JPS6350440B2 - - Google Patents
Info
- Publication number
- JPS6350440B2 JPS6350440B2 JP55056132A JP5613280A JPS6350440B2 JP S6350440 B2 JPS6350440 B2 JP S6350440B2 JP 55056132 A JP55056132 A JP 55056132A JP 5613280 A JP5613280 A JP 5613280A JP S6350440 B2 JPS6350440 B2 JP S6350440B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- washing tank
- pipe
- tank
- hot water
- 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 61
- 238000005406 washing Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 238000005342 ion exchange Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000000706 filtrate Substances 0.000 claims description 8
- 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
- 238000011084 recovery Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 150000002500 ions Chemical class 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生蒸気を湯洗槽１へ
直接供給しており、温水は熱回収せずそのまゝ放
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, live steam is directly supplied from the boiler to the hot water washing tank 1, and the hot water is discharged as 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
生蒸気を導入するパイプ２が臨んであり、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 FIG. 2, 1 is a hot water washing tank, into which a pipe 2 for introducing live steam faces, and
A high temperature water recovery pipe 3 is connected to one side thereof, and a high temperature water discharge pipe 4 is connected to the other side. 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は、熱交換器６を通るパ
イプ７によつて水洗槽８の一側に連通する。該パ
イプ７の前記タンク５と熱交換器６との間にポン
プ９が介装されている。 The cushion tank 5 communicates with one side of the washing tank 8 by a pipe 7 passing through a heat exchanger 6. A pump 9 is interposed between the tank 5 and the heat exchanger 6 of the pipe 7.
前記水洗槽８の他側には低温水放出パイプ１０
が連通している。そして該パイプ１０の他端はク
ツシヨンタンク１１内に連通している。 On the other side of the washing tank 8, there is a low temperature water discharge pipe 10.
are communicating. The other end of the pipe 10 communicates with the interior of the cushion tank 11.
該クツシヨンタンク１１内には吸水パイプ１２
が臨みポンプ１３を介して濾過機１４に連通す
る。 A water suction pipe 12 is provided in the cushion tank 11.
is connected to a filter 14 via a pump 13.
該濾過機１４は放出パイプ１５を介して濾液貯
水タンク１６に連通する。 The filter 14 communicates with a filtrate storage tank 16 via a discharge pipe 15.
該貯水タンク１６は、途中にポンプ１７を設け
ているパイプ１８を介してイオン交換装置１９に
連通する。 The water storage tank 16 communicates with an ion exchange device 19 via a pipe 18 having a pump 17 provided therebetween.
該イオン交換装置１９は、前記熱交換器６を通
るパイプ２０と連通し、該パイプ２０は前記高温
水回収パイプ３に連結され、かくして、循環型の
液及び熱の回収再利用装置Ａが構成されている。 The ion exchange device 19 communicates with a pipe 20 passing through the heat exchanger 6, and the pipe 20 is connected to the high temperature water recovery pipe 3, thus forming a circulating liquid and heat recovery and reuse device A. has been done.
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水洗槽８で洗つ
てから湯洗槽１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
なう。 In the process of repeatedly washing the surface of the metal to be cleaned in the water washing tank 8 and then washing it in the hot water washing tank 1, the apparatus A first circulates the liquid.
このとき、湯洗槽１から放出される不純な高温
水（約80℃）はパイプ４、クツシヨンタンク５、
パイプ７を経て熱交換器６で低温の純水と熱交換
し、低温水（約40℃）となつて水洗槽８に送られ
る。 At this time, impure high-temperature water (approximately 80°C) discharged from hot water washing tank 1 is transferred to pipe 4, cushion tank 5,
It exchanges heat with low-temperature pure water in a heat exchanger 6 through a pipe 7, becomes low-temperature water (approximately 40°C), and is sent to a washing tank 8.
該水洗槽８からは不純物を含む低温水がパイプ
１０を通してクツシヨンタンク１１に放出され
る。そしてこの低温水は吸水パイプ１２からポン
プ１３によつて濾過機１４に送られ、濾液となつ
てパイプ１５を通して貯水槽１６に放出される。 Low-temperature water containing impurities is discharged from the washing tank 8 through a pipe 10 into a cushion tank 11. This low-temperature water is sent from the water suction pipe 12 to the filter 14 by the pump 13, and is discharged into the water storage tank 16 through the pipe 15 as a filtrate.
該貯水槽１６からは濾液がパイプ１８を通して
ポンプ１７によつてイオン交換装置１９に送られ
る。このイオン交換装置１９に送られる濾液はイ
オン交換をするに適した温度に調整されている。 The filtrate is sent from the water tank 16 through a pipe 18 to an ion exchanger 19 by a pump 17. The filtrate sent to this ion exchange device 19 is adjusted to a temperature suitable for ion exchange.
イオン交換装置１９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 19, cations (Ca ++ , Na +, etc.) and anions (SO 4 -- , etc.) contained in the filtrate are
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
℃）はパイプ２０を通して熱交換器６に送られ、
こゝで前述した不純物を含む高温水（約80℃）と
熱交換して高温の純水（約75℃）となり前記湯洗
槽１に回収され、そこで生蒸気の吹込により更に
高温となる。以後、このような操作が繰返されて
液の循環が行なわれる。 Low-temperature water that has undergone ion exchange and has become pure water (approx.
°C) is sent to the heat exchanger 6 through the pipe 20,
Here, it exchanges heat with the high-temperature water (approximately 80° C.) containing the aforementioned impurities to become high-temperature pure water (approximately 75° C.) and is recovered in the hot water washing tank 1, where it is further heated to a higher temperature by blowing in live steam. 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
湯洗槽から放出される高温水を低温の純水で熱交
換して水洗槽に導入し、該水洗槽から放出される
液を濾過し、その濾液をイオン交換し、そのイオ
ン交換による純水を前記高温水との熱交換により
加熱して前記湯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
洗浄が行なわれ、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生蒸気の量
も小量化し更にその生蒸気の温度を高める必要も
少くなり、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。 As described above, in the present invention, firstly, high-temperature water discharged from a hot water washing tank is heat-exchanged with low-temperature pure water and introduced into the washing tank, and the liquid discharged from the washing tank is filtered. The filtrate is ion-exchanged, and the purified water resulting from the ion exchange is heated by heat exchange with the high-temperature water and then collected in the hot water washing tank, thereby recovering and reusing the cleaning solution and heat in the metal surface treatment process. Since the method of use is configured, a certain amount of liquid can be circulated and used as a cleaning liquid as many times as required without replenishing as in the past, which contributes to water conservation and efficient cleaning. Since heat exchange is performed by mutually using low-temperature water and high-temperature water in the hot water washing tank, the equipment is simplified, the amount of live steam introduced into the hot water washing tank is also reduced, and it is necessary to further increase the temperature of the live steam. In addition to this, the water quality in hot water and cold water washing tanks can be stabilized and products can be prevented from becoming defective.
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、５，１１…
クツシヨンタンク、６…熱交換器、７…パイプ、
８…水洗槽、１４…濾過機、１６…貯水槽、１９
…イオン交換装置、１０，１２，１５，１８，２
０…パイプ。
FIG. 1 is a schematic explanatory diagram of a cleaning device in a conventional metal surface treatment process, and FIG. 2 is a schematic explanatory diagram of a cleaning liquid and heat recovery and reuse device in a metal surface treatment process according to the present invention. 1... Hot water washing tank, 2, 3, 4... Pipe, 5, 11...
cushion tank, 6... heat exchanger, 7... pipe,
8...Washing tank, 14...Filter, 16...Water tank, 19
...Ion exchange device, 10, 12, 15, 18, 2
0...pipe.
Claims (1)
おいて、湯洗槽から放出される高温水を低温の純
水で熱交換して水洗槽に導入し、該水洗槽から放
出される液を濾過し、その濾液をイオン交換し、
そのイオン交換による純水を前記高温水との熱交
換により加熱して前記湯洗槽に回収するよう構成
した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 water and then hot water, high-temperature water released from a hot water washing tank is heat-exchanged with low-temperature pure water and introduced into the washing tank, and the liquid released from the washing tank is filter, ion exchange the filtrate,
A method for recovering and reusing cleaning liquid and heat in a metal surface treatment process, characterized in that the purified water resulting from ion exchange is heated by heat exchange with the high temperature water and then collected in the hot water washing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5613280A JPS56152997A (en) | 1980-04-30 | 1980-04-30 | Method and device for recovering and reusing of liquid and heat of washing liquid in metallic surface treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5613280A JPS56152997A (en) | 1980-04-30 | 1980-04-30 | Method and device for recovering and reusing of liquid and heat of washing liquid in metallic surface treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56152997A JPS56152997A (en) | 1981-11-26 |
| JPS6350440B2 true JPS6350440B2 (en) | 1988-10-07 |
Family
ID=13018544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5613280A Granted JPS56152997A (en) | 1980-04-30 | 1980-04-30 | Method and device for recovering and reusing of liquid and heat of washing liquid in metallic surface treatment process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56152997A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06158399A (en) * | 1992-11-26 | 1994-06-07 | Kawasaki Steel Corp | Method for washing stainless steel strip |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210106A (en) * | 1975-07-14 | 1977-01-26 | Mitsubishi Electric Corp | Revolving sheet device |
-
1980
- 1980-04-30 JP JP5613280A patent/JPS56152997A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210106A (en) * | 1975-07-14 | 1977-01-26 | Mitsubishi Electric Corp | Revolving sheet device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56152997A (en) | 1981-11-26 |
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