CN113521947B - Spraying paint vehicle carbon recovery emission reduction technology and device - Google Patents
Spraying paint vehicle carbon recovery emission reduction technology and device Download PDFInfo
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- CN113521947B CN113521947B CN202110828026.5A CN202110828026A CN113521947B CN 113521947 B CN113521947 B CN 113521947B CN 202110828026 A CN202110828026 A CN 202110828026A CN 113521947 B CN113521947 B CN 113521947B
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- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
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Abstract
The invention discloses a spraying paint vehicle carbon recovery emission reduction technology and a device, comprising: the device comprises a spraying device, a screening device and a material manufacturing device; the spraying device comprises a paint spraying room, a spray gun, an air inlet pipe, an air suction cover and a target workpiece; the spray gun is arranged in the paint spraying room, the air suction cover is arranged in the paint spraying room, one end of the air inlet pipe is communicated with the air suction cover, and the target workpiece is close to the air suction cover; the screening device comprises a cyclone separating mechanism, an air exhaust mechanism and a quality-grading screening mechanism; the other end of the air inlet pipe is communicated with the side wall of the top of the cyclone separation mechanism, the air exhaust mechanism is communicated with the top of the cyclone separation mechanism, and the quality grading screening mechanism is communicated with the bottom of the cyclone separation mechanism; the material preparation device comprises a homogenizing and stirring mechanism, a filtering mechanism and a paint mixing and stirring mechanism; the homogeneous stirring mechanism is sequentially communicated with the filtering mechanism and the paint mixing and stirring mechanism.
Description
Technical Field
The invention relates to the technical field of waste gas pollution treatment, in particular to a technology and a device for reducing emission of carbon recovered by spraying paint.
Background
The existing industrial workpiece spraying process comprises manual, mechanical arm, electrostatic spraying and the like, and the raw materials of the spraying process mainly comprise paint pigment, polyurethane, resin curing agent, benzene, toluene, xylene, ethanol, ethyl acetate and other types of diluents. According to the existing spraying process, about 25-40% of spraying paint is attached to the surface of a workpiece, only a small part of the spraying paint is utilized, the rest 60-75% of the spraying paint is sprayed on the periphery and gaps of the workpiece and runs off, and the running-off spraying paint completely enters an exhaust gas treatment system. Spraying waste gas has become a key pollution field of Volatile Organic Compounds (VOCs) pollution in China. The existing spraying waste gas treatment method basically adopts a water curtain spraying method as primary pretreatment, part of paint slag and part of organic solvent are removed, spraying liquid needs to be replaced periodically, the replaced waste spraying liquid is dangerous solid waste, the content of the sprayed waste gas, the paint slag, the waste gas and the paint slag is high, the adsorption material pores of the subsequent activated carbon and zeolite adsorption procedures can be rapidly blocked, the paint can not be regenerated due to rapid solidification of the paint, the residual paint slag is further removed by adopting a filter cotton filtering method in the prior art, and the organic waste gas after the paint slag is removed is finally converted into carbon dioxide and water by adopting the processes of RTO, RCO catalytic combustion, UV photolysis, activated carbon adsorption and the like, so that a large amount of carbon emission is generated. When the existing pretreatment process of combining water curtain spraying and filter cotton filtering is used for a spraying process, most of paint liquid (including diluent) is lost and cannot be utilized, resources are wasted, and the pretreatment efficiency is low. The lost paint liquid is directly discharged into workshop operation places and treated in outdoor environment, which causes harm to human health and environmental pollution; if the carbon is further treated by adopting methods such as adsorption, incineration and the like, although the emission can reach the standard, the cost is increased, secondary pollution such as waste activated carbon, carbon dioxide and the like is generated, the carbon emission of the carbon dioxide is increased, and the carbon peak reaching and carbon neutralization difficulty is increased.
Because of high viscosity, flammability and volatile curing property of the sprayed paint, the sprayed paint cannot be treated and recovered by conventional process devices such as cyclone, cloth bag, static electricity and the like.
In conclusion, about 25-40% of the sprayed paint in the existing spraying process is attached to the surface of the workpiece, and the rest 60-75% of the sprayed paint is lost, so that the spraying process is harmful to health, pollutes the environment, and increases the treatment cost and the carbon emission. The prior art at home and abroad has no effective process device which can effectively recycle the lost spraying paint. Meanwhile, the requirements of industrial coatings and diluents can be greatly reduced, and the capacity reduction and pollution reduction of the coating industry and related diluent release industry in China are promoted, so that a technology and a device capable of effectively recovering lost spraying paint are urgently needed in the market.
Disclosure of Invention
The invention aims to provide a spraying paint vehicle carbon recovery emission reduction technology and device, which are used for solving the problems in the prior art, and can realize the online recovery and reuse of the paint vehicle lost in the workpiece spraying process to reduce the generation amount of VOCs (volatile organic compounds), so that the carbon emission reduction effect of the emission of carbon dioxide generated by incineration treatment is reduced.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a spraying paint vehicle recycling carbon emission reduction device, which comprises: the device comprises a spraying device, a screening device and a material manufacturing device;
the spraying device comprises a paint spraying room, a spray gun, an air inlet pipe, an air suction cover and a target workpiece;
the spray gun is arranged in the paint spraying room, the air suction cover is arranged in the paint spraying room, one end of the air inlet pipe is communicated with the air suction cover, and the target workpiece is close to the air suction cover;
the screening device comprises a cyclone separating mechanism, an air exhaust mechanism and a quality-grading screening mechanism;
the other end of the air inlet pipe is communicated with the side wall of the top of the cyclone separation mechanism, the air exhaust mechanism is communicated with the top of the cyclone separation mechanism, and the quality grading screening mechanism is communicated with the bottom of the cyclone separation mechanism;
the material preparation device comprises a homogenizing and stirring mechanism, a filtering mechanism and a paint mixing and stirring mechanism;
the homogeneous stirring mechanism is sequentially communicated with the filtering mechanism and the paint mixing and stirring mechanism.
Preferably, the exhaust mechanism comprises an induced draft fan and an exhaust pipe;
one end of the exhaust pipe is communicated with the top of the cyclone separation mechanism, and the other end of the exhaust pipe is communicated with the draught fan.
Preferably, the cyclone separation mechanism comprises an air inlet cylinder, an air outlet cylinder, a conical cylinder and a scraping component;
the other end intercommunication of air-supply line the air-supply line top, the toper section of thick bamboo sets up the bottom of air-supply line, the air-supply line with the toper section of thick bamboo intercommunication, it is in to go out the chimney setting the top of air-supply line, it sets up for opening to go out the chimney bottom surface, it runs through to go out the chimney top the air-supply line top surface, the exhaust pipe intercommunication go out the chimney top, scrape the material subassembly and set up the bottom of toper section of thick bamboo, the discharge opening has been seted up to the bottom lateral wall of toper section of thick bamboo.
Preferably, the orifice of the air inlet pipe is arranged along the tangential direction of the inner wall of the air inlet cylinder; the mouth of the exhaust pipe is arranged along the tangential direction of the inner wall of the air outlet cylinder.
Preferably, the scraping assembly comprises a scraping motor, a driving rod, a connecting rod and a scraping rod;
the material scraping motor is fixedly connected with the bottom surface of the conical cylinder, the output end of the material scraping motor penetrates through the bottom surface of the conical cylinder and is fixedly connected with one end of the driving rod, the number of the connecting rods is two, the top and the bottom of the driving rod are fixedly connected with one end of the connecting rod respectively, the other end of the connecting rod is fixedly connected with the material scraping plate respectively, and the side surfaces of the material scraping plate are connected with the inner wall of the air inlet cylinder and the inner wall of the conical cylinder in a sliding mode.
Preferably, the quality-separating screening mechanism comprises a material selecting cylinder, a material receiving pipe, a material receiving valve and a waste cylinder;
the top of the material selecting barrel is communicated with the discharge hole through the material receiving pipe, and the material receiving valve is arranged on the material receiving pipe;
the waste container is used for containing paint which does not meet the standard.
Preferably, the homogeneous stirring mechanism and the paint mixing stirring mechanism have the same structure;
the homogeneous stirring mechanism comprises a stirring shell, a filler end cover, a feeding end cover, a forward rotation motor, a forward rotation shaft, a forward rotation supporting rod, a discharging pipe, a discharging pump and a reverse rotation assembly.
The material feeding device comprises a stirring shell, a material feeding end cover, a forward rotation motor, a forward rotation support rod, a material filling pump, a material discharging pump and a filtering mechanism, wherein the material feeding end cover and the material feeding end cover are respectively arranged on two sides of the top surface of the stirring shell, the forward rotation motor is fixedly connected to the center of the top surface of the stirring shell, an output shaft of the forward rotation motor penetrates through the center of the top surface of the stirring shell and is fixedly connected with the top of a forward rotation shaft, the forward rotation support rod is provided with a plurality of forward rotation support rods and is arranged on the circumferential surface of the forward rotation shaft at intervals, the reverse rotation assembly is arranged on the bottom surface of an inner cavity of the stirring shell, one end of the material discharging pipe is communicated with the bottom of the stirring shell, the material discharging pump is arranged on the material discharging pipe, and the other end of the material discharging pipe is communicated with the filtering mechanism;
the discharge pipe of the paint mixing and stirring mechanism is communicated with the spray gun.
Preferably, the reversing assembly comprises a reversing motor, a rotating rod, a reversing shaft and a reversing support rod;
the reverse motor sets up stirring casing bottom surface, the output shaft of reverse motor runs through stirring casing bottom surface with dwang middle part rigid coupling, the dwang bottom surface with stirring casing inner chamber bottom surface sliding connection, the reversal axle be provided with two, and respectively with the both ends rigid coupling of dwang, the side of reversal axle with stirring shells inner wall sliding connection, reversal branch is provided with a plurality of, and is a plurality of reversal branch is in reversal axle side interval sets up, and is a plurality of reversal branch with corotation branch intercrossing sets up.
Preferably, the filtering mechanism comprises a filter residue hopper, a clear liquid shell, a filter material net, an access hole, a flushing port, an emptying valve, a slag discharging valve, a filter material bracket, a backflushing control valve and a feeding valve;
one side of the filter residue hopper is communicated with one side of the clear liquid shell, the filter material net is arranged at the communication position of the filter residue hopper and the clear liquid shell, a plurality of filter material supports are fixedly connected in the clear liquid shell at equal intervals vertically, the side surfaces of the plurality of filter material supports are detachably and fixedly connected with the side surfaces of the filter material net, and the overhaul port is formed in the top surface of the filter residue hopper; the feed valve is communicated with the side surface of the filter residue hopper, the residue discharge valve is communicated with the bottom of the clear liquid shell, and the air flushing port is formed in the top surface of the clear liquid shell; the emptying valve is communicated with the bottom surface of the clear liquid shell, and the backflushing control valve is communicated with the side wall of the clear liquid shell; the back-flushing control valve is communicated with the top and the bottom of the paint stirring mechanism, and the feeding valve is communicated with the discharging pipe.
A spraying paint recycling carbon emission reduction technology comprises the following processing steps:
when paint spraying operation is carried out, part of lost paint is sucked into the cyclone separation mechanism from the suction hood;
after the paint vehicle enters the cyclone separation mechanism, the scraper plate rotates to scrape the paint vehicle attached to the cyclone separation mechanism, and meanwhile, the induced draft fan sucks gas into the exhaust pipe to be connected with a waste gas secondary treatment system;
the paint vehicle enters the quality-grading screening mechanism and then is primarily identified, the recovered paint vehicle with high purity is discharged into the homogeneous stirring mechanism, and the paint vehicle with low purity and difficult recycling enters the waste material cylinder;
adding a diluent into the homogeneous stirring mechanism, stirring, and discharging the uniformly stirred paint into the filtering mechanism;
merging the filter residue obtained in the filtering mechanism into the waste material cylinder, and discharging the obtained filtrate into the paint mixing and stirring mechanism;
synchronously adding a new paint into the paint mixing and stirring mechanism for stirring;
the stirred paint is pumped into the spray gun through the discharge pump.
The invention discloses the following technical effects: the arranged air suction hood sucks part of paint lost during paint spraying into the cyclone separation mechanism, recycling of the lost paint is guaranteed to the maximum extent, after the paint enters the cyclone separation mechanism, the paint attached to the cyclone separation mechanism is scraped off by the rotation of the scraping rod, the adhesion of the paint on the inner wall of the cyclone separation mechanism can be avoided, the reduction of solid-gas separation efficiency caused by excessive accumulation of the paint is avoided while the recovery efficiency is improved, meanwhile, the draught fan is used for connecting the gas suction and exhaust pipe with the waste gas secondary treatment system, the purification effect can be improved, the environment protection effect is achieved, after the diluent is added into the homogeneous stirring mechanism and stirred, the filtrate is discharged into the filter mechanism and then discharged into the paint mixing mechanism; adding new paint into the paint mixing and stirring mechanism synchronously, and stirring; the stirred paint is pumped into the spray gun through the discharging pump, and most of the paint which is not attached to the workpiece in the spraying process and runs off can be recycled on line through the arrangement, so that the using amount of the paint and the diluent is greatly reduced, and the discharge of the paint and carbon dioxide is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural view of a cyclone separating mechanism in embodiment 1 of the present invention;
FIG. 3 is a schematic view of the cyclone collection of the top cross section of dust particles in example 1 of the present invention;
FIG. 4 is a schematic view of the cyclone collection of the bottom cross section of dust particles in example 1 of the present invention;
FIG. 5 is a schematic structural view of a homogenizing and stirring mechanism in embodiment 1 of the present invention;
FIG. 6 is a schematic view showing the construction of a filter mechanism in embodiment 1 of the present invention;
FIG. 7 is a schematic structural view of example 2 of the present invention;
FIG. 8 is a schematic structural view of a scraping bar in embodiment 2 of the present invention;
FIG. 9 is an enlarged view of part A1 in example 2 of the present invention;
FIG. 10 is an enlarged view of part A2 in example 2 of the present invention;
FIG. 11 is a schematic structural view of example 3 of the present invention;
FIG. 12 is a flowchart of a recycling process in example 1 of the present invention;
wherein, 1, a paint spray booth; 2. a spray gun; 3. an air inlet pipe; 4. an air suction hood; 5. a target workpiece; 6. an induced draft fan; 7. an exhaust duct; 8. an air inlet cylinder; 9. an air outlet cylinder; 10. a tapered barrel; 11. a scraping motor; 12. a drive rod; 13. a connecting rod; 14. a scraping rod; 15. selecting a material barrel; 16. a material receiving pipe; 17. a material receiving valve; 18. a waste cylinder; 19. stirring the shell; 20. a filler end cap; 21. a feed end cap; 22. a forward rotation motor; 23. a positive rotation shaft; 24. a positive rotation support rod; 25. a discharge pipe; 26. a discharge pump; 27. a reverse motor; 28. rotating the rod; 29. a reverse rotation shaft; 30. reversing the strut; 31. a filter housing; 32. a filter frame; 33. a lower pressing plate; 34. a screw; 35. a threaded barrel; 36. a bearing; 37. a driving gear; 38. a driven gear; 39. pressing down the motor; 40. a discharge pipe; 41. a discharge pump; 42. a through groove; 43. a chute; 44. a scraper block; 45. a spherical slider; 46. a filter residue hopper; 47. a clear liquid shell; 48. a filter material net; 49. an access hole; 50. an air inlet; 51. an atmospheric valve; 52. a slag discharge valve; 53. a filter material support; 54. a recoil control valve; 55. a feed valve; 56. a filter layer; 57. a slag collecting groove; 58. a strip-shaped end cover; 59. an inflator pump; 60. and an inflation tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
Referring to fig. 1-6, the present invention provides a spray paint carbon recovery emission reduction device comprising: the device comprises a spraying device, a screening device and a material manufacturing device;
the spraying device comprises a paint spray booth 1, a spray gun 2, an air inlet pipe 3, an air suction hood 4 and a target workpiece 5;
the spray gun 2 is arranged in the paint spray booth 1, the air suction hood 4 is arranged in the paint spray booth 1, one end of the air inlet pipe 3 is communicated with the air suction hood 4, and the target workpiece 5 is close to the air suction hood 4;
the air suction hood 4 is arranged at the top or the side part in the paint spray booth 1, one end of the air inlet pipe 3 is communicated with the air suction hood 4, and the target workpiece 5 is arranged below or on the side of the air suction hood 4;
the screening device comprises a cyclone separating mechanism, an air exhaust mechanism and a quality-grading screening mechanism;
the other end of the air inlet pipe 3 is communicated with the side wall of the top of the cyclone separation mechanism, the air exhaust mechanism is communicated with the top of the cyclone separation mechanism, and the quality grading screening mechanism is communicated with the bottom of the cyclone separation mechanism;
the material preparation device comprises a homogenizing and stirring mechanism, a filtering mechanism and a paint mixing and stirring mechanism;
the homogeneous stirring mechanism is sequentially communicated with the filtering mechanism and the paint mixing and stirring mechanism.
The arranged air suction hood 4 sucks partial paint lost during paint spraying into the cyclone separation mechanism, recycling of the lost paint is guaranteed to the maximum extent, after the paint enters the cyclone separation mechanism, the paint attached to the cyclone separation mechanism is scraped off by rotation of the scraping rod 14, adhesion of the paint on the inner wall of the cyclone separation mechanism can be avoided, reduction of solid-gas separation efficiency caused by excessive accumulation of the paint is avoided while recovery efficiency is improved, meanwhile, the draught fan 6 is used for sucking gas into the exhaust pipe 7 and is connected with the waste gas secondary treatment system, the purification effect can be improved, the environment protection effect is achieved, after the diluent is added into the homogeneous stirring mechanism and stirred, the filtrate is discharged into the filtering mechanism and then discharged into the paint mixing stirring mechanism; adding new paint into the paint mixing and stirring mechanism synchronously, and stirring; the stirred paint is pumped into the spray gun 2 through the discharge pump 26, and the arrangement can recycle most of the paint which is not adhered to the workpiece and runs off in the spraying process on line, thereby greatly reducing the using amount of the paint and the diluent and greatly reducing the discharge of the paint and carbon dioxide.
In a further optimized scheme, the exhaust mechanism comprises an induced draft fan 6 and an exhaust pipe 7;
one end of the exhaust pipe 7 is communicated with the top of the cyclone separation mechanism, and the other end of the exhaust pipe 7 is communicated with the draught fan 6.
According to a further optimized scheme, the cyclone separation mechanism comprises an air inlet cylinder 8, an air outlet cylinder 9, a conical cylinder 10 and a scraping component;
the other end of air-supply line 3 communicates 8 tops of air-supply line section of thick bamboo, and cone 10 sets up in the bottom of air-supply line section of thick bamboo 8, and air-supply line section of thick bamboo 8 and cone 10 intercommunication, play bobbin 9 sets up at the top of air-supply line section of thick bamboo 8, and play bobbin 9 bottom surface is open setting, and air-supply line 8 top surface is run through at play bobbin 9 top, and exhaust pipe 7 communicates out bobbin 9 top, scrapes the material subassembly and sets up in the bottom of cone 10, and the discharge opening has been seted up to the bottom lateral wall of cone 10.
According to a further optimized scheme, the orifice of the air inlet pipe 3 is arranged along the tangential direction of the inner wall of the air inlet cylinder 8; the mouth of the exhaust pipe 7 is arranged along the tangential direction of the inner wall of the air outlet cylinder 9.
Paint vehicle gets into 3 tangential directions of air-supply line and gets into in cyclone's air-supply line 8, and paint vehicle is along with air top-down circular motion in air-supply line 8 and produces centrifugal force, and tiny paint vehicle granule centrifugal force is attached to the barrel inner wall down, and partial paint vehicle relies on the dead weight to flow in the bobbin base along the inner wall, and the recovery to the paint vehicle to the utmost that has realized, whole collection process is only accomplished through a draught fan 6 simultaneously, very big reduction the consumption of the energy.
In a further optimized scheme, the scraping component comprises a scraping motor 11, a driving rod 12, a connecting rod 13 and a scraping rod 14;
the material scraping motor 11 is fixedly connected with the bottom surface of the conical cylinder 10, the output end of the material scraping motor 11 penetrates through the bottom surface of the conical cylinder 10 and is fixedly connected with one end of the driving rod 12, the two connecting rods 13 are arranged, the top and the bottom of the driving rod 12 are fixedly connected with one end of the connecting rod 13 respectively, the other ends of the two connecting rods 13 are fixedly connected with the material scraping rod 14 respectively, and the side surfaces of the two material scraping rods 14 are slidably connected with the inner wall of the air inlet cylinder 8 and the inner wall of the conical cylinder 10 respectively.
The paint partially adhered to the inner wall is scraped to the bottom of the cylinder through the rotation of the scraping rod 14, the airflow after the paint is separated enters the air outlet cylinder 9 from the bottom and moves from bottom to top and is discharged from the exhaust pipe, and the separation of the paint and the gas is thoroughly realized.
In a further optimized scheme, the quality-grading screening mechanism comprises a material selecting cylinder 15, a material receiving pipe 16, a material receiving valve 17 and a waste cylinder 18;
the top of the material selecting barrel 15 is communicated with the discharge hole through a material receiving pipe 16, and a material receiving valve 17 is arranged on the material receiving pipe 16;
The paint is discharged into the material selecting cylinder 15 through the material receiving valve 17, primary identification is carried out, the recovered paint with high purity enters a homogenizing and stirring mechanism, and the paint with low purity and difficult recycling enters a waste material cylinder 18.
Further optimizing the scheme, the homogeneous stirring mechanism and the paint mixing stirring mechanism have the same structure;
the homogeneous stirring mechanism comprises a stirring shell 19, a filler end cover 20, a feeding end cover 21, a forward rotation motor 22, a forward rotation shaft 23, a forward rotation support rod 24, a discharge pipe 25, a discharge pump 26 and a reverse rotation assembly.
The filler end covers 20 and the feeding end covers 21 are respectively arranged on two sides of the top surface of the stirring shell 19, the forward rotation motor 22 is fixedly connected to the center of the top surface of the stirring shell 19, the output shaft of the forward rotation motor 22 penetrates through the center of the top surface of the stirring shell 19 and is fixedly connected with the top of the forward rotation shaft 23, the forward rotation support rods 24 are provided with a plurality of forward rotation support rods and are arranged on the peripheral surface of the forward rotation shaft 23 at intervals, the reverse rotation assemblies are arranged on the bottom surface of the inner cavity of the stirring shell 19, one end of the discharge pipe 25 is communicated with the bottom of the stirring shell 19, the discharge pump 26 is arranged on the discharge pipe 25, and the other end of the discharge pipe 25 is communicated with the filtering mechanism;
the discharge pipe 25 of the paint mixing and stirring mechanism is communicated with the spray gun 2.
The filler end cover 20 that sets up is used for adding the diluent after opening, and the feeding end cover 21 that sets up is used for filling stirring shell 19 with the paint vehicle that the purity is high in the section of thick bamboo 15 after opening, and the positive rotation axle 23 that sets up, positive rotation branch 24 cooperate with the reversal subassembly, can be with stirring shell 19 in the raw materials carry out intensive mixing, improve mixing efficiency.
In a further optimized scheme, the reversing assembly comprises a reversing motor 27, a rotating rod 28, a reversing shaft 29 and a reversing support rod 30;
reverse motor 27 sets up in stirring casing 19 bottom surface, reverse motor 27's output shaft runs through stirring casing 19 bottom surface and dwang 28 middle part rigid coupling, dwang 28 bottom surface and stirring casing 19 inner chamber bottom surface sliding connection, reverse shaft 29 is provided with two, and respectively with the both ends rigid coupling of dwang 28, the side and the stirring casing 19 inner wall sliding connection of reverse shaft 29, reverse branch 30 is provided with a plurality of, a plurality of reverse branch 30 sets up at reverse shaft 29 side interval, a plurality of reverse branch 30 and the setting of corotation branch 24 intercrossing each other.
The dwang 28 that sets up can prevent that 19 inner chambers of stirring shell bottom surfaces from taking place to glue glutinous phenomenon, and the reversal shaft 29 that sets up simultaneously can avoid 19 inner walls of stirring shell to take place to glue glutinous phenomenon, makes the paint vehicle that the stirring was accomplished get rid of completely, reduces and remains, increases operation rate.
In a further optimized scheme, the filtering mechanism comprises a filter residue hopper 46, a clear liquid shell 47, a filter material net 48, an access hole 49, an air flushing hole 50, an air release valve 51, a slag discharging valve 52, a filter material bracket 53, a back flushing control valve 54 and a feeding valve 55;
one side of the filter residue hopper 46 is communicated with one side of the clear liquid shell 47, the filter material net 48 is arranged at the communication position of the filter residue hopper 46 and the clear liquid shell 47, a plurality of filter material brackets 53 are fixedly connected in the clear liquid shell 47 at equal intervals vertically, the side surfaces of the plurality of filter material brackets 53 are detachably and fixedly connected with the side surfaces of the filter material net 48, and the access opening 49 is arranged on the top surface of the filter residue hopper 46; the feed valve 55 is communicated with the side surface of the filter residue hopper 46, the residue discharge valve 52 is communicated with the bottom of the clear liquid shell 47, and the air flushing port 50 is arranged on the top surface of the clear liquid shell 47; the emptying valve 51 is communicated with the bottom surface of the clear liquid shell 47, and the backflushing control valve 54 is communicated with the side wall of the clear liquid shell 47; the recoil control valve 54 is communicated with the top and bottom of the paint stirring mechanism, and the feed valve 55 is communicated with the discharge pipe 25.
The paint is introduced from a feed valve 55, and then filtered by a filter material net 48, so that clear liquid is discharged from a backflushing control valve 54, filter residues are discharged from a slag discharge valve 52, an air release valve 51 is used for ensuring the air pressure in the clear liquid shell 47 to be stable, pulse compressed air is introduced into a set air flushing port 50, the pressure is 2-6KPa, the pulse period is 5-30min, and the single backflushing time is 0.2-2min, and the filter material net 48 is backflushed, so that the function of cleaning the filter material net 48 is realized; the filter material net 48 can be detachably connected, and the aperture of the filter material is 10-100 nm.
A spraying paint recycling carbon emission reduction technology comprises the following processing steps:
when paint spraying operation is carried out, part of lost paint is sucked into the cyclone separation mechanism from the suction hood 4;
after the paint vehicle enters the cyclone separation mechanism, the scraping rod 14 rotates to scrape the paint vehicle attached to the cyclone separation mechanism, and meanwhile, the induced draft fan 6 sucks gas into the exhaust pipe 7 and is connected with the waste gas secondary treatment system;
the paint vehicle enters a quality-grading screening mechanism and then is primarily identified, the recovered paint vehicle with high purity is discharged into a homogenizing and stirring mechanism, and the paint vehicle with low purity and difficult recycling enters a waste material cylinder 18;
adding a diluent into the homogenizing and stirring mechanism, stirring, and discharging the uniformly stirred paint into the filtering mechanism;
the filter residue obtained in the filtering mechanism is merged into the waste material cylinder 18, and the obtained filtrate is discharged into the paint mixing and stirring mechanism;
adding new paint into the paint mixing and stirring mechanism synchronously, and stirring;
the stirred paint is pumped into the spray gun 2 by the discharge pump 26.
When paint spraying operation is carried out, a micro negative environment is formed below the suction hood 4 through air suction of the draught fan 6, paint is sprayed from the spray gun 2 and is partially sprayed onto a target workpiece 5, partial lost paint enters the air inlet cylinder 8 of the cyclone separation mechanism through the tangential direction of the air inlet pipe 3 of the suction hood 4 in the micro negative environment, the paint moves circularly from top to bottom in the air inlet cylinder 8 along with air to generate centrifugal force, fine paint particles are attached to the inner wall of the cylinder under the action of the centrifugal force, partial paint flows into the bottom of the cylinder along the inner wall by means of dead weight, partial paint adhered to the inner wall rotates and is scraped to the bottom of the cylinder through the material scraping rod 14, air flow after the paint is separated enters the air outlet cylinder 9 from the bottom, the air flow moves from bottom to top and is discharged from the exhaust pipe 7, the exhaust pipe 7 is connected with the draught fan 6, and the exhaust of the draught fan is connected with a waste gas secondary treatment system through the exhaust pipe 7.
The paint collected at the bottom of the cylinder is discharged into a material selecting cylinder 15, the paint collected in the material selecting cylinder 15 is primarily identified, the recovered paint with high purity enters a homogenizing and stirring mechanism, the paint with low purity and difficult recycling enters a waste material cylinder 18, a diluent is added into the homogenizing and stirring mechanism to supplement the diluent volatilized and lost in the links of spraying, conveying, waste material separation and the like and is uniformly stirred, the paint homogenized by the homogenizing and stirring mechanism enters a filtering mechanism through a discharge pump 26 to be filtered, filter residues are merged into the waste material cylinder 18 after filtering, filtrate enters a paint mixing and stirring mechanism, the paint with loss required by a target workpiece 5 and loss in the recovery process is added into the paint mixing and stirring mechanism, and the mixed paint is conveyed to a spray gun 2 by a paint discharge pump 26 to be continuously recycled.
Example 2
Referring to fig. 7-10, in order to avoid the paint accumulation on the scraping rod 14, a through groove 42 is formed on the scraping rod 14, inclined sliding grooves 43 are formed in the inner wall of the air inlet cylinder 8 and the inner wall of the conical cylinder 10, the cross section of each sliding groove 43 is circular, a scraping block 44 is connected onto the scraping rod 14 in a sliding manner, a spherical sliding block 45 is fixedly connected to the side surface of each scraping block 44, and each spherical sliding block 45 is connected with the groove wall of each sliding groove 43 in a sliding manner.
Due to the arrangement, the scraping rod 14 can scrape materials in a rotating mode, the arranged scraping block 44 reciprocates on the scraping rod 14, the scraping rod 14 can be cleaned, and paint accumulation is prevented.
Example 3
Referring to fig. 11, the present embodiment provides another embodiment of the filter mechanism, which includes a square or rectangular filter housing 31, filter plates, strip-shaped through holes, a lower press plate 33, a screw 34, a threaded cylinder 35, a bearing 36, a driving gear 37, a driven gear 38, a lower press motor 39, a discharge pipe 40, and a discharge pump 41;
the filter plate is arranged in the middle of the filter shell 31, the peripheral wall of the filter plate is detachably connected with the inner wall of the filter shell 31, the top surface of the filter shell 31 is provided with a through hole, the outer wall of the bearing 36 is fixedly connected with the inner wall of the through hole, the outer wall of the threaded cylinder 35 is fixedly connected with the inner wall of the bearing 36, the screw 34 is in threaded connection with the inner wall of the threaded cylinder 35, the bottom surface of the screw 34 is fixedly connected with the top surface of the lower pressing plate 33, the side surface of the lower pressing plate 33 is in sliding connection with the inner wall of the filter shell 31, the outer wall of the top of the threaded cylinder 35 is sleeved with a driven gear 38, the driven gear 38 is mutually meshed with the driving gear 37, the bottom of the driving gear 37 is fixedly connected with the output shaft of a lower pressing motor 39, the discharge pipe 25 is communicated with the top of the filter shell 31, one end of the discharge pipe 40 is communicated with the bottom of the filter shell 31, the other end of the discharge pipe 40 is communicated with the top of the bottom of the paint mixing stirring mechanism, and the discharge pump 41 is arranged on the discharge pipe 40;
the filter panel includes a snap frame 32 and a filter layer 56;
the filter layer 56 is fixedly connected at the bottom of the inner ring of the filter frame 32, a slag collecting groove 57 is formed at the top of the filter layer 56 and the inner wall of the filter frame 32, a strip-shaped through hole is arranged on the outer wall of one side of the filter shell 31, a clamping groove is arranged at the position where the inner wall of the filter shell 31 is parallel to the strip-shaped through hole, the filter frame 32 can be inserted into the filter shell 31 from the strip-shaped through hole, the inner wall of the clamping groove is matched with the filter frame 32, a strip-shaped end cover 58 which is hermetically and slidably connected with the filter shell 31 is detachably arranged in the strip-shaped through hole, an inflator pump 59 is fixedly connected with the outer wall of the bottom of the filter shell 31, the output end of the inflator pump 59 is communicated with an inflation tube 60, the inflator pump 59 inflates air into the filter shell 31, so that the filter slag attached to the filter layer 56 falls off, and is concentrated in the slag collecting groove 57, after the aeration is finished, the strip-shaped end cover 58 is opened to take out the filter plate, the filter residue is led into the waste material barrel 18, and the filter plate is reset again to finish the installation.
Because the viscidity of paint vehicle itself, often the filter effect is too slow when filtering, take place the siltation easily, the holding down plate 33 of setting can push down the paint vehicle, accelerate filter speed, improve the filter effect, after accomplishing filter work, can demolish the filter from filtering shell 31, clear up the back to the filter, to adhere to in the filter top surface filter sediment pours into waste material section of thick bamboo 18 again, guarantee the clean degree of filter when improving the filter utilization ratio, improve filtration efficiency.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (6)
1. An emission reduction device for recycling carbon in spraying paint, which is characterized by comprising: the device comprises a spraying device, a screening device and a material manufacturing device;
the spraying device comprises a paint spraying room (1), a spray gun (2), an air inlet pipe (3), an air suction hood (4) and a target workpiece (5);
the spray gun (2) is arranged in the paint spray booth (1), the air suction cover (4) is arranged in the paint spray booth (1), one end of the air inlet pipe (3) is communicated with the air suction cover (4), and the target workpiece (5) is close to the air suction cover (4);
the screening device comprises a cyclone separating mechanism, an air exhaust mechanism and a quality-grading screening mechanism; the air exhaust mechanism comprises an induced draft fan (6) and an exhaust pipe (7); one end of the exhaust pipe (7) is communicated with the top of the cyclone separation mechanism, and the other end of the exhaust pipe (7) is communicated with the induced draft fan (6); the cyclone separation mechanism comprises an air inlet cylinder (8), an air outlet cylinder (9), a conical cylinder (10) and a scraping component; the other end of the air inlet pipe (3) is communicated with the top of the air inlet cylinder (8), the conical cylinder (10) is arranged at the bottom of the air inlet cylinder (8), the air inlet cylinder (8) is communicated with the conical cylinder (10), the air outlet cylinder (9) is arranged at the top of the air inlet cylinder (8), the bottom surface of the air outlet cylinder (9) is open, the top of the air outlet cylinder (9) penetrates through the top surface of the air inlet cylinder (8), the exhaust pipe (7) is communicated with the top of the air outlet cylinder (9), the scraping component is arranged at the bottom of the conical cylinder (10), and the side wall of the bottom of the conical cylinder (10) is provided with a discharge hole; the opening of the air inlet pipe (3) is arranged along the tangential direction of the inner wall of the air inlet cylinder (8); the pipe orifice of the exhaust pipe (7) is arranged along the tangential direction of the inner wall of the air outlet cylinder (9); the scraping component comprises a scraping motor (11), a driving rod (12), a connecting rod (13) and a scraping rod (14);
the scraping motor (11) is fixedly connected with the bottom surface of the conical cylinder (10), the output end of the scraping motor (11) penetrates through the bottom surface of the conical cylinder (10) and is fixedly connected with one end of the driving rod (12), two connecting rods (13) are arranged, the top and the bottom of the driving rod (12) are fixedly connected with one end of one connecting rod (13) respectively, the other ends of the two connecting rods (13) are fixedly connected with one scraping rod (14) respectively, and the side surfaces of the two scraping rods (14) are slidably connected with the inner wall of the air inlet cylinder (8) and the inner wall of the conical cylinder (10) respectively;
a through groove is formed in the scraping rod, inclined sliding grooves are formed in the inner wall of the air inlet cylinder and the inner wall of the conical cylinder, the cross section of each sliding groove is circular, the scraping rod is connected with a scraping block in a sliding mode, a spherical sliding block is fixedly connected to the side face of the scraping block, and the spherical sliding block is connected with the groove wall of the sliding groove in a sliding mode; the other end of the air inlet pipe (3) is communicated with the side wall of the top of the cyclone separation mechanism, the air exhaust mechanism is communicated with the top of the cyclone separation mechanism, and the quality-grading screening mechanism is communicated with the bottom of the cyclone separation mechanism;
the material preparation device comprises a homogenizing and stirring mechanism, a filtering mechanism and a paint mixing and stirring mechanism;
the homogeneous stirring mechanism is sequentially communicated with the filtering mechanism and the paint mixing and stirring mechanism.
2. The spray paint carbon sequestration reduction plant of claim 1, wherein: the quality-separating screening mechanism comprises a material selecting barrel (15), a material receiving pipe (16), a material receiving valve (17) and a waste barrel (18); the top of the material selecting barrel (15) is communicated with the discharge hole through the material receiving pipe (16), and the material receiving valve (17) is arranged on the material receiving pipe (16);
the waste container (18) is used for containing paint which does not meet the standard.
3. The spray paint carbon sequestration reduction plant of claim 1, wherein: the homogeneous stirring mechanism and the paint mixing stirring mechanism have the same structure;
the homogeneous stirring mechanism comprises a stirring shell (19), a filler end cover (20), a feeding end cover (21), a forward rotation motor (22), a forward rotation shaft (23), a forward rotation support rod (24), a discharge pipe (25), a discharge pump (26) and a reverse rotation assembly;
the filler end cover (20) and the feeding end cover (21) are respectively arranged on two sides of the top surface of the stirring shell (19), the forward rotation motor (22) is fixedly connected to the center of the top surface of the stirring shell (19), an output shaft of the forward rotation motor (22) penetrates through the center of the top surface of the stirring shell (19) and is fixedly connected with the top of the forward rotation shaft (23), a plurality of forward rotation supporting rods (24) are arranged on the peripheral surface of the forward rotation shaft (23) at intervals, the reverse rotation assembly is arranged on the bottom surface of an inner cavity of the stirring shell (19), one end of the discharge pipe (25) is communicated with the bottom of the stirring shell (19), the discharge pump (26) is arranged on the discharge pipe (25), and the other end of the discharge pipe (25) is communicated with the filtering mechanism;
the discharge pipe (25) of the paint mixing and stirring mechanism is communicated with the spray gun (2).
4. A spray paint carbon sequestration reduction apparatus as claimed in claim 3, wherein: the reversing assembly comprises a reversing motor (27), a rotating rod (28), a reversing shaft (29) and a reversing support rod (30);
reverse motor (27) set up stirring casing (19) bottom surface, the output shaft of reverse motor (27) runs through stirring casing (19) bottom surface with dwang (28) middle part rigid coupling, dwang (28) bottom surface with stirring casing (19) inner chamber bottom surface sliding connection, reversal axle (29) are provided with two, and respectively with the both ends rigid coupling of dwang (28), the side of reversal axle (29) with stirring casing (19) inner wall sliding connection, reversal branch (30) are provided with a plurality of, and are a plurality of reversal branch (30) are in reversal axle (29) side interval sets up, and is a plurality of reversal branch (30) with reversal branch (24) intercrossing sets up.
5. The coated paint carbon sequestration reduction plant of claim 4, wherein: the filter mechanism comprises a filter residue hopper (46), a clear liquid shell (47), a filter material net (48), an access hole (49), a flushing port (50), a vent valve (51), a residue discharge valve (52), a filter material bracket (53), a backflushing control valve (54) and a feed valve (55);
one side of the filter residue hopper (46) is communicated with one side of the clear liquid shell (47), the filter material net (48) is arranged at the communication position of the filter residue hopper (46) and the clear liquid shell (47), a plurality of filter material supports (53) are fixedly connected in the clear liquid shell (47) at equal intervals in the vertical direction, the side surfaces of the filter material supports (53) are fixedly connected with the side surfaces of the filter material net (48), and the maintenance opening (49) is formed in the top surface of the filter residue hopper (46); the feed valve (55) is communicated with the side surface of the filter residue hopper (46), the residue discharge valve (52) is communicated with the bottom of the clear liquid shell (47), and the air flushing port (50) is formed in the top surface of the clear liquid shell (47); the emptying valve (51) is communicated with the bottom surface of the clear liquid shell (47), and the backflushing control valve (54) is communicated with the side wall of the clear liquid shell (47) to be conveyed; the backflushing control valve (54) is communicated with the top of the bottom of the paint stirring mechanism, and the feeding valve (55) is communicated with the discharging pipe (25).
6. A spray paint carbon sequestration abatement method, a spray paint carbon sequestration abatement apparatus according to any one of claims 1-5, wherein the processing steps comprise:
when paint spraying operation is carried out, part of lost paint is sucked into the cyclone separation mechanism from the suction hood (4);
after the paint enters the cyclone separation mechanism, the scraping rod (14) rotates to scrape the paint attached to the cyclone separation mechanism, and meanwhile, the induced draft fan (6) sucks gas into the exhaust pipe (7) to be connected with a waste gas secondary treatment system;
the paint vehicle enters the quality-grading screening mechanism and then is primarily identified, the recovered paint vehicle with high purity is discharged into the homogeneous stirring mechanism, and the paint vehicle with low purity and difficult recycling enters a waste material cylinder (18);
adding a diluent into the homogeneous stirring mechanism, stirring, and discharging the uniformly stirred paint into the filtering mechanism;
filter residues obtained in the filtering mechanism are merged into a waste material cylinder (18), and obtained filtrate is discharged into the paint mixing and stirring mechanism;
synchronously adding a new paint into the paint mixing and stirring mechanism for stirring;
the stirred paint is pumped into the spray gun (2) by a discharge pump (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110828026.5A CN113521947B (en) | 2021-07-22 | 2021-07-22 | Spraying paint vehicle carbon recovery emission reduction technology and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110828026.5A CN113521947B (en) | 2021-07-22 | 2021-07-22 | Spraying paint vehicle carbon recovery emission reduction technology and device |
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| CN113521947A CN113521947A (en) | 2021-10-22 |
| CN113521947B true CN113521947B (en) | 2022-03-25 |
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| CN113521947A (en) | 2021-10-22 |
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