Nickel-saving high-strength and high-plasticity austenitic stainless steel hot continuous rolling device with double-peak structure

Abstract

The utility model discloses a nickel-saving high-strength plastic double-peak structure austenitic stainless steel hot continuous rolling device which comprises a solid solution cooling mechanism, the solid solution cooling mechanism comprises a treatment box, a plurality of supporting rollers are arranged in the treatment box, a steel belt is laid on the supporting rollers, a plurality of cooling water pipes are arranged on the upper side and the lower side of the steel belt respectively, and a plurality of fixing frames are arranged on the cooling water pipes. An adjusting device is arranged on the fixing frame, a fixing baffle I and a fixing baffle II are arranged in the treatment box, a filter plate is fixedly installed between the fixing baffle I and the fixing baffle II, and a rotating sleeve is movably installed above the filter plate. A plurality of adjusting devices are arranged on the cooling water pipe and the fixing frame, so that the angle of the high-pressure spray head can be adjusted, lateral impact force is applied to cooling water, the cooling water can be quickly separated from the surface of a steel belt, meanwhile, a filter plate and a spiral conveying blade are further installed in the treatment box, impurities can be filtered, and the service life of the high-pressure spray head is prolonged. And conveying to a specified position for recycling.

Description

Technical Field

[0001] The utility model belongs to the technical field of stainless steel hot continuous rolling, in particular to a nickel-saving high-strength and plastic double-peak structure austenitic stainless steel hot continuous rolling device. Background Art

[0002] In order to improve the performance of nickel-saving high-strength and plastic bimodal austenitic stainless steel, eliminate carbides and improve its corrosion resistance, the nickel-saving high-strength and plastic bimodal austenitic stainless steel will be solution treated, heated to a specific temperature range and kept warm for a period of time, and then the austenitic stainless steel will be quickly cooled using cooling water. The existing solution cooling device has the following problems during use: 1) The spray angle of the cooling water cannot be adjusted. The vertical spray method is the hottest and can achieve rapid cooling, but it will also prolong the time of cooling water on the surface of the steel strip, which is prone to overcooling or flaky water marks that require secondary grinding; 2) The cooling water cannot be filtered in time, resulting in impurities in the cooling water clogging the circulation pump, affecting the recycling of the cooling water.

[0003] After searching, the prior art CN218372411U discloses a stainless steel plate solution treatment device, including a stainless steel plate solution treatment device body, a cooling tower, a filter water tank, a pressurized water pump, a spray head, a protective mechanism, a sedimentation mechanism, and a circulation mechanism; the cooling water is pre-treated by the sedimentation mechanism, and then the circulating cooling water is cooled by the cooling tower, and then precipitated by multiple sedimentation tanks in the filter water tank and filtered by the filter assembly, so that the circulating cooling water fully meets the quality requirements of cooling water, thereby realizing the recycling of cooling water and greatly saving water resources; however, during use, the above technical solution cannot adjust the angle of the spray head and cannot effectively control the cooling speed, which has great limitations.

[0004] For another example, the stainless steel plate after solution treatment is cooled by a combination of immersion and air cooling. After searching, the prior art CN220127206U discloses a stainless steel hot-rolled coil cooling device, including a box, an air pump and an air jet plate. A fixed frame is welded on the top of the box, and hydraulic cylinders are embedded and installed on both sides of the top of the fixed frame, and a grid frame is installed at the bottom of the two hydraulic cylinders. Slide rods are installed on both sides of the grid frame, and slide grooves are opened on both sides of the inside of the box. Baffles are installed on both sides of the top of the grid frame, and an air pump is installed on the top of the fixed frame on the opposite side of the two hydraulic cylinders. The bottom of the fixed frame on the opposite side of the two hydraulic cylinders is installed with an air pump, and the bottom of the fixed frame on the opposite side of the two hydraulic cylinders is installed with an air jet plate. A drain pipe is embedded and installed at the front end of the box to achieve the purpose of cooling and drying; however, the above technical solution is used for cooling and drying of steel coils. After the steel strip is rolled, even if it is immersed in water, the cooling water cannot directly cool the inside of the steel coil, resulting in a large temperature difference between the inside and outside of the steel coil, which is very likely to cause edge defects. Therefore, the above cooling and drying method has great limitations during use. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a nickel-saving high-strength and high-plasticity double-peak structure austenitic stainless steel hot rolling device. In the solid solution cooling mechanism, a plurality of adjustment devices are arranged on the cooling water pipe and the fixed frame, so that the angle of the high-pressure nozzle can be adjusted, and a lateral impact force is given to the cooling water so that it can quickly separate from the surface of the steel strip. At the same time, a filter plate and a spiral conveying blade are also installed in the processing box, which can filter the impurities and transport them to the designated location for recycling.

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

[0007] A nickel-saving high-strength and high-plastic double-peak structure austenitic stainless steel hot rolling device includes a solution cooling mechanism, which includes a treatment box, a support roller, a cooling water pipe, an adjusting device, a circulating water pump I, a cooling tower, a circulating water pump II, a fixed baffle I, a fixed baffle II, a filter plate, a rotating sleeve, a spiral conveying blade, a fixed frame, an outer gear ring, a motor I, a fixed sleeve, a discharge port, and a motor II. A plurality of support rollers are arranged inside the treatment box, a steel belt is laid on the support roller, a plurality of cooling water pipes are arranged on the upper and lower sides of the steel belt, a plurality of fixed frames are arranged on the cooling water pipe, and an adjusting device is arranged on the fixed frame. A fixed baffle plate I and a fixed baffle plate II are arranged inside the sorting box, a filter plate is fixedly installed between the fixed baffle plates I and II, a rotating sleeve is movably installed above the filter plate, a spiral conveying blade is arranged inside the rotating sleeve, the rotating sleeve is movably installed inside the fixed sleeve, the fixed sleeve is fixedly installed on the side wall of the processing box, the outer gear rings arranged at both ends of the rotating sleeve are meshed and movably connected with the gears arranged at the output end of the motor I, the motor I is fixedly installed on the fixed sleeve, one side of the fixed sleeve is fixedly connected with a discharge port below, and the other side of the fixed sleeve is fixedly installed with a motor II, and the output end of the motor II is fixedly connected with a spiral conveying blade;

[0008] One side of the bottom of the treatment box is fixedly connected to one end of the circulating water pump II, and the other end of the circulating water pump II is connected to the cooling tower through a pipeline. The cooling tower can be installed around the treatment box or in an idle area of ​​the factory building. The output end of the cooling tower is connected to the circulating water pump I through a pipeline, and the other end of the circulating water pump I is connected to the cooling water pipe through a pipeline.

[0009] The adjusting device includes a connecting plate, a connecting rod, an electric telescopic rod I, a connecting hose, and a high-pressure nozzle. The connecting plate is movably installed on a fixed frame, one end of the connecting plate is movably connected to the connecting rod, and the other end is fixedly connected to the high-pressure nozzle. One end of the connecting rod is movably connected to one end of the electric telescopic rod I, and the other end of the electric telescopic rod I is movably installed on the inner wall of the processing box. The high-pressure nozzle is fixedly connected to the cooling water pipe through the connecting hose.

[0010] A side baffle is fixedly installed on the outside of the high-pressure nozzle, a guide groove is opened on the side baffle, a movable baffle is movably installed on the side baffle, one end of the movable baffle is movably installed in the guide groove, a gear arranged at one end of the movable baffle rotating shaft is movably installed in meshing with a rack, the rack is movably installed in a limit seat, the limit seat is fixedly installed on the side baffle, one side of the rack is fixedly connected to one end of the electric telescopic rod II, and the other end of the electric telescopic rod II is fixedly installed on the side baffle.

[0011] The fixing frames on two groups of adjacent cooling water pipes on the same side inside the processing box are installed in opposite directions, which can guide the adjustment device to adjust at opposite angles to avoid cooling dead corners.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1) When the high-pressure nozzle is perpendicular to the steel strip, the cooling water stays on the surface of the steel strip for the longest time and the cooling speed is the fastest. The electric telescopic rod I is extended to drive the connecting rod to move, thereby driving the connecting plate to rotate along the rotating shaft of the fixed frame, and the high-pressure nozzle at the other end of the connecting plate will be synchronously driven to rotate a certain angle, and it will not be perpendicular to the steel strip, but at a certain tilt angle. At this time, the cooling water sprayed from the high-pressure nozzle will flow rapidly to one side of the steel strip under the action of the impact force, so that it can quickly leave the surface of the steel strip, reducing the cooling speed while avoiding the cooling water from evaporating on the surface of the steel strip to produce large-area water marks. By rotating the angle of the high-pressure nozzle, the cooling speed can be adjusted and the surface dirt can be controlled, which greatly improves the quality of the steel strip;

[0014] 2) By setting several groups of fixed baffles in the processing box and setting filter plates between the fixed baffles, the cooling water containing impurities can be filtered to prevent the impurities from clogging the circulation pump, ensure the normal operation of the pipeline and the pump body, extend the maintenance cycle and reduce costs;

[0015] 3) A rotatable rotating sleeve is fitted above the filter plate, and a spiral conveying blade is arranged inside the rotating sleeve. The rotating sleeve is driven to rotate by gear transmission, and the through grooves provided therein are engaged with two sets of fixed baffles to achieve the purpose of controlling the water flow switch. When the through grooves on the rotating sleeve are located on one side of the filter plate, the cooling water is filtered normally. When the through grooves on the rotating sleeve are rotated to the side of the fixed baffle, a relatively closed cylindrical space is formed, and the spiral conveying blades are used to convey the internal impurities to one end of the discharge port for discharge, thereby realizing automatic cleaning of impurities, avoiding shutdown, greatly improving cleaning efficiency, and ensuring the service life of the pump body and pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a schematic diagram of the structure of a nickel-saving high-strength and plastic double-peak structure austenitic stainless steel hot rolling device of the utility model;

[0017] Attached Figure 2 It is a schematic diagram of the side structure of the processing box;

[0018] Attached Figure 3 This is a schematic diagram of the internal structure of the cooling device;

[0019] Attached Figure 4 Schematic diagram of filter plate installation effect;

[0020] Attached Figure 5 It is a schematic diagram of the cooling water pipe structure;

[0021] Attached Figure 6 is a schematic diagram of the fixed frame structure;

[0022] Attached Figure 7 It is a schematic diagram of the movable baffle structure;

[0023] Attached Figure 8 Schematic diagram of the spiral conveying blade structure

[0024] Attached Fig. 9 is a schematic diagram of the rotating sleeve structure;

[0025] In the figure: 10, processing box; 11, support roller; 12, cooling water pipe; 13, regulating device; 14, circulating water pump I; 15, cooling tower; 16, circulating water pump II; 17, fixed baffle I; 18, fixed baffle II; 19, filter plate; 20, rotating sleeve; 21, spiral conveying blade; 22, steel belt; 121, fixed frame; 131, connecting plate; 132, connecting rod; 133, electric telescopic rod I; 134, connecting hose; 135, high-pressure nozzle; 136, side baffle; 1361, guide groove; 137, movable baffle; 138, electric telescopic rod II; 139, rack; 1391, limit seat; 201, outer gear ring; 202, motor I; 211, fixed sleeve; 212, discharge port; 213, motor II. DETAILED DESCRIPTION

[0026] To facilitate the understanding of those skilled in the art, Figure 1-9 , the technical solution of the utility model is further specifically described.

[0027] A nickel-saving high-strength and plastic double-peak structure austenitic stainless steel hot rolling device, including a solid solution cooling mechanism, the solid solution cooling mechanism includes a processing box 10, a support roller 11, a cooling water pipe 12, an adjusting device 13, a circulating water pump I 14, a cooling tower 15, a circulating water pump II 16, a fixed baffle I 17, a fixed baffle II 18, a filter plate 19, a rotating sleeve 20, a spiral conveying blade 21, a fixed frame 121, an outer gear ring 201, a motor I 202, a fixed sleeve 211, a discharge port 212, and a motor II 213. A plurality of support rollers 11 are arranged inside the processing box 10, a steel belt 22 is laid on the support roller 11, a plurality of cooling water pipes 12 are respectively arranged on the upper and lower sides of the steel belt 22, a plurality of fixed frames 121 are arranged on the cooling water pipe 12, and an adjusting device 13 is arranged on the fixed frame 121 A fixed baffle Ⅰ17 and a fixed baffle Ⅱ18 are provided inside the processing box 10, a filter plate 19 is fixedly installed between the fixed baffle Ⅰ17 and the fixed baffle Ⅱ18, a rotating sleeve 20 is movably installed above the filter plate 19, a spiral conveying blade 21 is provided inside the rotating sleeve 20, the rotating sleeve 20 is movably installed inside the fixed sleeve 211, the fixed sleeve 211 is fixedly installed on the side wall of the processing box 10, the outer gear ring 201 provided at both ends of the rotating sleeve 20 is meshed and movably connected with the gear provided at the output end of the motor Ⅰ202, the motor Ⅰ202 is fixedly installed on the fixed sleeve 211, one side of the fixed sleeve 211 is fixedly connected with a discharge port 212, and the other side of the fixed sleeve 211 is fixedly installed with a motor Ⅱ213, and the output end of the motor Ⅱ213 is fixedly connected with the spiral conveying blade 21;

[0028] One side of the bottom of the treatment box 10 is fixedly connected to one end of the circulating water pump II 16, and the other end of the circulating water pump II 16 is connected to the cooling tower 15 through a pipeline. The cooling tower 15 can be installed around the treatment box 10 or in an idle area of ​​the factory building. The output end of the cooling tower 15 is connected to the circulating water pump I 14 through a pipeline, and the other end of the circulating water pump I 14 is connected to the cooling water pipe 12 through a pipeline.

[0029] The adjusting device 13 includes a connecting plate 131, a connecting rod 132, an electric telescopic rod I 133, a connecting hose 134, and a high-pressure nozzle 135. The connecting plate 131 is movably mounted on the fixing frame 121. One end of the connecting plate 131 is movably connected to the connecting rod 132, and the other end is fixedly connected to the high-pressure nozzle 135. One end of the connecting rod 132 is movably connected to one end of the electric telescopic rod I 133, and the other end of the electric telescopic rod I 133 is movably mounted on the inner wall of the processing box 10. The high-pressure nozzle 135 is fixedly connected to the cooling water pipe 12 through the connecting hose 134.

[0030] A side baffle 136 is fixedly installed on the outside of the high-pressure nozzle 135, and a guide groove 1361 is opened on the side baffle 136. A movable baffle 137 is movably installed on the side baffle 136. One end of the movable baffle 137 is movably installed in the guide groove 1361. The gear provided at one end of the rotating shaft of the movable baffle 137 is engaged and movably installed with a rack 139. The rack 139 is movably installed in a limit seat 1391, and the limit seat 1391 is fixedly installed on the side baffle 136. One side of the rack 139 is fixedly connected to one end of an electric telescopic rod II 138, and the other end of the electric telescopic rod II 138 is fixedly installed on the side baffle 136.

[0031] The fixing frames 121 on two groups of adjacent cooling water pipes 12 on the same side of the processing box 10 are installed in opposite directions, which can guide the adjustment device 13 to adjust the opposite angles to avoid cooling dead corners.

[0032] A nickel-saving high-strength and high-plasticity double-peak structure austenitic stainless steel hot rolling device, the working process is as follows: after hot rolling and solid solution treatment, the steel strip 22 enters the processing box 10 and is quickly cooled on the support roller 11. The cooling water is pumped into the cooling water pipe 12 through the circulating water pump Ⅰ14, and then sprayed out at the high-pressure nozzle 135 through the connecting hose 134 to quickly cool the steel strip 22. The high-pressure nozzles 135 on the front and rear cooling water pipes 12 are staggered, and the steel strip 22 can be quickly sprayed and cooled. During the cooling process, if the high-pressure nozzle 135 is vertical to the steel strip 22, the cooling speed is the fastest at this time. The electric telescopic rod Ⅰ133 is extended and retracted to drive the connecting rod 132 to move, thereby driving the connecting plate 131 along the solid solution treatment. When the rotating shaft position of the fixed frame 121 rotates, it will synchronously drive the high-pressure nozzle 135 at the other end of the connecting plate 131 to rotate a certain angle, and it will no longer be perpendicular to the steel belt 22, but will be inclined at a certain angle. At this time, the cooling water sprayed from the high-pressure nozzle 135 will quickly flow away from the surface of the steel belt 22 under the action of the impact force, thereby achieving the purpose of reducing the cooling speed. At the same time, during the water spraying process, the rack 139 can be driven to move along the limit seat 1391 by controlling the extension and contraction of the electric telescopic rod II 138, thereby driving the movable baffle 137 to rotate a certain angle along the guide groove 1361 through gear meshing, and the side baffle 136 can be used to control the area of ​​cooling water spraying, so that it can perform centralized cooling on the steel belt;

[0033] During the spray cooling process, impurities on the surface of the steel strip will be mixed in the cooling water and flow into the bottom of the treatment box 10. During the flow, they will be blocked by the fixed baffles Ⅰ17 and Ⅱ18, so that they need to be filtered through the filter plate 19. During the filtering process, the two ends of the rotating sleeve 20 are rotated by the motor Ⅰ202 through gear meshing, so that the through groove on the rotating sleeve 20 is rotated to the top of the filter plate 19. At this time, the filter plate 19 can filter the mixed wastewater normally. After the filter plate 19 has been used for a period of time, the rotating sleeve 20 is driven to rotate by the motor Ⅰ202 in conjunction with the gear transmission. , the through groove on the rotating sleeve 20 is rotated to both sides of the fixed baffle Ⅰ17 and the fixed baffle Ⅱ18. The connecting side wall on the rotating sleeve 20 will block the filter plate 19 and the upper end inlet, so that the mixed wastewater cannot enter. At this time, the spiral conveying blade 21 is driven by the motor Ⅱ213 to rotate, so that the impurities on the filter plate 19 are transported to the fixed sleeve 211 on the side where the discharge port 212 is provided, and the discharge port 212 discharges the impurities for unified collection and management. The filtered cooling water is pumped into the cooling tower 15 by the circulating water pump Ⅱ16 for cooling and can be recycled.

[0034] 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 nickel-saving high-strength and high-plastic bimodal structure austenitic stainless steel hot rolling device, including a solution cooling mechanism, the solution cooling mechanism includes a treatment box, a support roller, a cooling water pipe, a regulating device, a circulating water pump I, a cooling tower, a circulating water pump II, a fixed baffle I, a fixed baffle II, a filter plate, a rotating sleeve, a spiral conveying blade, a fixed frame, an outer gear ring, a motor I, a fixed sleeve, a discharge port, and a motor II, characterized in that A plurality of supporting rollers are arranged inside the processing box, steel belts are laid on the supporting rollers, a plurality of cooling water pipes are arranged on the upper and lower sides of the steel belts respectively, a plurality of fixing frames are arranged on the cooling water pipes, and an adjusting device is arranged on the fixing frames. A fixed baffle I and a fixed baffle II are arranged inside the processing box, a filter plate is fixedly installed between the fixed baffle I and the fixed baffle II, a rotating sleeve is movably installed above the filter plate, a spiral conveying blade is arranged inside the rotating sleeve, the rotating sleeve is movably installed inside the fixed sleeve, the fixed sleeve is fixedly installed on the side wall of the processing box, the outer gear rings arranged at both ends of the rotating sleeve are meshed and movably connected with the gears arranged at the output end of the motor I, the motor I is fixedly installed on the fixed sleeve, one side of the fixed sleeve is fixedly connected with a discharge port below, and the other side of the fixed sleeve is fixedly installed with a motor II, and the output end of the motor II is fixedly connected with a spiral conveying blade; One side of the bottom of the treatment box is fixedly connected to one end of the circulating water pump II, and the other end of the circulating water pump II is connected to the cooling tower through a pipeline. The cooling tower can be installed around the treatment box or in an idle area of ​​the factory building. The output end of the cooling tower is connected to the circulating water pump I through a pipeline, and the other end of the circulating water pump I is connected to the cooling water pipe through a pipeline.

2. The hot rolling device of nickel-saving high-strength and high-ductility double-peak structure austenitic stainless steel according to claim 1 is characterized in that The adjusting device includes a connecting plate, a connecting rod, an electric telescopic rod I, a connecting hose, and a high-pressure nozzle. The connecting plate is movably installed on a fixed frame, one end of the connecting plate is movably connected to the connecting rod, and the other end is fixedly connected to the high-pressure nozzle. One end of the connecting rod is movably connected to one end of the electric telescopic rod I, and the other end of the electric telescopic rod I is movably installed on the inner wall of the processing box. The high-pressure nozzle is fixedly connected to the cooling water pipe through the connecting hose.

3. The hot rolling device of nickel-saving high-strength and high-ductility double-peak structure austenitic stainless steel according to claim 1 is characterized in that The fixing frames of two groups of adjacent cooling water pipes on the same side inside the processing box are installed in opposite directions.

4. The hot rolling device for nickel-saving high-strength and high-ductility double-peak structure austenitic stainless steel according to claim 2 is characterized in that A side baffle is fixedly installed on the outside of the high-pressure nozzle, a guide groove is opened on the side baffle, a movable baffle is movably installed on the side baffle, one end of the movable baffle is movably installed in the guide groove, a gear arranged at one end of the movable baffle rotating shaft is movably installed in meshing with a rack, the rack is movably installed in a limit seat, the limit seat is fixedly installed on the side baffle, one side of the rack is fixedly connected to one end of the electric telescopic rod II, and the other end of the electric telescopic rod II is fixedly installed on the side baffle.

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