High-formability duplex stainless steel plate hot continuous rolling device

Abstract

The utility model discloses a high-formability duplex stainless steel plate hot continuous rolling device, which belongs to the technical field of hot continuous rolling equipment, and comprises a conveying roller, a rough rolling mechanism, a collecting mechanism and a first descaling mechanism, the collecting mechanism comprises a coaming and a containing component, the coaming is connected with the containing component, the containing component is arranged on the side surface of the rough rolling mechanism, and the first descaling mechanism is arranged on the coaming. The first descaling mechanism comprises a first water tank and a descaling assembly, the first water tank is connected with the containing assembly, the descaling assembly is connected with the containing assembly, the second descaling mechanism comprises a second water tank and a spraying assembly, the second water tank is installed between the rough rolling mechanism and the finish rolling mechanism, and the second water tank is connected with the spraying assembly. The spraying assembly is connected with the rough rolling mechanism and the finish rolling mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of hot continuous rolling equipment, and particularly discloses a hot continuous rolling device for duplex stainless steel plates with high formability. Background Art

[0002] Duplex stainless steel has the advantages of both ferritic stainless steel and austenitic stainless steel. It is increasingly widely used in energy and chemical storage tanks, pipelines, structures and other fields with its high strength, excellent corrosion resistance and good welding performance. Duplex stainless steel is processed into finished products through a series of processes such as heating, rolling and cooling. Duplex stainless steel hot rolling refers to the continuous rolling of duplex stainless steel slabs into the required thickness and width by heating and rolling, while realizing the heating, deformation and cooling process of duplex stainless steel plates. This continuous production process can greatly improve production efficiency, while also being able to control product quality and improve the mechanical properties and surface quality of duplex stainless steel plates.

[0003] After searching, the patent with the prior art publication number: CN103240279A discloses a control device for a hot rolling mill and a control method for a hot rolling mill. The technical solution of the patent is: including a storage unit for storing the roller speed, rolling load and depression position of each rolling stand set for the last rolled steel plate; a stable value extraction storage unit for extracting and taking in the roller speed, rolling load and depression position of each rolling stand after the last rolling of the steel plate reaches a stable state; a speed instruction correction unit for correcting the roller speed calculated by the setting unit according to the contents of the setting value storage unit and the stable value extraction storage unit; and a speed instruction balancing unit for limiting the speed correction amount for each rolling stand within the upper and lower limits while considering the balance between the rolling stands. When the invention is used to descale the steel plate, the shed oxide scale falls directly on the ground, making it impossible to collect and clean the shed oxide scale in a centralized manner.

[0004] The prior art patent with publication number CN112828050A discloses a hot rolling production line heat detection anti-interference device, the technical solution of the patent is: including a production line main body, a hot coil box, a flying shear and an intermediate billet; the intermediate billet includes a fixed rough rolling mechanism, a fan arranged on the fixed rough rolling mechanism and an isolation cover arranged on the fixed rough rolling mechanism, and an air duct is connected between the isolation cover and the fan; the heat detection component is arranged on the isolation cover, and the patent uses a fan to blow the fallen oxide scale, but no collection mechanism is provided, so the blown oxide scale falls off under the action of the fan, and the fine particles of the fallen oxide scale are easy to cause dust, and the fine particles will cause wear of the bearings of the transmission system, and at the same time, it is easy to cause harm to the surrounding operators.

[0005] In the hot continuous rolling of the duplex stainless steel of the present application, a large amount of oxide scale is generated during the speed increase process of being heated in a heating furnace and conveyed out of the furnace. Before entering the hot rolling rough rolling, if it is not processed quickly and concentratedly, pits will be generated in the rough rolling, affecting the surface quality of the rough rolling. At the same time, during the through-conveying process between the rough rolling group and the finishing rolling group, the rolled steel plate will also produce fine oxide scale, affecting the surface quality of the later finishing rolling. Therefore, a hot continuous rolling device for duplex stainless steel plates with high formability is invented. Utility Model Content

[0006] In view of the above technical problems, the technical solution adopted by the utility model is: a hot continuous rolling device for duplex stainless steel plates with high formability, comprising a conveying roller, a rough rolling mechanism, a finishing rolling mechanism, a collecting mechanism, a first descaling mechanism and a second descaling mechanism; the collecting mechanism comprises a panel and a containing assembly, the panel is connected to the containing assembly, the containing assembly is installed on the side of the rough rolling mechanism, the first descaling mechanism comprises a first water tank and a descaling assembly, the first water tank is connected to the containing assembly, and the descaling assembly is connected to the containing assembly;

[0007] The second descaling mechanism comprises a second water tank and a spray assembly. The second water tank is installed between the rough rolling mechanism and the finishing rolling mechanism. The second water tank is connected to the spray assembly. The spray assembly is respectively connected to the rough rolling mechanism and the finishing rolling mechanism.

[0008] Furthermore, the containing assembly includes a base plate, which is fixedly mounted on the lower side of the enclosure, and two inclined blocks are symmetrically fixedly mounted on the upper side of the base plate. The upper side surfaces of the two inclined blocks are both provided with inclined surfaces, and the height of the inclined surfaces on the upper sides of the two inclined blocks gradually increases toward the middle position of the inner side of the enclosure. A fourth support plate is fixedly mounted on the outer side of the enclosure, and two first limit grooves are symmetrically arranged on the inner wall of the enclosure.

[0009] Furthermore, a movable plate is slidably installed on the inner wall of the first limiting groove, the interior of the movable plate is hollow, a sliding plate is slidably installed on the inner wall of the movable plate, the sliding plate is slidably installed on the inclined surface of the inclined surface block, a third fixed shaft is fixedly installed on the side of the movable plate, a fourth connecting rod is rotatably installed on the outer surface of the third fixed shaft, a third connecting rod is slidably installed on the side of the fourth connecting rod, a second connecting rod is slidably installed on the side of the third connecting rod, a first motor bracket is fixedly installed on the side of the fourth support plate, a first motor is fixedly installed on the side of the first motor bracket, and the second connecting rod is fixedly connected to the output end of the first motor.

[0010] Furthermore, a second fixed plate is fixedly installed on the upper side of the fourth support plate, a plurality of transport rollers are rotatably installed on the side of the second fixed plate, a steel plate is installed on the upper side of the transport roller, a first fixed plate is fixedly installed on the upper side of the fourth support plate, a second limiting groove is arranged on the first fixed plate, a movable frame is slidably installed on the inner wall of the second limiting groove, a first water tank is fixedly installed on the upper side of the movable frame, a plurality of conveying pipes are installed on the movable frame, each conveying pipe is provided with a plurality of first water spray outlets, each conveying pipe is connected with the first water tank, a first fixed shaft is fixedly installed on the side of the movable frame, a first connecting rod is rotatably installed on the outer surface of the first fixed shaft, a second fixed shaft is rotatably installed on the end of the first connecting rod away from the first fixed shaft, and the second fixed shaft is fixedly installed on the side of the fourth connecting rod.

[0011] Furthermore, a collecting plate is fixedly installed on the lower side of the first fixed plate, and a trapezoidal through hole is arranged on the collecting plate. The trapezoidal through hole of the collecting plate is wide at the top and narrow at the bottom. A connecting shaft is fixedly installed at the output end of the first motor, and a fifth connecting rod is fixedly installed on the outer surface of the connecting shaft.

[0012] Furthermore, the spray assembly includes an intermediate plate, two intermediate plates are provided, and the two intermediate plates are respectively fixedly installed on the opposite sides of the rough rolling mechanism and the finishing rolling mechanism, and the first steam generator and the second steam generator are symmetrically fixedly installed between the two intermediate plates. The intermediate plate is fixedly installed on the upper side of the second water tank, and the intermediate plate is respectively connected to the first steam generator and the second steam generator.

[0013] Furthermore, a square plate is fixedly installed between the two middle plates, the square plate is located below the second water tank, a group of collecting mechanisms are installed below the square plate, a group of transport rollers are rotatably installed below the square plate, a vertical shaft is rotatably installed on the square plate, a seventh connecting rod is fixedly installed on the outer surface of the vertical shaft, a fixed short shaft is fixedly installed on the end of the seventh connecting rod away from the vertical shaft, a sixth connecting rod is rotatably installed on the outer surface of the fixed short shaft, a fixed sleeve is fixedly installed on the sixth connecting rod, a second motor bracket is fixedly installed on the side of the second water tank, a second motor is fixedly installed on the second motor bracket, and an output end of the second motor is fixedly connected to the fixed sleeve.

[0014] Furthermore, a slot plate is fixedly installed between the two middle plates, the slot plate is fixedly installed under the square plate, a rotating disk is rotatably installed on the slot plate, the rotating disk is fixedly installed on the outer surface of the vertical shaft, two straight slots are symmetrically arranged on the slot plate, two vertical tubes are slidably installed on the inner wall of each straight slot, a plurality of second water spray outlets are arranged on the outer surface of each vertical tube, the two vertical tubes on one straight slot are connected to the first steam generator through a hose, the two vertical tubes on the other straight slot are connected to the second steam generator through a hose, four arc slots are circumferentially equidistantly arranged on the rotating disk, and each vertical tube is slidably installed on the inner wall of an arc slot.

[0015] The beneficial effects of the utility model compared with the prior art are:

[0016] (1) The utility model uses high-pressure water to remove scale from the outer surface of the steel plate. The oxide scale washed off by the high-pressure water falls onto the inclined block through the collecting plate. At the same time, the first motor drives the fifth connecting rod to rotate, and the fifth connecting rod is used to knock the collecting plate, thereby knocking the collecting plate to prevent the oxide scale from staying on the inner wall of the collecting plate. The first motor rotates and drives the second connecting rod to rotate. The second connecting rod drives the moving plate to slide along the first limiting groove through the third fixed shaft. The moving plate drives the sliding plate to slide along the inclined block, thereby collecting the fallen oxide scale by the sliding of the sliding plate on the upper surface of the inclined block, thereby preventing the oxide scale from falling on the ground and causing inconvenience;

[0017] (2) The utility model drives the first fixed shaft to move through the fourth connecting rod, and the first fixed shaft drives the movable frame to slide along the inner wall of the second limiting groove, so that the first fixed shaft realizes the reciprocating movement of the movable frame, and then the oxide scale on the outer surface of the steel plate is fully flushed through the first water spray port, so as to avoid the influence of insufficient oxide scale shedding on the hot rolling process;

[0018] (3) The utility model drives the sixth connecting rod to reciprocate through the second motor, and drives the vertical shaft to reciprocate through the sixth connecting rod. When the vertical shaft reciprocates, the vertical pipe is driven to reciprocate along the straight groove through the rotating disk. At the same time, the first steam generator and the second steam generator process the water in the second water tank into high-temperature and high-pressure steam, and then the high-temperature and high-pressure steam is sprayed out through the second water spray port. The high-temperature and high-pressure steam is used to remove the oxide scale on the steel plate. The high-temperature and high-pressure steam is used to remove the outer surface of the steel plate in all directions through the reciprocating motion of the vertical pipe, thereby avoiding leaving dead corners and causing insufficient removal of the oxide scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the structure of the collection mechanism of the utility model.

[0021] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0022] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0023] Figure 5 for Figure 2 Schematic diagram of the partial enlarged structure at point C in the middle.

[0024] Figure 6 for Figure 2 Schematic diagram of the local enlarged structure at point D in the middle.

[0025] Figure 7 This is a schematic diagram of the structure of the second descaling mechanism of the utility model.

[0026] Figure 8 for Figure 7 Schematic diagram of the local enlarged structure at point E in the middle.

[0027] Fig. 9 This is a schematic diagram of the structure of the spray assembly of the utility model.

[0028] Fig.10 for Fig. 9 Schematic diagram of the partially enlarged structure at point F in the middle.

[0029] Fig.11 It is a schematic diagram of the connection relationship between the middle plate and the square plate of the utility model.

[0030] Fig.12 for Fig.11 Schematic diagram of the local enlarged structure at G in the middle.

[0031] Figure numerals: 1, conveying roller; 2, rough rolling mechanism; 3, collecting mechanism; 4, first descaling mechanism; 5, second descaling mechanism; 6, finishing mechanism; 301, enclosure; 302, bottom plate; 303, inclined block; 304, fourth support plate; 305, first limiting groove; 401, first water tank; 402, moving frame; 403, first fixed plate; 404, second limiting groove; 405, first fixed shaft; 406, first connecting rod; 407, second fixed shaft; 408, first motor bracket; 409, first motor; 410, second connecting rod; 411, third connecting rod; 412, fourth connecting rod; 413, third fixed shaft; 414, moving plate; 415, sliding Plate; 416, connecting shaft; 417, fifth connecting rod; 418, collecting plate; 419, first water spray outlet; 420, conveying pipe; 421, steel plate; 422, conveying roller; 423, second fixed plate; 501, second water tank; 502, first steam generator; 503, middle plate; 504, second steam generator; 505, vertical pipe; 506, second water spray outlet; 507, square plate; 508, second motor bracket; 509, second motor; 510, fixed sleeve; 511, sixth connecting rod; 512, seventh connecting rod; 513, rotating disk; 514, fixed short shaft; 515, arc groove; 516, straight groove; 517, groove plate; 518, vertical shaft. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further explained below in combination with and through specific implementation methods.

[0033] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0034] As attached Figure 1 ~Attached Fig.12 As shown, the collecting mechanism 3 includes a fence 301 and a containing assembly, the fence 301 is connected to the containing assembly, and the containing assembly is installed on the side of the rough rolling mechanism 2; the first descaling mechanism 4 includes a first water tank 401 and a descaling assembly, the first water tank 401 is connected to the containing assembly, and the descaling assembly is connected to the containing assembly; the second descaling mechanism 5 includes a second water tank 501 and a spray assembly, the second water tank 501 is installed between the rough rolling mechanism 2 and the finishing rolling mechanism 6, the second water tank 501 is connected to the spray assembly, and the spray assembly is respectively connected to the rough rolling mechanism 2 and the finishing rolling mechanism 6.

[0035] As attached Figure 2 ~Attached Fig.10 As shown: the containing assembly includes a bottom plate 302, the bottom plate 302 is fixedly mounted on the lower side of the enclosure 301, two inclined blocks 303 are symmetrically fixedly mounted on the upper side of the bottom plate 302, the upper side surfaces of the two inclined blocks 303 are both provided with inclined surfaces, and the height of the inclined surfaces on the upper sides of the two inclined blocks 303 gradually increases toward the middle position of the inner side of the enclosure 301, a fourth support plate 304 is fixedly mounted on the outer side of the enclosure 301, and two first limiting grooves 305 are symmetrically provided on the inner wall of the enclosure 301.

[0036] As attached Figure 3 ~Attached Fig.10As shown, a moving plate 414 is slidably mounted on the inner wall of the first limiting groove 305, the interior of the moving plate 414 is hollow, a sliding plate 415 is slidably mounted on the inner wall of the moving plate 414, the sliding plate 415 is slidably mounted on the inclined surface of the inclined surface block 303, a third fixed shaft 413 is fixedly mounted on the side of the moving plate 414, a fourth connecting rod 412 is rotatably mounted on the outer surface of the third fixed shaft 413, a third connecting rod 411 is slidably mounted on the side of the fourth connecting rod 412, and a second connecting rod 411 is slidably mounted on the side of the third connecting rod 411 410, a first motor bracket 408 is fixedly installed on the side of the fourth support plate 304, a first motor 409 is fixedly installed on the side of the first motor bracket 408, and a second connecting rod 410 is fixedly connected to the output end of the first motor 409; a second fixing plate 423 is fixedly installed on the upper side of the fourth support plate 304, and a plurality of transport rollers 422 are rotatably installed on the side of the second fixing plate 423, and a steel plate 421 is installed on the upper side of the transport roller 422; the first fixing plate 403 is fixedly installed on the upper side of the fourth support plate 304, and the first The fixed plate 403 is provided with a second limiting groove 404, and a mobile frame 402 is slidably installed on the inner wall of the second limiting groove 404. A first water tank 401 is fixedly installed on the upper side of the mobile frame 402. A plurality of delivery pipes 420 are installed on the mobile frame 402, and each delivery pipe 420 is provided with a plurality of first water spraying ports 419. Each delivery pipe 420 is connected to each first water tank 401 through a water pump. A first fixed shaft 405 is fixedly installed on the side of the mobile frame 402, and the outer surface of the first fixed shaft 405 A first connecting rod 406 is rotatably installed, and a second fixed shaft 407 is rotatably installed on one end of the first connecting rod 406 away from the first fixed shaft 405, and the second fixed shaft 407 is fixedly installed on the side of the fourth connecting rod 412; a collecting plate 418 is fixedly installed on the lower side of the first fixed plate 403, and a trapezoidal through hole is provided on the collecting plate 418, and the trapezoidal through hole of the collecting plate 418 is wide at the top and narrow at the bottom; a connecting shaft 416 is fixedly installed at the output end of the first motor 409, and a fifth connecting rod 417 is fixedly installed on the outer surface of the connecting shaft 416.

[0037] As attached Figure 4 ~Attached Fig.12As shown, the spray assembly includes an intermediate plate 503, two intermediate plates 503 are provided, and the two intermediate plates 503 are respectively fixedly installed on the opposite sides of the rough rolling mechanism 2 and the finishing rolling mechanism 6, and the first steam generator 502 and the second steam generator 504 are symmetrically fixedly installed between the two intermediate plates 503, and the intermediate plate 503 is fixedly installed on the upper side of the second water tank 501, and the intermediate plate 503 is connected to the first steam generator 502 and the second steam generator 504 respectively; a square plate 507 is fixedly installed between the two intermediate plates 503, and the square plate 507 is located below the second water tank 501, and a group of collecting Mechanism 3, a group of transport rollers 422 are rotatably installed under the square plate 507, a vertical shaft 518 is rotatably installed on the square plate 507, a seventh connecting rod 512 is fixedly installed on the outer surface of the vertical shaft 518, a fixed short shaft 514 is fixedly installed on the end of the seventh connecting rod 512 away from the vertical shaft 518, a sixth connecting rod 511 is rotatably installed on the outer surface of the fixed short shaft 514, a fixed sleeve 510 is fixedly installed on the sixth connecting rod 511, a second motor bracket 508 is fixedly installed on the side of the second water tank 501, a second motor 509 is fixedly installed on the second motor bracket 508, and an output end of the second motor 509 is fixedly connected to the fixed sleeve 510.

[0038] As attached Figure 5 ~Attached Fig.12 As shown, a slot plate 517 is fixedly installed between the two middle plates 503, and the slot plate 517 is fixedly installed below the square plate 507. A rotating disk 513 is rotatably installed on the slot plate 517, and the rotating disk 513 is fixedly installed on the outer surface of the vertical shaft 518. Two straight slots 516 are symmetrically arranged on the slot plate 517, and two vertical pipes 505 are slidably installed on the inner wall of each straight slot 516. A plurality of second water spraying ports 506 are respectively arranged on the outer surface of each vertical pipe 505. The two vertical pipes 505 on one straight slot 516 are connected to the first steam generator 502 through a hose, and the other straight slot 516 is connected to the first steam generator 502 through a hose. The two vertical tubes 505 on the 6 are connected to the second steam generator 504 through a hose. Four arc grooves 515 are arranged on the rotating disk 513 at equal intervals. Each vertical tube 505 is slidably mounted on the inner wall of an arc groove 515. The rough rolling mechanism 2 and the finishing rolling mechanism 6 are respectively provided with multiple groups of rollers. Each group of rollers is provided with one upper roller and two lower rollers. Each roller is connected to a motor I. Multiple transport rollers 422 are also rotatably mounted on the conveying roller 1. Multiple transport rollers 422 are also rotatably mounted under the square plate 507. Each transport roller 422 is fixedly connected to a motor II. The models of the first steam generator 502 and the second steam generator 504 are TEC, and the conveying rollers are 1.0T. The inner wall radius of the hose between the vertical tube 505 and the second steam generator 504 and the vertical tube 505 and the first steam generator 502 is 2.5 mm, and the wall thickness of the hose is 10 mm.

[0039] The utility model discloses a high-formability duplex stainless steel plate hot continuous rolling device having the following working principle.

[0040] (I) Before starting work, the first motor 409, the second motor 509, the motor I and the motor II are started at the same time, the motor I drives all the rollers to rotate, the motor II drives all the transport rollers 422 to rotate, and at the same time, the steel plate 421 in a red-hot state after being treated in the annealing furnace begins to be transported through the transport rollers 422, and then the water pump is started, and the high-pressure water in the first water tank 401 is sprayed to the steel plate 421 through the first water spray port 419, and then the outer surface of the steel plate 421 is descaled by the high-pressure water, and the oxide scale washed down by the high-pressure water falls onto the inclined block 303 through the collecting plate 418, and at the same time, the first motor 409 drives the connecting shaft 416 to rotate, and the connecting shaft 416 drives The fifth connecting rod 417 rotates, and the collecting plate 418 is knocked by the fifth connecting rod 417. The knocking of the collecting plate 418 prevents the oxide scale from staying on the inner wall of the collecting plate 418. The first motor 409 rotates and drives the second connecting rod 410 to rotate. The second connecting rod 410 drives the fourth connecting rod 412 to move through the third connecting rod 411. The fourth connecting rod 412 drives the movable plate 414 to slide along the first limiting groove 305 through the third fixed shaft 413. The movable plate 414 drives the sliding plate 415 to slide along the inclined block 303. Then, the sliding plate 415 slides on the upper surface of the inclined block 303 to collect the detached oxide scale, thereby completing the descaling process.

[0041] (ii) When the fourth connecting rod 412 moves, it drives the second fixed shaft 407 to move. The second fixed shaft 407 drives the first fixed shaft 405 to move through the first connecting rod 406. The first fixed shaft 405 drives the movable frame 402 to slide along the inner wall of the second limiting groove 404, thereby realizing the reciprocating movement of the movable frame 402, and further realizing the full flushing of the oxide scale of the steel plate 421, so as to avoid the influence of insufficient oxide scale shedding on the hot rolling process. After that, the descaling steel plate 421 enters the rough rolling mechanism 2, and then the rollers in the rough rolling mechanism 2 perform the rough rolling process on the steel plate 421.

[0042] (III) When the rough-rolled steel plate 421 is being fed into the finishing mechanism 6 through the transport roller 422, the second motor 509 is started, and the second motor 509 reciprocates. The second motor 509 drives the sixth connecting rod 511 to reciprocate through the fixed sleeve 510, and the sixth connecting rod 511 drives the vertical shaft 518 to reciprocate through the seventh connecting rod 512. When the vertical shaft 518 reciprocates, it drives the rotating disk 513 to reciprocate. The rotating disk 513 drives the vertical pipe 505 to reciprocate along the straight groove 516 through the arc groove 515. At the same time, the first steam generator 502 and the second steam generator 504 add water in the second water tank 501. The process is high-temperature and high-pressure water vapor, which is then sprayed out through the second water nozzle 506. The oxide scale on the steel plate 421 is removed by the high-temperature and high-pressure water vapor. The reciprocating motion of the vertical pipe 505 allows the high-temperature water vapor to remove the oxide scale on the outer surface of the steel plate 421 in all directions, thereby avoiding leaving dead corners and causing insufficient oxide scale removal. The oxide scale that falls off then falls onto the inclined block 303 under the square plate 507. The steel plate 421 after the second descaling enters the finishing rolling mechanism 6, and is finish-rolled by the rollers in the finishing rolling mechanism 6. The steel plate 421 after finish rolling is transported to the next process by the conveying roller 1.

[0043] The above contents are merely examples and explanations of the structure of the present invention. The electrical components such as the steam generator involved in the present invention are components in the prior art, and the electrical connections between the circuit components are conventional circuit connections in the prior art, which are not within the scope of protection of the present invention.

Claims

1. A hot rolling device for high-formability duplex stainless steel plates, comprising a conveying roller (1), a rough rolling mechanism (2) and a finishing rolling mechanism (6), characterized in that: The high-formability economical duplex stainless steel plate hot rolling device further comprises a collecting mechanism (3), a first descaling mechanism (4) and a second descaling mechanism (5); the collecting mechanism (3) comprises a panel (301) and a containing assembly, the panel (301) is connected to the containing assembly, the containing assembly is installed on the side of the rough rolling mechanism (2), the first descaling mechanism (4) comprises a first water tank (401) and a descaling assembly, the first water tank (401) is connected to the containing assembly, and the descaling assembly is connected to the containing assembly; The second descaling mechanism (5) comprises a second water tank (501) and a spray assembly, the second water tank (501) is installed between the rough rolling mechanism (2) and the finishing rolling mechanism (6), the second water tank (501) is connected to the spray assembly, and the spray assembly is respectively connected to the rough rolling mechanism (2) and the finishing rolling mechanism (6); The containing assembly comprises a bottom plate (302), the bottom plate (302) being fixedly mounted on the lower side of the enclosure (301), two inclined plane blocks (303) being symmetrically fixedly mounted on the upper side of the bottom plate (302), the upper side surfaces of the two inclined plane blocks (303) being both provided with inclined planes, the inclined planes on the upper sides of the two inclined plane blocks (303) gradually increasing in height towards the middle position of the inner side of the enclosure (301), a fourth supporting plate (304) being fixedly mounted on the outer side of the enclosure (301), and two first limiting grooves (305) being symmetrically mounted on the inner wall of the enclosure (301); The spray assembly comprises an intermediate plate (503), two intermediate plates (503) are provided, the two intermediate plates (503) are respectively fixedly mounted on opposite sides of the rough rolling mechanism (2) and the finishing rolling mechanism (6), a first steam generator (502) and a second steam generator (504) are symmetrically fixedly mounted between the two intermediate plates (503), an intermediate plate (503) is fixedly mounted on the upper side of the second water tank (501), and the intermediate plates (503) are respectively connected to the first steam generator (502) and the second steam generator (504).

2. The hot rolling device for high formability duplex stainless steel sheet according to claim 1, characterized in that: A moving plate (414) is slidably mounted on the inner wall of the first limiting groove (305); the moving plate (414) is hollow inside; a sliding plate (415) is slidably mounted on the inner wall of the moving plate (414); the sliding plate (415) is slidably mounted on the inclined surface of the inclined surface block (303); a third fixed shaft (413) is fixedly mounted on the side of the moving plate (414); a fourth connecting rod (412) is rotatably mounted on the outer surface of the third fixed shaft (413); a third connecting rod (411) is slidably mounted on the side of the fourth connecting rod (412); a second connecting rod (410) is slidably mounted on the side of the third connecting rod (411); a first motor bracket (408) is fixedly mounted on the side of the fourth support plate (304); a first motor (409) is fixedly mounted on the side of the first motor bracket (408); and the second connecting rod (410) is fixedly connected to the output end of the first motor (409).

3. The hot rolling device for high formability duplex stainless steel sheet according to claim 2, characterized in that: A second fixed plate (423) is fixedly mounted on the upper side of the fourth support plate (304); a plurality of transport rollers (422) are rotatably mounted on the side of the second fixed plate (423); a steel plate (421) is mounted on the upper side of the transport roller (422); a first fixed plate (403) is fixedly mounted on the upper side of the fourth support plate (304); a second limiting groove (404) is provided on the first fixed plate (403); a movable frame (402) is slidably mounted on the inner wall of the second limiting groove (404); a first water tank (401) is fixedly mounted on the upper side of the movable frame (402); and the movable frame (402) ) are installed with a plurality of delivery pipes (420), each delivery pipe (420) is provided with a plurality of first water spray outlets (419), each delivery pipe (420) is connected to the first water tank (401), a first fixed shaft (405) is fixedly installed on the side of the movable frame (402), a first connecting rod (406) is rotatably installed on the outer surface of the first fixed shaft (405), a second fixed shaft (407) is rotatably installed on one end of the first connecting rod (406) away from the first fixed shaft (405), and the second fixed shaft (407) is fixedly installed on the side of the fourth connecting rod (412).

4. The hot rolling device for high formability duplex stainless steel sheet according to claim 3, characterized in that: A collecting plate (418) is fixedly mounted on the lower side of the first fixing plate (403), a trapezoidal through hole is provided on the collecting plate (418), the trapezoidal through hole of the collecting plate (418) being wider at the top and narrower at the bottom, a connecting shaft (416) is fixedly mounted on the output end of the first motor (409), and a fifth connecting rod (417) is fixedly mounted on the outer surface of the connecting shaft (416).

5. The hot rolling device for high formability duplex stainless steel sheet according to claim 4, characterized in that: A square plate (507) is fixedly installed between the two middle plates (503). The square plate (507) is located below the second water tank (501). A group of collecting mechanisms (3) are installed below the square plate (507). A group of transport rollers (422) are rotatably installed below the square plate (507). A vertical shaft (518) is rotatably installed on the square plate (507). A seventh connecting rod (512) is fixedly installed on the outer surface of the vertical shaft (518). A fixed short shaft (514) is fixedly installed on the end of the seventh connecting rod (512) away from the vertical shaft (518). A sixth connecting rod (511) is rotatably installed on the outer surface of the fixed short shaft (514). A fixed sleeve (510) is fixedly installed on the sixth connecting rod (511). A second motor bracket (508) is fixedly installed on the side of the second water tank (501). A second motor (509) is fixedly installed on the second motor bracket (508). The output end of the second motor (509) is fixedly connected to the fixed sleeve (510).

6. The high formability duplex stainless steel sheet hot rolling device according to claim 5, characterized in that: A slot plate (517) is fixedly installed between the two middle plates (503), the slot plate (517) is fixedly installed below the square plate (507), a rotating disk (513) is rotatably installed on the slot plate (517), the rotating disk (513) is fixedly installed on the outer surface of the vertical shaft (518), two straight slots (516) are symmetrically arranged on the slot plate (517), two vertical tubes (505) are slidably installed on the inner wall of each straight slot (516), and the outer surface of each vertical tube (505) is A plurality of second water spray ports (506) are respectively provided, two vertical tubes (505) on one straight groove (516) are connected to the first steam generator (502) via a hose, and two vertical tubes (505) on another straight groove (516) are connected to the second steam generator (504) via a hose, and four arc-shaped grooves (515) are provided on the rotating disk (513) at equal intervals around the circumference, and each vertical tube (505) is slidably mounted on the inner wall of one arc-shaped groove (515).

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