Preheating type galvanizing device for steel wire machining

Abstract

The invention relates to the technical field of galvanizing devices, in particular to a preheating type steel wire machining galvanizing device which comprises a rack, a galvanizing pool, a wiping assembly, a preheating assembly, an air cooling assembly and an air source part. The wiping assembly comprises a plurality of first wiping pipelines, the preheating assembly comprises a plurality of preheating pipelines, and the air cooling assembly comprises a plurality of air cooling pipelines; and the first wiping pipeline, the preheating pipeline and the air cooling pipeline are in one-to-one correspondence with the steel wires. The steel wire penetrates through the galvanizing pool and then sequentially penetrates through the first wiping pipeline, the preheating pipeline and the air cooling pipeline which are correspondingly arranged from bottom to top. According to the preheating type galvanizing device for steel wire machining, the steel wire is wiped through spiral hot air, a zinc layer on the surface of the steel wire can be in a molten state, the zinc layer is prevented from being rapidly cooled and solidified due to low temperature, the spiral hot air flows in the tangential direction of the zinc layer, the surface of the steel wire can be completely covered, and the galvanizing quality of the steel wire is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a galvanizing device for steel wire processing. BACKGROUND

[0002] Steel wire is a widely used basic material in industrial production, and its corrosion resistance directly affects the service life and safety of the product. In order to improve the corrosion resistance of steel wire, the industry generally uses hot-dip galvanizing process to treat the surface of steel wire, which covers a layer of zinc on the surface of steel wire to form a reliable corrosion barrier. The production process of steel wire hot-dip galvanizing mainly includes pretreatment, solvent treatment, hot-dip zinc and take-up, etc. In the pretreatment stage, the surface of the steel wire is pickled and rusted to remove impurities and oxide layers; then a solvent containing ammonium chloride is coated on the surface of the steel wire and dried, and then the steel wire is immersed in molten zinc to complete hot-dip zinc, and finally a zinc layer is formed on the surface of the steel wire.

[0003] After the hot-dip zinc process, the zinc layer on the surface of the steel wire is usually uneven in thickness and has excess zinc, which needs to be removed by wiping to ensure the uniformity of the zinc layer thickness and improve the galvanizing quality. At present, the industry commonly uses gas wiping to complete this process, for example, Chinese patent CN110172659B discloses a steel wire non-contact gas wiping galvanizing device, which is provided with a strip-shaped through hole on the gas collecting box in the transverse direction, a first fixed bolt is slidably arranged in the strip-shaped through hole, the first fixed bolt passes through the strip-shaped through hole and is locked on the fixed frame, one end of the connecting pipe is communicated with the gas collecting box, and the gas knife is communicated with the other end of the connecting pipe, so that the steel wire and the gas knife are more reasonably arranged, the outer surface of the steel wire is completely contacted with the gas, and the wiping effect and the production quality of the steel wire are ensured. However, when the steel wire is just completed hot-dip zinc, the surface zinc layer is in a molten state, but the gas used for wiping is usually at room temperature. After the gas contacts with the high-temperature zinc layer, the zinc layer will quickly cool and solidify, making it difficult to completely wipe off the excess zinc layer. At the same time, the original zinc layer thickness after galvanizing is different, and the cooled and solidified zinc layer will further exacerbate the uneven thickness problem, resulting in poor wiping effect, poor zinc layer thickness consistency and serious impact on the galvanizing quality of the steel wire. SUMMARY

[0004] The application provides a preheating type galvanizing device for steel wire processing, which solves the problem that the existing galvanizing device is prone to cause rapid cooling and solidification of the zinc layer due to low gas temperature when wiping the excess zinc layer on the surface of the steel wire after galvanizing, resulting in poor wiping effect and uneven zinc layer thickness.

[0005] The preheating type galvanizing device for steel wire processing adopts the following technical scheme: a preheating type galvanizing device for steel wire processing, comprising a rack, a galvanizing pool, a wiping assembly, a preheating assembly, an air cooling assembly and an air source piece; the galvanizing pool, the wiping assembly, the preheating assembly and the air cooling assembly are sequentially arranged in the vertical direction on the rack, and the air cooling assembly is located above the galvanizing pool, and the inside of the galvanizing pool has zinc liquid; the wiping assembly comprises a plurality of first wiping pipes, the preheating assembly comprises a plurality of preheating pipes, and the air cooling assembly comprises a plurality of air cooling pipes; the first wiping pipes, the preheating pipes and the air cooling pipes are arranged one by one corresponding to the steel wire; the steel wire sequentially passes through the first wiping pipes, the preheating pipes and the air cooling pipes corresponding to the steel wire from bottom to top after passing through the galvanizing pool; the air source piece is installed on the rack and is used for sending air to the air cooling pipes, the preheating pipes and the air cooling pipes corresponding to the preheating pipes are communicated, the pipe diameter of the preheating pipes is greater than that of the air cooling pipes, the first wiping pipes are provided with first air ports in the tangential direction of the first wiping pipes, and the preheating pipes are connected with the first air ports of the first wiping pipes through an air pump, a connecting pipe and the first air ports.

[0006] Further, the wiping assembly further comprises second wiping pipes and third wiping pipes, the first wiping pipes, the second wiping pipes and the third wiping pipes are sequentially arranged in the vertical direction, the first wiping pipes are located above the third wiping pipes, and the inner diameters of the first wiping pipes, the second wiping pipes and the third wiping pipes gradually increase; the second wiping pipes are provided with second air ports in the tangential direction of the second wiping pipes, the third wiping pipes are provided with third air ports in the tangential direction of the third wiping pipes, and the first air ports, the second air ports and the third air ports are communicated with the connecting pipe through branch pipes; the steel wire sequentially passes through the third wiping pipes, the second wiping pipes, the first wiping pipes, the preheating pipes and the air cooling pipes corresponding to the steel wire from bottom to top after passing through the galvanizing pool.

[0007] Further, each branch pipe is provided with an electric heating wire.

[0008] Further, a water cooling assembly is further included, the water cooling assembly comprises a cooling water pool, the cooling water pool is located above the air cooling pipes, and the cooling water pool has cooling water; the steel wire sequentially passes through the third wiping pipes, the second wiping pipes, the first wiping pipes, the preheating pipes, the air cooling pipes and the cooling water pool corresponding to the steel wire from bottom to top after passing through the galvanizing pool.

[0009] Further, the water cooling assembly further comprises a water collecting pool, the water collecting pool is located between the air cooling pipes and the cooling water pool, the water collecting pool and the cooling water pool are communicated, and the steel wire sequentially passes through the third wiping pipes, the second wiping pipes, the first wiping pipes, the preheating pipes, the air cooling pipes, the water collecting pool and the cooling water pool corresponding to the steel wire from bottom to top after passing through the galvanizing pool.

[0010] Further, the water collecting pool and the cooling water pool are connected through a water pipe and a water pump.

[0011] Furthermore, the cooling water pool and the collection pool are connected by water-cooled pipes, which are installed vertically and have multiple outlets in the circumferential direction.

[0012] Furthermore, a baffle plate is installed inside the water-cooled pipe, which can guide the water entering the water-cooled pipe to the outlet.

[0013] Furthermore, a water guide trough is provided between the water-cooled pipe and the air-cooled pipe, and a jet pipe is provided at the lower end of the water collection tank. The jet pipe is set towards the water guide trough and is used to spray airflow into the water guide trough.

[0014] Furthermore, an air-cooled box is installed between the air source component and the air-cooled pipe, and the air-cooled box passes through the cooling water pool.

[0015] The beneficial effects of this invention are as follows: The preheated steel wire galvanizing device of this invention, through the arrangement of a frame, galvanizing tank, wiping assembly, preheating assembly, air-cooling assembly, and air source component, allows the steel wire to pass through the galvanizing tank and then vertically through corresponding first wiping pipe, preheating pipe, and air-cooling pipe. Air is supplied to the air-cooling pipe via the air source component. After passing through the air-cooling pipe, the gas enters the preheating pipe. By making the diameter of the preheating pipe larger than that of the air-cooling pipe, the gas flow rate slows down upon entering the preheating pipe, extending the gas residence time. During this process, the gas exchanges heat with the galvanized steel wire, preheating the gas. The preheated gas is then used as the wiping air source and sent to the first wiping pipe, achieving energy recovery and reuse. When the steel wire moves from bottom to top into the first wiping pipe, the gas entering from the first air inlet of the first wiping pipe removes excess zinc from the surface of the steel wire. Furthermore, since the first air inlet is set along the tangential direction of the first wiping pipe, the gas will flow tangentially along the inner wall of the first wiping pipe, that is, the gas will flow in a spiral. Using spiral hot air to wipe the steel wire can keep the zinc layer on the surface of the steel wire in a molten state, avoiding the zinc layer from rapidly cooling and solidifying due to low temperature, thus improving the wiping effect. Moreover, the spiral hot air will flow along the tangential direction of the zinc layer, which can fully cover the surface of the steel wire, improve the wiping effect, increase the uniformity of the zinc layer thickness, and improve the galvanizing quality of the steel wire. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a galvanizing apparatus for preheating steel wire processing according to the present invention; Figure 2 Figure 1 is a side view of the overall structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 3 Figure 2 is a sectional view of the overall structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 4 Figure 3 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application. Figure 3 Figure 4 is an enlarged view of the structure at A in Figure 3. Figure 5 Figure 5 is a sectional view of the overall structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application from another perspective. Figure 6 Figure 6 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application. Figure 5 Figure 7 is an enlarged view of the structure at B in Figure 6. Figure 7 Figure 8 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application. Figure 6 Figure 9 is an enlarged view of the structure at C in Figure 8. Figure 8 Figure 10 is a schematic view of the partial structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application. Figure 9 Figure 11 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application. Figure 8

[0018] Figure 1 is a side view of the overall structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 2 is a sectional view of the overall structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 3 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 4 is an enlarged view of the structure at A in Figure 3; Figure 5 is a sectional view of the overall structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application from another perspective; Figure 6 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 7 is an enlarged view of the structure at B in Figure 6; Figure 8 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 9 is an enlarged view of the structure at C in Figure 8; Figure 10 is a schematic view of the partial structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 11 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application; Figure 12 is a sectional view of the structure of an embodiment of the preheating type galvanizing device for steel wire processing according to the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0020] An embodiment of the preheating type galvanizing device for steel wire processing according to the present application is shown in Figure 1. Figures 1 to 9 An embodiment of the preheating type galvanizing device for steel wire processing according to the present application is shown in Figure 1.​

[0021] The preheating type galvanizing device for steel wire processing comprises a rack 100, a galvanizing pool 200, a wiping assembly 300, a preheating assembly 400, an air cooling assembly 500 and an air source 600. The galvanizing pool 200, the wiping assembly 300, the preheating assembly 400 and the air cooling assembly 500 are sequentially arranged on the rack 100 in the vertical direction, and the air cooling assembly 500 is located above the galvanizing pool 200, and the inside of the galvanizing pool 200 has zinc liquid. The wiping assembly 300 comprises a plurality of first wiping pipes 310, the preheating assembly 400 comprises a plurality of preheating pipes 410, and the air cooling assembly 500 comprises a plurality of air cooling pipes 510. The first wiping pipes 310, the preheating pipes 410 and the air cooling pipes 510 are arranged one by one corresponding to the steel wire 700. After the steel wire 700 passes through the galvanizing pool 200, it sequentially passes through the first wiping pipe 310, the preheating pipe 410 and the air cooling pipe 510 arranged corresponding thereto from bottom to top. The air source 600 is installed on the rack 100 and used to send air to the air cooling pipe 510, the preheating pipe 410 and the air cooling pipe 510 arranged corresponding thereto are communicated, and the pipe diameter of the preheating pipe 410 is greater than that of the air cooling pipe 510. A first air port 311 is formed on the first wiping pipe 310 in the tangential direction thereof, and the preheating pipe 410 is connected to the first air port 311 of the first wiping pipe 310 arranged corresponding thereto through a gas pump 411 and a connecting pipe 412.

[0022] The inner diameter of the preheating pipe 410 is greater than that of the air cooling pipe 510, and the size of the preheating pipe 410 in the vertical direction is greater than that of the air cooling pipe 510 in the vertical direction, so that the volume of the preheating pipe 410 is greater than that of the air cooling pipe 510.

[0023] In use, the steel wire 700 sequentially passes through the first wiping pipe 310, the preheating pipe 410 and the air cooling pipe 510 arranged corresponding thereto in the vertical direction after passing through the galvanizing pool 200, and air is sent to the air cooling pipe 510 through the air source 600. After passing through the air cooling pipe 510, the gas reaches the preheating pipe 410. By making the pipe diameter of the preheating pipe 410 greater than that of the air cooling pipe 510, the flow rate of the gas is slowed down after entering the preheating pipe 410, and the residence time of the gas is prolonged. In this process, the gas exchanges heat with the galvanized steel wire 700, preheats the gas, and the preheated gas is sent to the first wiping pipe 310 as the wiping air source, realizing energy recycling and reuse.

[0024] When the steel wire 700 moves from bottom to top to the first wiping pipe 310, the gas entering from the first gas port 311 of the first wiping pipe 310 removes the excess zinc on the surface of the steel wire 700; and since the first gas port 311 is arranged along the tangential direction of the first wiping pipe 310, the gas will flow tangentially along the inner wall of the first wiping pipe 310, that is, the gas will flow in a spiral manner, and the wiping of the steel wire 700 by the spiral hot air can make the zinc layer on the surface of the steel wire 700 in a molten state, avoid the zinc layer from being solidified due to rapid cooling at low temperature, and improve the wiping effect; and the spiral hot air will flow along the tangential direction of the zinc layer, which can fully cover the surface of the steel wire 700 and improve the wiping effect, increase the uniformity of the zinc layer thickness, and improve the galvanizing quality of the steel wire 700.

[0025] In further embodiments, the wiping assembly 300 further comprises a second wiping pipe 320 and a third wiping pipe 330, the first wiping pipe 310, the second wiping pipe 320 and the third wiping pipe 330 are arranged in sequence in the vertical direction, the first wiping pipe 310 is located above the third wiping pipe 330, and the inner diameters of the first wiping pipe 310, the second wiping pipe 320 and the third wiping pipe 330 gradually increase. The second wiping pipe 320 is provided with a second gas port 321 along the tangential direction thereof, and the third wiping pipe 330 is provided with a third gas port 331 along the tangential direction thereof. The first gas port 311, the second gas port 321 and the third gas port 331 are all communicated with the connecting pipe 412 through the branch pipes 413. The steel wire 700 passes through the galvanizing tank 200 and then passes through the third wiping pipe 330, the second wiping pipe 320, the first wiping pipe 310, the preheating pipe 410 and the air cooling pipe 510 in sequence from bottom to top.

[0026] By arranging the first wiping pipe 310, the second wiping pipe 320 and the third wiping pipe 330 in cooperation, in use, the gas preheated in the preheating pipe 410 will be sent into the first wiping pipe 310, the second wiping pipe 320 and the third wiping pipe 330 through the connecting pipe 412 and the branch pipes 413 respectively, and the zinc layer on the steel wire 700 is wiped layer by layer, and the inner diameters of the first wiping pipe 310, the second wiping pipe 320 and the third wiping pipe 330 gradually increase, which can improve the wiping efficiency and also avoid the zinc layer being too close to the first gas port 311, the second gas port 321 and the third gas port 331, causing the first gas port 311, the second gas port 321 and the third gas port 331 to be blocked.

[0027] Further, each branch pipe 413 is provided with an electric heating wire 414. By arranging the electric heating wire 414, the temperature of the gas can be further increased, and the zinc layer on the steel wire 700 can be further ensured to be in a molten state during wiping.

[0028] In a further embodiment, the preheating galvanizing device for steel wire processing further comprises a water cooling assembly 800, the water cooling assembly 800 comprises a cooling water pool 810, the cooling water pool 810 is located above the air cooling pipe 510, and the cooling water pool 810 has cooling water therein. The steel wire 700 passes through the galvanizing pool 200 and then passes through the third wiping pipe 330, the second wiping pipe 320, the first wiping pipe 310, the preheating pipe 410, the air cooling pipe 510 and the cooling water pool 810 in sequence from bottom to top.

[0029] The water cooling assembly 800 further comprises a water collecting pool 820. The water collecting pool 820 is located between the air cooling pipe 510 and the cooling water pool 810, the water collecting pool 820 and the cooling water pool 810 are communicated, and the water collecting pool 820 and the cooling water pool 810 are connected through a water pipe 830 and a water pump 840, so that the water in the water collecting pool 820 can flow back to the cooling water pool 810. The steel wire 700 passes through the galvanizing pool 200 and then passes through the third wiping pipe 330, the second wiping pipe 320, the first wiping pipe 310, the preheating pipe 410, the air cooling pipe 510, the water collecting pool 820 and the cooling water pool 810 in sequence from bottom to top.

[0030] Further, the cooling water pool 810 and the water collecting pool 820 are connected through a water cooling pipe 850, the water cooling pipe 850 is arranged in a vertical direction, and a plurality of drainage openings 851 are arranged in the circumferential direction of the water cooling pipe 850, so that the water in the cooling water pool 810 can flow into the water collecting pool 820 through the drainage openings 851 after passing through the water cooling pipe 850. The steel wire 700 passes through the galvanizing pool 200 and then passes through the third wiping pipe 330, the second wiping pipe 320, the first wiping pipe 310, the preheating pipe 410, the air cooling pipe 510, the water cooling pipe 850 of the water collecting pool 820 and the cooling water pool 810 in sequence from bottom to top.

[0031] Further, the water cooling pipe 850 is provided with a flow resistance plate 852, the flow resistance plate 852 is arranged in a vertical direction and is a tapered ring plate, the upper end of the flow resistance plate 852 has a through opening for the steel wire 700 to pass through, and the diameter of the through opening is slightly larger than the diameter of the steel wire 700, the lower end of the flow resistance plate 852 is fixedly connected with the water cooling pipe 850 and is in abutment with the lower end of the drainage opening 851, so that when water enters the water cooling pipe 850, the flow resistance plate 852 can guide the water to the drainage opening 851, and the flow rate of the water passing through the through opening is reduced.

[0032] The flow resistance plate 852 and the plurality of drainage openings 851 arranged in the circumferential direction of the water cooling pipe 850 are called a drainage member, and a plurality of drainage members are arranged in the water cooling pipe 850 in a vertical direction.

[0033] Alternatively, the flow barrier 852 is arranged between the air cooling pipe 510 and the preheating pipe 410. Alternatively, the air cooling pipe 510 is provided with an air outlet. By arranging the flow barrier 852 between the air cooling pipe 510 and the preheating pipe 410 or providing the air cooling pipe 510 with the air outlet, the flow rate of the gas after entering the preheating pipe 410 can be prolonged to a certain extent, thereby prolonging the residence time of the gas and improving the preheating effect of the gas.

[0034] Further, the water cooling pipe 850 and the air cooling pipe 510 are provided with a water guide groove 860, the water collecting pool 820 is provided with an air jet pipe 870 connected with an external air blowing pump, the air jet pipe 870 is arranged towards one side of the water guide groove 860 and used for jetting air flow to the water guide groove 860. The steel wire 700 passes through the galvanizing pool 200 and then passes through the third wiping pipe 330, the second wiping pipe 320, the first wiping pipe 310, the preheating pipe 410, the air cooling pipe 510, the water guide groove 860, the water cooling pipe 850 of the water collecting pool 820 and the cooling water pool 810 in sequence from bottom to top. By arranging the water guide groove 860 and the air jet pipe 870, a small amount of water falling from the through opening can be blown into the water guide groove 860 by the air jet pipe 870.

[0035] The water pipe 830 includes a main pipe and two branch pipes, the main pipe is located in the cooling water pool 810, the two branch pipes are respectively connected with the water collecting pool 820 and the water guide groove 860, thereby enabling the water in the water collecting pool 820 and the water guide groove 860 to be returned to the water collecting pool 820 by the water pump 840 for recycling. Alternatively, the water guide groove 860 is connected with an external drainage pipeline, thereby enabling a small amount of water in the water guide groove 860 to be drained to the outside.

[0036] The embodiment arranges the water cooling assembly 800 and cooperates with the preheating pipe 410 and the air cooling pipe 510, so that the steel wire 700 with the removed excess zinc layer passes through the air cooling pipe 510 and is cooled by air first, and then passes through the water guide groove 860, the water cooling pipe 850 of the water collecting pool 820 and the cooling water pool 810 in sequence from bottom to top, thereby cooling the steel wire 700 step by step, prolonging the cooling path, avoiding the influence of sudden cooling on the final galvanizing quality of the zinc layer and prolonging the service life of the galvanized steel wire 700.

[0037] In a further embodiment, the air source 600 is a cooling fan. The air source 600 and the air cooling pipe 510 are provided with an air cooling box 610, the air cooling box 610 passes through the cooling water pool 810, and the air cooling box 610 is provided with heat exchange fins.

[0038] Through setting the air cooling box 610 and making the air cooling box 610 pass through the cooling water pool 810, the gas in the air cooling box 610 can exchange heat with the liquid in the cooling water pool 810 in use, the liquid in the cooling water pool 810 is cooled, and the gas is preliminarily preheated.

[0039] In a further embodiment, the first guide wheel 110, the second guide wheel 120, the third guide wheel 130 and the fourth guide wheel 140 are arranged on the frame 100 and arranged in sequence in the vertical direction, the second guide wheel 120 is located below the fourth guide wheel 140, and the second guide wheel 120 is located in the galvanizing pool 200, and the third guide wheel 130 is located above the cooling water pool 810.

[0040] In use, the steel wire 700 is pulled out from the first roller of the external device and wound on the first guide wheel 110, then wound on the second guide wheel 120 downward, and sequentially passes through the third wiping pipe 330, the second wiping pipe 320, the first wiping pipe 310, the preheating pipe 410, the air cooling pipe 510, the water guide groove 860, the water cooling pipe 850 of the water collecting pool 820 and the cooling water pool 810 in the vertical direction upward, and then wound on the third guide wheel 130 and the fourth guide wheel 140, and finally wound on the collecting roller of the external device, and through driving the collecting roller of the external device to rotate, the galvanizing, wiping, air cooling and water cooling operations are realized, and the galvanizing operation of the steel wire 700 is finally completed.

[0041] In combination with the above embodiment, the specific working process is as follows: In use, the steel wire 700 is pulled out from the first roller of the external device and wound on the first guide wheel 110, then wound on the second guide wheel 120 downward, and sequentially passes through the third wiping pipe 330, the second wiping pipe 320, the first wiping pipe 310, the preheating pipe 410, the air cooling pipe 510, the water guide groove 860, the water cooling pipe 850 of the water collecting pool 820 and the cooling water pool 810 in the vertical direction upward, and then wound on the third guide wheel 130 and the fourth guide wheel 140, and finally wound on the collecting roller of the external device, and through driving the collecting roller of the external device to rotate, the steel wire 700 flows from bottom to top.

[0042] When the galvanized steel wire 700 after being galvanized from the galvanizing tank 200 comes to the wiping assembly 300, the preheated gas in the preheating pipe 410 will be respectively sent into the first wiping pipe 310, the second wiping pipe 320 and the third wiping pipe 330 through the connecting pipe 412 and the branch pipe 413, and the zinc layer on the steel wire 700 will be wiped layer by layer. When the steel wire 700 after the excess zinc layer is removed by wiping comes to the air cooling pipe 510, the steel wire 700 will be firstly air cooled, and then sequentially cooled by the water cooling pipe 850 of the water collecting tank 820 and the cooling water tank 810 from bottom to top, and finally the galvanizing operation of the steel wire 700 is completed.

[0043] The above description is merely preferred embodiments of the present application, but not to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A preheating type galvanizing device for steel wire processing, characterized by: The zinc plating device comprises a rack, a zinc plating pool, a wiping assembly, a preheating assembly, an air cooling assembly and an air source part; the zinc plating pool, the wiping assembly, the preheating assembly and the air cooling assembly are sequentially arranged in the vertical direction on the rack, and the air cooling assembly is located above the zinc plating pool, and the zinc plating pool has zinc liquid inside; the wiping assembly comprises a plurality of first wiping pipes, the preheating assembly comprises a plurality of preheating pipes, and the air cooling assembly comprises a plurality of air cooling pipes; the first wiping pipe, the preheating pipe and the air cooling pipe are arranged in one-to-one correspondence with the steel wire; the steel wire sequentially passes through the first wiping pipe, the preheating pipe and the air cooling pipe arranged in correspondence therewith in the vertical direction from bottom to top after passing through the zinc plating pool; the air source part is installed on the rack and is used for sending air to the air cooling pipe, the preheating pipe is communicated with the air cooling pipe arranged in correspondence therewith, and the pipe diameter of the preheating pipe is greater than the pipe diameter of the air cooling pipe; a first air port is formed on the first wiping pipe in the tangential direction of the first wiping pipe; the preheating pipe is connected with the first air port of the first wiping pipe arranged in correspondence therewith through an air pump and a connecting pipe.

2. A preheating type galvanizing device for steel wire processing according to claim 1, characterized in that: The wiping assembly further comprises a second wiping pipe and a third wiping pipe, the first wiping pipe, the second wiping pipe and the third wiping pipe are sequentially arranged in the vertical direction, the first wiping pipe is located above the third wiping pipe, and the inner diameters of the first wiping pipe, the second wiping pipe and the third wiping pipe gradually increase; a second air port is formed on the second wiping pipe in the tangential direction of the second wiping pipe, a third air port is formed on the third wiping pipe in the tangential direction of the third wiping pipe, and the first air port, the second air port and the third air port are communicated with the connecting pipe through branch pipes; the steel wire sequentially passes through the third wiping pipe, the second wiping pipe, the first wiping pipe, the preheating pipe and the air cooling pipe arranged in correspondence therewith from bottom to top after passing through the zinc plating pool.

3. A preheating type galvanizing device for steel wire processing according to claim 2, characterized in that: An electric heating wire is arranged on each branch pipe.

4. The preheating type galvanizing device for steel wire processing according to claim 2, characterized in that: The device further comprises a water cooling assembly, the water cooling assembly comprises a cooling water pool, the cooling water pool is located above the air cooling pipe, and the cooling water pool has cooling water inside; the steel wire sequentially passes through the third wiping pipe, the second wiping pipe, the first wiping pipe, the preheating pipe, the air cooling pipe and the cooling water pool arranged in correspondence therewith from bottom to top after passing through the zinc plating pool.

5. A preheating type galvanizing device for steel wire processing according to claim 4, characterized in that: The water cooling assembly further comprises a water collecting pool, the water collecting pool is located between the air cooling pipe and the cooling water pool, the water collecting pool is communicated with the cooling water pool, and the steel wire sequentially passes through the third wiping pipe, the second wiping pipe, the first wiping pipe, the preheating pipe, the air cooling pipe, the water collecting pool and the cooling water pool arranged in correspondence therewith from bottom to top after passing through the zinc plating pool.

6. A preheating type galvanizing device for steel wire processing according to claim 5, characterized in that: The water collecting pool and the cooling water pool are connected through a water pipe and a water pump.

7. A preheating type galvanizing device for steel wire processing according to claim 5, wherein: The cooling water pool and the water collecting pool are connected through a water cooling pipe, the water cooling pipe is arranged in the vertical direction, and a plurality of drainage ports are formed on the water cooling pipe in the circumferential direction.

8. A preheating type galvanizing device for steel wire processing according to claim 7, characterized in that: A flow resistance plate is arranged in the water cooling pipe, and the flow resistance plate can guide the water entering the water cooling pipe to the drainage port.

9. The preheating type galvanizing device for steel wire processing according to claim 7, characterized in that: A water guide groove is arranged between the water cooling pipe and the air cooling pipe, a jet pipe is arranged at the lower end of the water collecting pool, and the jet pipe is arranged towards one side of the water guide groove and used for jetting air flow to the water guide groove.

10. The preheating type galvanizing device for steel wire processing according to claim 4, characterized in that: An air cooling box is arranged between the air source part and the air cooling pipe, and the air cooling box passes through the cooling water pool.

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