JPH06304506A - Method for cleaning water tank of coating booth - Google Patents
Method for cleaning water tank of coating boothInfo
- Publication number
- JPH06304506A JPH06304506A JP5120760A JP12076093A JPH06304506A JP H06304506 A JPH06304506 A JP H06304506A JP 5120760 A JP5120760 A JP 5120760A JP 12076093 A JP12076093 A JP 12076093A JP H06304506 A JPH06304506 A JP H06304506A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water tank
- sludge
- coating material
- paint 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 238000004140 cleaning Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 7
- 239000010802 sludge Substances 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 3
- 239000003973 paint Substances 0.000 claims description 37
- 238000005086 pumping Methods 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract 11
- 230000003311 flocculating effect Effects 0.000 abstract 2
- 238000001914 filtration Methods 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
- 230000004931 aggregating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、塗装ブース内に生じた
余剰の塗料スラツジを回収除去するための水槽を清掃す
る方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning a water tank for recovering and removing excess paint sludge generated in a paint booth.
【０００２】[0002]
【従来の技術】塗装ブース内において被塗物の実際の塗
装に供されることなく飛散しあるいはブース壁面等に付
着した塗料を、自然落下によりあるいはウオータカーテ
ンを用いることにより、塗装ブースの底面に設置した水
槽内の水の中に落下させて回収除去するシステムは公知
である。2. Description of the Related Art Paint that has scattered in a coating booth without being applied to the actual coating of the object to be coated or has adhered to the booth wall surface, etc. is applied to the bottom of the coating booth by natural fall or by using a water curtain. A system for dropping and dropping into water in an installed water tank to collect and remove is known.
【０００３】この塗料スラツジの混じつた水槽内の汚濁
水は、時間が経過すると塗料スラツジ中に生息するバク
テリアが腐敗するのに起因して悪臭を発生するため、で
きるだけ頻繁に水槽を清掃することが好ましいのである
が、その作業は大変な労苦を伴うものであつた。The polluted water in the water tank mixed with the paint sludge produces a foul odor due to the decay of bacteria living in the paint sludge over time, so the water tank should be cleaned as often as possible. Although preferred, the work involved a great deal of work.
【０００４】[0004]
【発明が解決しようとする課題】そのため近年、例え
ば、株式会社日進化研からＮＩＸの商品名で販売されて
いる処理液剤のように、汚濁水中に投入することにより
塗料スラツジを微粒子に分解してゲル状に凝集させ、水
中に沈澱させる機能を持つ処理液剤が開発され、さらに
それを使用した清掃システムも開発されて、一部で普及
しつつある。Therefore, in recent years, for example, as in the case of the treatment liquid sold under the trade name of NIX by Nichikoken Co., Ltd., the coating sludge is decomposed into fine particles by being put into polluted water. A treatment liquid having a function of aggregating in the form of gel and precipitating in water has been developed, and a cleaning system using the treatment liquid has also been developed, and it is becoming popular in some areas.
【０００５】この清掃システムは、上記のように処理液
剤により塗料スラツジとバクテリアをゲル化させ、汚濁
水をポンプで汲み上げてろ過装置に通すようにしたもの
であつて、バクテリアを凝集させることにより悪臭の発
生が抑えられて水交換が長期にわたつて不要となり、ま
た、塗料スラツジはろ過装置で回収されることにより清
掃作業自体が軽減され、さらに、ろ過装置で浄化された
水が長期に反復利用できて経済的である等数々の利点が
あるのであるが、ただ、塗料スラツジの回収と水の浄化
とをろ過により行つているために時間が掛かり、作業能
率を考慮した場合に今一つ不満であつてさらなる改良が
望まれていた。This cleaning system is a system in which the paint sludge and bacteria are gelled by the treatment liquid as described above, and the polluted water is pumped up and passed through the filtration device. Generation is suppressed and water exchange becomes unnecessary for a long time, and the paint sludge is collected by the filtration device, which reduces the cleaning work itself, and the water purified by the filtration device is repeatedly used for a long time. Although it has many advantages such as being economical, it is time-consuming because collection of paint sludge and purification of water are carried out by filtration, and it is still unsatisfactory when considering work efficiency. Therefore, further improvement was desired.
【０００６】[0006]
【課題を解決するための手段】本発明の塗装ブース水槽
の清掃方法は、上記の要望に基づいて完成されたもので
あつて、水槽内の塗料スラツジの混じつた汚濁水中に、
塗料スラツジをゲル化して凝集、沈澱させる能力を持つ
た処理液剤を投入するとともに、その処理液剤の投入さ
れた汚濁水をポンプで汲み上げて、遠心分離機により塗
料スラツジと清浄水とに分離処理する構成とした。A method for cleaning a coating booth water tank according to the present invention has been completed based on the above-mentioned demand, and in a polluted water mixed with paint sludge in the water tank,
A treatment liquid with the ability to gel, agglomerate, and precipitate the paint sludge is added, and the polluted water containing the treatment liquid is pumped up and separated into a paint sludge and clean water by a centrifugal separator. It was configured.
【０００７】[0007]
【作用】塗料スラツジの混じつた汚濁水中に処理液剤が
投入されていることにより、塗料スラツジはゲル状に凝
集されて固形化しないままに水槽内に沈澱し、適宜時間
の経過後に、そのゲル化した塗料スラツジの混じつた汚
濁水をポンプで汲み上げて遠心分離機に供給すると、そ
の遠心分離機の機能によつて、塗料スラツジと上澄みの
清浄水とに分離され、塗料スラツジは回収されて廃棄さ
れるとともに、清浄水は再度ブース内における塗料スラ
ツジ除去用水として利用される。[Function] Since the treatment liquid is put into the contaminated water containing the paint sludge, the paint sludge is agglomerated into a gel and precipitates in the water tank without solidifying, and after a suitable time, the gelation occurs. When polluted water containing mixed paint sludge is pumped up and supplied to a centrifuge, the function of the centrifuge separates the paint sludge into clean water of the supernatant, and the paint sludge is collected and discarded. At the same time, the clean water is reused as water for removing paint sludge in the booth.
【０００８】[0008]
【実施例】以下、本発明の一実施例を図１を参照して説
明する。図において、符号１は、水洗塗装ブースの底面
に設置された水槽であつて、被塗物の塗装に供されるこ
となく飛散しあるいはブース壁面等に付着した余剰塗料
が、その水槽１内に張られた水ａの中に落下することに
よつて回収除去されるようになつている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG. In the figure, reference numeral 1 is a water tank installed on the bottom surface of the water-washing booth, and surplus paint that has been scattered or adhered to the booth wall surface etc. It is designed to be collected and removed by falling into the stretched water a.
【０００９】その水槽１内の水ａの中には、既述した株
式会社日進化研製の処理液剤ｂが予め投入されている。In the water a in the water tank 1, the above-mentioned treatment liquid b manufactured by Nichikoken Co., Ltd. is added in advance.
【００１０】水槽１の側方には遠心分離機２が設置され
ている。この遠心分離機２は公知のものであつて、回転
ドラム３を回転させつつ、その回りを囲んで固設したケ
ース４の供給口５から微粒子の混入した被処理水を回転
ドラム３の内部に供給すると、被処理水中に含まれる微
粒子が遠心力の作用により回転ドラム３の内壁に強制的
に沈澱させられ、清浄な上澄液は回転ドラム３の上面の
開口からケース４内に流れて取出口６から連続して取り
出されるようになつている。A centrifugal separator 2 is installed on the side of the water tank 1. This centrifuge 2 is a known one, and while the rotating drum 3 is being rotated, the water to be treated containing fine particles is supplied to the inside of the rotating drum 3 from a supply port 5 of a case 4 which is fixedly provided around the rotating drum 3. When supplied, the fine particles contained in the water to be treated are forcibly precipitated on the inner wall of the rotating drum 3 by the action of the centrifugal force, and the clean supernatant liquid flows into the case 4 through the opening on the upper surface of the rotating drum 3. It is adapted to be continuously taken out from the outlet 6.
【００１１】この遠心分離機２の供給口５にポンプ７を
介設した汲上管８の一端が接続され、その他端が水槽１
の底面側に嵌入されているとともに、取出口６に接続さ
れた還流管９が水槽１側に導かれている。One end of a pumping pipe 8 provided with a pump 7 is connected to the supply port 5 of the centrifuge 2, and the other end is connected to the water tank 1.
A recirculation pipe 9 connected to the outlet 6 is guided to the water tank 1 side while being fitted into the bottom surface side of the.
【００１２】続いて、本実施例の作用を説明する。余剰
の塗料スラツジが水槽１の水ａの中に落下すると、その
中には処理液剤ｂが投入されていることにより、塗料ス
ラツジＡはゲル状に凝集されて固形化しないままに水槽
１内に沈澱する。それに伴い、塗料スラツジ中に生息し
ているバクテリアも凝集し、その腐敗に起因する悪臭の
発生が抑えられて水交換が長期にわたつて不要となる。Next, the operation of this embodiment will be described. When the surplus paint sludge drops into the water a of the water tank 1, the treatment liquid b is put therein, so that the paint sludge A is agglomerated into a gel and remains in the water tank 1 without solidifying. Settle. Along with this, bacteria inhabiting the paint sludge also agglomerate, and the generation of a bad odor due to the spoilage is suppressed, so that water exchange becomes unnecessary for a long time.
【００１３】清掃に際しては、そのゲル化した塗料スラ
ツジＡの混じつた汚濁水をポンプ７で汲み上げて汲上管
８により遠心分離機２に供給する。その場合、塗料スラ
ツジＡは水槽１の底面に沈澱しているので、底面側に差
し込まれた汲上管８により塗料スラツジＡが効率良く汲
み上げられる。At the time of cleaning, the contaminated water containing the gelled paint sludge A is pumped up by the pump 7 and supplied to the centrifuge 2 through the pumping pipe 8. In that case, since the paint sludge A is deposited on the bottom surface of the water tank 1, the paint sludge A can be efficiently pumped up by the pumping pipe 8 inserted on the bottom surface side.
【００１４】上記の処理液剤ｂによつてゲル化された塗
料スラツジＡは、撹拌されても再凝集して元の分離され
た状態に戻る性質を有しているから、遠心分離機２の回
転ドラム３の回転に伴つて働く遠心力の作用によつて、
汚濁水中に含まれた塗料スラツジＡの微粒子が回転ドラ
ム３の内壁に強制的に沈澱させられ、清浄な上澄液は取
出口６から還流管９を通つて連続して取り出されて水槽
１に戻される。遠心分離機２を連続運転することによつ
て、水槽１内が循環清掃される。The coating sludge A gelled by the above-mentioned treatment liquid b has the property of re-aggregating and returning to the original separated state even when agitated, so that the centrifuge 2 is rotated. Due to the action of the centrifugal force that accompanies the rotation of the drum 3,
The fine particles of the paint sludge A contained in the polluted water are forcibly precipitated on the inner wall of the rotating drum 3, and the clean supernatant liquid is continuously taken out from the take-out port 6 through the reflux pipe 9 to the water tank 1. Will be returned. By continuously operating the centrifuge 2, the water tank 1 is circulated and cleaned.
【００１５】適宜の時間が経過したら、遠心分離機２を
停めて回転ドラム３の内壁に溜まつた塗料スラツジＡを
廃棄する。After a suitable time has passed, the centrifuge 2 is stopped and the paint sludge A accumulated on the inner wall of the rotary drum 3 is discarded.
【００１６】上記の清掃工程において、人手を要するの
は遠心分離機２から塗料スラツジＡを廃棄することのみ
で足りるから、清掃作業自体がきわめて簡単となり、特
に、塗料スラツジＡと清浄水とを分離するのを高速分離
が可能な遠心分離機２で行うことにより、清掃時間の大
幅な短縮化が図られる。In the above-mentioned cleaning step, since it suffices to dispose of the paint sludge A from the centrifuge 2 in the cleaning process, the cleaning operation itself becomes extremely simple, and in particular, the paint sludge A and the clean water are separated. By performing the cleaning with the centrifugal separator 2 capable of high-speed separation, the cleaning time can be significantly shortened.
【００１７】遠心分離機２から取り出された清浄水は、
水槽１内に戻されることによつて再度ブース内における
塗料スラツジ除去用水として利用でき、また、その中に
混入されている処理液剤ｂは、凝集、沈澱能力を長く維
持するので、液剤ｂの補充量も少量で済んできわめて経
済的である。The clean water taken out from the centrifuge 2 is
By returning it to the water tank 1, it can be used again as water for removing paint sludge in the booth, and the treated liquid agent b mixed therein maintains the aggregating and precipitating ability for a long time, so that the liquid agent b is replenished. It is extremely economical as it requires only a small amount.
【００１８】なお、本発明は、塗料スラツジを強制的に
水槽内に落下させるウオータカーテンを付設した塗装ブ
ースにおける水槽の清掃にも同様に適用できる。The present invention can be similarly applied to the cleaning of the water tank in the coating booth provided with the water curtain for forcibly dropping the paint sludge into the water tank.
【００１９】[0019]
【発明の効果】以上具体的に説明したように、本発明に
よれば、悪臭発生防止機能を持つ処理液剤を用いている
ことで水交換を長期にわたつて不要にでき、また、塗料
スラツジを遠心分離機で回収することにより清掃作業の
負担を軽減し、さらに、遠心分離機で浄化された水が長
期に反復利用できて経済的であるといつた従来と同様の
効果があるのに加えて、特に、塗料スラツジの最終の廃
棄に際して塗料スラツジと清浄水とを分離させるのに遠
心分離機を使用したことによつて、その作業を従来のろ
過による場合と比べて短時間で能率良く行うことができ
る効果がある。As described above in detail, according to the present invention, the use of the treating liquid agent having the function of preventing the generation of offensive odors makes it possible to eliminate the need for water exchange for a long period of time, and also to prevent the coating sludge from occurring. In addition to reducing the burden of cleaning work by collecting with a centrifuge, and having the same effect as before when the water purified by the centrifuge can be reused repeatedly for a long time and is economical. In particular, by using a centrifuge to separate the paint sludge from the clean water at the final disposal of the paint sludge, the work can be done efficiently in a shorter time than in the case of conventional filtration. There is an effect that can be.
【図１】本発明方法を実施する清掃システムの構成図で
ある。FIG. 1 is a configuration diagram of a cleaning system for carrying out the method of the present invention.
１：水槽 ２：遠心分離機 ７：ポンプ Ａ：（ゲル化
された）塗料スラツジ ａ：水 ｂ：処理液剤1: Water tank 2: Centrifuge 7: Pump A: (gelled) paint sludge a: Water b: Treatment liquid
Claims (1)
ジを該塗装ブースの底面に設置した水槽内の水の中に落
下させて回収除去するようにした水洗式塗装ブースの前
記水槽を清掃する方法であつて、前記水槽内の前記塗料
スラツジの混じつた汚濁水中に、塗料スラツジをゲル化
して凝集、沈澱させる能力を持つた処理液剤を投入する
とともに、該処理液剤の投入された汚濁水をポンプで汲
み上げて、遠心分離機により塗料スラツジと清浄水とに
分離処理することを特徴とする塗装ブース水槽の清掃方
法。1. A water tank of a water-washing type coating booth, in which surplus paint sludge generated in the coating booth is dropped into water in a water tank installed on the bottom of the coating booth to be collected and removed. In the method, in the polluted water in which the paint sludge is mixed in the water tank, a treatment liquid agent having the ability to gel, agglomerate, and precipitate the paint sludge is added, and the polluted water in which the treatment liquid agent is added is added. A method for cleaning a water tank of a coating booth, which comprises pumping up the water and separating it into paint sludge and clean water by a centrifugal separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5120760A JPH06304506A (en) | 1993-04-23 | 1993-04-23 | Method for cleaning water tank of coating booth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5120760A JPH06304506A (en) | 1993-04-23 | 1993-04-23 | Method for cleaning water tank of coating booth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06304506A true JPH06304506A (en) | 1994-11-01 |
Family
ID=14794317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5120760A Pending JPH06304506A (en) | 1993-04-23 | 1993-04-23 | Method for cleaning water tank of coating booth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06304506A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100792753B1 (en) * | 2001-11-12 | 2008-01-11 | 주식회사 포스코 | Sediment removing apparatus of liquid tank |
| JP2011194306A (en) * | 2010-03-18 | 2011-10-06 | Kurita Water Ind Ltd | Method for treating wet coating booth-circulating water |
-
1993
- 1993-04-23 JP JP5120760A patent/JPH06304506A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100792753B1 (en) * | 2001-11-12 | 2008-01-11 | 주식회사 포스코 | Sediment removing apparatus of liquid tank |
| JP2011194306A (en) * | 2010-03-18 | 2011-10-06 | Kurita Water Ind Ltd | Method for treating wet coating booth-circulating water |
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