CN201921763U - Fluidized ejector for electrostatic spraying - Google Patents
Fluidized ejector for electrostatic spraying Download PDFInfo
- Publication number
- CN201921763U CN201921763U CN 201020648787 CN201020648787U CN201921763U CN 201921763 U CN201921763 U CN 201921763U CN 201020648787 CN201020648787 CN 201020648787 CN 201020648787 U CN201020648787 U CN 201020648787U CN 201921763 U CN201921763 U CN 201921763U
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- Prior art keywords
- fluidisation
- powder
- case
- jet box
- electrostatic spraying
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000007590 electrostatic spraying Methods 0.000 title claims abstract description 22
- 238000005243 fluidization Methods 0.000 claims abstract description 121
- 239000000843 powder Substances 0.000 claims abstract description 70
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005507 spraying Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000003973 paint Substances 0.000 description 5
- 238000010410 dusting Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
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- 229920001778 nylon Polymers 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000675108 Citrus tangerina Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
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- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
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Abstract
The embodiment of the utility model provides a fluidization type sprayer for electrostatic spraying, a fluidization type sprayer for electrostatic spraying comprises fluidization case and injection case, supplies powder equipment can constantly provide the powder to the fluidization incasement, and the powder is earlier fluidization at the fluidization incasement, and the powder after the fluidization gets into the injection case afterwards and is ionized into charged particle, through the blowout of injection case export again, adsorbs at last to be scribbled the substrate on the surface. The embodiment of the utility model has simple principle, can realize the uniform powder spraying in the width direction of the coated substrate, and is suitable for the spraying production of high-speed coiled materials; the ejector has the advantages of simple structure, easy processing and manufacturing, convenient operation, convenient maintenance and low investment and use cost, thereby having good popularization and application prospect.
Description
Technical field
The utility model relates to electrostatic spraying, relates in particular to a kind of fluidisation formula injector that is used for electrostatic spraying.
Background technology
Powdery paints has very big space to coiled material, films as perforation and embossing metal, high thickness, decorative pattern etc.; In addition, hardness, pliability, scratch resistance and chemical-resistant can both be improved.The coiled material of precoating is in production efficiency and quality, and particularly feature of environmental protection aspect has bigger advantage than the coiled material that is coated with after in a conventional manner.
Powder coating can be the coating of dusting, and as the conventional electrostatic spraying process, also alternate manner is as EMB (the Electro Magnetic Brush) technology of electromagnetic brush mode, transmit the powder mode
Technology.The technology that applies of dusting at present mainly contains:
(1) electrostatic spray.
Form a high-voltage corona discharge electric field between spray gun and the workpiece, when powder particle by the gun slot ejection during through region of discharge, be ionized to and be electronegative particle, under the effect of electrostatic attraction, be adsorbed to positively charged workpiece and get on.
Because spray gun is to utilize " point source " discharge, therefore be pulled away during in the base material high-speed mobile at powdery paints under the high linear speed situation, its deposition efficiency has only 40%-50%; And spray gun arranges intensively, and the thickness that electrostatic spraying is filmed is wayward, also is prone to other paint film defect, as pit, tangerine peel etc.
(2) friction electrostatic painting method.
The friction rifle does not need HV generator, and the charged and electrostatic field of powder produces by friction.When powder under the compressed air delivery that purifies through by the friction rifle of the negative material system of forceful electric power the time, just friction takes place and the lotus that becomes positively charged with rifle body inwall, formed a space electric field behind the charged powder ejection muzzle, electric-field intensity be decided by powder the geometry of electrically charged density and electric field, charged powder mainly sprays to each position of workpiece under the promotion of air stream, and with good the adhering to of surface of the work, thereby form dense coating, film forming after solidifying.
It is safer to utilize the friction powder-spraying rifle to spray, no metal electrode in the friction powder-spraying rifle, spark discharge that electric pole short circuit causes can not appear in spraying and the primary mixture that ignites, can not appear at accumulated powder phenomenon on the electrode, also just avoid coming off of accumulated powder on the electrode, guaranteed bisque any surface finish and smooth.But because of relying on frictional electrification, the service life of spray gun is short, and the powder belt electric weight is also inadequate, is difficult to realize the high speed coating of coiled material, all compares strictness to the triboelectric effect of powder kind and to source of the gas, environment requirement, thereby has limited its range of application.
The utility model content
The utility model embodiment provides a kind of fluidisation formula injector that is used for electrostatic spraying, to dust uniformly on the realization substrate to be coated width, is applicable to high speed coiled material spraying production.
On the one hand, the utility model embodiment provides a kind of fluidisation formula injector that is used for electrostatic spraying, the described fluidisation formula injector that is used for electrostatic spraying is made up of fluidisation case and jet box, can constantly in the fluidisation case, provide powder for powder equipment, powder is fluidisation in the fluidisation case earlier, powder after the fluidisation enters jet box subsequently and is ionized to charged particle, through jet box outlet ejection, is adsorbed onto at last on the substrate to be coated surface again.
Optionally, in an embodiment of the present utility model, the fluidisation case is the cuboid thin-walled pressure vessel, and upper surface has rectangular opening, and the powder after the fluidisation enters in the jet box from this rectangular opening.
Optionally, in an embodiment of the present utility model, place a fluidisation plate in the fluidisation case, the fluidisation plate thickness is 10～15mm, the some blocks of welding on the fluidisation chamber interior wall, the location that is used for fluidisation plate in the vertical direction, fluidisation plate and the fixed connection and sealing of fluidisation chamber interior wall are to be divided into the fluidisation case up and down two independently inner chambers.
Optionally, in an embodiment of the present utility model, the fluidisation plate with the fluidisation case be divided into up and down two independently be equipped with on the top internal chamber wall in the inner chamber some for the powder joints, for powder joint one termination for tube cell, the other end leads to the inner chamber of fluidisation case, provides powder for tube cell in the fluidisation case.
Optionally, in an embodiment of the present utility model, the fluidisation plate is divided into up and down two with the fluidisation case and independently on the following internal chamber wall in the inner chamber some air connectors is housed, air connector one termination compressed air, the other end leads to the inner chamber of fluidisation case, and compressed air makes the powder in the fluidisation upper box part inner chamber be in the state that is fluidized as fluidized gas.
Optionally, in an embodiment of the present utility model, jet box is the cuboid container, and lower surface has oblong openings, and slightly more a little bit smaller than the opening of fluidisation case, the powder after the fluidisation enters in the jet box from this oblong openings; Powder sprays injector by the spray seam of jet box at last; Near spray seam place, along the substrate to be coated width wire electrode that can conduct electricity is installed in jet box, the high-voltage output line of electrode wire connection electrostatic generator, powder are ionized into the powder particle of static electrification by wire electrode before the ejection injector.
Optionally, in an embodiment of the present utility model, wire electrode has tensioning apparatus; Jet box tank wall, tensioning apparatus are made by hard insulation, to avoid the discharge of wire electrode and peripheral conductor.
Optionally, in an embodiment of the present utility model, the spray of jet box seam opening degree is 1～8mm, and the height that spray is sewn on the vertical substrate to be coated direction is 5～15mm; It is that the compressed air of 0.2～0.5MPa is as fluidized gas that air connector feeds pressure; Injector spray seam place is 200～350mm apart from the vertical range on substrate to be coated surface; The wire electrode diameter is Φ 0.25～1mm, and the electrostatic generator voltage request is 25～60kV.
Optionally, in an embodiment of the present utility model, wire electrode is one or more, and wire electrode is installed in the jet box spray seam, or is installed in the outlet of spray seam and makes powder discharge again behind the ejection injector.
Optionally, in an embodiment of the present utility model, the jet box on the fluidisation case has side by side two or more.
Technique scheme has following beneficial effect: because adopt fluidisation formula injector to be made up of fluidisation case and jet box, can constantly in the fluidisation case, provide powder for powder equipment, powder is fluidisation in the fluidisation case earlier, powder after the fluidisation enters jet box subsequently and is ionized to charged particle, again through jet box outlet ejection, be adsorbed onto the lip-deep technological means of substrate to be coated at last, so it is simple to have reached principle, and can realize evenly dusting on the substrate to be coated width, be applicable to high speed coiled material spraying production; Emitter construction is simple, is easy to processing and manufacturing, is convenient to operation, and maintenance maintenance is convenient, and investment is very low with use cost, therefore possesses good prospect for promotion and application.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of fluidisation formula injector cross-sectional view that is used for electrostatic powder coating of the utility model embodiment;
Fig. 2 faces structural representation for a kind of fluidisation formula injector that is used for electrostatic powder coating of the utility model embodiment;
Fig. 3 is used for the fluidisation formula injector left side TV structure schematic diagram of electrostatic powder coating for the utility model embodiment is a kind of.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the fluidisation formula injector cross-sectional view that is used for electrostatic powder coating for the utility model embodiment is a kind of, this fluidisation formula injector is made up of fluidisation case 1 and jet box 2, can constantly in fluidisation case 1, provide powdery paints for powder equipment, powder is fluidisation in fluidisation case 1 earlier, powder after the fluidisation enters jet box 2 subsequently and is ionized to charged particle, through jet box 2 outlet ejections, is adsorbed onto at last on substrate to be coated 3 surfaces again.
It is 1～8mm that 8 opening degrees are stitched in the spray of jet box 2, and the height of spray seam 8 on vertical substrate to be coated 3 directions is 5～15mm; It is that the compressed air of 0.2～0.5MPa is as fluidized gas that air connector 7 feeds pressure; Injector spray seam 8 places are 200～350mm apart from the vertical range on substrate to be coated 3 surfaces; Wire electrode 9 diameters are Φ 0.25～1mm, and the electrostatic generator voltage request is 25～60kV.
As shown in Figure 2, the fluidisation formula injector that is used for electrostatic powder coating for the utility model embodiment is a kind of is faced structural representation, as shown in Figure 3, is used for the fluidisation formula injector left side TV structure schematic diagram of electrostatic powder coating for the utility model embodiment is a kind of.Fluidisation case 1 is of a size of 1300mm * 400mm * 400mm, and fluidisation case 1 is welded by the steel plate of thick 5mm, and upper surface open is 900mm * 140mm; Fluidisation plate 4 thickness are 10mm, and fluidisation plate 4 is divided into up and down two independently inner chambers with fluidisation case 1, and wherein the lower lumen height is 100mm; For powder joint 6 totally 8,125mm at interval is apart from fluidisation case 1 bottom surface 150mm; Totally 8 of air connectors 7, interval 125mm, apart from fluidisation case 1 bottom surface 50mm, air connector 7 is quick connector (a modular, pneumatically powered original paper), a termination flexible pipe, the pressure of flexible pipe compressed air are 0.3MPa.
Open Φ 1mm through hole on 2 two side plates of jet box, and the copper wire that passes a Φ 0.5mm is as wire electrode 9, wire electrode 9 one ends are killed knot, and the other end is fixed on the rotary tensioning apparatus 10, can be with wire electrode 9 tensionings by rotating rotary tensioning apparatus 10; Being coated with fluid sealant in Φ 1mm through hole sprays from the hole to prevent powder; Wire electrode 9 is connected with the electrostatic generator high-voltage output line, and electrostatic generator voltage is 30kV; Injector spray seam 8 places are 250mm apart from the vertical range on substrate to be coated 3 surfaces.
Need to prove; some technological improvements of carrying out according to the thinking of the utility model embodiment; for example; use two or several wire electrode discharges; wire electrode 9 is installed in the jet box 2 spray seams 8 or is installed in 8 outlets of spray seam and makes powder discharge again behind the ejection injector; two or more jet boxs 2 are side by side arranged on the fluidisation case 1, or the like, these all belong to protection domain of the present utility model.
The utility model embodiment mainly realizes following two purposes: (1) is implemented on the substrate to be coated width and dusts uniformly; (2) adopt " line source " discharge type ionization powder particle, make charged particle can pass the air stream of substrate to be coated apparent motion, be applicable to high-velocity spray.The utility model embodiment has the following advantages and good effect: principle is simple, and can realize evenly dusting on the substrate to be coated width, is applicable to high speed coiled material spraying production; Emitter construction is simple, is easy to processing and manufacturing, is convenient to operation, and maintenance maintenance is convenient, and investment is very low with use cost, therefore possesses good prospect for promotion and application.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct related hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, comprise above-mentioned all or part of step, described storage medium, as: ROM/RAM, disk, CD etc.
The above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a fluidisation formula injector that is used for electrostatic spraying is characterized in that, the described fluidisation formula injector that is used for electrostatic spraying is made up of fluidisation case (1) and jet box (2), wherein:
Fluidisation case (1), the powder that is used for constantly providing in fluidisation case (1) for powder equipment carries out fluidisation in fluidisation case (1), and the powder after the fluidisation enters jet box (2) subsequently;
Jet box (2) is used for the powder after the fluidisation is ionized into charged particle, through jet box (2) outlet ejection, is adsorbed onto at last on substrate to be coated (3) surface again.
2. be used for the fluidisation formula injector of electrostatic spraying according to claim 1, it is characterized in that, fluidisation case (1) is the cuboid thin-walled pressure vessel, and upper surface has rectangular opening, and the powder after the fluidisation enters in the jet box (2) from this rectangular opening.
3. as being used for the fluidisation formula injector of electrostatic spraying as described in the claim 2, it is characterized in that, place a fluidisation plate (4) in the fluidisation case (1), fluidisation plate (4) thickness is 10～15mm, welding some blocks (5) on fluidisation case (1) inwall, the location that is used for fluidisation plate (4) in the vertical direction, fluidisation plate (4) and fluidisation case (1) inwall fixed connection and sealing are to be divided into fluidisation case (1) up and down two independently inner chambers.
4. as being used for the fluidisation formula injector of electrostatic spraying as described in the claim 3, it is characterized in that, fluidisation plate (4) is divided into up and down two with fluidisation case (1) and independently is equipped with on the top internal chamber wall in the inner chamber some for powder joints (6), supply tube cell for powder joint (6) one terminations, the other end leads to the inner chamber of fluidisation case (1), provides powder for tube cell in fluidisation case (1).
5. as being used for the fluidisation formula injector of electrostatic spraying as described in the claim 4, it is characterized in that, fluidisation plate (4) is divided into up and down two with fluidisation case (1) and independently on the following internal chamber wall in the inner chamber some air connectors (7) is housed, air connector (7) one termination compressed air, the other end leads to the inner chamber of fluidisation case (1), and compressed air makes the powder in the inner chamber of fluidisation case (1) top be in the state that is fluidized as fluidized gas.
6. as being used for the fluidisation formula injector of electrostatic spraying as described in the claim 5, it is characterized in that jet box (2) is the cuboid container, lower surface has oblong openings, opening than fluidisation case (1) is slightly a little bit smaller, and the powder after the fluidisation enters in the jet box (2) from this oblong openings; Powder sprays injector by the spray seam (8) of jet box (2) at last; In jet box (2), locate near spray seam (8), the wire electrode (9) that can conduct electricity is installed along substrate to be coated (3) width, wire electrode (9) connects the high-voltage output line of electrostatic generator, and powder is ionized into the powder particle of static electrification by wire electrode (9) before the ejection injector.
7. as being used for the fluidisation formula injector of electrostatic spraying as described in the claim 6, it is characterized in that wire electrode (9) has tensioning apparatus (10); Jet box (2) tank wall, tensioning apparatus (10) are made by hard insulation, to avoid the discharge of wire electrode (9) and peripheral conductor.
8. as being used for the fluidisation formula injector of electrostatic spraying as described in the claim 6, it is characterized in that spray seam (8) opening degree of jet box (2) is 1～8mm, spray seam (8) height on vertical substrate to be coated (3) direction is 5～15mm; It is that the compressed air of 0.2～0.5MPa is as fluidized gas that air connector (7) feeds pressure; The vertical range that injector spray seam (8) is located apart from substrate to be coated (3) surface is 200～350mm; Wire electrode (9) diameter is Φ 0.25～1mm, and the electrostatic generator voltage request is 25～60kV.
9. as being used for the fluidisation formula injector of electrostatic spraying as described in the claim 6, it is characterized in that,
Wire electrode (9) is one or more, and wire electrode (9) is installed in jet box (2) the spray seam (8), or is installed in spray seam (8) outlet and makes powder discharge again behind the ejection injector.
10. as being used for the fluidisation formula injector of electrostatic spraying as described in the claim 6, it is characterized in that,
Jet box (2) on the fluidisation case (1) has side by side two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020648787 CN201921763U (en) | 2010-12-08 | 2010-12-08 | Fluidized ejector for electrostatic spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020648787 CN201921763U (en) | 2010-12-08 | 2010-12-08 | Fluidized ejector for electrostatic spraying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201921763U true CN201921763U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020648787 Expired - Lifetime CN201921763U (en) | 2010-12-08 | 2010-12-08 | Fluidized ejector for electrostatic spraying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201921763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992158A (en) * | 2010-12-08 | 2011-03-30 | 中冶京诚工程技术有限公司 | Fluidized ejector for electrostatic spraying |
| CN109550609A (en) * | 2018-12-27 | 2019-04-02 | 江苏变色龙微粉技术有限公司 | Flying reel powder spraying device and its working method and powder coating production line |
-
2010
- 2010-12-08 CN CN 201020648787 patent/CN201921763U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992158A (en) * | 2010-12-08 | 2011-03-30 | 中冶京诚工程技术有限公司 | Fluidized ejector for electrostatic spraying |
| CN101992158B (en) * | 2010-12-08 | 2012-03-21 | 中冶京诚工程技术有限公司 | Fluidized ejector for electrostatic spraying |
| CN109550609A (en) * | 2018-12-27 | 2019-04-02 | 江苏变色龙微粉技术有限公司 | Flying reel powder spraying device and its working method and powder coating production line |
| CN109550609B (en) * | 2018-12-27 | 2023-10-24 | 江苏变色龙微粉技术有限公司 | High-speed coiled material powder spraying device, working method thereof and powder spraying production line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110810 Effective date of abandoning: 20120321 |