WO2013078724A1 - Système et procédé de recyclage de peinture atomisée pulvérisée de manière excessive - Google Patents

Système et procédé de recyclage de peinture atomisée pulvérisée de manière excessive Download PDF

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Publication number
WO2013078724A1
WO2013078724A1 PCT/CN2011/083627 CN2011083627W WO2013078724A1 WO 2013078724 A1 WO2013078724 A1 WO 2013078724A1 CN 2011083627 W CN2011083627 W CN 2011083627W WO 2013078724 A1 WO2013078724 A1 WO 2013078724A1
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WO
WIPO (PCT)
Prior art keywords
paint
airflow
super
spray
exhaust
Prior art date
Application number
PCT/CN2011/083627
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English (en)
Chinese (zh)
Inventor
王斌
李秀范
赵华
Original Assignee
Wang Bin
Li Xiufan
Zhao Hua
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wang Bin, Li Xiufan, Zhao Hua filed Critical Wang Bin
Publication of WO2013078724A1 publication Critical patent/WO2013078724A1/fr

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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
    • B05B14/41—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by cleaning the walls of the booth
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/80—Movable spray booths
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the invention relates to the field of water-based paint coating, and in particular to an ultra-spray paint mist recycling and utilization system and method. Background technique
  • the paint sprayed from the spray gun is sprayed onto the coated workpiece in the form of atomization. Some of the paint falls on the coated workpiece, while the other part is beyond the paint mist of the workpiece. It is a super spray paint mist. In the painting operation, the super spray paint mist easily spreads to the wall around the spray booth, causing serious pollution of the working environment and loss of a large amount of paint.
  • the coating industry in the United States, Germany, Switzerland, Italy, Canada, Japan and other countries often use ultra-spray paint mist from the wet paint booth, and then use ultrafiltration (UF) method to recover the super spray paint mist, but the cost of this method is High; From the perspective of the technical requirements of the translation, the UF recovery method also needs to use chemical additives to restore the viscosity of the curing of the coating. However, these additives do limit the reuse of the solids of the recovered coating, so the current recycling method Not ideal enough.
  • the problem to be solved by the present invention is to provide an ultra-spray paint mist recovery system and method, which can efficiently recover super spray paint mist, save energy, recover resources, reduce paint loss, and completely solve environmental pollution of painting operation. Dyeing problem.
  • an ultra-spray paint mist recovery system comprising: sequentially setting a paint mist gathering device along the airflow direction, an overspray paint mist recovery device and an air exhaust device, and the paint mist gathering device is disposed on the coating.
  • the air blowing side of the working area, the super spray paint mist collecting device is disposed on the exhaust side of the painting working area;
  • the paint mist collecting device comprises an air conditioning unit and a composite static pressure chamber connected thereto, and the composite of the paint mist collecting device
  • the static pressure chamber contains a secondary static pressure chamber and is enclosed in a static pressure chamber.
  • the multi-layer laminar flow control valve is used.
  • the exhaust end of the composite static pressure chamber includes three nested exhaust openings, which are sequentially arranged from the inside to the outside.
  • the painting work area is further provided with a spray gun for painting the workpiece and an air flow speed sensor disposed between the air discharge outlet of the air supply composite static pressure chamber and the workpiece to be coated and adjacent to the spray gun, and A suspension conveyor for transporting workpieces above the work area.
  • the super spray paint mist recovery device comprises a gas water atomization device, a paint collection bucket, and at least two rows of paint plates corresponding to the front and rear misalignment, wherein the paint strip is facing the painting work area, and the paint plate is directly opposite.
  • One side of the painting area is a windward side
  • the gas water atomizing device is arranged on the windward side of the paint strip
  • the paint collecting barrel is arranged under the paint mist paint board; each row of paint mist paint board is two
  • each row of paint mist paint board is two
  • the flat plate above the block is spliced, and there is a gap between the paint plates.
  • the front and rear two rows of paint plates are arranged in a wrong position, and the gap between the front paint strips is centered on the center of the rear paint plate.
  • each of the paint spray panels is provided with an automatic squeegee on the windward side, the automatic squeegee being in surface contact with the lacquer panel.
  • a toothed belt transmission is further provided, and the gas water atomizing device and the paint squeegee are both disposed on the toothed belt transmission.
  • the air exhausting device comprises an exhaust filter and an exhaust fan, and the exhaust filter is connected in series between the super spray paint mist recovery device and the exhaust fan through a duct.
  • the paint transfer plate is provided with a gas water atomizing device for ensuring that the plate surface of the paint receiving plate is wet.
  • An ultra-painting mist recycling method includes the following steps:
  • Outputs three different speeds of airflow to the painting work area including inner airflow and package from the inside to the outside a middle layer airflow surrounding the inner layer airflow and an outer layer airflow surrounding the middle layer airflow, wherein the inner layer airflow has a flow rate of 0.4 m/s to 0.6 m/s for spraying the workpiece; the middle layer airflow has a flow rate of 0.1 m / s ⁇ 0.3m / s; the flow rate of the outer layer of air flow is lm / s ⁇ 3m / s; and the inner and middle air streams are laminar;
  • the airflow input into the painting work area is surrounded by the paint mist sprayed from the spray gun in the painting work area, and the paint mist sprays the workpiece along the direction of the air flow;
  • the resulting superspray paint mist is intercepted and captured and then further intercepted by an exhaust filter.
  • the invention provides a super-spray paint mist automatic online recycling system, which adopts a composite static pressure chamber to discharge multi-speed laminar flow to form airflow barrier encircles of different speeds, closely surrounds the paint mist of the painting operation area, and gathers the paint mist.
  • the super spray paint mist is efficiently intercepted and collected by passing the super spray paint mist recovery device in the single direction of the exhaust air flow.
  • the use of the super spray paint mist recovery system of the invention completely solves the environmental pollution problem, improves the safety and sanitary conditions of the working environment inside the paint booth, and achieves the purpose of energy saving and recycling of resources, and the recovery rate of the super spray paint mist is as high as 81.7%, recycling
  • the super spray paint has high quality and can be directly reused on site to reduce the production cost of the product; it can realize fully automatic online control and easy operation.
  • FIG. 1 is a schematic view of a super-spray paint mist automatic online recycling system provided by a specific embodiment of the present invention
  • FIG. 2 is a schematic structural view showing an arrangement of the air supply and exhaust vents of the composite static pressure chamber shown in FIG. 1;
  • FIG. 3 is a front view of the super spray paint mist recovery device in the super spray paint mist recovery system shown in FIG. 1;
  • 4 is a side view of the super spray paint mist recovery device shown in FIG. 3;
  • Fig. 5 is a structural schematic view of the gas water atomizing device of the super spray paint mist recovery device of Fig. 3.
  • FIG. 1 is a schematic diagram of a super-spray paint mist automatic online recycling system according to an embodiment of the present invention.
  • the super spray paint mist recovery system includes a paint disposed along the direction of the air flow in the spray booth 1 .
  • the mist gathering device, the super spray paint mist collecting device and the air exhaust device, the paint mist collecting device and the super spray paint mist collecting device are respectively disposed on the air inlet side and the air exhaust side of the painting work area 2.
  • the paint mist collecting device comprises an air conditioning unit 11 and a composite static pressure chamber 12 connected thereto, and the air flow generated by the air conditioning unit 11 is discharged into the painting working area 2 through the composite static pressure chamber 12 into a plurality of laminar flow.
  • the airflow discharged from the static pressure chamber of the air supply system is usually a single air flow speed, and the super spray paint mist in the painting work area is still easily scattered to objects such as surrounding walls, ceilings, floors, etc., and the present invention This has been a major improvement.
  • the airflow discharge port of the composite static pressure chamber is composed of three layers of nested tuy Guatemala.
  • FIG. 2 is a structural schematic diagram of an arrangement manner of the exhaust port of the composite static pressure chamber shown in FIG. From the inside to the outside, there are an inner exhaust vent 121, an intermediate vent 122, and an outer vent 123.
  • the three airflow discharge ports discharge airflow of three different flow rates, the wind speed of the intermediate air outlet 122 is lower than the wind speed of the inner air outlet 121, and the wind speed of the outer air outlet 123 is higher than the wind speed of the inner discharge port 121.
  • the inner layer exhaust port 121 is coated with the workpiece in the painting working area, and the workpiece is sprayed.
  • the low and high airflows form two layers of wind curtain barriers with different wind speeds on the periphery of the paint mist.
  • the super-spraying paint closely surrounds the inner layer, so that it only flows along the airflow of the exhaust airflow, which strictly prevents the super-painting mist from spreading in the painting operation area and spreads to the surrounding area, preventing the pollution of the environment by the super-painting fog in the working area.
  • the hygienic and safe conditions of the working environment are greatly improved, and the recovery rate of the super spray paint mist is improved.
  • a painting device is disposed in the painting working area 2, and is disposed on the airflow discharging side of the composite static pressure chamber 12, and includes a spray gun 22 facing the coated workpiece 23, and an airflow discharge port and a coated workpiece disposed in the composite static pressure chamber 12.
  • a porous plate controllable regulating valve for discharging the laminar flow is arranged at the inlet of the composite static pressure chamber 12, and the airflow speed signal sent by the airflow speed sensor 21 at the spray gun 22 is monitored in real time.
  • the perforated plate adjusts the valve to dynamically control the laminar flow velocity of the inner vent 121 of the composite static pressure chamber 12 in real time.
  • FIG. 3 is a front view of the super spray paint mist recovery device in the super spray paint mist recovery system shown in FIG. 1, and FIG. 4 is a side view of the super spray paint mist recovery device shown in FIG.
  • the super spray paint mist recovery device 3 comprises a gas water atomizing device 32, a paint collecting bucket 35, at least two rows of paint strips 31 in front and rear, and the paint strip 31 is coated with the workpiece 23 facing the painting work area, and the paint strip 31 is positive.
  • One side of the painting work area is a windward side.
  • the gas water atomizing device 32 is disposed on the windward side of the paint strip 31, and the paint collecting barrel 35 is disposed under the paint mist paint plate 31; each of the paint strips 31 is formed by splicing two or more flat plates, and the paint is connected. There is a certain gap between the plates 31, and the front and rear two rows of paint strips 31 are arranged in a wrong position, and the gaps in the front row of paint strips are directed to the center of the rear row of paint strips.
  • the super-painting mist in the painting operation area is surrounded by the airflow of the paint mist collecting system, and when the airflow enters the ultra-spray recovery device, the painted paint plate 31 intercepts and collects and flows down the plate surface, and the recycling guide groove 34 flows into the set.
  • the paint bucket 35 is collected for recycling on site.
  • the paint strip 31 can be arranged in more rows to collect the super spray paint mist to a greater extent.
  • a soft contact automatic squeegee 33 is provided on the windward side of each of the lacquer plates 31, and the soft contact squeegee 33 and the slab 31 are in contact with each other at a predetermined time of the PLC program.
  • the automatic soft contact squeegee plate 33 is mainly used to prevent the curing of the paint residue on the lacquered surface of the non-working period during a long period of time. Therefore, each time the normal operation is completed, the automatic soft contact squeegee plate 33 will be automatically empty under the control of the PLC. The removal of the paint residue on the paint plate surface is repeated for 2-3 minutes.
  • FIG. 5 is a schematic structural view of the gas-water atomizing device of the super-painting mist recovery device illustrated in FIG.
  • the gas water atomizing device 32 includes a gas water atomizing nozzle 323 and a compressed air supply device 321 and a purified water supply device 322 respectively connected thereto.
  • a gas one-way throttle valve 324 is installed between the compressed air supply device and the gas-water atomizing nozzle 323; the purified water supply device 322 is provided for the gas-water atomizing device 32
  • a liquid one-way throttle valve 325 is installed between the gas-water atomizing nozzle 323 and the gas-water atomizing nozzle 323.
  • the gas-water atomizing device 32 can be used to make the surface of the paint-receiving plate 31 wet, and the intercepted paint can be automatically and continuously recovered into the paint collecting drum 35.
  • the entire gas water atomizing device 32 and the squeegee plate 33 are mounted on the transmissions 36 on both sides of the lacquer plate 31, and the transmission device 36 is moved up and down under the control of the PLC. Spraying the surface of the paint strip 31 during the movement, the pressure, flow direction, atomization degree, and spray range of the spray can be adjusted through the adjustment knob at the end of the nozzle, and through the gas one-way throttle valve
  • liquid one-way throttle valve 325 to control, to achieve a satisfactory degree of atomization and to ensure the reuse of recycled paint spray.
  • the transmission device 36 is driven by the speed reducer 364, the drive shaft 363, the drive wheel 362 and the toothed belt 361.
  • the components can be arranged in the upper middle position of the overall super-paint spray recovery device, wherein the toothed belt Safety protection covers are provided on the outside of the 361 and some parts.
  • the spray booth 1 must maintain a slight positive pressure state.
  • the operator in the painting work area must enter the work area through a special air shower device.
  • the paint bucket must be covered with a lid.
  • the above measures are used to prevent the paint from being contained inside the paint chamber. Dust and dirty air enters the spray booth to contaminate the paint in the work area, reducing the quality and ensuring that the on-line recycled paint meets the quality requirements for direct reuse.
  • the recycling device will alarm after the paint bucket is fully loaded.
  • the PLC system will send an audible signal to inform the site operator to replace the paint vat barrel, and send the recycled paint into the paint booth, directly into the new paint. It can be used normally after the paint adjustment is completed.
  • the exhaust device includes an exhaust filter 41 and an exhaust fan 42, and the exhaust filter 41 is connected in series between the super spray paint mist recovery device 3 and the exhaust fan 42.
  • the air conditioning unit 11 of the air supply system supplies air parameters to the painting work area to completely satisfy the application. New air required for loading work;
  • the airflow that meets the requirements of the painting operation is sent to the composite static pressure chamber 12 of the air supply system by the air supply system, and the multi-speed laminar flow that forms the layout of the paint mist accumulation system is discharged from the output side of the static pressure chamber to output three different speeds to the painting work area.
  • the airflow from the inside to the outside, includes an inner airflow, a middle airflow surrounding the inner airflow, and an outer airflow surrounding the middle airflow.
  • the inner airflow has a flow rate of 0.4 m/s to 0.6 m/s, and is used for spraying the workpiece.
  • the flow rate of the middle stream is 0.1m/s ⁇ 0.3m/s; the flow rate of the outer stream is lm/s ⁇ 3m/s.
  • the low-speed airflow and the high-speed airflow immediately adjacent to the inner airflow form two independent airflow barrier envelops.
  • the lower flow rate of the middle layer airflow can prevent the inner layer of the medium speed paint from spreading outward.
  • the outer layer airflow is tightly surrounded and prevents the paint mist from spreading out in the working area and polluting the working environment on the one hand:
  • the limit is controlled by the super spray paint mist, so that all the super spray paint mist will be collected by the paint mist recovery device to improve the paint mist recovery rate of the device.
  • the middle and outer airflow immediately surrounds the innermost layer with the paint mist sprayed from the spray gun, and the paint mist is wrapped in the inner airflow. in.
  • the paint that is intercepted and collected by the paint spray mist paint plate of the super spray paint mist recovery device under the cooperation of gravity and paint scraping board, is introduced into the paint collection bucket along the paint mist paint plate and the guide groove. Recycling.
  • the airflow is intercepted and captured by the paint mist capture system of the paint mist capture system through the recovery device, and the airflow carrying the remaining super spray paint mist is further intercepted and absorbed by the exhaust filter, and finally the paint mist content of the exhaust airflow is low.
  • the air after reaching the standard is discharged directly into the outdoor atmosphere.
  • the super spray paint mist recovery system provided by the invention can be used for painting operation, and can recover up to 81.7% of super spray paint mist, and the ultra-spray paint quality recovered by online is high, the field can be directly reused, and the running cost is low;
  • the outward spread of the paint mist completely solved the serious pollution problem of the wall around the spray booth in the past, and improved the painting environment, safety and sanitary conditions.

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  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

La présente invention concerne un système de recyclage de peinture atomisée pulvérisée de manière excessive, comprenant un dispositif de concentration de peinture atomisée, un dispositif de recyclage de peinture atomisée pulvérisée de manière excessive, et un dispositif d'échappement, qui sont disposés de manière séquentielle le long d'une direction d'écoulement de gaz. Le dispositif de concentration de peinture atomisée est disposé au niveau du côté d'alimentation en air d'une zone de revêtement (2). Le dispositif de recyclage de peinture atomisée pulvérisée de manière excessive est disposé au niveau du côté d'échappement de la zone de revêtement (2). Le dispositif de concentration de peinture atomisée comprend une unité de climatisation (11) et une chambre de pression statique composite (12) raccordée à celle-ci. La chambre de pression statique composite (12) comprend une chambre de pression statique secondaire enfermée dans une chambre de pression statique primaire, une extrémité d'échappement comprenant trois orifices d'échappement encastrés, à savoir un orifice d'échappement interne (121) pour évacuer un flux de gaz à vitesse moyenne, un orifice d'échappement intermédiaire (122) pour évacuer un flux de gaz à vitesse faible et un orifice d'échappement externe (123) pour évacuer un flux de gaz à vitesse élevée, qui sont disposés de manière séquentielle de l'intérieur vers l'extérieur. Le système de recyclage de peinture atomisée pulvérisée de manière excessive peut résoudre complètement le problème de pollution causé par la peinture atomisée pulvérisée de manière excessive sur l'environnement, améliorer les conditions de travail dans la salle de peinture, économiser de l'énergie et recycler des ressources. Le taux de recyclage de peinture atomisée pulvérisée de manière excessive peut aller jusqu'à 81,7 %, la qualité de la peinture recyclée est élevée, le coût d'exploitation est faible, et le coût de fabrication est réduit. Une commande entièrement automatique peut être obtenue, et le fonctionnement est simple et pratique.
PCT/CN2011/083627 2011-12-02 2011-12-07 Système et procédé de recyclage de peinture atomisée pulvérisée de manière excessive WO2013078724A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011103959257A CN102921586B (zh) 2011-12-02 2011-12-02 一种超喷漆雾回收系统及方法
CN201110395925.7 2011-12-02

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WO (1) WO2013078724A1 (fr)

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CN103316802B (zh) * 2013-06-06 2015-11-11 深圳市矽创优科技有限公司 Uv油漆无水回收系统
CN104028408B (zh) * 2014-06-05 2016-11-16 江苏中一汽车机械设备制造有限公司 并联式打磨、喷漆、烘干钣喷系统
CN104043554B (zh) * 2014-06-16 2016-04-06 陈文坤 一种喷房
CN104399633B (zh) * 2014-12-29 2017-02-22 王斌 具有超喷漆雾回收功能的喷漆室
CN108514976B (zh) * 2018-05-31 2024-05-24 广东工业大学 一种漆雾回收再利用装置及具有该装置的喷漆房
CN108855736A (zh) * 2018-07-20 2018-11-23 厦门建霖健康家居股份有限公司 一种喷涂装置

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