CN105499040A - Multistage paint mist trapping device and method for trapping and separating overspray matters - Google Patents
Multistage paint mist trapping device and method for trapping and separating overspray matters Download PDFInfo
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- CN105499040A CN105499040A CN201610011209.7A CN201610011209A CN105499040A CN 105499040 A CN105499040 A CN 105499040A CN 201610011209 A CN201610011209 A CN 201610011209A CN 105499040 A CN105499040 A CN 105499040A
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- coating cloud
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- 239000011248 coating agent Substances 0.000 claims description 371
- 238000000576 coating method Methods 0.000 claims description 371
- 239000007921 spray Substances 0.000 claims description 140
- 239000000835 fiber Substances 0.000 claims description 50
- 230000008569 process Effects 0.000 claims description 27
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- 238000001914 filtration Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 6
- 240000002853 Nelumbo nucifera Species 0.000 claims description 4
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 4
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- 239000002657 fibrous material Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 15
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- 229920000742 Cotton Polymers 0.000 description 1
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- 239000007789 gas Substances 0.000 description 1
- UYTPUPDQBNUYGX-UHFFFAOYSA-N guanine Chemical compound O=C1NC(N)=NC2=C1N=CN2 UYTPUPDQBNUYGX-UHFFFAOYSA-N 0.000 description 1
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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
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
The invention provides a multistage paint mist trapping device and a dry paint spraying system applying the same. The paint mist trapping device is characterized in that at least two types of paint mist trapping units are arranged in the paint mist trapping device and are vertical to the air main flow direction; each paint mist trapping unit is in a full slice structure and covers the flow area of air; the external dimensions of different types of paint mist trapping units are the same; standard clamp slots are formed in the paint mist trapping device; any one type of paint mist trapping unit can be arranged in any one standard clamp slot. The multistage paint mist trapping device has the advantages that through the standardized design, the types of the paint mist trapping units in the paint mist trapping device can be adjusted according to the difference of the particle characteristics of overspray matters, so that each paint mist trapping unit in the paint mist trapping device bears load and three-dimensional paint mist trapping and accommodation space is formed in the inner space of the whole paint mist trapping device, thus greatly improving the paint mist trapping and accommodation capacities and separating effects of the paint mist trapping device.
Description
Technical field
The present invention relates to industrial coating field, particularly relate to the trapping of spray coated spray thing and be separated and assembling sphere, specifically relate to a kind of multi-stag coating cloud capturing device, be widely used in the applications such as automobile, five metals, household electrical appliances, toy.
Background technology
Along with developing rapidly of China's economic, environmental pollution becomes more and more serious.In China's most area, the mankind are to air, and the pollution of soil and water is far beyond natural ability to bear.Recently some years, haze takes place frequently, and water pollutions and soil pollution also become more and more serious.Application is the industry of a high pollution, highly energy-consuming.In painting process, a large amount of waste gas, waste liquid and solid waste can be produced.In order to maintain the condition of the constant temperature and humidity required for application, also need to consume a large amount of electric energy and fossil fuel.
Traditional application is crossed spray thing isolation technics and is mainly divided into dry type and wet type two kinds.The form trapping of what traditional dry type paint spraying system mainly adopted is coating cloud filter felt is separated coating cloud, as shown in Figure 1, be pure single layer filter technology, be easy to cause the local of filtering material saturated and block, very limited to the seizure carrying capacity of coating cloud, need frequent replacing coating cloud filter felt.Change filter felt continually to need to stop production, not only increase filtering material and artificial consumption, also occupies a large amount of production times, enterprise's production cost is high, and solid waste is many.Secondly, this technology is also very limited to the separating effect of coating cloud, and the air after separation still containing a certain amount of coating cloud, not only can not meet the quality requirement that air recycles, but also there is larger security against fire hidden danger.So conventional dry technology can only be applied in small lot, step spraying operation, be difficult to use in the industrial production of serialization in enormous quantities.Traditional wet type venturi or wet type water-screen cabinet technology, although can realize being continuously separated coating cloud, can meet the needs of working continuously in enormous quantities, this technology can produce a large amount of waste gas, waste water and waste liquids, need the air consuming constant temperature and humidity fresh in a large number, energy consumption is high.Although the production line of part wet type water-washing technique have employed the technology of circulated air, reduce the consumption of fresh wind and the amount of waste gas, but the air humidity be through after venturi washing is very large, temperature is low, just can recycle after needing dehumidifying and heating, the energy consumption of dehumidifying and heating is also very high, and this circulating wind technology also needs to consume a large amount of energy consumptions.
More external companies also have developed some dry type isolation technics in recent years, such as utilize auxiliary material to reduce the viscosity of spray thing, then by filtering technique separating solids and gas, this technology needs to add a large amount of auxiliary material, considerably increases the amount of solid waste.Ye You company adopts electrostatic coating cloud isolation technics, but this technology has separation module easily to be crossed the adhesion of spray thing and is difficult to the problem of removing.In addition, these equipment all complex structures, expensive, only there is application at some high-end production lines at present, be difficult to be commonly used.
Also some new dry type isolation technics announcement in nearly 2 years, such as with mazy structure that publication No. CN103930185A is representative.The coating cloud catch of this kind of structure is all on the path that the air carrying spray thing advances, arrange many row's coating cloud capture unit, crosses spray thing to stop in interception air.Although the coating cloud capturing device of this kind of distribution form has increased significantly relative to the trapping carrying capacity of form to coating cloud of traditional coating cloud absorption felt, but the coating cloud capturing device of this kind of structure comprises a lot of coating cloud capture unit, the manufacture difficulty of coating cloud capture unit is large, the assembling length consuming time of coating cloud capturing device, and the coating cloud capturing device of this kind of structure is only in the windward side of coating cloud capture unit, and interception had adhered to spray thing, spray thing was not almost had by Adhesion catching in the both sides of coating cloud capture unit and lee face, coating cloud capture unit reaches trapping when receiving the limit, a large amount of spaces is still had not to be utilized between coating cloud capture unit.The existence of air flow passage large between coating cloud capture unit also makes the coating cloud catch of this kind of form be difficult to catch those little and light spray composition granules excessively.
Summary of the invention
An object of the present invention be in order to overcome above-mentioned prior art exist defect and a kind of multi-stag coating cloud capturing device is provided.This coating cloud capturing device is strong to the trapping ability of coating cloud, good separating effect, and trapping carrying capacity is large.In addition, this coating cloud capturing device is independent monomer, and it is convenient to change, and safeguards easily.
Two of object of the present invention provides a kind of dry type paint spraying system with above-mentioned multi-stag coating cloud capturing device to overcome defect that above-mentioned prior art exists, and this paint spraying system structure is simple, dependable performance, energy-conserving and environment-protective.
Three of object of the present invention crosses the method that spray thing distribution adjusts the coating cloud capture unit type of arranging in new coating cloud capturing device in order to overcome in coating cloud capturing device that defect that above-mentioned prior art exists provides a kind of basis to change, the method can according to the distribution crossing spray thing in the coating cloud capturing device changed the further coating cloud capture unit type of preferred arrangement in new coating cloud capturing device, each coating cloud capture unit is made all to undertake lotus, make full use of the solid space in coating cloud capturing device, degree improves coating cloud capturing device to the trapping carrying capacity of coating cloud and separating effect to greatest extent.
An object of the present invention can be achieved through the following technical solutions:
A kind of disposable multi-stag coating cloud capturing device, for trapping the spray thing excessively produced in split spray process, coating cloud capturing device comprises the crust of the device limiting inlet air flow path, coating cloud dust trapping chamber, air intake, air outlet slit, coating cloud capture unit is furnished with in coating cloud dust trapping chamber, it is characterized in that: in coating cloud capturing device, arrange at least two coating cloud capture unit, coating cloud capture unit is arranged perpendicular to air main flow direction, and coating cloud capture unit is monolithic structure and the flow area of each coating cloud capture unit covering air.
Further, the invention provides a kind of disposable multi-stag coating cloud capturing device, such feature can also be had: described coating cloud capture unit is arranged in parallel and leaves gap therebetween.
Further, the invention provides a kind of disposable multi-stag coating cloud capturing device, can also have such feature: described coating cloud capture unit has at least two types, the thickness of dissimilar coating cloud capture unit fiber is different with the layout density of fiber.
Further, the invention provides a kind of disposable multi-stag coating cloud capturing device, such feature can also be had: the appearance and size of described coating cloud capture unit is identical.
Further, the invention provides a kind of disposable multi-stag coating cloud capturing device, such feature can also be had: described coating cloud capture unit is corrugated plate shape structure.
Further, the invention provides a kind of disposable multi-stag coating cloud capturing device, such feature can also be had: described coating cloud capture unit is plate-like structure.
Further, the invention provides a kind of disposable multi-stag coating cloud capturing device, such feature can also be had: the material of described coating cloud capture unit is fibrous material.
Further, the invention provides a kind of disposable multi-stag coating cloud capturing device, such feature can also be had: the layout density of the fiber of described coating cloud capture unit increases gradually along the main flow direction of air.
Further, the invention provides a kind of disposable multi-stag coating cloud capturing device, such feature can also be had: the standard draw-in groove being provided with fixing coating cloud capture unit in described coating cloud capturing device.
Two of object of the present invention can be achieved through the following technical solutions:
The invention provides a kind of dry type paint spraying system, for to being sprayed by spray and trapping isolated spray thing, such feature can also be had: use the disposable multi-stag coating cloud capturing device described in above-mentioned any one as the parts of the isolated spray thing of trapping, be arranged on the exhaust outlet place of paint spraying system, trapping is separated the spray thing excessively of discharging in air.
Three of object of the present invention can be achieved through the following technical solutions:
Trap the method crossing spray thing produced in split spray process, the process of the method is as follows: the air carrying spray thing is directed to above-mentioned multi-stag coating cloud capturing device place and enters coating cloud capturing device by the air intake of coating cloud capturing device; Contained the coating cloud capture unit that in coating cloud capturing device at least two of air of spray thing are dissimilar, the coating cloud in air is captured separations, and the air after the trapping of coating cloud capture unit is separated is discharged by air outlet slit after whole filter course filtration again; Coating cloud capturing device takes out coating cloud capturing device and also observes the distribution crossing spray thing in coating cloud capturing device after reaching its trapping accommodation limit; According to the type of the coating cloud capture unit of arranging in the coating cloud capturing device that the distribution optimization of crossing spray thing is new.
Further, the invention provides a kind of method crossing spray thing produced in split spray process, such feature can also be had: described coating cloud capturing device is disposable product, each coating cloud capturing device needs to be replaced with new coating cloud capturing device after reaching the trapping accommodation limit.
Further, the invention provides a kind of method crossing spray thing produced in split spray process, such feature can also be had: the standard draw-in groove being provided with fixing coating cloud capture unit in coating cloud capturing device, the appearance and size of dissimilar coating cloud capture unit is identical, and dissimilar coating cloud capture unit can be arranged among any one standard draw-in groove.
Further, the invention provides a kind of method crossing spray thing produced in split spray process, such feature can also be had: according to the type crossing the coating cloud capture unit of distribution preferred arrangement in new coating cloud capturing device of spraying thing in the coating cloud capturing device taken out.
Further, the invention provides a kind of method crossing spray thing produced in split spray process, such feature can also be had: by optimizing the type of the coating cloud capture unit of arranging in coating cloud capturing device, make each coating cloud capture unit in coating cloud capturing device all undertake lotus.
Compared with prior art, the present invention has following beneficial effect:
According to multi-stag coating cloud capturing device provided by the invention, coating cloud capture unit is monolithic structure and each coating cloud capture unit covers the flow area of air, greatly reduce the quantity of coating cloud capture unit, the making of coating cloud capture unit and the assembling of coating cloud capturing device are more prone to.
According to multi-stag coating cloud capturing device provided by the invention, coating cloud capture unit is monolithic structure and each coating cloud capture unit covers the flow area of air, fibre placement density in leading portion coating cloud capture unit is rarer, in disorder fiber can not only cross spray thing by adhesion section, and the large space between fiber can ensure again the property passed through of air.This sparse fiber layout structure can make spray thing trap each position adhering to coating cloud capture unit equably, the inner space trapping of final whole coating cloud capture unit adheres to completely crosses spray thing, the coating cloud capture unit layout covering the full wafer of air circulation cross-section can substantially increase again coating cloud capturing device inner space utilization rate, improves coating cloud capturing device to the trapping carrying capacity crossing spray thing.
According to multi-stag coating cloud capturing device provided by the invention, the fibre placement density of the coating cloud capture unit of the leading portion setting of coating cloud capturing device is less, and the aperture between fiber is larger.The coating cloud capture unit of this distribution form can trap a part and bumps against the fiber of coating cloud capture unit and adhere to fiber it crosses spray composition granule, part can be made again to cross spray composition granule by this coating cloud capture unit, flow to coating cloud capture unit below, load between each coating cloud capture unit balanced, improves whole coating cloud capturing device to the trapping carrying capacity crossing spray thing.
According to multi-stag coating cloud capturing device provided by the invention, several coating cloud capture unit is arranged in parallel and leaves gap therebetween, the air that gap between coating cloud capture unit can make to carry spray thing carries out current-sharing before a coating cloud capture unit after entering, this design can avoid the trapping effect being positioned at region, blocking position dead astern affecting next coating cloud capture unit because of the local location blocking of previous coating cloud capture unit, each position of all coating cloud capture unit is made all to undertake lotus, improve the uniformity of spray thing distribution, improve coating cloud capturing device to the trapping carrying capacity crossing spray thing.
According to multi-stag coating cloud capturing device provided by the invention, the appearance and size of coating cloud capture unit is identical and in coating cloud capturing device, be furnished with standard draw-in groove supporting with it, this standardized design can make dissimilar coating cloud capture unit can load any one standard draw-in groove, its advantage is that the coating cloud capture unit type of distribution preferred arrangement in new coating cloud capturing device can crossing spray thing according to the coating cloud capturing device changed also is installed among coating cloud capturing device easily, play the trapping interception result of coating cloud capture unit and the utilization ratio of capture unit to greatest extent, greatly improve coating cloud capturing device to the trapping carrying capacity crossing spray thing.
Most of material according to multi-stag coating cloud capturing device provided by the invention is made by the low value material of recoverable, for disposable product, each device makes the form of independent monomer, each independently casing can be changed as required, compact conformation, it is convenient to change, and use and maintenance cost is low.
The dry type paint spraying system comprising described multi-stag coating cloud capturing device provided by the invention ideally solves the ability to arrange jobs problem of conventional dry coating cloud isolation technics.Relatively traditional wet type venturi or water-screen cabinet, this invention greatly reduces the amount of waste gas, waste liquid, completely without water.Air is after the multi-stag coating cloud capturing device that this invents, and the humiture of air there is not change substantially, can realize recycling air easily, energy-saving and cost-reducing.
In addition, multi-stag coating cloud capturing device provided by the invention is very large to the ability to arrange jobs of coating cloud, greatly can reduce the amount of solid waste.The whole of this coating cloud capturing device separation are paint, and paint and be evenly distributed in whole coating cloud capturing device, aeration is fine.The main component crossing spray thing is resin and solvent, and fuel value is very high, and the material major part of coating cloud capturing device itself is also all combustible.So the coating cloud capturing device that the aeration changed is good, fuel value is high, can use as fuel, turn waste into wealth.And traditional wet techniques, in the process crossing spray thing trapping separation, add other non-combustible materials, and be mixed into a large amount of water not easily removed, be difficult to, by these discarded objects of method process burned, often make landfill disposal, contaminated soil and underground water.So this invention possesses great meaning to energy-saving ring.
Accompanying drawing explanation
Fig. 1 be traditional coating cloud filter felt local saturated and blocking floor map;
Fig. 2 be traditional coating cloud filter felt local saturated and blocking schematic cross-section;
Fig. 3 is the profile perspective view of the multi-stag coating cloud capturing device of embodiment one;
Fig. 4 is the perspective view of the multi-stag coating cloud capturing device removing top board of embodiment one;
Fig. 5 is the cross-sectional structure schematic diagram of the multi-stag coating cloud capturing device of embodiment one;
Fig. 6 is the schematic perspective view of multiple coating cloud capture unit combinations of embodiment one;
Fig. 7 is the schematic perspective view of the single coating cloud capture unit of embodiment one;
Fig. 8 is the cross sectional representation of the multi-stag coating cloud capturing device of embodiment two;
Fig. 9 is the cross section structure schematic diagram of dry type paint spraying system;
Figure 10 is the process chart of typical dry type paint spraying system.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Fig. 1, Fig. 2 illustrate the saturated and schematic diagram of blocking in the local of traditional coating cloud filter felt, traditional coating cloud filter felt is all single layer structure, thickness is general all at below 10cm, although the area of filter felt is comparatively large, the space that spray thing was held in whole filter felt absorption is still limited.And in the process of spraying, spray region is often more concentrated excessively, easily occur the saturated of filter felt local and block, the coating cloud filter felt that need more renew, and a small amount of spray thing excessively has only been adsorbed in other region, the utilization ratio of coating cloud filter felt is low.
The air flowing through paint spray booth can carry the paint particle not being attached to coated article surface produced in painting process, herein this part paint particle is defined as " crossing spray thing ".
Many tiny paint particle suspensions are formed vaporific in atmosphere, and this patent calls these combinations forming vaporific paint particle in atmosphere that suspend " coating cloud ".
Paint particle had both comprised solid-state in this patent, and also comprise liquid, particularly liquid little paint paint drips, and the particle diameter of most paint particle is all between 10 microns to 100 microns.
Paint in the process of atomization, owing to being atomized the difference of instrument, the characteristic of its paint particle be atomized out has larger difference, especially crosses the particle characteristics of spray thing.
When adopting air atomizing device to carry out paint spraying, small particle diameter paint particle is the varying motion direction along with the transformation in coated article airflow on surface direction easily, to such an extent as to cannot arrive coated article surface and form spray thing; And oarse-grained paint particle is large due to the quality of itself, is not easy to depart from its tracks, often can adheres on coated article.
Then contrary when adopting electrostatic rotating cup to carry out paint spraying, short grained paint particle is due to itself lighter weight, easily under the effect of electric field force, arrive coated article surface, and the paint particle of Large stone is easily thrown out of under the influence of centrifugal force, and shape air and electric field force are also not enough to the centrifugal force of the paint particle overcoming Large stone, finally the paint particle of these Large stone formed spray thing because reaching coated article surface.
As can be seen here, if air atomizing device spraying produce cross the little and light paint particle of spray owner particle diameter, and if the spraying of electrostatic rotating cup produces crosses the large and heavy paint particle of spray owner particle.
In addition, paint itself is due to the difference of its composition, and the property difference of the paint particle be atomized out is also larger.Containing aluminium powder in priming paint and colored paint, pearl essence and pigment, can produce the paint particle that many particle diameters are little, density is large, and the solvent contained in paint particle is less in the process of its atomization, easily dry and lose viscosity; The prime cost of varnish is resin, and paint particle that it is atomized out major part particle diameter is comparatively large, and the solvent contained in paint particle is more and be not easy volatilization, and the paint particle crossed in spray thing is still liquid, has larger viscosity.
Same production line often uses different types of atomising device and different types of paint, the difference of the difference and humiture of adding atomising device operational factor also can cause the property difference of atomizing particle, these factors all can cause the diversity of spray composition granule characteristic.
A kind of multi-stag coating cloud capturing device provided by the invention, by arranging the spray coated spray thing that the particle characteristics produced under the combination of different types of coating cloud capture unit can tackle various operating mode well differs greatly in coating cloud capturing device, its version and operation principle as follows:
Embodiment 1
As shown in Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, the present embodiment provides a kind of multi-stag coating cloud capturing device 100, and its crust of the device 102 is as body structure, and crust of the device 102 uses the hard material of low value to make, and can use cardboard material.Each coating cloud capturing device is independently monomer, and coating cloud capturing device comprises successively: air intake 70, coating cloud dust trapping chamber 101, whole filter course 170, air outlet slit 80.
Because the profile of coating cloud capturing device is as body structure, application practitioner is also referred to as " coating cloud catch ", and some places also using " coating cloud catch " this title herein.
Air intake 70 is arranged on a side of coating cloud capturing device, and air outlet slit 80 is arranged on another relative side.Coating cloud dust trapping chamber 101 side and air intake 70 through, opposite side is communicated with whole filter course 170 and air outlet slit 80, and coating cloud dust trapping chamber 101 inside arranges the identical coating cloud capture unit 110,120,130,140,150,160 of 6 appearance and size.
The standard draw-in groove 180 of fixing coating cloud capture unit is provided with in coating cloud capturing device 100, the effect of standard draw-in groove 180 is fixing coating cloud capture unit, its size is all unified, the coating cloud capture unit of fixing any one type can be installed, make the assembling of coating cloud capturing device become easy, also make the type of the coating cloud capture unit of preferred arrangement in coating cloud capturing device become easy.
The coating cloud capture unit 110,120,130,140,150,160 of the present embodiment is corrugated plate shape structure, coating cloud capture unit 110,120,130,140,150,160 is arranged perpendicular to the main flow direction of air, all coating cloud capture unit are monolithic structure and each coating cloud capture unit covers the flow area of air, coating cloud capture unit is fibrous material, can glass fiber filter material be used, also can use chemical fiber filtering material.
Adopt full wafer and cover the quantity that the coating cloud capture unit of air circulation cross-section can greatly reduce coating cloud capture unit, reducing the difficulty of difficulty that coating cloud capture unit makes and the assembling of coating cloud capturing device.The fiber of coating cloud capture unit inside has interception to adhere to the effect of spray thing, when it reaches the trapping accommodation limit, the space of whole coating cloud capture unit all can adhere to full spray thing excessively, so the coating cloud capture unit of full wafer also can improve the utilization rate of coating cloud capturing device inner space, improve coating cloud capturing device to the trapping carrying capacity of coating cloud.
After standard draw-in groove 180 in the coating cloud capture unit loading coating cloud capturing device of required type, gap is left between adjacent two coating cloud capture unit, the effect in gap is current-sharing air, make through previous coating cloud capture unit air in this gap in current-sharing once, then enter a rear coating cloud capture unit again.This design can avoid the trapping effect being positioned at region, blocking position dead astern affecting next coating cloud capture unit because of the local location blocking of previous coating cloud capture unit.
This patent is " front " and " afterwards " that define with the main flow direction of air, and the region that primary air is first passed through is defined as " front ", and the region passed through after primary air is defined as " afterwards ".
Coating cloud capture unit makes polytype coating cloud capture unit according to the difference of filter fiber thickness and the difference of filter fiber layout density.
The filter fiber being arranged in the coating cloud capture unit of coating cloud capturing device leading portion is thicker, diameter is good at 20 ~ 50 microns, aperture between filter fiber is also comparatively large, and for most of paint type and spraying operating mode, the aperture between filter fiber is good at 500 microns to 2000 microns.For other spraying situation individual, what the aperture between glass fibre was arranged may be larger, reaches more than 2000 microns.The coating cloud capture unit 110 of the present embodiment and coating cloud capture unit 120 can incorporate the coating cloud capture unit into leading portion into.
The Main Function of leading portion coating cloud capture unit is the use filter fiber impact interception still sticking spray composition granule excessively of tool, the thing of spray excessively carried in air can encounter the in disorder glass fibre among progress path in the process of advancing, part is crossed spray composition granule and collide and adhere on fiber, adhere on filter fiber with sticking cross spray thing also can adhere to a part lose viscosity spray thing.
The leading portion of coating cloud capturing device arranges the larger coating cloud capture unit in aperture between fiber, aperture between the filter fiber of coating cloud capture unit is much larger than the diameter crossing spray composition granule, this wide-aperture arrange can make part cross spray thing by the filter fiber Adhesion catching in coating cloud capture unit, part cross spray thing can flow into next coating cloud capture unit through the space filter fiber.
The filter fiber being arranged in the coating cloud capture unit of coating cloud capturing device interlude is also thicker, diameter is good at 10 microns to 20 microns, aperture between filter fiber is also comparatively large, and for most of paint type and spraying operating mode, the aperture between filter fiber is good at 200 microns to 500 microns.The coating cloud capture unit 130 of the present embodiment and coating cloud capture unit 140 can incorporate the coating cloud capture unit into interlude into.
The Main Function of the coating cloud capture unit of interlude be utilize the filter fiber of coating cloud capture unit to tackle the part band that is not blocked of leading portion is sticking crosses spray thing, and utilize sticked on filter fiber with sticking cross that spray composition granule adheres to that a part lost viscosity cross spray thing.
Aperture between the filter fiber of the coating cloud capture unit that interlude is arranged is still larger, aperture between coating cloud capture unit fiber was greater than the diameter of spray composition granule, such aperture arranges and part can be made to cross spray thing by the filter fiber Adhesion catching in coating cloud capture unit, and the thing of spray excessively of part can flow into Next coating cloud capture unit through the space filter fiber.
The filter fiber being arranged in the coating cloud capture unit of coating cloud capturing device back segment is thinner, to make arrange more filter fiber in the unit volume of coating cloud capture unit, aperture between filter fiber is also little compared with leading portion, for most of paint type and spraying operating mode, the aperture between filter fiber is good at 5 microns to 200 microns.The coating cloud capture unit 150 of the present embodiment and coating cloud capture unit 160 can incorporate the coating cloud capture unit into back segment into.
The coating cloud capture unit of back segment not only plays and utilizes the filter fiber of coating cloud capture unit to tackle adhesion leading portion not by the sticking spray thing excessively of part band intercepted and captured, and also serve filtration, in the past each section be not blocked catch lose viscosity cross spray thing trap filter.
Aperture between the filter fiber of the coating cloud capture unit that back segment is arranged is less, the overwhelming majority above-mentioned each section be not blocked catch cross spray thing and all can be blocked in this section and catch, the crossing spray composition granule and can enter whole filter course through this section of indivedual small particle diameter.
Be provided with whole filter course 170 between coating cloud dust trapping chamber 101 and air outlet slit 80, whole filter course 170 is fiber filter material, can use glass fiber filter material, also can use chemical fiber filtering material.
The Main Function of whole filter course 170 be filter the above each layer of interception be not blocked catch cross spray composition granule, the major part of filtering is all lose the little of viscosity to cross spray composition granule, plays filtration comprehensively.
Multi-stag coating cloud capturing device provided by the invention is disposable product, and for most spraying situation, the life cycle of single coating cloud capturing device is in 1 to 3 week.Coating cloud capturing device trapped the situation of the amount of spray thing and crossed the spray distribution situation of thing in coating cloud capturing device and can learn within the shorter cycle.
Coating cloud capture unit in this coating cloud capturing device is arranged to multiple different type according to the thickness of fiber and the difference of fibre placement density, and its appearance and size is identical and can be arranged among any one coating cloud capture unit standard draw-in groove 180.
The design energy handled easily personnel of this coating cloud capturing device adjust the type of the coating cloud capture unit be arranged in new coating cloud capturing device according to the distribution situation crossing spray thing of the coating cloud capturing device changed, to adapt to the particle characteristics spraying thing, the load of each coating cloud capture unit in balanced coating cloud capturing device, improve coating cloud capturing device to the trapping carrying capacity crossing spray thing, method of adjustment is as follows:
If the spray thing excessively trapped in the coating cloud capture unit of leading portion is many, the spray thing excessively of stage casing and the trapping of back segment coating cloud capture unit is few, then arrange the coating cloud capture unit of lower fibre placement types of densities at the leading portion of new coating cloud capturing device.
If the spray thing excessively trapped in the coating cloud capture unit of interlude is many, the spray thing excessively that the coating cloud capture unit of leading portion and back segment traps is few, then arrange more high microsteping at the leading portion of new coating cloud capturing device and arrange the coating cloud capture unit of types of densities, stage casing arranges the coating cloud capture unit of lower fibre placement types of densities.
If trap in the coating cloud capture unit of back segment to cross spray thing many, leading portion and stage casing coating cloud capture unit trap to cross spray thing few, then more high microsteping is set at the leading portion of new coating cloud capturing device and stage casing and arranges the coating cloud capture unit of types of densities.
Said " higher " or " lower " are for the coating cloud capture unit of the same draw-in groove position in the coating cloud capturing device changed herein.The layout density of the coating cloud capture unit filter fiber in same coating cloud capturing device is all become close gradually along the main flow direction of air.
After adjustment several times, in coating cloud capturing device, the combination of coating cloud capture unit just can adapt to the on-the-spot particle characteristics crossing spray thing well, make the impartial load in each position of each coating cloud capture unit and capture unit, the inside of whole coating cloud capturing device is made to form a three-dimensional coating cloud trapping spatial accommodation, after all coating cloud capture unit in coating cloud capturing device are saturated because a large amount of spray things has excessively been received in trapping, just need the coating cloud capturing device more renewed, now in coating cloud capturing device, also a large amount of spray things has excessively been received in trapping.
Embodiment 2
As shown in Figure 8, the coating cloud capture unit of arranging in the multi-stag coating cloud capturing device of the present embodiment is plate-like structure, and distribution form and the operation principle of coating cloud capture unit are similar to Example 1, are not described in detail in this.The parts that function is identical employ the label identical with embodiment 1 in the present embodiment.
As shown in Figure 9, the dry type paint spraying system that the present embodiment provides mainly comprises as lower part: blast pipe 10, dynamic pressure room 11, plenum chamber 12, paint spray booth 20, spray robot 24, induction system 22, Pen Fang coating cloud dust trapping chamber 30, multi-stag coating cloud capturing device 100 and exhaust blower 50, wherein arranges above-mentioned multi-stag coating cloud capturing device 100 in Pen Fang coating cloud dust trapping chamber 30.
The course of work of dry type paint spraying system is as follows:
The product of spraying is needed to be transported in this paint spraying system from the upstream of this paint spraying system by induction system 22, by spray 21 application in this paint spraying system.
The air of the constant temperature and humidity of coming from air-conditioning is entered, then through dynamic pressure room 11 current-sharing by the air inlet 10 of paint spraying system; Air through the current-sharing of dynamic pressure room filters through bag filter 13, enters plenum chamber 12; The uniform air of flow velocity of coming from plenum chamber enters paint spray booth 20 after the top cotton of paint spray booth is filtered.
The lower disposed of paint spray booth has steel construction, and it supports induction system 22, spray robot 24 and bottom grid 23.Induction system 22 can be transported to desired position by by spray 21 from the entrance of paint spray booth; Spray robot 24 can for be sprayed by spray 21; Grid 23 can provide passage for personnel, and the Pen Fang coating cloud dust trapping chamber 30 of Ye Nengshi paint spray booth and bottom communicates.
Be provided with air conducting space 31 in Pen Fang coating cloud dust trapping chamber 30, the air being loaded with spray thing enters this region downwards via the hole of flase floor.Air conducting region is open upwards, and side is limited by side plate 38, and the bottom surface of both sides is limited by the top board of coating cloud capturing device 100 and cavity 41, and middle bottom surface is limited by base plate 39.The cross sectional shape in whole air conducting space 31 is a T font.
The air that driven plenum chamber (11,12) is come can carry the spray thing excessively produced in spraying process in the process through paint spray booth 20.The air carrying spray thing flows to Pen Fang coating cloud dust trapping chamber 30 by flase floor 23 under the effect of pressure reduction.In Pen Fang coating cloud dust trapping chamber, the air carrying spray thing guides to the middle region of two row's coating cloud capturing devices through air conducting space 31, then air changes flow direction under the effect of pressure reduction, enter level, be divided into two parts, respectively to both sides flowing, then enter the coating cloud capturing device 100 on both sides.
In the present embodiment, the coating cloud capturing device in Pen Fang coating cloud dust trapping chamber is made up of two row's multi-stag coating cloud capturing devices, and the quantity of coating cloud capturing device depends on the length of paint spray booth.
The air being loaded with spray thing enters from the air intake 70 of coating cloud capturing device 100, discharges from air outlet slit 80.
Be loaded with spray thing air enter multi-stag coating cloud capturing device 100 from air intake 70 after, trap via coating cloud capture unit 110,120,130,140,150,160 and be separated, cross spray thing to be caught by coating cloud capture unit and be separated and be collected in multi-stag coating cloud capturing device, air is comprehensively purified, and last air filters through whole filter course 170 and discharged by air outlet slit 80.
Certain coating cloud capturing device in two row's coating cloud capturing devices reach after its trapping receives the limit, can carry out independent replacing to this coating cloud capturing device.The distribution form of the coating cloud catch of this independent monomer structure, can make full use of each coating cloud capturing device, makes each coating cloud capturing device reach its trapping and holds the limit, improve the utilization rate of filtering material.
Air is through multi-stag coating cloud capturing device 100, just entering one can arrange in the cavity 41 of bag filter or active carbon, cavity 41 one end open, opening size is identical with the size that multi-stag coating cloud traps air exports, and is connected through by seal nipple with cavity by multi-stag coating cloud capturing device.The other end of cavity is connected with air-valve 42 by flange, and the other end of air-valve is connected with airduct 43, and airduct 43 other end is connected with blower fan 50.The effect of blower fan provides power to the flowing of wind, both provided pressure reduction to air, to make air flow.Air is transported to conditioner by airduct 60 and follow-up unshowned airduct after blower fan 50 pressurizes.In conditioner, the humiture of air is again sent paint spraying system back to and is recycled after obtaining finely tuning and reaching construction window that painting environments requires.
Carried the air of spray thing in the process flowing through multi-stag coating cloud capturing device, just trap coating cloud, and do not change the humiture state of air, air, after blower fan supercharging, only needs to send the state of conditioner to air to and finely tunes, and just can send paint spraying system back to and re-use, do not need to consume a large amount of fresh airs, do not need to discharge a large amount of waste gas, do not need to consume the state that a large amount of energy consumptions regulates air, energy-conserving and environment-protective yet.
Conveniently change multi-stag coating cloud capturing device 100, in the bottom of paint spraying system, delivery track 32 has been installed, for shifting out the coating cloud capturing device that needs to change and the new coating cloud capturing device of immigration.Coating cloud capturing device is placed on the pallet 37 of roller, and the roller installed under pallet rolls on delivery track 32, can move into needing the coating cloud capturing device changed easily or shift out.After replacing, need at delivery track upper berth one deck covering 36, this covering plays protection delivery track on the one hand from the effect of crossing the pollution of spray thing, also can collect a part on the other hand and cross spray thing.This covering can use hardboard, also can use plastic sheeting.
In the process of spraying, flow through in the air of this paint spraying system because most of solvent in paint can evaporate into.If air circulates always, the concentration in air can increase gradually.In order to avoid the concentration of the solvent in air reaches explosion limit, we generally adopt the way covering the air of a part of fresh air or low solvent strength, and the air of discharging a part of high solvent concentration carries out burning disposal.The air of low solvent strength can the air of the discharge of spraying area by hand.Typical process flow figure is shown in Figure 10.
This above-described embodiment is the principle of illustrative this patent and effect thereof only, but not in restriction this patent.Any personage being familiar with this patented technology all under the spirit and category of patent of the present invention, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that this patent discloses, must be contained by the claim of this patent.
Claims (15)
1. a disposable multi-stag coating cloud capturing device, for trapping the spray thing excessively produced in split spray process, coating cloud capturing device comprises the crust of the device limiting inlet air flow path, coating cloud dust trapping chamber, air intake, air outlet slit, coating cloud capture unit is furnished with in coating cloud dust trapping chamber, it is characterized in that: in coating cloud capturing device, arrange at least two coating cloud capture unit, coating cloud capture unit is arranged perpendicular to air main flow direction, and coating cloud capture unit is monolithic structure and each coating cloud capture unit covers the flow area of air.
2. disposable multi-stag coating cloud capturing device according to claim 1, is characterized in that: coating cloud capture unit is arranged in parallel and leaves gap therebetween.
3. disposable multi-stag coating cloud capturing device according to claim 1, is characterized in that: described coating cloud capture unit has at least two types, and the thickness of dissimilar coating cloud capture unit fiber is different with the layout density of fiber.
4. disposable multi-stag coating cloud capturing device according to claim 1, is characterized in that: the appearance and size of described coating cloud capture unit is identical.
5. disposable multi-stag coating cloud capturing device according to claim 1, is characterized in that: described coating cloud capture unit is corrugated plate shape structure.
6. disposable multi-stag coating cloud capturing device according to claim 1, is characterized in that: described coating cloud capture unit is plate-like structure.
7. disposable multi-stag coating cloud capturing device according to claim 1, is characterized in that: the material of described coating cloud capture unit is fibrous material.
8. disposable multi-stag coating cloud capturing device according to claim 1, is characterized in that: the layout density of the fiber of described coating cloud capture unit increases gradually along the main flow direction of air.
9. disposable multi-stag coating cloud capturing device according to claim 1, is characterized in that: the standard draw-in groove being provided with fixing coating cloud capture unit in described coating cloud capturing device.
10. a dry type paint spraying system, for to being sprayed by spray and trapping isolated spray thing, it is characterized in that: use the disposable multi-stag coating cloud capturing device as described in claim 1-9 any one as the parts of the isolated spray thing of trapping, be arranged on the exhaust outlet place of paint spraying system, trapping is separated the spray thing excessively of discharging in air.
11. 1 kinds trap the method crossing spray thing produced in split spray process, and the process of the method is as follows: the air carrying spray thing is directed to the multi-stag coating cloud capturing device place as described in claim 1 to 10 any one and enters coating cloud capturing device by the air intake of coating cloud capturing device; Contained the coating cloud capture unit that in coating cloud capturing device at least two of air of spray thing are dissimilar, the coating cloud in air is captured separations, and the air after the trapping of coating cloud capture unit is separated is discharged by air outlet slit after whole filter course filtration again; Coating cloud capturing device takes out coating cloud capturing device and also observes the distribution crossing spray thing in coating cloud capturing device after reaching its trapping accommodation limit; According to the type of the coating cloud capture unit of arranging in the coating cloud capturing device that the distribution optimization of crossing spray thing is new.
The method crossing spray thing produced in 12. split spray processes according to claim 11, it is characterized in that: described coating cloud capturing device is disposable product, coating cloud capturing device needs to be replaced with new coating cloud capturing device after reaching the trapping accommodation limit.
The method crossing spray thing produced in 13. split spray processes according to claim 11, it is characterized in that: the standard draw-in groove being provided with fixing coating cloud capture unit in coating cloud capturing device, the appearance and size of dissimilar coating cloud capture unit is identical, and dissimilar coating cloud capture unit can be arranged among any one standard draw-in groove.
The method crossing spray thing produced in 14. split spray processes according to claim 11, is characterized in that: according to the type crossing the coating cloud capture unit of distribution preferred arrangement in new coating cloud capturing device of spraying thing in the coating cloud capturing device taken out.
The method crossing spray thing produced in 15. split spray processes according to claim 11, it is characterized in that: by optimizing the type of the coating cloud capture unit of arranging in coating cloud capturing device, make each coating cloud capture unit in coating cloud capturing device all undertake lotus.
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Denomination of invention: A multi-stage paint mist capturing device and method for capturing and separating overspray Effective date of registration: 20220805 Granted publication date: 20190625 Pledgee: Zhejiang Tailong Commercial Bank Co., Ltd. Jiaxing Jiashan Sub-branch Pledgor: Jiaxing Kai Kai Coating Technology Co.,Ltd. Registration number: Y2022330001638 |
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