Plate shape control device for annealed belly plate of hot-rolled austenitic stainless steel

Abstract

The utility model discloses a shape control device for a belly plate after annealing of hot-rolled austenitic stainless steel, the shape control is performed through an annealing and cooling device, and the annealing and cooling device comprises a box body, a feed port, a discharge port, an air cooling area, a water cooling area, a partition plate and a transport roller; the feeding port and the discharging port are located at the two ends of the box body respectively, a slag outlet is formed below the discharging port of the box body, a slag outlet door and an electric push rod IV are arranged at the slag outlet, and the electric push rod IV is fixed to the side wall of the box body and connected with the slag outlet door. The partition plate is fixed in the box body and divides the interior of the box body into an air cooling area and a water cooling area. An air cooling mechanism is arranged in the air cooling area, and an upper water cooling mechanism and a lower water cooling mechanism are arranged in the water cooling area; a plurality of conveying rollers are uniformly mounted on the side wall of the box body; a motor VIII is arranged at one end of the conveying roller; a water outlet is formed in the bottom of the box. The utility model can ensure that the stainless steel surface is flat, effectively control the shape of the belly plate, and prevent the stainless steel surface from being scratched, indented and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-rolled austenitic stainless steel, in particular to a plate shape control device for a hot-rolled austenitic stainless steel annealed enlarged plate. Background Art

[0002] After hot rolling, austenitic stainless steel will have a large belly defect on its surface, especially after annealing in a continuous annealing furnace, which releases stress and makes the large belly more serious. When austenitic stainless steel passes through the cooling and drying sections of the annealing furnace, it will rub against the nozzle, nozzle or air cylinder, causing scratches. The scratched steel strip cannot be salvaged and can only be scrapped.

[0003] After searching, the prior art announcement number CN216274253U is a strip steel rapid cooling device for an annealing furnace, which includes a cooling device body, an airflow control area, a bellows partition and a connecting side plate. A strip steel body is arranged inside the cooling device body, and a plurality of conveying rollers are arranged at one end of the strip steel body and inside the cooling device body. The conveying rollers are specifically arranged at the transport angle position of the strip steel body. The processing process has the following disadvantages: although the above patent can cool the strip steel, during use, as the strip steel cools down during operation, the internal temperature of the cooling device body increases, thereby affecting the cooling speed of the strip steel entering the cooling device subsequently.

[0004] After searching, the prior art announcement number CN215481141U is an annealing furnace strip cooling device, which includes a material transport channel, a cooling box, a water pump, a filter device, a water-cooled heat exchanger, a nozzle, a sprayer and a storage table for placing the strip; a feeding gate and a discharging gate are respectively arranged on one side of the cooling box and the opposite side thereof, the bottom of the cooling box is a water reservoir, the material transport channel is erected between the feeding gate and the discharging gate, and the storage table is arranged on the material transport channel; a first through hole is arranged at the bottom of the water reservoir, the first through hole is connected to the water inlet pipe of the filter device, the water outlet of the filter device is connected to the water inlet pipe of the water pump, the water outlet of the water pump is connected to the water-cooled heat exchanger pipe, the water-cooled heat exchanger is connected to the nozzle and the sprayer pipe respectively, and the nozzle and the sprayer are both arranged in the cooling box; the processing process has the following disadvantages: the nozzle and the sprayer are both fixed inside the cooling box, which leads to uneven cooling of the strip, and cannot adapt to strips of different widths, which further leads to the phenomenon of big belly plate of the strip. Utility Model Content

[0005] The utility model aims to overcome the deficiencies in the prior art and provide a device for controlling the shape of a large-belly plate after hot-rolled austenitic stainless steel annealing, which can ensure the flatness of the stainless steel surface through an upper water cooling mechanism and a lower water cooling mechanism, effectively control the shape of the large-belly plate, and prevent defects such as scratches and indentations on the stainless steel surface.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A device for controlling the shape of a hot-rolled austenitic stainless steel annealed belly plate, which controls the shape of the plate through an annealing cooling device, and the specific steps are as follows:

[0008] 1) Guiding: After annealing, the austenitic stainless steel strip enters the air cooling zone through the guiding mechanism;

[0009] 2) Air cooling in the cooling section after annealing; there is a cold air knife in the air cooling zone, the air volume of the cold air knife is 0.15-0.6MPa, and the running speed of stainless steel is 25-40m / min; it can reduce the temperature of stainless steel from 1000-1200℃ to 900℃;

[0010] 3) Water cooling in the cooling section after annealing; the water cooling zone is provided with an upper water cooling mechanism and a lower water cooling mechanism, which are respectively located on the upper and lower sides of the stainless steel; the upper water cooling mechanism and the lower water cooling mechanism are respectively provided with evenly distributed upper water spray pipes and lower water spray pipes, which are respectively controlled by separate solenoid valves; the water pressure of the upper water spray pipe is 0.15-0.20MPa, and the water pressure of the lower water spray pipe is 0.20-0.30MPa; the running speed of the stainless steel is 20-30m / min; the lower water cooling mechanism is provided with a cleaning mechanism;

[0011] 4) Leveling: Stainless steel is leveled by a leveling mechanism.

[0012] The annealing cooling device comprises a box body, a feed port, a discharge port, an air cooling zone, a water cooling zone, a partition, and a transport roller; the feed port and the discharge port are respectively located at the two ends of the box body, a slag discharge port is provided below the discharge port of the box body, a slag discharge door and an electric push rod IV are provided at the slag discharge port, and the electric push rod IV is fixed on the side wall of the box body and connected to the slag discharge door; the partition is fixed inside the box body, and the inside of the box body is divided into an air cooling zone and a water cooling zone; an air cooling mechanism is provided inside the air cooling zone, and an upper water cooling mechanism and a lower water cooling mechanism are provided inside the water cooling zone; the guide mechanism is installed on the outer side wall of the box body at the feed port, and the flattening mechanism is installed on the discharge port. On the outer wall of the box at the opening; there are several transport rollers, which are evenly installed on the side wall of the box; a motor VIII is arranged at one end of the transport roller; a drain outlet is arranged at the bottom of the box; the annealed austenitic stainless steel is transported by the transport roller, firstly it is straightened by the guide mechanism, then it enters the air cooling zone inside the box through the feed inlet, the stainless steel is cooled by the air cooling mechanism, then the stainless steel enters the water cooling zone, the stainless steel is further cooled by the upper water cooling mechanism and the lower water cooling mechanism, so as to ensure that the stainless steel is cooled to a suitable temperature, and finally it is transported out through the discharge port to the leveling mechanism for leveling treatment.

[0013] The upper water cooling mechanism comprises a rotating plate, a bearing seat, a mounting frame, an upper water inlet hose, an upper water spray pipe, a motor III, an upper nozzle, and an electric push rod I; one end of the rotating plate is rotatably connected to the side wall of the partition through a connecting seat; a plurality of bearing seats are provided, which are evenly fixed at both ends of the rotating plate; the mounting frame is connected to the bearing seat; the upper water inlet hose passes through the box body, the rotating plate and the mounting frame, and is connected to the inside of the mounting frame; a rotating joint I is provided at one end of the upper water inlet hose located inside the mounting frame; one end of the upper water spray pipe is connected to the rotating joint I, and the other end is connected to the mounting frame; a gear I is provided at one end of the upper water spray pipe connected to the mounting frame; a shell is provided on the outside of the motor III, which is fixed on the side wall of the mounting frame, and a gear II is provided at the output end; the gear I and the gear II are meshed and connected; the upper nozzle is provided with a plurality of, Evenly fixed on the upper water spray pipe; electric push rod I is installed on the inner wall of the box body, and the output end is connected to the rotating plate; motor III provides power to drive gear II and gear I to rotate, gear I drives the upper water spray pipe to rotate, and the upper water spray pipe drives the upper nozzle to rotate, so as to adjust the water spray direction of the upper nozzle, so that the direction of the cooling water sprayed by the upper nozzle is opposite to the moving direction of the stainless steel, thereby accelerating the cooling speed of the stainless steel; the electric push rod provides power to drive the rotating plate to rotate with the connecting seat as the center, so that the end of the rotating plate close to the discharge port moves upward, and further the upper nozzle can be moved away from the upper surface of the stainless steel, thereby preventing the stainless steel from being over-cooled; it can ensure the flatness of the stainless steel surface, effectively control the shape of the belly plate, and prevent defects such as scratches and indentations on the stainless steel surface.

[0014] The lower water cooling mechanism includes a filter plate, a fixing seat, an adjusting frame, a lower water inlet hose, a lower water spray pipe, a motor IV, and an electric push rod II; the filter plate is rotatably connected to the side wall of the partition below the stainless steel through a connecting seat, the fixing seat is provided with a number of evenly fixed on both ends of the filter plate, and the adjusting frame is connected to the corresponding fixing seat through a rotating shaft; the lower water inlet hose passes through the rotating shaft on the fixing seat and the side wall of the box body to communicate with the outside world; one end of the lower water spray pipe is connected to the lower water inlet hose through a rotating joint II, and the other end is rotatably connected to the adjusting frame through a bearing, and a gear III is provided at one end of the lower water spray pipe connected to the adjusting frame; the lower nozzle is evenly fixed on the lower water spray pipe; a shell is provided on the outer side of the motor IV, which is fixed to the side wall of the adjusting frame through the shell, and a gear IV is provided on the output shaft of the motor IV; the gear III and the gear IV mesh The electric push rod II is installed on the inner wall of the box body, and the output end is connected to the filter plate; the motor IV provides power to drive the gear IV, the gear IV drives the gear III to rotate, and the gear III drives the lower water spray pipe and the lower nozzle to rotate; the electric push rod II provides power to drive the filter plate to rotate with the connecting seat as the center, so that the filter plate can be tilted, which is convenient for cleaning the oxide scale on the filter plate. At the same time, the filter plate drives the lower water spray pipe and the lower nozzle to move through the fixed seat and the adjustment frame, so that the lower nozzle close to the discharge port is away from the stainless steel; further weakening the cooling effect on the stainless steel can not only achieve the purpose of cooling the stainless steel, but also prevent the stainless steel from being over-cooled; it can ensure the flatness of the stainless steel surface, effectively control the shape of the belly plate, and prevent the stainless steel surface from having defects such as scratches and indentations.

[0015] The filter plate is provided with a cleaning mechanism, which includes a rack, a scraper, a gear V, a motor V, and an electric push rod III; the rack is fixed on the side wall of the fixed seat below the adjustment frame, a limit groove is provided on the top of the rack, and holes are provided at both ends of the limit groove; the scraper is located on the top of the filter plate, and both ends are overlapped in the limit groove, and a connecting frame is provided on the top of the scraper; the motor V is fixed inside the scraper, and a gear V is provided at the output end; the gear V is meshed and connected with the rack; the electric push rod III is fixed at one end of the rack, and a connecting plate is provided at the output end; the connecting plate and the connecting frame are snap-connected; the motor V provides power to drive the gear V to rotate, so that the gear V rotates along the rack The scraper moves, thereby driving the scraper to move along the filter plate, so as to clean the oxide scale on the filter plate; when the scraper moves to the end of the rack, the connecting frame on the top of the scraper and the connecting plate at the output end of the electric push rod III are engaged and connected, and the electric push rod III provides power to move the scraper to the bottom of the filter plate through the clearance hole, and then drives the scraper to move to the end of the filter plate away from the slag outlet through the motor V and the gear V, and moves the scraper to the top of the filter plate through the electric push rod III, and continues to clean the filter plate through the scraper; that is, the oxide scale on the filter plate can be discharged, and the oxide scale can be prevented from accumulating at the end of the filter plate away from the slag outlet.

[0016] The guiding mechanism comprises a supporting plate, a motor I, an upper movable frame, a lower movable frame, a spline shaft, a movable roller, a main shaft, a fixed roller, a rotating sleeve, and a bidirectional threaded rod; a pair of supporting plates are provided, which are respectively fixed on the outer side walls of the box body above and below the feed port, and a guide groove is provided on the supporting plate; the upper movable frame and the lower movable frame are respectively connected to the corresponding guide grooves; both ends of the bidirectional threaded rod are rotatably connected to the bottom of the supporting plate below the feed port through bearings, and the lower movable frame is connected to the bidirectional threaded rod through threads; the motor I is fixed to the side wall of the lower supporting frame, and the output end is connected to one end of the bidirectional threaded rod; one end of the fixed roller is fixed to the lower movable frame, one end of the main shaft is fixed inside the fixed roller, and the other end is provided with a thread; the movable roller is located above the fixed roller, and a threaded hole is provided inside the movable roller, and the threaded hole is meshed with the thread at one end of the main shaft; one end of the spline shaft is fixed to the top of the movable roller, and the other end A spline sleeve is connected, the spline sleeve is rotatably connected to the moving roller, and a gear VI is arranged on the top of the spline sleeve; the rotating sleeve is rotatably connected inside the moving roller, and the other end is located in the fixed roller; the motor VI is fixed on the upper moving frame, and a gear VII is arranged on the output end; the gear VI and the gear VII are meshingly connected; the motor I provides power to drive the two-way threaded rod to rotate, the two-way threaded rod drives the lower moving frame to move along the lower guide groove, and the lower moving frame drives the entire guide mechanism to move, so as to adapt to stainless steel of different widths; the motor VI provides power to drive the spline sleeve and the spline shaft to rotate through the gear VI and the gear VII, the spline shaft drives the moving roller to rotate, and the moving roller drives the spline shaft to move upward along the spline sleeve through the thread; so as to adapt to stainless steel of different thicknesses; the stainless steel contacts the rotating sleeve during the forward movement, so as to rotate the rotating sleeve, which can prevent the stainless steel from being worn and increase the service life of the rotating sleeve.

[0017] The air cooling mechanism includes a cold air knife, a side nozzle, a duct, a heat exchange box, an exhaust fan, a protective cover, and a return pipe; a pair of cold air knives are provided, which are respectively installed on the side walls of the box above and below the stainless steel, and a plurality of side nozzles are provided and evenly connected to the side walls of the cold air knife; the heat exchange box is fixed on the top of the box, one end of the duct is connected to the heat exchange box, and the other end is connected to the cold air knife; the protective cover is fixed on the side wall of the box, and the exhaust fan is connected to the protective cover; one end of the return pipe is connected to the heat exchange box, and the other end is connected to the protective cover; the cold air enters the cold air knife through the duct, and is sprayed onto the surface of the stainless steel through the air outlet of the cold air knife, thereby cooling the stainless steel, and at the same time, part of the cold air enters the side nozzle, and is sprayed toward the outlet position of the cold air knife through the side nozzle, so that the cold air sprayed by the cold air knife can move in the opposite direction of the movement of the stainless steel, and further can cover the surface of the stainless steel with cold air, which can not only increase the cooling area, but also make the stainless steel evenly cooled; the exhaust fan extracts the hot air in the air cooling area and transports it to the heat exchange box through the return pipe, so as to realize the recycling of heat.

[0018] The leveling mechanism includes an upper leveling roller, a lower leveling roller, a movable seat, a lead screw, a motor VII, and a support frame; the support frame is provided with a pair of ahs, which are symmetrically fixed on the side walls of the box on both sides of the discharge port; the lead screw is rotatably connected to the support frame through a bearing; the movable seat is connected to the lead screw through a thread; the upper leveling roller is rotatably connected to the movable seat connected to the lead screw; the mounting seat is fixed under the support frame, and the lower leveling roller is connected to the mounting seat; the motor VII is fixed on the top of the support frame, and the output end is connected to one end of the lead screw; the motor VII provides power to drive the lead screw to rotate, and the lead screw drives the movable seat to move along the support frame through the thread, and the movable seat drives the upper leveling roller to move, thereby being able to adjust the distance between the upper leveling roller and the lower leveling roller, and further being able to adapt to stainless steel of different thicknesses.

[0019] A shielding plate is provided on the top of the adjusting frame to prevent the oxide scale falling during the cooling process of the stainless steel from clogging the lower nozzle, thereby affecting the cooling uniformity of the stainless steel; a water outlet is provided on the side wall at the bottom of the adjusting frame to discharge the waste water inside the adjusting frame.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1) In the upper water cooling mechanism, motor III provides power to drive gear II and gear I to rotate, gear I drives the upper water spray pipe to rotate, and the upper water spray pipe drives the upper nozzle to rotate, thereby adjusting the water spray direction of the upper nozzle, so that the direction of the cooling water sprayed by the upper nozzle is opposite to the moving direction of the stainless steel, thereby accelerating the cooling speed of the stainless steel; the electric push rod provides power to drive the rotating plate to rotate with the connecting seat as the center, so that the end of the rotating plate close to the discharge port moves upward, and further enables the upper nozzle to be away from the upper surface of the stainless steel, thereby preventing the stainless steel from being over-cooled; it can ensure the flatness of the stainless steel surface, effectively control the shape of the belly plate, and prevent defects such as scratches and indentations on the stainless steel surface;

[0022] 2) In the lower water cooling mechanism, motor IV provides power to drive gear IV, gear IV drives gear III to rotate, and gear III drives the lower water spray pipe and lower nozzle to rotate; electric push rod II provides power to drive the filter plate to rotate with the connecting seat as the center, so that the filter plate can be tilted, which is convenient for cleaning the oxide scale on the filter plate. At the same time, the filter plate drives the lower water spray pipe and the lower nozzle to move through the fixed seat and the adjustment frame, so that the lower nozzle close to the discharge port is away from the stainless steel; further weakening the cooling effect on the stainless steel can achieve the purpose of cooling the stainless steel and prevent the stainless steel from being over-cooled; it can make the surface of the stainless steel flat, effectively control the shape of the belly plate, and prevent the stainless steel surface from having defects such as scratches and indentations;

[0023] 3) The motor V in the cleaning mechanism provides power to drive the gear V to rotate, so that the gear V moves along the rack, thereby driving the scraper to move along the filter plate, so as to clean the oxide scale on the filter plate; when the scraper moves to the end of the rack, the connecting frame on the top of the scraper and the connecting plate at the output end of the electric push rod III are engaged and connected, and the electric push rod III provides power to move the scraper to the bottom of the filter plate through the clearance hole, and then the scraper is driven by the motor V and the gear V to move to the end of the filter plate away from the slag outlet, and the scraper is moved to the top of the filter plate by the electric push rod III, and the filter plate continues to be cleaned by the scraper; that is, the oxide scale on the filter plate can be discharged, and the oxide scale can be prevented from accumulating at the end of the filter plate away from the slag outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 This is a schematic diagram of the structure of a hot-rolled austenitic stainless steel annealed belly plate shape control device. Figure 1 ;

[0025] Attached Figure 2 This is a schematic diagram of the structure of a hot-rolled austenitic stainless steel annealed belly plate shape control device. Figure 2 ;

[0026] Attached Figure 3 It is a schematic diagram of the internal structure of a plate shape control device for a hot-rolled austenitic stainless steel annealed large-belly plate of the utility model;

[0027] Attached Figure 4 This is a schematic diagram of the structure of the guide mechanism in the plate shape control device of the hot-rolled austenitic stainless steel annealed large-belly plate of the utility model. Figure 1 ;

[0028] Attached Figure 5 This is a schematic diagram of the structure of the guide mechanism in the plate shape control device of the hot-rolled austenitic stainless steel annealed large-belly plate of the utility model. Figure 2 ;

[0029] Attached Figure 6 It is a structural schematic diagram of an upper water cooling mechanism in a plate shape control device for a hot-rolled austenitic stainless steel annealed large-bellied plate of the utility model;

[0030] Attached Figure 7 It is a structural schematic diagram of an air cooling mechanism in a plate shape control device for a hot-rolled austenitic stainless steel annealed large-belly plate of the utility model;

[0031] Attached Figure 8 It is a structural schematic diagram of a flattening mechanism in a plate shape control device for a hot-rolled austenitic stainless steel annealed large-bellied plate of the utility model;

[0032] Attached Fig. 9 It is a structural schematic diagram of a lower water cooling mechanism in a plate shape control device for a hot-rolled austenitic stainless steel annealed large-bellied plate of the utility model;

[0033] Attached Fig.10 It is a structural schematic diagram of a cleaning mechanism in a plate shape control device for a hot-rolled austenitic stainless steel plate after annealing in the utility model;

[0034] Attached Fig.11 It is a schematic diagram of a rack in a structure of a plate shape control device for a hot-rolled austenitic stainless steel annealed large-bellied plate of the utility model;

[0035] In the figure: 1, box body; 101, slag discharge door; 102, electric push rod IV; 103, drainage port; 2, feed port; 3, discharge port; 4, guide mechanism; 401, support plate; 4011, guide groove; 402, motor I; 403, upper moving frame; 404, lower moving frame; 405, spline shaft; 4051, spline sleeve; 40511, gear VI; 406, moving roller; 4061, threaded hole; 407, main shaft; 4071, thread; 408, fixed roller; 409, rotating sleeve; 410 , two-way threaded rod; 411, motor VI; 4111, gear VII; 5, air cooling zone; 6, water cooling zone; 7, air cooling mechanism; 701, cold air knife; 702, side spray pipe; 703, duct; 704, heat exchange box; 705, exhaust fan; 706, protective cover; 707, return pipe; 8, upper water cooling mechanism; 801, rotating plate; 802, bearing seat; 803, mounting frame; 804, upper water inlet hose; 8041, rotating joint I; 805, upper spray pipe; 8051, gear I; 806, motor Ⅲ; 8061, gear Ⅱ; 807, upper nozzle; 808, electric push rod Ⅰ; 9, lower water cooling mechanism; 901, filter plate; 902, fixed seat; 903, adjustment frame; 9031, shielding plate; 9032, water outlet; 904, lower water inlet hose; 9041, rotary joint Ⅱ; 905, lower water spray pipe; 9051, gear Ⅲ; 9052, lower nozzle; 906, motor Ⅳ; 9061, gear Ⅳ; 907, electric push rod Ⅱ; 908, cleaning mechanism; 9081, rack; 908 11. Limiting groove; 90812. Clearance hole; 9082. Scraper; 90821. Connecting frame; 9083. Gear V; 9084. Motor V; 9085. Electric push rod III; 90851. Connecting plate; 11. Leveling mechanism; 1101. Upper leveling roller; 1102. Lower leveling roller; 1103. Moving seat; 1104. Lead screw; 1105. Motor VII; 1106. Support frame; 1107. Mounting seat; 12. Stainless steel; 13. Transport roller; 1301. Motor VIII; 14. Partition. DETAILED DESCRIPTION

[0036] To facilitate the understanding of those skilled in the art, Figure 1-11 , the technical solution of the utility model is further specifically described.

[0037] Embodiment 1:

[0038] A device for controlling the shape of a hot-rolled austenitic stainless steel annealed belly plate, which controls the shape of the plate through an annealing cooling device, and the specific steps are as follows:

[0039] 1) Guiding: After annealing, the austenitic stainless steel strip enters the air cooling zone through the guiding mechanism;

[0040] 2) Air cooling in the cooling section after annealing; there is a cold air knife in the air cooling zone, the air volume of the cold air knife is 0.15MPa, and the running speed of the stainless steel is 25m / min; it can reduce the temperature of the stainless steel from 1000℃ to 900℃;

[0041] 3) Water cooling in the cooling section after annealing; the water cooling zone is provided with an upper water cooling mechanism and a lower water cooling mechanism, which are respectively located on the upper and lower sides of the stainless steel; the upper water cooling mechanism and the lower water cooling mechanism are respectively provided with evenly distributed upper water spray pipes and lower water spray pipes, which are respectively controlled by separate solenoid valves; the water pressure of the upper water spray pipe is 0.15MPa, the water pressure of the lower water spray pipe is 0.20MPa, and the running speed of the stainless steel is 20m / min; the lower water cooling mechanism is provided with a cleaning mechanism, which can discharge the oxide scale from the upper punching belt of the stainless steel;

[0042] 4) Leveling: The stainless steel is leveled by a leveling mechanism, which can effectively control the shape of the stainless steel belly plate.

[0043] The annealing cooling device comprises a box body 1, a feed port 2, a discharge port 3, an air cooling zone 5, a water cooling zone 6, a partition 14, and a transport roller 13; the feed port 2 and the discharge port 3 are respectively located at the two ends of the box body 1, and a slag outlet is provided below the discharge port 3 of the box body 1, and a slag outlet door 101 and an electric push rod IV 102 are provided at the slag outlet, and the electric push rod IV 102 is fixed on the side wall of the box body 1 and connected to the slag outlet door 101; the partition 14 is fixed inside the box body 1, and the inside of the box body 1 is divided into an air cooling zone 5 and a water cooling zone 6; an air cooling mechanism 7 is provided inside the air cooling zone 5, and an upper water cooling mechanism 8 and a lower water cooling mechanism 9 are provided inside the water cooling zone 6; the guide mechanism 4 is installed on the outer wall of the box body 1 at the feed port 2, and the flattening mechanism 11 is installed on the outer wall of the box body 1 at the feed port 2. It is installed on the outer wall of the box body 1 at the discharge port 3; a plurality of transport rollers 13 are provided, which are evenly installed on the side wall of the box body 1; a motor VIII 1301 is provided at one end of the transport roller 13, and a drain port 103 is provided at the bottom of the box body 1; the annealed stainless steel 12 is transported by the transport roller 13, firstly it is guided by the guide mechanism 4, then it enters the air cooling zone 5 inside the box body 1 through the feed port 2, the stainless steel 12 is cooled by the air cooling mechanism 7, and then the stainless steel 12 enters the water cooling zone 6, and the stainless steel 12 is further cooled by the upper water cooling mechanism 8 and the lower water cooling mechanism 9, so as to ensure that the stainless steel 12 is cooled to a suitable temperature, and finally it is transported out through the discharge port 3 to the leveling mechanism for leveling.

[0044] The upper water cooling mechanism 8 includes a rotating plate 801, a bearing seat 802, an installation frame 803, an upper water inlet hose 804, an upper water spray pipe 805, a motor III 806, an upper nozzle 807, and an electric push rod I 808; one end of the rotating plate 801 is rotatably connected to the side wall of the partition 14 through a connecting seat; the bearing seat 802 is provided with a plurality of uniformly fixed at both ends of the rotating plate 801; the installation frame 803 is connected to the bearing seat 802; the upper water inlet hose 804 passes through the box body 1, the rotating plate 801 and the installation frame 803; The upper water inlet hose 804 is provided with a rotary joint Ⅰ8041 at one end located inside the installation frame 803; the upper water spray pipe 805 is connected to the rotary joint Ⅰ8041 at one end, and connected to the installation frame 803 at the other end; the upper water spray pipe 805 is provided with a gear Ⅰ8051 at one end connected to the installation frame 803; the motor Ⅲ806 is provided with a housing on the outside, fixed on the side wall of the installation frame 803, and the output end is provided with a gear Ⅱ8061; the gear Ⅰ8051 and Gear II 8061 is meshed and connected; the upper nozzle 807 is provided with a plurality of nozzles, which are evenly fixed on the upper water spray pipe 805; the electric push rod I 808 is installed on the inner wall of the box body 1, and the output end is connected to the rotating plate 801; the motor III 806 provides power to drive the gear II 8061 and the gear I 8051 to rotate, the gear I 8051 drives the upper water spray pipe 805 to rotate, and the upper water spray pipe 805 drives the upper nozzle 807 to rotate, thereby adjusting the water spray direction of the upper nozzle 807, so that the direction of the cooling water sprayed by the upper nozzle is opposite to the moving direction of the stainless steel 12, thereby accelerating the cooling speed of the stainless steel 12; the electric push rod I provides power to drive the rotating plate 801 to rotate with the connecting seat as the center, so that the end of the rotating plate 801 close to the discharge port 3 moves upward, and further enables the upper nozzle 807 to be away from the upper surface of the stainless steel 12, thereby preventing the stainless steel 12 from being over-cooled; it can ensure that the surface of the stainless steel 12 is flat, effectively control the shape of the belly plate, and prevent the surface of the stainless steel 12 from having defects such as scratches and indentations.

[0045] The lower water cooling mechanism 9 includes a filter plate 901, a fixing seat 902, an adjustment frame 903, a lower water inlet hose 904, a lower water spray pipe 905, a motor IV 906, and an electric push rod II 907; the filter plate 901 is rotatably connected to the side wall of the partition 14 below the stainless steel 12 through a connecting seat, the fixing seat 902 is provided with a number of years and is evenly fixed at both ends of the filter plate 901, and the adjustment frame 903 is connected to the corresponding fixing seat 902 through a rotating shaft; the lower water inlet hose 904 passes through the rotating shaft and The side wall of the box body 1 is connected to the outside world; one end of the lower water spray pipe 905 is connected to the lower water inlet hose 904 through a rotating joint II 9041, and the other end is rotatably connected to the adjustment frame 903 through a bearing, and a gear III 9051 is provided at the end of the lower water spray pipe 905 connected to the adjustment frame 903; the lower nozzle 9052 is evenly fixed on the lower water spray pipe 905; a shell is provided on the outer side of the motor IV 906, which is fixed to the side wall of the adjustment frame 903 through the shell, and a gear IV 9061 is provided on the output shaft of the motor IV 906; the gear III 9 051 is meshed and connected with gear IV 9061; electric push rod II 907 is installed on the inner wall of box body 1, and the output end is connected with filter plate 901; motor IV 906 provides power to drive gear IV 9061, gear IV 9061 drives gear III 9051 to rotate, and gear III 9051 drives the lower water spray pipe 905 and the lower nozzle 9052 to rotate; electric push rod II 907 provides power to drive the filter plate 901 to rotate with the connecting seat as the center, so that the filter plate 901 can be tilted, which is convenient for the filter plate 901 The oxide scale on the stainless steel 12 is cleaned, and at the same time, the filter plate 901 drives the lower water spray pipe 905 and the lower nozzle 9052 to move through the fixed seat 902 and the adjustment frame 903, so that the lower nozzle 9052 close to the discharge port 3 is away from the stainless steel 12, further weakening the cooling effect on the stainless steel, which can not only achieve the purpose of cooling the stainless steel 12, but also prevent the stainless steel 12 from being over-cooled; it can ensure that the surface of the stainless steel 12 is flat, effectively control the shape of the belly plate, and prevent the surface of the stainless steel 12 from being scratched, indented and other defects.

[0046] The filter plate is provided with a cleaning mechanism, which includes a rack 9081, a scraper 9082, a gear V 9083, a motor V 9084, and an electric push rod III 9085; the rack 9081 is fixed to the side wall of the fixing seat 902 below the adjustment frame 903, a limiting groove 90811 is provided on the top of the rack 9081, and a clearance hole 90812 is provided at both ends of the limiting groove 90811; the scraper 9082 is located at the top of the filter plate 901, and the two ends are overlapped in the limiting groove. In 90811, a connecting frame 90821 is provided at the top of the scraper 9082; the motor V 9084 is fixed inside the scraper 9082, and a gear V 9083 is provided at the output end; the gear V 9083 is meshed and connected with the rack 9081; the electric push rod III 9085 is fixed at one end of the rack 9081, and a connecting plate 90851 is provided at the output end; the connecting plate 90851 is engaged and connected with the connecting frame 90821; the motor V 9084 provides power to drive the gear V 9083 to rotate, The gear V 9083 moves along the rack 9081, thereby driving the scraper 9082 to move along the filter plate 901, thereby cleaning the oxide scale on the filter plate 901 and preventing the filter plate 901 from being blocked; when the scraper 9082 moves to the end of the rack 9081, the connecting frame 90821 at the top of the scraper 9082 and the connecting plate 90851 at the output end of the electric push rod III 9085 are engaged and connected, and the electric push rod III 9085 provides power to move the scraper 9082 through the clearance hole. 90812 moves to the bottom of the filter plate 901, and then the scraper 9082 is driven by the motor V 9084 and the gear V 9083 to move toward the end of the filter plate 901 away from the slag outlet; the scraper 9082 is moved to the top of the filter plate 901 by the electric push rod III 9085, and the filter plate 901 is continuously cleaned by the scraper 9082; that is, the oxide scale on the filter plate 901 can be discharged, and the oxide scale can be prevented from accumulating at the end of the filter plate 901 away from the slag outlet.

[0047] The guide mechanism 4 includes a support plate 401, a motor I 402, an upper movable frame 403, a lower movable frame 404, a spline shaft 405, a movable roller 406, a main shaft 407, a fixed roller 408, a rotating sleeve 409, a bidirectional threaded rod 410, and a motor VI 411; a pair of support plates 401 are provided, which are respectively fixed on the outer wall of the box body 1 above the feed port 2 and below the feed port 2, and a guide groove 4011 is provided on the support plate 401; the upper movable frame 403 and the lower movable frame 404 are respectively connected to the corresponding guide grooves 4011; both ends of the bidirectional threaded rod 410 are rotatably connected to the lower side of the feed port through bearings. At the bottom of the support plate 401, the lower moving frame 404 is connected to the bidirectional threaded rod 410 through threads; the motor I 402 is fixed on the side wall of the support plate 401, and the output end is connected to one end of the bidirectional threaded rod 410; one end of the fixed roller 408 is fixed to the lower moving frame 404, one end of the main shaft 407 is fixed inside the fixed roller 408, and the other end is provided with a thread 4071; the moving roller 406 is located above the fixed roller 408, and the moving roller 406 is provided with a threaded hole 4061 inside, and the threaded hole 4061 is meshed with the thread 4071 at one end of the main shaft 407; one end of the spline shaft 405 is fixed to the moving roller 406 The top end is connected with a spline sleeve 4051 at the other end, and the spline sleeve 4051 is rotatably connected to the moving roller 406. A gear VI 40511 is provided at the top of the spline sleeve 4051; the rotating sleeve 409 is rotatably connected to the inside of the moving roller 406, and the other end is located in the fixed roller 408; the motor VI 411 is fixed to the upper moving frame 403, and a gear VII 4111 is provided at the output end; the gear VI 40511 and the gear VII 4111 are meshed and connected; the motor I 402 provides power to drive the bidirectional threaded rod 410 to rotate, and the bidirectional threaded rod 410 drives the lower moving frame 404 to move along the guide groove 4011, and the lower moving frame 404 is driven The entire guide mechanism 4 is driven to move, so that it can adapt to stainless steel 12 of different widths; the motor VI 411 provides power to drive the spline sleeve 4051 and the spline shaft 405 to rotate through the gear VI 40511 and the gear VII 4111, the spline shaft 405 drives the moving roller 406 to rotate, and the moving roller 406 drives the spline shaft 405 to move upward along the spline sleeve through the thread; so that it can adapt to stainless steel 12 of different thicknesses; the stainless steel 12 contacts the rotating sleeve 409 during the forward movement, so that the rotating sleeve 409 rotates, which can prevent the stainless steel 12 from being worn and increase the service life of the rotating sleeve 409.

[0048] The air cooling mechanism 7 includes a cold air knife 701, a side nozzle 702, a duct 703, a heat exchange box 704, an exhaust fan 705, a protective cover 706, and a return pipe 707; a pair of cold air knives 701 are respectively installed on the side walls of the box body 1 above and below the stainless steel 12, and a plurality of side nozzles 702 are evenly connected to the side walls of the cold air knife 701; the heat exchange box 704 is fixed on the top of the box body 1, one end of the duct 703 is connected to the heat exchange box 704, and the other end is connected to the cold air knife 701; the protective cover 706 is fixed on the side wall of the box body 1, and the exhaust fan 705 is connected to the protective cover 706; one end of the return pipe 707 is connected to the heat exchange box 704, and the other end is connected to the protective cover hood 706; cold air enters the cold air knife 701 through the duct 703, and is sprayed onto the surface of the stainless steel 12 through the air outlet of the cold air knife 701, thereby cooling the stainless steel 12; at the same time, part of the cold air enters the side nozzle 702, and is sprayed toward the outlet position of the cold air knife 701 through the side nozzle 702, so that the cold air sprayed by the cold air knife 701 can move in the opposite direction of the movement of the stainless steel 12, and further can cover the surface of the stainless steel 12 with the cold air, which can not only increase the cooling area, but also evenly cool the stainless steel 12; the exhaust fan 705 extracts the hot air in the air cooling zone 5, and transports it to the heat exchange box 704 through the reflux pipe 707, so as to realize the recycling of heat.

[0049] The leveling mechanism 11 includes an upper leveling roller 1101, a lower leveling roller 1102, a movable seat 1103, a lead screw 1104, a motor VII 1105, a support frame 1106, and a mounting seat 1107; the support frame 1106 is provided with a pair of ah, symmetrically fixed on the side walls of the box body 1 on both sides of the discharge port 3; the lead screw 1104 is rotatably connected to the support frame 1106 through a bearing; the movable seat 1103 is connected to the lead screw 1104 through a thread; the upper leveling roller 1101 is rotatably connected to the movable seat 1103 connected to the lead screw 1104; the mounting seat 1107 is fixed Below the support frame 1106, the lower smoothing roller 1102 is connected to the mounting seat 1107; the motor Ⅶ1105 is fixed on the top of the support frame 1106, and the output end is connected to one end of the lead screw 1104; the motor Ⅶ1105 provides power to drive the lead screw 1104 to rotate, and the lead screw 1104 drives the moving seat 1103 to move along the support frame 1106 through the thread, and the moving seat 1103 drives the upper smoothing roller 1101 to move, thereby being able to adjust the distance between the upper smoothing roller 1101 and the lower smoothing roller 1102, and further being able to adapt to stainless steel 12 of different thicknesses.

[0050] A baffle 9031 is provided on the top of the adjusting frame 903 to prevent the oxide scale falling during the cooling process of the stainless steel 12 from clogging the lower nozzle, thereby affecting the cooling uniformity of the stainless steel 12; a water outlet 9032 is provided on the bottom side wall of the adjusting frame 903 to discharge the waste water inside the adjusting frame 903.

[0051] Embodiment 2:

[0052] The difference compared with Example 1 is

[0053] 2) Air cooling in the cooling section after annealing; there is a cold air knife in the air cooling zone, the air volume of the cold air knife is 0.25MPa, and the running speed of stainless steel is 30m / min; it can reduce the temperature of stainless steel from 1050℃ to 900℃;

[0054] 3) Water cooling zone in the cooling section after annealing; the water cooling zone is provided with an upper water cooling mechanism and a lower water cooling mechanism, which are respectively located on the upper and lower sides of the stainless steel; the upper water cooling mechanism and the lower water cooling mechanism are respectively provided with evenly distributed upper water spray pipes and lower water spray pipes, which are respectively controlled by separate solenoid valves; the water pressure of the upper water spray pipe is 0.17MPa, the water pressure of the lower water spray pipe is 0.25MPa, and the running speed of the stainless steel is 25m / min; the lower water cooling mechanism is provided with a cleaning mechanism, which can discharge the oxide scale from the upper punching belt of the stainless steel.

[0055] Embodiment 3:

[0056] The difference compared with Example 1 is

[0057] 2) Air cooling in the cooling section after annealing; a cold air knife is provided in the air cooling zone, the air volume of the cold air knife is 0.4MPa, and the running speed of the stainless steel is 35m / min; it can reduce the temperature of the stainless steel from 1100℃ to 900℃;

[0058] 3) Water cooling of the cooling section after annealing; the water cooling zone is provided with an upper water cooling mechanism and a lower water cooling mechanism, which are respectively located on the upper and lower sides of the stainless steel; the upper water cooling mechanism and the lower water cooling mechanism are respectively provided with evenly distributed upper water spray pipes and lower water spray pipes, which are respectively controlled by separate solenoid valves; the water pressure of the upper water spray pipe is 0.20MPa, the water pressure of the lower water spray pipe is 0.30MPa, and the running speed of the stainless steel is 30m / min; the lower water cooling mechanism is provided with a cleaning mechanism, which can discharge the oxide scale from the upper punching belt of the stainless steel.

[0059] Comparative Example: Using any of the annealed austenitic stainless steels in 1-3, and further using a method for controlling the shape of a hot-rolled austenitic stainless steel annealed belly plate with publication number CN117568570A to perform shape control processing;

[0060] According to the production standards, the appearance quality inspection of austenitic stainless steel and the results are as follows:

[0061] Surface inspection results of Example 1, Example 2 and Example 3: The surface of the austenitic stainless steel after annealing is smooth, without the phenomenon of big belly plate, and the surface of the strip is clean, without defects such as acid marks, scratches and indentations.

[0062] Surface inspection results of the comparative example: the surface of the austenitic stainless steel after annealing is basically flat, the austenitic stainless steel plate has a slight belly plate phenomenon, and the surface of the strip is clean without defects such as acid marks, scratches, and indentations.

[0063] According to the above conclusions, it can be known that in the test results of the above-mentioned embodiments and comparative examples, the surface of the austenitic stainless steel after annealing is smooth, and there are no defects such as acid marks and scratches; however, the surface quality of the strip steel in Examples 1-3 is the best, and the austenitic stainless steel plate of the comparative example has a slight belly plate phenomenon.

[0064] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A device for controlling the shape of hot-rolled austenitic stainless steel after annealing, which controls the shape of the hot-rolled austenitic stainless steel through an annealing cooling device, characterized in that The annealing cooling device comprises a box body, a feed port, a discharge port, an air cooling zone, a water cooling zone, a partition, and a transport roller; the feed port and the discharge port are respectively located at two ends of the box body, a slag discharge port is provided below the discharge port of the box body, a slag discharge door and an electric push rod IV are provided at the slag discharge port, and the electric push rod IV is fixed on the side wall of the box body and connected to the slag discharge door; the partition is fixed inside the box body, and the inside of the box body is divided into an air cooling zone and a water cooling zone; an air cooling mechanism is provided inside the air cooling zone, and an upper water cooling mechanism and a lower water cooling mechanism are provided inside the water cooling zone; a plurality of transport rollers are provided, which are evenly installed on the side wall of the box body; a motor VIII is provided at one end of the transport roller; a drain port is provided at the bottom of the box body; The upper water cooling mechanism includes a rotating plate, a bearing seat, a mounting frame, an upper water inlet hose, an upper water spray pipe, a motor III, an upper nozzle, and an electric push rod I; one end of the rotating plate is rotatably connected to the side wall of the partition through a connecting seat; a plurality of bearing seats are provided, which are evenly fixed on both ends of the rotating plate; the mounting frame is connected to the bearing seat; the upper water inlet hose passes through the box body, the rotating plate and the mounting frame, and is connected to the inside of the mounting frame; a rotating joint I is provided at one end of the upper water inlet hose located inside the mounting frame; one end of the upper water spray pipe is connected to the rotating joint I, and the other end is connected to the mounting frame; a gear I is provided at one end of the upper water spray pipe connected to the mounting frame; a housing is provided on the outside of the motor III, which is fixed on the side wall of the mounting frame, and a gear II is provided at the output end; the gear I and the gear II are meshed and connected; a plurality of upper nozzles are provided, which are evenly fixed on the upper water spray pipe; the electric push rod I is installed on the inner wall of the box body, and the output end is connected to the rotating plate; The lower water cooling mechanism includes a filter plate, a fixing seat, an adjustment frame, a lower water inlet hose, a lower water spray pipe, a motor IV, and an electric push rod II; the filter plate is rotatably connected to the side wall of the partition below the stainless steel through a connecting seat, the fixing seat is evenly fixed on both ends of the filter plate for several years, and the adjustment frame is connected to the corresponding fixing seat through a rotating shaft; the lower water inlet hose passes through the rotating shaft on the fixing seat and the side wall of the box body to communicate with the outside world; one end of the lower water spray pipe is connected to the lower water inlet hose through a rotating joint II, and the other end is rotatably connected to the adjustment frame through a bearing, and a gear III is provided at one end of the lower water spray pipe connected to the adjustment frame; the lower nozzle is evenly fixed on the lower water spray pipe; a shell is provided on the outside of the motor IV, which is fixed to the side wall of the adjustment frame through the shell, and a gear IV is provided on the output shaft of the motor IV; the gear III is meshingly connected with the gear IV; the electric push rod II is installed on the inner wall of the box body, and the output end is connected to the filter plate.

2. The device for controlling the shape of hot-rolled austenitic stainless steel annealed plate according to claim 1, characterized in that A cleaning mechanism is provided on the filter plate, and the cleaning mechanism includes a rack, a scraper, a gear V, a motor V, and an electric push rod III; the rack is fixed on the side wall of the fixed seat below the adjustment frame, a limit groove is provided on the top of the rack, and clearance holes are provided at both ends of the limit groove; the scraper is located on the top of the filter plate, and both ends are overlapped in the limit groove, and a connecting frame is provided on the top of the scraper; the motor V is fixed inside the scraper, and a gear V is provided at the output end; the gear V is meshed and connected with the rack; the electric push rod III is fixed at one end of the rack, and a connecting plate is provided at the output end; the connecting plate and the connecting frame are snap-connected.

3. The device for controlling the shape of hot-rolled austenitic stainless steel annealed plate according to claim 1, characterized in that The guide mechanism is installed on the outer wall of the box body at the feed inlet, and the guide mechanism includes a support plate, a motor I, an upper movable frame, a lower movable frame, a spline shaft, a movable roller, a main shaft, a fixed roller, a rotating sleeve, and a bidirectional threaded rod; a pair of support plates are provided, which are respectively fixed on the outer wall of the box body above and below the feed inlet, and a guide groove is provided on the support plate; the upper movable frame and the lower movable frame are respectively connected to the corresponding guide grooves; both ends of the bidirectional threaded rod are rotatably connected to the bottom of the support plate below the feed inlet through bearings, and the lower movable frame is connected to the bidirectional threaded rod through threads; the motor I is fixed on the side wall of the lower support frame, and The output end is connected with one end of the bidirectional threaded rod; one end of the fixed roller is fixed on the lower moving frame, one end of the main shaft is fixed inside the fixed roller, and the other end is provided with a thread; the moving roller is located above the fixed roller, and a threaded hole is provided inside the moving roller, and the threaded hole is meshed with the thread at one end of the main shaft; one end of the spline shaft is fixed to the top of the moving roller, and the other end is connected with a spline sleeve, the spline sleeve is rotatably connected to the moving roller, and a gear VI is provided on the top of the spline sleeve; the rotating sleeve is rotatably connected inside the moving roller, and the other end is located in the fixed roller; the motor VI is fixed on the upper moving frame, and a gear VII is provided at the output end; the gear VI is meshed with the gear VII.

4. The device for controlling the shape of hot-rolled austenitic stainless steel annealed flank plate according to claim 1, characterized in that The air cooling mechanism includes a cold air knife, a side nozzle, a duct, a heat exchange box, an exhaust fan, a protective cover, and a return pipe; a pair of cold air knives are provided, which are respectively installed on the side walls of the box above and below the stainless steel, and a number of side nozzles are provided and evenly connected to the side walls of the cold air knife; the heat exchange box is fixed on the top of the box, one end of the duct is connected to the heat exchange box, and the other end is connected to the cold air knife; the protective cover is fixed on the side wall of the box, and the exhaust fan is connected to the protective cover; one end of the return pipe is connected to the heat exchange box, and the other end is connected to the protective cover.

5. The device for controlling the shape of hot-rolled austenitic stainless steel annealed plate according to claim 1, characterized in that The leveling mechanism is installed on the outer wall of the box at the discharge port, and the leveling mechanism includes an upper leveling roller, a lower leveling roller, a moving seat, a lead screw, a motor VII, and a support frame; the support frame is provided with a pair of ah, which are symmetrically fixed on the side walls of the box on both sides of the discharge port; the lead screw is rotatably connected to the support frame through a bearing; the moving seat is provided with two groups, one group is fixed on the side wall of the box below the stainless steel, and the other is connected to the lead screw through a thread; the upper leveling roller is rotatably connected to the moving seat connected to the lead screw, and the lower leveling roller is connected to the moving seat fixed on the box; the motor VII is fixed on the top of the support frame, and the output end is connected to one end of the lead screw.

6. The device for controlling the shape of hot-rolled austenitic stainless steel annealed plate according to claim 1, characterized in that A shielding plate is arranged on the top of the regulating frame, and a water outlet is arranged on the side wall at the bottom of the regulating frame.

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