JPH0639377A - Method and apparatus for recovery of waste paint - Google Patents
Method and apparatus for recovery of waste paintInfo
- Publication number
- JPH0639377A JPH0639377A JP4196664A JP19666492A JPH0639377A JP H0639377 A JPH0639377 A JP H0639377A JP 4196664 A JP4196664 A JP 4196664A JP 19666492 A JP19666492 A JP 19666492A JP H0639377 A JPH0639377 A JP H0639377A
- Authority
- JP
- Japan
- Prior art keywords
- waste paint
- paint
- waste
- mixed water
- 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.)
- Granted
Links
- 239000003973 paint Substances 0.000 title claims abstract description 114
- 239000002699 waste material Substances 0.000 title claims abstract description 106
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000000926 separation method Methods 0.000 claims abstract description 39
- 239000010802 sludge Substances 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000010422 painting Methods 0.000 description 10
- 238000002156 mixing Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010837 adhesive waste Substances 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/46—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material
- B05B14/462—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material and separating the excess material from the washing liquid, e.g. for recovery
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は特に自動車の車体等を塗
装する塗装工場の塗装ブースから排出される廃塗料を回
収する廃塗料回収方法及びその装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste paint collecting method and apparatus for collecting waste paint discharged from a painting booth of a painting factory for painting car bodies.
【０００２】[0002]
【従来の技術】自動車等の塗装工場では、塗装ブース内
をコンベヤで搬送される車体に塗料を吹き付けて塗装す
る一方、塗装に寄与しなかったミスト状の廃塗料を水と
混合して分離水槽内に排出している。一般に、塗装ブー
スに供給される全塗料のうち約４７％は車体の塗装に使
用され、残りの５３％は廃塗料となる。また、分離水槽
内に貯溜される廃塗料混入水（約１５０ｔｏｎ）中には
約１５％の多量の廃塗料が含まれている。従来、分離水
槽に貯溜されている廃塗料混入水より廃塗料を回収する
ために、浮遊塗料を人力で採取したり、周期的に水を抜
いて沈殿塗料を回収したり、あるいは脱水機を定置して
おいて、分離水槽内の廃塗料混入水を吸引して当該脱水
機にかけて廃塗料を分離していた。2. Description of the Related Art In a painting factory such as an automobile, paint is sprayed onto a vehicle body conveyed by a conveyor in a painting booth, while a mist-like waste paint that does not contribute to painting is mixed with water to separate a water tank. Is discharged inside. Generally, about 47% of the total paint supplied to the paint booth is used for painting the vehicle body, and the remaining 53% is waste paint. Further, the waste paint mixed water (about 150 tons) stored in the separation water tank contains a large amount of waste paint of about 15%. Conventionally, in order to collect waste paint from the water mixed with waste paint stored in a separation water tank, floating paint is manually collected, water is periodically drained to collect the precipitated paint, or a dehydrator is installed. Then, the waste paint mixed water in the separation water tank is sucked and the waste paint is separated by the dehydrator.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前述の
浮遊塗料や沈殿塗料を回収する方法は、多大な時間とコ
ストがかかるうえ、作業効率が極めて悪かった。廃塗料
は粘着性を有するため、分離水槽の内壁及び周辺部に付
着して回収がしにくいうえ、回収後の取り扱いが極めて
不便であり、再利用が困難であった。また、分離水槽の
周辺やフィルター、ポンプストレーナに廃塗料が付着す
るので、頻繁にメンテナンスを行う必要があった。この
ため、分離水槽に脱水機を設ける場合には、その脱水機
を複数台設置する必要があり、イニシャルコストが増加
するという問題があった。However, the above-mentioned method for recovering the floating paint or the precipitation paint takes a lot of time and cost, and the working efficiency is extremely poor. Since the waste paint has adhesiveness, it adheres to the inner wall and the peripheral part of the separation water tank and is difficult to collect, and it is extremely inconvenient to handle after collection and it is difficult to reuse it. Further, since the waste paint adheres to the periphery of the separation water tank, the filter and the pump strainer, frequent maintenance is required. Therefore, when a dehydrator is provided in the separated water tank, it is necessary to install a plurality of dehydrators, which causes a problem of increasing the initial cost.
【０００４】さらに、分離水槽内の水を周期的に排水し
て沈殿塗料を回収する方法は、次ぎの回収時期まで分離
水槽内の廃塗料混入水を長期間貯溜することになるの
で、藻が発生して悪臭や蚊等の害虫が発生する原因とな
るうえ、酸性の廃塗料によって水槽の壁や配管の腐食が
早まる等の問題があった。本発明はこのような問題点に
鑑みてなされたもので、廃塗料を容易にかつ効率よく、
低コストで回収することができる廃塗料回収方法及びそ
の装置を提供することを目的とするものである。Further, in the method of periodically draining the water in the separation water tank to recover the precipitated paint, since the waste paint mixed water in the separation water tank is stored for a long time until the next recovery time, algae are generated. However, there is a problem in that it causes foul odors and harmful insects such as mosquitoes, and that the acid waste paint accelerates the corrosion of the aquarium wall and piping. The present invention has been made in view of such problems, the waste paint easily and efficiently,
An object of the present invention is to provide a waste paint recovery method and an apparatus therefor that can be recovered at low cost.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するた
め、本発明に係る廃塗料回収方法は、塗装ブースから分
離水槽に排出される廃塗料混入水から粘着性の高い廃塗
料を回収する廃塗料回収方法において、分離水槽内の廃
塗料混入水に廃塗料を凝集非粘着化する薬液を注入した
後、当該廃塗料混入水を移動車両に搭載された遠心分離
機で脱水して、廃塗料を非粘着性固型スラッジとして回
収するものである。前記遠心分離機で廃塗料混入水を脱
水する前に、当該廃塗料混入水を冷却してもよい。ま
た、本発明に係る廃塗料回収装置は、塗装ブースから分
離水槽に排出される廃塗料混入水から粘着性の高い廃塗
料を回収する廃塗料回収装置において、分離水槽内の廃
塗料混入水を吸引する吸引ユニットと、該吸引ユニット
により吸引される廃塗料混入水を脱水することにより廃
塗料を非粘着性固形スラッジとして分離して回収する遠
心分離機とを備え、これらを移動車両に搭載したもので
ある。なお、この廃塗料回収装置には、前記吸引ユニッ
トにより吸引される廃塗料混入水を冷却する冷却ユニッ
トを備えてもよい。In order to achieve the above object, the waste paint recovery method according to the present invention is a waste paint recovery process for recovering highly viscous waste paint from waste paint mixed water discharged from a coating booth to a separation water tank. In the paint recovery method, after injecting a chemical solution that agglomerates the waste paint into the waste paint mixed water in the separation water tank, dewatering the waste paint mixed water with a centrifuge installed in a moving vehicle, the waste paint Is recovered as non-adhesive solid sludge. Before the waste paint mixed water is dehydrated by the centrifugal separator, the waste paint mixed water may be cooled. Further, the waste paint collecting device according to the present invention is a waste paint collecting device for collecting highly-adhesive waste paint from the waste paint mixed water discharged from the coating booth to the separation water tank, in which the waste paint mixed water in the separation water tank is collected. A suction unit for sucking and a centrifuge for separating and collecting the waste paint as non-adhesive solid sludge by dehydrating the waste paint mixed water sucked by the suction unit were mounted on a mobile vehicle. It is a thing. The waste paint collecting device may include a cooling unit that cools the waste paint mixed water sucked by the suction unit.
【０００６】[0006]
【作用】前記廃塗料回収方法では、分離水槽内の廃塗料
混入水に薬液を注入すると、廃塗料は凝集して非粘着化
する。この非粘着化された廃塗料は、遠心分離機で簡単
に分離されて非粘着性固形スラッジとなる。なお、遠心
分離機の前で廃塗料を冷却するようにすると、廃塗料の
粘着性が低下するので遠心分離機での分離性が良くな
る。一方、前記廃塗料回収装置では、移動車両に吸引ユ
ニット及び遠心分離機を備えているので、各所の分離水
槽に自由に軽便に移動して回収作業を行うことができ、
また各分離水槽毎にこれらのユニットや遠心分離機を定
置する必要がない。In the waste paint recovery method, when the chemical liquid is injected into the waste paint mixed water in the separation water tank, the waste paint agglomerates and becomes non-adhesive. This non-tackified waste paint is easily separated by a centrifuge into non-tacky solid sludge. When the waste paint is cooled in front of the centrifuge, the adhesiveness of the waste paint is reduced, and the separability in the centrifuge is improved. On the other hand, in the waste paint recovery device, since the moving vehicle is equipped with the suction unit and the centrifuge, it is possible to freely and easily carry out the recovery work to the separation water tanks at various places,
Further, it is not necessary to place these units and centrifuges for each separation water tank.
【０００７】[0007]
【実施例】次に、本発明の実施例を添付図面に従って説
明する。図１は本発明に係る廃塗料回収方法の概念図で
あり、図において１は塗装ブース、２は分離水槽、３は
移動車両である。塗装ブース１内では、コンベヤ４によ
り搬送される自動車の車体５に塗料が吹き付けられ塗装
が行われる。塗装に寄与しなかった塗料は、廃塗料とし
て水とともに塗装ブース１の下部層６へ流れる。次に、
この廃塗料混入水は分離水槽２へ排水されて貯溜された
後、フィルター７を経て循環ポンプ８により塗装ブース
１に戻される。Embodiments of the present invention will now be described with reference to the accompanying drawings. FIG. 1 is a conceptual diagram of a waste paint recovery method according to the present invention. In the figure, 1 is a coating booth, 2 is a separation water tank, and 3 is a moving vehicle. In the coating booth 1, paint is sprayed on the vehicle body 5 of the automobile conveyed by the conveyor 4 to perform coating. The paint that has not contributed to the painting flows as waste paint to the lower layer 6 of the painting booth 1 together with water. next,
The waste paint mixed water is drained to the separation water tank 2 and stored therein, and then returned to the coating booth 1 through the filter 7 and the circulation pump 8.
【０００８】この分離水槽２に貯溜された廃塗料混入水
より廃塗料を回収する方法は、薬液注入工程と遠心分離
工程からなる。薬液注入工程では、予め、分離水槽２に
薬液を０．０３％添加しておく。この薬液としては、カ
チオン性高分子凝集剤やノニオン性高分子凝集剤を主成
分とするもので、（株）ネオス製のブースクリーナー♯
１５０が好ましい。以後、分離水槽２に設置された薬液
タンクより前述の薬液を常時注入する。その注入量は、
塗装ブース１より排出される廃塗料のオーバースプレー
量に対し３〜５％が適切である。この薬液の注入によ
り、分離水槽２内の廃塗料は凝集して非粘着化し、粒状
固化する。A method of recovering the waste paint from the waste paint-mixed water stored in the separation water tank 2 comprises a chemical injection step and a centrifugal separation step. In the chemical injection step, 0.03% of the chemical is added to the separation water tank 2 in advance. This chemical solution contains a cationic polymer flocculant and a nonionic polymer flocculant as a main component, and is a booth cleaner # manufactured by Neos Co., Ltd.
150 is preferred. After that, the aforementioned chemical liquid is constantly injected from the chemical liquid tank installed in the separation water tank 2. The injection volume is
3 to 5% is appropriate for the amount of overspray of the waste paint discharged from the coating booth 1. By this injection of the chemical liquid, the waste paint in the separation water tank 2 aggregates to be non-adhesive and solidify into particles.
【０００９】遠心分離工程は、移動車両３に搭載された
遠心分離機９により行う。すなわち、移動車両３を分離
水槽２の近辺に移動させ、その分離水槽２内の廃塗料混
入水を吸引して遠心分離機９に導く。この遠心分離機９
により、廃塗料混入水は廃塗料と水に分離され、廃塗料
は非粘着性固形スラッジとして回収される。回収された
廃塗料は、おが屑等と混合され、ボイラ等の燃料として
再利用される。一方、分離された水は分離水槽２内に戻
される。The centrifuging step is performed by the centrifuge 9 mounted on the moving vehicle 3. That is, the moving vehicle 3 is moved to the vicinity of the separation water tank 2, and the waste paint mixed water in the separation water tank 2 is sucked and guided to the centrifugal separator 9. This centrifuge 9
Thereby, the water mixed with the waste paint is separated into the waste paint and the water, and the waste paint is recovered as non-adhesive solid sludge. The collected waste paint is mixed with sawdust and the like and reused as fuel for boilers and the like. On the other hand, the separated water is returned to the separation water tank 2.
【００１０】なお、夏の高温時には、廃塗料の粘着性が
高くなっているので、遠心分離機９での分離性が悪くな
る。そこで、このような場合には、遠心分離工程の前に
冷却工程を設けて廃塗料を冷却する。この冷却により、
廃塗料混入水の温度が低下し、粘着性が低くなるので、
遠心分離機９での分離性が向上する。また、場所によっ
てこのような冷却工程を設けることが不可能な場合は、
薬液の注入量の増減によって対処することができる。At high temperatures in summer, the adhesiveness of the waste paint is high, so that the separability of the centrifugal separator 9 is deteriorated. Therefore, in such a case, a cooling step is provided before the centrifugation step to cool the waste paint. By this cooling,
Since the temperature of water mixed with waste paint decreases and the adhesiveness decreases,
Separability in the centrifuge 9 is improved. If it is not possible to provide such a cooling process depending on the location,
This can be dealt with by increasing or decreasing the injection amount of the liquid medicine.
【００１１】図２は本発明に係る廃塗料回収装置のフロ
ー図、図３は移動車両３の側面図である。以下、これら
について説明する。図２において、分離水槽２の廃塗料
混入水を吸引する吸引ラインは、冷却器１０を介して吸
引ポンプ１１の吸込側に接続され、該吸引ポンプ１２の
吐出側は一次受水槽１２の入口に接続されている。この
一次受水槽１２の廃塗料を吸引する給水ポンプ１３の吐
出側は、電磁流量計１４及びバルブ１５を介して混合タ
ンク１６の入口に接続されている。一方、添加用薬液タ
ンク１７の薬液を吸引する定量ポンプ１８の吐出側は電
磁流量計１９を介して混合タンク１６の薬液添加口に接
続されている。前記混合タンク１６の出口は遠心分離機
９の給水口に接続されている。また、遠心分離機９の排
水口は排水タンク２０を経て排水ポンプ２１の吸込側に
接続され、該排水ポンプ２１の吐出側の排水ラインは分
離水槽２に導かれている。遠心分離機９のスラッジ出口
の下方には、回収されるスラッジを車両後方の受け取り
易い位置に搬送するためのベルトコンベヤ２２が設けら
れている。FIG. 2 is a flow chart of the waste paint collecting apparatus according to the present invention, and FIG. 3 is a side view of the moving vehicle 3. These will be described below. In FIG. 2, the suction line for sucking the waste paint-mixed water in the separation water tank 2 is connected to the suction side of the suction pump 11 via the cooler 10, and the discharge side of the suction pump 12 is connected to the inlet of the primary water receiving tank 12. It is connected. The discharge side of the water supply pump 13 for sucking the waste paint in the primary water receiving tank 12 is connected to the inlet of the mixing tank 16 via the electromagnetic flow meter 14 and the valve 15. On the other hand, the discharge side of the metering pump 18 for sucking the chemical liquid in the addition chemical liquid tank 17 is connected to the chemical liquid addition port of the mixing tank 16 via the electromagnetic flow meter 19. The outlet of the mixing tank 16 is connected to the water inlet of the centrifuge 9. Further, the drainage port of the centrifugal separator 9 is connected to the suction side of the drainage pump 21 via the drainage tank 20, and the drainage line on the discharge side of the drainage pump 21 is guided to the separation water tank 2. Below the sludge outlet of the centrifuge 9, there is provided a belt conveyor 22 for transporting the recovered sludge to a position where it is easily received behind the vehicle.
【００１２】図３の移動車両３の荷台には、前記図２に
示す各機器が搭載されている。すなわち、荷台の後部に
設けられたハンドリングアーム２３に、フレキシブル吸
引管２４及び冷却器１０が取り付けられている。冷却器
１０は、いわゆる２重管式熱交換器で、内管には冷媒が
供給され、該内管と外管の間には廃塗料混入水が流動す
るように構成されている。この冷却器１０とハンドリン
グアーム２３は、これに限定するものではなく、他の形
式のものを採用することもできる。荷台の後部には、図
２に示す吸引ポンプ１１，一次受水槽１２，給水ポンプ
１３，電磁流量計１４，バルブ１５及び排水ポンプ２１
等を含むポンプユニット２５と、遠心分離機９と、排水
タンク２０と、ベルトコンベヤ２２とが搭載されてい
る。また、荷台の前部には、薬液タンク１７（定量ポン
プ１８及び電磁流量計１９を含む）と、操作盤２６とが
搭載されている。さらに、この移動車両３の荷台には、
前記冷却器１０に冷媒を供給する冷凍ユニットも搭載さ
れている。The equipment shown in FIG. 2 is mounted on the bed of the moving vehicle 3 shown in FIG. That is, the flexible suction pipe 24 and the cooler 10 are attached to the handling arm 23 provided at the rear part of the loading platform. The cooler 10 is a so-called double-pipe heat exchanger, and is configured such that a refrigerant is supplied to the inner pipe and waste paint mixed water flows between the inner pipe and the outer pipe. The cooler 10 and the handling arm 23 are not limited to this, and other types can be adopted. A suction pump 11, a primary water receiving tank 12, a water supply pump 13, an electromagnetic flow meter 14, a valve 15 and a drainage pump 21 shown in FIG.
A pump unit 25 including the above, a centrifugal separator 9, a drain tank 20, and a belt conveyor 22 are mounted. Further, a chemical solution tank 17 (including the metering pump 18 and the electromagnetic flow meter 19) and an operation panel 26 are mounted on the front part of the platform. In addition, the carrier of this moving vehicle 3
A refrigeration unit for supplying a refrigerant to the cooler 10 is also mounted.
【００１３】次に、前記構成からなる廃塗料回収装置に
より廃塗料を回収する作業を説明する。予め、分離水槽
２の横に設置された薬液タンクより、廃塗料のオーバー
スプレー量の３〜５％の薬液を常時添加しておく。ま
ず、図３に示すように、回収しようとする分離水槽２の
近辺に移動車両３を移動させる。そして、ハンドリング
アーム２３又は他の方法によって吸引管２４の先端の取
水口を分離水槽２内に浸漬する。続いて、遠心分離機９
及びベルトコンベヤ２２を駆動するとともに、ポンプユ
ニット２５の吸引ポンプ１１及び給水ポンプ１３を駆動
する。なお、夏の高温時には必要に応じて冷却器１０に
冷媒を供給する。Next, an operation of collecting the waste paint by the waste paint collecting device having the above-mentioned structure will be described. 3-5% of the amount of overspray of the waste paint is always added in advance from a chemical tank installed beside the separation water tank 2. First, as shown in FIG. 3, the moving vehicle 3 is moved to the vicinity of the separation water tank 2 to be collected. Then, the water intake at the tip of the suction pipe 24 is immersed in the separation water tank 2 by the handling arm 23 or another method. Then, centrifuge 9
In addition to driving the belt conveyor 22, the suction pump 11 and the water supply pump 13 of the pump unit 25 are driven. When the temperature is high in summer, the refrigerant is supplied to the cooler 10 as needed.
【００１４】吸引管２４を介して吸引される廃塗料混入
水は、図２に示すように、冷却器１０を通過して冷却さ
れ、吸引ポンプ１１を経て一次受水槽１２に貯溜され
る。続いて、この一次受水槽１２内の廃塗料混入水は、
給水ポンプ１３により吸引されて電磁流量計１４及びバ
ルブ１５を経て混合タンク１６に送られる。ここで、薬
液濃度が低い場合、又は廃塗料の粘度が高い場合は、定
量ポンプ１８を駆動して薬液タンク１７の薬液を電磁流
量計１９を介して混合タンク１６内の廃塗料混入水に添
加し、所定の濃度又は粘度に調整する。このように濃度
又は粘度が調整された混合タンク１６内の廃塗料混入水
は遠心分離機９に供給されて脱水される。分離された水
は遠心分離機９より流出して排水タンク２０に一時貯溜
された後、排水ポンプ２１により分離水槽２内に戻され
る。また、遠心分離機９のドラム壁面に捕獲された廃塗
料は、遠心分離機９によってベルトコンベヤ２２上に排
出され、回収容器２７内に非粘着性固型スラッジとして
回収される。このようにして、移動車両３の荷台上で廃
塗料の回収作業が連続して効率よく行われる。As shown in FIG. 2, the waste paint mixed water sucked through the suction pipe 24 passes through the cooler 10, is cooled, and is stored in the primary water receiving tank 12 through the suction pump 11. Then, the waste paint mixed water in the primary water receiving tank 12 is
It is sucked by the water supply pump 13 and sent to the mixing tank 16 via the electromagnetic flow meter 14 and the valve 15. Here, when the chemical concentration is low or the viscosity of the waste paint is high, the metering pump 18 is driven to add the chemical liquid in the chemical liquid tank 17 to the waste paint mixed water in the mixing tank 16 via the electromagnetic flow meter 19. Then, adjust to a predetermined concentration or viscosity. The waste paint-mixed water in the mixing tank 16 whose concentration or viscosity is adjusted in this way is supplied to the centrifugal separator 9 and dehydrated. The separated water flows out from the centrifuge 9 and is temporarily stored in the drainage tank 20 and then returned to the separation water tank 2 by the drainage pump 21. The waste paint captured on the drum wall surface of the centrifuge 9 is discharged onto the belt conveyor 22 by the centrifuge 9 and collected in the collection container 27 as non-adhesive solid sludge. In this way, the work of recovering the waste paint is continuously and efficiently performed on the bed of the moving vehicle 3.
【００１５】[0015]
【発明の効果】以上の説明から明らかなように、請求項
１〜請求項４に係る発明によれば、以下の効果を有す
る。 薬液により凝集非粘着化した廃塗料を遠心分離機によ
り分離して非粘着性固形スラッジとして回収できるの
で、回収作業が容易である。 回収された廃塗料は、非粘着性固形スラッジであるの
で、取り扱いやすく、工業燃料等に再利用が可能であ
る。 廃塗料は薬液により非粘着化されて遠心分離機にかけ
られるので、遠心分離機や配管内に廃塗料が付着する量
が少なくなり、それらのメンテナンスが殆ど不要で、結
果的に回収コストが低減する。 遠心分離機を搭載した移動車両上で回収を行うので、
塗装工場の各所にある分離水槽に自由にかつ軽便に接近
して作業を行うことができる。 回収設備を搭載した一台の車両で各所の分離水槽の廃
塗料を回収することができるので、各分離水槽には遠心
分離機等の回収設備を設ける必要がなく、総合的にはイ
ニシャルコストが低減する。 従来のように分離水槽内の水を排水して入れ換える必
要がなく、経済性，環境衛生の面においてもコストが低
減する。As is apparent from the above description, the inventions according to claims 1 to 4 have the following effects. The waste paint that has been made non-adhesive by coagulation with a chemical solution can be separated by a centrifuge and recovered as non-adhesive solid sludge, so that the recovery work is easy. The recovered waste paint is a non-adhesive solid sludge and is easy to handle and can be reused for industrial fuels. Since the waste paint is detackified by the chemical liquid and applied to the centrifuge, the amount of the waste paint attached to the centrifuge and pipes is reduced, maintenance of them is almost unnecessary, and the recovery cost is reduced as a result. . Since collection is performed on a moving vehicle equipped with a centrifuge,
It is possible to work freely and easily by accessing the separation tanks in various places of the painting factory. Since it is possible to collect the waste paint in the separation water tanks of various places with one vehicle equipped with the recovery equipment, it is not necessary to install a recovery equipment such as a centrifuge in each separation water tank, and the initial cost is generally high. Reduce. Unlike the conventional method, it is not necessary to drain and replace the water in the separation water tank, which reduces costs in terms of economy and environmental hygiene.
【００１６】また、特に請求項２及び請求項４に係る発
明によれば、上記効果に加えて次の効果を有する。 遠心分離機にかける前に廃塗料混入水が冷却されるの
で、夏の高温時に廃塗料の粘着性を低下させることがで
き、遠心分離機での分離性が向上する。 遠心分離機や配管内での廃塗料の付着がさらに少なく
なり、回収やメンテナンスが極めて容易になる。According to the second and fourth aspects of the invention, in addition to the above effects, the following effects are obtained. Since the water mixed with the waste paint is cooled before being applied to the centrifuge, the stickiness of the waste paint can be reduced when the temperature is high in summer, and the separability in the centrifuge is improved. The adherence of waste paint in the centrifuge and piping is further reduced, and collection and maintenance are extremely easy.
【図１】 本発明に係る廃塗料回収方法の概念図であ
る。FIG. 1 is a conceptual diagram of a waste paint recovery method according to the present invention.
【図２】 本発明に係る廃塗料回収装置のフロー図であ
る。FIG. 2 is a flow chart of a waste paint recovery device according to the present invention.
【図３】 廃塗料回収装置を搭載した移動車両の側面図
である。FIG. 3 is a side view of a mobile vehicle equipped with a waste paint recovery device.
１…塗装ブース、 ２…分離水槽、 ３…移動車両、 ９…遠心分離機、 １０…冷却器（冷却ユニット）、 １１…吸引ポンプ（吸引ユニット）、 ２４…吸引管（吸引ユニット）。 DESCRIPTION OF SYMBOLS 1 ... Coating booth, 2 ... Separation water tank, 3 ... Moving vehicle, 9 ... Centrifuge, 10 ... Cooler (cooling unit), 11 ... Suction pump (suction unit), 24 ... Suction pipe (suction unit).
Claims (4)
塗料混入水から粘着性の高い廃塗料を回収する廃塗料回
収方法において、 分離水槽内の廃塗料混入水に廃塗料を凝集非粘着化する
薬液を注入した後、当該廃塗料混入水を移動車両に搭載
された遠心分離機で脱水して、廃塗料を非粘着性固型ス
ラッジとして回収することを特徴とする廃塗料回収方
法。1. A waste paint recovery method for recovering highly viscous waste paint from waste paint mixed water discharged from a coating booth to a separate water tank, wherein the waste paint is agglomerated and non-adhesive to the waste paint mixed water in the separation water tank. After injecting the chemical liquid, the waste paint mixed water is dehydrated by a centrifuge mounted on a moving vehicle to recover the waste paint as non-adhesive solid sludge.
る前に、当該廃塗料混入水を冷却することを特徴とする
請求項１に記載の廃塗料回収方法。2. The waste paint recovery method according to claim 1, wherein the waste paint mixed water is cooled before the waste paint mixed water is dehydrated by the centrifuge.
塗料混入水から粘着性の高い廃塗料を回収する廃塗料回
収装置において、 分離水槽内の廃塗料混入水を吸引する吸引ユニットと、
該吸引ユニットにより吸引される廃塗料混入水を脱水す
ることにより廃塗料を非粘着性固形スラッジとして分離
して回収する遠心分離機とを備え、これらを移動車両に
搭載したことを特徴とする廃塗料回収装置。3. A waste paint collecting device for collecting highly viscous waste paint from waste paint mixed water discharged from a coating booth to a separation water tank, and a suction unit for sucking waste paint mixed water in the separation water tank,
And a centrifugal separator for separating and collecting the waste paint as non-adhesive solid sludge by dehydrating the water mixed with the waste paint sucked by the suction unit, which is mounted on a moving vehicle. Paint recovery device.
料混入水を冷却する冷却ユニットを備えたことを特徴と
する請求項３に記載の廃塗料回収装置。4. The waste paint collecting device according to claim 3, further comprising a cooling unit for cooling the waste paint mixed water sucked by the suction unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4196664A JPH0741248B2 (en) | 1992-07-23 | 1992-07-23 | Waste paint recovery method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4196664A JPH0741248B2 (en) | 1992-07-23 | 1992-07-23 | Waste paint recovery method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0639377A true JPH0639377A (en) | 1994-02-15 |
| JPH0741248B2 JPH0741248B2 (en) | 1995-05-10 |
Family
ID=16361547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4196664A Expired - Fee Related JPH0741248B2 (en) | 1992-07-23 | 1992-07-23 | Waste paint recovery method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0741248B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2802448A1 (en) * | 1999-12-21 | 2001-06-22 | Nippon Paint Co Ltd | WATER-BASED PAINT RECYCLING PROCESS |
| JP2008149299A (en) * | 2006-12-20 | 2008-07-03 | Amatei Inc | Color coating apparatus for nail |
| CN114405676A (en) * | 2022-01-14 | 2022-04-29 | 山东宝塔新能源有限公司 | Waste recycling system |
-
1992
- 1992-07-23 JP JP4196664A patent/JPH0741248B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2802448A1 (en) * | 1999-12-21 | 2001-06-22 | Nippon Paint Co Ltd | WATER-BASED PAINT RECYCLING PROCESS |
| JP2008149299A (en) * | 2006-12-20 | 2008-07-03 | Amatei Inc | Color coating apparatus for nail |
| CN114405676A (en) * | 2022-01-14 | 2022-04-29 | 山东宝塔新能源有限公司 | Waste recycling system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0741248B2 (en) | 1995-05-10 |
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