューム装置で
吸引回収できる。
When starting operation of the circulation pump 5,
Since the control valve 8 cannot be sucked in from the beginning, the control valve 8 is first closed to circulate the waste liquid 3, and then the control valve 8 is opened little by little to observe the state of bubbles. The size and amount of bubbles greatly change depending on the opening degree of the control valve 8, and while the large bubbles are being discharged, there is no difference from the conventional one, but if a large amount of minute bubbles are released vigorously, Suddenly turns into a state in which heavy metal pieces are suspended and mixed with a large amount of fine bubbles. If the control valve 8 is locked at that position, the floating foreign substances float up one after another, and the floating foreign substances collected at one place can be sucked and collected by the vacuum device.

【0010】具体的なバキューム装置の一例を挙げれ
ば、図4に示すように、バキュームポンプ12の吸入口
に回収ボックス13を取付ける。回収ボックス13内に
は不織布14a、パンチングメタル14bを積層状に設
けたフイルタ14を収容すると共に、その回収ボックス
13を昇降動自在に支持すると共に、フロート15を設
けて上面開口部が常に液面際に位置させれば、液面が変
化しても液面に集合した異物を効率良く回収できる。
As a concrete example of the vacuum device, as shown in FIG. 4, a recovery box 13 is attached to the suction port of the vacuum pump 12. The recovery box 13 accommodates a filter 14 in which a nonwoven fabric 14a and a punching metal 14b are laminated, and supports the recovery box 13 so that it can be moved up and down, and a float 15 is provided so that the upper opening is always at the liquid level. If it is positioned at this time, foreign matter collected on the liquid surface can be efficiently collected even if the liquid surface changes.

【0011】実施例では一つの循環ポンプのみで攪拌も
行なわれるように構成されているが、より攪拌力を高め
るため、複数の循環ポンプを使用したり、循環ポンプに
加えて攪拌用のポンプを設置することもできる。又穿設
される設備に限らず、既設の貯液槽に従来の装置は撤去
せずそのまま残し、新たに循環ポンプを追加することも
可能である。又回収するための装置は実施例に限定する
ものではない。本発明の原理は、切削廃油の処理ばかり
でなく、貯水タンク、生活用水の浄化にも応用できる
し、更には植物の栽培(水耕栽培)に利用すると好結果
が得られることを付言する。
In the embodiment, the stirring is performed by only one circulation pump, but in order to further increase the stirring power, a plurality of circulation pumps may be used, or a stirring pump may be used in addition to the circulation pump. It can also be installed. Further, not only the equipment to be drilled, but it is also possible to add a circulation pump to the existing storage tank without removing the conventional apparatus. Also, the device for collecting is not limited to the embodiment. It should be added that the principle of the present invention can be applied not only to the treatment of cutting waste oil, but also to the purification of water storage tanks and domestic water, and that it can be used to cultivate plants (hydroponics) with good results.

【0012】[0012]

【発明の効果】本発明によれば、充満した気泡の浮力で
異物が浮遊し、それが気泡と一緒に浮上するので、液面
際において容易に回収できる。又酸素の溶存率が高まっ
て活性化が図れ、悪臭の発生を大幅に減少できる。
た、循環ポンプは、吸引した廃油中に空気を混入させ、
回転翼車で撹拌して極微細な大量の気泡を発生させた
後、その廃油を貯液槽内へ噴出する、という方式が採用
されており、廃液中に極微細な気泡を効率良く大量に発
生させることができるので、本発明によれば、細かい切
削屑をも除去でき、きわめて高い純度まで廃油を浄化す
ることができる。
According to the present invention, the foreign matter floats due to the buoyancy of the filled bubbles and floats together with the bubbles, so that they can be easily collected at the liquid level. Further, the dissolved rate of oxygen is increased and activation can be achieved, and the generation of malodor can be significantly reduced. Ma
In addition, the circulation pump mixes air into the sucked waste oil,
Stirring with a rotary impeller generated a large amount of extremely fine bubbles
After that, the method of ejecting the waste oil into the liquid storage tank is adopted.
Is used to efficiently generate a large amount of extremely fine bubbles in the waste liquid.
Therefore, according to the present invention, fine cutting can be performed.
Can remove shavings and purify waste oil to an extremely high degree of purity
Can be

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

【図1】本発明に係る切削廃油の処理方法を示す説明図
である。
FIG. 1 is an explanatory view showing a method for treating cutting waste oil according to the present invention.

【図2】循環ポンプの説明図である。FIG. 2 is an explanatory diagram of a circulation pump.

【図3】貯液槽内の廃液及び切削屑の動きを示す説明図
である。
FIG. 3 is an explanatory diagram showing movements of waste liquid and cutting waste in a liquid storage tank.

【図4】バキューム装置の説明図であるFIG. 4 is an explanatory diagram of a vacuum device.

【符号の説明】[Explanation of symbols]

1・・貯液槽、2・・濾過装置、3・・廃液、4・・汲
み上げポンプ、5・・循環ポンプ、5a・・吐出口、7
・・エア導入パイプ、8・・コントロールバルブ、9・
・回転翼車、10・・気泡、11・・異物、12・・バ
キュームポンプ、13・・回収ボックス、14・・フィ
ルタ、14a・・不織布、14b・・パンチングメタ
ル、15・・フロート。
1 ... Reservoir, 2 ... Filtration device, 3 ... Waste liquid, 4 ... Pumping pump, 5 ... Circulation pump, 5a ... Discharge port, 7
..Air introduction pipes, 8. Control valves, 9.
・ Rotary wheel, 10 ・ ・ Air bubbles, 11 ・ ・ Foreign matter, 12 ・ ・ Vacuum pump, 13 ・ ・ Collection box, 14 ・ ・ Filter, 14a ・ ・ Nonwoven fabric, 14b ・ ・ Punching metal, 15 ・ ・ Float

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 切削廃油の貯液槽に、回転翼車が内蔵さ
れた循環ポンプを接続し、その循環ポンプで、前記貯液
漕内から廃油を吸引してその廃油中に空気を混入した
後、前記回転翼車で廃油を撹拌して廃油中に0.1mm
以下の極微細な大量の気泡を発生させ、しかる後、その
廃油を貯液槽内へ噴出することによって、前記貯液槽の
廃液内に極微細な気泡を充満させると共に渦流を与え、
廃油内に含まれている異物を前記極微細な気泡と共に浮
上させて液面際で回収する切削廃油の処理方法。
1. A rotary impeller is built in a storage tank of cutting waste oil.
Connected circulation pump, and the circulation pump
Suctioned waste oil from the tank and mixed air into the waste oil
After that, stir the waste oil with the rotary impeller and add 0.1 mm to the waste oil.
Generates a large amount of the following ultra-fine bubbles, and then
By ejecting the waste oil into the liquid storage tank, the waste liquid in the liquid storage tank is filled with extremely fine bubbles and a vortex flow is given,
A method for treating cutting waste oil, in which foreign matter contained in waste oil is floated together with the ultrafine bubbles and collected at the liquid level.
JP4070241A 1992-02-19 1992-02-19 Cutting waste oil treatment method Expired - Fee Related JP2541889B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4070241A JP2541889B2 (en) 1992-02-19 1992-02-19 Cutting waste oil treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4070241A JP2541889B2 (en) 1992-02-19 1992-02-19 Cutting waste oil treatment method

Publications (2)

Publication Number Publication Date
JPH05228398A JPH05228398A (en) 1993-09-07
JP2541889B2 true JP2541889B2 (en) 1996-10-09

Family

ID=13425878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4070241A Expired - Fee Related JP2541889B2 (en) 1992-02-19 1992-02-19 Cutting waste oil treatment method

Country Status (1)

Country Link
JP (1) JP2541889B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07634U (en) * 1993-03-08 1995-01-06 トヨタ自動車株式会社 Cutting waste collection device
JP4697719B2 (en) * 2001-03-01 2011-06-08 株式会社鴻池組 Method for purifying contaminated soil and separation apparatus used therefor
JP4050144B2 (en) * 2002-12-25 2008-02-20 株式会社東芝 Hydraulic oil purification device and hydraulic oil purification method for hydraulic operation device
JP5717243B2 (en) * 2010-04-28 2015-05-13 芝浦メカトロニクス株式会社 Purification device

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* Cited by examiner, † Cited by third party
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JPS5165473A (en) * 1974-12-03 1976-06-07 Shinmei Kogyo Kk YUBUNBUNRIJOKYO SOCHI
JPS60134090A (en) * 1983-12-23 1985-07-17 森實 美津夫 Deinking method and apparatus of pulp

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