CN107876350B - Metal surface atomizing sprays former treatment facility - Google Patents
Metal surface atomizing sprays former treatment facility Download PDFInfo
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- CN107876350B CN107876350B CN201711222829.6A CN201711222829A CN107876350B CN 107876350 B CN107876350 B CN 107876350B CN 201711222829 A CN201711222829 A CN 201711222829A CN 107876350 B CN107876350 B CN 107876350B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/60—Adding a layer before coating
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- General Chemical & Material Sciences (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
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Abstract
The invention discloses a metal surface atomization spraying pretreatment device which comprises a treatment box, wherein a transmission chain for driving a metal workpiece to move in the treatment box is arranged at the top of the treatment box along the extension direction of the treatment box, and the inside of the treatment box is sequentially divided into a degreasing section, a water washing section and a film feeding section from front to back; go up the inside parallel interval of membrane section and lay many processing liquid atomizing shower, be provided with a plurality of processing liquid atomizing nozzles on processing liquid atomizing shower, processing liquid atomizing nozzle arranges along certain angle to make atomizing spun processing liquid at the box internal loop of handling the case. When the device disclosed by the invention is used for treating metal plates or workpieces, the pollution of the film coating treatment liquid can be effectively avoided, the waste of the treatment liquid is reduced, the influence caused by groove crossing is eliminated, the film coating quality and the film coating uniformity of the treatment liquid are improved, the stability of a pre-treated film is maintained, the influence on the adhesive force, the drying performance and the corrosion resistance of a subsequent paint film is avoided, and the production cost is effectively reduced.
Description
Technical Field
The invention relates to metal surface atomization spraying pretreatment equipment, and belongs to the field of metal surface pretreatment.
Background
In order to provide good protection for the metal substrate, prevent the metal substrate from being corroded before coating and improve the binding force and the corrosion resistance of a paint film and the substrate, the metal substrate is subjected to metal surface pretreatment before coating. The prior common metal surface pretreatment processes comprise a silanization treatment process, a silicon-zirconium composite treatment process and a zirconization treatment process. The metal surface pretreatment process comprises the working procedures of degreasing, washing, filming and the like, and the treatment modes of the degreasing, washing and filming all adopt a soaking type, a spraying type, a soaking and spraying combined type or a brush coating type. However, the above-mentioned treatment method, particularly when used in the coating process, has the following disadvantages: in the spraying type filming treatment mode, the treatment liquid is sprayed repeatedly, so that foams are easily generated, and the content of metal ions in the treatment liquid is increased after the treatment liquid is sprayed repeatedly on the metal substrate, so that the treatment liquid has the phenomena of color change, turbidity and the like, and the performance of the treatment liquid is influenced; if the degreasing and water washing effects are not good, the metal workpiece can also bring surfactant and impurity ions which are not easy to clean in a degreasing tank into a treatment liquid tank, so that the phenomenon of groove mixing is caused, and the film coating quality and the service life of the treatment liquid are seriously influenced; and the treatment liquid is repeatedly sprayed for use, and the concentration of the treatment liquid gradually changes along with the prolonging of time, so that the quality of the upper film is not uniform, and the performance of the pretreatment film is unstable.
Disclosure of Invention
In order to solve the technical problem, the invention provides a metal surface atomization spraying pretreatment device.
The technical solution adopted by the invention is as follows:
a metal surface atomization spraying pretreatment device comprises a treatment box, wherein a transmission chain for driving a metal workpiece to move in the treatment box is arranged at the top of the treatment box along the extension direction of the treatment box, and the inside of the treatment box is sequentially divided into a degreasing section, a water washing section and a film feeding section from front to back; a plurality of treatment liquid atomization spray pipes are arranged in the upper membrane section in parallel at intervals, a plurality of treatment liquid atomization nozzles are arranged on the treatment liquid atomization spray pipes, each treatment liquid atomization spray pipe comprises a treatment liquid conveying branch pipe and a gas conveying branch pipe, each treatment liquid atomization nozzle comprises a gas inlet, a liquid inlet and an atomized liquid spraying port, each gas inlet is communicated with the corresponding gas conveying branch pipe, each liquid inlet is communicated with the corresponding treatment liquid conveying branch pipe, a treatment liquid storage barrel is arranged on the outer side of the upper membrane section of the treatment box, each treatment liquid storage barrel is communicated with the corresponding treatment liquid conveying branch pipe through a treatment liquid conveying main pipe, a pressure pump is arranged on each treatment liquid conveying main pipe, each gas conveying branch pipe is communicated with the corresponding gas conveying branch pipe, and an air compressor is arranged on each gas conveying main pipe; the treatment liquid atomization spray pipe is arranged along the inner wall of the treatment box, the treatment liquid atomization nozzles are arranged at intervals along the treatment liquid atomization spray pipe, the treatment liquid atomization nozzles arranged at the top of the treatment liquid atomization spray pipe are fixed by inclining 45 degrees from the top side of the vertical box to the right side, the treatment liquid atomization nozzles arranged at the bottom of the treatment liquid atomization spray pipe are fixed by inclining 45 degrees from the bottom side of the vertical box to the left side, the treatment liquid atomization nozzles arranged at the left side of the treatment liquid atomization spray pipe are fixed by inclining 15 degrees from the left side of the vertical box or inclining upwards by 15 degrees from the left side of the vertical box, and the treatment liquid atomization nozzles arranged at the right side of the treatment liquid atomization spray pipe are fixed by inclining 10 degrees from the right side of the vertical box or inclining downwards by 10 degrees from the right side of the vertical box.
Preferably, a plurality of first air nozzles are additionally arranged on the top side of the box body and inclined towards the right side by 45 degrees in the vertical box body direction, a plurality of second air nozzles are additionally arranged on the bottom side of the box body and inclined towards the left side by 45 degrees in the vertical box body direction, and the first air nozzles and the second air nozzles are communicated with the gas conveying branch pipes.
Preferably, a treatment liquid collecting tank is arranged below the upper membrane section of the treatment box, and strip-shaped treatment liquid underflow ports are arranged at intervals at the bottom of the upper membrane section of the treatment box.
Preferably, a plurality of degreasing liquid spraying pipes are arranged in the degreasing section in parallel at intervals, a plurality of degreasing liquid nozzles are arranged on the degreasing liquid spraying pipes, a degreasing tank is arranged below the degreasing section of the treatment box, the degreasing tank is connected with the degreasing liquid spraying pipes through a degreasing liquid conveying main pipeline, and strip-shaped degreasing liquid underflow ports are arranged at intervals at the bottom of the degreasing section of the treatment box; a plurality of washing spray pipes are arranged in the washing section in parallel at intervals, a plurality of cleaning water nozzles are arranged on the washing spray pipes, a washing tank is arranged below the washing section of the treatment box and is connected with the washing spray pipes through a main cleaning water conveying pipeline, and strip-shaped spray water underflow openings are arranged at intervals at the bottom of the washing section of the treatment box; the degreasing fluid spray pipes and the water washing spray pipes are arranged along the inner wall of the box body of the treatment box, the degreasing fluid nozzles are arranged at intervals along the degreasing fluid spray pipes, and the degreasing fluid nozzles and the cleaning water nozzles are fixed in a mode of being perpendicular to the current wall surface of the box body.
Preferably, the degreasing section is provided with the spray pipe of degreasing in advance including degreasing section and main degreasing section in advance in the inside of degreasing section in advance, is provided with main degreasing spray pipe in the inside of main degreasing section, the degreasing tank is including degreasing groove and main degreasing groove in advance, degreasing spray pipe and degreasing groove intercommunication in advance, main degreasing spray pipe and main degreasing groove intercommunication, bar degreasing liquid underflow opening is including degreasing liquid underflow opening and main degreasing liquid underflow opening in advance, and degreasing liquid underflow opening is located the top in degreasing groove in advance, and main degreasing liquid underflow opening is located the top in main degreasing groove.
Preferably, the water washing section comprises a first water washing section, a second water washing section and a third water washing section, a first water washing spray pipe is arranged in the first water washing section, a second water washing spray pipe is arranged in the second water washing section, a third water washing spray pipe is arranged in the third water washing section, the rinsing tanks comprise a first rinsing tank, a second rinsing tank and a third rinsing tank, the first rinsing spray pipe is communicated with the first rinsing tank, the second rinsing spray pipe is communicated with the second rinsing tank, the third rinsing spray pipe is communicated with the third rinsing tank, the strip-shaped spray water underflow port comprises a first spray water underflow port, a second spray water underflow port and a third spray water underflow port, the first spray water underflow port is positioned above the first water washing tank, the second spray water underflow port is positioned above the second water washing tank, and the third spray water underflow port is positioned above the third water washing tank; the delivery port of third wash bowl passes through the water inlet intercommunication of first overflow pipe with the second wash bowl, and the delivery port of second wash bowl passes through the water inlet intercommunication of second overflow pipe with the first wash bowl, and the delivery port of first wash bowl communicates the sewer line, the delivery port of third wash bowl, the delivery port of second wash bowl and the highly reducing in proper order of the delivery port of first wash bowl.
Preferably, the transmission chain is fixed through the support frame, a hook used for hanging a metal workpiece is hung on the transmission chain, and the center of the top of the treatment box is provided with an opening which enables the hook to stretch into the treatment box conveniently.
The treatment equipment is only suitable for the pretreatment process of silanization or silicon-zirconium compounding of the metal surface, and is not suitable for phosphating or passivation treatment of the metal surface.
The beneficial technical effects of the invention are as follows:
the metal surface atomization spraying pretreatment equipment is designed, and can be used for processing metal plates or workpieces such as cold-rolled steel plates, galvanized plates, aluminum materials and the like in a production line.
Drawings
The invention will be further described with reference to the following detailed description and drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1, showing primarily the structure of the membrane section on the treatment tank;
FIG. 3 is a schematic structural view of a treatment liquid atomizing spray pipe according to the present invention;
FIG. 4 is a schematic view of an arrangement of process liquid atomizing nozzles in the upper film section of the process tank;
FIG. 5 is a schematic view of another arrangement of the treatment liquid atomizing nozzles in the upper film section of the treatment tank;
FIG. 6 is a schematic structural view showing a third arrangement of the treatment liquid atomizing nozzles in the upper film section of the treatment tank;
FIG. 7 is a schematic view showing the arrangement of degreasing fluid spray pipes according to the present invention;
FIG. 8 is a schematic view of the arrangement of degreasing fluid nozzles in the degreasing section of the treatment tank;
FIG. 9 is a schematic view showing the structure of one mode of the treatment liquid atomizing nozzle used in the present invention.
Detailed Description
Combine the attached drawing, a metal surface atomizing sprays preceding processing apparatus, including handling case 1, it is whole to be the font of returning the font to handle case 1, for the show of convenient inner structure, only shows in FIG. 1 and handles the open structure of the local section body of case. Be provided with the drive chain 3 that drives metal workpiece 2 and move in handling case 1 at the top of handling case 1 along its direction of extension, drive chain 3 fixes at the top of handling case 1 through a plurality of support frames 4, hangs the couple that is used for hanging metal workpiece on drive chain 3, the top center of handling case 1 is provided with along its direction of extension and makes things convenient for the couple to stretch into the opening of handling incasement portion.
As shown in fig. 1 and 2, the inside of the treatment tank 1 is divided into a degreasing section 101, a washing section 102, and an upper membrane section 103 in this order from front to back, but a drying section may be added behind the upper membrane section 103. A plurality of treatment liquid atomization spray pipes 25 are arranged in the upper membrane section 103 in parallel at intervals, and a plurality of treatment liquid atomization nozzles 5 are arranged on the treatment liquid atomization spray pipes 25. As shown in fig. 3, the treatment liquid atomizing shower includes a treatment liquid delivery manifold 6 and a gas delivery manifold 7. The treatment liquid atomizing nozzle 5 can adopt the existing atomizing nozzle structure, liquid is fed while air is fed, and the treatment liquid is atomized in an atomizing cavity and then is sprayed out in the form of fine fog drops. Fig. 9 shows a more general structure, and as shown in the figure, the treatment liquid atomizing nozzle 5 includes a gas inlet 501, a liquid inlet 502, an atomized liquid ejection port 503, and an atomized flow rate adjusting valve 504, the gas inlet 501 is communicated with the gas delivery branch pipe 7, and the liquid inlet 502 is communicated with the treatment liquid delivery branch pipe 6. The membrane section outside is provided with the treatment fluid and deposits bucket 8 on handling the case, and treatment fluid deposits bucket 8 and carries main pipe 9 and treatment fluid to carry branch 6 intercommunication through the treatment fluid, is provided with force pump 10 on main pipe 9 is carried to the treatment fluid, gas delivery branch 7 is responsible for 11 intercommunications with gas delivery, is provided with air compressor 12 and pressure regulating valve 24 on main pipe 11 is carried to the gas delivery.
The treatment liquid atomization spray pipes are arranged along the longitudinal section of the inner wall of the box body of the treatment box, and the corresponding treatment liquid atomization spray pipes are integrally shaped like a Chinese character 'hui' with an opening above. The treatment liquid atomizing nozzles 5 are arranged at intervals along the treatment liquid atomizing spray pipes, wherein the treatment liquid atomizing nozzles arranged at the top of the treatment liquid atomizing spray pipes are fixed by inclining 45 degrees from the top side of the vertical box body to the right side, the treatment liquid atomizing nozzles arranged at the bottom of the treatment liquid atomizing spray pipes are fixed by inclining 45 degrees from the bottom side of the vertical box body to the left side, the treatment liquid atomizing nozzles arranged at the left side of the treatment liquid atomizing spray pipes and the treatment liquid atomizing nozzles arranged at the right side of the treatment liquid atomizing spray pipes are fixed by being vertical to the left side or the right side of the vertical box body, as shown in figure 4, the treatment liquid atomizing nozzles adopt the arrangement mode to enable treatment liquid sprayed by atomization to circulate in the box body of the treatment box, so that an. Fig. 5 shows another embodiment, as shown in the figure, the treatment liquid atomizing nozzle arranged at the top of the treatment liquid atomizing spray pipe is fixed by inclining 45 degrees from the top side of the vertical box body to the right side, the treatment liquid atomizing nozzle arranged at the bottom of the treatment liquid atomizing spray pipe is fixed by inclining 45 degrees from the bottom side of the vertical box body to the left side, the treatment liquid atomizing nozzle arranged at the left side of the treatment liquid atomizing spray pipe is fixed by inclining 15 degrees from the left side of the vertical box body upwards, and the treatment liquid atomizing nozzle arranged at the right side of the treatment liquid atomizing spray pipe is fixed by inclining 10 degrees from the right side of the vertical box body downwards, so that the treatment liquid sprayed by atomization can better circulate in the box body of the treatment box, thereby avoiding the existence of an.
As a further design of the present invention, as shown in FIG. 6, a first air nozzle 13 is additionally installed at the rightmost end of the top side of the box body with an inclination of 45 DEG to the right side in the vertical box body direction, a second air nozzle 14 is additionally installed at the rightmost end of the bottom side of the box body with an inclination of 45 DEG to the left side in the vertical box body direction, and both the first air nozzle 13 and the second air nozzle 14 are communicated with the gas delivery branch pipe. After the treatment liquid is atomized and sprayed out, the circulation effect of the atomized liquid in the box body can be enhanced by adjusting the air outlet pressure of the air nozzle. This structural design mode is particularly useful for the box broad, when the pressure that singly leans on the atomizing nozzle is difficult to reach atomizing liquid circulation effect.
Furthermore, a treatment liquid collecting groove 15 is arranged below the upper membrane section 103 of the treatment box, and strip-shaped treatment liquid underflow ports 16 are arranged at intervals at the bottom of the upper membrane section of the treatment box. The treatment fluid atomized and dropped into the tank body flows into the treatment fluid collecting tank 15 through the treatment fluid underflow port 16, the treatment fluid is recovered and reprocessed, and the reprocessed treatment fluid can be continuously used after being detected to be qualified.
A plurality of degreasing liquid spraying pipes 17 are arranged in the degreasing section in parallel at intervals, and a plurality of degreasing liquid nozzles 18 are arranged on the degreasing liquid spraying pipes. The degreasing fluid nozzle adopts the prior nozzle structure, only needs to spray liquid with certain pressure, and does not need atomization. Such as a nozzle arrangement similar to a car wash gun, etc. The degreasing tank is arranged below the degreasing section of the treatment box, the degreasing tank is connected with a degreasing liquid spraying pipe through a degreasing liquid conveying main pipeline, and strip-shaped degreasing liquid underflow openings are arranged at intervals at the bottom of the degreasing section of the treatment box. Many washing shower are laid to the inside parallel interval of washing section, are provided with a plurality of clean water nozzles on the washing shower, are provided with the wash bowl in the below of handling case washing section, and the wash bowl passes through clean water trunk line and is connected with the washing shower, is provided with bar shower water underflow mouth in the bottom interval of handling case washing section. The degreasing fluid spray pipes and the water washing spray pipes are arranged along the inner wall of the box body of the treatment box, the degreasing fluid nozzles are arranged at intervals along the degreasing fluid spray pipes, and the degreasing fluid nozzles and the cleaning water nozzles are fixed in a mode of being perpendicular to the current wall surface of the box body. Fig. 7 and 8 show the arrangement mode of the degreasing liquid spray pipes and the distribution of the degreasing liquid nozzles on the degreasing liquid spray pipes in the degreasing section, and the distribution of the cleaning water nozzles on the water washing spray pipes and the arrangement mode of the water washing spray pipes in the water washing section are the same as those in the degreasing section. The degreasing section and the water washing section adopt the spraying structure, so that the metal workpiece can be sprayed in all directions, the degreasing and water washing effects are ensured, a foundation is established for subsequent atomization film coating, and the film coating quality and the film coating uniformity of the treatment liquid are further improved. And adopt above-mentioned spray structure, on the one hand can ensure the degrease effect, on the other hand can all wash clean with surfactant active and the impurity ion on metal work piece surface, avoids bringing into the processing cistern, eliminates the cluster groove.
As a further design of the present invention, the degreasing section includes a pre-degreasing section and a main degreasing section, a pre-degreasing spray pipe is disposed inside the pre-degreasing section, a main degreasing spray pipe is disposed inside the main degreasing section, the degreasing tank includes a pre-degreasing tank 19 and a main degreasing tank 20, the pre-degreasing spray pipe is communicated with the pre-degreasing tank 19, the main degreasing spray pipe is communicated with the main degreasing tank 20, the strip-shaped degreasing liquid underflow port includes a pre-degreasing liquid underflow port and a main degreasing liquid underflow port, the pre-degreasing liquid underflow port is located above the pre-degreasing tank, and the main degreasing liquid underflow port is located above the main degreasing tank.
The washing section comprises a first washing section, a second washing section and a third washing section, a first washing spray pipe is arranged in the first washing section, a second washing spray pipe is arranged in the second washing section, a third washing spray pipe is arranged in the third washing section, the washing tank comprises a first washing tank 21, a second washing tank 22 and a third washing tank 23, the first washing spray pipe is communicated with the first washing tank, the second washing spray pipe is communicated with the second washing tank, the third washing spray pipe is communicated with the third washing tank, the bar-shaped spraying water underflow opening comprises a first spraying water underflow opening, a second spraying water underflow opening and a third spraying water underflow opening, the first spraying water underflow opening is positioned above the first washing tank, the second spraying water underflow opening is positioned above the second washing tank, and the third spraying water underflow opening is positioned above the third washing tank.
According to the invention, through the structural arrangement of pre-degreasing, main degreasing and staged three-stage water washing, the degreasing and water washing effects of the metal workpiece are improved, the waste of degreasing liquid and cleaning water is avoided, the film coating quality is improved, and the cost is reduced.
Furthermore, the water outlet of the third water washing tank is communicated with the water inlet of the second water washing tank through the first overflow pipe, the water outlet of the second water washing tank is communicated with the water inlet of the first water washing tank through the second overflow pipe, the water outlet of the first water washing tank is communicated with the sewage pipeline, and the heights of the water outlet of the third water washing tank, the water outlet of the second water washing tank and the water outlet of the first water washing tank are sequentially reduced. The first rinsing bath and the second rinsing bath adopt tap water, the third rinsing bath adopts pure water with higher cleanliness and flowing, and the cleaning water can be fully utilized through structural arrangement of the high and low ports, so that waste is avoided, and the cost is saved.
The treatment equipment is only suitable for the pretreatment process of silanization or silicon-zirconium compounding of the metal surface, and is not suitable for phosphating or passivation treatment of the metal surface.
The process of carrying out silanization or silicon-zirconium composite pretreatment on the metal workpiece by adopting the metal surface atomization spraying pretreatment equipment roughly comprises the following steps:
(1) hanging the metal workpiece on a production line hook, moving along a treatment box under the driving of a transmission chain, and firstly entering a degreasing section for degreasing treatment;
(2) then, entering a water washing section to carry out water washing treatment on the degreased metal workpiece;
(3) then the metal workpiece is subjected to atomization and film coating treatment in a film coating section, and then the metal workpiece is dried in a drying section to finish surface pretreatment of the metal workpiece, and then the subsequent coating process can be carried out.
In the steps (1) and (2), the degreasing and water washing treatment both adopt a liquid spraying treatment mode; in the step (3), the film coating treatment adopts an atomization spraying treatment mode.
In the step (1), when the metal workpiece is degreased, two degreasing treatments, namely pre-degreasing and main degreasing, are adopted, wherein the temperature of the degreasing liquid is controlled to be 40-45 ℃, and the total degreasing time is more than 5 minutes.
In the step (2), when the metal workpiece is washed, three washing treatments are adopted, wherein tap water is used for the first washing and the second washing, and pure water is used for the third washing; the water in the first rinsing tank and the water in the second rinsing tank do not need to be replaced every day, but the water in the third rinsing tank needs to be made of flowing pure water, so that the water in the tanks is clear and not turbid, the regular detection is realized, the pH value is kept between 5.5 and 7.0, and the optimal pH value is 6.5. For the water economy resource, reduction in production cost can be established ties each wash bowl, makes the water that overflows in the third wash bowl overflow to the second wash bowl, and the water in the second wash bowl overflows to first wash bowl, and the water in the first wash bowl overflows to sewage treatment pond.
In the step (3), when the metal workpiece is subjected to film coating treatment, an atomization spraying treatment mode is adopted, atomized and sprayed treatment liquid is suspended in a box body of the assembly line, and when the metal workpiece passes through a film coating section, the surface of the metal workpiece can adsorb the treatment liquid, so that a film coating process is completed; the treatment liquid atomized and dropped into the box body is recycled and reprocessed, and the reprocessed treatment liquid can be continuously used after being detected to be qualified. And determining the length of an atomizing area, namely the upper membrane section, and the number of pipelines and nozzles in the upper membrane section according to the flow line speed.
The atomizing nozzle is composed of a gas path and a liquid path, a treating fluid storage barrel is placed outside a treating tank, treating fluid is conveyed into a liquid path pipeline by a pressure water pump, pressure is conveyed into the gas path pipeline by an air compressor, and gas and liquid are matched to realize atomization and ejection. The flow rate of the atomizing nozzle (the outlet flow rate of the atomized liquid spray outlet 503) is controlled to be 1.5-5L/h, and the gas pressure (the pressure of the gas inlet of the atomizing nozzle) is controlled to be 0.15-0.4 MPa.
When the metal plate passes through the atomization zone, the surface of the metal plate can adsorb the treatment fluid, and then the film coating process is completed; and (4) the board does not need to be washed after the film is coated, and the board enters a drying area along with a production line to finish the pretreatment. The pretreated plate enters a coating area along with a production line to be subjected to plastic spraying or paint spraying treatment.
According to the invention, the interval between adjacent atomizing nozzles on the upper membrane section treatment liquid atomizing spray pipes is 40-60 cm, the interval between adjacent treatment liquid atomizing spray pipes is 150-200 cm, the atomizing spray pipes are connected in parallel, specifically, a control switch can be arranged on each group of pipelines, and the start and stop of each group of pipelines can be controlled according to requirements.
The atomizing nozzles on the two sides of the box body are fixed on the two sides of the vertical box body, the atomizing nozzles on the bottom side of the box body are fixed by 45 degrees in a way that the atomizing nozzles on the bottom side of the vertical box body incline to the left side, and the atomizing nozzles on the top side of the box body are fixed by 45 degrees in a way that the atomizing nozzles on the top side of the vertical box body incline to the right side, so that atomized treatment liquid can circulate in the box body. If the box is wide, when the pressure of the nozzle is difficult to achieve circulation after the treatment liquid is atomized, a plurality of air nozzles can be additionally arranged on the bottom side and the top side of the box in a direction perpendicular to the direction of the box and inclined by 45 degrees to the right or left, after the treatment liquid is atomized and sprayed, the air outlet pressure of the air nozzles is adjusted, and the atomized treatment liquid is circulated in the box.
The number of side nozzles and the number of bottom side nozzles and top side nozzles can be determined according to the height and the width of the assembly line box body; and determining the length of an atomizing area, namely the upper membrane segment, according to the linear velocity of the production line and the time required by pretreatment, and further determining the number of used pipelines.
Compared with the existing spray pretreatment, the atomization spray pretreatment process has the advantages that the treatment liquid does not generate foam in the using process, the content of metal ions in the treatment liquid cannot be increased, the treatment liquid cannot generate the phenomena of color change, turbidity and the like, the influence of groove string on the treatment liquid is avoided, the film coating quality of the treatment liquid is improved, and the service life of the treatment liquid is prolonged; the atomized and recovered treatment liquid can be continuously used after being treated and detected to be qualified. The process flow is simplified, the treatment liquid waste caused by pollution of the treatment liquid is avoided, the influence caused by groove crossing is eliminated, the film coating quality and the film coating uniformity of the treatment liquid are improved, the cleaning water is saved, the use efficiency of the cleaning water is improved, and the production cost is effectively reduced.
The invention is further illustrated by the following specific application examples:
example 1
And (4) performing silanization treatment by using a silane treatment liquid.
Pipeline parameters: the linear speed of the production line is 5 m/s; the height of the treatment box body is 2.4m, and the width of the treatment box body is 1.5 m.
Hanging a metal plate or a workpiece to be pretreated on a production line, driving the metal plate or the workpiece to be sequentially subjected to pre-degreasing, main degreasing and three-washing treatment by the production line, and adopting a spraying mode in the treatment process. And then the degreased and washed metal plate or workpiece is subjected to film coating treatment, and the prepared silane treatment solution is poured into a treatment solution storage barrel. Inserting one end of a main treating fluid conveying pipeline into silane treating fluid, starting a pressure pump, then starting an air compressor, regulating output air pressure to be 0.2Mpa through a pressure regulating valve, and regulating an atomizing nozzle to control atomizing flow to be 1.8L/h; when the assembly line drives the metal plate or the workpiece to pass through the atomization zone, the silane treatment liquid is adsorbed on the surface of the metal plate or the workpiece, and then the film coating process is completed. After the film coating is finished, water washing is not needed, and the metal plate or the workpiece enters a drying area along with a production line to finish the pretreatment. The silane treatment fluid atomized and dropped into the tank body flows into the treatment fluid collecting tank through the treatment fluid underflow port, and is recovered and reprocessed.
The total time of pre-degreasing and main degreasing is kept above 5 minutes, and the length of a total degreasing area, the number of pipelines and nozzles are determined according to the speed of a production line; the water washing adopts three washing treatments, wherein tap water is used for the first washing and the second washing, and pure water is used for the third washing; the water in the first rinsing bath and the second rinsing bath does not need to be replaced every day, but the third rinsing bath uses flowing pure water, so that the water in the baths is clear and not turbid, the regular detection is realized, and the pH value is kept to be less than or equal to 7.0; for the water economy resource, reduction in production cost can be established ties each wash bowl, makes the water that the third wash bowl spilled over flow into the second wash bowl, and the water that the second wash bowl spilled over flows into first wash bowl, and the water that first wash bowl spilled over overflows to sewer line and gets into sewage treatment pond.
Adopting silane treatment liquid, wherein the treatment time is 1 minute, and the length of an atomization zone, namely the upper film segment is kept about 5 m; 3 groups of pipelines are arranged in the box body at intervals of 180 cm; 12 atomizing nozzles are arranged on each group of pipelines, the side surfaces are respectively 4 (the interval is 50cm, the bottom end is reserved with 40cm, the top end is reserved with 50cm), the bottom side is 2 (the interval is 50cm, the two ends are respectively reserved with 50cm), the top side is 2 (the top side is positioned at the tail end of the pipeline), and the bottom side and the top side nozzles are respectively inclined by 45 degrees towards the right and the left.
Example 2
And (3) carrying out silicon-zirconium composite treatment by adopting a silicon-zirconium composite treatment solution.
Pipeline parameters: the linear speed of the production line is 4 m/s; the height of the box body is 2.2m, and the width of the box body is 1.3 m;
the output air pressure is 0.28Mpa, and the atomizing flow is controlled to be 3L/h by adjusting the atomizing nozzle;
adopt silicon zirconium composite treatment fluid, the processing time is 3 minutes, atomizing district length keeps about 12m, installs 6 groups of pipelines in the box, the interval is 200cm, arrange 12 atomizing nozzles on every group pipeline, the side respectively 4 (interval 45cm, 35cm are stayed to the bottom, 50cm are stayed at the top), 2 (interval 50cm, both ends respectively stay 40cm) of bottom side, 2 (being located the top side pipeline end) of top side, bottom side, top side nozzle left, right slope 45.
The rest is the same as example 1.
Claims (6)
1. The utility model provides a metal surface atomizing sprays former treatment facility which characterized in that: the device comprises a processing box, wherein a transmission chain for driving a metal workpiece to move in the processing box is arranged at the top of the processing box along the extension direction of the processing box, and the inside of the processing box is sequentially divided into a degreasing section, a washing section and a film feeding section from front to back; a plurality of treatment liquid atomization spray pipes are arranged in the upper membrane section in parallel at intervals, a plurality of treatment liquid atomization nozzles are arranged on the treatment liquid atomization spray pipes, each treatment liquid atomization spray pipe comprises a treatment liquid conveying branch pipe and a gas conveying branch pipe, each treatment liquid atomization nozzle comprises a gas inlet, a liquid inlet and an atomized liquid spraying port, each gas inlet is communicated with the corresponding gas conveying branch pipe, each liquid inlet is communicated with the corresponding treatment liquid conveying branch pipe, a treatment liquid storage barrel is arranged on the outer side of the upper membrane section of the treatment box, each treatment liquid storage barrel is communicated with the corresponding treatment liquid conveying branch pipe through a treatment liquid conveying main pipe, a pressure pump is arranged on each treatment liquid conveying main pipe, each gas conveying branch pipe is communicated with the corresponding gas conveying branch pipe, and an air compressor is arranged on each gas conveying main pipe; the treatment liquid atomization spray pipes are arranged along the inner wall of the box body of the treatment box, and the treatment liquid atomization nozzles are arranged at intervals along the treatment liquid atomization spray pipes, wherein the treatment liquid atomization nozzles arranged at the tops of the treatment liquid atomization spray pipes are fixed by inclining 45 degrees from the top side of the box body to the right side, the treatment liquid atomization nozzles arranged at the bottoms of the treatment liquid atomization spray pipes are fixed by inclining 45 degrees from the bottom side of the box body to the left side, the treatment liquid atomization nozzles arranged at the left side of the treatment liquid atomization spray pipes are fixed by inclining 15 degrees from the left side of the box body or are fixed by inclining 10 degrees from the right side of the box body, and the treatment liquid sprayed by atomization is enabled to circulate in the box body of the treatment box; a plurality of first air nozzles are additionally arranged on the top side of the box body and incline 45 degrees to the right side in the direction vertical to the box body, a plurality of second air nozzles are additionally arranged on the bottom side of the box body and incline 45 degrees to the left side in the direction vertical to the box body, and the first air nozzles and the second air nozzles are communicated with the gas conveying branch pipes.
2. The metal surface atomization spray pretreatment equipment of claim 1, which is characterized in that: the lower part of the membrane section on the treatment box is provided with a treatment fluid collecting tank, and the bottom of the membrane section on the treatment box is provided with strip-shaped treatment fluid underflow ports at intervals.
3. The metal surface atomization spray pretreatment equipment of claim 1, which is characterized in that: a plurality of degreasing liquid spraying pipes are arranged in the degreasing section in parallel at intervals, a plurality of degreasing liquid nozzles are arranged on the degreasing liquid spraying pipes, a degreasing tank is arranged below the degreasing section of the treatment box and is connected with the degreasing liquid spraying pipes through a degreasing liquid conveying main pipeline, and strip-shaped degreasing liquid bottom flow ports are arranged at intervals at the bottom of the degreasing section of the treatment box; a plurality of washing spray pipes are arranged in the washing section in parallel at intervals, a plurality of cleaning water nozzles are arranged on the washing spray pipes, a washing tank is arranged below the washing section of the treatment box and is connected with the washing spray pipes through a main cleaning water conveying pipeline, and strip-shaped spray water underflow openings are arranged at intervals at the bottom of the washing section of the treatment box; the degreasing fluid spray pipes and the water washing spray pipes are arranged along the inner wall of the box body of the treatment box, the degreasing fluid nozzles are arranged at intervals along the degreasing fluid spray pipes, and the degreasing fluid nozzles and the cleaning water nozzles are fixed in a mode of being perpendicular to the current wall surface of the box body.
4. The metal surface atomization spray pretreatment equipment of claim 3, which is characterized in that: the degreasing section is provided with the degreasing spray pipe in advance including degreasing section and main degreasing section in the inside of degreasing section in advance, is provided with main degreasing spray pipe in the inside of main degreasing section, the degreasing bath is including degreasing groove and main degreasing bath in advance, degreasing spray pipe and degreasing bath intercommunication in advance, main degreasing spray pipe and main degreasing bath intercommunication, bar degreasing solution underflow opening includes degreasing solution underflow opening and main degreasing solution underflow opening in advance, and degreasing solution underflow opening is located the top in degreasing groove in advance, and main degreasing solution underflow opening is located the top in main degreasing bath.
5. The metal surface atomization spray pretreatment equipment of claim 3, which is characterized in that: the water washing section comprises a first water washing section, a second water washing section and a third water washing section, a first water washing spray pipe is arranged inside the first water washing section, a second water washing spray pipe is arranged inside the second water washing section, a third water washing spray pipe is arranged inside the third water washing section, the water washing tank comprises a first water washing tank, a second water washing tank and a third water washing tank, the first water washing spray pipe is communicated with the first water washing tank, the second water washing spray pipe is communicated with the second water washing tank, the third water washing spray pipe is communicated with the third water washing tank, the strip-shaped spray water underflow opening comprises a first spray water underflow opening, a second spray water underflow opening and a third spray water underflow opening, the first spray water underflow opening is positioned above the first water washing tank, the second spray water underflow opening is positioned above the second water washing tank, and the third spray water underflow opening is positioned above the third water washing tank; the delivery port of third wash bowl passes through the water inlet intercommunication of first overflow pipe with the second wash bowl, and the delivery port of second wash bowl passes through the water inlet intercommunication of second overflow pipe with the first wash bowl, and the delivery port of first wash bowl communicates the sewer line, the delivery port of third wash bowl, the delivery port of second wash bowl and the highly reducing in proper order of the delivery port of first wash bowl.
6. The metal surface atomization spray pretreatment equipment of claim 1, which is characterized in that: the transmission chain is fixed through the support frame, a hook used for hanging a metal workpiece is hung on the transmission chain, and an opening which is convenient for the hook to stretch into the treatment box is formed in the center of the top of the treatment box.
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| CN108655083B (en) * | 2018-08-06 | 2024-03-12 | 奎克化学（中国）有限公司 | Spray type cleaning machine |
| CN109482560A (en) * | 2018-11-30 | 2019-03-19 | 江***力机械有限公司 | Automatic spray paint production line high-efficiency cleaning pretreatment unit and its pretreating process |
| CN110860416A (en) * | 2019-11-21 | 2020-03-06 | 江苏滨杰科技有限公司 | Color steel plate drying and spraying machine integrating alkali washing, degreasing and drying |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202028508U (en) * | 2011-03-24 | 2011-11-09 | 常州市骠马涂装***工程有限公司 | Silane surface processing equipment before coating |
| CN204265848U (en) * | 2014-11-28 | 2015-04-15 | 天津市武清区金铭喷涂有限公司 | A kind of galvanized steel sheet surface silanization treatment production line |
| CN105149193A (en) * | 2015-09-12 | 2015-12-16 | 杭州萧山金润表面活性材料厂 | Metal surface coating pretreatment process |
| CN204874737U (en) * | 2015-08-24 | 2015-12-16 | 青岛格瑞烯金属防护科技有限公司 | Metal surface preliminary treatment production line |
-
2017
- 2017-11-29 CN CN201711222829.6A patent/CN107876350B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202028508U (en) * | 2011-03-24 | 2011-11-09 | 常州市骠马涂装***工程有限公司 | Silane surface processing equipment before coating |
| CN204265848U (en) * | 2014-11-28 | 2015-04-15 | 天津市武清区金铭喷涂有限公司 | A kind of galvanized steel sheet surface silanization treatment production line |
| CN204874737U (en) * | 2015-08-24 | 2015-12-16 | 青岛格瑞烯金属防护科技有限公司 | Metal surface preliminary treatment production line |
| CN105149193A (en) * | 2015-09-12 | 2015-12-16 | 杭州萧山金润表面活性材料厂 | Metal surface coating pretreatment process |
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