Quenched steel plate shape detection and adjustment equipment

Abstract

The utility model relates to the technical field of quenching steel plate shape detection and adjustment, and discloses quenching steel plate shape detection and adjustment equipment which comprises a quenching machine, a plate shape detector and a quenching machine system, the quenching machine system comprises a first-stage system, a second-stage system and a third-stage system; various steel plate information is stored in the third-stage system; quenching processes of various steel plates are stored in the secondary system; selecting a corresponding quenching process according to the information transmitted by the third-stage system and transmitting the quenching process to the first-stage system; the primary system controls the quenching machine in real time according to the quenching process parameters transmitted by the secondary system; the plate shape detector is used for detecting the quenched steel plate; and judging whether the shape of the steel plate is qualified or not according to the steel plate information transmitted by the third-stage system, judging defects existing in an unqualified area, adjusting the quenching process of the unqualified plate shape according to the corresponding defects, and sending the adjusted quenching process to the second-stage system to cover the original quenching process.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel plate quenching plate shape detection, adjustment technical field more specifically, relate to a kind of quenching steel plate plate shape detection adjustment equipment. BACKGROUND

[0002] Steel plate such as engineering machinery steel, wear-resistant steel, low-temperature storage tank steel needs to be produced by quenching and tempering, and the pass rate of the plate shape of the wide and thick plate after quenching is a bottleneck problem of the steel plant. The same quenching process cannot guarantee the pass rate of the plate shape of the wide and thick plate during continuous quenching due to the influence of the quenching cooling water temperature change caused by the equipment precision, season and temperature difference between morning and evening. The plate shape needs to be measured continuously during the quenching process, and the quenching process is adjusted according to the measurement results. Since the production rhythm of the wide and thick plate quenching is relatively fast, a long time is needed for process adjustment after plate shape measurement, which leads to a low pass rate of the plate shape of the wide and thick plate during continuous production process. The steel plate with unqualified plate shape needs to be straightened or quenched again, which seriously affects the production capacity improvement of the steel plant and leads to a large amount of waste of power consumption and coal consumption.

[0003] Plate shape measuring instruments have been applied in production by more and more steel plants, which effectively improves the product quality detection speed of plate strip. In order to improve the pass rate of the wide and thick plate quenching, most of the steel plants currently research the quenching process itself, and cannot realize the real-time adjustment of the quenching process to overcome the plate shape fluctuation caused by temperature change.

[0004] The invention patent with the application number CN201910106745.9 discloses an integrated method for controlling the plate shape of steel plate quenching. The method only considers the control of the quenching process, and cannot guarantee the quenching plate shape by plate shape detection and real-time adjustment of the quenching process.

[0005] The invention patent application with the application number CN202210520344.X discloses a plate shape online detection device and method suitable for the controlled cooling area of wide and thick plate. The method is mainly suitable for the water cooling area of rolling mill and is not applied to the heat treatment quenching machine. Moreover, the method cannot realize the real-time adjustment of the production process according to the detection results of the plate shape, and there is a time delay in the process adjustment of the plate shape.

[0006] The utility model patent with the application number CN202022780690.0 discloses a plate shape measuring instrument. The plate shape measuring instrument is convenient to process and install, can effectively avoid the coupling problem between the strip and the sensor, and improves the plate shape measurement precision. The plate shape measuring instrument is not applied to the heat treatment quenching machine, cannot realize the real-time adjustment of the production process according to the detection results of the plate shape, and cannot quickly improve the pass rate of the plate shape.

[0007] Therefore, a rapid and efficient steel plate plate shape automatic detection and automatic real-time quenching process adjustment equipment is needed. UTILITY MODEL CONTENT

[0008] The utility model aims at overcoming at least one of the prior art defects, provide a quenching steel plate shape detection adjustment equipment for solving because the wide thick plate quenching production rhythm is faster, after the plate shape measurement, the time needed for process adjustment is longer, the adjustment is not timely leads to the plate shape qualified rate of continuous production wide thick plate is low, the steel plate of appearing unqualified plate shape needs to be straightened or re-quenched, seriously influence the production capacity promotion of steel plant, cause a large amount of power consumption and coal consumption simultaneously.

[0009] The utility model discloses a quenching steel plate shape detection adjustment equipment, including quenching machine, plate shape detector and quenching machine system, the quenching machine system includes primary system, secondary system and tertiary system, the tertiary system stores various steel plate's information, the secondary system stores various steel plate's quenching technology, according to the information of tertiary system transmission selects corresponding quenching technology and transmits it to primary system, the primary system controls quenching machine according to the quenching technology parameter of secondary system transmission, the plate shape detector is used to detect the steel plate after quenching, judges whether the steel plate appearance is qualified according to the steel plate information of tertiary system transmission, judges the defect of unqualified area existence, adjusts the quenching technology of unqualified plate shape according to corresponding defect, sends the quenching technology after adjustment to secondary system and covers the original quenching technology.

[0010] As preferred: the steel plate information includes steel grade, steel plate number, steel plate thickness, steel plate width, steel plate length and steel plate heating temperature.

[0011] As preferred: the quenching technology includes roll speed, roll gap width and the flow of each nozzle.

[0012] As preferred: the plate shape detector includes movable roll, portal frame, imaging system and cooling system, the movable roll is used for conveying steel plate, the portal frame is installed on movable track, sets up along movable track width direction, the imaging system is installed on portal frame, is used to gather the image of steel plate, the cooling system is installed on portal frame, is used to cool imaging system.

[0013] As preferred: the lower portion of portal frame is provided with support leg, the support leg is provided with straight ladder, and the both ends of portal frame are provided with guardrail.

[0014] As preferred: the imaging system includes industrial camera and laser, the laser is used for emitting infrared laser to steel plate, and the industrial camera can shoot the infrared laser line reflected by the steel plate.

[0015] As preferred: the industrial camera is provided with three groups, each group has three, the direction of the three groups of industrial camera connection is parallel to the width direction of the moving roller, each group of industrial camera can shoot the area within 0.5m in the length direction of the roller.

[0016] As preferred: the laser is provided with three, the direction of the three laser connection is parallel to the width direction of the moving roller, each laser corresponds to a group of industrial camera, each laser can emit three infrared laser lines, and each industrial camera can shoot one of the infrared laser lines reflected by the steel plate. Through the real-time monitoring of the images of the steel plate in the left, middle and right three areas of the moving track by the three groups of industrial cameras, the use of three groups of industrial cameras has high resolution, and through segmented acquisition, higher resolution can be used for shooting in each small area, so that more clear details can be obtained. The size and position of each segment can be adjusted according to actual needs, which is suitable for target areas of different shapes and sizes, and has high flexibility; small size image files are easier to manage and transmit, reducing the demand for storage and network resources; and multiple segments can be processed at the same time, improving the processing speed and efficiency.

[0017] As preferred: the cooling system includes a water cooling box, a cooling pipeline and a temperature sensor, the temperature sensor is installed on the industrial camera and the laser, one end of the cooling pipeline is connected with the water outlet of the water cooling box, the other end of the cooling pipeline is connected with the water inlet of the water cooling box after passing through the nine industrial cameras and the three lasers in turn, and the water pump is arranged in the water cooling box. By installing temperature sensors on the industrial camera and the laser, and combining with the control unit to realize temperature monitoring and automatic adjustment, the working state of the equipment can be monitored in real time, and the occurrence of overheating phenomenon can be prevented, thereby further improving the stability and safety of the system.

[0018] As preferred: the quenching machine is provided with a high pressure section and a low pressure section, the length of the high pressure section is 3.4m, and the length of the low pressure section is 15.6m.

[0019] Compared with the prior art, the plate shape detector feeds back the detection result to the plate shape detector system, the plate shape detector system stores the judgment standard of whether the steel plate is qualified, automatically judges whether the plate shape of the steel plate is qualified according to the information of the steel type, the thickness of the steel plate and the width of the steel plate sent by the three-level system, the plate shape detector system stores the quenching process adjustment strategy corresponding to various unqualified plate shapes, the plate shape detector system judges which area of the steel plate does not conform to the standard according to the detection condition, automatically retrieves the corresponding process adjustment strategy, and sends the process adjustment strategy to the quenching machine secondary system, the secondary system sends the adjusted quenching process to the primary system, and the primary system adjusts the parameters of the quenching machine in real time according to the quenching process of the secondary system, so that the manual intervention adjustment is effectively reduced, the steel plate quenching plate shape qualified rate is greatly improved, the number of straightening or re-quenching of the steel plate after quenching is reduced, the production efficiency can be effectively improved, and a large amount of power consumption and coal consumption cost can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model of the whole structure block diagram.

[0021] Figure 2 The structure diagram of the plate shape detector of the utility model.

[0022] Figure 3 The structure diagram of the quenching machine of the utility model.

[0023] Figure 4 The zoning diagram of the steel plate of the utility model.

[0024] In the drawing: 1, first nozzle;2, second nozzle;3, third nozzle;4, fourth nozzle;5, fifth nozzle;6, sixth nozzle;7, seventh nozzle;8, eighth nozzle;9, first area;10, second area;11, third area;12, fourth area;13, fifth area;14, steel plate;15, lower roller way;16, upper roller way;17, straight ladder;18, crossbeam frame;19, guardrail;20, laser box;21, door type frame;22, camera box;23, roller way guard plate;24, water cooling box;25, gas distribution pipe;26, cooling pipeline;27, inclined support. DETAILED DESCRIPTION

[0025] The utility model drawing is only used for example explanation, and can not be understood as the limitation of the utility model. In order to better illustrate the following embodiment, some components of the drawing will be omitted, enlarged or reduced, and the size of actual product is not represented;For those skilled in the art, it is understandable that some well-known structures and their description in the drawing can be omitted.

[0026] As Figures 1-4As shown, a quenching steel plate shape detection adjusting device comprises a shot blasting machine, a heat treatment furnace, a quenching machine, a plate shape detector, a quenching machine system and a plate shape detector system.

[0027] The shot blasting machine is provided with a shot blasting roller way for conveying the steel plate 14 to perform shot blasting treatment on the steel plate 14; the heat treatment furnace is used for heating the steel plate 14; the quenching machine adopts cooling water to quench the steel plate 14; the plate shape detector is used for plate shape detection on the quenched steel plate 14; the quenching machine system is used for controlling the quenching of the quenching machine; and the plate shape detector system can adjust the quenching process parameters according to the plate shape detection result of the plate shape detector on the steel plate 14.

[0028] In the present scheme, the thickness of the steel plate 14 is 6mm-20mm, the width is 1500mm-4100mm, the speed of the shot blasting roller way is 1.5m / min-4.5m / min, the diameter of the shot blasting shot is 1.0mm-1.2mm; the heat treatment furnace is a roller bottom type continuous heat treatment furnace, the furnace temperature of the heat treatment furnace is set to 910℃-930℃, the quenching temperature of the heat treatment furnace is 890℃-910℃, the heating time of the heat treatment furnace is 1.1min / mm-1.5min / mm, the furnace time of the steel plate 14 is 25min-55min, and the holding time of the steel plate 14 after heating in the heat treatment furnace is 5-15min.

[0029] The quenching machine is a roller gap type quenching machine, which comprises an upper roller way 16 and a lower roller way 15, the lower roller way 15 is arranged below the upper roller way 16, and the upper roller way 16 and the lower roller way 15 are oppositely arranged to form a plurality of pairs of rollers, the plate shape detector is arranged behind the quenching machine, a detection grating is installed at the entrance of the quenching machine, and an encoder is installed on the roller way of the quenching machine, the detection grating and the encoder cooperate and can calculate the position of the steel plate 14 in the quenching machine according to the roller way speed of the quenching machine.

[0030] The quenching machine is provided with a high-pressure section and a low-pressure section, the length of the high-pressure section is 3.4 m, and the length of the low-pressure section is 15.6 m; the high-pressure section comprises a first part and a second part, the first part of the high-pressure section comprises a first nozzle 1, a second nozzle 2, a third nozzle 3 and a fourth nozzle 4, a group of first nozzles 1 is arranged above the steel plate 14, a group of second nozzles 2 is arranged below the steel plate 14, the first nozzles 1 and the second nozzles 2 are oppositely arranged, a group of third nozzles 3 is arranged above the steel plate 14, a group of fourth nozzles 4 is arranged below the steel plate 14, the third nozzles 3 and the fourth nozzles 4 are oppositely arranged, and the first nozzles 1, the second nozzles 2, the third nozzles 3 and the fourth nozzles 4 are all slit nozzles; the second part of the high-pressure section comprises a fifth nozzle 5 and a sixth nozzle 6, four groups of fifth nozzles 5 are arranged above the steel plate 14, four groups of sixth nozzles 6 are arranged below the steel plate 14, and the fifth nozzles 5 and the sixth nozzles 6 are oppositely arranged; the low-pressure section is provided with a seventh nozzle 7 and an eighth nozzle 8, twelve groups of seventh nozzles 7 are arranged above the steel plate 14, twelve groups of eighth nozzles 8 are arranged below the steel plate 14, and the seventh nozzles 7 and the eighth nozzles 8 are oppositely arranged; the fifth nozzles 5, the sixth nozzles 6, the seventh nozzles 7 and the eighth nozzles 8 are all high-density nozzles; the number of each group is not less than two, all the nozzles are provided with a flow meter for detecting flow and an air valve for controlling the size of flow, the water pressure of the nozzles of the high-pressure section is 0.79-0.81 MPa, and the flow is 1550-2650 m3 / h, the water pressure of the nozzles of the low-pressure section is 0.3-0.5 MPa, and the flow is 1550-2050 m3 / h; the roller speed of the quenching machine is 6-13 m / min, the roller speed of the plate shape detector is 1.5-24 m / min, and the distance between the upper roller 16 of the quenching machine and the upper surface of the steel plate 14 is 0.2-0.6 mm.

[0031] The quenching machine system comprises a three-level system, a two-level system and a one-level system, the three-level system stores information of the steel plate 14, the information of the steel plate 14 comprises the steel type, the plate number, the plate thickness, the plate width, the plate length and the plate heating temperature of the steel plate 14, the two-level system stores the quenching process corresponding to different types of steel plates 14, and the one-level system controls the roller speed of the quenching machine, the cooling water flow of the nozzles, the opening number of the air valves of the nozzles and other quenching process parameters in real time according to the quenching process of the two-level system.

[0032] The quenching machine and the system thereof involved in the present solution are described above, and the present solution further discloses a quenching steel plate shape detector having a plate shape detector system, which stores the judgment standard of whether the steel plate 14 is qualified and the quenching process adjustment strategy corresponding to the unqualified plate shape of the steel plate 14. According to the detection result of the plate shape detector on the plate shape of the steel plate 14, the corresponding quenching process after adjustment is sent to the secondary system, and then the primary system controls the roller speed of the quenching machine, the cooling water flow of the nozzle, the opening number of the air valve of the nozzle, etc. according to the adjusted quenching process in the secondary system, so as to realize real-time adjustment. If the plate shape of the steel plate 14 produced by quenching after adjusting the quenching process is qualified, the quenching process after adjustment is used to cover the quenching process before adjustment in the secondary system, and the subsequent steel plate 14 is quenched by using the adjusted quenching process.

[0033] The plate shape detector includes a moving roller, a gantry, an imaging system and a cooling system. The steel plate 14 passes through the plate shape detector along the length direction of the moving roller, and the speed of the moving roller is 1.5 m / min-24 m / min. The gantry is arranged above the moving roller and is erected along the width direction of the moving roller. The imaging system is arranged on the gantry and is used to collect the image of the steel plate 14. The steel plate information obtained by converting the image of the steel plate 14 collected by the imaging system is compared with the steel plate information in the tertiary system. If it meets the judgment standard of the steel plate 14, it is qualified and the solidification process production is continued. If it does not meet the judgment standard of the steel plate 14, it is unqualified, and the unqualified area and the specific defects on the steel plate 14 are automatically identified as follows: first, a partition is established on the steel plate 14. The partition area on the steel plate 14 is as follows: the head and tail of the steel plate 14 are the first area 9 and the second area 10, the two sides of the steel plate 14 are the third area 11 and the fourth area 12, and the remaining middle part is the fifth area 13. The defects existing in the unqualified area are as follows: the defects appearing in the head and tail of the steel plate 14 are head warping and tail warping. The head warping in the first area 9 is defined as area one warping, and the tail warping in the first area 9 is defined as area one warping. The head warping in the second area 10 is defined as area two warping, and the tail warping in the second area 10 is defined as area two warping. The defects appearing in the two sides of the steel plate 14 are waviness, which are respectively defined as area three waviness and area four waviness. The defects appearing in the middle part of the steel plate 14 are concave and convex, which are respectively defined as area five concave and area five convex.

[0034] The cooling system is used to cool the imaging system. The gantry is provided with support legs, and the support legs are provided with four support legs, which are respectively connected with the bottom of the two sides of the gantry. The support legs are provided with straight ladders 17, and the two ends of the gantry are provided with guardrails 19. The moving roller is provided with roller guard plates 23.

[0035] The imaging system comprises an industrial camera and a laser. The industrial camera is provided with three groups, each group comprising three industrial cameras. The connecting lines of the nine industrial cameras are parallel to the width direction of the moving roller way. The nine industrial cameras are evenly distributed above the moving roller way. Each group of industrial cameras can capture a visible area of 0.5 m in the length direction of the steel plate 14 (i.e. the length direction of the moving roller way). The laser is a linear laser. The laser is provided with three lasers. The connecting lines of the centers of the three lasers are parallel to the width direction of the moving roller way. The three lasers are evenly distributed above the moving roller way. Each laser corresponds to a group of industrial cameras. Each laser can emit three infrared laser lines. Each industrial camera can capture one infrared laser line reflected by the steel plate 14. Specifically, the gantry comprises a lower door-shaped frame 21. The door-shaped frame 21 is provided with an inclined support 27 to improve the structural strength. The upper part is a beam frame 18. The beam frame 18 is provided with a laser box 20 and a camera box 22. The industrial cameras are arranged in the camera box 22. The lasers are arranged in the laser box 20. Cooling pipes 26 are arranged on the beam frame 18. The beam frame 18 is also provided with a gas distribution pipe 25. The gas distribution pipe is used to control the opening and closing of some pneumatic valves.

[0036] The plate shape detector has a plate shape detector system. The plate shape detector detects the plate shape of the steel plate 14 and feeds back the detection result to the plate shape detector system. The plate shape detector system stores a judgment standard for whether the steel plate 14 is qualified. According to the information of the steel grade, the thickness of the steel plate, the width of the steel plate and the like sent by the three-level system, the plate shape detector system automatically judges whether the plate shape of the steel plate 14 is qualified. The plate shape detector system stores various unqualified plate shape corresponding quenching process adjustment strategies. According to the detection condition, the plate shape detector system judges which area of the steel plate 14 does not conform to what standard, automatically retrieves the corresponding process adjustment strategy, and sends the adjusted process to the quenching machine two-level system. If the plate shape is qualified, the solidification process is produced.

[0037] The working principle of the quenching process adjustment strategy is that before the steel plate 14 leaves the heat treatment furnace, the heat treatment furnace sends the information of the steel plate 14, such as the steel plate number, the steel grade, the steel plate thickness, the steel plate width and the plate shape qualified standard, to the plate shape instrument detection system. After the steel plate 14 is quenched by the quenching machine, the plate shape of the steel plate 14 is automatically detected when the head of the steel plate 14 reaches the plate shape detector. After the plate shape detection is completed, the plate shape detector feeds back the detection result to the plate shape instrument detection system. According to the detection result, the plate shape instrument detection system automatically judges whether the plate shape of the steel plate 14 is qualified. If the plate shape of the steel plate 14 is qualified, the steel grade, the thickness and the width of the next steel plate 14 are automatically retrieved. If the information of the steel plate 14 is the same as that of the last qualified steel plate 14, the process is fixed, and the production is continuous. If the plate shape of the steel plate 14 is unqualified, the position of the unqualified plate shape is automatically judged, and the corresponding process adjustment strategy is automatically retrieved. At the same time, the plate shape instrument detection system sends the adjustment strategy to the quenching machine secondary system. According to the quenching model strategy given by the plate shape detector, the quenching machine secondary system automatically adjusts the flow of the cooling water of the nozzle, the roller speed of the quenching machine and other quenching process parameters. After the adjustment is completed, the plate shape of the subsequent steel plate 14 is detected by the plate shape detector. If the plate shape of the steel plate 14 is qualified, the steel plate 14 is quenched by the adjusted process. If the plate shape is unqualified, the quenching process parameters are adjusted by the quenching machine secondary system until the plate shape of the steel plate 14 is qualified. In this way, the online automatic real-time adjustment of the plate shape of the wide and heavy plate heat treatment quenching is realized. In the case that the plate shape of the previous steel plate 14 is unqualified, the subsequent steel plate 14 can use the adjusted quenching process parameters in time.

[0038] When the plate shape detector judges whether the information of the current steel plate 14 and the last steel plate 14, such as the steel grade, the width and the thickness, is consistent, if only one of the steel grade, the width and the thickness is different, the quenching machine does not adjust the quenching process, but quenches according to the corresponding process in the original database of the quenching machine secondary system.

[0039] The cooling system includes a water cooling box 24, a cooling pipeline 26 and temperature sensors. The industrial cameras and the lasers are each provided with a temperature sensor. One end of the cooling pipeline 26 is connected with a water outlet of the water cooling box 24. The other end of the cooling pipeline 26 is connected with a water inlet of the water cooling box 24 in sequence through nine industrial cameras and three lasers. A water pump is arranged in the water cooling box 24 to provide water circulation power. The industrial cameras and the lasers can be cooled through the cooling pipeline 26.

[0040] An example of unqualified plate shape process adjustment includes the following steps:

[0041] (1) The steel grades of the three steel plates 14 are all NM400, the thicknesses are all 6 mm, and the widths are all 2500 mm.

[0042] (2) Steel plate 14 is subjected to shot blasting before quenching, the shot blasting roller speed is 2.0 m / min, and the shot blasting shot diameter is 1.0 mm-1.2 mm.

[0043] (3) The heating process control of the heat treatment furnace: the quenching temperature of the heat treatment furnace is 910℃, and the furnace time of the steel plate 14 is 20 min.

[0044] (4) The quenching cooling process control: the water pressure of the high-pressure section is set to 0.8 MPa, the water pressure of the low-pressure section is set to 0.4 MPa, the roller gap is set to 6.6 mm, the roller speed of the quenching machine is 12 m / min, the flow of the first nozzle 1 and the second nozzle 2 is 650 m 3 / h, the flow of the third nozzle 3 and the fourth nozzle 4 is 650 m 3 / h, the flow of the fifth nozzle 5, the sixth nozzle 6, the seventh nozzle 7 and the eighth nozzle 8 is 400 m 3 / h, and the total flow of all nozzles is 1700 m 3 / h.

[0045] (5) After the first steel plate 14 is quenched, it enters the plate shape detector, and the detection result of the first steel plate 14 by the plate shape detector is that the head is warped in area one, and the unevenness is 17 mm / 2 m. Before the head of the second steel plate 14 exits the heat treatment furnace, the heat treatment furnace sends the information of the thickness, width and length of the steel plate to the quenching machine and the plate shape detector (while checking the information sending time). The plate shape detector judges the information of the steel grade, width and thickness of the steel plate 14, the plate shape detector system adjusts the corresponding quenching process according to the detection result of the first steel plate 14, and sends the adjusted process to the quenching machine secondary system. The quenching machine secondary system automatically increases the roller speed of the quenching machine by 2% based on the existing speed, and sends the adjusted process to the quenching machine primary system, and the primary system controls the roller to speed up by 2%. The second steel plate 14 enters the quenching machine and is quenched according to the adjusted process. After the steel plate 14 is quenched, it enters the plate shape detector, and the detection result of the plate shape detector is that the head is warped in area one, and the unevenness is 8 mm / 2 m, which meets the national standard.

[0046] (6) Before the head of the third steel plate 14 exits the furnace, the heat treatment furnace sends the information of the thickness, width and length of the steel plate to the quenching machine and the plate shape detector (checks the information sending time). The plate shape detector judges the information of the steel plate 14, and because the detection result of the second steel plate 14 is qualified, the plate shape detector system does not send an adjustment command to the secondary system, and the quenching machine automatically retrieves the quenching process of the second steel plate 14 for quenching, and automatically covers the process in the original quenching machine secondary database.

[0047] Table 1: Detection results of three steel plates of Example 1

[0048]

[0049] Example 2

[0050] (1) The steel grade of the first steel plate 14 is NM360, the thickness is 8 mm, and the width is 3600 mm. The steel grade of the second steel plate 14 and the third steel plate 14 is NM400, the thickness is 10 mm, and the width is 2500 mm.

[0051] (2) Before quenching, the steel plate 14 is subjected to shot blasting treatment, the shot blasting roller speed is 2.0 m / min, and the diameter of the shot blasting shot is 1.0 mm-1.2 mm.

[0052] (3) The heating process control of the hot treatment furnace: the quenching temperature is 910℃, and the furnace time of the steel plate 14 is 30 min.

[0053] (4) The quenching cooling process control of the first steel plate 14: the water pressure of the high-pressure section is set to 0.8 MPa, the water pressure of the low-pressure section is set to 0.4 MPa, the roller gap is set to 8.8 mm, the roller speed of the quenching machine is 10 m / min, the flow rate of the first nozzle 1, the second nozzle 2, the third nozzle 3, and the fourth nozzle 4 is 760 m 3 / h, the flow rate of the fifth nozzle 5, the sixth nozzle 6, the seventh nozzle 7, and the eighth nozzle 8 is 800 m 3 / h, and the total flow rate of all nozzles is 2320 m 3 / h.

[0054] (5) After the first steel plate 14 is quenched, it enters the plate shape detector, and the plate shape detector detects that the head of the first steel plate 14 is in area one, and the unevenness is 16 mm / 2 m. Before the second steel plate 14 is discharged from the furnace, the hot treatment furnace sends the thickness, width, and length information of the steel plate 14 of the second steel plate 14 to the quenching machine and the plate shape detector system. The plate shape detector system determines that the steel grade and thickness of the second steel plate 14 are inconsistent with those of the first steel plate 14, and automatically quenches according to the corresponding process in the secondary original database of the quenching machine.

[0055] (6) The quenching cooling process control of the second steel plate 14: the water pressure of the high-pressure section is set to 0.8 MPa, the water pressure of the low-pressure section is set to 0.4 MPa, the roller gap is set to 11 mm, the roller speed of the quenching machine is 8.6 m / min, the flow rate of the first nozzle 1, the second nozzle 2, the third nozzle 3, and the fourth nozzle 4 is 800 m 3 / h, the flow rate of the fifth nozzle 5, the sixth nozzle 6, the seventh nozzle 7, and the eighth nozzle 8 is 860 m 3 / h, and the total flow rate of all nozzles is 2460 m 3 / h.

[0056] (7) the second steel plate 14 enters the plate shape detector after quenching, and the detection result of the plate shape detector is area one head, and the unevenness is 14mm / 2m. Before the head of the third steel plate 14 is discharged, the heat treatment furnace sends the information of the thickness, width and length of the third steel plate 14 to the quenching machine and the plate shape detector. The steel grade, width and thickness are all the same as those of the second steel plate, the quenching machine automatically increases the roller speed of the quenching machine by 5% on the basis of the existing speed, and the third steel plate 14 enters the plate shape detector after quenching, and the detection result of the plate shape detector is area one head, and the unevenness is 5mm / 2m, which meets the national standard.

[0057] Table 2: detection results of three steel plates of example 2

[0058]

[0059] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0060] The problem of batch plate shape not meeting the requirements caused by seasonal temperature changes and unstable equipment state of the 6mm-100mm thick wide and thick plate steel plate 14 is solved, manual intervention adjustment is effectively reduced, the quenching plate shape qualified rate of the steel plate 14 is greatly improved, and the number of the steel plate 14 quenched due to plate shape not meeting the requirements is reduced. The production efficiency can be effectively improved, and a large amount of power consumption and coal consumption cost is saved.

[0061] Obviously, the above-mentioned embodiments of the present application are only examples for clearly illustrating the technical scheme of the present application, and are not a limitation on the specific embodiments of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for detecting and adjusting the shape of quenched steel plates, characterized in that: The quenching machine, the plate shape detector and the quenching machine system are included. The quenching machine system includes a first-level system, a second-level system and a third-level system. The third-level system stores information of the steel plate. The second-level system stores quenching processes of the steel plate, selects a corresponding quenching process according to the information transmitted by the third-level system and transmits the quenching process to the first-level system. The first-level system controls the quenching machine in real time according to the quenching process parameters transmitted by the second-level system. The plate shape detector is used for detecting the quenched steel plate, judging whether the shape of the steel plate is qualified according to the information of the steel plate transmitted by the third-level system, judging the defects existing in the unqualified area and adjusting the quenching process of the unqualified plate shape according to the corresponding defects, and transmitting the adjusted quenching process to the second-level system and covering the original quenching process.

2. The plate shape detection adjusting apparatus of a quenched steel plate according to claim 1, characterized by: The information of the steel plate includes the steel type, the steel plate number, the steel plate thickness, the steel plate width, the steel plate length and the steel plate heating temperature.

3. The plate shape detection adjusting apparatus of a quenched steel plate according to claim 1, characterized by: The quenching process includes the roller speed, the roller gap width and the flow of each nozzle.

4. The plate shape detection adjusting apparatus of a quenched steel plate according to claim 1, characterized by: The plate shape detector includes a moving roller, a gantry, an imaging system and a cooling system. The moving roller is used for conveying the steel plate, the gantry is installed on the moving track and arranged along the width direction of the moving track, the imaging system is installed on the gantry and used for collecting the image of the steel plate, and the cooling system is installed on the gantry and used for cooling the imaging system.

5. The apparatus for detecting and adjusting the shape of a quenched steel plate according to claim 4, wherein: Supporting legs are arranged below the gantry, straight ladders are arranged on the supporting legs, and guardrails are arranged at both ends of the gantry.

6. The apparatus for detecting and adjusting the shape of a quenched steel plate according to claim 4, wherein: The imaging system includes industrial cameras and lasers, the lasers are used for emitting infrared lasers to the steel plate, and the industrial cameras can shoot the infrared laser lines reflected by the steel plate.

7. The apparatus for detecting and adjusting the shape of a quenched steel plate according to claim 6, wherein: Three groups of industrial cameras are arranged, each group includes three industrial cameras, the directions of the lines of the three groups of industrial cameras are parallel to the width direction of the moving roller, and each group of industrial cameras can shoot the area within at least 0.5m in the length direction of the roller.

8. The apparatus for detecting and adjusting the shape of a quenched steel plate according to claim 7, wherein: Three lasers are arranged, the directions of the lines of the three lasers are parallel to the width direction of the moving roller, each laser corresponds to a group of industrial cameras, each laser can emit three infrared laser lines, and each industrial camera can shoot one infrared laser line reflected by the steel plate.

9. The apparatus for detecting and adjusting the shape of a quenched steel plate according to claim 8, wherein: The cooling system includes a water cooling box, cooling pipelines and temperature sensors, the temperature sensors are arranged on the industrial cameras and the lasers, one end of the cooling pipeline is connected with the water outlet of the water cooling box, the other end of the cooling pipeline is connected with the water inlet of the water cooling box after sequentially passing through nine industrial cameras and three lasers, and a water pump is arranged in the water cooling box.

10. The apparatus for detecting and adjusting the shape of a quenched steel plate according to any one of claims 1 to 9, characterized in that: The quenching machine includes a high-pressure section and a low-pressure section, the length of the high-pressure section is 3.4m, and the length of the low-pressure section is 15.6m.

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