JPH02274883A - Chemical conversion treating device - Google Patents
Chemical conversion treating deviceInfo
- Publication number
- JPH02274883A JPH02274883A JP9491489A JP9491489A JPH02274883A JP H02274883 A JPH02274883 A JP H02274883A JP 9491489 A JP9491489 A JP 9491489A JP 9491489 A JP9491489 A JP 9491489A JP H02274883 A JPH02274883 A JP H02274883A
- Authority
- JP
- Japan
- Prior art keywords
- chemical conversion
- tank
- conversion treatment
- liquid
- sludge
- 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.)
- Granted
Links
- 239000000126 substance Substances 0.000 title claims abstract description 85
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 83
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 239000010802 sludge Substances 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 abstract description 3
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 abstract description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 abstract description 2
- 239000002562 thickening agent Substances 0.000 description 17
- 238000001914 filtration Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004070 electrodeposition Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電着塗装の前処理等として被処理物に施され
る化成処理を行なう化成処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a chemical conversion treatment apparatus that performs a chemical conversion treatment applied to an object to be treated as a pretreatment for electrocoating.
従来から自動車のボディーなどに電着塗装を行なう場合
、その前処理（下地処理）としてリン酸亜鉛系処理剤な
どを用いた化成処理が行なわれている。BACKGROUND ART Conventionally, when performing electrodeposition coating on the body of an automobile, etc., a chemical conversion treatment using a zinc phosphate-based treatment agent or the like has been carried out as a pretreatment (base treatment).
この場合、かかる化成処理においては、通常スラッジが
発生するという問題があり、従来このようなスラッジを
除去するために、処理槽内から化成処理液を取り出し、
これをシックナー（濃集器）に導入し、スラッジを除去
した後、清澄な化成処理液を処理槽内に戻すことが行な
われている。In this case, such chemical conversion treatment usually has the problem of generating sludge, and conventionally, in order to remove such sludge, the chemical conversion treatment liquid is taken out from the treatment tank,
After introducing this into a thickener and removing sludge, the clear chemical conversion treatment liquid is returned to the treatment tank.
しかし、このように処理槽からシックナーへスラッジを
含む化成処理液を導入することは、処理槽とシックナー
を連絡する配管内を流れることにより、またシックナー
において、化成処理液にかなりの熱の損失が生じる。し
かも、シックナーを有するために装置！設置面積が大き
くなってしまう。However, introducing the chemical conversion treatment liquid containing sludge from the treatment tank to the thickener causes considerable heat loss to the chemical conversion treatment liquid in the thickener due to the flow in the piping connecting the treatment tank and the thickener. arise. Moreover, the device to have a thickener! The installation area becomes large.
この場合、シックナーの容積を小さくするとスラッジの
除去効率が低下し、充分なスラッジ除去を行なうことが
できないという問題がある。更に、従来の処理装置では
、シックナーでスラッジを除去した清澄な化成処理液を
処理槽に戻す場合、その底部から上方へ向けて液を吐出
するようにしているので、槽底部にスラッジが沈降し易
いという問題も有している。In this case, there is a problem in that if the volume of the thickener is reduced, the sludge removal efficiency decreases and sufficient sludge removal cannot be performed. Furthermore, in conventional treatment equipment, when returning clear chemical conversion treatment liquid from which sludge has been removed using a thickener to the treatment tank, the liquid is discharged upward from the bottom of the tank, which prevents sludge from settling at the bottom of the tank. It also has the problem of being easy to use.
本発明は、上記事情に鑑みなされたもので、化成処理槽
内に収容された化成処理液中のスラッジを良好に除去す
ることができ、また槽底部にスラッジを沈積させるよう
な不都合をなくし、しがも大きな設置面積を必要としな
い化成処理装置を提供することを目的とする。The present invention has been made in view of the above circumstances, and can effectively remove sludge from the chemical conversion treatment liquid contained in the chemical conversion treatment tank, and eliminates the inconvenience of depositing sludge at the bottom of the tank. However, it is an object of the present invention to provide a chemical conversion treatment apparatus that does not require a large installation area.
本発明は、上記目的を達成するため、化成処理液が収容
される化成処理槽と、該処理槽に連設され、内部に複数
枚の整流板が配設されて、上記処理槽からオーバーフロ
ーする化成処理液が上記複数枚の整流板間を流れること
によって化成処理液中のスラッジを沈降させるオーバー
フロー槽と、該オーバーフロー槽内のスラッジが沈降さ
れた化成処理液を上記処理槽に返送する循環ポンプが介
装された循環パイプと、該循環パイプの末端に連結され
、上記処理槽底部に近接して該底部に沿って配設され、
化成処理液の吐出口が上記処理槽の内部に向けて複数個
形成されることにより、化成処理液を処理槽底壁に向け
て吐出するライザー管とを具備してなることを特徴とす
る化成処理装置を提供する。In order to achieve the above-mentioned object, the present invention includes a chemical conversion treatment tank in which a chemical conversion treatment liquid is stored, and a plurality of rectifying plates connected to the treatment tank and disposed inside the treatment tank to prevent overflow from the treatment tank. an overflow tank in which the chemical conversion treatment liquid flows between the plurality of rectifying plates to settle sludge in the chemical conversion treatment liquid; and a circulation pump that returns the chemical conversion treatment liquid with the sludge in the overflow tank settled to the treatment tank. is connected to the end of the circulation pipe and disposed close to and along the bottom of the processing tank,
A chemical conversion treatment method characterized by comprising a riser pipe for discharging the chemical conversion treatment liquid toward the bottom wall of the treatment tank by forming a plurality of discharge ports for the chemical conversion treatment liquid toward the inside of the treatment tank. Provide processing equipment.
ここで、上記オーバーフロー槽の容積は、処理槽の１／
１〜１／３、特に１／２程度とすることがスラッジの除
去効率及び装置全体の小型化の点から好ましい。また、
整流板は該オーバーフロー槽内を化成処理液が１〜１０
分間程度滞留し、十分にスラッジを除去するような枚数
で設置することが好適であり、更に整流板は取外し可能
とすることが清掃等のメンテナンス性の点から好ましい
。Here, the volume of the overflow tank is 1/1/1 of the processing tank.
It is preferable to set it to 1 to 1/3, especially about 1/2 from the viewpoint of sludge removal efficiency and miniaturization of the entire device. Also,
The current plate allows the chemical conversion treatment liquid to flow in the overflow tank from 1 to 10
It is preferable to install the current plate in such a number that it stays there for about a minute and sufficiently removes sludge, and furthermore, it is preferable from the point of view of maintenance such as cleaning that the current plate is removable.
作−」−
本発明の化成処理装置は、上記構成としたことにより、
処理槽からオーバーフローするスラッジを含む化成処理
液を処理槽と連設されたオーバーフロー槽で直接受容し
、該オーバーフロー槽内の整流板間を流れる際に、比重
の大きいスラッジを効率よく沈降させ、清澄な化成処理
液とスラッジとを良好に離すことができ、この清澄な化
成処理液を循環ポンプで処理槽へ戻すことにより、処理
槽内の化成処理液を常に清澄に保つことができる。By having the above configuration, the chemical conversion treatment apparatus of the present invention has the following features:
The chemical conversion solution containing sludge that overflows from the treatment tank is directly received in an overflow tank connected to the treatment tank, and as it flows between the rectifying plates in the overflow tank, the sludge with a large specific gravity is efficiently settled and clarified. The chemical conversion treatment liquid and the sludge can be separated well, and by returning this clear chemical conversion treatment liquid to the treatment tank with a circulation pump, the chemical conversion treatment liquid in the treatment tank can be kept clear at all times.
また、上記オーバーフロー槽でスラッジを除去した清澄
な化成処理液は、処理槽の底部に設けられたライザー管
の吐出口から処理槽内へ吐出させることにより処理槽内
に戻すと共に、この吐出流により処理槽内の化成処理液
を撹拌するものであるが、この場合本発明の装置におい
ては、上記清澄な処理液をライザー管の吐出口から処理
槽の底壁に向けて液流を吐出するよう構成しているので
。In addition, the clear chemical conversion treatment liquid from which sludge has been removed in the overflow tank is returned to the processing tank by being discharged into the processing tank from the discharge port of the riser pipe provided at the bottom of the processing tank. The chemical conversion treatment liquid in the treatment tank is stirred, and in this case, the apparatus of the present invention discharges the clear treatment liquid in a stream from the discharge port of the riser pipe toward the bottom wall of the treatment tank. Because it is configured.
処理槽底壁部にスラッジが沈積するようなことがなく、
均一で良好な撹拌が行なわれ、このため処理槽内のスラ
ッジを残さずオーバーフロー槽へ送ることができると共
に、被処理物に対して均一な化成処理を施すことができ
る。No sludge builds up on the bottom wall of the treatment tank.
Uniform and good agitation is performed, so that sludge in the treatment tank can be sent to the overflow tank without leaving any residue, and the object to be treated can be subjected to uniform chemical conversion treatment.
このように本発明の化成処理装置は、処理槽に連設され
たオーバーフロー槽がシックナーを兼ねるように構成さ
れているので、処理槽及びシックナー（オーバーフロー
槽）の容積を小さくすることなく、シックナーを別途に
設けた従来の化成装置に比べて装置を小型化することが
でき、更に処理槽底部にスラッジが沈降するようなこと
はなく。In this way, the chemical conversion treatment apparatus of the present invention is configured such that the overflow tank connected to the treatment tank also serves as a thickener, so the thickener can be used without reducing the volumes of the treatment tank and the thickener (overflow tank). Compared to conventional chemical conversion equipment that is installed separately, the equipment can be made smaller, and there is no possibility of sludge settling at the bottom of the treatment tank.
良好なスラッジ除去を行なうことができ、このため槽清
掃等のメンテナンス性に優れるものである。It is possible to remove sludge well, and therefore it is excellent in maintenance such as tank cleaning.
以下１本発明の一実施例につき図面を参照して説明する
。An embodiment of the present invention will be described below with reference to the drawings.
図面は、本発明の一実施例に係る化成処理装置を示すも
ので、電着塗装の前処理として被処理物に化成処理を行
なうのに好適に使用されるものである。The drawing shows a chemical conversion treatment apparatus according to an embodiment of the present invention, which is suitably used to perform chemical conversion treatment on an object to be treated as a pretreatment for electrodeposition coating.
図中１は四角箱型の化成処理槽で、この処理槽１にオー
バーフロー槽２が連設され、処理槽１内の化成処理液が
オーバーフローしてオーバーフロー槽２内に流入するよ
うになっている。In the figure, 1 is a square box-shaped chemical conversion treatment tank, and an overflow tank 2 is connected to this treatment tank 1, so that the chemical conversion treatment liquid in the treatment tank 1 overflows and flows into the overflow tank 2. .
上記オーバーフロー槽２には複数枚の（図面においては
１０枚）の整流板３が互に所定間隔離間して上下方向に
沿って着脱可能に配設されている。In the overflow tank 2, a plurality of (10 in the drawings) rectifying plates 3 are disposed removably in the vertical direction with a predetermined distance from each other.
この場合、処理槽１側から第１．３，５，７．９番目の
整流板３ａは、その上端がオーバーフロー槽２内の化成
処理液の液面と同じ又はそれ以上の高さに位置し、下端
がオーバーフロー槽２の底壁と所定間隔離間して位置す
るように配設され、第２．４，６，８．１０番目の整流
板３ｂは、その上端が化成処理液の液面より低く、下端
がオーバーフロー槽２の底壁と当接した状態で配設され
、これにより処理槽１からオーバーフローした処理液は
処理槽１と第１の整流板３ａとの間を下に向かって流れ
、次いで第１の整流板３ａと第２の整流板３ｂとの間を
上へ向かって流れ、以下同様の流れを繰り返し、その際
に化成処理液中のスラッジをオーバーフロー槽の底部に
沈積させて流れるようになっているる
上記オーバーフロー槽の第１０番目の整流板と化成処理
液最終流路を形成する側壁には、循環ポンプ４及び熱交
換器５を順次介装する循環バイブロの一端が連結され、
該バイブロの他端部は処理槽１の化成処理液中に浸漬さ
れている。このバイブロの他端には、ライザー管７の一
端が連結されており、該ライザー管７は底部に近接して
該底部に沿って水平方向に配設されていると共に、該ラ
イザー管の下面には化成処理液を処理槽１の底部に吐出
するように吐出口８が複数個形成されており、この吐出
口８は、吐出流が真下向きから水平方向付近までの間の
角度で吐出するように設定され、処理槽内の良好な液循
環を確保している。なお、上記熱交換器５には加熱装置
９が付帯しである。In this case, the upper ends of the 1st, 3rd, 5th, 7th, and 9th rectifying plates 3a from the treatment tank 1 side are located at the same height as or higher than the liquid level of the chemical conversion treatment liquid in the overflow tank 2. The 2.4th, 6th, 8th, and 10th rectifying plates 3b are arranged so that their lower ends are spaced apart from the bottom wall of the overflow tank 2 by a predetermined distance, and the upper ends of the 2.4th, 6th, 8th, and 10th rectifying plates 3b are located above the liquid level of the chemical conversion treatment liquid. The processing liquid overflowing from the processing tank 1 flows downward between the processing tank 1 and the first rectifying plate 3a. Then, it flows upward between the first rectifier plate 3a and the second rectifier plate 3b, and the same flow is repeated thereafter, and at this time, the sludge in the chemical conversion treatment liquid is deposited at the bottom of the overflow tank. One end of a circulation vibro in which a circulation pump 4 and a heat exchanger 5 are sequentially installed is connected to the tenth rectifying plate of the overflow tank and the side wall forming the final flow path of the chemical conversion liquid. is,
The other end of the vibro is immersed in the chemical conversion treatment liquid in the treatment tank 1. One end of a riser pipe 7 is connected to the other end of this vibro, and the riser pipe 7 is horizontally arranged near the bottom and along the bottom, and on the lower surface of the riser pipe. A plurality of discharge ports 8 are formed to discharge the chemical conversion treatment liquid to the bottom of the treatment tank 1, and the discharge ports 8 are arranged so that the discharge flow is discharged at an angle between directly downward and near the horizontal direction. is set to ensure good liquid circulation within the processing tank. Note that a heating device 9 is attached to the heat exchanger 5.
１ｏは濾過機であり、この濾過機には、一端部が処理槽
１の処理液中に浸漬され、第１バルブ１１、濾過ポンプ
１２、第２バルブ１３が順次介装された第１配管１４の
他端が連結されていると共に、第２配管１５の一端が連
結され、この第２配管１５の他端部は処理槽１の処理液
中に浸漬されて、処理液を必要により濾過し得るように
なっている。1o is a filter, and this filter includes a first pipe 14 whose one end is immersed in the processing liquid of the processing tank 1, and in which a first valve 11, a filtration pump 12, and a second valve 13 are sequentially installed. The other end is connected, and one end of the second pipe 15 is connected, and the other end of the second pipe 15 is immersed in the processing liquid in the processing tank 1, so that the processing liquid can be filtered if necessary. It looks like this.
また、上記オーバーフロー槽２の側壁下部には、第３バ
ルブ１６を介装する第３配管１７の一端が連結され、こ
の第３配管１７の他端は、上記第１配管１４の第１バル
ブ１１と濾過ポンプ１２との間に連結されている。更に
、第１配管１４の濾過ポンプ１２と第２バルブ１３との
間には、第４バルブ１８を介装する第４配管１９の一端
が連結され、この第４配管の他端は置換槽２０の上方に
配置されている。この置換槽２０の下方にはスラッジ槽
２１が配設されており、また置換槽２０の側壁には第５
配管２２の一端が連結され、この第５配管２２の他端は
第１配管１４の上記第３配管１７の連結箇所と濾過ポン
プ１２との間に連結されている。従って、これにより、
オーバーフロー槽２内の底部に沈積したスラッジを濃厚
に含む化成処理液が置換槽２０に導入され、ここで化成
処理液から分離されたスラッジがスラッジ槽２１に排出
されると共に、スラッジを分離した化成処理液が第５配
管２２より濾過ポンプ１２、濾過機１０を順次通って処
理槽１に返送されるようになっている。Further, one end of a third pipe 17 having a third valve 16 interposed therein is connected to the lower side wall of the overflow tank 2, and the other end of the third pipe 17 is connected to the first valve 11 of the first pipe 14. and the filtration pump 12. Furthermore, one end of a fourth pipe 19 interposed with a fourth valve 18 is connected between the filtration pump 12 and the second valve 13 of the first pipe 14, and the other end of the fourth pipe is connected to the displacement tank 20. is placed above. A sludge tank 21 is provided below this replacement tank 20, and a fifth tank is provided on the side wall of the replacement tank 20.
One end of the pipe 22 is connected, and the other end of the fifth pipe 22 is connected between the connection point of the third pipe 17 of the first pipe 14 and the filtration pump 12. Therefore, this:
A chemical conversion liquid containing a concentrated amount of sludge deposited at the bottom of the overflow tank 2 is introduced into a displacement tank 20, where the sludge separated from the chemical treatment liquid is discharged to a sludge tank 21, and the chemical conversion liquid from which the sludge was separated is discharged. The processing liquid is returned to the processing tank 1 from the fifth pipe 22 through the filtration pump 12 and the filter 10 in sequence.
上記化成処理装置を用いて化成処理を行なう場合、処理
槽１内のリン酸塩等の化成処理剤を含む処理液中に被処
理物を浸漬して化成処理を行なうものであるが、この場
合、処理槽１内の化成処理液はオーバーフロー槽２ヘオ
ーバーフローして流入し、このオーバーフロー槽２内に
流れ込んだ化成処理液は整流板３間を流れる際に化成処
理液中のスラッジが沈降するものであり、このスラッジ
を沈降した清澄な化成処理液はオーバーフロー槽２の下
から１／２〜１／３位の位置の側壁中央部に連結された
循環バイブロに介装されている循環ポンプ４で吸引し、
熱交換器５を介して処理槽１に返送されるものである。When chemical conversion treatment is performed using the above-mentioned chemical conversion treatment equipment, the object to be treated is immersed in a treatment liquid containing a chemical conversion treatment agent such as phosphate in the treatment tank 1, and the chemical conversion treatment is performed. The chemical conversion treatment liquid in the treatment tank 1 overflows and flows into the overflow tank 2, and when the chemical conversion treatment liquid that has flowed into the overflow tank 2 flows between the rectifier plates 3, the sludge in the chemical conversion treatment liquid settles. The clear chemical conversion treatment liquid obtained by settling this sludge is passed through a circulation pump 4 that is connected to a circulation vibro connected to the center of the side wall at a position 1/2 to 1/3 from the bottom of the overflow tank 2. suction,
It is returned to the processing tank 1 via the heat exchanger 5.
そしてこの際、化成処理液はライザー管７の吐出口８か
ら処理槽１の底部に向けて吐出し、この吐出流入により
処理槽１内の処理液が均一に撹拌されるものである。At this time, the chemical conversion treatment liquid is discharged from the discharge port 8 of the riser pipe 7 toward the bottom of the treatment tank 1, and the treatment liquid in the treatment tank 1 is uniformly stirred by this discharged inflow.
上述した化成処理装置によれば、処理槽１に連設してオ
ーバーフロー槽２を設け、このオーバーフロー槽２に化
成処理液をオーバーフローさせると共に、オーバーフロ
ー槽２内に配設した整流板３間を化成処理液が流れる際
に化成処理液中のスラッジを除去するように構成し、オ
ーバーフロー槽がシックナーを兼ねるようにしたので、
別途にシックナーを設ける必要がなく、このため装置全
体の占有面積を小さくすることができ、また処理槽１か
らシックナーを兼ねるオーバーフロー槽２への処理液の
移送をオーバーフローにより行なうので、処理液の熱損
失が少ない、また、このオーバーフロー槽２でスラッジ
を除去した化成処理液は、ライザー管７の吐出口８より
処理槽１の底壁に向けて吐出されるので処理槽底壁部に
スラッジが沈積することはなく、吐出流による均一で良
好な撹拌が行なわれ、このため化成ムラなどを生じるこ
となく、均一な化成処理を行なうことができると共に、
処理槽１内のスラッジをその底壁部等に残すことなく、
オーバーフロー槽２に送ることができ５更に本例におい
ては、処理槽１がら濾過ポンプ１２の作動で処理液を取
り出し、濾過機１０で濾過した後、処理槽１へ戻すこと
もできるので非常に優れたスラッジ除去が行なわれ、こ
のため槽清掃等のメンテナンス性が非常に優れる。According to the chemical conversion treatment apparatus described above, the overflow tank 2 is provided in series with the treatment tank 1, and the chemical conversion treatment liquid is allowed to overflow into the overflow tank 2, and the chemical conversion treatment is carried out between the rectifier plates 3 disposed in the overflow tank 2. The structure is designed to remove sludge from the chemical conversion treatment liquid as the treatment liquid flows, and the overflow tank also serves as a thickener.
There is no need to provide a separate thickener, so the area occupied by the entire device can be reduced.Also, since the processing liquid is transferred from the processing tank 1 to the overflow tank 2, which also serves as a thickener, by overflow, the heat of the processing liquid can be reduced. The chemical conversion liquid from which sludge has been removed in the overflow tank 2 is discharged toward the bottom wall of the processing tank 1 from the discharge port 8 of the riser pipe 7, so sludge is deposited on the bottom wall of the processing tank. The discharge flow provides uniform and good agitation, and as a result, uniform chemical conversion treatment can be performed without causing uneven chemical conversion.
Without leaving sludge in the treatment tank 1 on the bottom wall, etc.
Furthermore, in this example, the processing liquid can be taken out from the processing tank 1 by operation of the filtration pump 12, filtered by the filter 10, and then returned to the processing tank 1, which is very advantageous. Therefore, maintenance such as tank cleaning is very easy.
実際、図面と同様の化成処理槽を構成し、稼働させてみ
たところ、濾過機１０を週１回洗浄し、オーバーフロー
槽２を２ケ月に１回清掃するだけでよく、メンテナンス
時間の低減が図られた。またこの場合、オーバーフロー
槽２内の整流板３が取り外し可能であるので、簡単にオ
ーバーフロー槽４の清掃が行なわれる。しかも、本例の
化成処理装置では、オーバーフロー槽２からスラッジを
多量に含む沈渣を置換槽２０に導入し、ここで化成処理
液を回収し、濾過ポンプ１２及び濾過機１０を経て処理
槽１に戻すようにしているので、スラッジ除去に伴なう
化成処理液の損失を非常に少ないものとすることができ
る。In fact, when we configured and operated a chemical conversion tank similar to the drawing, we found that it was only necessary to clean the filter 10 once a week and the overflow tank 2 once every two months, which significantly reduced maintenance time. It was done. Further, in this case, since the rectifying plate 3 in the overflow tank 2 is removable, the overflow tank 4 can be easily cleaned. Moreover, in the chemical conversion treatment apparatus of this example, the sediment containing a large amount of sludge is introduced from the overflow tank 2 into the displacement tank 20, where the chemical conversion treatment liquid is recovered, and passed through the filtration pump 12 and the filter 10 to the treatment tank 1. Since the sludge is returned, the loss of the chemical conversion liquid due to sludge removal can be minimized.
なお、本発明の化成処理装置は、上記実施例に限定され
るものではなく、本発明の要旨の範囲内で種々変更して
差支えない。Note that the chemical conversion treatment apparatus of the present invention is not limited to the above embodiments, and various changes may be made within the scope of the gist of the present invention.
本発明の化成処理装置は、処理槽に連設されたオーバー
フロー槽がシックナーを兼ねているので。In the chemical conversion treatment apparatus of the present invention, the overflow tank connected to the treatment tank also serves as a thickener.
別途にシックナーを設ける必要がなく、このため処理槽
やシックナー（オーバーフロー槽）の容積を小さくする
ことなく、装置全体を小型化することができ、更に化成
処理液をシックナー（オーバーフロー槽）に導入するの
にオーバーフロ一方式を採用しているので処理液の熱の
損失が少ない。There is no need to provide a separate thickener, so the entire device can be downsized without reducing the volume of the treatment tank or thickener (overflow tank), and the chemical conversion treatment liquid can be introduced into the thickener (overflow tank). Since it uses an overflow type, there is little heat loss in the processing liquid.
また、スラッジを除去した清澄な化成処理液を処理槽内
底部に配置されたライザー管の吐出口から底壁に向けて
吐出することにより、処理液を処理槽に戻すとともに、
吐出流により処理槽内の処理液を撹拌するようにしたの
で、処理槽底部にスラッジが沈積するようなことがなく
、均一で良好な撹拌が行なわれ、このため処理槽内のス
ラッジをほとんど残すことなくオーバーフロー槽へ送る
ことができると共に、被処理物に対して均一な化成処理
を施すことができる。In addition, by discharging the clear chemical conversion treatment liquid from which sludge has been removed from the outlet of the riser pipe placed at the bottom of the treatment tank toward the bottom wall, the treatment liquid is returned to the treatment tank.
Since the treatment liquid in the treatment tank is stirred by the discharge flow, sludge does not settle at the bottom of the treatment tank, and uniform and good agitation is performed, resulting in almost all the sludge remaining in the treatment tank. It is possible to send the treated material to the overflow tank without any trouble, and it is also possible to perform a uniform chemical conversion treatment on the treated material.
図面は、本発明の一実施例を示すフローシー！・である
。
１・・・化成処理槽 ２・・・オーバーフロー槽３・
・・整流Ｆｉ ４・・・循環ポンプ６・・・循環
パイプ ７・・・ライザー管８・・・吐出口
９・・・置換槽出願人 上 村 工 業 株式会社
代理人 弁理士 小 島 隆 司
（他１名）The drawings show an embodiment of the present invention.・It is. 1...Chemical treatment tank 2...Overflow tank 3.
... Rectification Fi 4 ... Circulation pump 6 ... Circulation pipe 7 ... Riser pipe 8 ... Discharge port
9... Replacement tank applicant Kamimura Kogyo Co., Ltd. Agent Patent attorney Takashi Kojima (1 other person)
Claims (1)
連設され、内部に複数枚の整流板が配設されて、上記処
理槽からオーバーフローする化成処理液が上記複数枚の
整流板間を流れることによって化成処理液中のスラッジ
を沈降させるオーバーフロー槽と、該オーバーフロー槽
内のスラッジが沈降された化成処理液を上記処理槽に返
送する循環ポンプが介装された循環パイプと、該循環パ
イプの末端に連結され、上記処理槽底部に近接して該底
部に沿って配設され、化成処理液の吐出口が上記処理槽
の内部に向けて複数個形成されることにより、化成処理
液を処理槽底壁に向けて吐出するライザー管とを具備し
てなることを特徴とする化成処理装置。1. A chemical conversion treatment tank in which a chemical conversion treatment liquid is stored, and a plurality of rectifying plates that are connected to the treatment tank and arranged inside, so that the chemical conversion treatment liquid overflowing from the treatment tank is rectified by the plurality of rectification plates. an overflow tank that settles sludge in the chemical conversion treatment liquid by flowing between plates; a circulation pipe equipped with a circulation pump that returns the chemical conversion treatment liquid in which the sludge in the overflow tank has been settled to the treatment tank; The chemical conversion pipe is connected to the end of the circulation pipe, is disposed close to the bottom of the processing tank, and is disposed along the bottom, and has a plurality of discharge ports for the chemical conversion liquid directed toward the inside of the processing tank. A chemical conversion treatment apparatus comprising: a riser pipe that discharges a treatment liquid toward a bottom wall of a treatment tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1094914A JPH0832959B2 (en) | 1989-04-14 | 1989-04-14 | Chemical conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1094914A JPH0832959B2 (en) | 1989-04-14 | 1989-04-14 | Chemical conversion equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02274883A true JPH02274883A (en) | 1990-11-09 |
| JPH0832959B2 JPH0832959B2 (en) | 1996-03-29 |
Family
ID=14123270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1094914A Expired - Fee Related JPH0832959B2 (en) | 1989-04-14 | 1989-04-14 | Chemical conversion equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0832959B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021088760A (en) * | 2019-11-25 | 2021-06-10 | 住友金属鉱山株式会社 | Recycling facility of circulation water and recycling method of circulation water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212767A (en) * | 1975-07-22 | 1977-01-31 | Baakaa Sangyo Kk | Method for continuous removal of sludge in chemical treating liquor |
| JPS54142660A (en) * | 1978-04-28 | 1979-11-07 | Nippon Packaging Kk | Method of transferring solid matter in liquid |
-
1989
- 1989-04-14 JP JP1094914A patent/JPH0832959B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212767A (en) * | 1975-07-22 | 1977-01-31 | Baakaa Sangyo Kk | Method for continuous removal of sludge in chemical treating liquor |
| JPS54142660A (en) * | 1978-04-28 | 1979-11-07 | Nippon Packaging Kk | Method of transferring solid matter in liquid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021088760A (en) * | 2019-11-25 | 2021-06-10 | 住友金属鉱山株式会社 | Recycling facility of circulation water and recycling method of circulation water |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0832959B2 (en) | 1996-03-29 |
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