JPS645120B2 - - Google Patents
Info
- Publication number
- JPS645120B2 JPS645120B2 JP7151080A JP7151080A JPS645120B2 JP S645120 B2 JPS645120 B2 JP S645120B2 JP 7151080 A JP7151080 A JP 7151080A JP 7151080 A JP7151080 A JP 7151080A JP S645120 B2 JPS645120 B2 JP S645120B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- washing tank
- pipe
- heat
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 238000005406 washing Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000000706 filtrate Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 7
- 238000004381 surface treatment Methods 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims 1
- 238000005342 ion exchange Methods 0.000 description 10
- 238000011084 recovery Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
【発明の詳細な説明】
本発明は金属表面処理工程における洗浄液の液
及び熱の回収再利用法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for recovering and reusing cleaning liquid and heat in a metal surface treatment process.
従来の金属表面処理工程においては、第１図に
示すように、水洗及び湯洗の水質を保つために一
定量の水を補給し、それら各槽からオーバーフロ
ーさせて放出させている。そして、湯洗槽１の温
度を保つためにボイラーより蒸気を湯洗槽１へ直
接又は間接供給しており、温水は熱回収せずその
まま放流している。このことは水資源の有効な利
用の観点及び省エネルギーの観点から問題があ
る。 In the conventional metal surface treatment process, as shown in FIG. 1, a certain amount of water is replenished to maintain the water quality for washing and hot water washing, and the water is allowed to overflow from each tank and released. In order to maintain the temperature of the hot water washing tank 1, steam is directly or indirectly supplied from the boiler to the hot water washing tank 1, and hot water is discharged as it is without heat recovery. This poses a problem from the viewpoint of effective use of water resources and energy conservation.
本発明は、上記従来技術の問題に鑑みてこれを
解決するためになされたもので、液の回収再利用
と熱の回収再利用とを関連させて行う方法を提供
することを目的とする。 The present invention has been made in view of the above-mentioned problems of the prior art and has been made to solve the problems, and an object of the present invention is to provide a method in which liquid recovery and reuse and heat recovery and reuse are performed in conjunction with each other.
さらに、本発明の他の目的は、従来補給水の水
質変動が製品の不良の要因となつていることに鑑
みて、湯洗槽及び水洗槽の水質の安定化を図るこ
とにある。 Furthermore, another object of the present invention is to stabilize the water quality of hot water washing tanks and cold washing tanks, in view of the fact that fluctuations in the water quality of make-up water have conventionally been a cause of product defects.
以下、本発明を図示する一実施例に従つて順次
説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be sequentially explained below according to an illustrative embodiment.
第２図において、１は湯洗槽であり、この中に
蒸気を導入するパイプ２が臨んでおり、かつ、そ
の一側に高温水回収パイプ３が連通されると共に
その他側に高温水放出パイプ４が連通されてい
る。該高温水放出パイプ４の他端はクツシヨンタ
ンク５内に連通している。 In Figure 2, 1 is a hot water washing tank, into which a pipe 2 for introducing steam faces, a high temperature water recovery pipe 3 is connected to one side, and a high temperature water discharge pipe is connected to the other side. 4 are connected. The other end of the high temperature water discharge pipe 4 communicates with the interior of the cushion tank 5.
該クツシヨンタンク５内には吸水パイプ６が臨
みポンプ７を介して濾過機８に連通する。 A water suction pipe 6 faces inside the cushion tank 5 and communicates with a filter 8 via a pump 7.
該濾過機８は放出パイプ９を介し濾液貯水タン
ク１０に連通する。 The filter 8 communicates with a filtrate storage tank 10 via a discharge pipe 9.
該貯水タンク１０は、途中にポンプ１１を設け
ているパイプ１２に連通し、該パイプ１２は熱交
換器１３を通る。 The water storage tank 10 communicates with a pipe 12 having a pump 11 disposed in the middle, and the pipe 12 passes through a heat exchanger 13.
該熱交換器１３を通つた前記パイプ１２はイオ
ン交換装置１４に連通する。そして該イオン交換
装置１４から水洗槽１６に低温水回収パイプ１５
が配設される。 The pipe 12 passing through the heat exchanger 13 communicates with an ion exchange device 14 . A low temperature water recovery pipe 15 is connected from the ion exchange device 14 to the washing tank 16.
will be placed.
該水洗槽１６の一側に低温水放出パイプ１７の
一端が連通され、該放出パイプ１７の他端はクツ
シヨンタンク１８に連通している。 One end of a low temperature water discharge pipe 17 is connected to one side of the washing tank 16, and the other end of the discharge pipe 17 is connected to a cushion tank 18.
該クツシヨンタンク１８は前記熱交換器１３を
通るパイプ１９に連通する。該パイプ１９には、
途中ポンプ２０が介装される。そして該パイプ１
９は前記高温水回収パイプ３に連結されている。 The cushion tank 18 communicates with a pipe 19 passing through the heat exchanger 13. The pipe 19 has
A pump 20 is interposed in the middle. and the pipe 1
9 is connected to the high temperature water recovery pipe 3.
次に、上述のように構成された回収再利用装置
Ａによつて、洗浄液の液及び熱の回収再利用法を
説明する。 Next, a method for recovering and reusing cleaning liquid and heat using the recovery and reuse apparatus A configured as described above will be described.
洗浄の対象とする金属の表面を湯洗槽１で洗つ
てから水洗槽１６で洗うという作業を繰返して行
う工程において、先ず、該装置Ａによる液の循環
を行う。 In a process in which the surface of the metal to be cleaned is repeatedly washed in the hot water washing tank 1 and then in the water washing tank 16, the liquid is first circulated by the apparatus A.
このとき、水洗槽１６から放出される不純な低
温水（約40℃）はパイプ１７、クツシヨンタンク
１８、パイプ１９を経て熱交換器１３で高温の純
液と熱交換し、高温水（約80℃）となつて湯洗槽
１に送られる。 At this time, the impure low-temperature water (approximately 40°C) discharged from the washing tank 16 passes through the pipe 17, the cushion tank 18, and the pipe 19, and is exchanged with the high-temperature pure liquid in the heat exchanger 13. 80℃) and sent to hot water washing tank 1.
該湯洗槽１からは不純物を含む高温水がパイプ
４を通してクツシヨンタンク５に放出される。そ
してこの高温水は吸水パイプ６からポンプ７によ
つて濾過機８に送られ、濾液となつてパイプ９を
通して貯水槽１０に放出される。 High temperature water containing impurities is discharged from the washing tank 1 through a pipe 4 into a cushion tank 5. This high-temperature water is sent from the water suction pipe 6 to the filter 8 by the pump 7, and is discharged into the water storage tank 10 through the pipe 9 as a filtrate.
該貯水槽１０からは濾液がパイプ１２を通して
ポンプ１１によつて熱交換器１３に送られる。こ
の熱交換器１３に送られる濾液は低温水で熱交換
され、イオン交換をするに適した温度に調整され
てイオン交換装置１４に送給される。 The filtrate is sent from the water storage tank 10 through a pipe 12 to a heat exchanger 13 by a pump 11. The filtrate sent to the heat exchanger 13 is heat exchanged with low-temperature water, adjusted to a temperature suitable for ion exchange, and sent to the ion exchange device 14.
イオン交換装置１４では、濾液に含まれるカチ
オン（Ca++、Na+など）・アニオン（SO4 --など）
がイオン交換されて除去され、その濾液は純水と
なる。 In the ion exchange device 14, cations (Ca ++ , Na +, etc.) and anions (SO 4 -- , etc.) contained in the filtrate are removed.
is removed by ion exchange, and the filtrate becomes pure water.
イオン交換を終え純水となつた低温水（約35
℃）は純水となりパイプ１５を通して前記水洗槽
１６に回収される。以後、このような操作が繰返
されて液の循環が行われる。 Low-temperature water that has undergone ion exchange and has become pure water (approx.
℃) becomes pure water and is collected into the washing tank 16 through the pipe 15. Thereafter, such operations are repeated to circulate the liquid.
以上述べたように、本発明においては、第一に
水洗槽から放出される低温水を高温の純水で熱交
換して湯洗槽に導入し、該湯洗槽から放出される
液を濾過し、その濾液を熱交換した後イオン交換
し、そのイオン交換による純水を前記水洗槽に回
収するようにして、金属表面処理工程における洗
浄液の液及び熱の回収再利用法を構成したので、
一定量の液が従来の如く補給することなく、何回
でも洗浄液として循環して使用できるから節水に
協力しながら能率的な洗浄が行われ、また、水洗
槽の低温水と湯洗槽の高温水とを相互に利用して
熱交換を行うからその装置も簡易化し湯洗槽に導
入される蒸気の量も小量化し、省エネルギーの要
請にも協力でき、これに加え湯洗槽・水洗槽の水
質を安定化し製品の不良化を防止できる。そして
濾材の目詰りが起き難く、また濾材洗浄の操作が
簡略化できる。 As described above, in the present invention, firstly, the low temperature water released from the washing tank is heat exchanged with high temperature pure water and introduced into the hot water washing tank, and the liquid released from the washing tank is filtered. Then, the filtrate is heat-exchanged and then ion-exchanged, and the purified water resulting from the ion-exchange is collected in the washing tank, thereby configuring a method for recovering and reusing the liquid and heat of the washing solution in the metal surface treatment process.
A fixed amount of liquid can be circulated and used as a cleaning liquid as many times as needed without being replenished as in the conventional method, which contributes to water conservation and efficient cleaning. Since heat exchange is performed by mutually using water, the equipment is simplified and the amount of steam introduced into the hot water washing tank is also reduced, contributing to the request for energy conservation. It can stabilize the water quality and prevent products from becoming defective. In addition, the filter medium is less likely to be clogged, and the filter medium cleaning operation can be simplified.
また本発明においては、高温の濾液を熱交換し
た後にイオン交換処理を施しているので高温によ
りイオン交換樹脂を劣化させることがない。 Further, in the present invention, since the ion exchange treatment is performed after the high temperature filtrate is heat exchanged, the ion exchange resin is not deteriorated by high temperature.
第１図は従来の金属表面処理工程における洗浄
装置の概略説明図、第２図は本発明による金属表
面処理工程における洗浄液の液及び熱の回収再利
用装置の概略説明図である。
１…湯洗槽、２，３，４…パイプ、５，１８…
クツシヨンタンク、１３…熱交換器、１７，１９
…パイプ、１６…水洗槽、８…濾過機、１０…貯
水槽、１４…イオン交換装置、６，９，１２，１
５…パイプ。
FIG. 1 is a schematic explanatory diagram of a cleaning apparatus used in a conventional metal surface treatment process, and FIG. 2 is a schematic explanatory diagram of a cleaning liquid and heat recovery and reuse apparatus used in a metal surface treatment process according to the present invention. 1... Hot water washing tank, 2, 3, 4... Pipe, 5, 18...
Cushion tank, 13... Heat exchanger, 17, 19
...Pipe, 16...Washing tank, 8...Filter, 10...Water tank, 14...Ion exchange device, 6,9,12,1
5...Pipe.
Claims (1)
おいて、湯洗槽から放出される液を濾過し、その
濾液を水洗槽から放出される低温水で熱交換した
後イオン交換し、そのイオン交換による純水を該
水洗槽に回収し、該低温水を前記熱交換後該湯洗
槽に導入することを特徴とする金属表面処理工程
における洗浄液の液及び熱の回収再利用法。1 In a cleaning method in which the object to be treated is washed with hot water and then with water, the liquid discharged from the hot water washing tank is filtered, and the filtrate is heat-exchanged with low-temperature water discharged from the washing tank, and then ion-exchanged to remove the ions. A method for recovering and reusing cleaning liquid and heat in a metal surface treatment process, characterized in that purified water resulting from the exchange is recovered into the washing tank, and the low-temperature water is introduced into the hot water washing tank after the heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7151080A JPS56169799A (en) | 1980-05-30 | 1980-05-30 | Recovery and reuse of washing liquid and its heat in metal surface treatment step and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7151080A JPS56169799A (en) | 1980-05-30 | 1980-05-30 | Recovery and reuse of washing liquid and its heat in metal surface treatment step and apparatus therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56169799A JPS56169799A (en) | 1981-12-26 |
| JPS645120B2 true JPS645120B2 (en) | 1989-01-27 |
Family
ID=13462761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7151080A Granted JPS56169799A (en) | 1980-05-30 | 1980-05-30 | Recovery and reuse of washing liquid and its heat in metal surface treatment step and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56169799A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210106A (en) * | 1975-07-14 | 1977-01-26 | Mitsubishi Electric Corp | Revolving sheet device |
-
1980
- 1980-05-30 JP JP7151080A patent/JPS56169799A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56169799A (en) | 1981-12-26 |
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