JP2017170296A - Floating oil recovery device - Google Patents

Floating oil recovery device Download PDF

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JP2017170296A
JP2017170296A JP2016056907A JP2016056907A JP2017170296A JP 2017170296 A JP2017170296 A JP 2017170296A JP 2016056907 A JP2016056907 A JP 2016056907A JP 2016056907 A JP2016056907 A JP 2016056907A JP 2017170296 A JP2017170296 A JP 2017170296A
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oil
floating oil
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weight chain
separation tank
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JP6536824B2 (en
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裕和 北川
Hirokazu Kitagawa
裕和 北川
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Toyota Motor Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a floating oil recovery device of a simple structure capable of efficiently separating and recovering floating oil from a process liquid containing oil and moisture such as a used coolant.SOLUTION: A process liquid L is stored and left for standing in an oil/water separation tank 2 to be separated by specific gravity difference into floating oil O and a remaining emulsion E. A stringlike spindle chain 3 is taken out by a spindle chain feeding mechanism 4 and brought into the oil/water separation tank 2 to raise the level of the process liquid L. The floating oil O thus overflows a floating oil recovery port 7 and is recovered. A color sensor 5 monitors the level of the remaining emulsion E. When the sensor detects that the level of the emulsion E reaches the height of the floating oil recovery port 7, a controller 6B of a control panel 6 stops a motor 9 of the spindle chain feeding mechanism 4. The emulsion E is thus prevented from overflowing and the floating oil O alone is efficiently recovered.SELECTED DRAWING: Figure 1

Description

本発明は、水分及び油分を含む処理液から浮上油を分離して回収するための浮上油回収装置に関するものである。   The present invention relates to a floating oil recovery apparatus for separating and recovering floating oil from a processing liquid containing moisture and oil.

機械加工に使用したクーラントを回収して再利用する場合、使用済のクーラントは、作動油、潤滑油等の油分を含んでいるため、水分と油分とを分離する必要がある。使用済のクーラント等の水分及び油分を含む処理液の水分と油分とを分離する場合、比重差により液面に浮上した油分を浮上油として分離して回収することができる。   When the coolant used for machining is collected and reused, the used coolant contains oil such as hydraulic oil and lubricating oil, and therefore, it is necessary to separate moisture and oil. When separating the water and oil of the treatment liquid containing water and oil such as used coolant, the oil floating on the liquid surface due to the difference in specific gravity can be separated and recovered as floating oil.

処理液中の水分と油分との比重差を利用した浮上油回収装置として、例えば特許文献１に記載されたものが公知である。特許文献１に記載された浮上油回収装置は、タンク内に貯留した処理液の浮上油をフロート付の吸引手段で吸引して油水分離槽に送り、油水分離槽において、処理液の液位を一定に維持しながら浮上油を越流させて回収するようにしている。   As a floating oil recovery device using the specific gravity difference between water and oil in the treatment liquid, for example, a device described in Patent Document 1 is known. The floating oil recovery apparatus described in Patent Document 1 sucks the floating oil of the treatment liquid stored in the tank by a suction means with a float and sends it to the oil / water separation tank. In the oil / water separation tank, the liquid level of the treatment liquid is While keeping it constant, the floating oil is overflowed and recovered.

特開２００４−３０５８４７号公報JP 2004-305847 A

しかしながら、特許文献１に記載された浮上油回収装置では、次のような問題がある。
この浮上油拐取装置は、フロート付の吸引手段を備えたタンク、及び、油液分離槽を用いるため、設備が大きくなり、コストもかかる。 However, the floating oil recovery apparatus described in Patent Document 1 has the following problems.
Since this floating oil collecting device uses a tank equipped with a suction means with a float and an oil-liquid separation tank, the equipment becomes large and the cost is high.

本発明は、上記の点に鑑みてなされたものであり、簡単な構造で効率よく浮上油を回収することができる浮上油回収装置を提供することを目的とする。   This invention is made | formed in view of said point, and it aims at providing the floating oil collection | recovery apparatus which can collect | recover floating oil efficiently with a simple structure.

上記の課題を解決するために、本発明は、水分及び油分を含む処理液から浮上油を分離して回収するための浮上油回収装置であって、
処理液を貯留し、浮上油を越流させる浮上油回収口を上部に有する油水分離槽と、
複数の錘が紐状に連結された錘チェーンと、
前記錘チェーンを繰出し及び繰入れして前記油水分離槽に連続的に投入及び回収可能な錘チェーン送り機構と、
処理液中の浮上油が分離した残りの油水混合液の液位を検知するセンサと、
前記センサが検出した油水混合液の液位に基づき、前記錘チェーン送り機構を制御して油水混合液の液位を調整することにより、浮上油のみを前記浮上油回収口から越流させて回収することを特徴とする。 In order to solve the above problems, the present invention is a floating oil recovery apparatus for separating and recovering floating oil from a treatment liquid containing moisture and oil,
An oil / water separation tank having a floating oil recovery port at the top for storing the processing liquid and allowing the floating oil to overflow,
A weight chain in which a plurality of weights are connected in a string shape;
A weight chain feeding mechanism capable of feeding and collecting the weight chain continuously into the oil / water separation tank and collecting the weight chain;
A sensor for detecting the level of the remaining oil / water mixture separated from the floating oil in the treatment liquid;
Based on the level of the oil / water mixture detected by the sensor, the weight chain feed mechanism is controlled to adjust the level of the oil / water mixture so that only the floating oil flows over the floating oil recovery port and is recovered. It is characterized by doing.

本発明に係る浮上油回収装置によれば、処理液を貯留した油水分離槽に、錘チェーン送り機構によって紐状に連結された錘チェーンを連続的に投入し、処理液の液位を上昇させて、浮上油を浮上油回収口から越流させて回収する。浮上油を分離した残りの油水混合液の液位をセンサによって監視し、油水混合液が浮上油回収口に達する前に錘チェーン送り機構を停止することにより、油水混合液の越流を防止して浮上油のみを効率よく回収することができる。   According to the floating oil recovery apparatus of the present invention, the weight chain connected in a string shape by the weight chain feeding mechanism is continuously put into the oil / water separation tank storing the treatment liquid, and the liquid level of the treatment liquid is raised. Then, the floating oil is recovered from the floating oil recovery port. The level of the remaining oil / water mixture separated from the floating oil is monitored by a sensor, and the weight chain feed mechanism is stopped before the oil / water mixture reaches the floating oil recovery port, preventing overflow of the oil / water mixture. Thus, only the floating oil can be recovered efficiently.

本発明の実施形態に係る浮上油回収装置の概略構成を示す斜視図である。It is a perspective view which shows schematic structure of the floating oil collection | recovery apparatus which concerns on embodiment of this invention. 図１の浮上油回収装置による浮上油回収工程を示す説明図である。It is explanatory drawing which shows the floating oil collection | recovery process by the floating oil collection | recovery apparatus of FIG. 図１の浮上油回収装置による浮上油回収工程を示すフローチャートである。It is a flowchart which shows the floating oil collection | recovery process by the floating oil collection | recovery apparatus of FIG.

以下、本発明の実施形態を図面に基づいて詳細に説明する。
本実施形態に係る浮上油回収装置は、機械加工に利用した使用済みのクーラント等の水分及び油分を含む処理液から比重差によって浮上油を分離して回収するためのものである。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The floating oil recovery apparatus according to the present embodiment is for separating and recovering floating oil by a specific gravity difference from a processing liquid containing moisture and oil such as used coolant used for machining.

図１に示すように、本実施形態に係る浮上油回収装置１は、使用済みのクーラント等の油分及び水分を含む処理液Ｌ（浮上油Ｏ及び残りのエマルジョンＥに分離した状態で図示されている）を貯留する油水分離槽２と、油水分離槽２に投入される紐状に連結された錘チェーン３と、錘チェーン３を繰り繰入れ、繰出しする錘チェーン送り機構４と、油水分離槽２内のエマルジョンＥを検知するためのセンサ５と、錘チェーン送り機構４の作動を制御する制御盤６と、を備えている。   As shown in FIG. 1, the floating oil recovery apparatus 1 according to the present embodiment is illustrated in a state where it is separated into a treatment liquid L (floating oil O and remaining emulsion E) containing oil and water such as used coolant. Are stored in the oil-water separation tank 2, the weight chain 3 connected in a string shape to be fed into the oil-water separation tank 2, the weight chain feeding mechanism 4 that rewinds and feeds the weight chain 3, and the oil-water separation tank 2. And a control panel 6 for controlling the operation of the weight chain feed mechanism 4.

油水分離槽２は、処理液Ｌを注入して貯留して静置し、油分と水分とを比重差により分離するものである。使用済みクーラント等の処理液は、潤滑油等の油分及び水溶性クーラント等の水分を含み、油水分離槽２内に静置することにより、比重の小さい油分が浮上することにより、浮上油Ｏと、残りの油水混合液（水分中に油分が分散した状態のエマルジョンＥ）とに分離される。油水分離槽２の上部には、浮上した油分、すなわち浮上油Ｏを越流させて油水分離槽２から外部へ流出させるための浮上油回収口７が設けられている。   The oil / water separation tank 2 injects the treatment liquid L, stores it, and keeps it stationary, and separates the oil and water from the difference in specific gravity. The processing liquid such as used coolant contains oil such as lubricating oil and water such as water-soluble coolant. By leaving the oil in the oil / water separation tank 2 to float, the oil having a small specific gravity floats, and the floating oil O and And the remaining oil / water mixture (emulsion E in which oil is dispersed in water). In the upper part of the oil / water separation tank 2, a floating oil recovery port 7 is provided for allowing the floating oil component, that is, the floating oil O, to overflow and flow out from the oil / water separation tank 2 to the outside.

錘チェーン３は、油水分離槽２内の処理液Ｌに沈めて処理液の液位を上昇させるための複数の錘３Ａを紐状体３Ｂで連結して紐状にしたものである。錘３Ａは、処理液Ｌに投入されたれたとき、処理液Ｌの撹拌を抑えて静置状態を維持しつつ、沈降して処理液Ｌの液位（液面の高さ）を調節できるように、比重及び体積が設定されている。また、錘３Ａ及び紐状体３Ｂは、処理液の成分に影響しないように油分及び水分に対して耐食性を有する合成樹脂、あるいは、ステンレス鋼等の材質で構成されている。   The weight chain 3 is formed by connecting a plurality of weights 3A, which are submerged in the treatment liquid L in the oil / water separation tank 2 and raising the liquid level of the treatment liquid, with string-like bodies 3B. When the weight 3A is poured into the processing liquid L, the weight of the processing liquid L can be adjusted by adjusting the liquid level (the height of the liquid surface) while suppressing the agitation of the processing liquid L and maintaining the stationary state. The specific gravity and volume are set. Further, the weight 3A and the string-like body 3B are made of a synthetic resin having a corrosion resistance against oil and moisture or a material such as stainless steel so as not to affect the components of the treatment liquid.

錘チェーン送り機構４は、紐状の錘チェーン３が巻回されるローラ８と、ローラ８を回転駆動するモータ９とを備えており、モータ９でローラ８を正逆回転させて、錘チェーン３を繰出し及び繰入れすることにより、錘チェーン３を油水分離槽２に連続的に投入することができ、また、回収することができるようになっている。   The weight chain feed mechanism 4 includes a roller 8 around which a string-like weight chain 3 is wound, and a motor 9 that rotationally drives the roller 8, and the motor 9 rotates the roller 8 forward and backward to rotate the weight chain. By feeding and feeding 3, the weight chain 3 can be continuously fed into the oil / water separation tank 2 and can be recovered.

センサ５は、浮上油Ｏが分離した残りの油水混合液（エマルジョンＥ）の液位（液面の高さ、すなわち、浮上油ＯとエマルジョンＥとの境界の位置）を検知するためのものである。本実施形態では、センサ５は、浮上油０の色調（一般的には黒色）と、残りの油水混合液（エマルジョンＥ）の色調（乳白色）とを識別可能なカラーセンサである。油水分離槽２には、浮上油Ｏを越流させる浮上油回収口７の高さに対応する部位に透明の窓部（図示せず）が設けられており、センサ５は、この窓部に対向させて配置されている。そして、センサ５は、エマルジョンＥが浮上油回収口７の高さの直前の液位に達したとき、その乳白色の色調を検知して検知信号を出力する。なお、センサ５は、エマルジョンＥの液位を検知できるものであればよく、例えば浮上油ＯとエマルジョンＥとの明暗を検知するもの、あるいは、他の種類のセンサでもよく、また、他の部位に配置されてもよい。   The sensor 5 is for detecting the level of the remaining oil / water mixture (emulsion E) from which the floating oil O has been separated (the height of the liquid surface, that is, the position of the boundary between the floating oil O and the emulsion E). is there. In the present embodiment, the sensor 5 is a color sensor that can distinguish between the color tone of the floating oil 0 (generally black) and the color tone (milky white) of the remaining oil-water mixture (emulsion E). The oil / water separation tank 2 is provided with a transparent window (not shown) at a position corresponding to the height of the floating oil recovery port 7 through which the floating oil O flows, and the sensor 5 is provided in the window. It is arranged to face each other. When the emulsion E reaches the liquid level immediately before the height of the floating oil recovery port 7, the sensor 5 detects the milky white color tone and outputs a detection signal. The sensor 5 may be any sensor as long as it can detect the liquid level of the emulsion E. For example, the sensor 5 may detect light and darkness between the floating oil O and the emulsion E, or may be another type of sensor. May be arranged.

制御盤６は、手動による錘チェーン送り機構４のモータ９のオン、オフ及び正逆回転の切換を行うスイッチ６Ａと、センサ５の検知信号に基づいてモータ９の作動を制御する制御部６Ｂとを備えている。この制御部６Ｂは、センサ５が油水分離槽２内のエマルジョンＥの液位が浮上油回収口７の高さの直前に達したのを検知したとき、その検知信号を受けてモータ９を停止するようになっている。   The control panel 6 includes a switch 6A for manually switching on / off and forward / reverse rotation of the motor 9 of the weight chain feeding mechanism 4, and a control unit 6B for controlling the operation of the motor 9 based on a detection signal of the sensor 5. It has. When the control unit 6B detects that the level of the emulsion E in the oil / water separation tank 2 has reached just before the height of the floating oil recovery port 7, the control unit 6B receives the detection signal and stops the motor 9 It is supposed to be.

以上のように構成した本実施形態の作用について図２及び図３をも参照して説明する。
図２（Ａ）に示すように、油水分離槽２内に処理液を貯留して静置し、比重差により浮上油ＯとエマルジョンＥとを分離する。制御盤６のスイッチ６Ａを操作し（図３のステップＳ１）、モータ９によりローラ８を正回転させて錘チェーン３を繰出して油水分離槽２内の処理液Ｌへの投入を開始する（図３のステップＳ２）。 The operation of the present embodiment configured as described above will be described with reference to FIGS.
As shown in FIG. 2 (A), the treatment liquid is stored in the oil / water separation tank 2 and allowed to stand, and the floating oil O and the emulsion E are separated by the difference in specific gravity. The switch 6A of the control panel 6 is operated (step S1 in FIG. 3), the roller 9 is rotated forward by the motor 9 to feed out the weight chain 3, and the charging into the processing liquid L in the oil / water separation tank 2 is started (FIG. 3). 3 step S2).

図２（Ｂ）に示すように、油水分離槽２内への錘チェーン３の投入により、油水分離槽２内の処理液Ｌの液位が上昇し（図３のステップＳ３）、浮上油Ｏが処理液回収口７の高さに達すると、処理液回収口７を越流する（図３のステップＳ４）。そして、処理液回収口７を越流した浮上油Ｏを回収する。このとき、複数の錘３Ａを紐状体３Ｂにより紐状に連結した紐状の錘チェーン３を錘チェーン送り機構４によって繰出して、油水分離槽２内に連続的に投入することにより、処理液Ｌの撹拌を抑えて静置状態を維持することができ、浮上油Ｏを効率よく分離、回収することができる。   As shown in FIG. 2 (B), when the weight chain 3 is inserted into the oil / water separation tank 2, the liquid level of the processing liquid L in the oil / water separation tank 2 rises (step S3 in FIG. 3), and the floating oil O Reaches the height of the processing liquid recovery port 7 and overflows the processing liquid recovery port 7 (step S4 in FIG. 3). Then, the floating oil O that has overflowed the treatment liquid recovery port 7 is recovered. At this time, a string-like weight chain 3 in which a plurality of weights 3A are connected in a string shape by a string-like body 3B is fed out by the weight chain feeding mechanism 4 and continuously put into the oil / water separation tank 2, whereby a treatment liquid The agitation of L can be suppressed and the stationary state can be maintained, and the floating oil O can be efficiently separated and recovered.

図２（Ｃ）に示すように、錘チェーン３の投入により浮上油Ｏの回収がほぼ終了し、エマルジョンＥの液位が処理液回収口７の直前の高さに達すると、カラーセンサであるセンサ５がエマルジョンＥの乳白色の色調を検知する（図３のステップＳ５）。そして、センサ５の検知信号により制御盤６の制御部６Ｂが錘チェーン送り機構４のモータ９を停止させ（図３のステップＳ６）、錘チェーン３の投入を停止する。これにより、エマルジョンＥが浮上油回収口７を越流することがない。なお、エマルジョンＥの液位が、液回収口７の直前の高さに達するまでは、センサ５が検知信号を出力せず、図３のステップＳ５からステップＳ２へ戻る。浮上油Ｏの回収後、操作盤６のスイッチ６Ａを操作して、モータ９を逆回転させ、ローラ８によって錘チェーン３を繰入れて油水分離槽２に投入した錘チェーン３を回収する。   As shown in FIG. 2C, when the weight chain 3 is inserted, the collection of the floating oil O is almost completed, and when the liquid level of the emulsion E reaches the height just before the treatment liquid collection port 7, the color sensor is obtained. The sensor 5 detects the milky white color tone of the emulsion E (step S5 in FIG. 3). And the control part 6B of the control panel 6 stops the motor 9 of the weight chain feed mechanism 4 by the detection signal of the sensor 5 (step S6 of FIG. 3), and stops the insertion of the weight chain 3. Thereby, the emulsion E does not overflow the floating oil recovery port 7. Until the liquid level of the emulsion E reaches the height immediately before the liquid recovery port 7, the sensor 5 does not output a detection signal, and the process returns from step S5 to step S2 in FIG. After the floating oil O is collected, the switch 6A of the operation panel 6 is operated to rotate the motor 9 in the reverse direction. The weight chain 3 is fed by the roller 8 into the oil / water separation tank 2 and collected.

このようにして、浮上油回収装置１は、簡単な構造で、油水分離槽２内において処理液Ｌを浮上油ＯとエマルジョンＥとに分離して、浮上油Ｏを効率よく回収することができる。   In this way, the floating oil recovery apparatus 1 can recover the floating oil O efficiently by separating the treatment liquid L into the floating oil O and the emulsion E in the oil / water separation tank 2 with a simple structure. .

１…浮上油回収装置、２…油水分離槽、３…錘チェーン、４…錘チェーン送り機構、５…センサ、７…浮上油回収口、Ｅ…エマルジョン（油水混合液）、Ｏ…浮上油、Ｌ…処理液   DESCRIPTION OF SYMBOLS 1 ... Floating oil collection apparatus, 2 ... Oil water separation tank, 3 ... Weight chain, 4 ... Weight chain feed mechanism, 5 ... Sensor, 7 ... Floating oil collection port, E ... Emulsion (oil-water mixture), O ... Floating oil, L ... Processing solution

Claims (1)

水分及び油分を含む処理液から浮上油を分離して回収するための浮上油回収装置であって、
処理液を貯留し、浮上油を越流させる浮上油回収口を上部に有する油水分離槽と、
複数の錘が紐状に連結された錘チェーンと、
前記錘チェーンを繰出し及び繰入れして前記油水分離槽に連続的に投入及び回収可能な錘チェーン送り機構と、
処理液中の浮上油が分離した残りの油水混合液の液位を検知するセンサと、
前記センサが検出した油水混合液の液位に基づき、前記錘チェーン送り機構を制御して油水混合液の液位を調整することにより、浮上油のみを前記浮上油回収口から越流させて回収することを特徴とする浮上油回収装置。 A floating oil recovery apparatus for separating and recovering floating oil from a treatment liquid containing moisture and oil,
An oil / water separation tank having a floating oil recovery port at the top for storing the processing liquid and allowing the floating oil to overflow,
A weight chain in which a plurality of weights are connected in a string shape;
A weight chain feeding mechanism capable of feeding and collecting the weight chain continuously into the oil / water separation tank and collecting the weight chain;
A sensor for detecting the level of the remaining oil / water mixture separated from the floating oil in the treatment liquid;
Based on the level of the oil / water mixture detected by the sensor, the weight chain feed mechanism is controlled to adjust the level of the oil / water mixture so that only the floating oil flows over the floating oil recovery port and is recovered. A floating oil recovery apparatus characterized by:
JP2016056907A 2016-03-22 2016-03-22 Levitation oil recovery system Expired - Fee Related JP6536824B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111039352A (en) * 2018-10-11 2020-04-21 抚顺远宏石化设备科技开发制造有限公司 Telescopic cloth liquid recovery unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58223450A (en) * 1982-05-17 1983-12-26 日鉄鉱業株式会社 Mill drive control apparatus
JPH08325766A (en) * 1995-06-01 1996-12-10 Hotani:Kk Treatment of degreasing and washing water for strip and device therefor
JP2007021344A (en) * 2005-07-14 2007-02-01 Chuo Sangyo Kk Pressure floatation separator, and treatment system using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58223450A (en) * 1982-05-17 1983-12-26 日鉄鉱業株式会社 Mill drive control apparatus
JPH08325766A (en) * 1995-06-01 1996-12-10 Hotani:Kk Treatment of degreasing and washing water for strip and device therefor
JP2007021344A (en) * 2005-07-14 2007-02-01 Chuo Sangyo Kk Pressure floatation separator, and treatment system using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111039352A (en) * 2018-10-11 2020-04-21 抚顺远宏石化设备科技开发制造有限公司 Telescopic cloth liquid recovery unit

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