JPH07100447A - Degreasing cleaning method for closed system - Google Patents
Degreasing cleaning method for closed systemInfo
- Publication number
- JPH07100447A JPH07100447A JP24774393A JP24774393A JPH07100447A JP H07100447 A JPH07100447 A JP H07100447A JP 24774393 A JP24774393 A JP 24774393A JP 24774393 A JP24774393 A JP 24774393A JP H07100447 A JPH07100447 A JP H07100447A
- Authority
- JP
- Japan
- Prior art keywords
- water
- oil
- cleaning
- membrane
- returned
- 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)
- Separation Using Semi-Permeable Membranes (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、機械部品、電子部品
その他の脱脂洗浄を行うに当たり、洗浄液として純水を
用い、システムをクローズド化したクローズドシステム
脱脂洗浄方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closed system degreasing / cleaning method in which pure water is used as a cleaning liquid for cleaning and degreasing mechanical parts, electronic parts and others.
【0002】[0002]
【従来技術および解決すべき課題】従来、機械部品、電
子部品その他の脱脂洗浄は、フロン、トリクロロエタン
等の有機溶剤からなる洗浄液、酸またはアルカリ系の洗
浄液等を用いて行われていた。2. Description of the Related Art Conventionally, degreasing cleaning of mechanical parts, electronic parts and the like has been carried out by using a cleaning liquid composed of an organic solvent such as CFC and trichloroethane, an acid or alkaline cleaning liquid and the like.
【0003】しかしながら、有機溶剤からなる洗浄液を
用いる方法では、有機溶剤による環境破壊の問題がある
ので、その使用が制限されつつあり、これに代わる溶剤
の開発が待たれている。他方、酸またはアルカリ系の洗
浄液や、合成洗剤からなる洗浄液を用いる方法では、洗
浄排水の処理が欠かせず、排水の再生処理装置、再生で
きない排水の中和処理装置ならびに生物化学処理装置が
必要となり、さらに各装置に貯蔵タンクを設けなけねば
ならず、処理装置が大型化し、メンテナンスもそれだけ
繁雑となる嫌いがある。However, the method using a cleaning liquid composed of an organic solvent has a problem of environmental destruction due to the organic solvent, and therefore its use is being limited, and the development of a solvent replacing it is awaited. On the other hand, in the method that uses an acid or alkaline cleaning solution or a cleaning solution composed of a synthetic detergent, the treatment of cleaning wastewater is essential, and a wastewater regeneration treatment device, a non-renewable wastewater neutralization treatment device, and a biochemical treatment device are required. In addition, each apparatus must be provided with a storage tank, the processing apparatus becomes large and maintenance is complicated.
【0004】本発明の目的は、上記の点に鑑み、洗浄液
として純水を用い、システムをクローズド化することに
より、排水処理操作を簡便にし、設備をコンパクトなも
のとすることができるクローズドシステム脱脂洗浄方法
を提供することにある。In view of the above points, an object of the present invention is to use a pure water as a cleaning liquid and to make the system closed, so that the wastewater treatment operation can be simplified and the equipment can be made compact. It is to provide a cleaning method.
【0005】[0005]
【課題を解決するための手段】この発明によるクローズ
ドシステム脱脂洗浄方法は、上記目的を達成すべく工夫
されたものであり、純水製造装置(1) から来る純水を用
いて洗浄工程で脱脂洗浄を行い、洗浄工程から出る排水
を第1膜式油水分離装置(5) で油水分離処理し、同装置
(5) の膜を通った透過水の一部を洗浄工程に戻すと共
に、浮上分離した油分を取り除き、上記透過水の残部を
貯水タンク(6) を経て限外濾過装置(7) へ送って限外濾
過処理し、限外濾過膜を通った透過水を純水製造装置
(1) に戻すと共に、同膜を通過しなかった濃縮水を第2
膜式油水分離装置(8) で油水分離処理し、同装置(8) の
膜を通った透過水を貯水タンク(6) に戻すと共に、浮上
分離した油分を取り除くことを特徴とするものである。The closed system degreasing and cleaning method according to the present invention has been devised to achieve the above-mentioned object, and degreasing is performed in the cleaning step using pure water coming from the pure water producing device (1). After cleaning, the wastewater discharged from the cleaning process is separated into oil and water by the first membrane-type oil-water separator (5).
Part of the permeated water that has passed through the membrane in (5) is returned to the washing process, the oil that has floated and separated is removed, and the remaining part of the permeated water is sent to the ultrafiltration device (7) via the water storage tank (6). Ultrapure water treatment equipment and pure water production equipment for the permeated water that has passed through the ultrafiltration membrane
When returning to (1), concentrate water that did not pass through the membrane is
It is characterized in that the membrane-type oil-water separator (8) separates the oil and water, returns the permeated water that has passed through the membrane of the device (8) to the water storage tank (6), and removes the floating-separated oil. .
【0006】[0006]
【実施例】図1は、この発明のクローズドシステム脱脂
洗浄方法を示すフローチャートである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a flow chart showing a closed system degreasing cleaning method of the present invention.
【0007】図1において市水、工業用水等の原水は純
水製造装置(1) に送り、生産された純水は洗浄装置(9)
に送られる。In FIG. 1, raw water such as city water and industrial water is sent to a pure water producing device (1), and the pure water produced is a cleaning device (9).
Sent to.
【0008】洗浄装置(9) は前洗浄槽(3) と本洗浄槽
(2) とを備えており、純水製造装置(1) からの純水は本
洗浄槽(2) に入る。前洗浄槽(3) には本洗浄槽(2) から
洗浄水がオーバーフローにより供給される。The cleaning device (9) includes a pre-cleaning tank (3) and a main cleaning tank.
(2) is provided, and pure water from the pure water producing device (1) enters the main cleaning tank (2). The washing water is supplied from the main washing tank (2) to the pre-washing tank (3) by overflow.
【0009】被洗浄物が洗浄装置(9) において前洗浄つ
いで本洗浄に付されると、洗浄排水は前洗浄槽(3) から
排水ポンプ(4) により第1膜式油分離装置(5) に送ら
れ、油水分離処理される。同分離装置(5) の膜を通った
透過水の一部は洗浄工程の前洗浄槽(3) に戻される。ま
た、第1膜式油水分離装置(5) において浮上分離した油
分は自動的に同装置から取り除かれ、回収処理される。
これにより、前洗浄槽(3) の洗浄液の油分濃度が低く保
たれ、純水の供給量を減らすことができる。When the object to be cleaned is subjected to the pre-cleaning and then the main cleaning in the cleaning device (9), the cleaning waste water is discharged from the pre-cleaning tank (3) by the drain pump (4) to the first membrane type oil separation device (5). It is sent to and separated into oil and water. Part of the permeated water that has passed through the membrane of the separation device (5) is returned to the pre-cleaning tank (3) for the cleaning process. Further, the oil component floated and separated in the first membrane type oil / water separator (5) is automatically removed from the same device and collected.
As a result, the oil concentration of the cleaning liquid in the pre-cleaning tank (3) is kept low, and the amount of pure water supplied can be reduced.
【0010】第1膜膜式油水分離装置(5) から出る透過
水の残部(この量は本洗浄槽(2) から前洗浄層(3) へオ
ーバーフローする洗浄用純水の量に相当する)は、貯水
タンク(6) に送られる。貯水タンク(6) に溜まった排水
は限外濾過送水ポンプ(10)により限外濾過装置(7) に送
られ、限外濾過処理される。そして、限外濾過膜を通っ
た透過水は純水製造装置(1) に戻され、同膜を通過しな
かった濃縮水は第2膜式油水分離装置(8) へ送られ、油
水分離処理される。Remaining permeated water from the first membrane-type oil-water separator (5) (this amount corresponds to the amount of pure water for cleaning which overflows from the main cleaning tank (2) to the pre-cleaning layer (3)) Is sent to the water tank (6). The waste water collected in the water storage tank (6) is sent to the ultrafiltration device (7) by the ultrafiltration water supply pump (10) and subjected to ultrafiltration treatment. Then, the permeated water that has passed through the ultrafiltration membrane is returned to the pure water production device (1), and the concentrated water that has not passed through the membrane is sent to the second membrane oil / water separator (8) for oil / water separation treatment. To be done.
【0011】第2膜式分離装置(8) の膜を通った透過水
は貯水タンク(6) に戻される。また、第2膜式油水分離
装置(8) において浮上分離した油分は自動的に同装置か
ら取り除かれ、回収処理される。The permeated water that has passed through the membrane of the second membrane type separation device (8) is returned to the water storage tank (6). Further, the oil component floated and separated in the second membrane type oil / water separation device (8) is automatically removed from the device and collected.
【0012】クローズドシステム系外への排水は純水製
造装置(1) から濃縮水として排水される。Wastewater to the outside of the closed system system is discharged as concentrated water from the pure water producing apparatus (1).
【0013】[0013]
【発明の効果】この発明によるクローズドシステム脱脂
洗浄方法は、以上の如く構成されているので、次のよう
な効果を発揮する。Since the closed system degreasing and cleaning method according to the present invention is constructed as described above, it exhibits the following effects.
【0014】・洗浄液として純水を使用するため、中
和処理装置や生物処理装置などの大型装置が必要でな
い。Since pure water is used as the cleaning liquid, a large-scale device such as a neutralization treatment device or a biological treatment device is not required.
【0015】・油分の分離回収を簡単に行うことがで
きる。It is possible to easily separate and collect the oil component.
【0016】・洗浄液として純水を使用するため、排
水の再生が従来方式に比べ簡単に行うことができ、回収
効率が高い。Since pure water is used as the cleaning liquid, the waste water can be regenerated more easily than the conventional method, and the recovery efficiency is high.
【0017】・廃水処理装置として膜式油水分離装置
と限外濾過装置を設けるだけでよく、化学洗浄剤を用い
た洗浄装置における排水処理設備に比し、小型でコンパ
クトな設備でよい。As a wastewater treatment device, only a membrane type oil / water separator and an ultrafiltration device need be provided, and the equipment is smaller and more compact than the wastewater treatment equipment in a cleaning device using a chemical detergent.
【図1】この発明のクローズドシステム脱脂洗浄方法を
示すフローチャートである。FIG. 1 is a flowchart showing a closed system degreasing cleaning method of the present invention.
【符号の説明】 1:純水製造装置 5:第1膜式油水分離装置 6:貯水タンク 7:限外濾過装置 8:第2膜式油水分離装置 9:洗浄装置[Explanation of reference numerals] 1: Pure water producing device 5: First membrane type oil / water separator device 6: Water storage tank 7: Ultrafiltration device 8: Second membrane type oil / water separator device 9: Washing device
Claims (1)
洗浄工程で脱脂洗浄を行い、洗浄工程から出る排水を第
1膜式油水分離装置(5) で油水分離処理し、同装置(5)
の膜を通った透過水の一部を洗浄工程に戻すと共に、浮
上分離した油分を取り除き、上記透過水の残部を貯水タ
ンク(6) を経て限外濾過装置(7) へ送って限外濾過処理
し、限外濾過膜を通った透過水を純水製造装置(1) に戻
すと共に、同膜を通過しなかった濃縮水を第2膜式油水
分離装置(8) で油水分離処理し、同装置(8) の膜を通っ
た透過水を貯水タンク(6) に戻すと共に、浮上分離した
油分を取り除くことを特徴とするクローズドシステム脱
脂洗浄方法。1. A degreasing cleaning is performed in a cleaning process using pure water coming from a pure water producing device (1), and wastewater discharged from the cleaning process is separated into oil and water by a first membrane type oil and water separating device (5). Equipment (5)
Part of the permeated water that has passed through the membrane is returned to the washing process, the oil that has floated and separated is removed, and the remaining part of the permeated water is sent to the ultrafiltration device (7) via the water storage tank (6) and ultrafiltered. The permeated water that has passed through the ultrafiltration membrane is returned to the pure water production device (1), and the concentrated water that has not passed through the same membrane is separated into oil and water by the second membrane oil-water separator (8). A closed system degreasing and cleaning method characterized in that permeated water that has passed through the membrane of the device (8) is returned to the water storage tank (6), and the oil that has floated and separated is removed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24774393A JPH07100447A (en) | 1993-10-04 | 1993-10-04 | Degreasing cleaning method for closed system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24774393A JPH07100447A (en) | 1993-10-04 | 1993-10-04 | Degreasing cleaning method for closed system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH07100447A true JPH07100447A (en) | 1995-04-18 |
Family
ID=17168014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24774393A Pending JPH07100447A (en) | 1993-10-04 | 1993-10-04 | Degreasing cleaning method for closed system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07100447A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100693029B1 (en) * | 2002-07-11 | 2007-03-12 | 동 석 강 | Apparatus and method for separating oil in the emulsion |
CN103058402A (en) * | 2012-11-19 | 2013-04-24 | 浙江省海洋开发研究院 | Oily waste water processing device and method |
JP2013252478A (en) * | 2012-06-06 | 2013-12-19 | Swing Corp | Treatment method and treatment device of oil component-containing drainage |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04225875A (en) * | 1990-04-13 | 1992-08-14 | Duerr Gmbh | Method and device for washing object with water washing fluid containing washing agent |
JPH04317790A (en) * | 1991-04-17 | 1992-11-09 | Sumitomo Bakelite Co Ltd | Method for making pure water |
JPH05116A (en) * | 1991-06-24 | 1993-01-08 | Matsushita Electric Works Ltd | Kitchen cabinet |
-
1993
- 1993-10-04 JP JP24774393A patent/JPH07100447A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04225875A (en) * | 1990-04-13 | 1992-08-14 | Duerr Gmbh | Method and device for washing object with water washing fluid containing washing agent |
JPH04317790A (en) * | 1991-04-17 | 1992-11-09 | Sumitomo Bakelite Co Ltd | Method for making pure water |
JPH05116A (en) * | 1991-06-24 | 1993-01-08 | Matsushita Electric Works Ltd | Kitchen cabinet |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100693029B1 (en) * | 2002-07-11 | 2007-03-12 | 동 석 강 | Apparatus and method for separating oil in the emulsion |
JP2013252478A (en) * | 2012-06-06 | 2013-12-19 | Swing Corp | Treatment method and treatment device of oil component-containing drainage |
CN103058402A (en) * | 2012-11-19 | 2013-04-24 | 浙江省海洋开发研究院 | Oily waste water processing device and method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19960903 |