JPH0146162B2 - - Google Patents
Info
- Publication number
- JPH0146162B2 JPH0146162B2 JP62137446A JP13744687A JPH0146162B2 JP H0146162 B2 JPH0146162 B2 JP H0146162B2 JP 62137446 A JP62137446 A JP 62137446A JP 13744687 A JP13744687 A JP 13744687A JP H0146162 B2 JPH0146162 B2 JP H0146162B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- cleaning
- solvent
- recovery
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、金属・木材・皮革・プラスチツク等
の金属等加工物における洗浄用溶剤液の回収装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for recovering a cleaning solvent solution for metal workpieces such as metal, wood, leather, and plastic.
金属等加工物の表面には油脂、ゴミ、金属質残
渣等が汚れとして付着していることが多く、たと
えば熱処理工程や熱処理メツキ工程等を万全なも
のにするためには、その前後に工業用洗浄が必要
である。
Oil, fat, dust, metallic residue, etc. often adhere to the surface of metal workpieces as dirt, so in order to ensure the perfect performance of heat treatment and heat treatment plating processes, it is necessary to use industrial Cleaning required.
従来行われている洗浄方法としては、金属等加
工物（以下単にワークともいう）を有機溶剤中に
浸漬したり、蒸気洗浄槽を用いた多段階洗浄が一
般的である。この蒸気洗浄は大気圧下で行われる
もので、気相中に冷却したワークを載置すると、
ワークの表面に凝縮した溶剤を油脂を溶解除去
し、その際油脂とともに付着している塵埃なども
一緒に洗い落すものである。 Conventional cleaning methods generally include immersing a metal workpiece (hereinafter simply referred to as a workpiece) in an organic solvent or multi-stage cleaning using a steam cleaning tank. This steam cleaning is performed under atmospheric pressure, and when the cooled workpiece is placed in the gas phase,
The solvent that has condensed on the surface of the workpiece is used to dissolve and remove fats and oils, and at the same time, the dust and other particles attached to the fats and oils are also washed away.
さらに上記洗浄方法の効率を向上させるため、
超音波やバレル等の外力を付加したものも実施さ
れている。 Furthermore, in order to improve the efficiency of the above cleaning method,
Methods that apply external force such as ultrasonic waves or barrels have also been implemented.
上述した方法で用いられるところの、従来実施
されている回収装置には、洗浄槽からの汚れた溶
剤液を受け入れる蒸留槽とこの蒸留槽からの蒸気
を冷却して回収する清液タンクとが存在するだけ
であつたため、蒸留槽から清液タンクに溶剤液を
回収する効率が良くなく、かつ洗浄系路が外気と
隔離されていないため溶剤を大気中へ自然放出し
てしまう量が多く、その結果溶剤の消費量が増
え、さらには公害問題も発生するに至つていた。 The conventional recovery equipment used in the above-mentioned method includes a distillation tank that receives the dirty solvent liquid from the cleaning tank and a clean liquid tank that cools and collects the vapor from the distillation tank. The efficiency of recovering the solvent from the distillation tank to the fresh liquid tank was not good, and the cleaning system path was not isolated from the outside air, so a large amount of solvent was naturally released into the atmosphere. As a result, the amount of solvent consumed increased, and pollution problems also occurred.
本発明の目的は、上記の問題点を解消し、洗浄
用溶剤液の回収効率が大きく、そのため溶剤の消
費量が少なくなる金属等加工物の洗浄用溶剤液の
回収装置を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a recovery device for a cleaning solvent solution for metal workpieces, which has a high recovery efficiency and therefore reduces the amount of solvent consumed. .
本発明は、外気と隔離された洗浄槽及びその系
路を有する金属等加工物の洗浄システムにおい
て、前記洗浄槽の下方経路中に、ヒーターを設け
た蒸留槽を設け、さらにその下方経路中に冷却器
と回収タンクを順次設け、この回収タンクの下方
経路中に回収タンクからの溶剤液を移送受け入れ
する清液タンクを設け、前記回収タンクと清液タ
ンク間の経路中に真空ポンプを配設し、清液タン
クから前記洗浄槽内に溶剤液を配送するパイプを
設けたことを特徴とする金属加工物の洗浄用溶剤
液の回収装置である。
The present invention provides a cleaning system for metal workpieces having a cleaning tank isolated from outside air and its system, in which a distillation tank equipped with a heater is provided in the lower path of the cleaning tank, and further in the lower path. A cooler and a recovery tank are installed in sequence, a fresh liquid tank is installed in the path below the recovery tank to transfer and receive the solvent liquid from the recovery tank, and a vacuum pump is installed in the path between the recovery tank and the fresh liquid tank. The apparatus for recovering a solvent liquid for cleaning metal workpieces is characterized in that a pipe is provided for delivering the solvent liquid from the fresh liquid tank to the cleaning tank.
次に本発明を図面の実施例について説明する。
図面は本発明装置の一実施例のブロツク図であ
る。
Next, the present invention will be described with reference to embodiments shown in the drawings.
The drawing is a block diagram of one embodiment of the device of the present invention.
まずワーク１を収容した洗浄槽２内を真空ポン
プ４を介して真空状態にする（第一工程）。 First, the inside of the cleaning tank 2 containing the workpiece 1 is brought into a vacuum state via the vacuum pump 4 (first step).
具体的にはバルブV2を開き、バルブV1，V3を
閉じ、真空ポンプ４を作動させて洗浄槽２内の空
気を清液タンク６ｂ、フイルター７を経由して大
気中に排出することにより行われる。これにより
ワーク１の凹部や隙間内に存する油脂等が洗浄槽
内の空気と共に押出されてくる。 Specifically, this is done by opening valve V2, closing valves V1 and V3, and operating vacuum pump 4 to discharge the air in cleaning tank 2 to the atmosphere via fresh liquid tank 6b and filter 7. . As a result, oils and fats existing in the recesses and gaps of the workpiece 1 are pushed out together with the air in the cleaning tank.
ついで清液タンク６ｂと洗浄槽２間のバルブ
V1を開き、バルブV2に閉じ、パイプ１０を経由
して溶剤液をシヤワー栓３からワーク１に噴射す
る（第二工程）。 Next, the valve between the fresh liquid tank 6b and the cleaning tank 2
V1 is opened, valve V2 is closed, and the solvent liquid is injected from the shower plug 3 onto the workpiece 1 via the pipe 10 (second step).
このとき、洗浄槽内は直前まで真空状態である
から、溶剤液がワークの凹部や隙間内にきわめて
簡単かつ確実に侵入することができ、さらに溶剤
液によりワーク自体が冷却されることとなる。 At this time, since the inside of the cleaning tank is in a vacuum state until just before cleaning, the solvent liquid can enter the recesses and gaps of the workpiece very easily and reliably, and furthermore, the workpiece itself is cooled by the solvent liquid.
この第二工程において、噴射された溶剤液によ
り油脂等の洗い流しが行われる。ワークに噴射さ
れた溶剤液は洗浄槽２の底部に貯留され、次の蒸
気洗浄時の加熱蒸発に備えることとなる。 In this second step, oils and fats and the like are washed away with the sprayed solvent solution. The solvent solution injected onto the workpiece is stored at the bottom of the cleaning tank 2 and is prepared for heating and evaporation during the next steam cleaning.
つぎにバルブV1を閉じ、洗浄槽２の下部又は
周辺をヒーター９ａで加熱し、洗浄槽内に貯留さ
れた溶剤液を加熱蒸発させ、この蒸気を洗浄槽内
に充満させて蒸気洗浄が行われる（第三工程）。
この蒸気洗浄には、溶剤液の蒸気が冷却されたワ
ークに当接し、ワークの温度を上昇させ、一方蒸
気は冷やされて液化し、この作用によりワーク表
面の油脂を更に柔らかくして強力な洗浄が行われ
る。 Next, the valve V1 is closed, the lower part or the surrounding area of the cleaning tank 2 is heated with the heater 9a, the solvent solution stored in the cleaning tank is heated and evaporated, and the cleaning tank is filled with this steam to perform steam cleaning. (Third step).
In this steam cleaning, the vapor of the solvent liquid comes into contact with the cooled workpiece and raises the temperature of the workpiece, while the steam is cooled and liquefied, and this action further softens the oil and fat on the workpiece surface for powerful cleaning. will be held.
またこの蒸気洗浄時に、蒸留槽５と回収タンク
６ａの内部を真空にすることが好ましく、具体的
にはバルブV3，V7を閉じ、バルブV4，V5，V6
を開き、この状態で真空ポンプ４を作動させて蒸
留槽５と回収タンク６ａ内の空気を清液タンク６
ｂ、フイルター７を経由して大気中に排出するこ
とにより行われる。 Also, during this steam cleaning, it is preferable to make the inside of the distillation tank 5 and recovery tank 6a a vacuum. Specifically, valves V3 and V7 are closed, and valves V4, V5, and V6 are closed.
is opened, and in this state, the vacuum pump 4 is operated to drain the air in the distillation tank 5 and recovery tank 6a to the fresh liquid tank 6.
b. It is carried out by discharging into the atmosphere via the filter 7.
この蒸気洗浄が完了したらバルブV4を閉じ、
バルブV3を開いて洗浄槽２内の汚れた溶剤液を
蒸留槽５内に移す。ついでバルブV3，V5を閉
じ、バルブV4，V6を開き、この状態で洗浄槽を
ヒーター９ｂで加熱し、蒸留槽５から蒸発した蒸
留液を、冷却器８により液化し、これを回収タン
ク６ａに貯留回収する。このとき回収タンク６ａ
内は真空状態であるので、液化した溶剤液は極め
て効率良く、回収タンク内に移送されることとな
る。またバルブV7を閉じておくから、液化しな
いガスがあつても大気中に放散することはない。
回収タンク６ａ内の汚れのない溶剤液は、清液タ
ンク６ｂの残存量が減少すると、バルブV7及び
真空ポンプを経由して清液タンクに移される。 Once this steam cleaning is complete, close valve V4 and
Open the valve V3 and transfer the dirty solvent solution in the cleaning tank 2 to the distillation tank 5. Next, valves V3 and V5 are closed, valves V4 and V6 are opened, and in this state, the cleaning tank is heated with the heater 9b, and the distilled liquid evaporated from the distillation tank 5 is liquefied by the cooler 8, and this is transferred to the recovery tank 6a. Store and collect. At this time, the recovery tank 6a
Since the inside is in a vacuum state, the liquefied solvent liquid is transferred to the recovery tank extremely efficiently. Also, since valve V7 is closed, even if there is unliquefied gas, it will not be released into the atmosphere.
When the remaining amount in the fresh liquid tank 6b decreases, the clean solvent liquid in the recovery tank 6a is transferred to the fresh liquid tank via the valve V7 and the vacuum pump.
ついで前記蒸気洗浄が完了したら、再度バルブ
V1，V3を閉じ、バルブV2を開いて真空ポンプを
作動させることにより、洗浄槽２内を真空状態に
してワーク１の乾燥を行う（第四工程）。 Then, once the steam cleaning is completed, close the valve again.
By closing V1 and V3, opening valve V2 and operating the vacuum pump, the cleaning tank 2 is brought into a vacuum state and the workpiece 1 is dried (fourth step).
上記第一〜第四工程は、ワーク１の汚れ具合に
応じて適宜数回繰返されることもあり、繰返すご
とに汚れの除去効果は向上する。 The above-mentioned first to fourth steps may be repeated several times depending on the degree of contamination of the workpiece 1, and the dirt removal effect improves each time it is repeated.
よつて本発明によれば、回収タンク内を真空状
態にすることにより液化溶剤液を効率的に回収す
ることができ、また洗浄槽及びその系路を外気と
隔離しているので、加熱蒸留時の溶剤の回収効率
が向上し、又外気中に溶剤を発散させないので公
害問題が起きない等のすぐれた効果がある。
Therefore, according to the present invention, it is possible to efficiently recover the liquefied solvent by creating a vacuum inside the recovery tank, and since the cleaning tank and its system are isolated from the outside air, it is possible to efficiently recover the liquefied solvent during heated distillation. It has excellent effects such as improving the recovery efficiency of the solvent, and since the solvent is not released into the outside air, there are no pollution problems.
図は本発明装置の一実施例のブロツク図であ
る。
１……ワーク、２……洗浄槽、３……シヤワー
栓、４……真空ポンプ、５……蒸留槽、６ａ……
回収タンク、６ｂ……清液タンク、７……フイル
ター、８……冷却器、９ａ，９ｂ……ヒーター、
V1〜V7……バルブ、１０……パイプ。
The figure is a block diagram of one embodiment of the apparatus of the present invention. 1...Work, 2...Cleaning tank, 3...Shower plug, 4...Vacuum pump, 5...Distillation tank, 6a...
Recovery tank, 6b... Fresh liquid tank, 7... Filter, 8... Cooler, 9a, 9b... Heater,
V1~V7...Valve, 10...Pipe.
Claims (1)
る金属等加工物の洗浄システムにおいて、前記洗
浄槽の下方経路中に、ヒーターを設けた蒸留槽を
設け、さらにその下方経路中に冷却器と回収タン
クを順次設け、この回収タンクの下方経路中に回
収タンクからの溶剤液を移送受け入れする清液タ
ンクを設け、前記回収タンクと清液タンク間の経
路中に真空ポンプを配設し、清液タンクから前記
洗浄槽内に溶剤液を配送するパイプを設けたこと
を特徴とする金属加工物の洗浄用溶剤液の回収装
置。1. In a cleaning system for metal workpieces having a cleaning tank isolated from the outside air and its system line, a distillation tank equipped with a heater is provided in the lower path of the cleaning tank, and a cooler is further installed in the lower path. Recovery tanks are provided one after another, a fresh liquid tank is provided in the path below the recovery tank to transfer and receive the solvent liquid from the recovery tank, a vacuum pump is provided in the path between the recovery tank and the fresh liquid tank, A recovery device for a solvent solution for cleaning metal workpieces, characterized in that a pipe is provided for delivering the solvent solution from the solution tank into the cleaning tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13744687A JPS63302903A (en) | 1987-05-30 | 1987-05-30 | Device for recovering solvent for cleaning work of metal or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13744687A JPS63302903A (en) | 1987-05-30 | 1987-05-30 | Device for recovering solvent for cleaning work of metal or the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63302903A JPS63302903A (en) | 1988-12-09 |
| JPH0146162B2 true JPH0146162B2 (en) | 1989-10-06 |
Family
ID=15198807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13744687A Granted JPS63302903A (en) | 1987-05-30 | 1987-05-30 | Device for recovering solvent for cleaning work of metal or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63302903A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0398683A (en) * | 1989-09-11 | 1991-04-24 | Yamazaki Kagaku Kogyo Kk | Method and apparatus for vacuum washing of processed article |
| JP2742238B2 (en) * | 1995-03-16 | 1998-04-22 | 中外炉工業株式会社 | Cleaning equipment using organic solvents |
| JP2000033232A (en) * | 1998-07-17 | 2000-02-02 | Otsuka Giken Kogyo Kk | Solvent recovery apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54113965A (en) * | 1978-02-27 | 1979-09-05 | Paakaa Netsushiyori Kougiyou K | Solvent washing method and its device |
| JPS56115676A (en) * | 1980-02-15 | 1981-09-10 | Paakaa Netsushiyori Kogyo Kk | Solvent washing method and its device |
-
1987
- 1987-05-30 JP JP13744687A patent/JPS63302903A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63302903A (en) | 1988-12-09 |
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