JP2007098538A - Solid-liquid separation system - Google Patents

Solid-liquid separation system Download PDF

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JP2007098538A
JP2007098538A JP2005294294A JP2005294294A JP2007098538A JP 2007098538 A JP2007098538 A JP 2007098538A JP 2005294294 A JP2005294294 A JP 2005294294A JP 2005294294 A JP2005294294 A JP 2005294294A JP 2007098538 A JP2007098538 A JP 2007098538A
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tank
filter
liquid
foreign matter
separation
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Mitsuru Ooganeku
満 大兼久
Morihiro Watanabe
守弘 渡辺
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Sumitomo Heavy Industries Fine Tech Co Ltd
住友重機械ファインテック株式会社
Yamaha Marine Co Ltd
ヤマハマリン株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact and simple constitution to considerably improve separation efficiency of foreign matter in a solid-liquid separation system capable of reproducing pure coolant liquid by separating and recovering the foreign matter from polluted liquid mixed with foreign matter such as cutting chips and sludge. <P>SOLUTION: A horizontal tank of a scraping conveyor is arranged in an upper part of a precipitating tank. By filtering the coolant liquid by making the bottom in the horizontal tank as a punching filter, for instance, most of oil in the coolant liquid is separated in the filter part and is adhered to comparatively large foreign matter, and thereby the oil is separated and recovered without dripping by the scraping conveyor. Precipitation and separation in the precipitating tank therefore is promoted, foreign matter of different sizes can be efficiently separated and recovered by the scraping conveyor and precipitating tank. As a result, the separation recovery efficiency of foreign matter becomes equal or more as compared with that in a constitution of multistage filtration. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、工作機械等のクーラント液のごとく切削切粉、スラッジなどの異物が混入した汚濁液より、混入異物を少なくとも2段階で分離回収して清浄なクーラント液を再生できる個液分離システムに関し、該異物の分離回収効率に優れかつ初段で分離した異物の含水率を著しく低減でき、さらに極めてコンパクトでかつランニングコストが安価な個液分離システムに関する。   The present invention relates to an individual liquid separation system capable of regenerating clean coolant liquid by separating and collecting mixed foreign substances in at least two stages from a contaminated liquid mixed with foreign substances such as cutting chips and sludge like a coolant liquid for machine tools and the like. The present invention relates to an individual liquid separation system that is excellent in the separation and recovery efficiency of the foreign matter, can significantly reduce the moisture content of the foreign matter separated in the first stage, and is extremely compact and low in running cost.

切削や研削加工時にワークやバイトの冷却並びに加工屑の回収のために、水や水に特定油分を含ませて所要性状となした液体をクーラント液として使用することが一般的である。使用後のクーラント液は加工屑等の異物を分離除去して再生利用される。また、加工屑は、例えば金属材料は同じ材料として再利用可能なために分離回収される。   In order to cool a workpiece or a cutting tool and collect machining waste during cutting or grinding, it is common to use water or a liquid made into a required condition by containing a specific oil in water as a coolant liquid. The used coolant liquid is recycled by separating and removing foreign matters such as processing waste. Further, the processing waste is separated and recovered because, for example, a metal material can be reused as the same material.

一方、使用したクーラントには加工屑のほか、ごみ等やワークの防錆油、工作機械の潤滑油などの種々油分が混合しているため、これをそのまま長時間貯溜すると、腐敗により異臭が発生し、クーラントの潤滑性能が低下するだけでなく、その後の環境、衛生上の問題等が生じる。   On the other hand, the used coolant contains various oils such as dust, rust preventive oil for workpieces, lubricating oil for machine tools, etc. in addition to processing waste. However, not only the lubrication performance of the coolant is deteriorated, but also environmental and hygiene problems occur thereafter.

従来、使用後のクーラント液から切粉を分離するドラムフィルター式濾過装置として、傾斜面を形成した貯蔵槽に投入したクーラント液から沈殿した切粉を槽底面から前記傾斜面の上方に配設される排出口の下流側にかけて切粉を掻揚げるスクレパーコンベアを設け、スクレパーコンベアの水平部と傾斜部の交点部分に濾過フィルターを設けて、濾過フィルターにて濾過後のクーラント液を該貯蔵槽の外部に流出させる構成が提案(特許文献1)されている。   Conventionally, as a drum filter type filtration device that separates chips from coolant liquid after use, chips precipitated from the coolant liquid charged in a storage tank having an inclined surface are disposed above the inclined surface from the tank bottom surface. A scraper conveyor that sweeps the chips toward the downstream side of the discharge port is provided, a filtration filter is provided at the intersection of the horizontal part and the inclined part of the scraper conveyor, and the coolant liquid filtered by the filtration filter is provided outside the storage tank. A configuration for causing the water to flow out is proposed (Patent Document 1).

また、かかる切粉とクーラントの分離ための個液分離装置として、磁性体の切り屑を除去するための磁気分離器を備え、これを通過したクーラントをタンク内で循環ポンプにて渦流を発生させ、当該タンク内に残存スラッジを凝集させる円形渦流クーラントタンクを備え、次に前記タンクから凝集スラッジと共に吸引したクーラントを急速旋回させることによりスラッジに遠心力を作用させて残存スラッジの除去を行うサイクロン装置を備え、さらにサイクロン装置から排出された残存スラッジを、沈殿抽出するスラッジ沈殿槽とを組み合せた構成が提案(特許文献2)されている。
特開2002-177713 特開2003-275938
In addition, as an individual liquid separator for separating chips and coolant, a magnetic separator for removing magnetic chips is provided, and the coolant that has passed through the separator is vortexed by a circulation pump in the tank. A cyclone device comprising a circular vortex coolant tank for agglomerating the residual sludge in the tank, and then removing the residual sludge by applying centrifugal force to the sludge by rapidly swirling the coolant sucked together with the agglomerated sludge from the tank In addition, there has been proposed a configuration in which a residual sludge discharged from a cyclone apparatus is combined with a sludge settling tank that precipitates and extracts (Patent Document 2).
JP2002-177713 JP2003-275938

前記ドラムフィルター濾過装置は、基本的に傾斜面を有する貯蔵槽の構成であり、占有するスペースは貯蔵槽の設置箇所寸法のみである点が利点となる。一方、分離能力は、貯蔵槽における沈殿にて切粉を分離させ、濾過フィルターにて濾過回収するので、分離するクーラントはある程度清浄化されるが、切粉の回収効率には沈殿物のみで限度があり、高い分離率は得られない。   The drum filter filtration device basically has a configuration of a storage tank having an inclined surface, and the space occupied is only an installation location dimension of the storage tank. On the other hand, the separation capacity is that the chips are separated by sedimentation in the storage tank and collected by filtration with a filtration filter, so the coolant to be separated is cleaned to some extent, but the collection efficiency of chips is limited only by sediments. Therefore, a high separation rate cannot be obtained.

また、スクレパーにて掻き上げられる切粉等はクーラントの含有率が高く、さらに廃棄処理が困難になるだけでなく、クーラントの系外への持出し量が多くなり補充を余儀なくされる。さらに、濾過フィルターの頻繁な交換が必要であるとともに、当該装置内に工作機からの潤滑油が混入しても除去できず、定期的なクーラントの総入換え装置の清掃が必要となる他、槽内でバクテリアの繁殖が進行して異臭が発生する問題がある。   In addition, the chips and the like scraped up by the scraper have a high content of coolant, which not only makes disposal difficult, but also increases the amount of coolant that is taken out of the system, which necessitates replenishment. Furthermore, frequent replacement of the filtration filter is necessary, and even if lubricating oil from the machine tool is mixed in the apparatus, it cannot be removed, and it is necessary to periodically clean the total coolant replacement device. There is a problem that a strange odor is generated due to the propagation of bacteria in the tank.

磁気分離器、渦流式凝集タンク、サイクロン装置並びにスラッジ沈殿槽を組み合せた構成は、切粉の分離回収率を高くすることができ、液のロングライフ化やタンクの清掃のインターバルが長くなるなどの利点を生じるが、磁気分離器とスラッジ沈殿槽におけるクーラントの系外への持出しや異臭の発生は解消されず、さらには4種の濾過装置の設置箇所が必要であるとともにそれらの維持管理に多大のコストと手間を要し、対費用効果の面で好ましいとは言い難い構成である。   Combining a magnetic separator, vortex-type agglomeration tank, cyclone device, and sludge settling tank can increase the separation and recovery rate of chips and increase the life of the liquid and the interval between tank cleaning. Although there is an advantage, the removal of the coolant to the outside of the magnetic separator and the sludge settling tank and the generation of a strange odor are not eliminated, and furthermore, the installation location of four types of filtration devices is necessary and their maintenance is greatly Cost and labor, and it is difficult to say that it is preferable in terms of cost effectiveness.

この発明は、工作機械等のクーラント液のごとく切削切粉、スラッジなどの異物が混入した汚濁液より、当該異物を分離回収して清浄なクーラント液を再生できる個液分離システムにおいて、異臭の発生がなく清掃などのメンテナンスフリー化、液のロングライフ化が達成でき、可能な限りコンパクトで簡単な構成からなり、かつ異物の分離効率を大きく向上させることが可能な構成からなる個液分離システムの提供を目的としている。   The present invention relates to a separate liquid separation system that can regenerate clean coolant liquid by separating and recovering foreign substances such as cutting chips and sludge mixed with foreign substances such as machine tool coolant liquids. Maintenance of maintenance such as cleaning, long life of liquids can be achieved, and the individual liquid separation system has a structure that is as compact and simple as possible, and that can greatly improve the separation efficiency of foreign substances. The purpose is to provide.

発明者らは、複数の濾過手段をシリーズ接続する等、構成を複雑にすることなく簡単でコンパクト化が可能であり、切削切粉やスラッジなどの分離回収が高効率で実施できる構成を目的に種々検討し、汚液から切粉を分離してできるだけ乾いた状態で機外へ排出するために、基本的に沈殿分離機能を有する沈殿物の掻き揚げコンベアと沈殿槽とを組み合せることに着目した。   The inventors aim to achieve a configuration that can be easily and compactly made without complicating the configuration, such as connecting a plurality of filtration means in series, and that can separate and collect cutting chips and sludge with high efficiency. In order to separate the swarf from the waste liquid and discharge it to the outside of the machine as much as possible, focus on combining a sediment conveyor with a sediment separation function and a sedimentation tank. did.

さらに発明者らは、この構成について鋭意検討を加えた結果、沈殿槽の上部に掻き揚げコンベアの水平槽を配置して、この水平槽底面を例えばパンチングフィルターとして汚濁液をろ過し、さらに沈殿槽で沈殿分離させることで、掻き揚げコンベアと沈殿槽で大小のサイズの異なる異物を効率良く分離回収でき、特に水平槽で分離した異物は従来に比して遙かにドライ状態として分離回収できること、分離した異物には汚濁液中の油分が付着して分離でき、沈殿槽への油分の混入が著しく低減できることを知見した。   Furthermore, as a result of intensive studies on this configuration, the inventors have arranged a horizontal tank of a scraping conveyor on the upper part of the precipitation tank, and filtered the contaminated liquid using the horizontal tank bottom as a punching filter, for example. It is possible to efficiently separate and collect foreign substances of different sizes in the scraping conveyor and the sedimentation tank, and in particular, the foreign substances separated in the horizontal tank can be separated and collected in a much dry state compared to the conventional, It has been found that oil in the contaminated liquid adheres to the separated foreign matter and can be separated, and the mixing of oil into the sedimentation tank can be significantly reduced.

発明者らは、さらに前記沈殿槽において、沈殿槽内の液に水流を起こすための液噴射手段と、例えば沈殿槽底面に沈殿した異物を吸引回収するためのポンプ吸引部とを備えることにより、沈殿槽内で微細異物を効率よく分離回収できることを知見し、この発明を完成した。   The inventors further include, in the settling tank, by providing a liquid jetting means for causing a water flow in the liquid in the settling tank, and a pump suction unit for sucking and collecting foreign matter precipitated on the bottom of the settling tank, for example. The present invention was completed by discovering that fine foreign matters can be efficiently separated and recovered in the sedimentation tank.

すなわち、この発明は、投入された汚濁液を底面の全部又は一部に設けたフィルター部で濾過し落下させる水平槽と、前記水平槽の底面から連続して傾斜面を立上げた傾斜上昇槽と、前記フィルター部上に捕捉された異物を前記傾斜上昇槽の上端部へと掻き上げ排出する排出手段とを有する掻き上げ分離槽と、前記水平槽の下部に配置して前記フィルター部から落下する濾過液を滞留させて当該濾過液中の微細異物を沈殿分離させる沈殿槽とを有することを特徴とする個液分離システムである。   That is, the present invention includes a horizontal tank that filters and drops the charged contaminants through a filter portion provided on all or part of the bottom surface, and an inclined ascending tank in which an inclined surface is continuously raised from the bottom surface of the horizontal tank. And a scraping separation tank having a discharging means for scraping and discharging the foreign matter trapped on the filter part to the upper end part of the inclined ascending tank, and falling from the filter part disposed at the lower part of the horizontal tank And a sedimentation tank for precipitating and separating fine foreign substances in the filtrate.

また、この発明は、上記構成の個液分離システムにおいて、
フィルター部は、小孔を多数配列する板材、メッシュフィルター、スリット孔を配列する板材のいずれかである構成、
フィルター部の小孔又はメッシュは、内径が0.1mm〜1.5mmの範囲である構成、
フィルター部のスリット孔は、孔幅が0.1mm〜1.5mmの範囲である構成、
沈殿槽は、沈殿槽内の液に水流を起こすための液噴射手段と、沈殿槽底面に沈殿した異物を吸引回収するため槽上部より液中に配置するポンプ吸引部とを備える構成、
沈殿槽は、沈殿槽内の液に水流を起こすための液噴射手段と、沈殿槽底面に沈殿した異物を吸引回収するため槽内に配置したポンプ吸引部とを備える構成、
沈殿槽は、矩形底面で底面の長辺及び短辺よりも槽深さが浅い構成、を併せて提案する。
Further, the present invention provides an individual liquid separation system configured as described above,
The filter section is a plate material that arranges many small holes, a mesh filter, or a plate material that arranges slit holes,
The small hole or mesh of the filter part has a configuration in which the inner diameter is in the range of 0.1 mm to 1.5 mm,
The slit hole of the filter part is configured so that the hole width is in the range of 0.1 mm to 1.5 mm,
The settling tank comprises a liquid injection means for causing a water flow in the liquid in the settling tank, and a pump suction unit disposed in the liquid from the top of the tank for sucking and collecting the foreign matter precipitated on the bottom of the settling tank,
The settling tank comprises a liquid injection means for causing a water flow in the liquid in the settling tank, and a pump suction unit arranged in the tank for sucking and collecting foreign matter precipitated on the bottom of the settling tank,
The sedimentation tank is proposed with a rectangular bottom surface and a structure in which the tank depth is shallower than the long and short sides of the bottom surface.

この発明は、掻き揚げ分離槽の水平槽と沈殿槽を上下に配置することで省スペース化を図ることができ、この槽の上下配置は、該水平槽底にフィルター部を設けることでクーラント液等から直ちにほとんどの異物を分離除去でき、この分離した異物は十分に液切りして傾斜上昇槽の上端部へと掻き上げ排出でき、ドライな異物回収が可能となる。前記フィルター部を通過した後のクーラント液は、沈殿槽に落下させて同槽で液中の微細な異物等を沈殿分離させることが可能で、この水平槽と沈殿槽での濾過対象を大小に区分できるため、各槽で分離回収が効率よくなる利点がある。   In this invention, space can be saved by arranging the horizontal tank and the sedimentation tank of the freight separation tank vertically, and the vertical arrangement of this tank can be achieved by providing a filter part at the bottom of the horizontal tank. Most of the foreign matter can be separated and removed immediately, etc., and the separated foreign matter can be sufficiently drained and discharged to the upper end of the inclined ascending tank, and dry foreign matter can be collected. The coolant liquid after passing through the filter section can be dropped into a sedimentation tank to precipitate and separate fine foreign matters in the liquid, and the filtration target in the horizontal tank and the sedimentation tank can be made large and small. Since it can be divided, there is an advantage that the separation and recovery is efficient in each tank.

例えば、通常の掻き揚げコンベアを備えた分離槽では分離回収が困難な油分は、異物等に付着してそれを浮遊させることが多いが、この発明の水平槽の構成によると、底部のフィルター部方向に流れが生じることで、クーラント液中の油分の大半がフィルター部で沈殿し分離する比較的大きな異物に付着することで掻き揚げコンベアで分離回収され、それ故、沈殿槽での微細な異物の沈殿が容易になり、掻き揚げ分離槽と沈殿槽の2段濾過であるが、異物の分離回収効率が多段濾過の構成と同等以上に極めて良好となる。従って、この発明によると、装置での異臭の発生がなく清掃などもほとんど不要でメンテナンスフリー化、液のロングライフ化が達成できる。   For example, oil components that are difficult to separate and collect in a separation tank equipped with a normal scraping conveyor often adhere to foreign substances and float on the foreign matter, but according to the configuration of the horizontal tank of the present invention, the bottom filter section As a result of the flow in the direction, most of the oil in the coolant liquid is separated and collected by the freight conveyor by adhering to the relatively large foreign matter that settles and separates in the filter section. However, the foreign matter separation and recovery efficiency is extremely good, equivalent to or better than that of the multi-stage filtration. Therefore, according to the present invention, there is no off-flavor generation in the apparatus, cleaning is almost unnecessary, maintenance-free operation, and longer liquid life can be achieved.

この発明は、掻き揚げ分離槽の掻き揚げコンベアと、沈殿槽での沈殿促進のための水流形成用の噴射部や沈殿異物の吸引ポンプ等、可動装置に特に摩耗したり目詰まりするなどの頻繁にメンテナンスを要する装置構成が少なく、長期間の安定的な操業と長いメンテナンスインターバルが両立する利点がある。   This invention is frequently worn or clogged with mobile devices such as a scraping conveyor for a scouring separation tank, a water flow forming jet for promoting precipitation in a sedimentation tank, and a suction pump for sedimented foreign matter. Therefore, there is an advantage that both a long-term stable operation and a long maintenance interval are compatible.

この発明において、掻き揚げ分離槽は、汚液を投入する水平槽に傾斜上昇槽を有して水平槽底上の異物を傾斜上昇槽へと掻き上げて排出する構成であれば、公知のいずれの構成も採用できる。   In the present invention, the scraping separation tank has any inclined rising tank in the horizontal tank into which the sewage is introduced, and any known substance can be used as long as the foreign matter on the bottom of the horizontal tank is scraped up and discharged to the inclined rising tank. The configuration can also be adopted.

汚液を投入する水平槽は、例えば平行する2条のチェーン間に所要幅のスクレパーを渡して槽底を掃くことができるコンベアを配置できれば良く、矩形状の水平槽の一方端側にスプロケットなどの転回部を設け、他方端には傾斜上昇槽を接続することで、水平槽底上の異物を傾斜上昇槽へと掻き上げて排出する掻き揚げコンベアを配置することができる。   The horizontal tank into which the sewage is introduced needs only to be able to arrange a conveyor that can sweep the bottom of the tank by passing a scraper of the required width between two parallel chains, such as a sprocket on one end of a rectangular horizontal tank. By providing the turning part and connecting the inclined rising tank to the other end, it is possible to arrange a scraping conveyor that scrapes and discharges foreign matter on the bottom of the horizontal tank to the inclined rising tank.

掻き揚げコンベアは、水平槽底上の異物をスクレパーで搬送できれば、上述の構成の他、公知のいずれの構成も採用できる。また、スクレパーは、その材質、形状などに関し、後述のフィルター部の形態や開口率など、分離除去対象である切粉などの形状、寸法範囲、材質等に応じて適宜選定できる。   The scraping conveyor can adopt any known configuration in addition to the above-described configuration as long as the foreign matter on the bottom of the horizontal tank can be conveyed by the scraper. In addition, the scraper can be appropriately selected according to the shape, size range, material, and the like of the chip to be separated and removed, such as the form and aperture ratio of the filter unit described later, regarding the material, shape, and the like.

水平槽の底面の全部又は一部に設けるフィルター部は、クーラント液などの汚液中の切粉などの異物を大小に区分するもので、小孔を多数配列する板材、メッシュフィルター、種々サイズのスリット孔を配列する板材等のフィルターで構成することができ、例えば分離除去すべき切粉などの形状、寸法範囲、材質等に応じて、小孔の内径、メッシュの開き径、スリットの孔幅やそれらの配置を適宜選定できる。いずれも後述のスクレパーにて、水平槽底の該フィルターを通過しない切粉等の異物を掻き取り搬送することから、フィルター部で目つまりやスクレパーの搬送を阻害することが少ない構成が望ましい。   The filter part provided on all or part of the bottom surface of the horizontal tank is used to classify foreign matters such as chips in the sewage liquid such as coolant liquid into large and small plates, plate materials with many small holes arranged, mesh filters, various sizes It can be configured with a filter such as a plate that arranges slit holes. For example, depending on the shape, size range, material, etc. of chips to be separated and removed, the inner diameter of the small hole, the opening diameter of the mesh, the hole width of the slit And their arrangement can be selected as appropriate. In any case, since the scraper described later scrapes and conveys foreign matters such as chips that do not pass through the filter at the bottom of the horizontal tank, it is desirable that the filter portion hardly obstructs the eyes or the scraper.

小孔を多数配列するフィルター部の小孔は、内径が0.1mm〜1.5mmの範囲が好ましい、さらに、0.2mm〜1mm、0.3mm〜0.6mmの範囲が好ましい。メッシュもスリット孔も同様の開き径、孔幅が好ましく、スリット長さも短いほうが好ましい。   The small holes of the filter portion in which a large number of small holes are arranged preferably have an inner diameter in the range of 0.1 mm to 1.5 mm, and more preferably in the range of 0.2 mm to 1 mm, and 0.3 mm to 0.6 mm. The mesh and the slit hole preferably have the same opening diameter and hole width, and the slit length is preferably shorter.

また、フィルター部は、掻き上げ分離槽の水平槽底の所要箇所の一部あるいはほぼ全面に設けることが可能であり、水平槽内に投入される汚液量は沈殿槽内に滞留させる汚液量や清浄液の需要量などを勘案して設置面積、開口率などを適宜選定できる。   In addition, the filter unit can be provided at a part or almost the entire surface of the horizontal tank bottom of the scraping and separating tank, and the amount of sewage charged into the horizontal tank is stored in the sedimentation tank. The installation area, the aperture ratio, etc. can be selected as appropriate in consideration of the amount and the demand for cleaning liquid.

この発明において、沈殿槽は、その上部に配置する掻き上げ分離槽から落下投入される汚液を収容して液中の異物を沈殿分離させることができれば、公知のいずれの構成も採用できる。   In the present invention, any known configuration can be adopted for the sedimentation tank as long as it can accommodate the sewage dropped from the scraping separation tank disposed in the upper part and precipitate and separate foreign substances in the liquid.

例えば沈殿槽内に蛇行や渦流れを形成することで槽底あるいは所要のフィルター部に異物の沈殿や集積を促進させる構成として、槽内を区画したり、槽底をすり鉢状に形成したり、液の噴射ノズルを槽内に適宜配置したり、さらに無駆動又は駆動型の撹拌プロペラを設けるなど種々の構成が採用できる。   For example, by forming meandering and vortex flow in the sedimentation tank, the composition of the tank bottom or the required filter part to promote the precipitation and accumulation of foreign substances, partitioning the tank, forming the tank bottom in a mortar shape, Various configurations such as appropriately arranging the liquid injection nozzle in the tank and further providing a non-drive or drive type stirring propeller can be employed.

沈殿槽で沈殿あるいは凝集、集積させた異物の回収は、沈殿槽の構成に応じて槽底や側壁に設ける吸引口あるいは槽上部より液中に配置するポンプ吸引口等により、清浄液とともに槽外に排出することができる。   The collection of foreign matter that has settled, aggregated, or accumulated in the sedimentation tank is collected with the clean liquid by using a suction port provided on the bottom or side wall of the tank or a pump suction port located in the liquid from the top of the tank. Can be discharged.

また、沈殿槽は、設置箇所に応じて槽形を円形、多角形、矩形、種々異形とすることができ、掻き上げ分離槽の1槽に対して沈殿槽を1槽とする他、沈殿槽1槽の上に複数の掻き上げ分離槽を配置したり、逆に多段階に沈殿させるために沈殿槽をタンデムやパラレルの多槽配置とすることもできる。なお、実施例に示すごとく、沈殿槽は、矩形底面で底面の長辺及び短辺よりも槽深さが浅い構成とすることで、設置箇所で床レベルより低いピットも不要で最もコンパクトに設置することができる。   In addition, the sedimentation tank can be round, polygonal, rectangular, or various shapes depending on the installation location, and the sedimentation tank has one sedimentation tank for one scraping separation tank. A plurality of scraping separation tanks can be arranged on one tank, or the precipitation tanks can be arranged in a tandem or parallel multi-tank arrangement in order to precipitate in multiple stages. In addition, as shown in the examples, the sedimentation tank has a rectangular bottom surface and a shallower depth than the long and short sides of the bottom surface. can do.

さらに、沈殿槽で分離濾過された清浄液は、必要に応じて他の濾過フィルターを用いた清浄装置などで精密濾過することも可能である。   Furthermore, the cleaning liquid separated and filtered in the settling tank can be subjected to microfiltration with a cleaning device using another filtering filter, if necessary.

図1、図2に示す構成は、通常の工場などで設置が容易となる、水深の浅い矩形の沈殿槽を主体とする個液分離装置である。槽内の四隅のみ丸めた略矩形の沈殿槽1は、その短辺側に清浄液槽2とを一体化して所要の矩形の液槽3が形成され、その四隅には床に載置するためのキャスターと高さ調整具が装着されている。   The configuration shown in FIGS. 1 and 2 is an individual liquid separator mainly composed of a rectangular sedimentation tank with a shallow water depth, which can be easily installed in a normal factory or the like. The rectangular precipitation tank 1 rounded only at the four corners of the tank is integrated with the cleaning liquid tank 2 on the short side to form the required rectangular liquid tank 3, which is placed on the floor at the four corners. The casters and height adjusters are installed.

沈殿槽1の上面半分の長辺方向に掻き上げ分離槽4の水平槽5とこれに接続される傾斜上昇槽6が載置され、水平槽5の底面には3枚のフィルター板7が配置され、加工装置からのクーラント液は、水平槽5の図の左側と右側上部に設ける導入口8より投入されて水平槽5底面のフィルター板7を通過して沈殿槽1内に落下する。   A horizontal tank 5 of the separation tank 4 and an inclined ascending tank 6 connected to the horizontal tank 5 are placed in the long side direction of the upper half of the upper surface of the precipitation tank 1, and three filter plates 7 are arranged on the bottom surface of the horizontal tank 5. Then, the coolant liquid from the processing apparatus is introduced from the inlet 8 provided on the left side and upper right side of the horizontal tank 5 in the drawing, passes through the filter plate 7 on the bottom surface of the horizontal tank 5 and falls into the precipitation tank 1.

図示しないが、水平槽5の図の左側端と傾斜上昇槽6の下端に配置する円板やガイド板、並びに傾斜上昇槽6の上端に軸支配置するスプロケットに歯合する2条のチェーンとでエンドレスコンベアを形成して、2条のチェーン間に所要幅のスクレパーを渡して槽底を掃くことができる掻き上げコンベアを構成してある。   Although not shown in the figure, a circular plate or guide plate disposed at the left end of the horizontal tank 5 and the lower end of the inclined ascending tank 6, and a two-strand chain meshing with a sprocket pivotally disposed at the upper end of the inclined ascending tank 6 An endless conveyor is formed, and a scraping conveyor that can sweep the bottom of the tank by passing a scraper of the required width between the two chains is configured.

掻き上げコンベアのスクレパーは水平槽5の槽底、特にフィルター板7上と傾斜上昇槽6の下端から上端へと沈殿した異物を掻き上げて槽頂部9より排出する。槽頂部9に水平部と落下スロープを設けて、コンベアの駆動モーター22に間欠的に開閉するカバー型シャッター21を設けることで、掻き上げて排出する異物からの液切りが実施できる。   The scraper of the scraping conveyor scoops up the foreign matter that has settled from the bottom of the horizontal tank 5, particularly on the filter plate 7 and from the lower end to the upper end of the inclined ascending tank 6, and discharges it from the tank top 9. By providing a horizontal portion and a falling slope at the tank top portion 9 and providing a cover-type shutter 21 that opens and closes intermittently at the drive motor 22 of the conveyor, it is possible to drain liquid from the foreign matter that is scraped up and discharged.

フィルター板7は、ここでは水平槽5の底面の一部に設けてあり、所要内径の小孔を所定ピッチで多数穿孔配置したパンチングフィルターからなる。   Here, the filter plate 7 is provided on a part of the bottom surface of the horizontal tank 5, and is formed of a punching filter in which a large number of small holes having a required inner diameter are arranged at a predetermined pitch.

沈殿槽1では、ポンプ10で槽内の液を汲み上げて、槽内の短辺と長辺の各壁面沿いに配置する4か所の噴射ノズル15より噴射し、図2では時計回りの渦流を形成して槽内の中央部底に異物を沈殿させる構成からなる。渦流手段は、上記の液噴射ノズルのほか、小型のスクリュウプロペラを用いるなど公知のいずれの手段をも採用できる。また、渦流方向も例えばポンプ主軸回転方向に応じて適宜選定できる。   In the sedimentation tank 1, the liquid in the tank is pumped up by the pump 10, and sprayed from the four spray nozzles 15 arranged along the short side wall and the long side wall in the tank. It consists of the structure which forms and deposits a foreign material to the center part bottom in a tank. As the eddy current means, any known means such as a small screw propeller can be used in addition to the above-described liquid jet nozzle. Further, the vortex flow direction can also be appropriately selected according to, for example, the pump spindle rotation direction.

また、沈殿槽1では、槽中央上部より液中に配置するポンプ11は、その下端部に沈殿槽底面に沈殿した異物を吸引回収するための吸引口12を有し、吸引口12の上部の胴部13に回転自在にプロペラ14を軸支してある。   In addition, in the sedimentation tank 1, the pump 11 disposed in the liquid from the upper center of the tank has a suction port 12 for sucking and collecting foreign matter deposited on the bottom surface of the precipitation tank at the lower end thereof, A propeller 14 is pivotally supported on the body 13 so as to be rotatable.

このプロペラ14は、矩形板状でその厚み端面を底に向け、槽底には当接せずに前記の時計回りの渦流れにて同様に旋回することができ、該矩形板の厚み端面に部分的に設けるスクレパーにて、槽底面上の異物を掃くように構成することで、沈殿槽底面に沈殿した異物を吸引口12へと集める機能を有している。   This propeller 14 has a rectangular plate shape with its thickness end face directed to the bottom, and can be similarly swung in the clockwise vortex flow without contacting the tank bottom. The scraper provided partially has a function of collecting foreign matter deposited on the bottom surface of the sedimentation tank to the suction port 12 by sweeping foreign matter on the bottom surface of the tank.

沈殿槽1で吸引口12からの液は、異物を含むため別途フィルターで濾過して異物を分離回収し、濾過後の液は沈殿槽1に戻す。沈殿槽1で図示しないポンプで槽1内の清浄液を例えば図示する塔型の濾過装置20で濾過し、濾過後の液は清浄液槽2へ投入する。清浄液槽2のポンプ17で汲み上げられた清浄液は、例えば再度加工装置へクーラント液として供給される。   Since the liquid from the suction port 12 in the sedimentation tank 1 contains foreign matter, it is separately filtered through a filter to separate and collect the foreign matter, and the filtered liquid is returned to the precipitation tank 1. In the sedimentation tank 1, the cleaning liquid in the tank 1 is filtered by, for example, a tower-type filtration device 20 shown in the figure, and the filtered liquid is put into the cleaning liquid tank 2. The cleaning liquid pumped up by the pump 17 of the cleaning liquid tank 2 is supplied again as a coolant liquid to the processing apparatus, for example.

また、清浄液は別のポンプ18で汲み上げられて前記濾過装置20のフィルターの逆洗浄液として使用され、再度沈殿槽1へ投入することも可能である。   Further, the cleaning liquid can be pumped up by another pump 18 and used as a backwashing liquid for the filter of the filtration device 20, and can be put into the sedimentation tank 1 again.

沈殿槽1では、図示のごとく公知のオイルスキマー16を併用することも可能である。さらに、沈殿槽1に複数のポンプを備えて、加工装置のベッドや治具の洗浄液として供給することが可能である。   In the sedimentation tank 1, a known oil skimmer 16 can be used in combination as shown. Furthermore, the settling tank 1 can be provided with a plurality of pumps and supplied as a cleaning liquid for a bed or jig of a processing apparatus.

水平槽5内に投入される汚液量はもちろん、前記洗浄液として利用する場合など、沈殿槽1内に滞留させる汚液量や清浄液の需要量などを考慮して、沈殿槽1と清浄液槽2に液面計19を備えて液面が所定範囲となるように制御される。   Considering not only the amount of sewage charged into the horizontal tank 5 but also the amount of sewage retained in the settling tank 1 and the demand for the cleaning liquid, such as when used as the cleaning liquid, the precipitation tank 1 and the cleaning liquid The tank 2 is equipped with a liquid level gauge 19 and controlled so that the liquid level falls within a predetermined range.

詳述した図1、図2の構成からなる個液分離システムの実施例において、掻き上げ分離槽は、その掻き上げコンベア速度約2m/min、パンチングフィルター孔内径0.5mm、パンチングフィルター面積約0.5m2とし、沈殿槽は容積800lとし、さらに終段として清浄液の濾過に不織布フィルターを使用した精密濾過装置を用いた。水希釈のクーラント液を用い、粉状及びカール状のアルミニウム切粉を除去し、清浄化能力として約200l/minの処理量が得られた。この条件で1年6か月の連続運転を行った。 In the embodiment of the individual liquid separation system having the configuration shown in FIGS. 1 and 2, the scraping separation tank has a scraping conveyor speed of about 2 m / min, a punching filter hole inner diameter of 0.5 mm, and a punching filter area of about 0.5 m. 2 , the precipitation tank had a volume of 800 l, and a microfiltration apparatus using a nonwoven fabric filter for filtering the cleaning liquid was used as the final stage. Using water-diluted coolant, powdered and curled aluminum chips were removed, and a throughput of about 200 l / min was obtained as a cleaning ability. Under these conditions, continuous operation was performed for 1 year and 6 months.

比較のため、槽底が通常の板面からなり、沈殿槽のプロペラを配置しない以外は同様仕様の上記掻き上げ分離槽と、同じ沈殿槽と精密濾過装置を用い、掻き上げ分離槽からは不織布フィルターを使用して沈殿槽へ送り、ついで精密濾過装置へと液が流れるようにシリーズ接続した濾過装置を用いて、同じクーラント液を用い、粉状及びカール状の切粉を除去し、約200l/minの処理量が得られるようにし、1年6か月の連続運転を行った。   For comparison, except that the bottom of the tank is a normal plate surface and the propeller of the settling tank is not arranged, the above-mentioned scraping and separating tank of the same specification is used, and the same settling tank and microfiltration device are used. Using a filter connected in series so that the liquid can flow to the microfiltration device using a filter, remove the powdery and curled chips using the same coolant solution, about 200 liters A continuous operation of 1 year and 6 months was performed so that a throughput of / min could be obtained.

比較装置は、本実施例の個液分離システムと同じ処理量を得てかつ連続運転するためには、掻き上げ分離槽での不織布フィルターは毎週交換し、沈殿槽でのオイルスキマー、精密濾過装置のフィルターの交換、洗浄インターバルは著しく短くなりほぼ毎週行う必要があった。また、掻き上げ分離槽でのクーラント液の持出しにより、毎週25〜30リットルのクーラント液の補充を行う必要が有り、さらには10か月程度で異臭により液の総入れ換えと清掃が必要であった。   In order to obtain the same processing amount as that of the individual liquid separation system of this embodiment and to operate continuously, the comparison device is replaced weekly with the non-woven fabric filter in the scraping separation tank, the oil skimmer in the precipitation tank, and the microfiltration device. The filter change and cleaning intervals were significantly shorter and had to be done almost every week. In addition, it was necessary to replenish 25 to 30 liters of coolant liquid every week by taking out the coolant liquid in the scraping and separation tank, and it was necessary to replace and clean the liquid due to a strange odor in about 10 months. .

これに対して本発明の個液分離システムの実施例では、当然のことながら掻き上げ分離槽での不織布フィルターは不要であり、パンチングフィルター部で濾過されて排出したアルミニウム切粉の液切れがよく、補充は週に8〜10リットルであった。また、1年6か月後も異臭はなく、装置全体の清掃並びに液の入れ換えの必要性は全くなかった。   On the other hand, in the embodiment of the individual liquid separation system of the present invention, it is needless to say that the nonwoven fabric filter in the scraping separation tank is unnecessary, and the aluminum chips discharged after being filtered by the punching filter section are well drained. The replenishment was 8-10 liters per week. Moreover, there was no off-flavor even after 1 year and 6 months, and there was no need to clean the entire device and replace the liquid.

すなわち、本実施例では、掻き上げ分離槽の水平槽底面のフィルター部で除去される切粉、スラッジとオイルが効率よく回収されるため、沈殿槽でのオイルスキマーと精密濾過装置のフィルターを汚すことが少ないことが明らかになった。また、沈殿槽では油分の流入が抑制され、渦流により微細切粉の凝集回収が進行するため、バクテリアの生成が抑制され、クーラント液の長寿命化が達成されている。   That is, in this embodiment, the chips, sludge and oil removed by the filter part at the bottom of the horizontal tank of the scraping separation tank are efficiently recovered, so the oil skimmer and the filter of the microfiltration device in the sedimentation tank are soiled. It became clear that there was little. In addition, the inflow of oil in the settling tank is suppressed, and agglomeration and collection of fine chips proceeds by the vortex, so that the generation of bacteria is suppressed and the life of the coolant is extended.

この発明は、実施例に明らかなように、掻き揚げ分離槽の水平槽と沈殿槽を上下に配置することで省スペース化を図ることができるだけでなく、水平槽底に設けたフィルター部で濾過対象を大小に区分でき、従来の掻き揚げ分離槽と沈殿槽で得られる異物の分離能力を大きく超える相乗効果が得られ、クーラント液中の油分の大半がフィルター部で分離し比較的大きな異物に付着することで掻き揚げコンベアですこぶる液切れよく分離回収され、それ故に沈殿槽での沈殿分離が促進され、異物の分離回収効率が従来の多段濾過の構成と同等以上となる。   As apparent from the examples, the present invention can not only save space by arranging the horizontal tank and the sedimentation tank of the freight separation tank up and down, but it can also be filtered by a filter section provided at the bottom of the horizontal tank. The target can be classified into large and small, and a synergistic effect that greatly exceeds the separation ability of foreign substances obtained in the conventional flotation separation tank and sedimentation tank is obtained, and most of the oil in the coolant is separated by the filter part into relatively large foreign substances. By adhering, it can be separated and collected with a scraping conveyor with good squeeze, so that the precipitation separation in the settling tank is promoted, and the separation and collection efficiency of foreign matters becomes equal to or more than that of the conventional multistage filtration configuration.

この発明による個液分離システムの構成例を示す正面説明図である。It is front explanatory drawing which shows the structural example of the separate liquid separation system by this invention. この発明による個液分離システムの構成例を示す上面説明図である。It is a top surface explanatory view showing the example of composition of the individual liquid separation system by this invention.

符号の説明Explanation of symbols

1 沈殿槽
2 清浄液槽
3 液槽
4 掻き上げ分離槽
5 水平槽
6 傾斜上昇槽
7 フィルター板
8 導入口
9 槽頂部
10,11,17,18 ポンプ
12 吸引口
13 胴部
14 プロペラ
15 噴射ノズル
16 オイルスキマー
19 液面計
20 濾過装置
21 カバー型シャッター
22 駆動モーター
1 Sedimentation tank
2 Cleaner tank
3 liquid tank
4 Scraping separation tank
5 Horizontal tank
6 Inclined ascending tank
7 Filter plate
8 Introduction
9 Tank top
10,11,17,18 pump
12 Suction port
13 Torso
14 Propeller
15 Injection nozzle
16 Oil skimmer
19 Level gauge
20 Filtration equipment
21 Cover shutter
22 Drive motor

Claims (7)

投入された汚濁液を底面の全部又は一部に設けたフィルター部で濾過し落下させる水平槽と、前記水平槽の底面から連続して傾斜面を立上げた傾斜上昇槽と、前記フィルター部上に捕捉された異物を前記傾斜上昇槽の上端部へと掻き上げ排出する排出手段とを有する掻き上げ分離槽と、前記水平槽の下部に配置して前記フィルター部から落下する濾過液を滞留させて当該濾過液中の微細異物を沈殿分離させる沈殿槽とを有する個液分離システム。 A horizontal tank for filtering and dropping the charged contaminants through a filter part provided on the whole or a part of the bottom surface, an inclined ascending tank having an inclined surface continuously raised from the bottom surface of the horizontal tank, and on the filter part A scraping separation tank having a discharging means for scraping and discharging the foreign matter trapped in the upper part of the inclined ascending tank, and a filtrate falling from the filter unit disposed in the lower part of the horizontal tank. And a settling tank for separating and separating fine foreign substances in the filtrate. フィルター部は、小孔を多数配列する板材、メッシュフィルター、スリット孔を配列する板材のいずれかである請求項1に記載の個液分離システム。 2. The individual liquid separation system according to claim 1, wherein the filter part is any one of a plate material in which a large number of small holes are arranged, a mesh filter, and a plate material in which slit holes are arranged. フィルター部の小孔又はメッシュは、内径が0.1mm〜1.5mmの範囲である請求項2に記載の個液分離システム。 3. The individual liquid separation system according to claim 2, wherein the small hole or mesh of the filter part has an inner diameter in the range of 0.1 mm to 1.5 mm. フィルター部のスリット孔は、孔幅が0.1mm〜1.5mmの範囲である請求項2に記載の個液分離システム。 3. The individual liquid separation system according to claim 2, wherein the slit hole of the filter part has a hole width in the range of 0.1 mm to 1.5 mm. 沈殿槽は、沈殿槽内の液に水流を起こすための液噴射手段と、沈殿槽底面に沈殿した異物を吸引回収するため槽上部より液中に配置するポンプ吸引部とを備える請求項1に記載の個液分離システム。 The precipitation tank comprises liquid injection means for causing a water flow in the liquid in the precipitation tank, and a pump suction unit disposed in the liquid from the upper part of the tank for sucking and collecting foreign matter precipitated on the bottom surface of the precipitation tank. Individual liquid separation system as described. 沈殿槽は、沈殿槽内の液に水流を起こすための液噴射手段と、沈殿槽底面に沈殿した異物を吸引回収するため槽内に配置したポンプ吸引部とを備える請求項1に記載の個液分離システム。 2. The individual settling device according to claim 1, wherein the settling tank includes a liquid jetting means for causing a water flow in the liquid in the settling tank, and a pump suction unit arranged in the tank for sucking and collecting foreign matter precipitated on the bottom surface of the settling tank. Liquid separation system. 沈殿槽は、矩形底面で底面の長辺及び短辺よりも槽深さが浅い請求項5又は請求項6に記載の個液分離システム。 7. The individual liquid separation system according to claim 5, wherein the sedimentation tank has a rectangular bottom surface and a shallower tank depth than the long side and the short side of the bottom surface.
JP2005294294A 2005-10-07 2005-10-07 Solid-liquid separation system Pending JP2007098538A (en)

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CN102357397A (en) * 2011-08-25 2012-02-22 沈阳北方重矿机械有限公司 Underground split heavy medium shallow slot sorting machine
CN103070919A (en) * 2012-12-31 2013-05-01 西安鸿生生物技术有限公司 Alcohol precipitation device with combination of high pressure atomization and countercurrent and method
JP2013156195A (en) * 2012-01-31 2013-08-15 Mitsubishi Heavy Ind Ltd Water pit structure for nuclear reactor fuel replacement
CN105062606A (en) * 2015-07-28 2015-11-18 济南精创模具技术开发有限公司 Oil-dust separation device for biomass forming machine
CN107019938A (en) * 2017-05-19 2017-08-08 象州县科学技术情报研究所 Automatic turnover separation of solid and liquid sedimentation basin
CN113117373A (en) * 2021-04-20 2021-07-16 江苏汉典生物科技股份有限公司 Lutein ester extraction process

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JP2003117769A (en) * 2001-10-16 2003-04-23 Cnk:Kk Coolant cleaning device

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JPS61102212A (en) * 1984-10-25 1986-05-20 Matsushita Electric Works Ltd Woody material and manufacture thereof
JPS63278741A (en) * 1987-05-06 1988-11-16 Enomoto Kogyo Kk Chip conveyer
JP2003117769A (en) * 2001-10-16 2003-04-23 Cnk:Kk Coolant cleaning device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102357397A (en) * 2011-08-25 2012-02-22 沈阳北方重矿机械有限公司 Underground split heavy medium shallow slot sorting machine
JP2013156195A (en) * 2012-01-31 2013-08-15 Mitsubishi Heavy Ind Ltd Water pit structure for nuclear reactor fuel replacement
CN103070919A (en) * 2012-12-31 2013-05-01 西安鸿生生物技术有限公司 Alcohol precipitation device with combination of high pressure atomization and countercurrent and method
CN105062606A (en) * 2015-07-28 2015-11-18 济南精创模具技术开发有限公司 Oil-dust separation device for biomass forming machine
CN107019938A (en) * 2017-05-19 2017-08-08 象州县科学技术情报研究所 Automatic turnover separation of solid and liquid sedimentation basin
CN113117373A (en) * 2021-04-20 2021-07-16 江苏汉典生物科技股份有限公司 Lutein ester extraction process

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