Separation of excessively sprayed lacquer and separation fluid
Abstract
FIELD: process engineering. SUBSTANCE: invention relates to process and separation fluid for removal of solid particles from excess spraying fluid formed at painting the parts. In compliance with this process, excess spraying fluid is entrapped by airflow and conveyed to separation surface (42a, 42b) washed by separation fluid whereat at least a portion of solid substances gets into separation fluid, diverted by the latter and removed from the fluid by sedimentation. Used is separation fluid containing degumming medium and carrier fluid. Note here that particles of excessively sprayed lacquer are degummed by said medium. EFFECT: efficient separation. 22 cl, 7 dwg, 6 ex

Term
Projected expiry 13 August 2029.
- Priority
- Filed
- Granted
- Today
- Projected expiry
22 claims: 3 independent, 19 dependent
- 1Способ удаления твердых веществ из образующегося при окрашивании объектов избытка распыления, в котором избыток распыления захватывается потоком воздуха и транспортируется на омываемую сепарационной жидкостью сепарационную поверхность (42а, 42b), где большая часть по меньшей мере твердых веществ переходит в сепарационную жидкость, отводится ею и за счет осаждения удаляется из жидкости, отличающийся тем, что применяют сепарационную жидкость, которая содержит обесклеивающую среду и жидкость-носитель, при этом частицы избыточно распыленного лака обесклеиваются обесклеивающей средой.
- 2Способ по п.1, отличающийся тем, что обесклеивающая среда является обесклеивающей средой на основе силикатов, предпочтительно слоистых силикатов, бентонитов, сепиолитов, глиноземов;на основе солей алюминия, предпочтительно солей алюминия, которые при нейтральных и щелочных водородных показателях образуют гидроксиды, предпочтительно сульфата алюминия, хлорида алюминия, нитрата алюминия;на основе солей цинка, предпочтительно солей цинка, которые при нейтральных и щелочных водородных показателях образуют гидроксиды, предпочтительно хлорида цинка, сульфата цинка;на основе солей железа, предпочтительно солей железа, которые при нейтральных и щелочных водородных показателях образуют гидроксиды, предпочтительно хлорида железа, сульфата железа;на основе солей кальция, предпочтительно хлорида кальция, нитрата кальция, ацетата кальция;на основе солей циркония, предпочтительно хлорида циркония, ацетата циркония;на основе полимеров, предпочтительно полиакриламидов, полиметакриламидов или продуктов конденсации меламина/формальдегида;или на основе аминов, предпочтительно диаминов, предпочтительно 2-метилпентаметилендиамина, этилендиамина.
- 3Способ по п.2, отличающийся тем, что сепарационная жидкость содержит обесклеивающую среду в количестве от 0,1 до 20 масс.%, предпочтительно от 1 до 5 масс.% от общей массы сепарационной жидкости.
- 4Способ по одному из пп.1-3, отличающийся тем, что сепарационная жидкость в качестве жидкости-носителя содержит воду.
- 5Способ по п.4, отличающийся тем, что сепарационная жидкость, кроме того, содержит один или несколько полярных, водорастворимых растворителей, предпочтительно этиленгликоль, пропиленгликоль, полиэтиленгликоль или полипропиленгликоль.
- 6Способ по п.5, отличающийся тем, что сепарационная жидкость содержит полярный водорастворимый растворитель в количестве от 1 до 60 масс.%, предпочтительно от 20 до 40 масс.% от общей массы сепарационной жидкости.
- 7Способ по п.4, отличающийся тем, что сепарационная жидкость, кроме того, содержит один или несколько смачивателей, предпочтительно неионные, анионные или катионные поверхностно-активные вещества, особо предпочтительно неионные поверхностно-активные вещества, предпочтительно этоксилаты спирта жирного ряда, пропоксилаты спирта жирного ряда.
- 8Способ по п.7, отличающийся тем, что сепарационная жидкость содержит смачиватели в количестве от 0,1 до 5 масс.% от общей массы сепарационной жидкости.
- 9Способ по п.4, отличающийся тем, что сепарационная жидкость, кроме того, содержит загустители, предпочтительно целлюлозу, карбоксиметилцеллюлозу, метилэтилцеллюлозу, гидроксипропилцеллюлозу, гидроксипропилэтилцеллюлозу, полисахариды, гуммиарабик, ксантан или модифицированный крахмал, особо предпочтительно карбоксиметилцеллюлозу.
- 10Способ по п.9, отличающийся тем, что сепарационная жидкость содержит загустители в количестве от 0,1 до 5 масс.%, предпочтительно от 0,1 до 1 масс.% от общей массы сепарационной жидкости.
- 11Способ по п.4, отличающийся тем, что сепарационная жидкость, кроме того, содержит консерванты, предпочтительно изотиазолины;четвертичные соединения аммония, такие как дидецилдиаммонийхлорид, диоктилдиаммонийхлорид;диметилолдиметилгидантоин;бромохлородиметилгидантоин или бисоксазолидин;предпочтительно в количестве от 0,5 до 10 масс.% от общей массы сепарационной жидкости.
- 12Способ по п.1, отличающийся тем, что сепарационная жидкость в качестве жидкости-носителя содержит масло.
- 13Способ по п.12, отличающийся тем, что сепарационная жидкость, кроме того, содержит стабилизирующие средства, предпочтительно в виде органических кислот, предпочтительно в виде кислот жирного ряда, особо предпочтительно в виде олеиновой кислоты, пальмитиновой кислоты, стеариновой кислоты или гидроксистеариновой кислоты в количестве от 0,1 до 15 масс.% от общей массы сепарационной жидкости.
- 14Способ по п.12 или 13, отличающийся тем, что сепарационная жидкость, кроме того, содержит кислоту жирного ряда в количестве от 1 до 30 масс.%, предпочтительно от 3 до 20 масс.% от общей массы сепарационной жидкости, предпочтительно олеиновую кислоту, пальмитиновую кислоту, стеариновую кислоту или гидроксистеариновую кислоту.
- 15Способ по п.12 или 13, отличающийся тем, что сепарационная жидкость, кроме того, содержит гидроксид металла, предпочтительно гидроксид натрия, гидроксид калия или гидроксид лития в количестве от 1 до 5 масс.% от общей массы сепарационной жидкости.
- 16Способ по п.1, отличающийся тем, что вязкость сепарационной жидкости, измеренная с помощью сливной воронки по DIN EN ISO 2431, немецкая редакция EN ISO 2431:1996, от 1996 г., со сливным отверстием диаметром 6 мм, составляет от 2 до 100 секунд, предпочтительно от 5 до 20 секунд и особо предпочтительно 10,5 секунд.
- 17Способ по п.1, отличающийся тем, что сепарационная жидкость является электрически проводящей и избыточно распыленный лак ионизируют с помощью электродного устройства (56, 156) и сепарируют на сепарационной поверхности (42а, 42b), при этом электродное устройство (56, 156) соединено с первым полюсом источника (174) высокого напряжения, а сепарационная поверхность (42а, 42b) соединена со вторым полюсом источника (174) высокого напряжения.
- 18Способ по п.1, отличающийся тем, что жидкость-носитель и обесклеивающую среду подают в приемник (1112) независимо друг от друга.
- 19Способ по п.1, отличающийся тем, что содержащую избыточно распыленный лак сепарационную жидкость регенерируют и используют повторно.
- 20Способ по п.19, отличающийся тем, что регенерация происходит посредством фильтрации, которая содержит по меньшей мере одну ступень (1118;1160) фильтрования.
- 21Способ по п.1, отличающийся тем, что измеряют вязкость подводимой на сепарационную поверхность (42а, 42b) сепарационной жидкости.
- 22Сепарационная жидкость для удаления твердых веществ из образующегося при окрашивании объектов избытка распыления, отличающаяся тем, что сепарационная жидкость имеет признаки сепарационной жидкости по одному из пп.1-17.
Independent claims22
131 paragraphs in 6 sections, as filed
The invention relates to a method for removing solids from the resulting when stained objects excess spray, wherein excess spray entrained by air flow and transported to the washed separation liquid separation surface, where the majority of at least the solid went into the separation liquid is discharged by it and by depositing removed of liquid.
Furthermore, the invention relates to the separation of the liquid to remove solids formed during the staining of the object excess spray.
In the manual or automatic application of varnish on objects substream varnish which generally contains both solids and solvents and / or binders, are not applied to the object. Among experts, this partial flow is called "excess spray." Excess spraying entrained in the chamber air stream and fed to the spray separation.
First of all, units with relatively large flow of lacquer, such installations coloring vehicle bodies, preferably applied wet separation system in which the method of said first type. In known installations on the market as the separating liquid is water or oil, which has been intensively swirled with the air chamber and containing the excess spray.
In order to absorbed liquid particle separation lacquer can be perfectly laid on the surface of the separation, the liquid separation must fulfill specific criteria. These include, for instance, that the gluing operation varnish particles should be removed in order that they, if they are liquid after separation come into contact with the separating surface from sticking to it.
Furthermore, the vapor pressure of the separation of liquid should be at least so low as to capture gaseous components of the liquid flows past the separation chamber air was minimized as much as possible.
In order to ensure as uniform as possible and free from sagging and the tides wet the surface of the separation, the separation of the liquid surface tension should be fairly low.
First of all, it is desirable that the separation liquid can drain from the separating surface is largely laminar, i.e. at the separation surface to form a thin film which is uniformly moved downward.
Therefore, an object of the invention is to provide a method for separating liquid and said first type, which take into account the idea set forth above and provide effective removal of excess spray from the air chamber through the separation fluid.
With respect to the method this object is achieved due to the fact that the separation liquid is used which contains obeskleivayuschuyu medium and the carrier fluid, the particles of lacquer overspray obeskleivayutsya obeskleivayuschey medium.
Degumming particulate overspray varnish may be effected by induced obeskleivayuschey medium agglomerating overspray paint and / or by curing overspray lacquer that occurs or is accelerated by obeskleivayuschey medium and / or by eliminating, under certain circumstances existing emulsion which is carried obeskleivayuschey medium .
Thus, according to the invention the adhesive properties of the excess spray is largely eliminated, so that the danger of adhesion from the separating excess sputtering surface decreases.
It turned out favorable if the medium is obeskleivayuschey obeskleivayuschaya environment based on silicates, preferably phyllosilicates, bentonite, sepiolite, alumina; based on aluminum salts, preferably aluminum salts, which are at neutral and alkaline pH index form hydroxides, preferably aluminum sulfate, aluminum chloride, aluminum nitrate; based on zinc salts, preferably zinc salts, which are at neutral and alkaline pH index form hydroxides, preferably zinc chloride, zinc sulfate; based on iron salts, preferably iron salts are at neutral and alkaline pH index form hydroxides, preferably ferric chloride, ferric sulfate; based on calcium salts, preferably calcium chloride, calcium nitrate, calcium acetate; based on zirconium salts, preferably zirconium chloride, zirconium acetate; based polymers, preferably polyacrylamide, polymethacrylamide or condensation products of melamine / formaldehyde; or from amines, preferably diamines, preferably 2-methylpentamethylenediamine, ethylenediamine.
Depending on the separation to be established whether the excess spraying water-borne lacquer or varnish, solvent, said medium obeskleivayuschie act as sintering agents, as curing accelerators, or as emulsions splitters.
With the separation of fluids that contain obeskleivayuschuyu medium in an amount of 0.1 to 20 wt.%, Preferably 1 to 5 wt.% Of the total weight of the liquid separation, good results were obtained.
It is advantageous, if the liquid carrier water is used.
In the case of water-based liquid separation proved advantageous if it, in addition, keep one or more polar, water-soluble solvents, preferably ethylene glycol, propylene glycol, polyethylene glycol or polypropylene glycol. These solvents act as intermediaries and facilitate the absorption of dissolving overspray lacquer liquid separation.
Thus, primarily, it appeared advantageous if the separation liquid contains a water-soluble polar solvent in an amount of from 1 to 60 wt.%, Preferably 20 to 40 wt.% Of the total mass of the separation liquid.
Absorption particulate overspray varnish in the case of water-based separating liquid was improved if it also contains one or more wetting agents, preferably nonionic, anionic or cationic surfactants, especially preferred non-ionic surfactants preferably alcohol ethoxylates fatty alcohol propoxylates of fatty.
In this case it is advantageous if the separation liquid contains humectants in an amount from 0.1 to 5 wt.% Of the total mass of the separation liquid. By wetting surface tension can be adjusted by separation of the liquid and its adhesiveness and flowability on the separation surface.
Water-based separation liquid with higher viscosity can be obtained if it further comprises thickeners, preferably cellulose, carboxymethyl cellulose, methylethyl, hydroxypropyl, gidroksipropiletiltsellyulozu, polysaccharides, gum arabic, xanthan gum or modified starch, especially preferably carboxymethylcellulose This is favorable If liquid separation contains thickeners in an amount from 0.1 to 5 wt.%, preferably from 0.1 to 1 wt.% of the total mass of the separation liquid. Viscous liquid separation flows more slowly, so that a certain amount of separation liquid longer is in contact with air containing excess spray chamber and can absorb a large proportion of the excess spray than the same amount of low viscosity liquid separation.
In order to improve storage stability based on water separation liquid it is advantageous if it further comprises preservatives, preferably isothiazolin; quaternary ammonium compounds, preferably didetsildiammoniyhlorid, dioktildiammoniyhorid; dimethyloldimethylhydantoin; bromohlorodimetilgidantoin or bisoxazolidine; preferably in an amount of from 0.5 to 10 wt.% of the total mass of the separation liquid.
In the case of the alternative liquid separation it is favorable, if the carrier fluid is oil. The term "oil" means all oily liquid whose viscosity is initially higher than the viscosity of water. Suitable, for example paraffinic or naphthenic raffinate. Other suitable oils are e.g. Priming oil, canola oil or palm oil. Oils give initially favorable properties such as a high viscosity and a small surface tension, whereby they are well suited as the liquid carrier.
It is useful if the oil-based fluid separation further comprises stabilizing means, preferably in the form of organic acids, preferably a fatty acid, particularly preferably in the form of oleic acid, palmitic acid, stearic acid or hydroxystearic acid in an amount of from 0.1 up to 15 wt.% of the total mass of the separation liquid.
If must be made more pasty separation liquid proved advantageous if it further comprises a fatty acid in an amount of from 1 to 30 wt.%, Preferably 3 to 20 wt.% Of the total weight of the separating liquid, preferably oleic acid or stearic acid.
In this case it is advantageous if the separation liquid further comprises a metal hydroxide, preferably sodium hydroxide, potassium hydroxide or lithium hydroxide in an amount of from 1 to 5 wt.% Of the total mass of the separation liquid.
It is advantageous if the viscosity of the separation of the liquid as measured with a discharge funnel according to DIN EN ISO 2431, German version EN ISO 2431: 1996, 1996, with a discharge hole diameter of 6 mm, is 2 to 100 seconds, preferably from 5 to 20 seconds and particularly preferably 10.5 seconds.
Particularly good results of separation achieved if the separation liquid is electrically conductive, and the overspray paint is ionized by the electrode device and deposited on the separation surface, the electrode device is connected to a first pole of high voltage source and the separation surface of the second pole of high voltage source.
Obeskleivayuschey relationship between medium and the carrier fluid in the separation liquid can be individually adapted to the form of excess spray when a liquid carrier and obeskleivayuschaya medium is supplied to the receiver independently of each other.
From an environmental point of view it is particularly advantageous if the varnish containing overspray liquid separation is recycled and reused.
Regeneration can occur through positive including one filter stage filtration.
It is favorable if the viscosity is measured by summing up on the separation surface of the separation of the liquid. If necessary, the viscosity of the separation liquid can be corrected by adding the individual components.
With regard to the separation of the liquid, the above object is achieved by the fact that the liquid has characteristics separation liquid separation according to one of claims 1-17 claims.
The following examples of the invention are explained in more detail in FIG. It is shown in:
1; cell surface staining process line to a first structural example of a device for the separation of excess spray in front view;
2: the camera according to Figure 1 staining in a perspective view;
3 shows a perspective view of two separation units and three electrode device separation device according to figure 1;
Figure 4: Both the separation unit with the electrode devices according to Figure 3 in elevational view;
5 shows a perspective view of two separation units and three electrode devices according to the second structural example;
6 shows a perspective view of a second embodiment example of a device for the separation of excess spray that comprises several separation assemblies and electrode devices according to Figure 5;
7: a block diagram of the apparatus for supplying liquid separation in the separation units.
Initially, reference is made to Figures 1 and 2. There, reference sign 2 denotes a whole cell surface staining processing line in which painted car body 4 after they have been, for example, cleaned and degreased for two cameras arranged to staining, not separately shown positions pretreatment.
Camera 2 comprises staining positioned above the tunnel 6 coloring, which is bounded by vertical side walls 8a, 8b and a horizontal chamber ceiling 10, but with the ends and bottom is open so that air containing excess atomization chamber can flow down. The ceiling of the chamber 10 is formed in the usual manner as the lower limit of the space (not shown) for supplying air to the filter surface.
At the height of the lower edges flanked by side walls 8a, 8b of the lower opening 12 of the tunnel 6 is staining steel structure 14, which is a support for itself known transport system 16, which is not considered in more detail. With the help of her body to be coated 4 cars can be transported from the inlet side of the tunnel 6 staining his side exit. Inside the tunnel 6 staining are not shown separately intraoral device with which a body to 4 cars per se known manner, the varnish is applied.
Under the bottom opening 12 of the tunnel is open staining 6 up to the side of the tunnel 6 staining separation space 18, wherein the precipitates formed during dyeing lacquer overspray.
The separation space 18 bounded visible in Figure 2 the base plate 20, two vertical side walls 22a, 22b and two vertical end walls, wherein the two last figures 1 and 2 are omitted (not shown). In a separation space 18 located separation unit 24 with a plurality of arranged one behind the other in the longitudinal direction of the separation space 18 of the separation units 26, which will be further discussed in more detail below.
In the separation space 18 between the separation unit 24 and tunnel 6 staining are two air guide flap 28a, 28b, which, starting from the side walls 22a, 22b of the separation space 18, first downwards convergent, and their facing the separation unit 24, the end region diverge to side constraints separation unit 24. The air guide plates 28a, 28b and the corresponding, not shown air guide plates at the ends extend from the top to the separation device 24.
Separation assemblies 26 rest on a support frame 30 which permits downward flow of air from the separating device 24. Under a separation device 24 is another air guide plate 32 which extends along the separation unit 24 in the separation space 18. The air guide plate 32 has a vertical portion 32a which converted to Figures 1 and 2, the left side wall 22a of the separating space 18 and extends obliquely downwards towards the opposite side wall 22b separating space 18 portion 32b. Between the vertical portion 32a of the shield 32 and air horn to Figures 1 and 2, the left side wall 22a of the separating space 18 is represented only schematically in Figure 1 made chute 34 which extends parallel to the vertical portion 32a of the air horn flap 32 and which is longitudinally inclined relative to the horizontal plane.
Figures 3 and 4 illustrate two adjacent separation unit 26 separation unit 24. As can be seen on them, the separation assembly 26 comprises two spaced apart parallel rectangular side plates 36a, 36b, which at their upper end opposite edges are connected to each other by means of a curved portion 38, the outer contour of which clearance corresponds in cross-section forms a semicircle and the upper side 26 of the separation unit.
At the highest point of the curved portion 38 of the separation units 26, it is designed as an overflow chute 40, which will be discussed further hereinafter in more detail.
Respective outer surfaces of the side plates 36a, 36b form a separation surface 42a or 42b, which will also be further discussed in detail again.
At their lower edges of the side plates 36a, 36b each have a gutter 44a, 44b, which extends parallel to the side plates 36a, 36b of the separation units 26 and towards the first front in Figure 3, end 46 of the separation unit 26 is tilted downwards. Gutters 44a, 44b is an end come to an end side plates 36a, 36b of the separation unit 26 (see Fig. 3). Gutters 44a, 44b at their end 48a or 48b at the first end 46 (see Fig. 3) of the separation unit 26 are open.
As shown in Figures 1 and 2, each separation assembly 26 comprises a first end wall 50a, which is located at its first end 46. Opposite end 26 of the separation units, which are not specifically provided with a reference sign, closed second end wall 50b. The end walls 50a, 50b of the separation units 26 close the respective ends of the overflow trough 40. The two end walls 50a, 50b are made of plastic. The first end wall 50a of the separating assembly 26 comprises two breakout 52a, 52b, in which their ends 48a, 48b respectively enters a gutter 44a, 44b. On the opposite gutters 44a, 44b of each end wall 50a at the break 52a, 52b planted trays 54a, 54b for draining. They are made in a profile whose cross section corresponds to the cross-section gutters 44a, 44b.
If the separation device 24 arranged in the separation space 18 of the chamber 2 staining trays 54a, 54b for draining each separation unit 26 protrude over the collection chute 34.
The separation unit 24 on two adjacent separation assembly 26 located in compliance with the distance between them. The separation between two adjacent nodes 26, as well as free from side plates 36a, 36b or both of the outermost separation units 26 within the separation device 24 respectively extends one electrode unit 56, each of which is connected to a high voltage source, which in Figure 4 are not specifically is shown. In a modification of the electrode assembly 56 and may be powered by a single source of high voltage. The separation units 26 are grounded to the housing potential.
Each electrode 56 comprises two lines passing parallel electrode strips 58a, 58b. They keep the field in the area 60 of the electrode arrangement 56 electrode grid 62 extending between the electrode strips 58a, 58b edges 64a, 64b which are vertically arranged last. On the crown portion 66 of the electrode device 56 electrode strips 58a, 58b hold several acting as corona discharge electrode 68. Corona wire conductors 68 are held in a predetermined electrode strips 58a, 58b plane parallel to the edges 64a, 64b of the electrode grid 62 and are located at equal distances from each other .
As shown in Figures 3 and 4, the electrode assembly 56 generally have a length which substantially corresponds to the length of side plates 36a, 36b of the separation units 26. The electrode assembly 56 are arranged so that the lower edge 64b grating electrode 62 is approximately at the height of the lower end of the side plate 36a or 36b.
In operation, the separation device 24 on the corresponding separating surfaces 42a, 42b of the side plates 36a, 36b of the separation units 26 downwards into the gutters 44a, 44b flows separation liquid, which is suitable to absorb solid particles from occurring during the staining excess atomized lacquer .
For this separation, this liquid is supplied into the overflow chute 40 in the curved portion 38 of the separation units 26. From there, fluid separation via an overflow launder extending around 40 curved sides 70a, 70b of the curved portion 38 of the separation unit 26, respectively, in a linked layer falls to the side plates 36a, 36b and drains at their separation surfaces 42a, 42b and referred to as a related liquid layer separation.
Number corona wires 68 of the electrode device 56 and their distance apart can vary depending on properties of the particles for separation of excess spray. In this constructive example the crown has four conductors 68, of which the upper curved portion is about 38 separation unit 26, and located below the corona wire 68 is still in the region of the respective side plates 36a or 36b of the separation unit 26.
5 shows a second embodiment as respectively shown a modified example of the separation unit 126, and a modified electrode device 156, and Figure 6 - containing modified their separation unit 124. Details of the separation assembly 126, the electrode device 156 and a separation unit 124, which correspond to parts of the separation assembly 26, electrode assembly 56 and the separation apparatus 24 of Figures 1-4 are designated by the same reference numerals with the addition of 100.
Separation unit 126 is different from the separation unit 26 primarily in that the gutters 144a, 144b protrude beyond the tip 146 of the separation unit 126. The projecting portions 172a, 172b correspond to the above trays 54a, 54b to drain from which for this reason in the separation device 124 can be dispensed with.
As seen in Figure 6, the projection portions 172a, 172b gutters 144a, 144b of the separation assembly 126 extend through respective breakthroughs 152a, 152b at each end wall 150a of the separation device 124.
5 shows a high voltage source 174, which is located between the side plates 136a, 136b of each separation assembly 126 and is connected to the electrode unit 156. Accordingly, the high voltage source 174 can have a separation at each node 26 according to the first structural example. Accordingly, a separate separation unit 126 and the separate electrode device 156 form a separation unit 176. Accordingly, each individual separation unit 26 and the separate electrode device 56 according to figures 1-4 form the separation module 76.
In addition, the spacer 5 is visible 178a, 178b, 178s that bottom, middle and top interconnect the inner surfaces of both side plates 136a, 136b of the separation unit 126.
The electrode device 156 according to the second structural example of a vertically between the electrode bars 158a, 158b of the first conductor 168 passes corona protective rail 180, through which reduces the risk of contact with the corona wires 168 to fall out of the tunnel 6 staining electrode device 156 objects or particles.
However, with respect to the above separation unit 26, the electrode assembly 56 and a separating device 24, respectively, and relates to a separation assembly 126, the electrode device 156 and a separation unit 124.
Next, the basic principle of the devices are explained above is explained by the example of the separation device 24 according to figures 1-4. Use of the separating apparatus 124 of Figures 5 and 6 in the dyeing chamber 2 occurs in a similar manner.
When painting car bodies in the tunnel coloring 6 located there the air chamber is saturated with particles of overspray lacquer. They may still be liquid and / or tacky, but also a more or less solid. Containing lacquer overspray air chamber through the lower opening 12 of the tunnel 6 staining enters separation space 18. There, the air air guide flaps 28a, 28b directed towards the separating device 24 and the separation occurs between adjacent nodes 26 in the direction of the lower air horn flap 32.
On the crown 68 conductors per se known manner, corona discharge occurs, whereby surplus spray particles in the air flowing past the camera effectively ionized.
The charged spray particles are grounded excess capacity on the housing side plates 36a, 36b of the two adjacent separation units 26 and extending between grid electrode 62 in the first portion 60 of the electrode device 56. In connection with the trellis formed between the electrode 62 and the side plates 32a, 32b by the electric field excess spraying ionized particles are deposited on the separation surfaces 42a, 42b of the side plates 36a, 36b of the separation units 26 and there they are absorbed flowing along the separation liquid.
Some excess sputtering of ionized particles already deposited on the second portion 66 of the electrode assembly 56 in the corona wire 68 to the nodes 26. However, the separation existing between the corona wires 68 and the corresponding side plate 36a, 36b of the separation unit 26, the electric field is more uniform, than the electric field in the region grid electrode 62, which is why it is more focused and more efficient separation of ionized particles in the appropriate excess spray a separation unit 26.
Purified by passing between the separation units 26, the air a lower air guide flap 32 is directed in the direction shown in Figures 1 and 2, the right side wall 22b of the separation space 18, from where it is, if necessary after a certain condition, it can be re-fed into the tunnel 6 staining as fresh air . In the case of air conditioning can be, above all, the adjustment of temperature, air humidity and, if necessary, removing still airborne solvents.
Drain to the separation units 26 and now containing particles excess spray liquid separation falls down in the gutters 44a, 44b of the separation units 26. Due to the slope of the gutters 44a, 44b saturated liquid separation flows towards breakouts 52a, 52b in the respective end walls 50a therethrough and from there through the trays 54a, 54b to drain into a collection trough 34. After collecting trough 34 containing particles of excess spray liquid separation stems from the chamber 2 and dye may be filed for cleaning and regeneration, in which the separation liquid is released from the particle spray surplus or removal.
7, reference symbol 1082 denotes a whole plant, with which the separation liquid is directed to the separation units 26, and comprising a lacquer overspray particle separation liquid is regenerated for reuse. Instead of the separation units 26 can also be provided separation units 126.
Set in 1082 contains 7 located on the left tank 1084, in which the mixture is mixed primary separation of the liquid, which contains all the ingredients, except obeskleivayuschey environment. To this end, the reservoir 1084 may be hydraulically connected with several barrels in which the individual components are supplied separating fluid. 7 show an example of two such barrels 1086a, 1086b, which, through isolation valves 1088a, 1088b pipes 1090a, 1090b are connected to the reservoir in 1084.
In addition, installation of 1082 contains another tank for 1092 obeskleivayuschey environment, which, for its part, through the isolation valves on the pipeline in 1094 in 1096 is connectable with a barrel in 1098, which comes obeskleivayuschaya Wednesday. Available barrels 1086a, 1086b and 1098 may be placed on the loading platform of the tank 1100. From 1084 to 1102 lead pipe flowlines 1104 which, for its part, in 1106 through the pipeline connected to the tank for 1092 obeskleivayuschey environment. The conduits 1102 and 1106 is set by a single pump 1108 or 1110, via which the contents of the corresponding reservoir 1084 or 1092 may be injected into the collecting dosed conduit 1104.
Prefabricated duct 1104 flows into the receiver 1112, which coming from the tank in 1084, and the base material originating from the reservoir 1092 obeskleivayuschaya Wednesday combined and mixed.
For its part, the receiver 1112 equipped with the pump 1114 on line 1116 communicates with the fine purification filter 1118, which itself is known. As it passes the fuel pump 1114 from the receiver liquid separation in 1112, which is equipped with a pump discharge conduit 1122 1120 leaves it again.
Downstream from the pump 1120 moves the bypass conduit 1124 that has a first portion 1126a, which leads to the entry itself known viscometer 1128, and portion 1126b, which leads from the outlet to the viscometer 1128 1104 flowlines.
In the first section 1126a of the bypass pipe installed in 1124 driven by a solenoid valve ISO 1132, which is powered by current from the energy supply and the viscometer 1128 1134 energy source. Additionally, energy source 1134 serves as a power source for the electromagnet 1136, administered valve 1138, which separates the collecting piping from the supply 1104 respectively used carrier fluid conduit 1140 connects two or conduit 1140, 1104 with each other. The conduit 1140 is in communication with an unillustrated tank, which stores the carrier fluid. Downstream from the connection to the bypass line extending from the filter 1124 1118 fine filter discharge line 1122 is connected to the supply line 1142, which is spring-loaded valve 1144. Supply line 1142 is divided into three branches 114ba, 1146b, 1146s, in which there are one check valve 1148a, 1148b, 1148s. Pipe sleeve 1146a, 1146b, 1146 to lead to the upper side of the separation unit 26.
Installation 1082 collectively comprises several supply lines with respective sleeves 1142 1146a, 1146b, 1146s, the number of which corresponds to a corresponding number of separation units 26, 24 of the separation device.
From the overflow trough 40 of each separation unit 26 is selected pipeline in 1150, which, for its part, has a shut-off valve in 1152, to the return line 1154. Return line 1154 flows into the upper space 1156 of the receiver 1112 is on its lower space 1158 is separated from the filter 1160 nonwoven. The filter 1160 of nonwoven material carried above the mirror located in the receiver 1112 and the separation of the liquid is in the form roller 1162 unwound from the tape. Hit the road filter 1160 of nonwoven material is received in the tank valve spring 1164. Between 1144 and pipe sleeves 1146a, 1146b, 1146 with the supply line 1142 is connected to another selective conduit 1166, in which the shut-off valve installed in 1168 and the return line which leads 1154. Sewage troughs 44a, 44b, 144a, 144b of each separation unit 26 by means of their own choice of the pipeline in 1170 are connected to the return line in 1154.
On the other side of the confluence of the supply line 1142 1122 discharge line leads through the return of land to the lower space of 1172 1158 1112 receiver, with the return to the site in 1172 set a spring-loaded shut-off valve in 1174.
The above-described installation 1082 operates as follows:
In the reservoir in 1084 or 1092 components in the desired proportions of gathering pipelines in 1104 transported to the lower space of the receiver 1158 1112. Available liquid separation there, along with freshly mixed portion also contains purified liquid separation that further details will be discussed again.
Located in the lower area of the receiver in 1158 1112 separation liquid passes through the filter of thin clearing of 1118 and 1142 a supply line with sleeves 1146a, 1146b and 1146 to be sent to the appropriate separation assembly 26.
By 1120 the pump downstream of the filter 1118 fine cleaning fluid is pumped from the separation performance, while a spring loaded valve which opens in inlet line 1144 in 1142, for example, 20 liters per minute.
By separating the supply line 1142 to the sleeve 1146a, 1146b, 1146s can be made incident on the fine adjustment of the corresponding discharge device 26 the number of the separation of the liquid. To this end flaps 1148a, 1148b, 1148s, respectively, are included so that the separation liquid discharge device is issued to 26 or one or two or all three conduits 1146a, 1146b, 1146s. If necessary, it may also be provided and more than three pipe 1146s sleeve valve 1148. For example, the liquid leaves the separation pipe sleeves 1146a, 1146b, 1146s at a rate of from 0.2 to 0.3 liters per minute. Consumption in the pipeline sleeve 1146a, 1146b, 1146s can be adjusted through their passage cross section, or using the valves 1148a, 1148b, 1148s, passage cross-section of which is adjustable.
If the pump performance in 1120 in relation to the action of the spring shutoff valve in the supply line 1144 in 1142 is too high, the spring-loaded shut-off valve is opened in 1174 in the return line 1172 and the separation fluid is pumped from the filter of thin clearing of 1118 in the circulation loop back to the lower space of the receiver 1112. For example 1158 , the check valve 1174 opens when the pressure on it is greater than 1 bar.
Using 1128 viscometer viscosity can be measured flowing from the filter 1118 fine cleaning liquid separation. For this, a solenoid valve 1132 so that the part coming from the fine purification filter 1118 falls on the separation liquid leaves Viscometer viscometer 1128. 1128 liquid separation at portion 1126b of the pipeline is fed back into a collecting conduit 1104 and through it back into the lower chamber 1158 of the receiver 1112. If the viscosity measurement indicates that the separation liquid has too high a viscosity, the solenoid valve 1138 may be opened, so that the corresponding carrier fluid from conduit 1140 enters the conduit assembly 1104 causing the liquid separation in the receiver 1112 diluted and its viscosity decreases.
If the viscosity of the separating liquid is too small, it can be increased by a corresponding change of the component supply barrels in which they are delivered.
Coming from the gutters 44a, 44b, 144a, 144b of the separation unit 26 containing lacquer overspray particle separation by selective fluid conduits 1170 and 1154 return line is directed into the upper space 1156 of the receiver 1112. There, under the influence of gravity, it passes through a filter 1160 The nonwoven material down into the lower chamber 1158 of the receiver 1112 in which it gets filtered and largely freed from the lacquer overspray particles. At the same time the contents of the separating liquid particles of overspray lacquer remains on the filter 1160 of nonwoven material. If available in the receiver 1112 filter portion 1160 of nonwoven material absorbed the maximum amount of particulate overspray paint and satisfactory result of filtering with an appropriate flow rate of the separation of liquid through the filter 1160 of nonwoven material is no longer ensured, the filter 1160 of nonwoven is unwound from roll 1162 until until unloaded portion of the filter 1160 of nonwoven material will not be separated from each other space 1156 and 1112. The 1158 receiver matches the lacquer overspray particles filter section 1160 of the non-woven material - as mentioned above - was adopted in 1164 in the collecting tank.
In case the filtering action of the filter 1160 of nonwoven material deteriorates over time, or, in principle, sufficient to delay also tiny particles are filtered out by filter 1118 fine filter, so that in the discharge conduit 1122 gets only substantially purified and unsaturated separation liquid, and thence to a separation assemblies 26.
By selective pipelines in 1150 and 1170 can be emptied pipes with sleeves 1142 1146a, 1146b, 1146s, and an overflow trough 40, 140 corresponding to the separation unit 26. It may be necessary, for example if you need to replace lo paratsionnuyu liquid.
By mounting the liquid separation 1082 may be used in the circulation circuit, wherein the separation device 24 arranged with the separation units 26. In this case, it is possible to release particles containing lacquer overspray separating liquid from and again supplied to the circulation circuit.
The following are examples of the separation of the liquid composition, which in practice proved to be suitable, with data in wt.% Related to the total weight of the respective separation liquid:
EXAMPLE 1
Water-based flowable liquid separation, which is suitable for the separation of solvents in lacquers or two-component lacquers, has the following composition:
62 wt.% Water;
35 wt.% Monoethylene glycol;
1 wt.% Fatty alcohol ethoxylate (7EO);
2 wt.% Of 2-methylpentamethylenediamine.
EXAMPLE 2
Water-based flowable liquid separation, which is suitable for separation of water-borne paints has the following composition:
62 wt.% Water;
35 wt.% Monoethylene glycol;
2 wt.% Zinc sulfate heptahydrate;
0.7 wt.% Fatty alcohol ethoxylate (7EO);
0.3 wt.% Didetsildiammoniyhlorid.
EXAMPLE 3
Water-based viscous liquid separation, which showed good results in the separation of solvents in lacquers and 2-component lacquers, has the following composition:
64.25 wt.% Water;
0.75 wt.% Carboxymethyl cellulose;
32 wt.% Monoethylene glycol;
05 wt.% Fatty alcohol ethoxylate (7EO);
2.5 wt.% Of 2-methylpentamethylenediamine.
EXAMPLE 4
Water-based viscous liquid separation, which showed good results in the separation of water-borne paints has the following composition:
62 wt.% Water;
35 wt.% Monoethylene glycol;
2 wt.% Zinc sulfate heptahydrate;
0.3 wt.% Fatty alcohol ethoxylate (7EO);
05 wt.% Of cellulose (natrozol HHR 250);
0.2 wt.% Didetsildiammoniyhlorid.
EXAMPLE 5
Based on the oil separation liquid, which showed good results in the separation of solvents in lacquers and 2-component lacquers, has the following composition:
83 wt.% Oil primer 100/40 ° C;
14.5 wt.% Oleic acid;
2.5 wt.% Of 2-methylpentamethylenediamine.
EXAMPLE 6
Based on the oil separation pasty fluid which showed good results in the separation of solvents in lacquers and 2-component lacquers, it has the following composition:
90 wt.% Oil primer 120/40 ° C;
3.5 wt.% Castor oil;
3.5 wt.% Hydroxystearic acid;
1.2 wt.% Lithium hydroxide;
1.8 wt.% Of 2-methylpentamethylenediamine.
Contents6
7 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7
Every citation, both waysCites: the store holds 3 of 4
| Document | Relation | Office | Cited during |
|---|---|---|---|
| RU2675911C2 | Cited by | Russian Federation | Search report |
| GB2400052A | Cites | United Kingdom | – |
| US5843337A | Cites | United States of America | – |
| SU294851A1 | Cites | Soviet Union (until 1991) | – |
| SU 294851 A1,04.02.1971 | Non-patent | – | – |
23 members in 12 offices
Priority claims9
| Document | Office | Kind | Date |
|---|---|---|---|
| 102008046409 | Germany | A | |
| 102008046409 | Germany | A | |
| 1020080464090 | Germany | – | |
| 2009005863 | European Patent Office (EPO) | W | |
| 2009005863 | European Patent Office (EPO) | W | |
| 1020080464090 | – | – | – |
| DE20081046409 | – | – | – |
| EP2009005863 | – | – | – |
| WO2009EP05863 | – | – | – |
Members23
| Document | Office | Kind | |
|---|---|---|---|
| CA2736791A1 | Canada | A1 | |
| WO2010025810A1 | World Intellectual Property Organization (WIPO) | A1 | |
| DE102008046409A1 | Germany | A1 | |
| DE102008046409B4 | Germany | B4 | |
| EP2324086A1 | European Patent Office (EPO) | A1 | |
| MX2011002428A | Mexico | A | |
| CN102144005A | China | A | |
| US2011226127A1 | United States of America | A1 | |
| ZA201101010B | South Africa | B | |
| JP2012501818A | Japan | A | |
| RU2011112447A | Russian Federation | A | |
| DE102008046409C5 | Germany | C5 | |
| US8545600B2 | United States of America | B2 | |
| CN102144005B | China | B | |
| RU2523309C2This record | Russian Federation | C2 | |
| JP5576378B2 | Japan | B2 | |
| UA106970C2 | Ukraine | C2 | |
| BRPI0918077A2 | Brazil | A2 | |
| EP2324086B1 | European Patent Office (EPO) | B1 | |
| EP3162862A1 | European Patent Office (EPO) | A1 | |
| CA2736791C | Canada | C | |
| EP3162862B1 | European Patent Office (EPO) | B1 | |
| BRPI0918077B1 | Brazil | B1 |
1 legal event, as the office reported them to INPADOC
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| The patent is invalid due to non-payment of feesMM4A | MM4A |
Numbers
- Publication
- 0002523309
- Publication, DOCDB
- 2523309
- Publication, EPODOC
- RU2523309
- Application
- 201111244705
- Application, DOCDB
- 2011112447
- Application, EPODOC
- RU20110112447
Titles2
- Russian
- СПОСОБ СЕПАРАЦИИ ИЗБЫТОЧНО РАСПЫЛЕННОГО ЛАКА И СЕПАРАЦИОННАЯ ЖИДКОСТЬ
- English
- SEPARATION OF EXCESSIVELY SPRAYED LACQUER AND SEPARATION FLUID
Classification
- CPC, 6
- B03C3/017
- B05B14/42
- B05B14/462
- C09D7/71
- B03C3/16
- Y02P70/10
- IPC, 6
- C09D7 12
- B05B15 12
- B05B14 42
- B05B14 462
- C09D7 00
- C09D7 45