JPH0665772A - Method for cleaning oil sticking material therefor - Google Patents
Method for cleaning oil sticking material thereforInfo
- Publication number
- JPH0665772A JPH0665772A JP22037092A JP22037092A JPH0665772A JP H0665772 A JPH0665772 A JP H0665772A JP 22037092 A JP22037092 A JP 22037092A JP 22037092 A JP22037092 A JP 22037092A JP H0665772 A JPH0665772 A JP H0665772A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- cleaning
- cleaned
- gas
- tank
- 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.)
- Pending
Links
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は油付着物の洗浄方法及び
装置に係り、特に金属部品等の被洗浄物に付着した油分
を効率的に洗浄除去する油付着物の洗浄方法及び洗浄装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for cleaning oil deposits, and more particularly to a method and apparatus for cleaning oil deposits for efficiently removing oil components adhering to objects to be cleaned such as metal parts. .
【０００２】[0002]
【従来の技術】精密機械部品、電気部品等の切削加工工
程では、被加工材料と切削工具との間の摩擦の低減、発
生する多量の摩擦熱の除去、切クズの洗い流し、切削工
具の寿命の延長、仕上面の平滑化等の目的で切削油等が
使われている。従って、加工された材料にはこれらの油
分が付着するが、油分が付着したままでは製品とできな
い場合が多い。このため、通常、このような部品の仕上
げ工程では、有機溶剤を用いて油分の洗浄除去を行なっ
ている。2. Description of the Related Art In the cutting process of precision machine parts, electric parts, etc., the friction between the work material and the cutting tool is reduced, a large amount of frictional heat generated is removed, chips are washed away, and the life of the cutting tool is increased. Cutting oil, etc. is used for the purpose of extending the surface and smoothing the finished surface. Therefore, although these oils adhere to the processed material, it is often impossible to obtain a product if the oils remain adhered. For this reason, in the finishing process of such parts, oil components are usually washed and removed using an organic solvent.
【０００３】従来、このような油分の洗浄除去に用いら
れる有機溶剤としては、ケロシン、ベンゼン、キシレン
等の炭化水素系溶剤、トリクロロエチレン、テトラクロ
ロエチレン等の塩素系溶剤、トリクロロトリフルオロエ
タン等のフロン系溶剤が知られている。特に、電子、電
気、機械等の部品には高洗浄性、不燃性という特性を有
するフロン系又は塩素系の溶剤が使用されている。Conventionally, as an organic solvent used for cleaning and removing such oil, hydrocarbon solvents such as kerosene, benzene and xylene, chlorine solvents such as trichloroethylene and tetrachloroethylene, and freon solvents such as trichlorotrifluoroethane. It has been known. In particular, CFC-based or chlorine-based solvents, which have characteristics of high cleanability and nonflammability, are used for electronic, electrical, mechanical and other parts.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の有機溶剤のうち、炭化水素系溶剤、特にベンゼン、
キシレン等は毒性が高く、労働安全法上の有害物に指定
されている化合物であるため、これらを取り扱う作業の
危険性及び煩雑さ等の面で問題がある。また、上記塩素
系又はフロン系の溶剤は、安全性、毒性、環境汚染等の
面で大きな問題を有している。しかも、油付着物の洗浄
処理においては、洗浄除去した油分を洗浄液から効率的
に除去することも重要である。However, among the above-mentioned conventional organic solvents, hydrocarbon solvents, especially benzene,
Since xylene and the like are highly toxic and are compounds designated as harmful substances under the Industrial Safety Law, there are problems in terms of the danger and complexity of handling these. Further, the chlorine-based or chlorofluorocarbon-based solvents have major problems in terms of safety, toxicity, environmental pollution and the like. In addition, in the cleaning process of oily deposits, it is also important to efficiently remove the removed oil from the cleaning liquid.
【０００５】本発明は上記従来の問題点を解決し、油類
等の脱脂洗浄性に優れ、且つ、安全性及び作業環境衛生
性が良好で、環境汚染の問題のない油付着物の洗浄方法
であって、洗浄液からの洗浄除去した油分の回収も容易
な油付着物の洗浄方法及び洗浄装置を提供することを目
的とする。The present invention solves the above-mentioned problems of the prior art, is excellent in degreasing and cleaning properties of oils, etc., has good safety and working environment hygiene, and has no problem of environmental pollution. It is an object of the present invention to provide a method and apparatus for cleaning oil-adhered substances, which makes it easy to recover the removed oil from the cleaning liquid.
【０００６】[0006]
【課題を解決するための手段】本発明の油付着物の洗浄
方法は、表面に油分が付着した被洗浄物を２−ピロリド
ン、γ−ブチロラクトン、Ｎ，Ｎ−ジメチルアセトアミ
ドの中から選ばれる少なくとも一種と水とを含む洗浄剤
を収容した洗浄槽中に浸漬させて洗浄するに際し、該洗
浄槽内にガスを吹き込んで前記被洗浄物に付着している
油分を除去すると共に浮上分離させ、次いでこの浮上し
た油分を該洗浄槽から分離除去することを特徴とする。According to the method for cleaning an oil-adhered material of the present invention, at least the object to be cleaned having oil adhered to the surface is selected from 2-pyrrolidone, γ-butyrolactone and N, N-dimethylacetamide. When cleaning by immersing in a cleaning tank containing a cleaning agent containing one kind and water, a gas is blown into the cleaning tank to remove oil adhering to the object to be cleaned and to float and separate, This floating oil is separated and removed from the washing tank.
【０００７】本発明の油付着物の洗浄装置は、表面に油
分が付着した被洗浄物を浸漬洗浄するための、２−ピロ
リドン、γ−ブチロラクトン、Ｎ，Ｎ−ジメチルアセト
アミドの中から選ばれる少なくとも一種と水とを含む洗
浄剤を収容する洗浄槽、該洗浄槽内の下部に設けられた
ガス分散器と、該ガス分散器にガスを供給する手段とか
らなり、該ガス分散器からガスを洗浄剤中に吹き込み、
被洗浄物に付着する油分の除去並びに該油分の浮上分離
を促進させるガス導入装置、及び、浮上した油分を該洗
浄槽から分離除去するための油分除去装置を備えてなる
ことを特徴とする。The apparatus for cleaning oil-deposited material of the present invention is at least selected from 2-pyrrolidone, γ-butyrolactone and N, N-dimethylacetamide for dipping and cleaning an object to be cleaned with oil adhering to the surface. A cleaning tank containing a cleaning agent containing one kind and water, a gas disperser provided in the lower part of the cleaning tank, and a means for supplying gas to the gas disperser. Blow into the cleaning agent,
It is characterized by comprising a gas introduction device for promoting the removal of oil content adhering to the object to be cleaned and the floating separation of the oil content, and an oil removal device for separating and removing the floating oil content from the cleaning tank.
【０００８】以下、本発明につき、さらに詳細に説明す
る。本発明において用いられる脱脂洗浄剤は２−ピロリ
ドン、γ−ブチロラクトン、Ｎ，Ｎ−ジメチルアセトア
ミドの中から選ばれる少なくとも一種に水を含有した混
合物が用いられる。上記混合物としては、上記化合物に
水を通常７５重量％程度まで、好ましくは２５〜７５重
量％添加して用いることができる。特に２−ピロリドン
又はγ−ブチロラクトンの場合には水を、通常３５〜７
５重量％、好ましくは３５〜６０重量％含有させるのが
好適である。また、Ｎ，Ｎ−ジメチルアセトアミドの場
合には水を、通常２５〜７５重量％、好ましくは２５〜
６０重量％含有させるのが好適である。上記化合物に上
記した範囲の水を含有させたものは脱脂処理後、油分を
溶かさずに浮上分離できるので、該洗浄物を繰返し使用
でき該洗浄剤の全量回収又は定期的入替をしなくてもよ
く、且つ、該洗浄剤は引火しないので、非危険物として
取扱うことができるので好ましい。The present invention will be described in more detail below. As the degreasing detergent used in the present invention, a mixture containing water in at least one selected from 2-pyrrolidone, γ-butyrolactone and N, N-dimethylacetamide is used. As the above mixture, water can be added to the above compound usually up to about 75% by weight, preferably 25 to 75% by weight. Especially in the case of 2-pyrrolidone or γ-butyrolactone, water is usually used
It is suitable to contain 5% by weight, preferably 35 to 60% by weight. In the case of N, N-dimethylacetamide, water is added in an amount of usually 25 to 75% by weight, preferably 25 to 75% by weight.
It is preferable to contain 60% by weight. After the degreasing treatment, the above compound containing water in the above range can be floated and separated without dissolving the oil, so that the washed product can be repeatedly used without recovering the entire amount of the detergent or periodically replacing it. Good, and since the cleaning agent does not catch fire, it can be handled as a non-hazardous material, which is preferable.
【０００９】また、上記混合物中の水の量が７５重量％
より多いと脱脂効果は著しく低下する。また、本発明で
用いる洗浄剤は、少量のアルカリ化合物を配合すること
により、塗膜の剥離効果が向上し、より一層優れた洗浄
効果が得られる。この場合、アルカリ化合物の配合量
は、洗浄剤中の濃度で１００ｐｐｍ以上、特に３００〜
５０００ｐｐｍとするのが好ましい。また、配合するア
ルカリ化合物としては、アルカリ金属又はアルカリ土類
金属の水酸化物、炭酸塩、酢酸塩等の他、有機アミン等
が挙げられるが、望ましくは水酸化ナトリウム、水酸化
カリウム等のアルカリ金属の水酸化物又は水酸化カルシ
ウム等のアルカリ土類金属の水酸化物である。The amount of water in the mixture is 75% by weight.
If it is more, the degreasing effect is significantly reduced. Further, the cleaning agent used in the present invention contains a small amount of an alkali compound to improve the peeling effect of the coating film and to obtain a more excellent cleaning effect. In this case, the blending amount of the alkaline compound is 100 ppm or more in the concentration in the detergent, particularly 300 to
It is preferably set to 5000 ppm. Examples of the alkaline compound to be blended include alkali metal or alkaline earth metal hydroxides, carbonates, acetates and the like, as well as organic amines and the like, and preferably alkali such as sodium hydroxide and potassium hydroxide. It is a hydroxide of a metal or a hydroxide of an alkaline earth metal such as calcium hydroxide.
【００１０】本発明の油付着物の洗浄方法は、このよう
な化合物を含む洗浄剤を収容した洗浄槽中に油付着物を
浸漬させて洗浄するに際し、洗浄槽にガスを分散導入
し、このガスの導入により被洗浄物から剥離され、浮上
分離してくる油分を好ましくは連続的に洗浄槽外に分離
除去することにより容易に実施できる。この洗浄槽に浮
上する油分を分離除去する方法については特に制限はな
く、一般には、オイルスキマー装置、オーバーフロー装
置等の装置を用いて容易に実施することができる。具体
的には、例えば、次のような方法を採用することができ
る。In the method for cleaning oil deposits of the present invention, when the oil deposits are immersed in a cleaning tank containing a detergent containing such a compound for cleaning, a gas is dispersed and introduced into the cleaning tank. This can be easily carried out by continuously and continuously separating and removing the oil component, which is separated from the object to be cleaned by the introduction of gas and is floated and separated, outside the cleaning tank. There is no particular limitation on the method for separating and removing the oil component floating in the cleaning tank, and generally, it can be easily carried out using an apparatus such as an oil skimmer apparatus or an overflow apparatus. Specifically, for example, the following method can be adopted.
【００１１】即ち、温度調節機能を取り付けた洗浄浸漬
槽の下部に、ガスを吹き出せるヘッダーを設け、該ヘッ
ダーには適当な吹き出しノズルを取り付ける。このヘッ
ダー及びノズルは、吹き出したガスが被洗浄物に直接に
当たるように設置姿勢、配置個数、配置位置が選定され
る。ガスの吹き出し量は、被洗浄物に付着している油分
を物理的に剥ぎ取る効果と、洗浄剤と被洗浄物の接触を
良くし、油分を化学的に除去する効果の両方の効果が十
分に達成されるものであれば良い。被洗浄物の形状及び
大きさ等により異なり一概には言えないが、ガスノズル
からのガスの噴出線速をできるだけ大きくするのが効果
的である。この吹き出させるガスとしては、空気又は窒
素等が好適である。通常の場合、ガス吹き込み量は、洗
浄剤１リットル当り、０．２〜２ノルマルリットル（Ｎ
ｌ）／分の範囲とするのが好ましい。That is, a header capable of blowing gas is provided at the bottom of the cleaning dipping tank having a temperature control function, and an appropriate blowing nozzle is attached to the header. The installation posture, the number of arrangements, and the arrangement positions of the header and the nozzle are selected so that the blown gas directly hits the object to be cleaned. The amount of gas blown out is sufficient for both physically removing the oil that adheres to the object to be cleaned and improving the contact between the cleaning agent and the object to be cleaned and chemically removing the oil. What is achieved is. It depends on the shape and size of the object to be cleaned and cannot be generally stated, but it is effective to increase the linear velocity of the gas ejected from the gas nozzle as much as possible. Air, nitrogen, or the like is suitable as the gas to be blown out. Normally, the amount of gas blown is 0.2 to 2 normal liters (N) per liter of the cleaning agent.
1) / minute is preferable.
【００１２】本発明においては、前述の洗浄剤を収容し
たこのような洗浄浸漬槽内に、被洗浄物を浸漬して洗浄
処理するが、その際、洗浄処理温度は、２０〜１００
℃、特に４０〜８０℃の温度とするのが好ましい。浸漬
洗浄により、被洗浄物から剥離除去された油分は、洗浄
浸漬槽内を浮上してくるため、これを好ましくは連続的
に密度差分離する。本発明では、この密度差分離にあた
り、ガス吹き込みにより気泡が導入されることで、気泡
に付着した油分の密度が下がり、油分がより一層浮上し
易くなる。従って、この点からもガス吹き込み量が多い
ことが浮上分離の面で効果的であるが、前述の被洗浄物
からの油分の剥離除去に適当なガス吹き込み量であれ
ば、浮上分離に有効なガス量は十分確保される。In the present invention, the object to be cleaned is immersed in such a cleaning immersion tank containing the above-mentioned cleaning agent for cleaning treatment. At that time, the cleaning treatment temperature is 20-100.
C., especially 40 to 80.degree. C. are preferred. The oil component peeled and removed from the object to be cleaned by the immersion cleaning floats up in the cleaning immersion tank, and therefore it is preferably continuously subjected to density difference separation. In the present invention, in the density difference separation, the bubbles are introduced by gas blowing, so that the density of the oil component attached to the bubbles is reduced, and the oil component is more easily floated. Therefore, from this point as well, it is effective in terms of levitation separation that the amount of gas blown in is large, but if the amount of gas blown in is adequate to remove oil from the object to be cleaned, it is effective in levitation separation. A sufficient amount of gas is secured.
【００１３】このようにして浮上した油分は、前述のオ
イルスキマー装置、オーバーフロー装置等で分離除去し
て槽外へ排出する。これにより、浸漬した被洗浄物を取
り出す際、浮上した油分が被洗浄物に再付着するのを防
止することができる。その際、本発明で用いる洗浄剤
は、油分を飽和に達するまで溶解するものの、その飽和
溶解度が低い。このため、過飽和となって排出された油
分を洗浄液と容易に分離することができる。The oil component thus floated is separated and removed by the above-mentioned oil skimmer device, overflow device, etc., and discharged to the outside of the tank. This makes it possible to prevent the floating oil from reattaching to the object to be cleaned when the immersed object to be cleaned is taken out. At that time, the detergent used in the present invention dissolves the oil until it reaches saturation, but its saturation solubility is low. For this reason, the oil that becomes supersaturated and is discharged can be easily separated from the cleaning liquid.
【００１４】なお、他の有機洗浄剤系では、一旦溶解し
た油分と洗浄剤との分離にエネルギーを要し、密度差分
離は不可能である。一方、水系洗浄剤では、密度差分離
は可能であるものの、洗浄後、被洗浄物の発錆の問題
や、洗浄液（水）の腐食の問題がある上に、付着油分の
剥離除去効果も十分でないことから、工業的に不利であ
る。[0014] In other organic detergent systems, energy is required to separate the once dissolved oil and the detergent, and density difference separation is impossible. On the other hand, with water-based cleaning agents, density difference separation is possible, but after cleaning, there is a problem of rusting of the object to be cleaned and a problem of corrosion of the cleaning liquid (water), and the effect of removing adhered oil is also sufficient It is not industrially disadvantageous because it is not.
【００１５】このような本発明の油付着物の洗浄方法
は、具体的には図１に示すような油付着物の洗浄装置に
より容易に実施される。図１は本発明の油付着物の洗浄
方法の実施に好適な洗浄装置を示す断面図である。図示
の洗浄装置は、洗浄液１を収容する洗浄槽２、被洗浄物
１０を吊持するための網篭３、洗浄槽２の温度調節を行
なうための、熱媒の導入口４Ａ及び排出口４Ｂを有する
ジャケット４、洗浄槽２の下部に設けられた、スプレー
ノズル５Ａを有する空気又は窒素等のガスのスプレーヘ
ッダー５、洗浄液１中の浮上した油分を分離回収するた
めのオイルスキマー装置６及び油分回収槽７で主に構成
される。The method for cleaning oily deposits of the present invention as described above can be easily carried out by an apparatus for cleaning oily deposits as shown in FIG. FIG. 1 is a sectional view showing a cleaning apparatus suitable for carrying out the method for cleaning oily deposits of the present invention. The illustrated cleaning apparatus includes a cleaning tank 2 for containing a cleaning liquid 1, a net cage 3 for suspending an object to be cleaned 10, a heat medium inlet 4A and an outlet 4B for adjusting the temperature of the cleaning tank 2. Jacket 4 having a spray nozzle, a spray header 5 provided with a spray nozzle 5A for a gas such as air or nitrogen, an oil skimmer device 6 for separating and collecting the floating oil component in the cleaning liquid 1, and an oil component. It is mainly composed of a recovery tank 7.
【００１６】図示の装置を用いて被洗浄物１０の洗浄を
行なうには、表面に油分が付着した被洗浄物１０を網篭
３の中に入れて降下させ、洗浄槽３の上記した化合物を
含む洗浄液１中に浸漬させる。そして、槽下部より空気
又は窒素ガスをスプレーヘッダー５を通じてスプレーノ
ズル５Ａにより吹き込み分散させ、被洗浄物１０にガス
分散流が当たるようにして付着している油分を剥離除去
させる。In order to clean the object 10 to be cleaned using the apparatus shown in the drawing, the object 10 to be cleaned having oil on its surface is put in the net basket 3 and lowered to remove the above compounds in the cleaning tank 3. Immerse it in the cleaning liquid 1 containing it. Then, air or nitrogen gas is blown from the lower part of the tank through the spray header 5 by the spray nozzle 5A to be dispersed, and the adhered oil component is peeled off so that the gas dispersion flow hits the object to be cleaned 10.
【００１７】被洗浄物１０から剥離され、洗浄液１の上
部に浮上した油分８は、若干の洗浄液と共にオイルスキ
マー装置６により分離され、油分回収槽７に回収され
る。油分回収槽７に回収された回収油分液９Ａと回収洗
浄液９Ｂとは、常法に従ってそれぞれ処理され、必要に
応じて再利用される。回収洗浄液９Ｂについては、その
まま、洗浄槽３に返送することもできる。The oil 8 separated from the object to be cleaned 10 and floated above the cleaning liquid 1 is separated by the oil skimmer device 6 together with some cleaning liquid, and is recovered in the oil recovery tank 7. The recovered oil liquid 9A and the recovered cleaning liquid 9B recovered in the oil recovery tank 7 are treated according to a conventional method and reused as necessary. The recovered cleaning liquid 9B can be returned to the cleaning tank 3 as it is.
【００１８】このようにして油分の除去を行なった後
は、被洗浄物１０を引き上げる。そして、必要に応じ、
水洗乾燥する。洗浄液１０は、油分８が浮上分離除去さ
れるため、長期にわたり、多数回のバッチ洗浄に使用す
ることができる。なお、図示の装置による洗浄方法は、
本発明の一実施例であって、本発明はその要旨を超えな
い限り、何ら図示の方法に限定されるものではない。例
えば、洗浄の際、細かいものは図示の如く、網篭に入れ
て洗浄されるが、大きなものは網篭に入れず直接洗浄す
ることができる。また、浸漬方式にしても、洗浄槽内部
に固定金具を設け、これに被洗浄物を固定して選奨する
こともできる。更に、浮上油分の分離除去方式について
も、オイルスキマー装置の他、オーバーフロー方式、そ
の他のものを採用することができ、また、洗浄槽の加温
方式も、図示の熱媒方式の他、スチーム方式、直接加温
方式等、各種のものを採用し得る。After the oil is removed in this manner, the article to be cleaned 10 is pulled up. And if necessary,
Wash with water and dry. Since the oil 8 is floated and removed from the cleaning liquid 10, the cleaning liquid 10 can be used for many batch cleanings over a long period of time. In addition, the cleaning method by the illustrated device is
It is one embodiment of the present invention, and the present invention is not limited to the illustrated method insofar as it does not exceed the gist thereof. For example, at the time of cleaning, fine ones are put in a net basket as shown in the drawing, and large ones can be directly washed without putting them in the net basket. Further, even in the immersion method, it is possible to provide a fixing metal fitting inside the cleaning tank, and fix the object to be cleaned to this for the purpose of selection. Further, as for the separation and removal method of the floating oil component, an oil skimmer device, an overflow method, and others can be adopted, and the heating method of the cleaning tank can be a steam method in addition to the heat medium method shown in the drawing. Various types such as a direct heating method can be adopted.
【００１９】このような本発明の方法において、洗浄処
理対象となる油分が付着した被洗浄物としては、電子部
品、電機部品、精密機械部品、樹脂加工部品、光学部品
等の精密部品、機械部品、自動車部品及びその組立加工
工程に使用される治工具類等が挙げられる。具体的に
は、電子部品としてはプリント配線基板、ＩＣリードフ
レーム、コンデンサー、液晶表示器、半導体材料等が挙
げられる。電機部品としては、コータ用コア等の部品、
マグネット、ブラシ、ハウジングなどの電動機部品等が
挙げられる。精密機械部品としてはベアリング、ミシン
部品、加工用部品等が挙げられる。光学部品としては、
レンズ等が挙げられる。機械部品としては軸受、歯車、
各種機械部品等が挙げられる。自動車用部品としてはエ
ンジン部品、ミッションギヤ、キャブレター等が挙げら
れる。また、このような部品の組立加工工程で使用され
る治具、工具類としては、上記精密部品を製造、成形、
加工、組立、仕上げ等の各種工程において取り扱われる
治具、工具等が挙げられる。In such a method of the present invention, the object to be cleaned to which the oil content is attached is an electronic part, an electric part, a precision machine part, a resin machined part, a precision part such as an optical part, or a mechanical part. , Automobile parts and jigs and tools used in the assembly process thereof. Specifically, examples of electronic components include printed wiring boards, IC lead frames, capacitors, liquid crystal displays, and semiconductor materials. As electric parts, parts such as coater cores,
Examples thereof include electric motor parts such as magnets, brushes, and housings. Examples of precision machine parts include bearings, sewing machine parts, and processing parts. As an optical component,
Examples include lenses. Mechanical parts include bearings, gears,
Examples include various mechanical parts. Examples of automobile parts include engine parts, transmission gears, and carburetors. Further, as jigs and tools used in the assembling process of such parts, the above precision parts are manufactured, molded,
Examples include jigs and tools that are handled in various processes such as processing, assembly, and finishing.
【００２０】これらの被洗浄物に付着する油分としては
油脂、機械油、切削油、グリース等が挙げられる。Examples of the oil adhering to these objects to be cleaned include fats and oils, machine oils, cutting oils, greases and the like.
【００２１】[0021]
【作用】前記した化合物は、油類等の脱脂洗浄性に優
れ、且つ、安全性及び作業環境衛生性が良好で環境汚染
性のない優れた洗浄剤である。被洗浄物をこのような洗
浄剤で浸漬洗浄する際、洗浄槽内にガスを吹き込むこと
により、付着油分を効率的に剥離除去することができ
る。The above-mentioned compounds are excellent detergents for degreasing and cleaning oils and the like, and having good safety and hygiene of the working environment and no environmental pollution. When dipping and cleaning the object to be cleaned with such a cleaning agent, the adhering oil component can be efficiently peeled and removed by blowing gas into the cleaning tank.
【００２２】しかして、剥離された油分は、吹き込みガ
スの気泡と共に、洗浄液中を効率的に浮上し、容易に密
度差分離することができる。これは、本発明で洗浄剤と
して用いる前記した化合物の、有機溶剤でありながら水
に無限大に溶解し、かつ油分を剥離させて、溶かさず浮
上分離させるといった特異的な特性を利用したものであ
る。即ち、前記した化合物は、前述の如く、油分を飽和
となるまで溶解するものの、その飽和溶解度が低いこと
から、過飽和油分を排出して容易に分離することができ
る。Thus, the peeled oil is efficiently floated in the cleaning liquid together with the bubbles of the blown gas, and the density difference can be easily separated. This utilizes the specific characteristics of the above-mentioned compound used as a cleaning agent in the present invention, which is an organic solvent infinitely soluble in water, peels oil, and floats without being dissolved. is there. That is, as described above, the above-mentioned compound dissolves the oil component until it becomes saturated, but its saturated solubility is low, so that the supersaturated oil component can be discharged and easily separated.
【００２３】本発明においては、このような前記した化
合物特有の性質を利用すると共に、ガス吹き込み浸漬洗
浄法を組み合せて採用することにより、短時間で、油付
着被洗浄物から油分を容易かつ効率的に洗浄除去するこ
とを可能とすると共に、洗浄液からの油分の除去も容易
とした。本発明によれば、従来のトリクロルエタン系洗
浄剤を用いる場合とほぼ同程度の洗浄時間で油分を除去
することができ、しかも、油分を容易に浮上分離できる
ことから、洗浄廃液の処理も容易とされる。因みに、ト
リクロルエタン系洗浄剤の場合には、洗浄廃液の全量を
油分回収処理するか、或いは、定期的に洗浄液の入れ替
えを行なうなどの煩雑な処理が必要となり、工業的に不
利である。In the present invention, by utilizing such properties peculiar to the above-mentioned compounds and combining the gas blowing immersion cleaning method, the oil content can be easily and efficiently removed from the oil-adhered object to be cleaned in a short time. It was possible to remove the oil component from the cleaning liquid easily, as well as to remove the oil component from the cleaning liquid. According to the present invention, it is possible to remove the oil component in almost the same cleaning time as in the case of using the conventional trichloroethane-based cleaning agent, and moreover, since the oil component can be easily floated and separated, the treatment of the cleaning waste liquid is facilitated. To be done. By the way, in the case of a trichloroethane-based detergent, it is industrially disadvantageous because a complicated treatment such as an oil recovery treatment of the entire amount of the washing waste liquid or periodic replacement of the washing liquid is required.
【００２４】[0024]
【実施例】以下に具体的な実施例及び比較例を挙げて、
本発明をより詳細に説明する。 実施例１〜４ 表１に示す材質のテストピース（２．９８ｃｍ×４．９
８ｃｍ×０．３ｃｍ厚さ）を、２０個、ランダムに金網
篭の中に入れ、切削油中に浸漬した後、引き上げた。[Examples] Specific examples and comparative examples are given below,
The present invention will be described in more detail. Examples 1 to 4 Test pieces of the materials shown in Table 1 (2.98 cm x 4.9)
20 pieces (8 cm × 0.3 cm thickness) were randomly placed in a wire netting basket, immersed in cutting oil, and then pulled up.
【００２５】γ−ブチロラクトン（ＧＢＬ）と水との混
合物からなる表−１に示す配合の洗浄剤を収容した図１
に示す装置の洗浄槽に、この篭ごと上記２０個のテスト
ピースを浸漬した。この洗浄槽の液温は７０℃である。
表−１に示す時間浸漬した後、この篭ごとテストピース
を取り出した。なお、浸漬洗浄中、空気の吹き込みを、
洗浄剤１リットル当り０．６３Ｎｌ／分の割合で行なう
と共に、オイルスキマー装置により浮上油分の分離回収
を行なった。このテストピースを水洗、乾燥した後、表
面の油の残存状態を肉眼観察して評価した。また、テス
トピースにセロテープを貼り、その付着性を調べると共
に、白布でテストピースの表面をこすった際の汚れの有
無を調べた。結果を表−１に示す。FIG. 1 containing a cleaning agent containing a mixture of γ-butyrolactone (GBL) and water and having the composition shown in Table 1.
The above 20 test pieces together with the basket were immersed in the cleaning tank of the apparatus shown in FIG. The liquid temperature of this cleaning tank is 70 ° C.
After soaking for the time shown in Table-1, the test piece was taken out together with the basket. In addition, during immersion cleaning, blow air,
It was carried out at a rate of 0.63 Nl / min per liter of cleaning agent, and the floating oil component was separated and collected by an oil skimmer device. After this test piece was washed with water and dried, the residual state of oil on the surface was visually observed and evaluated. In addition, a cellophane tape was attached to the test piece, and the adhesiveness was examined, and the presence or absence of stains when the surface of the test piece was rubbed with a white cloth was also examined. The results are shown in Table-1.
【００２６】実施例５〜６ 実施例１〜４において洗浄剤をそれぞれ表−１に示す化
合物及び配合で用いて行なったこと以外は同様にしてテ
ストピースの洗浄を行ない、洗浄効果の評価結果を表−
１に示した。Examples 5 to 6 The test pieces were washed in the same manner as in Examples 1 to 4 except that the detergents and compounds shown in Table 1 were used. Table-
Shown in 1.
【００２７】比較例１〜４ 実施例１〜４において、空気の吹き込みを行なわなかっ
たこと以外は同様にしてテストピースの洗浄を行ない、
洗浄効果の評価結果を表−１に示した。Comparative Examples 1 to 4 The test pieces were washed in the same manner as in Examples 1 to 4 except that air was not blown in,
The evaluation results of the cleaning effect are shown in Table-1.
【００２８】比較例５ 実施例３において、洗浄剤として１，１，１−トリクロ
ルエタンを用いたこと以外はテストピースの洗浄を同様
にして行ない、洗浄効果の評価結果を表−１に示した。Comparative Example 5 The test piece was cleaned in the same manner as in Example 3 except that 1,1,1-trichloroethane was used as the cleaning agent, and the cleaning effect evaluation results are shown in Table 1. .
【００２９】[0029]
【表１】 [Table 1]
【００３０】表−１より、本発明の方法によれば、短時
間で付着油分を効率的に洗浄除去することができること
が明らかである。このような本発明の効果は、特定の洗
浄剤と洗浄方法とを採用することによる効果であり、洗
浄方法は同様であっても洗浄剤が異なる場合（比較例
５）や、洗浄剤が同一であっても洗浄方法が異なる場合
（比較例１〜４）には、このような優れた効果は得られ
ない。From Table 1, it is clear that the method of the present invention can efficiently remove the adhering oil component by washing in a short time. Such an effect of the present invention is an effect obtained by adopting a specific cleaning agent and a cleaning method. Even when the cleaning method is the same, the cleaning agent is different (Comparative Example 5) or the cleaning agent is the same. However, when the cleaning method is different (Comparative Examples 1 to 4), such excellent effects cannot be obtained.
【００３１】[0031]
【発明の効果】以上詳述した通り、本発明の油付着物の
洗浄方法によれば、油分の脱脂洗浄効果に優れ、しかも
安全性及び作業環境衛生性が良好で、環境汚染のおそれ
のない、良好な洗浄剤を用いて、油分が付着した被洗浄
物を効率的に洗浄して良好な洗浄処理品を得ることがで
きると共に、被洗浄物から洗浄除去された油分を効率的
に除去し、洗浄廃液の処理作業の軽減及び処理コストの
低減が図れる。As described above in detail, according to the method for cleaning oily deposits of the present invention, the effect of degreasing and cleaning of oil components is excellent, the safety and the working environment hygiene are good, and there is no risk of environmental pollution. By using a good cleaning agent, it is possible to efficiently wash the object to be washed with oil and obtain a good washed product, and to efficiently remove the oil that has been washed and removed from the object to be washed. It is possible to reduce the processing work of the cleaning waste liquid and the processing cost.
【図１】本発明の油付着物の洗浄方法の実施に好適な洗
浄装置を示す断面図である。FIG. 1 is a cross-sectional view showing a cleaning device suitable for carrying out a method for cleaning oily deposits of the present invention.
１ 洗浄液 ２ 洗浄槽 ３ 網篭 ５ スプレーヘッダー ５Ａ スプレーノズル ６ オイルスキマー装置 ７ 油分回収槽 １０ 被洗浄物 1 Cleaning Liquid 2 Cleaning Tank 3 Net Basket 5 Spray Header 5A Spray Nozzle 6 Oil Skimmer Device 7 Oil Recovery Tank 10 Cleaning Object
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年１０月９日[Submission date] October 9, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１１[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１１】洗浄槽の下部に設けるヘッダー及びノズル
は、吹き出したガスが被洗浄物に直接に当たるように、
設置姿勢、配置個数、配置位置等を選定するのが好まし
い。この場合、ガスの吹き出し量は、被洗浄物に付着し
ている油分を物理的に剥ぎ取る効果と、洗浄剤と被洗浄
物の接触を良くし、油分を化学的に除去する効果の両方
の効果が十分に達成されるものであれば良い。被洗浄物
の形状及び大きさ等により異なり一概には言えないが、
ガスノズルからのガスの噴出線速をできるだけ大きくす
るのが効果的である。このガスとしては、空気又は窒素
等が好適である。通常の場合、ガス吹き込み量は、洗浄
剤１リットル当り、０．２〜２０ノルマルリットル（Ｎ
ｌ）／分の範囲とするのが好ましい。The header and nozzle provided at the bottom of the cleaning tank are designed so that the blown gas directly hits the object to be cleaned.
It is preferable to select the installation posture, the number of arrangements, the arrangement positions, and the like. In this case, the amount of gas blown out has both the effect of physically removing the oil component adhering to the object to be cleaned and the effect of chemically removing the oil component by improving the contact between the cleaning agent and the object to be cleaned. Any effect can be achieved. It depends on the shape and size of the object to be cleaned and cannot be stated in general.
It is effective to increase the linear velocity of the gas ejected from the gas nozzle as much as possible. Air, nitrogen or the like is suitable as this gas. In a normal case, the amount of gas blown is 0.2 to 20 normal liters (N) per liter of the cleaning agent.
1) / minute is preferable.
Claims (2)
ロリドン、γ−ブチロラクトン、Ｎ，Ｎ−ジメチルアセ
トアミドの中から選ばれる少なくとも一種と水とを含む
洗浄剤を収容した洗浄槽中に浸漬させて洗浄するに際
し、該洗浄槽内にガスを吹き込んで前記被洗浄物に付着
している油分を除去すると共に浮上分離させ、次いでこ
の浮上した油分を該洗浄槽から分離除去することを特徴
とする油付着物の洗浄方法。1. A cleaning tank containing a cleaning agent containing at least one selected from 2-pyrrolidone, γ-butyrolactone and N, N-dimethylacetamide and water is placed on the object to be cleaned having oil adhered to the surface thereof. In the immersion and cleaning, a gas is blown into the cleaning tank to remove the oil component adhering to the object to be cleaned and to float and separate, and then the floating oil component is separated and removed from the cleaning tank. The method for cleaning oil deposits.
ロリドン、γ−ブチロラクトン、Ｎ，Ｎ−ジメチルアセ
トアミドの中から選ばれる少なくとも一種と水とを含む
洗浄剤を収容する洗浄槽、該洗浄槽内の下部に設けられ
たガス分散器と、該ガス分散器にガスを供給する手段と
からなり、該ガス分散器からガスを洗浄剤中に吹き込
み、被洗浄物に付着する油分の除去並びに該油分の浮上
分離を促進させるガス導入装置、及び、浮上した油分を
該洗浄槽から分離除去するための油分除去装置を備えて
なることを特徴とする油付着物の洗浄装置。2. A cleaning tank containing a cleaning agent containing water and at least one selected from 2-pyrrolidone, γ-butyrolactone, and N, N-dimethylacetamide for cleaning an object to be cleaned having oil on its surface, It consists of a gas disperser provided in the lower part of the cleaning tank and a means for supplying gas to the gas disperser. The gas is blown into the cleaning agent from the gas disperser to remove oil adhering to the object to be cleaned. And a gas introduction device for promoting floating separation of the oil component, and an oil removing device for separating and removing the floating oil component from the cleaning tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22037092A JPH0665772A (en) | 1992-08-19 | 1992-08-19 | Method for cleaning oil sticking material therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22037092A JPH0665772A (en) | 1992-08-19 | 1992-08-19 | Method for cleaning oil sticking material therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0665772A true JPH0665772A (en) | 1994-03-08 |
Family
ID=16750065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22037092A Pending JPH0665772A (en) | 1992-08-19 | 1992-08-19 | Method for cleaning oil sticking material therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0665772A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100750688B1 (en) * | 2005-06-17 | 2007-08-22 | 서영철 | Exhaustion chimney for supplying hot air |
| CN103924256A (en) * | 2014-05-01 | 2014-07-16 | 湖州华鼎贸易有限公司 | Novel aluminum alloy detergent |
| US8877357B1 (en) | 2009-12-15 | 2014-11-04 | SDCmaterials, Inc. | Impact resistant material |
| CN104213129A (en) * | 2014-09-20 | 2014-12-17 | 常熟市天河机械设备制造有限公司 | Water-based metal cleaning agent |
| CN104562064A (en) * | 2014-11-27 | 2015-04-29 | 镇江润德节能科技有限公司 | Industrial water-base detergent for metals |
| US9149797B2 (en) | 2009-12-15 | 2015-10-06 | SDCmaterials, Inc. | Catalyst production method and system |
| US9180423B2 (en) | 2005-04-19 | 2015-11-10 | SDCmaterials, Inc. | Highly turbulent quench chamber |
-
1992
- 1992-08-19 JP JP22037092A patent/JPH0665772A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9180423B2 (en) | 2005-04-19 | 2015-11-10 | SDCmaterials, Inc. | Highly turbulent quench chamber |
| KR100750688B1 (en) * | 2005-06-17 | 2007-08-22 | 서영철 | Exhaustion chimney for supplying hot air |
| US8877357B1 (en) | 2009-12-15 | 2014-11-04 | SDCmaterials, Inc. | Impact resistant material |
| US9149797B2 (en) | 2009-12-15 | 2015-10-06 | SDCmaterials, Inc. | Catalyst production method and system |
| CN103924256A (en) * | 2014-05-01 | 2014-07-16 | 湖州华鼎贸易有限公司 | Novel aluminum alloy detergent |
| CN104213129A (en) * | 2014-09-20 | 2014-12-17 | 常熟市天河机械设备制造有限公司 | Water-based metal cleaning agent |
| CN104562064A (en) * | 2014-11-27 | 2015-04-29 | 镇江润德节能科技有限公司 | Industrial water-base detergent for metals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6569252B1 (en) | Semi-aqueous solvent cleaning of paste processing residue from substrates | |
| US5741365A (en) | Continuous method for cleaning industrial parts using a polyorganosiloxane | |
| JPH0665772A (en) | Method for cleaning oil sticking material therefor | |
| EP0662529B1 (en) | Degreasing cleaner and method for cleaning oil-deposited material | |
| JPH06220671A (en) | Oil deposit cleaning device | |
| JP2816805B2 (en) | Cleaning method | |
| JPH08245988A (en) | Cleaning agent composition | |
| JPH06170346A (en) | Method for washing oil-stained material | |
| JP2639733B2 (en) | Detergent composition | |
| JPH03162496A (en) | Detergent composition | |
| JPH06211718A (en) | Composition comprising 1-chloro-2,2,2-trifluoroethyl- difluoromethyl ether and partially fluorinated alkanol, cooling lubricant comprising same, surface cleaning and removal of water | |
| JPH06256984A (en) | Washing device for object stained with oil | |
| JPH062182A (en) | Oil deposition washing method, washing device and detergent | |
| JPH06306663A (en) | Oil component cleaning device | |
| JPH06256983A (en) | Washing device for object stained with oil | |
| JPH0770780A (en) | Washing device for oil deposits | |
| JPH06114357A (en) | Method for cleaning oil-stained matter | |
| JPH0768551B2 (en) | Cleaning composition | |
| JPH073481A (en) | Equipment for cleaning greasy parts | |
| JPH06287785A (en) | Method for cleaning off oil | |
| JPH06313197A (en) | Degreasing detergent | |
| JPH06296941A (en) | Method and device for precision cleaning | |
| JPH0665770A (en) | Method for cleaning oil sticking material and device therefor | |
| JPH0665769A (en) | Defatting detergent | |
| JP2001137792A (en) | Cleaning method |