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WO2017136975A1 - Dispositif de séparation de vapeur de peinture ayant des étagères et procédé de séparation de matériau pulvérisé - Google Patents

Dispositif de séparation de vapeur de peinture ayant des étagères et procédé de séparation de matériau pulvérisé Download PDF

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Publication number
WO2017136975A1
WO2017136975A1 PCT/CN2016/080082 CN2016080082W WO2017136975A1 WO 2017136975 A1 WO2017136975 A1 WO 2017136975A1 CN 2016080082 W CN2016080082 W CN 2016080082W WO 2017136975 A1 WO2017136975 A1 WO 2017136975A1
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WO
WIPO (PCT)
Prior art keywords
paint mist
air
separating
paint
overspray
Prior art date
Application number
PCT/CN2016/080082
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English (en)
Chinese (zh)
Inventor
周小参
Original Assignee
周小参
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 周小参 filed Critical 周小参
Publication of WO2017136975A1 publication Critical patent/WO2017136975A1/fr

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    • 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
    • B05B14/43—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • 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
    • 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
    • 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
    • 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 industrial coating, in particular to the field of separation and collection of sprayed overspray, in particular to a shelf type paint mist separation device and a method for separating the sprayed object, which are widely used in automobiles, hardware, home appliances, toys, etc. Painting.
  • the traditional coating exhaust gas separation technology is mainly divided into dry type and wet type.
  • the traditional dry painting system mainly uses a single layer of paint mist filter felt to separate the paint mist, which is easy to cause partial saturation and blockage of the filter material.
  • the ability to capture and accommodate the paint mist is limited, and the paint mist needs to be changed frequently.
  • Filter felt. Frequent replacement of the filter felt requires production stoppage, which not only increases the consumption of filter materials and labor, but also occupies a large amount of production time.
  • the production cost of the enterprise is high and the solid waste is large.
  • the separation effect of the paint on the paint mist is also very limited.
  • the separated air still contains a certain amount of paint mist, which not only can not meet the quality requirements of air circulation use, but also has a large fire safety hazard. Therefore, the traditional dry technology can only be applied in small batch and intermittent spraying operations, and it is difficult to use in industrial production with large batches of continuous production.
  • the traditional wet venturi or wet curtain cabinet technology can achieve continuous separation of paint mist, which can meet the needs of large-scale continuous operation, but this technology will generate a large amount of waste gas, waste water and waste liquid, which requires a lot of fresh consumption. Constant temperature and humidity air, high energy consumption.
  • the air inlet and outlet of the disposable paint mist separation box and the interface of the painting system need to be sealed, and the sealing part needs a certain bonding force.
  • the single-use housing is mainly made of cardboard material with limited strength, which is not conducive to improving the bonding force at the interface.
  • the paint mist separation box using this one-time overall structure requires different types of paint mist separation boxes to cope with overspray of different particle characteristics, such as the patent application published as CN 104981297 A, and the types of paint mist separation boxes are many. Different types of paint mist separation boxes are difficult to match overspray with different particle characteristics. Different temperature and humidity conditions and different spraying parameters will also cause differences in the characteristics of the overspray particles. During the spraying process, the temperature and humidity may fluctuate at any time, the type of paint needs to be replaced, and the spraying parameters sometimes need to be adjusted.
  • the particle characteristics of the spray are always changing, which increases the difficulty of matching the type of paint mist separation box of this one-time overall structure with the overspray, and the ability of the paint mist separation box to capture and accommodate the overspray.
  • the separation effect is difficult to achieve the best.
  • the paint mist separation box of this structure uses a disposable separating material to intercept the adhered spray, and the consumption of the disposable material is large.
  • One of the objects of the present invention is to provide a shelf type paint mist separating apparatus for overcoming the above-mentioned drawbacks of the prior art, comprising a recyclable hard outer casing and a disposable paint mist separating member disposed therein.
  • the paint mist separation device is a split structure, and the outer casing is a hard and durable material, which can be recycled, which reduces the comprehensive use cost.
  • a plurality of different disposable paint mist separation components are arranged from bottom to top, and different paint mist separation components separate overspray of different particle characteristics, and each paint mist separation component can be replaced separately, and can be replaced only to achieve capture.
  • the paint mist separation component that accommodates the limit can not only improve the ability of the paint mist separation component to capture and accommodate the overspray, but also the combined application of the multiple paint mist separation components can improve the separation effect of the paint mist separation device and the paint mist separation device. Universality.
  • a second object of the present invention is to provide a paint mist separation module for overcoming the defects of the prior art described above.
  • the paint mist separation module uses the above-mentioned paint mist separation device as a separation mechanism for separation during spraying. Overspray.
  • the paint mist separation device is installed in the paint mist separation device installation chamber, and the paint mist separation device installation chamber is located outside the air flow guide chamber, and the lacquer separation device installation chamber and the air flow guide chamber are connected by the Venturi passage.
  • the paint mist separation module has convenient maintenance, small occupied space, easy replacement of the paint mist separation device, and good working environment.
  • the third object of the present invention is to provide a dry venturi painting system including the above-mentioned paint mist separation module, which is disposed in the lower part of the painting system, and separates the spraying process, in order to overcome the defects of the prior art described above. Overspray produced in the middle.
  • the painting system has the advantages of simple structure, convenient operation, reliable performance, energy saving and environmental protection.
  • the invention also provides a method for separating overspray, which utilizes the difference of huge physical properties between the overspray and the air, and separates the spray by gravity, centrifugal force and inertial force, and designs by using the method.
  • the paint mist separation device has good separation effect on the paint mist, and has large collection and storage capacity, and the consumption of the primary separation material is low.
  • a shelf type paint mist separating device comprises an outer casing for guiding air flow and a paint mist separating member disposed therein, wherein the outer casing is provided with an air inlet and an air outlet, wherein the outer casing is made of a hard and durable material, It can be recycled; the door is provided with a door, and the outer part of the outer casing is provided with a shelf; the paint mist separation component is a one-time use product, and is arranged on the shelf.
  • the present invention provides a shelf type paint mist separation device, which may further have the feature that the material of the recyclable outer casing is selected from one or more of the following materials: metal material, plastic material, wood material .
  • the present invention provides a shelf type paint mist separating device, which may further have a feature that the air inlet is located at a lower portion of the recyclable hard outer casing, and the air outlet is located at an upper portion of the recyclable hard outer casing, and the paint mist
  • the separating members are arranged on the shelves from bottom to top.
  • the present invention provides a shelf type paint mist separating device, which may also have the feature that the door is disposed on one side of the hard outer casing and covers the entire side surface.
  • the present invention provides a shelf type paint mist separating device, which may also have the feature that the shelf is provided with rolling members.
  • the present invention provides a shelf type paint mist separation device, which may further have the feature that The disposable paint mist separation member is designed as a groove-like structure.
  • the present invention provides a shelf type paint mist separating device, which may further have the feature that the disposable paint mist separating member comprises a hard smooth material as a paint mist separating unit.
  • the present invention provides a shelf type paint mist separation device, which may further have the feature that the paint mist separation unit of the hard smooth material is a curved plate structure.
  • the present invention provides a shelf type paint mist separation device, which may further have the feature that the hard smooth material is selected from one or more of the following materials: paper material, wood material, plastic material.
  • the present invention provides a shelf type paint mist separation device, which may further have the feature that the opening of the curved plate-like paint mist separation unit faces downward or downward.
  • the present invention provides a shelf type paint mist separating device, which may further have the feature that the disposable paint mist separating member comprises a paint mist separating unit of a fiber material.
  • the present invention provides a shelf type paint mist separation device, which may further have the feature that the paint mist separation unit of the fiber material has a corrugated plate shape.
  • the present invention provides a shelf type paint mist separating device, which may further have a feature that the corrugated plate-shaped paint mist separating unit is arranged parallel to the main flow direction of the air.
  • the present invention provides a shelf type paint mist separation device, which may further have the feature that the paint mist separation unit of the fiber material is in the shape of a flat plate, and the paint mist separation unit is arranged perpendicular to the air main flow direction and each paint The mist separation unit covers the flow cross section of the air.
  • a paint mist separation module is used for separating overspray generated during spraying, comprising an air guiding chamber, a paint mist separating device installation room and a paint mist separating device installed therein, characterized in that: paint mist separation The module adopts the paint mist separation device according to any one of the above items as a mechanism for separating the sprayed object, the paint mist separation device is installed in the paint mist separation device installation room; the paint mist separation device installation room is located outside the air flow guide chamber, and the paint The mist separation device installation chamber and the air guiding chamber are connected by a venturi passage.
  • the present invention provides a paint mist separation module, which may further have the feature that the cross-sectional shape of the air flow guiding chamber is T-shaped, and the top of the air guiding chamber passes through the grating and the spray booth, and the upper side is Defined by the side wall panels, the intermediate transverse plane is defined by the intermediate transverse wall panels, the lower lateral sides are defined by the lower vertical wall panels, the bottom is defined by the top surface of the inspection platform, and the air flow area is due to the intermediate transverse plane and the top of the inspection platform There are two sudden reductions in the definition of the face.
  • the present invention provides a paint mist separation module, which may further have the feature that the intermediate lateral surface has an inclination of less than 20 degrees with respect to a horizontal plane, and is located near a center line of the painting system, away from a center line of the painting system. The position is high.
  • the present invention provides a paint mist separation module, which may also have the feature that the top surface of the inspection platform is composed of two faces, the two faces being symmetrical with respect to the center line of the painting system, and the two faces are opposite to the horizontal plane. There is a tilt of less than 20 degrees, and the position near the centerline of the painting system is high, and the position away from the center line of the painting system is low.
  • the present invention provides a paint mist separation module, which may further have the feature that the venturi passage connecting the paint mist separation device installation chamber and the air flow guide chamber is located on both sides of the bottom of the air flow guide chamber, Venturi The inlet of the passage is located on the vertical wall between them, and the venturi passage extends into the interior of the paint mist separation device installation.
  • the present invention provides a paint mist separation module, which may further have a feature that: a lower portion of the venturi passage is defined by a lower flow guiding surface, and a lower flow guiding surface of the venturi passage is located at two sides of the inspection platform. One end is connected to the top surface of the inspection platform, and the other end extends into the installation chamber of the paint mist separation device.
  • the inclination angle of the lower flow guiding surface of the Venturi passage is larger than the inclination angle of the top surface of the inspection platform.
  • the present invention provides a paint mist separation module, which may further have a feature that two sides of the venturi passage are defined by two side flow guiding surfaces, and the two side flow guiding surfaces are parallel to each other and perpendicular to the vertical wall.
  • the spacing of the plates, the two side flow guiding surfaces plus the thickness of the two side flow guiding surface panels is equal to the width of the air inlet of the paint mist separating device.
  • the present invention provides a paint mist separation module, which may further have a feature that an upper portion of the venturi passage is defined by an upper flow guiding surface, and an upper flow guiding surface has an inclination of less than 45 degrees with respect to a lower flow guiding surface.
  • the air ventilation area at the exit point of the Venturi passage is the smallest.
  • the present invention provides a paint mist separation module, which may further have a feature that a height difference between a highest point of the upper flow guiding surface of the venturi passage and a lowest point of the lower flow guiding surface is equal to a paint mist separation The height of the air inlet of the device.
  • the invention provides a dry venturi painting system, characterized in that the paint mist separation module according to any one of the above items is provided, and the paint mist separation module is arranged at a lower part of the painting system to separate the overspray generated during the spraying process. Things.
  • the present invention also provides a method of separating overspray:
  • a method for separating an overspray for separating an overspray generated during the spraying process and carried by the air The air inlet of the paint mist separating device is disposed at a lower portion of the paint mist separating device, and the air outlet of the paint mist separating device is disposed at an upper portion of the paint mist separating device, and the air carrying the overspray is separated by the paint mist separating device.
  • the air inlet is introduced into the paint mist separating device, and the air main flow direction is separated from the bottom through the paint mist separation device, and the disposable paint mist separation unit is disposed in the process, and the clean air is separated from the air outlet of the paint mist separation device. discharge.
  • the method for separating overspray provided by the present invention may further have the feature that the method utilizes the gravity separation overspray of the overspray itself according to the difference in the great physical properties between the overspray and the air. Things.
  • the method for separating overspray provided by the present invention may further have the feature that the overspray is separated by centrifugal force in accordance with a difference in a large physical property between the overspray and the air.
  • the method for separating overspray provided by the present invention may further have the feature that the overspray is separated by inertial force according to the difference in the great physical properties between the overspray and the air.
  • the method for separating overspray provided by the present invention may further have the feature that the air carrying the overspray is sent to the paint mist separating device in an obliquely downward direction by the air inlet of the paint mist separating device. Then gradually turn to move up or side up.
  • the method for separating overspray provided by the present invention may also have the feature that a curved air flow passage exists in the paint mist separating device.
  • the present invention provides a method of separating overspray, which may also have the feature that the curved air flow passage is formed by a cavity between the disposable paint mist separation units.
  • the method for separating overspray provided by the present invention may further have the feature that the disposable paint mist separation unit is in the shape of a corrugated plate and arranged parallel to the air main flow direction.
  • the method for separating overspray provided by the present invention may further have the feature that the paint mist separation unit is a curved plate structure.
  • the method for separating overspray provided by the present invention may further have the feature that the disposable paint mist separation unit of the curved plate structure is opened downward or downward.
  • the method for separating overspray provided by the present invention may further have the feature that the disposable paint mist separating units are respectively connected and fixed by the frame to form the paint mist separating member, and are disposed in the form of the paint mist separating member. In the paint mist separation device.
  • the present invention has the following beneficial effects:
  • the paint mist separation device and the dry venturi painting system provided by the invention perfectly solve the problem of the absorption capacity of the traditional dry paint mist separation technology.
  • the invention greatly reduces the amount of waste gas and waste liquid, and completely does not use water, and can reduce environmental pollution.
  • the temperature and humidity of the air are basically unchanged, and the air circulation can be realized without consuming a large amount of energy to adjust the temperature and humidity state of the air. Can greatly save energy consumption.
  • the outer casing and the inner separating member of the device are designed in the form of a component body, the outer casing is made of a recyclable metal material, the outer casing is provided with a shelf, and the disposable paint mist separating component It is arranged on the shelves from bottom to top.
  • the replacement of the disposable cardboard casing by the recyclable metal casing reduces the consumption of the disposable consumables and the combined use cost, improves the mechanical strength of the casing, and facilitates the sealing of the interface joint.
  • paint mist separation device different types of paint mist separation parts are arranged from bottom to top, and different paint mist separation parts can separate overspray of different particle characteristics, so that overspray of various particle characteristics is separated in different paint mists. Separation of components requires only one paint mist separation device to achieve separation of overspray with different particle characteristics, reducing the type of paint mist separation device, and also improving the effect of paint mist separation.
  • the modular design of the disposable paint mist separation component uses the bezel to connect and fix the paint mist separation unit, and is arranged on the inner shelf of the metal casing. Each separate paint mist separation component can be replaced as needed, so that each paint mist can be made.
  • the separation component reaches its capture and containment limit, which improves the separation capacity of the unit disposable separation material for the overspray and reduces the consumption of the disposable separation material.
  • the rolling parts provided on the shelf enable the paint mist separation parts that reach the collection and storage limit to be easily removed, and the new paint mist separation parts can be easily loaded, which facilitates the replacement of the paint mist separation parts.
  • the air inlet and venturi passages of the elongated paint mist separation device are arranged such that the air venting area is rapidly reduced and the air flowing therethrough is accelerated.
  • the sloping design of the upper and lower flow guiding surfaces of the venturi passage relative to the horizontal plane enables the accelerated air and the overspray carried therein to enter the paint mist separating device in an obliquely downward direction.
  • the direction of the air flowing obliquely downward into the paint mist separation device changes under the influence of the pressure difference, and gradually changes from the oblique downward direction to the upward movement.
  • the overspray of the air is separated by gravity, centrifugal force and inertial force. This process does not require any separation of materials, and a large amount of overspray particles are separated, which provides a good pre-separation effect and reduces subsequent separation.
  • the load of the part is not require any separation of materials, and a large amount of overspray particles are separated, which provides a good pre-
  • the sprayed material is separated by a curved plate-shaped paint mist separating unit of a hard and smooth material having an opening angle of 70 to 110 degrees in two rows.
  • a curved plate-shaped paint mist separating unit of a hard and smooth material having an opening angle of 70 to 110 degrees in two rows.
  • the flow direction of the air undergoes two large-angle transitions, and the over-spray particles in the air are separated by centrifugal force, gravity, and inertial force.
  • the content of overspray in the air entering this layer is still large, the separation load of the paint mist separation unit of this layer is large, and the paint mist separation unit of the hard and smooth material is favorable for the paint to flow on the surface thereof and is separated on the paint mist separation unit.
  • the service life of the mist separation unit reduces the consumption of disposable consumables.
  • the paint mist separating member adopts a corrugated plate-like paint mist separating unit of fiber material, and the paint mist separating unit is arranged parallel to the main flow direction of the air, and the narrowing formed therebetween is formed.
  • the curved air flow passage enables the overspray to carry the load to all parts of the paint mist separation unit as the air reaches the depth of the paint mist separation member. After the lacquer separation unit is clogged, the air flows through the curved air flow passage, and the air flow direction also undergoes multiple large-angle transitions.
  • the over-spray particles are separated from the air flow by the centrifugal force and adhere to On the paint mist separation unit, the surface of the paint mist separation unit is also adhered with a large amount of paint until the air flow passage is blocked.
  • This design can greatly increase the amount of separation of the spray material by the unit disposable material and reduce the disposable consumables. Consumption.
  • the paint mist separation member of the uppermost layer is a flat-shaped paint mist separation unit of a fiber material, and the paint mist separation unit is a whole material and covers a flow cross section of the air.
  • the paint mist separation component can fully capture and filter the overspray particles which have not been separated before, and the separation effect of the entire paint mist separation device is good.
  • the air inlet is arranged at the lower part of the paint mist separating device, and the air outlet is arranged at the upper part of the paint mist separating device, so that the area between the two rows of paint mist separating devices can be an air guiding region, which can effectively reduce the height of the dedicated air guiding region. Reduce the height of the entire painting system and reduce the investment in equipment and construction.
  • the main direction of the air carrying the overspray passes through the paint mist separation device from bottom to top.
  • the overspray is much denser than the air.
  • the overspray overcomes its own gravity and is much more difficult than air. Some of the particles are large and heavy.
  • the overspray particles themselves can settle under the action of gravity to the bottom of the grooved paint mist separation component, and the overspray particles which can overcome the increase of their own gravity are also easily disposed in the paint mist of the paint mist separation device.
  • the separation unit adheres to the capture, reduces the consumption of the disposable separation material, and improves the separation effect of the paint mist separation device.
  • the horizontal plane in the middle of the air guiding chamber and the top surface of the inspection platform are designed to be 1 to 20 degrees with respect to the horizontal plane. Tilting, this tilting design can guide part of the paint liquid falling on these surfaces into the grooved paint mist separation part of the paint mist separation device, reducing the cleaning and maintenance workload of the air guiding inner surface, inclined less than 20 degrees The angle is also convenient for maintenance personnel to walk on.
  • the replaced spray mist separation member that has reached the collection and containment limit has a high overspray content, and the overspray is uniformly distributed throughout the paint mist separation member, and the air permeability is excellent.
  • the main components of the overspray are the resin and the solvent, and the combustion value is high, and most of the material of the paint mist separation member itself is also a combustible substance. Therefore, the replaced paint mist separation parts with good ventilation and high combustion value can be used as fuel and turned into waste.
  • Figure 1 is a perspective view showing the outer shape of a paint mist separating device
  • Figure 2 is a schematic perspective view showing the outer casing of the paint mist separating device for opening the door;
  • Figure 3 is a partially enlarged perspective view of the portion I of Figure 2;
  • Figure 4 is a perspective view of the paint mist separating device that opens the door and the paint mist separating member has been installed in position;
  • Figure 5 is a side perspective view of the paint mist separating device
  • Figure 6 is a perspective view of the paint mist separating device partially or completely drawn out of the paint mist separating member
  • Figure 7 is a perspective view showing the structure of the groove-shaped paint mist separating member
  • FIG. 8 is a schematic perspective view of a paint mist separation member which is a smooth hard curved plate as a paint mist separation unit;
  • Figure 9 is a perspective view showing the arrangement of the paint mist separating unit in the paint mist separating member of Figure 8.
  • Figure 10 is a perspective view showing the structure of a paint mist separation unit of a hard smooth curved plate
  • Figure 11 is a perspective view of a paint mist separating member of a corrugated plate-like paint mist separating unit in which a fibrous material is disposed;
  • Figure 12 is a schematic view showing the arrangement of the paint mist separating unit in the paint mist separating member of Figure 11;
  • Figure 13 is a perspective view showing the structure of a corrugated plate-like paint mist separation unit of a fiber material
  • Figure 14 is a perspective view of a paint mist separating member of a flat-shaped paint mist separating unit in which a fibrous material is disposed;
  • Figure 15 is a perspective view showing the three-dimensional structure of the painting system in which the paint mist separating device is not installed;
  • Figure 16 is a cross-sectional view of the painting system in which the paint mist separation device has been installed and a schematic diagram of air flow;
  • Figure 17 is a perspective view showing the three-dimensional structure of the painting system in which the paint mist separating device has been installed;
  • FIG. 18 is a schematic perspective view of a paint mist separation module
  • Figure 19 is a perspective view showing the structure of the air guiding chamber
  • Figure 20 is a cross-sectional view of the venturi passage
  • Figure 21 is a schematic perspective view of a venturi passage
  • Figure 22 is a top perspective view of the painting system in which the paint mist separation device has been installed
  • Figure 23 is a side perspective view of the painting system in which the paint mist separating device has been installed
  • Figure 24 is a process flow diagram of a typical painting system
  • this painting system is a symmetrical structure, and some symmetrical components are only marked on one side due to the limitation of the labeling space.
  • the air flowing through the spray booth will carry paint particles that are not attached to the surface of the object to be coated during the painting process. This part of the paint particles is defined as "overspray".
  • Paint granules in this patent contain both solid and liquid, especially liquid, small paint lacquer drops, most of which have particle sizes between 10 microns and 100 microns.
  • the present embodiment provides a paint mist separation device 200 having an outer shape such as a box structure, including a recyclable hard outer casing 201, an air inlet 202, an air outlet 203, a door 204, and a hinge 205. a latch 206, a top grill 208, a shelf 260, and paint mist separating members 210, 220, 230, 240 disposed above the shelf, wherein the air inlet 202 is located at a lower portion of the outer casing side, and the air outlet 203 is located at the outer casing top.
  • an outer shape such as a box structure, including a recyclable hard outer casing 201, an air inlet 202, an air outlet 203, a door 204, and a hinge 205.
  • a latch 206 a top grill 208, a shelf 260, and paint mist separating members 210, 220, 230, 240 disposed above the shelf, wherein the air inlet 202 is located at a lower portion of the outer casing side
  • the door 204 of the paint mist separating device is located on one side of the outer casing 201 and covers the entire side, and the door 204 is also an integral part of the outer casing 201.
  • One side of the door is connected to the outer casing 201 by a hinge 205, and the other side is provided with a latch 206 for clamping and fixing the door.
  • the inner wall of the outer casing 201 of the paint mist separating device is provided with a shelf 260 for supporting the paint mist separating member, and the layer frame is provided with a rolling member 261, and the rolling member functions to transport the paint mist separating members 210, 220, 230, 240 for convenience.
  • the paint mist separation member that has reached the trapping accommodation limit is taken out, and a new paint mist separation member is loaded.
  • Fig. 3 is an enlarged view of a portion I of Fig. 2, showing the structure of the shelf 260 clearly.
  • the top grill 208 is disposed at the top of the paint mist separating device, that is, at the air outlet 203, for fixing the paint mist separating member disposed thereunder.
  • the material of the grid can be either a plastic material or a metal material.
  • the bottom of the outer casing 201 of the paint mist separating device is provided with four rollers 207 for moving the entire paint mist separating device 200, facilitating the replacement of the paint mist separating member and the cleaning and maintenance of the outer casing.
  • the outer casing 201, the shelf 260, the roller 207, the hinge 205, the latch 206 and the top grill 208 of the paint mist separating device are all made of high-strength and durable materials, and can be recycled.
  • the materials can be made of metal materials, plastic materials and wood. One or more of the materials are preferably metal materials.
  • the inner wall of the outer casing of the paint mist separating device is provided with four layers of shelves 260, the paint mist separating member is disposed on the shelf 260, and four paint mists are separated from the bottom to the top in the paint mist separating device.
  • any single paint mist separating member can be taken out, and each paint mist separating member is independent of each other and can be replaced individually, as shown in FIG.
  • the rolling member 261 provided on the shelf 260 makes replacement of the paint mist separation member easier and lighter.
  • the paint mist separating member 210 installed at the lowermost portion of the paint mist separating device has a groove-like structure, and the height of one side surface of the groove-shaped paint mist separating member 210 is lower than that of the other three side faces, as shown in FIG.
  • the grooved paint mist separation parts are made of hard and smooth materials, and one or more of the following materials can be used, such as metal materials, solvent-resistant plastic materials, wood materials, and solvent-resistant cardboard materials. Consider its mechanical strength and cost.
  • the paint mist separating member 220 mounted on the second layer from the bottom to the top of the paint mist separating device comprises two rows of paint mist separating units 222, and the paint mist separating unit is connected and fixed by the frame 221, as shown in FIG.
  • the distance between the paint mist separation units in the same row is the same, the opening direction of the upper row of separation units is at an angle of 70 to 110 degrees with the opening direction of the next row of separation units, and the paint drainage of the paint discharge unit of the previous row is separated.
  • the gap between the next row of paint mist separation units As shown in Figure 9.
  • Each of the paint mist separation units 222 has a shape as shown in FIG.
  • the unit is made of a hard, smooth material, and a cardboard material, a plastic material, a wood material, preferably a cheap cardboard material can be used.
  • the paint mist separating member 230 installed in the third layer from the bottom to the top of the paint mist separating device comprises nine paint mist separating units 232, and the paint mist separating unit is connected and fixed by the frame 231 as shown in FIG.
  • the paint mist separation unit is a corrugated plate structure having 11 bends, and the bending angle of the bent surface gradually increases from the bottom to the top.
  • Nine paint mist separation units of the same size and shape are arranged parallel to the main flow direction of the air, parallel and evenly distributed with each other, leaving equal gaps therebetween.
  • the gap between two adjacent paint mist separation units forms an air flow passage with 11 bends, and the angle between the two different paint mist separation units is gradually increased due to the angle at which the paint mist separation unit is bent along the main flow direction of the air.
  • the width of the bent air flow passage formed by the gap therebetween is also gradually narrowed in the air main flow direction as shown in FIGS. 5 and 12.
  • the frame is made of hard and smooth material, and can be made of cardboard material, plastic material or wood material; the paint mist separation unit is made of fiber material, and glass fiber material or chemical fiber material can be used.
  • the paint mist separating member 240 installed at the uppermost portion of the paint mist separating device includes a one-piece paint mist separating unit 242, and the paint mist separating unit is connected and fixed by a frame 241 as shown in FIG.
  • the paint mist separation unit has a flat structure, and each paint mist separation unit is disposed perpendicular to the main flow direction of the air and covers a flow cross section of the air.
  • the frame is made of hard and smooth material, and can be made of cardboard material, plastic material or wood material; the paint mist separation unit is made of fiber material, and glass fiber material or chemical fiber material can be used.
  • the particle characteristics of the atomized overspray have a large difference, especially the particle characteristics of the overspray.
  • the small particle size paint particles are easily changed in direction of movement along the surface of the object to be coated, so that the surface of the object to be coated cannot be reached to form an overspray; and the large particle paint Particles, due to their large mass, do not easily deviate from their orbital motion and tend to adhere to the object to be coated.
  • the small particle size paint particles are light in weight and easily reach the surface of the object under the action of electric field force, while the large particle size paint particles are easily subjected to centrifugal force. It is scooped out, and the shaping air and electric field force are not enough to overcome the centrifugal force of the large-sized paint particles, and finally these large-sized paint particles form an overspray due to the inability to reach the surface of the object to be coated.
  • the overspray generated by the spray of the air atomizing device is mainly small and light paint particles
  • the overspray generated by the electrostatic cup spraying is mainly large and heavy paint particles.
  • the characteristics of the sprayed paint particles are also different.
  • Contain Paints with aluminum powder and pearl powder will produce many paint particles with small particle size and high density during the atomization process, and the paint particles contain less solvent, easy to dry and lose viscosity; varnish and plain paint
  • the main component is a resin, and most of the sprayed paint particles have a large particle size, the paint particles contain more solvent and are not easily volatilized, and the paint particles in the overspray are still liquid and have a large viscosity.
  • the present invention provides a shelf type paint mist separating device 200, which is provided with several different kinds of paint mist separating members 210, 220, 230, 240 from bottom to top in a paint mist separating device, and can be replaced with any one of them individually.
  • the paint mist separation member that has reached its collection and storage limit can well cope with overspray which has different particle characteristics under various working conditions.
  • the air enters the paint mist separating device at a high speed in a diagonally downward direction, and the air gradually changes direction in the groove-like paint mist separating member 210, and gradually moves from the oblique downward direction to the vertical upward movement.
  • the overspray particles in the air are separated by their own gravity, inertial force and centrifugal force. Especially the large and heavy particle size paint particles are more easily separated in the process and act as pre-separation.
  • the paint mist separation member on the groove-shaped paint mist separating member which is a smooth hard curved plate as a paint mist separation unit is mainly used to separate over-spray particles having a large particle size, and can withstand a large separation load.
  • the air flowing through the spray material undergoes two major changes in the flow direction of the air, and the overspray in the air is separated from the air flow by the centrifugal force and the inertial force.
  • Adhered to the surface of the paint mist separation unit after the paint adhered to the paint mist separation unit reaches a certain thickness, it is collected by gravity to the bottom of the paint mist separation unit and follows the zigzag paint drain head.
  • the smooth hard material helps the paint to flow on it, and can quickly guide the accumulated paint on it.
  • the content of the overspray of the air pre-separated by the trough-like paint mist separation component is still large, and the load of the separation of the paint mist separation unit is large, and the rapid accumulation of the paint accumulated thereon is advantageous for improving the service life thereof.
  • the paint mist separation component of the corrugated plate-like paint mist separation unit provided with the fiber material mainly separates the small-sized spray particles, and since most of the spray particles are sticky, the air carrying the spray particles is During the process of separating the components by the paint mist, a large amount of intricately distributed fibers in the paint mist separation unit are adhered and captured. A large number of intricately distributed fibers can adhere to capture a large amount of overspray particles, which can achieve fine separation The effect is to separate most of the overspray particles from which the previous layers were not separated.
  • the paint mist separation member of the flat-shaped paint mist separation unit provided with the fiber material at the uppermost portion functions mainly for comprehensive filtration, and filters the small and light overspray particles which are not separated from the above layers, and these overspray Most of the particles have lost their viscosity and have not been separated by previous separation processes.
  • the structure and working process of the dry venturi painting system are as follows:
  • the dry venturi painting system is generally indicated by 100, and mainly includes the following parts: inlet duct 10, dynamic pressure chamber 11, static pressure chamber 12, spray booth 20, painting robot 24, and conveying system. 22.
  • the object 21 to be sprayed is transported from the upstream of the painting system by the transport system 22 in the longitudinal direction 95 to the painting system 100, and the object 21 to be sprayed is applied in the painting system 100.
  • the constant temperature and humidity air from the air conditioning device enters the dynamic pressure chamber 11 of the painting system from the air inlet pipe 10, and the dynamic pressure chamber 11 functions as a current sharing; the air that flows through the dynamic pressure chamber 11 passes through the bag filter. 13 is filtered and enters the static pressure chamber 12; the air having a uniform flow velocity from the static pressure chamber is filtered by the top filter cotton 15 of the spray booth and then flows into the spray booth 20.
  • the top of the spray booth 20 is defined by a top filter cotton 15, the sides of which are defined by a wall panel 14, and the lower portion of the spray booth is provided with a steel structure that supports the conveyor system 22, the painting robot 24 and the grid 23.
  • the delivery system 22 is capable of transporting the object 21 from the entrance of the spray booth to a desired location; the spray robot 24 is capable of spraying the object to be sprayed 21; the grill 23 provides access to both the personnel and the spray booth 20 and lower portion.
  • the air guiding chambers 30 are in communication.
  • the air coming from the static and dynamic pressure chambers (11, 12) carries the overspray generated during the painting process while passing through the spray booth 20.
  • a paint mist separation module 50 is disposed under the spray booth, and the paint mist separation module is as shown in FIG.
  • the paint mist separation module 50 includes an air flow guiding chamber 30, a paint mist separating device mounting chamber 51, and a paint mist separating device 200 installed therein.
  • the main duct 70 is also shown in the figures.
  • the paint mist separation module 50 is bounded at both ends of the longitudinal direction 95 by a wall panel 93 which also provides a limit for both ends of the air flow chamber longitudinal direction 95. Siding 93
  • An air guiding chamber door 92 is disposed on the air guiding chamber door 92 for facilitating maintenance personnel to enter and exit the inspection platform 35.
  • the air carrying the overspray enters the air guiding chamber 30 first through the holes of the grille 23.
  • the air guiding chamber 30 is open upwardly, connected to the spray booth 20 via a grill 23, the upper side 36 is bounded by a wall 31, the intermediate transverse surface 32 is bounded by a wall 62, and the lower side 33 is bounded by a wall 63, bottom
  • the lateral plane is limited by the top surface 34 of the inspection platform 35, and the entire air guiding chamber 30 has a T-shaped cross section, and FIG. 19 shows a perspective structural view of the air guiding chamber 30.
  • the air carrying the paint mist from the spray booth 20 enters the air guide chamber 30 through the hole of the grill 23, and the air is first restricted by the intermediate cross surface 32 during the advancement, and the air flow area is reduced. About half of the air enters the area between the lower two sides 33, and the air flow rate is also increased. As the air continues to flow downward, it is again limited by the top surface 34 of the patrol platform 35, and finally guided by the lower venturi channel guide 84 into the venturi passage 80.
  • the inner surface of the air guiding chamber 30 needs to be provided with an easily replaceable covering.
  • the cover may be a plastic film or a foil paper, and the cover is adhered to the inner surface of the air flow guiding chamber with an adhesive or petroleum jelly.
  • the intermediate transverse surface 32 in the air guiding chamber 30 has an inclination of 1 to 20 degrees with respect to the horizontal plane, and is located near the center line 99 of the painting system, and is located away from the center line 99 of the painting system, which is convenient for maintenance.
  • the maintenance work is carried out by the personnel, and the flowable paint falling thereon can be flowed along the inclined surface to the lower flow guiding surface 84 of the venturi passage, and then flows into the groove of the bottom of the paint mist separating device installed therein.
  • the paint mist separation member 210 is inside.
  • the top surface 34 of the bottom inspection platform 35 also has an inclination of less than 20 degrees.
  • the top surface of the inspection platform is divided into two parts (34a, 34b), and the two parts (34a, 34b) are symmetrically distributed on both sides of the center line 99, and
  • the relative horizontal plane has a slope of less than 20 degrees, and is located near the center line 99 of the painting system, and is far from the center line 99 of the painting system.
  • the inclination of the top surface 34 of the inspection platform is also to allow the flowable paint falling on its surface to flow to both sides, and finally to flow into the grooved paint mist of the paint mist separation device installed in position along the lower flow guiding surface 84 on both sides of the inspection platform.
  • the separation member 210 has a tilt of less than 20 degrees at the same time, which is convenient for maintenance personnel to walk on.
  • These inclined designs in the air guiding chamber 30 are capable of removing a portion of the flowable paint into the trough-like paint mist separating member 210 at the bottom of the paint mist separating device, reducing the amount of paint accumulated on the inner surface of the air guiding chamber 30, Extend the frequency of replacement of air-guided indoor coverings and reduce the workload of maintenance personnel.
  • the venturi passage 80 is surrounded by four flow guiding surfaces, the lower portion of the venturi passage 80 is limited by the lower flow guiding surface 84, and the upper portion is bounded by the upper flow guiding surface 81, and the side guiding surface 82 and the side guiding surface are provided on both sides. 83 limits, Figure 20 illustrates a cross-sectional view of the Venturi passage, and Figure 21 illustrates a perspective view of the Venturi passage.
  • the lower flow guiding surface 84 of the venturi passage is located on both sides of the patrol platform 35, one end is connected to the patrol platform top surface 34, and the other end extends over the vertical wall panel 63 into the paint mist separating device installation chamber 51, and the extended projection depth is greater than 5 cm and less than 20 cm are preferred.
  • the lower flow guiding surface 84 has a larger inclination angle than the top surface 34 of the inspection platform, and the inclination angle with respect to the horizontal plane is preferably 30 to 60 degrees.
  • the flat wall plate 85 functions to support the lower flow guiding surface 84 of the venturi passage, one end of the plane is connected to the inspection platform 35, the other end is connected to the end of the lower flow guiding surface 84, and the lower surface of the flat wall panel 85 and the vertical wall panel 63 Also connected.
  • One end of the upper flow guiding surface 81 of the venturi passage 80 is connected to the vertical wall plate 63, and the other end extends into the interior of the paint mist separating device mounting chamber 51, and the length of the extending portion is preferably 10 cm to 30 cm.
  • the upper flow guiding surface 81 has an inclination of less than 45 degrees with respect to the lower flow guiding surface 84, and the inlet position 88 of the venturi passage has a large ventilation area, and the ventilation area along the outlet of the venturi passage gradually decreases, at the exit of the Venturi passage.
  • the venting area at location 86 reaches a minimum, and the venting area rapidly expands after exiting the exit position 86 of the venturi passage.
  • the air outlet passage of the above structure together with the front and rear areas thereof, has a venturi structure, the front and rear ventilation areas are large, and the ventilation area at the air outlet passage is rapidly reduced, and the air passing through the air outlet passage generates a Venturi effect, which is used in this patent.
  • the outlet channel is defined as the Venturi channel.
  • Both sides of the venturi passage 80 are defined by a side flow guiding surface 82 and a side flow guiding surface 83.
  • the upper side of the side flow guiding surface 82 and the side flow guiding surface 83 are connected to the upper flow guiding surface 81, and the lower portion is connected to the lower flow guiding surface 84.
  • One side is connected to the vertical wall panel 63 and perpendicular to the vertical wall panel 63.
  • the angle of inclination of the upper flow guiding surface 81 and the lower flow guiding surface 84 of the venturi passage 80 is such that the outlet of the venturi passage 80 is directed toward the bottom of the paint mist separating device mounted in position.
  • the air carrying the overspray from the air guiding chamber 30 into the venturi passage 80 is rapidly reduced due to the ventilating area, and the air is further accelerated.
  • the venting area is also gradually decreasing.
  • the ventilation area reaches a minimum, the wind speed reaches a maximum value, and the air carrying the overspray is obliquely downward.
  • the direction is entered at high speed into the trough-like paint mist separating member 210 at the bottom of the paint mist separation device installed in place.
  • the difference in height between the highest point of the upper flow guiding surface 81 of the Venturi passage 80 and the lowest point of the lower flow guiding surface 84 The height of the air inlet 202 of the paint mist separation device is the same; the distance between the side flow surface 82 and the side flow surface 83 on both sides of the venturi passage 80 plus the thickness of the two guide surface panels themselves and the paint mist
  • the air inlets 202 of the separating device 200 have the same width. This size is designed to match the air inlet 202 of the paint mist separation device in place with the venturi passage 80, preventing internal untreated air from leaking outward or external air flowing into the interior untreated air.
  • a sealing device 87 is disposed on the vertical wall plate 63 on the side of the installation chamber of the paint mist separating device at a position around the venturi passage 80.
  • the sealing device also functions to prevent internal untreated air from flowing out or external air flowing into the untreated portion. in the air.
  • This sealing device can use a plastic sealing strip.
  • the upper surface of the paint mist separating device mounting chamber 51 is defined by a transverse wall plate 62 defined by a vertical wall plate 63, and the lacquer separating device mounting chamber 51 and the air guiding chamber 30 are communicated by a venturi passage 80.
  • a rail 40 is disposed on the bottom surface of the installation chamber of the paint mist separating device, and the rail serves to transport the paint mist separating device 200.
  • the paint mist separation device 200 rolls along the track 40, and the paint mist separation device 200 can be removed or moved into the painting system 100.
  • the roller 207 is locked, and the rail 40 also functions to fix the paint mist separating device 200.
  • each installation position of the paint mist separating device 200 there is a dividing duct 71.
  • the shape of the cross section of the vertical portion of the dividing duct 71 is the same as the cross-sectional shape of the top of the paint mist separating device, and one end of the air duct 71 is provided. It is connected to the top of the paint mist separation device 200 installed in place, and the other end is connected to the main air duct 70.
  • the inlet of the dividing duct 71 is provided with a card slot 52 for guiding the fixing paint mist separating device and a clamping device 53 for clamping and fixing the paint mist separating device.
  • the function of the card slot 52 is to guide the paint mist separating device 200 into the mounting position and
  • the paint drying system 100 defines a paint mist separating device in the longitudinal direction 95.
  • the clamping device 53 functions to clamp and fix the paint mist separating device in the lateral direction 96 of the painting system 100, and to guide and define the clamping device 53 through the card slot 52. Clamping and fixing enables the paint mist separation device 200 to be accurately fixed to a position to be mounted.
  • the high-speed air coming out through the Venturi Channel 80 and the overspray it carries will continue to move forward in the original direction. Since the opening of the venturi passage 80 faces the bottom 211 of the groove-like paint mist separating member of the paint mist separating device mounted in position, the venturi passage 80 emerges from the venturi passage and is in the original direction toward the groove-like paint mist separating member. The bottom moving air and the overspray particles carried by it partially hit the bottom 211 of the grooved paint mist separating member. During the impact, the air is rebounded and moved upward by the pressure difference, and the overspray in the air collides and adheres to the bottom 211 of the grooved paint mist separating member.
  • the density of overspray is about 1000 times that of air.
  • the gravity per unit volume of overspray is about 1000 times that of air molecules; when other conditions are the same, the centrifugal force of the overspray is about 1000 times that of air molecules.
  • the inertial force of the overspray is about 1000 times that of the air molecules.
  • the spray particles are separated by the action of centrifugal force, inertial force and gravity according to the difference in physical properties between the overspray and the air. This process can separate a large amount of overspray particles, which has a good pre-separation effect, reduces the burden of the subsequent paint mist separation unit, and reduces the consumption of the separation material.
  • the particles that can be carried by the air as the ascending spray particles continue to move upward with the pressure of the air, and enter the subsequent paint mist separation member 220, 230, 240.
  • the paint mist separation member 220 is firstly passed through a hard smooth curved plate as a paint mist separation unit, and the two rows of openings in the paint mist separation member are 70 to 110 degrees.
  • a curved, plate-shaped paint mist separation unit of a hard, smooth material During the passage of the two rows of paint mist separation units, the air is blocked by the paint mist separation unit 222 directly in front of the air advancing direction, and the flow direction of the air occurs twice at a large angle, and some air and the overspray carried therein The object hits the paint mist separation unit 222.
  • the air is rebounded and changes direction by the pressure difference, and the overspray in the air collides and adheres to the paint mist separation unit 222; Part of the flow direction of the air that failed to reach the paint mist separation unit also undergoes a large angle change under the action of the pressure difference. During the large angle transition in the flow direction of the air, the overspray particles in the air will be in the centrifugal force. The air stream that is scooped out is applied to and adhered to the paint mist separation unit 222.
  • the paint-fog separation unit 222 of the hard and smooth material facilitates the flow of the paint accumulated thereon, and the accumulated paint thereon is collected by gravity to the bottom of the paint mist separation unit, and finally at the bottom of the jagged paint drain head.
  • the groove-like paint mist separating member 210 that has been dropped under it is guided.
  • the air carrying the overspray particles passes through the paint mist separation component with the hard smooth curved plate as the separation unit After the separation of 220, the flow continues upward by the pressure difference, and enters the paint mist separation member 230 of the corrugated plate-like paint mist separation unit provided with the fibrous material.
  • the paint mist separating unit 232 has good gas permeability, and the air and the overspray carried by the air can enter both the interior of the paint mist separating unit 232 and the paint mist separating unit. The gap between the two enters the depth of the paint mist separation member. During the passage of the air and the overspray carried by it through the paint mist separation unit, the overspray particles in the air are collided by the fibers in the paint mist separation unit, and the air continues to flow forward.
  • the paint mist separation unit 232 As the use time is extended, some or all of the paint mist separation unit 232 is adhered to a large amount of paint, and the gas permeability of the paint mist separation unit is deteriorated until it is clogged. In this process, the paint mist separation method of the paint mist separation member is also gradually changed, and the separated spray is gradually switched from the adhered form to the separation of the spray by the centrifugal force and the gravity.
  • the air carrying the paint mist cannot pass through the paint mist separation unit, and can only move forward along the air flow passage that is bent several times between the separation units 232, and the flow direction of the air also occurs. Many times a big angle of change.
  • part of the air and the overspray carried by it will hit a bending surface of the paint mist separation unit directly in front of the advancing direction.
  • the air is When it rebounds, the paint mist in the air will hit and adhere to the paint mist separation unit 232.
  • Part of the air that does not reach the windward surface of the paint mist separation unit will change at a large angle under the pressure difference.
  • the overspray in the air is The air flow is extracted by the centrifugal force and adhered to the paint mist separation unit 232.
  • the bent surface of the paint mist separating unit 232 gradually becomes larger at an angle of bending in the air main flow direction, and the width of the curved air flow passage formed by the gap between the paint mist separating units 232 is gradually narrowed in the main flow direction of the air. .
  • the gradually increasing turning angle and the gradually narrowing air circulation path can gradually increase the air flow rate, and the turning radius of the air is gradually reduced, and the centrifugal force of the overspray carried by the air is gradually increased, and the small and light overspray particles are gradually increased. It can also be separated at the rear portion of the paint mist separating member 230.
  • the different forms of the bending angle of the paint mist separating unit 232 enable the overspray particles having different particle sizes to be adhered and captured at various portions of the paint mist separating member 230, so that the entire paint mist separating member 230 forms a three-dimensional paint mist.
  • the separation space greatly improves the separation effect of the paint mist separation component and the ability to capture and accommodate the paint mist.
  • the air is relatively clean.
  • the relatively clean air is finally filtered by the paint mist separation unit 240 to separate the individual paints that have not been separated from the above sections.
  • the granule, paint mist separating member 240 functions as a full filter, at which time most of the overspray particles have lost their viscosity.
  • the density of the overspray particles is about 1000 times the density of the air, and the gravity of the overspray particles is much greater than its buoyancy in the air.
  • the overspray particles are mainly subjected to the friction of the air and the gravity of the air in the air, and the air carries the upward movement of the overspray particles relative to the air during the ascending process of the overspray particles.
  • the relative movement speeds of the overspray particles and air of different particle sizes are different, and the overspray particles of different movement speeds collide with each other, and the small particle size paint particles are aggregated into the large particle size paint particles.
  • the large-grained paint particles have a large self-weight, and can themselves sink against the friction of the air, or settle to the groove-like paint mist separation member, or adhere to the paint mist separation unit. This method of separating the spray by gravity and centrifugal force can greatly improve the separation effect and reduce the consumption of disposable consumables.
  • the lower trough paint mist separating member 210 collects a part of the paint during the pre-separation process; the upper paint mist separating members 220, 230 also drop a part of the paint to the trough paint mist separating member 210, and the paint mist separating member 220 will drip. More paint is applied to the trough paint mist separating member 210; the air guiding chamber 30 also conducts a portion of the paint to the trough paint mist separating member 210.
  • the trough paint mist separation component 210 is capable of collecting a wide variety of paints with high efficiency and utilization. When the trough-like paint mist separation part is full of paint, it is necessary to replace the groove-like paint mist separation part that collects the paint with a new groove-shaped paint mist separation part.
  • Each of the paint mist separating members 210, 220, 230, 240 can be replaced online or offline. If several paint mist separation components in the paint mist separation device need to be replaced at the same time, the paint mist separation device 200 can be withdrawn from the painting system 100, and the paint mist separation device 200 can be transferred to the waste stack by the roller 207 at the bottom of the paint mist separation device.
  • the state of the paint mist separation member in the paint mist separation device can be monitored either manually or by measuring the pressure difference between the inlet and outlet of the paint mist separation member.
  • the purified air is finally discharged by the air outlet 203 of the paint mist separating device, enters the dividing duct 71 and continues to move upward, and then the direction of the duct gradually shifts to the horizontal movement and merges into the main duct 70.
  • the exhaust main duct is connected to a duct and a fan which are not shown later, and the air is finally sent to the air conditioner for recycling.
  • the function of the fan is to provide a pressure difference to the air.
  • the air will flow under the pressure difference.
  • the power of the air in the whole system is provided by the fan.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

L'invention concerne un dispositif de séparation de vapeur de peinture ayant des étagères, et un système de peinture par pulvérisation sèche Venturi l'appliquant. Le dispositif de séparation de vapeur de peinture ayant les étagères comporte une structure séparable, et comprend un boîtier recyclable (201) constitué d'un matériau dur et durable. Le boîtier (201) comprend des étagères (260), et plusieurs types d'éléments de séparation de vapeur de pulvérisation jetables (210, 220, 230, 240) disposés sur ce dernier de bas en haut. Une porte (204) est disposée au niveau du boîtier et utilisée pour remplacer les éléments de séparation de vapeur de pulvérisation jetables (210, 220, 230, 240). Une entrée d'air (202) est prévue au niveau d'une partie inférieure du dispositif de séparation de vapeur de peinture. Une sortie d'air (203) est prévue au niveau d'une partie supérieure du dispositif de séparation de vapeur de peinture. L'air et les matériaux pulvérisés dans ce dernier entrent dans le dispositif de séparation de vapeur de pulvérisation par l'intermédiaire d'un passage Venturi (80) d'un système de peinture par pulvérisation Venturi et le long d'une direction de descente, puis se déplacent vers le haut. Pendant un processus dans lequel le flux d'air principal se déplace de bas en haut et passe dans le dispositif de séparation de vapeur de peinture, les matériaux pulvérisés sont séparés par les éléments de séparation de vapeur de pulvérisation (210, 220, 230, 240) disposés dans le dispositif de séparation de vapeur de peinture. Par comparaison avec l'état de la technique, le mode de réalisation a un effet de séparation de vapeur de pulvérisation préférable et consomme moins de matériaux de séparation jetables.
PCT/CN2016/080082 2016-02-12 2016-04-22 Dispositif de séparation de vapeur de peinture ayant des étagères et procédé de séparation de matériau pulvérisé WO2017136975A1 (fr)

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CN201610083292.9 2016-02-12
CN201610083292.9A CN105709968B (zh) 2016-02-12 2016-02-12 一种层架式漆雾分离装置及分离过喷物的方法

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CN109433482A (zh) * 2018-11-13 2019-03-08 盐城项远环保设备有限公司 一种喷漆房箱式漆雾过滤设备
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