CN210585729U - Coating production line for hot-dip galvanized resin powder of thin plate - Google Patents
Coating production line for hot-dip galvanized resin powder of thin plate Download PDFInfo
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- CN210585729U CN210585729U CN201921112283.3U CN201921112283U CN210585729U CN 210585729 U CN210585729 U CN 210585729U CN 201921112283 U CN201921112283 U CN 201921112283U CN 210585729 U CN210585729 U CN 210585729U
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Abstract
The utility model relates to a sheet metal hot-galvanize resin powder coating line belongs to steel sheet galvanizing application equipment technical field. In order to solve the defects of large occupied area, high energy consumption, high production cost and no environmental protection of two production lines, the thin plate hot galvanizing coating process which is small in occupied area, low in energy consumption, low in production cost and environment-friendly is provided, the original two production lines are combined into one production line, and the process is efficient, energy-saving and environment-friendly. The production line comprises an automatic unreeling machine, a phosphating tank, a cleaning tank, a heating furnace, a hot galvanizing tank, a cooling tank, an electrostatic spraying tank and a drying tank.
Description
Technical Field
The invention relates to a hot galvanizing coating production line, in particular to a thin plate hot galvanizing resin powder coating production line, and belongs to the technical field of steel plate hot galvanizing coating equipment.
Background
Along with continuous deepening of reform and development in the Chinese industry, new materials and new processes are continuously created, some traditional processes cannot follow the development of the society, and the hot galvanizing and color coating processes of the color steel plate are finished by a hot galvanizing production line, a paint production line and two production lines respectively. The hot galvanizing process of the color steel plate comprises the following steps: unreeling, phosphating, cleaning, preheating, galvanizing, cooling, air drying, coating and reeling to finish the hot galvanizing process, wherein the galvanized plate passes through a paint production line: unreeling, phosphating to remove a film coating agent, rolling paint, drying and reeling to finish the paint coating process.
Two times of phosphating and two times of environmental protection treatment can give off a lot of harmful gas during paint baking, thus easily causing the problem of environmental protection not reaching the standard. The equipment of two assembly lines occupies a large area, consumes much energy, uses more manpower and has higher production cost.
Disclosure of Invention
The invention aims to solve the defects of large occupied area, high energy consumption, high production cost and no environmental protection of two production lines, and provides the thin plate hot galvanizing coating process which is small in occupied area, low in energy consumption, low in production cost and environment-friendly.
The coating production line for the hot-dip galvanized resin powder of the thin plate is realized by the following technical scheme:
a coating production line of hot galvanizing resin powder for thin plates is characterized in that: the automatic winding machine comprises an automatic winding machine 1, wherein the output end of the automatic winding machine 1 is connected with a phosphating tank 2, the output end of the phosphating tank 2 is connected with a cleaning tank 3, the output end of the cleaning tank 3 is connected with a heating box 4, the output end of the heating box 4 is connected with a hot galvanizing tank 5, the output end of the hot galvanizing tank 5 is connected with a cooling tank 6, the output end of the cooling tank 6 is connected with an electrostatic spraying box 7, the output end of the electrostatic spraying box 7 is connected with a drying box 8, and the output end of the drying box 8 is connected with an automatic winding machine 9;
in order to accelerate cooling, a development of the invention is: a cooling box 10 is arranged between the drying box 8 and the automatic winding machine 9;
in order to ensure that the whole equipment can work constantly and continuously at the linear speed in operation, the invention has another improvement that: a loosening and tightening frame 11 is arranged between the cooling box and the automatic winding machine 9, and the loosening and tightening frame 11 is arranged between the cleaning tank 3 and the heating box 4;
the electrostatic spraying box 7 comprises a box body 7-1, wherein an upper layer of carrier roller 7-2 for transporting thin plates and a lower layer of carrier roller 7-2 for transporting thin plates are arranged in the box body 7-1, guide rollers 7-3 for transporting the thin plates are respectively arranged between the upper layer of carrier roller and the lower layer of carrier roller and at the output end of the upper layer of drag roller, an electrostatic spray gun 7-4 and a dryer 7-5 are respectively arranged above the upper layer of carrier roller and the lower layer of carrier roller at intervals, air boxes 7-6 are respectively arranged between the spray gun 7-4 and the dryer 7-5 and at the output end of the upper layer of dryer, a powder supply device is arranged at the input end of the electrostatic spray gun 7-;
an electrostatic spray gun 7-4 and a dryer 7-5 are arranged above the upper layer of guide roller and the lower layer of guide roller at intervals, and air boxes 7-6 are arranged between the spray gun 7-4 and the dryer 7-5 and at the output end of the upper layer of dryer respectively, which means that the electrostatic spray gun 7-4, the air box 7-6, the dryer 7-5 and the air box 7-6 are arranged above the lower layer of guide roller at the inlet of the box body in sequence, and then the electrostatic spray gun 7-4, the air box 7-6, the dryer 7-5 and the air box 7-6 are arranged above the upper layer of guide roller in sequence;
the electrostatic spray gun 7-4 is a suspended cup type electrostatic spray gun; the air box 7-6 comprises an upper air knife with the height consistent with that of the electrostatic spray gun 7-4 and the dryer 7-5 and a lower air knife below the lower layer carrier roller; the dryer 7-5 is a far infrared directional radiator;
the powder supply device is arranged outside the box body 7-1 and comprises a powder supply cylinder 7-7, the output end of the powder supply cylinder 7-7 is provided with a vulcanizing tank 7-8, and an output pipeline of the vulcanizing tank 7-8 is provided with an electrostatic spray gun 7-4;
the powder recovery device is arranged at the lower part of the box body 7-1 and comprises a dust collection recovery pipeline 7-9 arranged below the carrier roller, a separator 7-12 is arranged at the other end of the dust collection recovery pipeline 7-9, a dust removal box 7-10 is arranged at the output end of the separator 7-12, a medium pressure fan 7-11 is arranged at the output end of the dust removal box 7-10, and an automatic discharge port at the lower end of the separator 7-12 is connected with the input end of the powder supply cylinder 7-7;
the dust removal box 7-10 is a separated dust removal box, and the separator 7-12 is a cyclone separator.
The coating production line for the hot-dip galvanized resin powder of the thin plate integrates the original two production lines into one production line, the film is coated after galvanization is removed, the process of removing the coated film by phosphorization before coating is needed, the winding and unwinding of the two lines are changed from 2 sets to 1 set respectively, a brand-new production line is formed, corresponding production equipment is reduced, the use area of a factory building is saved, and the factory management cost is reduced; meanwhile, an electrostatic spraying box is added, paint which generates harmful gas is changed into environment-friendly electrostatic spraying of resin powder, and the resin powder spraying is mainly characterized by environment friendliness, high powder utilization rate, strong adhesive force, high corrosion resistance and attractive appearance. The on-line spraying rate is as high as 90-98%, while the utilization rate of paint and other liquid is only 30-60%. The resin powder is sprayed, and is a very environment-friendly coating material due to no toxicity and no odor, so that the coating material is energy-saving and environment-friendly; be equipped with powder recovery unit on the electrostatic spraying case, the powder spraying in-process, some powder is not adsorbed by the face and floats at the incasement, and powder recovery unit retrieves showy powder, and the powder of retrieving is by carrying repeatedly use in supplying the powder device again, and like this and practice thrift the cost by having solved the environmental protection problem. Because the spraying and the paint coating are two different processes, the whole mechanical speed is improved by 40 percent, so that the method is efficient, energy-saving and environment-friendly.
Compared with the traditional hot galvanizing and painting processes, the power of the hot galvanizing coating process for the thin plate is reduced by 40 percent, the labor is saved by 45 percent, the floor area of equipment is reduced, and the factory management cost is saved by half.
Drawings
FIG. 1: the invention is a production line flow diagram;
FIG. 2: FIG. 1 is a schematic view of the structure from an automatic unreeling machine to a heating box;
FIG. 3: FIG. 1 is a schematic view of the structure from a hot-dip galvanizing bath to an electrostatic spraying tank;
FIG. 4: FIG. 1 is a schematic structural view from a drying box to an automatic winder;
FIG. 5: FIG. 1 is a schematic diagram of the internal structure of the electrostatic spraying tank;
FIG. 6: FIG. 2 is a plan view of the powder supply means and the powder recovery means outside the case;
FIG. 7: the structure from the cleaning tank to the heating box in the embodiment 2 is schematically shown;
FIG. 8: the schematic structural diagram from the drying box to the automatic winding machine in embodiment 2;
1. the automatic unwinding machine comprises an automatic unwinding machine, 2, a phosphating tank, 3, a cleaning tank, 4, a heating box, 5, a hot galvanizing tank, 6, a cooling tank, 7, an electrostatic spraying box, 7-1, a box body, 7-2, a carrier roller, 7-3, a guide roller, 7-4, an electrostatic spray gun, 7-5, a dryer, 7-6, a wind box, 7-7, a powder supply cylinder, 7-8, a vulcanizing box, 7-9, a dust collection and recovery pipeline, 7-10, a dust removal box, 7-11, a medium pressure fan, 7-12, a separator, 8, a drying box, 9, an automatic winding machine, 10, a cooling box, 11 and a take-up stand.
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 inventive step, are within the scope of the present invention.
Example 1. A thin plate hot galvanizing resin powder coating production line refers to figures 1-4 and comprises an automatic unreeling machine 1, wherein the output end of the automatic unreeling machine 1 is connected with a phosphating tank 2, the output end of the phosphating tank 2 is connected with a cleaning tank 3, the output end of the cleaning tank 3 is connected with a heating box 4, the output end of the heating tank 4 is connected with a hot galvanizing tank 5, the output end of the hot galvanizing tank 5 is connected with a cooling tank 6, the output end of the cooling tank 6 is connected with an electrostatic spraying box 7, the output end of the electrostatic spraying box 7 is connected with a drying box 8, and the output end of the drying box 8 is connected with an automatic reeling machine 1;
the electrostatic spraying box 7, referring to fig. 5, comprises a box body 7-1, wherein an upper layer and a lower layer of carrier rollers 7-2 for transporting thin plates are arranged in the box body 7-1, guide rollers 7-3 for transporting the thin plates are respectively arranged between the upper layer of carrier rollers and the lower layer of carrier rollers and at the output end of the upper layer of drag rollers, electrostatic spray guns 7-4 and dryers 7-5 are respectively arranged above the upper layer of guide rollers and the lower layer of guide rollers at intervals, air boxes 7-6 are respectively arranged between the spray guns 7-4 and the dryers 7-5 and at the output end of the upper layer of dryers, a powder supply device is arranged at the input end of the electrostatic spray guns 7-4, a powder recovery device is arranged below,
an electrostatic spray gun 7-4 and a dryer 7-5 are arranged above the upper layer of guide roller and the lower layer of guide roller at intervals, and air boxes 7-6 are arranged between the spray gun 7-4 and the dryer 7-5 and at the output end of the upper layer of dryer respectively, which means that the electrostatic spray gun 7-4, the air box 7-6, the dryer 7-5 and the air box 7-6 are arranged above the lower layer of guide roller at the inlet of the box body in sequence, and then the electrostatic spray gun 7-4, the air box 7-6, the dryer 7-5 and the air box 7-6 are arranged above the upper layer of guide roller in sequence;
the electrostatic spray gun 7-4 is a suspended cup type electrostatic spray gun; the air box 7-6 comprises an upper air knife with the height consistent with that of the electrostatic spray gun 7-4 and the dryer 7-5 and a lower air knife below the lower layer carrier roller; the dryer 7-5 is a far infrared directional radiator;
the powder supply device is arranged outside the box body 7-1, and comprises a powder supply cylinder 7-7, the output end of the powder supply cylinder 7-7 is provided with a vulcanizing tank 7-8, and an output pipeline of the vulcanizing tank 7-8 is provided with an electrostatic spray gun 7-4;
the powder recovery device is arranged at the lower part of the box body 7-1, and comprises a dust collection recovery pipeline 7-9 arranged below the carrier roller, a separator 7-12 is arranged at the other end of the dust collection recovery pipeline 7-9, a dust removal box 7-10 is arranged at the output end of the separator 7-12, a medium pressure fan 7-11 is arranged at the output end of the dust removal box 7-10, the power of the medium pressure fan is 45KW, and an automatic discharge outlet at the lower end of the separator 7-12 is connected with the input end of the powder supply cylinder 7-7;
the dust removal box 7-10 is a separated dust removal box, and the separator 7-12 is a cyclone separator.
Example 2. A coating line of hot dip galvanized resin powder for thin plates refers to FIGS. 1-3 and 7, and has a structure substantially the same as that of example 1, except that: a cooling box 10 is arranged between the drying box 8 and the automatic winding machine 9; an elastic frame 11 is installed between the cooling tank and the automatic winding machine 9, and the elastic frame 11 is installed between the cleaning tank 3 and the heating tank 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A thin plate hot galvanizing resin powder coating production line is characterized in that: including automatic unreeling machine (1), the output of automatic unreeling machine (1) is connected with bonderizing groove (2), the output of bonderizing groove (2) is connected with washing tank (3), the output of washing tank (3) is connected with heating cabinet (4), the output of heating cabinet (4) is connected with hot galvanizing bath (5), the output of hot galvanizing bath (5) is connected with cooling bath (6), the output of cooling bath (6) is connected with electrostatic spraying case (7), the output of electrostatic spraying case (7) is connected with stoving case (8), the output of stoving case (8) is connected with automatic winding machine (9).
2. The coating line of hot-dip galvanized resin powder for thin plates according to claim 1, characterized in that: a cooling box (10) is arranged between the drying box (8) and the automatic winding machine (9); install elasticity frame (11) between cooler bin and automatic winding machine (9), install elasticity frame (11) between washing tank (3) and heating cabinet (4).
3. The coating line for hot-dip galvanized resin powder on a thin plate according to claim 1 or 2, characterized in that: electrostatic spraying case (7), including box (7-1), bearing roller (7-2) of two-layer transportation sheet metal about being equipped with in box (7-1), between upper bearing roller and the lower floor bearing roller, deflector roll (7-3) of carrying the sheet metal are all installed to the output of upper tow roll, upper and lower two-layer deflector roll top is all at the interval and is equipped with electrostatic spray gun (7-4), drying apparatus (7-5), bellows (7-6) are all installed to the output of upper drying apparatus between spray gun (7-4) and drying apparatus (7-5), the input of electrostatic spray gun (7-4) is installed and is supplied the powder device, and powder recovery unit is installed to the bearing roller below of its below.
4. The coating line of hot-dip galvanized resin powder for thin plates according to claim 3, characterized in that: the electrostatic spray gun (7-4) is a suspended cup type electrostatic spray gun, and the air box (7-6) comprises an upper air knife with the same height as the electrostatic spray gun (7-4) and the dryer (7-5) and a lower air knife below the lower layer carrier roller; the dryer (7-5) is a far infrared directional radiator.
5. The coating line of hot-dip galvanized resin powder for thin plates according to claim 3, characterized in that: the powder supply device is arranged outside the box body (7-1) and comprises a powder supply cylinder (7-7), the output end of the powder supply cylinder (7-7) is provided with a vulcanizing box (7-8), and an output pipeline of the vulcanizing box (7-8) is provided with an electrostatic spray gun (7-4).
6. The coating line of hot-dip galvanized resin powder for thin plates according to claim 3, characterized in that: the powder recovery device is arranged on the lower portion of the box body (7-1) and comprises a dust collection recovery pipeline (7-9) arranged below the carrier roller, a separator (7-12) is arranged at the other end of the dust collection recovery pipeline (7-9), a dust removal box (7-10) is arranged at the output end of the separator (7-12), a fan (7-11) is arranged at the output end of the dust removal box, and an automatic discharge port at the lower end of the separator (7-12) is connected with the input end of a powder supply cylinder (7-7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921112283.3U CN210585729U (en) | 2019-07-16 | 2019-07-16 | Coating production line for hot-dip galvanized resin powder of thin plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921112283.3U CN210585729U (en) | 2019-07-16 | 2019-07-16 | Coating production line for hot-dip galvanized resin powder of thin plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252630A (en) * | 2019-07-16 | 2019-09-20 | 山东圣士达环保科技有限公司 | A kind of thin plate hot galvanizing toner paint line and its production technology |
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2019
- 2019-07-16 CN CN201921112283.3U patent/CN210585729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252630A (en) * | 2019-07-16 | 2019-09-20 | 山东圣士达环保科技有限公司 | A kind of thin plate hot galvanizing toner paint line and its production technology |
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