Pickled white board and galvanized plate strip production device
By dividing the production device of pickling white plate and galvanized plate tape into pickling sections and galvanized sections, and disabling the galvanized section equipment during the pickling process, the problems of equipment loss and energy waste in the prior art are solved, and efficient pickling and galvanizing operations are achieved.
Patent Information
- Application Number
- CN202420447109.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-03-08
AI Technical Summary
When producing pickling and galvanized whiteboards, existing pickling and galvanized combined units need equipment through the galvanized process route. Even if these equipment does not participate in the process, they need to remain in a "normal open" state, resulting in equipment loss and energy waste.
A production device for pickling white plates and galvanized plate belts is designed, and the production line is divided into pickling sections and galvanized sections. The steel belt is directly picked up through the pickling section and rolled up during pickling. The equipment of the galvanized section is in a shutdown state during the pickling process, and the galvanized section is introduced into the galvanized section through the bypass roller for galvanizing operation.
Effectively save energy, prevent equipment loss, improve equipment life, and achieve efficient utilization of pickling and galvanizing operations.
Smart Images
Figure CN222665959U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of plate processing equipment and relates to a production device for pickled white plates and galvanized plate strips. Background Art
[0002] The pickling and galvanizing combined unit mainly uses ESP and CSP hot-rolled plates as raw materials. The process line for producing galvanized / zinc-aluminum-magnesium plates is as follows: the raw plate is pickled to remove the iron oxide scale on the surface of the plate and strip, and then the edge defects are removed by disc shearing, and then it is passed through a leveling machine to improve the mechanical processing performance and surface roughness, and then enters the heating furnace (tower) for preheating, and then enters the zinc pot, cooling tower, skin-finishing machine, coating (passivation solution), drying, and finally reaches the coiler.
[0003] However, when the pickling and galvanizing combined unit produces pickled white plates, according to the process requirements, only the raw material plate needs to be pickled to remove the iron oxide on the surface of the plate and strip, and then the edge defects are removed by disc shearing, and then the flattening machine is used to improve the mechanical processing performance and surface roughness, and then directly reaches the coiler, without entering the heating furnace (tower) for preheating and then entering the zinc pot, cooling tower, skin-finishing machine, coating (passivation liquid), drying and other equipment. However, in actual production, the plate and strip still need to pass through equipment that is not involved in the process route, but the equipment that is not involved in the process route is set to the "normally open" non-working state. These equipment are neither in a completely offline state nor in a working state, which not only accelerates the equipment loss, but also makes it impossible to carry out offline maintenance work. Utility Model Content
[0004] The utility model aims to provide a pickling white plate and galvanized plate strip production device to solve the problem that the pickling white plate operation in the prior art needs to go through a galvanizing process route, which reduces efficiency and wastes energy.
[0005] To this end, the utility model adopts the following technical solutions:
[0006] A pickling white plate and galvanized plate and strip production device, comprising a pickling section and a galvanizing section, the pickling section comprising a uncoiler, a rolling mill entrance looper is provided on one side of the uncoiler, a pickling tank is provided on one side of the rolling mill entrance looper, a leveling machine is provided on one side of the pickling tank, a rolling mill exit looper is provided on one side of the leveling machine, a first tensioning roller and a first deviation correcting roller are provided between the leveling machine and the rolling mill exit looper, a swing-type flying shear is provided on one side of the rolling mill exit looper, and a coiler is provided on one side of the swing-type flying shear;
[0007] The galvanizing section includes an electromagnetic induction heating furnace arranged on one side of the first tensioning roller, a first bypass roller is provided between the first tensioning roller and the electromagnetic induction heating furnace, a zinc pot is provided on one side of the electromagnetic induction heating furnace, a cooling tower is provided on one side of the zinc pot, a skin-finishing machine is provided on one side of the cooling tower, a roller coater is provided on one side of the skin-finishing machine, the roller coater is located on one side of the first deviation correcting roller, and a second bypass roller is provided between the roller coater and the first deviation correcting roller.
[0008] Furthermore, a straightening machine and a second deviation-correcting roller are provided between the uncoiler and the rolling inlet looper.
[0009] Furthermore, a second tensioning roller is provided between the rolling inlet looper and the pickling tank, a descaling and straightening machine is provided on the second tensioning roller, and a third tensioning roller is provided between the pickling tank and the leveling machine.
[0010] Furthermore, a third deviation-correcting roller is provided between the electromagnetic induction heating furnace and the zinc pot.
[0011] Furthermore, a fourth tensioning roller is provided between the cooling tower and the skin-finishing machine, and a fifth tensioning roller is provided between the skin-finishing machine and the roller coater.
[0012] Furthermore, a fourth deviation-correcting roller is provided between the steel rolling exit looper and the swing-type flying shear, and a fifth deviation-correcting roller is provided between the swing-type flying shear and the coiler.
[0013] The beneficial effects of the utility model are as follows: the production line is divided into a pickling section and a galvanizing section; during pickling, the steel strip can be directly pickled and rolled through the pickling section without entering the galvanizing section; during the pickling process, the galvanizing section does not need to be started to allow the steel strip to pass, which effectively saves energy, prevents equipment loss, and increases equipment life; during galvanizing, the steel strip pickled in the pickling section is introduced into the galvanizing section through a bypass roller to realize pickling and galvanizing operations, effectively utilizing the equipment without increasing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] In the figure, 1- unwinder, 2- fifth tensioning roller, 3- straightening machine, 4- second bypass roller, 5- rolling mill entrance looper, 6- second deviation correction roller, 7- pickling tank, 8- second tensioning roller, 9- descaling and straightening machine, 10- leveling machine, 11- third tensioning roller, 12- rolling mill exit looper, 13- first tensioning roller, 14- first deviation correction roller, 15- swing flying shear, 16- fourth deviation correction roller, 17- unwinder, 18- fifth deviation correction roller, 19- electromagnetic induction heating furnace, 20- first bypass roller, 21- zinc pot, 22- third deviation correction roller, 23- cooling tower, 24- skin finishing machine, 25- fourth tensioning roller, 26- roller coater. DETAILED DESCRIPTION
[0016] The utility model is described in detail below with reference to the accompanying drawings:
[0017] like Figure 1 As shown, a pickling white plate and galvanized plate and strip production device includes a pickling section and a galvanizing section. The pickling section includes a uncoiler 1, and the uncoiler 1 is used to unwind the steel coil. A rolling inlet looper 5 is provided on one side of the uncoiler 1. The rolling inlet looper 5 adopts an existing conventional rolling inlet looper device to facilitate continuous feeding of the steel strip. A straightening machine 3 and a second deviation correction roller 6 are provided between the uncoiler 1 and the rolling inlet looper 5. The straightening machine 3 can correct and flatten the strip head to ensure smooth strip threading of the entire line. The second deviation correction roller 6 adopts an existing conventional deviation correction roller and is used to correct the steel strip. The steel strip unrolled by the uncoiler 1 can be accurately fed into the rolling mill entrance looper 5. A pickling tank 7 is provided on one side of the rolling mill entrance looper 5. A second tensioning roller 8 is provided between the rolling mill entrance looper 5 and the pickling tank 7. A descaling and straightening machine 9 is provided on the second tensioning roller 8. The descaling and straightening machine 9 adopts the existing conventional descaling and straightening machine. A leveling machine 10 is provided on one side of the pickling tank 7. A third tensioning roller 11 is provided between the pickling tank 7 and the leveling machine 10. The steel strip can be pulled into the pickling tank 7 for pickling by the second tensioning roller 8 and the third tensioning roller 11. Before pickling, the descaling and straightening machine 9 can be used to reduce the oxidation on the surface of the steel strip. The iron sheet produces cracks and falls off, and the pickling effect is improved. The pickled steel strip can be flattened by the flattening machine 10. A steel rolling exit looper 12 is arranged on one side of the flattening machine. A first tensioning roller 13 and a first deviation correcting roller 14 are arranged between the flattening machine 10 and the steel rolling exit looper 12. When the steel strip moves out of the flattening machine 10, it can be transported to the steel rolling exit looper 12 through the first tensioning roller 13 and the first deviation correcting roller 14. The steel rolling exit looper 12 also adopts a conventional steel rolling looper device. The steel strip is continuously transported and fed through the steel rolling exit looper 12. A swing-type flywheel is arranged on one side of the steel rolling exit looper 12. Shear 15, a fourth correcting roller 16 is provided between the steel rolling exit looper 12 and the swing flying shear 15, the steel strip conveyed by the steel rolling exit looper 12 is corrected by the fourth correcting roller 16, and then enters the swing flying shear 15 for trimming, a coiler 17 is provided on one side of the swing flying shear 15, the coiler 17 adopts the existing conventional coiler, which can roll the steel strip into a steel coil for collection and transportation, a fifth correcting roller 18 is provided between the swing flying shear 15 and the coiler 17, the steel strip trimmed by the swing flying shear 15 can be corrected by the fifth correcting roller 18 and then can be reeled by the coiler 17 to complete the pickling operation of the steel strip.
[0018] The galvanizing section includes an electromagnetic induction heating furnace 19 arranged on one side of the first tensioning roller 13. The electromagnetic induction heating furnace 19 adopts an existing conventional electromagnetic induction heating furnace, which can heat the flattened steel strip to facilitate the subsequent galvanizing operation. A first bypass roller 20 is arranged between the first tensioning roller 13 and the electromagnetic induction heating furnace 19. The steel strip that has completed pickling in the pickling section can be introduced into the galvanizing section through the first bypass roller 20 and sent into the electromagnetic induction heating furnace 19. A zinc pot 21 is arranged on one side of the electromagnetic induction heating furnace 19. The zinc pot 21 adopts an existing conventional zinc pot, which can perform galvanizing operations on the steel strip. A third deviation correction roller 22 is arranged between the electromagnetic induction heating furnace 19 and the zinc pot 21. The steel strip is corrected by the third deviation correction roller 22 and sent into the zinc pot 21 for galvanizing operations. A cooling tower 2 is arranged on one side of the zinc pot 21. 3. The cooling tower 23 adopts an existing conventional cooling tower, which is used to cool the galvanized steel strip. A skin-finishing machine 24 is arranged on one side of the cooling tower 23. The skin-finishing machine 24 adopts an existing conventional skin-finishing machine. The skin-finishing machine 24 can improve the surface finish of the steel strip. A fourth tensioning roller 25 is arranged between the cooling tower 23 and the skin-finishing machine 24. The steel strip is fed into the skin-finishing machine 24 through the fourth tensioning roller 25. A roller coater 26 is arranged on one side of the skin-finishing machine 24. A fifth tensioning roller 2 is arranged between the skin-finishing machine 24 and the roller coater 26. The surface of the steel strip can be coated with paint through the roller coater 26. The roller coater 26 is located on one side of the first deviation-correcting roller 14. A second bypass roller 4 is arranged between the roller coater 26 and the first deviation-correcting roller 14. The galvanized steel strip in the galvanized section can be introduced into the first deviation-correcting roller 14 through the second bypass roller 4 and then rolled up.
[0019] The usage of the utility model is as follows:
[0020] When pickling white board operation is required, the steel coil is unfolded through the uncoiler 1, and then transported to the steel rolling entrance looper 5 through the straightening machine 3 and the second correcting roller 6, and then the iron oxide on the surface of the steel strip is removed by the second tensioning roller 8 and the descaling and straightening machine 9 and sent to the pickling tank 7 for pickling. After pickling, the pickled steel strip is sent to the leveling machine 10 for leveling through the third tensioning roller 11. After leveling, the steel strip is sent to the steel rolling exit looper 12 through the first tensioning roller 13 and the first correcting roller 14, and then passes through the steel rolling exit looper 12, and then is corrected by the fourth correcting roller 16 and sent to the swing shear 15 for trimming. After trimming, it is corrected by the fifth correcting roller 18 and finally coiled by the coiler 17 to complete the pickling operation of the steel strip.
[0021] During the acid operation, the steel strip does not pass through the galvanizing section and all the equipment in the galvanizing section is in a shutdown state, which can effectively save energy and avoid equipment loss.
[0022] During the galvanizing operation, the steel strip first passes through the pickling section. The steel strip after pickling and leveling is introduced into the galvanizing section through the first bypass roller 20. After entering the galvanizing section, it is first heated by the electromagnetic induction heating furnace 19. After heating, it is sent to the zinc pot 21 for galvanizing through the third correcting roller 22. After galvanizing, it directly enters the cooling tower 23 to cool the steel strip. After cooling, it is sent to the skin-finishing machine 24 through the fourth tensioning roller 25 to improve the surface finish of the steel strip, and then sent to the roller coater 26 through the fifth tensioning roller 2 to coat the surface of the steel strip. The galvanizing operation is completed. The galvanized steel strip is introduced into the first tensioning roller 13 through the second bypass roller 4 and then enters the steel rolling exit looper 12, and is finally wound.
Claims
1. A pickled white plate and galvanized plate production device, characterized in that: It comprises a pickling section and a galvanizing section, wherein the pickling section comprises a coil uncoiler (1), a rolling mill entrance looper (5) is provided on one side of the coil uncoiler (1), a pickling tank (7) is provided on one side of the rolling mill entrance looper (5), a leveling machine (10) is provided on one side of the pickling tank (7), a rolling mill exit looper (12) is provided on one side of the leveling machine (10), a first tensioning roller (13) and a first deviation correcting roller (14) are provided between the leveling machine (10) and the rolling mill exit looper (12), a swing-type flying shear (15) is provided on one side of the rolling mill exit looper (12), and a coil take-up machine (17) is provided on one side of the swing-type flying shear (15); The galvanizing section comprises an electromagnetic induction heating furnace (19) arranged on one side of the first tensioning roller (13); a first bypass roller (20) is arranged between the first tensioning roller (13) and the electromagnetic induction heating furnace (19); a zinc pot (21) is arranged on one side of the electromagnetic induction heating furnace (19); a cooling tower (23) is arranged on one side of the zinc pot (21); a skinning machine (24) is arranged on one side of the cooling tower (23); a roller coater (26) is arranged on one side of the skinning machine (24); the roller coater (26) is located on one side of the first deviation correcting roller (14); and a second bypass roller (4) is arranged between the roller coater (26) and the first deviation correcting roller (14).
2. The pickled white plate and galvanized plate production device according to claim 1 is characterized in that: A straightening machine (3) and a second deviation-correcting roller (6) are provided between the uncoiler (1) and the rolling inlet looper (5).
3. The pickled white plate and galvanized plate production device according to claim 1 is characterized in that: A second tensioning roller (8) is provided between the rolling inlet looper (5) and the pickling tank (7), a descaling and straightening machine (9) is provided on the second tensioning roller (8), and a third tensioning roller (11) is provided between the pickling tank (7) and the leveling machine (10).
4. The pickled white plate and galvanized plate production device according to claim 1 is characterized in that: A third deviation-correcting roller (22) is provided between the electromagnetic induction heating furnace (19) and the zinc pot (21).
5. The pickled white plate and galvanized plate production device according to claim 1 is characterized in that: A fourth tensioning roller (25) is provided between the cooling tower (23) and the skin-finishing machine (24), and a fifth tensioning roller (2) is provided between the skin-finishing machine (24) and the roller coating machine (26).
6. The pickled white plate and galvanized plate production device according to claim 1 is characterized in that: A fourth deviation-correcting roller (16) is provided between the steel rolling exit looper (12) and the swing-type flying shear (15), and a fifth deviation-correcting roller (18) is provided between the swing-type flying shear (15) and the coiler (17).