WO2022136444A1 - Module filtrant et utilisation d'un module filtrant pour la séparation de résidus de vernis et/ou de peinture, en particulier d'un excès de pulvérisation, dans une cabine de peinture - Google Patents

Module filtrant et utilisation d'un module filtrant pour la séparation de résidus de vernis et/ou de peinture, en particulier d'un excès de pulvérisation, dans une cabine de peinture Download PDF

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Publication number
WO2022136444A1
WO2022136444A1 PCT/EP2021/087107 EP2021087107W WO2022136444A1 WO 2022136444 A1 WO2022136444 A1 WO 2022136444A1 EP 2021087107 W EP2021087107 W EP 2021087107W WO 2022136444 A1 WO2022136444 A1 WO 2022136444A1
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WO
WIPO (PCT)
Prior art keywords
filter
filter module
paint
module
plates
Prior art date
Application number
PCT/EP2021/087107
Other languages
German (de)
English (en)
Inventor
Joachim VOGEL
Mathias Manfred MOLL
Original Assignee
Ipcs Gmbh Innovative Paint & Conveyor Systems
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 Ipcs Gmbh Innovative Paint & Conveyor Systems filed Critical Ipcs Gmbh Innovative Paint & Conveyor Systems
Priority to EP21843955.2A priority Critical patent/EP4267313A1/fr
Publication of WO2022136444A1 publication Critical patent/WO2022136444A1/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
    • B05B14/43—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material

Definitions

  • the present invention relates to a filter module and its use for separating paint and/or paint residues, as well as a paint booth and a method for regenerating the filter module, particularly in the aforementioned paint booth.
  • WO 2009/030308 A1 discloses the basic structure of a suitable paint shop, with the filter block consisting of a loose bed, which has the advantage of a large surface for the separation. However, the fill must be professionally processed and disposed of, which involves additional disposal costs.
  • the technology is known, for example, from EP 1 492 609 B1, in which several cardboard walls with differently shaped passage openings are arranged one behind the other in a stacking direction in a filter module.
  • US 2014 130674 A discloses a filter module based on a metallic or sintered, porous carrier material, eg a grid, and powdered lime precoating material coated thereon. This filter aid material is knocked off the carrier before its pyrolysis treatment and then undergoes a pyrolysis treatment. The carrier then has to be coated again, which means a considerable amount of additional work.
  • US Pat. No. 6,162,270 A has several design variants of a filter module for separating overspray. 6 shows a variant in which a filter pack 21 is arranged in a grating frame 20 . As can then be seen from FIG. 9, the filter package comprises a bordering frame with a plurality of grids arranged one behind the other.
  • spacers 120 These are stacked flat on top of each other in FIG. 6 and can have spacers 120 . These are arranged in the flow space.
  • the problem is that these spacers allow their own deposition in addition to the grids, so that the deposition is not actually accomplished primarily by the grids themselves, but rather by the spacers located in between.
  • the grids themselves only provide a comparatively small separation surface for paint residues and the like.
  • assembly does not take place by pushing in the grids on one side, but by stacking the grids M1-M4 and the spacers in between. A mounting of the grids at the edge is not disclosed, so that the spacing of the grids is arbitrary.
  • EP 3 167 948 A1 and DE 10 2014 003608 A each disclose individual filter structures with different separation characteristics, which can be inserted loosely one behind the other as a set in the direction of flow in a housing of a filter module.
  • these ideas were implemented using cardboard inserts, but the documents also reveal the possibility of implementation with metal elements.
  • the focus of both documents is the modular structure and thus the interchangeability of individual filter structures in a filter module, so that there is also a "single-use" concept here.
  • the loose Arrangement in the variant of the metal plates would be repealed, for example, if the respective filter modules shown are subjected to a pyrolysis treatment, in which the modules would warp or jam due to their thermal expansion. Then they would no longer be interchangeable.
  • the filter elements described are not capable of pyrolysis, taking into account the basic idea of interchangeability of individual filter structures.
  • the object of the present invention is to provide a filter module in which filter plates can be easily mounted and/or easily exchanged at defined positions and distances.
  • the filter module is also chemically and/or thermally resistant in parts or as a whole and can therefore be cleaned and is therefore suitable for multiple use.
  • the present invention solves this problem by a filter module having the features of claim 1 and by using a filter module having the features of claim 2.
  • Also according to the invention is a paint booth with the features of claim 14 and a method for regenerating and/or refurbishing a filter module according to the invention with the features of claim 15
  • a filter module according to the invention has an inflow side and an outflow side and serves to separate lacquer and/or paint residues in its interior.
  • a preferred area of application is the separation of overspray in a paint booth.
  • the filter module has an arrangement of several filter plates, which are inseparably connected to one another by a guide structure to avoid tension and deformation during pyrolysis or chemical cleaning and in particular with additional loading of the filter module by the masses of other filter modules during pyrolysis or chemical cleaning connected is.
  • the guide structure is preferably arranged at the edge of the filter plates.
  • the filter plates are spaced apart from one another by the guide structure, with the entire filter module, ie the guide structure, the filter plates and also a housing box, consisting of a pyrolysis-resistant and/or chemically resistant material. This allows the filter module to be cleaned and reused with minimal waste and thermal energy recovery in the event of pyrolysis.
  • the guide structure is arranged in a materially bonded manner on the wall of a housing box that is open at the end. Additional closed outer housings are not necessary with this design.
  • two opposite walls of the housing box each have a guide structure in the form of guide grooves. This serves to space the filter plates from one another. They also serve to guide and position the filter plates during assembly.
  • the filter module can be equipped individually according to the application. Depending on which type of paint is used and what degree of separation is required, the filter plates can be selected accordingly. Accordingly, the appropriate set of filter plates can be put together from a large selection of filter plates with different degrees of separation using simulation software. The distances between the filter plates and thus their position relative to one another are predetermined by the guide structure in the form of slots.
  • the assembly can be carried out according to a simulation in such a way that the slot is equipped with the filter plate determined for this slot and with the specified degree of separation.
  • the filter module can have an optional overhead grating-like structure.
  • overhead means an inflow-side arrangement in the housing box or above it.
  • Said structure is firmly connected to the housing box and at the same time interchangeable with it.
  • the structure serves as the first pre-separation element. Due to the structure, the replaceable filter elements can be designed so that they can be walked on when they are arranged in the paint booth, which means that the usual access level of the paint booth, consisting of a steel substructure and gratings, can be omitted. Since the walk-in pre-separator is also cleaned in the pyrolysis or chemical paint stripping, the regular removal, shipping and external paint stripping of gratings, as is customary in state-of-the-art paint booths, is no longer necessary.
  • a filter module can be designed as a so-called hybrid filter module and consist of a housing box made of a pyrolysis-resistant and/or chemically inert material, such as metal.
  • the filter elements in particular in the configuration as filter plates, can, however, comprise or be formed from cellulose, in particular cardboard and/or paper, but also other organic materials and/or plastics.
  • part of the filter material can be burned or otherwise dissolved during processing, so that new filter plates can always be inserted into the guide grooves of the guide structures.
  • at least the housing box and the guide structures and, if necessary, part of the inert separating elements are reused.
  • less energy has to be used for pyrolysis, since the housing box can be heated and pyrolytically cleaned with less energy than is necessary when cleaning the entire internal structure.
  • the filter module for separating lacquer and/or paint residues.
  • the filter module has particular advantages in terms of its cleanability.
  • a use of the filter module for separating lacquer and/or paint residues using a regenerative pyrolysis treatment after said separation is particularly preferred.
  • Pre-treatments include roughening, for example, by sandblasting individual surfaces.
  • the filter plates of the filter module are stacked one behind the other, with the stacking direction corresponding to the inflow direction from the inflow side to the outflow side of the filter module, and the filter plates being designed in such a way that the separation efficiency of the filter module increases in the stacking direction.
  • filter plates are preferably used.
  • the difference between a perforated filter plate and a grid can be seen, among other things, in the fact that the average width of the intermediate areas between the holes in the filter plate is greater than the plate thickness.
  • the average width of the intermediate areas refers to an average value. It is clear that the intermediate areas are terminally wider than in the central area where the arcs of the holes converge.
  • an average of all widths over the entire length of the intermediate area, which corresponds to the mean width is to be formed. This relationship can also be seen directly from the following figures of individual embodiment variants.
  • a grid on the other hand, consists of a large number of struts connected to one another at crossing points, in which the width and thickness are usually the same.
  • a grid offers only an extremely small separation area.
  • the filter plates used according to the invention can have round, oval holes or honeycomb structures. These filter plates also have intermediate areas between the holes, which do not have a uniform width in their extension along the plane of the plate, but which widen at the crossing points and thus offer more separation surface for the paint. These differences also become clear from a consideration of the specific exemplary embodiments and the figures.
  • Each of the filter plates preferably has passage openings, the sum of the areas of the passage openings per filter plate advantageously decreasing from the inflow side to the outflow side and/or the number of passage openings per filter plate advantageously increasing from the inflow side to the outflow side.
  • the guide structure and the filter plates can advantageously be formed as a unit by means of a material connection, in particular by gluing or preferably welding. This increases the stability of the filter module and thus the mechanical resilience and the cleanability of several filter modules stacked one on top of the other by pyrolysis. The weight of the metal filter modules is considerable. Typical dimensions include a volume of more than 0.075 cubic meters, in particular between 0.08-0.12 m 3 .
  • At least a first filter plate of the filter module can have an angled or rounded sub-segment adjacent to a through-opening, which projects out of the plate plane of the filter plate in the outflow direction or counter to the outflow direction and partially covers the through-opening.
  • the angle of the sub-segment in deviation from its alignment in the plane of the plate is preferably between 25-155°, particularly preferably between 30-60°.
  • the filter module can have a filter plate which, apart from its plate thickness, essentially runs along the plane of the plate.
  • the plate thickness of the filter modules described above, with or without an angled or rounded partial segment, is preferably less than 5 mm, preferably between 0.2 mm and 3 mm. This makes handling the filter modules easier and leads to a reduction in weight. At the same time, the thin plates heat up faster during pyrolysis, so that the cleaning time is reduced. A plate thickness of more than 0.2 mm helps to improve the mechanical stability of the filter module.
  • the entire filter module is preferably made of steel, preferably the material class of high-temperature-resistant and/or chemically resistant stainless steels, such as class 1.4713.
  • the filter module is preferably used in a filter, where it serves as the main separator for paint and varnish residues. There is also a second filter module downstream of the main separator in terms of flow mechanics as a post-filter Part of the filter, with the post-filter having a higher degree of separation than the main separator.
  • the post-filter should have a pyrolysis-capable or chemically-resistant filter material, in particular metal wool, metal mesh or ceramic fibers.
  • the entire filter can therefore be pyrolyzed or chemically cleaned, which further reduces the volume of waste.
  • the filter module can be used in particular in the filter as part of a filter block with several other filters arranged next to and/or on top of one another, both in a support structure and without such a structure.
  • Also part of the present invention is a painting booth comprising a painting room and a plurality of filter blocks, as well as a transport system for replacing the filter blocks and pyrolysis and/or chemical cleaning for regenerating one or more filter blocks, with an aforementioned filter module being used in the filter block according to the invention.
  • the paint booth can advantageously include a system for semi-automatic filter changing.
  • This system can have a suitable conveyor system, on which both commercially available cardboard filters and the hybrid filters described above as well as the metal filters mentioned in the claim are transported, preferably cyclically.
  • New cardboard filters, partly recycled hybrid filters or recycled, cleaned metal filters are placed on the conveyor system in a feed area outside the paint booth, preferably manually, and after they have been cycled through the booth, they are manually removed behind the booth.
  • the loading of the filters with overspray or the pressure loss in the flow through the cabin length can also occur when replacing the filter module are kept constant and, in contrast to cabins with permanently installed filters, the laminar air flow is not disturbed.
  • Also according to the invention is a method for regenerating the aforementioned filter module, comprising the following steps: i generation of a notification signal with regard to a consumption state of a filter module used in a painting booth; ii replacement of a used filter module by a transport unit, wherein a different transport unit is preferably used for transporting a new and/or regenerated filter module than for transporting away the used filter module; iii Transferring the used filter module into a pyrolysis oven, in which adhering paint residues are thermally decomposed at more than 350°C and/or chemical cleaning, whereby the filter module is regenerated for repeated, possibly multiple use in a paint booth.
  • the paint booth can advantageously have an arrangement of filter blocks, which are arranged beyond the transport device for receiving paint and/or paint residues, and with the filter blocks being arranged such that they can be displaced in relation to one another.
  • filter blocks which are arranged beyond the transport device for receiving paint and/or paint residues, and with the filter blocks being arranged such that they can be displaced in relation to one another.
  • the exchange takes place by pushing the filter block into its place of use in the arrangement of filter blocks, llc at an ejection position a used filter block is pushed out of the arrangement of filter blocks and is thus positioned on the transport unit, and the ejection position does not correspond to the insertion position.
  • FIG. 3 a partially transparent perspective view of a first variant of a filter comprising a filter module according to the invention
  • FIG. 3b perspective view of a first variant of a filter comprising a filter module according to the invention
  • FIG. 4 partially transparent perspective view of a filter block comprising a plurality of filters from FIG. 3a or 3b;
  • FIG. 5 shows a schematic cross section of a paint booth
  • FIG. 6 Sectional plan view of a paint booth at the level of a
  • Grating comprising an arrangement of filter blocks
  • FIG. 7a shows a schematic first variant of a paint booth
  • a filter module 1 for separating overspray in a paint shop.
  • Overspray of this type occurs when painting vehicles or everyday objects, for example, in a paint booth. More typically, such a paint booth has an interior space for positioning a vehicle or an object to be painted, and a paint and/or paint dispenser, such as a nozzle bar having a plurality of spray nozzles.
  • the body of a vehicle or the object is preferably positioned on a frame on a grating and is sprayed with lacquer and/or paint.
  • An air duct in particular a circulating air duct, is arranged below the grating, via which excess lacquer and/or paint residues are sucked off.
  • a filter block is arranged between the air duct and the grating, through which the paint and/or paint is conducted and in which harmful paint or paint components are deposited.
  • WO 2009/030308 A1 discloses the basic structure of a suitable paint shop, the filter block being provided with a loose bed with the disadvantages mentioned at the outset.
  • filter modules 1 are used in a paint shop in the present invention. These are made of metal and preferably formed in one piece.
  • one-piece means that the individual components of the filter module are connected to one another in a material-to-material manner, e.g. by welding or gluing. Point connections or, particularly preferably, line connections, e.g. weld seams, can be provided between the components.
  • a filter module 1 shown as an example in Fig. 1 and 2a comprises a metallic housing box 4 with filter plates 2, 7, 8 bordered at the edge .
  • two opposite walls of the housing box 4 can each have a guide structure 3, for example guide grooves. This serves to space the filter plates 2, 7, 8 from each other. They also serve to guide and position the filter plates 2, 2' during their assembly.
  • the filter module 1 has a front and a rear opening, viewed from the flow direction F on.
  • the filter plates 2 , 7 , 8 have a plate plane that is inclined, in particular perpendicular, to the inflow direction F. They have a plate thickness of preferably less than 5 mm and are arranged at the edges in the guide structure 3, in particular in guide grooves.
  • the filter plates 2, 7, 8 each have through-flow openings 5, 6.
  • Flow openings arranged at the edge can have a different shape than centrally arranged flow openings 5 for reasons of space requirements.
  • the sum of all flow openings 5a, 5b or 5c per filter plate 2, 7 or 8 each define an opening area A, which in a sequence of several filter plates 2, 7, 8 decreases in the inflow direction F from the inflow side I to the outflow side 0 of the filter module 1.
  • intermediate areas 10 are arranged between the through-flow openings 5, 6. These also have an average width B, which is greater than the plate thickness of the filter plate 2.
  • the intermediate areas 10 between the through-flow openings 5, 6 widen from a central area 10a towards their ends 10b.
  • the flow openings 5, 6 are preferably designed as round holes and/or oval holes.
  • the number of openings 5a, 5b, 5c in a filter plate can increase in the sequence of filter plates 2, 7, 8 in the inflow direction F.
  • the filter module for multiple use is made from a pyrolysis-resistant and/or chemically resistant metal, preferably from a steel of material class 1.4713 and in particular from high-grade steel.
  • Resistant to pyrolysis in the context of the present application includes dimensional stability at at least 350°C, preferably 480°C.
  • the pyrolysis resistance also includes a mechanical resilience of the filter module 1 when the filter module is loaded with a mass of at least 20 kg, preferably at least 50 kg up to the aforementioned temperature limit of 350°C, in particular 480°C.
  • the background is the possibility of arranging several filter modules in a stack in a filter block, so that the weight of the upper filter modules does not lead to a deformation of the lower filter modules during the pyrolysis process.
  • the filter module 2 is designed for multiple use.
  • the sequence of the filter plates 2, 7, 8 with the corresponding gradient of the degree of separation advantageously prevents blocking of the filter module 1 during operation.
  • the housing box 4 as part of the filter module is only optional. Instead of the housing box, only a frame with the guide structure 3 can be provided for insertion into a box-shaped outer housing 51 of a filter 50 . This is explained in more detail below in FIG. 3a.
  • FIG. 2b shows, in a modification to FIG. 1, filter plates 2' with a plurality of first partial plate segments 9b running in the plane of the plate and second partial segments 9a which are angled in relation thereto.
  • the angle of the second sub-segments 9a in deviation from their alignment in the plane of the plate is preferably between 25-155°, preferably between 30-60°.
  • turbulence occurs to a greater extent along the angled sub-segments, which runs out in a flat direction up to a tear-off edge. Due to the stability of the vortices, a particularly large number of paint and/or paint particles are transported from the mist to the center of the vortex due to their inertia. This is where the shear turbulence is greatest. In terms of fluid dynamics, shear turbulence is usually undesirable because it causes a drop in pressure.
  • the sword turbulence in the present application ensures a fine distribution of Paint and / or paint particles along the surface and the pressure loss, so that the droplet and / or particle-laden air flow is slowed down and with increased dissipation along the surface of the respective filter plate 2 'is guided along.
  • the angled second sub-segments can be easily produced in terms of production technology by stamping out on three sides and bending over from the plane of the plate.
  • the filter plates 2, 2', 7, 8 are essentially two-dimensional objects whose extension in the third spatial direction does not exceed the plate thickness.
  • the management structure 3 has, in particular, occupancy spaces 20 , 21 .
  • the occupancy space 20 is occupied in Fig. 2b by a filter plate, while the occupancy space 21 is free. This is due to the space requirement of the filter plate with the angled partial segments 9a, which are bent out of the plane of the filter plate and therefore require more space in the stacking direction, which is also the inflow direction F.
  • the angled sub-segments ensure more optimized flow guidance and thus more optimized dissipation of color particles along the surface of a filter plate.
  • 2c shows a mixed configuration of the filter plates 2 and 2' with an increasing degree of separation in the inflow direction of the filter module.
  • the places are not fully occupied, but more than 60% are occupied.
  • the openings 5 are circular in the central position of the respective filter plate. This is just an example of a shape. It can be of any shape, such as oval, rectangular, triangular, oblong, or any other shape.
  • the filter plates 2′′ shows a mixed arrangement of filter plates 2" with semicircular filter elements spaced apart from one another and filter plates 2"' with honeycomb structure elements 2''" spaced apart from one another.
  • the filter plates 2′′′ are arranged downstream of the filter plates 2′′, so that the structure of the filter plates changes with an increasing degree of separation in the flow direction of the filter module.
  • the filter plates 2′′ can preferably consist of pyrolysis-capable material, such as metal, and the honeycomb structures 2′′ can optionally be made of pyrolytic or made of cellulose material.
  • the dashed outline between the filter elements of the filter plates 2" and 2"' are plate connecting webs.
  • honeycomb structure elements are preferably constructed like square tubes, e.g.
  • FIG. 2e shows, by way of example, a configuration consisting exclusively of filter plates 2′′ with semi-circular filter elements, which can preferably consist of material that is capable of pyrolysis. Such an arrangement is particularly suitable for sticky, non-hardening paints.
  • Capable of pyrolysis means that the material is stable under conditions in which conventional vehicle paints pyrolyze.
  • FIG. 2f shows a filter module with a mixed configuration, analogous to FIG. 2d, but with the additional addition of a grating 2' v on the inflow side.
  • connection of the filter plates 2, 7, 8 in Figures 2a and 2c is a preferred embodiment.
  • the connection can also be made by inserting the filter plates into the guide structure, so that the filter plates lie in a form-fitting manner in the guide structure.
  • the housing box 4 can be closed, in particular welded, so that the filter plates and the housing box form an inseparably connected unit.
  • FIG. 3a shows a filter 50 for use in a paint booth of a paint shop, in particular for vehicle bodies.
  • the filter has a tubular outer housing 51 in which two filter modules 1 and 52 matched to the inner contour of the outer housing 51 are arranged, in particular inserted.
  • the outer housing 51 is used to hold the filter modules 1 and 52 on a mount in the paint booth or it can itself represent the mount. That
  • the filter module 1 according to the invention serves as a so-called main separator and within the filter 50.
  • another filter module 52 is arranged, which serves as a post-filter.
  • the filter module 52 can preferably have a pyrolysis-resistant material with a greater degree of separation than the filter module 1 .
  • Such a material can, for example, be steel wool, preferably from material class 1.4713.
  • Ceramic fibers, including CEF fibers, fiber mats or porous ceramic foam or other heat-resistant material with a large surface area are basically suitable as filling material for the filter module 52 .
  • a filter module 1 can also be used in which only the guide contour 3 is realized, e.g. in a frame, but without the box housing 4.
  • the outer housing 51 can also have additional means for sealing the guide contour 3 or the frame in relation to the side walls mentioned.
  • FIG. 3b shows a further modification of the filter of FIG. 3a as a filter 50' with an open frame 53 instead of the outer housing 51.
  • FIG. A first filter module 1 as a main separator and a second filter module 52 as a post-filter in the inflow direction F are also arranged one behind the other within this frame 53 .
  • a first filter module 1 is designed with a housing box 4 that is open at the end.
  • the frame 53 is composed of a plurality of frame bars and is open at the side.
  • the filter modules 1 and 52 can be pushed into the frame 53 or used in some other way.
  • the material of the frame 53 and/or of the outer housing 51 can preferably be made of a pyrolysis-resistant material, in particular steel of material class 1.4713.
  • the heating of the filter module 1 in a frame 53 is more direct than in the variant of FIG. 3a.
  • Fig. 4 shows a filter block 100 consisting of eight filter modules, each with four first filter modules 1 according to the invention and four downstream second filter modules 52 designed as post-filters.
  • the filter block 100 is composed of four filters 50', with two being arranged next to one another and two on top of one another.
  • the upper filters exert a load of at least 20 kg, preferably 50 kg on the lower filters.
  • the filter modules 1 have a width and height of less than 500 mm, and ideally also a length of less than 500 mm, so that the filter block 100 fits into a pyrolysis furnace with an opening width of 1 m.
  • the paint booth 200 has a dispensing unit 201, e.g. a nozzle unit, for dispensing and/or distributing a paint mist over the body.
  • the painting booth 200 has a painting room 202 in which the body is placed during operation.
  • the paint booth 200 then has a grating 203 for discharging the paint and/or the paint, in particular the paint or paint mist.
  • a grating 203 for discharging the paint and/or the paint, in particular the paint or paint mist.
  • Below the grating 203 there is a field or an arrangement made up of a large number of filter blocks 100 .
  • the filter blocks are arranged directly adjacent to one another, with the first filter modules 1 according to the invention being aligned with their inflow side I towards the grating 203 .
  • a grating, in particular made of metal can also be integrated in the filter module on the inflow side, analogously to FIG. 2f, within the scope of the present invention, so that the filter modules and filter blocks are designed so that they can be walked on.
  • the second filter modules 52 are arranged below the first filter modules according to the invention with reference to the top view of FIG. 6 .
  • transport devices 205 and 207 are provided for transporting filter blocks 100 away or in, in the event that they are used up and have to be exchanged for new filter blocks.
  • the transport device 207 of the center lane transports away the used filter blocks 100b and the transport device 205 transports away the new or regenerated filter blocks 100a.
  • the transport device 207 can have an insertion device, for example a robot arm or the like, which enables the filter block to be inserted from the transport plane into the field of filter blocks.
  • a used filter block is removed from the field repressed.
  • the transport devices 205 and 207 are each provided with a roof 221 and/or housing 220 so that paint does not get into the transport area.
  • Suitable transport devices are conveyor belts, chain conveyors, trolley conveyors, shuttle systems or the like.
  • FIG. 6 shows a deflection transport device 208 which enables the filter blocks to be forwarded from the opening of a pyrolysis oven 209 to the peripheral area.
  • This pyrolysis oven 209 is also part of the paint booth.
  • the pyrolysis oven accommodates at least one filter block and heats it to temperatures of at least 350°C, preferably less than 600°C, in particular 500°C.
  • a chemical cleaning system can be used.
  • the pyrolysis oven 209 can have an ejection unit.
  • paint and varnish compounds that have been deposited on the filter modules 1 and 52 of a filter block 100 are thermally decomposed and transported away. This procedure and the multiple use of the filter modules make a significant contribution to reducing the waste produced by a paint shop.
  • the filter blocks 100 can be arranged at various positions in a paint booth 200, with FIG. 7a representing a so-called underfloor suction system. As shown in FIGS. 7a and 7b, the filter blocks 100 can be arranged in a floor area 210 of the painting room 202 above the circulating air duct 206 or along a side wall 211 of the painting room upstream of the circulating air duct 206' in terms of flow mechanics. In both cases, it is advisable to spatially separate the painting room 202 by means of a grating 203 or 203'. Here, individual filter blocks can be removed or installed from the front.
  • Fig. 8a-d graphically represents individual method steps of a method 100 according to the invention for the regeneration of filter modules or filter blocks 100 according to the invention.
  • step 301 there is first a message that a filter block is full. This can be time-controlled or by weight determination or by sensory detection by a sensor element installed in the filter module. Only one guide can be seen from the transport unit 205 and 207 in each case. After the message, a carriage 205a is moved in step 302 with a new or regenerated filter block 100 to the replacement position. This is done in step 303.
  • the used filter block 100b is thereby displaced inwards and ejected. This takes place in step 304.
  • a carriage 207a provided as part of the transport device 207 picks up the filter block and transports it to the pyrolysis oven.
  • the path of the carriage 207a to the pyrolysis oven is preferably linear—that is, direct—so that contamination is given little time and distance to spread. This can be seen in particular from FIG.
  • the filter block 100 or at least the filter module 1 can also be immersed in a cleaning bath. Aggressive cleaning media, possibly in conjunction with ultrasonic application, can cause the paint and/or paint residues to be detached from the surface. Here, too, individual plates can slip, which is why a fixed connection to the guide structure is preferred.
  • the filter module - unlike cardboard elements in the single-use area - does not dissolve during cleaning.
  • filter components made of metal with parts connected to one another by a material connection are particularly favorable for conducting the vibrations. Other materials such as cardboard or ceramic foam tend to dampen the sound, making efficient ultrasonic cleaning more difficult.

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  • Filtering Materials (AREA)

Abstract

L'invention concerne un module filtrant (1) qui comprend un côté d'entrée de flux (I) et un côté de sortie de flux (O) pour la séparation de résidus de vernis et/ou de peinture, en particulier d'un excès de pulvérisation, dans une cabine de peinture (200); le module filtrant (1) comprenant un agencement constitué d'une pluralité de plaques filtrantes ( 2, 7, 8, 2') qui sont reliées de manière permanente les unes aux autres à l'intérieur du module filtrant (1) par l'intermédiaire d'une structure de guidage (3) et qui sont espacées les unes des autres; ladite structure de guidage (3), qui se présente sous la forme de rainures de guidage pour espacer les plaques filtrantes (2, 7, 8, 2') les unes des autres, étant disposée par liaison de matière sur la paroi d'un caisson formant boîtier (4) à extrémité ouverte, deux parois opposées du caisson formant boîtier (4) comportant respectivement une structure de guidage (3) de présentant sous la forme de rainures de guidage. Cette invention concerne en outre l'utilisation de ce module filtrant dans une cabine de peinture, ainsi qu'un procédé pour la régénération thermique et/ou chimique du module filtrant.
PCT/EP2021/087107 2020-12-23 2021-12-21 Module filtrant et utilisation d'un module filtrant pour la séparation de résidus de vernis et/ou de peinture, en particulier d'un excès de pulvérisation, dans une cabine de peinture WO2022136444A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21843955.2A EP4267313A1 (fr) 2020-12-23 2021-12-21 Module filtrant et utilisation d'un module filtrant pour la séparation de résidus de vernis et/ou de peinture, en particulier d'un excès de pulvérisation, dans une cabine de peinture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20217023.9 2020-12-23
EP20217023.9A EP4019146A1 (fr) 2020-12-23 2020-12-23 Module filtrant et utilisation d'un module filtre pour la séparation de peinture et/ou de résidus de peinture, en particulier de l'excédent de peinture dans une cabine de peinture

Publications (1)

Publication Number Publication Date
WO2022136444A1 true WO2022136444A1 (fr) 2022-06-30

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PCT/EP2021/087107 WO2022136444A1 (fr) 2020-12-23 2021-12-21 Module filtrant et utilisation d'un module filtrant pour la séparation de résidus de vernis et/ou de peinture, en particulier d'un excès de pulvérisation, dans une cabine de peinture

Country Status (2)

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EP (2) EP4019146A1 (fr)
WO (1) WO2022136444A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0129447A1 (fr) * 1983-06-21 1984-12-27 Pall Corporation Procédé de nettoyage de filtres métalliques
US6162270A (en) 1997-06-07 2000-12-19 N.S.Technologies Inc. Downdraft paint booth and filters therefor
WO2009030308A1 (fr) 2007-08-29 2009-03-12 Eisenmann Anlagenbau Gmbh & Co. Kg Installation de pulvérisation dotée d'un système de recyclage des excès de pulvérisation recueillis sur des éléments de dépôt en vrac
EP1492609B1 (fr) 2002-04-09 2011-05-11 Brain Flash-Patententwicklungs GmbH Module filtrant
US20140130674A1 (en) 2011-07-27 2014-05-15 Dürr Systems GmbH Filter installation and method for operating a filter installation
DE102014003608A1 (de) 2014-03-13 2015-09-17 Jens Neumann Filtermodul für einen Farbnebelabscheider
EP3167948A1 (fr) 2014-04-07 2017-05-17 Brain Flash-Patententwicklungs GmbH Dispositif pour eliminer des exces de peinture humide

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0129447A1 (fr) * 1983-06-21 1984-12-27 Pall Corporation Procédé de nettoyage de filtres métalliques
US6162270A (en) 1997-06-07 2000-12-19 N.S.Technologies Inc. Downdraft paint booth and filters therefor
EP1492609B1 (fr) 2002-04-09 2011-05-11 Brain Flash-Patententwicklungs GmbH Module filtrant
WO2009030308A1 (fr) 2007-08-29 2009-03-12 Eisenmann Anlagenbau Gmbh & Co. Kg Installation de pulvérisation dotée d'un système de recyclage des excès de pulvérisation recueillis sur des éléments de dépôt en vrac
US20140130674A1 (en) 2011-07-27 2014-05-15 Dürr Systems GmbH Filter installation and method for operating a filter installation
DE102014003608A1 (de) 2014-03-13 2015-09-17 Jens Neumann Filtermodul für einen Farbnebelabscheider
EP3167948A1 (fr) 2014-04-07 2017-05-17 Brain Flash-Patententwicklungs GmbH Dispositif pour eliminer des exces de peinture humide

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Publication number Publication date
EP4267313A1 (fr) 2023-11-01
EP4019146A1 (fr) 2022-06-29

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