High-temperature steel bar anti-splashing protection device

Abstract

The invention discloses an anti-splashing protection device for a high-temperature steel bar, relates to the technical field of steel bar production, and solves the problems of insufficient protection reliability and incapability of realizing all-working-condition dynamic protection in the prior art. Comprising a coil collecting conveying belt, a protection main body, fixing frames, a protection plate, a hydraulic buffer, a sensing assembly, a control system and a blowout prevention device, the protection main body is arranged between the laying head and the coil collecting conveying belt and fixedly connected to the upper portion of the coil collecting conveying belt, and the fixing frames are symmetrically connected to the inner wall of the protection main body; the sensing assembly is connected to the fixed frame; a plurality of protection plates are rotatably connected between the fixed frames, one side of each protection plate is connected with a hydraulic buffer, and the protection main body is further connected with a cyclone separator. The device has the beneficial effects that the angle of the protection plate can be dynamically adjusted, meanwhile, the angle sensor feeds back in real time, and sudden splashing is accurately intercepted.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar production, and specifically to a high-temperature steel bar anti-spatter protection device. Background Art

[0002] A metal coil is a disc-shaped metal material produced by a rolling process. Hot-rolled wire rod is one of the main types of metal coils. Hot-rolled wire rod is hot-rolled steel coils with a diameter of 5 - 38 mm, which are drawn / heat-treated into steel wires and then wound into coils. The material and surface quality of the coils directly affect the coil performance, and are widely used in fields such as building reinforcement, electronic components, and machinery manufacturing.

[0003] The manufacturing process of hot-rolled wire rod takes the main line of billet → wire rod → steel wire → coil: After the billet is heated to above 1100°C and descaled by high-pressure water, it is rolled through multiple passes by rough, medium, and finishing rolling mills, with a speed of up to 120 m / s, and a sorbite structure wire rod is formed through the Stelmor controlled cooling line; the wire rod is pickled and phosphated and then cold-drawn into steel wires of different diameters, with a reduction rate of 60 - 80%. High-carbon steel needs to be quenched and strengthened in a lead bath, and then precisely wound, and made into coils by using single-layer, multi-layer or honeycomb structures and dip painting insulation treatment. Special coils require a vacuum pressure impregnation process, and by controlling the hot-rolled grain size, cold-drawing tension, and winding parameters, the transformation from basic steel to electronic components is achieved.

[0004] Hot-rolled wire rod is mainly produced by a high-speed wire rod rolling mill. The high-speed wire rod rolling mill production line mainly consists of three core systems: rolling, cooling, and coiling; the rolling system includes a rough rolling mill, a medium rolling mill, and a finishing rolling mill, which respectively undertake the preliminary forming, size optimization, and high-precision rolling tasks of the billet; the cooling system removes the surface oxide layer through a high-pressure water descaling device, and controls the cooling speed of the wire rod by using the Stelmor cooling line to optimize the metallographic structure; the coiling system converts the high-speed wire rod into a coil by a laying head, and then collects and bundles the coil through a coiler; the auxiliary system includes a loop stretcher to maintain the rolling tension, a flying shear to handle accidental broken materials, and an automatic control system to coordinate the operation of each device. The whole machine realizes a continuous production process from billet heating to finished product coiling.

[0005] In the high-speed wire rod rolling mill production line, as the core coiling equipment, the laying head winds the hot-rolled wire rod after final rolling into a coil at a speed of 600 - 1200 rpm. When the hot-rolled wire rod vertically drops onto the lower coiling conveyor belt, spatter will be formed due to tension fluctuations / the presence of mill scale on the wire rod surface. The fire accidents caused by these spatters account for 18% of the total accidents in the wire rod factory, and the scalding accidents account for 25%. On average, it is necessary to stop the machine for cleaning 3 - 5 times per shift, and each cleaning takes 15 - 30 minutes, resulting in an annual output loss of about 12,000 - 24,000 tons.

[0006] As described in the existing anti-splash technology, such as an anti-splash mechanism for a numerical control machining equipment disclosed in the patent application number "CN202011299199.4", it includes a mounting base and a box body fixed above the top surface of the mounting base. A rotating door is rotatably connected to the side of the box body, and four inclined plates are fixedly connected to the top surfaces of the box body and the rotating door. The present invention adopts a dual cleaning method of a suction nozzle and an electromagnet to clean the chips at the processing location, effectively preventing chip splashing. However, this physical shielding technology has obvious defects. Long-term exposure to high-temperature environments causes thermal deformation of the baffle, making it unable to intercept sudden splashes. Existing technologies also use fuzzy PID algorithms to control the speed of the finishing mill unit or optimize the spiral angle of the laying head tube to reduce splashing, but this method can only reduce the splashing frequency under normal working conditions.

[0007] All in all, the existing technologies cannot intercept sudden splashes, have a high maintenance cost, insufficient protection reliability, increase production costs, and cannot achieve full-condition dynamic protection.

[0008] Therefore, the present invention proposes a high-temperature steel bar anti-splash protection device to solve the above problems. Summary of the Invention

[0009] The purpose of the present invention is to provide a high-temperature steel bar anti-splash protection device to solve the problems of insufficient protection reliability and inability to achieve full-condition dynamic protection existing in the prior art.

[0010] The technical solution adopted by the present invention to solve its technical problems is:

[0011] A high-temperature steel bar anti-splash protection device includes a coiling conveyor belt, a protection main body, a fixed frame, a protection plate, a hydraulic buffer, an induction component, a control system, and an anti-spray device. The protection main body is arranged between the laying head and the coiling conveyor belt, and the protection main body is fixedly connected above the coiling conveyor belt. The protection main body is made of a ceramic matrix composite material; the fixed frame is symmetrically connected to the inner wall of the protection main body, and the induction component is connected to the fixed frame; a protection plate is rotatably connected between the fixed frames. There are multiple protection plates, and the multiple protection plates are parallel to each other and arranged at intervals. The material of the protection plate is a ceramic matrix composite material, and the distance between adjacent ceramic matrix composites is 50 - 100 mm. A linkage mechanism is arranged between the multiple protection plates; one side of the protection plate is connected to a hydraulic buffer, and the hydraulic buffer is arranged between the fixed frame and the protection plate. The control system is electrically connected to the induction component and the hydraulic buffer; a cyclone separator is also connected to the protection main body.

[0012] By adopting the above technical solution, it is possible to monitor the movement trajectory of the splashed objects in real time through the induction component. When an abnormality is detected, the linkage mechanism adjusts the angle of the protection plate in real time to accurately intercept sudden splashes.

[0013] Furthermore, the air inlet pipe of the cyclone separator is connected to the top of the protection main body, the slag discharge port of the cyclone separator is connected to the protection main body, a slag cleaning box is slidably connected to the protection main body corresponding to the slag discharge port, a sealing rubber strip is connected to the edge of the slag cleaning box, and a handle is arranged at the end of the slag cleaning box.

[0014] By adopting the above technical solution, high-temperature splashes can be separated from the waste gas, and the slag cleaning box can be slid out for cleaning, reducing the shutdown frequency.

[0015] Furthermore, a gas purification component is connected to the air outlet pipe of the cyclone separator through a clamp. The gas purification component includes a main body. An activated carbon package is arranged in the main body. A plurality of air inlets and air outlets are respectively opened at both ends of the main body, and the air inlets and the air outlets are arranged staggeredly.

[0016] By adopting the above technical solution, the activated carbon package can adsorb residual harmful substances in the waste gas, improving the air quality in the workshop. The staggered design of the air inlets and the air outlets can enhance the adsorption effect.

[0017] Furthermore, the control system includes a central processing unit, a data storage module and an alarm module. The central processing unit is electrically connected to the induction component and the hydraulic buffer respectively. The alarm module is used to issue an alarm when an abnormal situation is detected.

[0018] By adopting the above technical solution, an over-temperature or abnormal signal triggers the alarm module for timely adjustment and processing.

[0019] Furthermore, the induction component includes a plurality of infrared sensors and temperature sensors. The infrared sensors are arranged at the inner upper end of the fixed frame, the temperature sensors are arranged on the hydraulic buffer, and both the infrared sensors and the temperature sensors are electrically connected to the control system.

[0020] By adopting the above technical solution, the sensor data can be processed in real time, and the parameters of the hydraulic buffer and the cooling system can be automatically adjusted, reducing manual intervention.

[0021] Furthermore, the protection plate is connected to the fixed frame through a rotating shaft. An angle sensor is connected to the rotating shaft, and the angle sensor is electrically connected to the control system; the linkage mechanism includes a linkage rod and a gear set. The gear set is arranged at the end of the rotating shaft. The linkage rod is meshed with the gear set. The first driving cylinder drives the linkage rod to move, and the first driving cylinder is fixedly connected to the protection main body.

[0022] Furthermore, an elastic buffer block is provided between the piston rod of the first driving cylinder and the linkage rod. The elastic buffer block is made of silica gel and has a honeycomb buffer structure inside. The elastic buffer block is connected to the protection plate through a high-temperature resistant adhesive.

[0023] By adopting the above technical solution, the elastic buffer block can absorb the impact energy of the splashing on the piston rod of the cylinder and avoid rigid collision.

[0024] Furthermore, both ends of the hydraulic buffer are respectively hinged to the fixed frame and the protection plate, and the hydraulic buffer is filled with high-temperature resistant hydraulic oil.

[0025] By adopting the above technical solution, it can provide damping buffer and avoid rigid collision.

[0026] Furthermore, a cooling device is provided inside the fixed frame. The cooling device includes a circulating coolant pipeline and heat dissipation fins. The circulating coolant pipeline is arranged inside the fixed frame, and the heat dissipation fins are arranged on the surface of the fixed frame. The circulating coolant pipeline is connected to an external coolant circulation system, and the coolant circulation system is electrically connected to the control system.

[0027] By adopting the above technical solution, it can take away the high-temperature radiant heat in real time, reduce the working temperature of the hydraulic buffer and the protection plate by 40%-60%, and extend the service life of the equipment by more than 30%. The circulating coolant pipeline can dynamically adjust the coolant flow according to the data of the temperature sensor, and the heat dissipation fins strengthen the heat exchange.

[0028] Furthermore, a wear-resistant coating is provided on the surface of the protection plate. The thickness of the wear-resistant coating is 0.5-1 mm, and the material of the wear-resistant coating is tungsten carbide alloy.

[0029] By adopting the above technical solution, it can maintain structural stability in a high-temperature environment above 1200°C and avoid the problem of the baffle failing due to thermal deformation.

[0030] In summary, compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. The present invention can monitor the movement trajectory of splashing objects in real time through an infrared sensor. When an abnormality is detected, the first driving cylinder of the linkage mechanism pushes the linkage rod, and the angle of the protection plate is dynamically adjusted through a gear set. At the same time, the angle sensor feeds back in real time to achieve precise interception of sudden splashing. The hydraulic buffer uses high-temperature resistant hydraulic oil, combined with a ceramic matrix composite protection plate with a tungsten carbide coating on the surface, which can maintain structural stability in a high-temperature environment above 1200°C and avoid the problem of the baffle failing due to thermal deformation.

[0032] 2. The cyclone separator of the present invention can separate high-temperature splashes from exhaust gas. The slag cleaning box can be slid out for cleaning, reducing the shutdown frequency. The exhaust gas is purified by activated carbon and then discharged, reducing the fire risk.

[0033] 3. The fixed frame of the present invention is internally provided with a circulating coolant pipeline and heat dissipation fins, which can continuously remove high-temperature radiant heat in real time, reducing the working temperature of the hydraulic buffer and the protective plate by 40%-60% and extending the service life of the equipment by more than 30%. The temperature sensor monitors the state of the hydraulic buffer in real time. When the temperature exceeds the limit, the cooling system is automatically started and an alarm is issued, avoiding failures caused by overheating of the equipment and reducing the loss of unplanned shutdowns. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0035] Figure 2 is the front view of the present invention;

[0036] Figure 3 is the top view of the present invention;

[0037] Figure 4 is a partial sectional view of the front view of the present invention Figure 1 ;

[0038] Figure 5 is a partial sectional view of the front view of the present invention Figure 2 ;

[0039] In the figure: 1, coiling conveyor belt; 2, protective main body; 3, fixed frame; 4, protective plate; 5, hydraulic buffer; 6, infrared sensor; 7, temperature sensor; 8, control system; 9, cyclone separator; 10, air inlet pipe; 11, air outlet pipe; 12, slag outlet; 13, slag cleaning box; 14, main body; 15, activated carbon packet; 16, air intake; 17, air outlet; 18, linkage rod; 19, gear set; 20, rotating shaft; 21, angle sensor; 22, first driving cylinder; 23, elastic buffer block; 24, circulating coolant pipeline; 25, heat dissipation fins. DETAILED DESCRIPTION OF THE INVENTION

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] In this application, the orientation or positional relationship indicated by terms such as "upper", "inner", "outer", "middle", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0042] As Figures 1-5 shown, a high-temperature steel bar anti-spatter protection device includes a coiling conveyor belt 1, a protection main body 2, a fixed frame 3, a protection plate 4, a hydraulic buffer 5, an induction component, a control system 8 and an anti-spray device. The protection main body 2 is arranged between the spinning machine and the coiling conveyor belt 1. The protection main body 2 is fixedly connected above the coiling conveyor belt 1. The protection main body 2 is a ceramic matrix composite material; the fixed frame 3 is symmetrically connected to the inner wall of the protection main body 2, and an induction component is connected to the fixed frame 3; a protection plate 4 is rotatably connected between the fixed frames 3. There are multiple protection plates 4, and the multiple protection plates 4 are parallel to each other and arranged at intervals. The material of the protection plate 4 is a ceramic matrix composite material. The distance between adjacent ceramic matrix composites is 50-100 mm. A linkage mechanism is arranged between the multiple protection plates 4; a wear-resistant coating is arranged on the surface of the protection plate 4, and the thickness of the wear-resistant coating is 0.5-1 mm. The material of the wear-resistant coating is tungsten carbide alloy. One side of the protection plate 4 is connected with a hydraulic buffer 5. The hydraulic buffer 5 is arranged between the fixed frame 3 and the protection plate 4. The two ends of the hydraulic buffer 5 are respectively hinged to the fixed frame 3 and the protection plate 4. The hydraulic buffer 5 is filled with high-temperature resistant hydraulic oil. The control system 8 is electrically connected to the induction component and the hydraulic buffer 5; a cyclone separator 9 is also connected to the protection main body 2.

[0043] Further, the air inlet pipe 10 of the cyclone separator 9 is communicated with the top of the protection main body 2, the slag discharge port 12 of the cyclone separator 9 is communicated with the protection main body 2, and a slag cleaning box 13 is slidably connected to the protection main body 2 corresponding to the slag discharge port 12. A sealing rubber strip is connected to the edge of the slag cleaning box 13, and a handle is arranged at the end of the slag cleaning box 13. A gas purification component is connected to the air outlet pipe 11 of the cyclone separator 9 through a clamp. The gas purification component includes a main body 14. An activated carbon packet 15 is arranged in the main body 14. A plurality of air inlets 16 and air outlets 17 are respectively arranged at both ends of the main body 14, and the air inlets 16 and the air outlets 17 are arranged in a staggered manner.

[0044] Further, the control system 8 includes a central processor, a data storage module and an alarm module. The central processor is electrically connected to the induction component and the hydraulic buffer 5 respectively. The alarm module is used to issue an alarm when an abnormal situation is detected. The induction component includes a plurality of infrared sensors 6 and temperature sensors 7. The infrared sensors 6 are arranged at the upper end inside the fixed frame 3, and the temperature sensors 7 are arranged on the hydraulic buffer 5. The infrared sensors 6 and the temperature sensors 7 are both electrically connected to the control system 8.

[0045] Further, the protective plate 4 is connected to the fixed frame 3 through a rotating shaft 20. An angle sensor 21 is connected to the rotating shaft 20, and the angle sensor 21 is electrically connected to the control system 8. The linkage mechanism includes a linkage rod 18 and a gear set 19. The gear set 19 is arranged at the end of the rotating shaft 20. The linkage rod 18 meshes with the gear set 19. The first driving cylinder 22 drives the movement of the linkage rod 18, and the first driving cylinder 22 is fixedly connected to the protective body 2. An elastic buffer block 23 is arranged between the piston rod of the first driving cylinder 22 and the linkage rod 18. The elastic buffer block 23 is made of silica gel and has a honeycomb buffer structure inside. The elastic buffer block 23 is connected to the protective plate 4 through a high-temperature resistant adhesive.

[0046] Further, a cooling device is arranged inside the fixed frame 3. The cooling device includes a circulating coolant pipeline 24 and heat dissipation fins 25. The circulating coolant pipeline 24 is arranged inside the fixed frame 3, and the heat dissipation fins 25 are arranged on the surface of the fixed frame 3. The circulating coolant pipeline 24 is connected to an external coolant circulation system, and the coolant circulation system is electrically connected to the control system 8.

[0047] The working process of the present invention is as follows:

[0048] First, the control system 8 is started to initialize the parameters of each component. The angle sensor 21 monitors the angle of the protective plate 4 in real time. Then, the coolant circulation system starts to work, pre-cooling the device through the circulating pipeline inside the fixed frame 3. Then, the cyclone separator 9 is started to establish an air flow circulation, and the gas purification component is synchronously turned on.

[0049] When the wire drawing machine spits out high-temperature steel bars, the protective body 2 forms the first barrier. The infrared sensor 6 monitors the trajectory of the flying objects in real time, and the temperature sensor 7 monitors the oil temperature of the hydraulic buffer 5. When it detects that it is greater than the set threshold or high-speed flying objects: a. The control system 8 triggers the hydraulic buffer 5 to act, providing damping buffer through high-temperature resistant hydraulic oil; b. The first driving cylinder 22 of the linkage mechanism pushes the linkage rod 18, driving the protective plate 4 to rotate and adjust the angle synchronously through the gear set 19, and the angle sensor 21 feeds back to the control system 8; c. The elastic buffer block 23 absorbs the impact energy of the cylinder piston rod to avoid rigid collision.

[0050] When the temperature sensor 7 detects that the hydraulic oil is overheated or the infrared sensor 6 triggers an alarm: a. Increase the coolant circulation flow; b. The first driving cylinder 22 of the linkage mechanism pushes the linkage rod 18, driving the protective plate 4 to rotate and adjust the angle synchronously through the gear set 19; c. The alarm module issues an audible and visual alarm and records the abnormal data.

[0051] Among them, the tungsten carbide alloy coating on the surface of the protective plate 4 resists high-frequency impact wear; adjacent protective plates 4 are kept at a distance of 50 - 100 mm to form a multi-stage protection barrier; the cooling device in the fixed frame 3 dynamically adjusts the coolant flow according to the data of the temperature sensor 7, and the heat dissipation fins 25 strengthen heat exchange. The cyclone separator 9 extracts the high-temperature flue gas in the protection main body 2 through the top air inlet pipe 10. After centrifugal separation, the metal slag particles enter the slag cleaning box 13 through the slag discharge port 12. The slag cleaning box 13 can be pulled out through the handle, and the sealing rubber strip ensures airtightness. The purified gas is filtered and discharged through the activated carbon packet 15, and the air inlet 16 and the air outlet 17 are stagger-designed to enhance the adsorption effect.

Claims

1. A high-temperature steel bar anti-spatter protection device, comprising a coiling conveyor belt (1), a protection main body (2), a fixed frame (3), a protection plate (4), a hydraulic buffer (5), an induction component, a control system (8) and an anti-spray device, characterized in that, The protection main body (2) is arranged between the spinning machine and the coiling conveyor belt (1). The protection main body (2) is fixedly connected above the coiling conveyor belt (1), and the protection main body (2) is made of ceramic matrix composite material. The fixing frames (3) are symmetrically connected to the inner wall of the protection main body (2), and the induction assembly is connected to the fixing frames (3). A protection plate (4) is rotatably connected between the fixing frames (3). There are multiple protection plates (4), and the multiple protection plates (4) are parallel to each other and arranged at intervals. The material of the protection plate (4) is ceramic matrix composite material, and the distance between adjacent ceramic matrix composites is 50 - 100 mm. A linkage mechanism is arranged between the multiple protection plates (4). One side of the protection plate (4) is connected with a hydraulic buffer (5), and the hydraulic buffer (5) is arranged between the fixing frame (3) and the protection plate (4). The control system (8) is electrically connected to the induction assembly and the hydraulic buffer (5). A cyclone separator (9) is also connected to the protection main body (2).

2. The high-temperature steel bar anti-spatter protection device according to claim 1, characterized in that, The air inlet pipe (10) of the cyclone separator (9) is communicated with the top of the protection main body (2), and the slag discharge port (12) of the cyclone separator (9) is communicated with the protection main body (2). A slag cleaning box (13) is slidably connected to the protection main body (2) corresponding to the slag discharge port (12). A sealing rubber strip is connected to the edge of the slag cleaning box (13), and a handle is arranged at the end of the slag cleaning box (13).

3. The high-temperature steel bar anti-spatter protection device according to claim 2, wherein, A gas purification assembly is connected to the air outlet pipe (11) of the cyclone separator (9) through a clamp. The gas purification assembly includes a main body (14). An activated carbon package (15) is arranged in the main body (14). A plurality of air inlets (16) and air outlets (17) are respectively arranged at both ends of the main body (14), and the air inlets (16) and the air outlets (17) are arranged in a staggered manner.

4. A high-temperature steel bar anti-spatter protection device according to claim 1, characterized in that, The control system (8) includes a central processor, a data storage module and an alarm module. The central processor is electrically connected to the induction assembly and the hydraulic buffer (5) respectively, and the alarm module is used to give an alarm when an abnormal situation is detected.

5. The high-temperature steel bar anti-spatter protection device according to claim 4, characterized in that, The induction assembly includes a plurality of infrared sensors (6) and temperature sensors (7). The infrared sensors (6) are arranged at the upper end inside the fixing frame (3), and the temperature sensors (7) are arranged on the hydraulic buffer (5). The infrared sensors (6) and the temperature sensors (7) are both electrically connected to the control system (8).

6. The high-temperature steel bar anti-spatter protection device according to claim 5, characterized in that, The protective plate (4) is connected to the fixed frame (3) through a rotating shaft (20), and an angle sensor (21) is connected to the rotating shaft (20). The angle sensor (21) is electrically connected to the control system (8); the linkage mechanism includes a linkage rod (18) and a gear set (19). The gear set (19) is arranged at the end of the rotating shaft (20). The linkage rod (18) meshes with the gear set (19). A first driving cylinder (22) drives the movement of the linkage rod (18), and the first driving cylinder (22) is fixedly connected to the protection body (2).

7. The high-temperature steel bar anti-spatter protection device according to claim 6, characterized in that, An elastic buffer block (23) is arranged between the piston rod of the first driving cylinder (22) and the linkage rod (18). The elastic buffer block (23) is made of silica gel and is internally provided with a honeycomb buffer structure. The elastic buffer block (23) is connected to the protective plate (4) through a high-temperature resistant adhesive.

8. The high-temperature steel bar anti-splash protection device according to claim 1, characterized in that, Both ends of the hydraulic buffer (5) are respectively hinged to the fixed frame (3) and the protective plate (4), and the hydraulic buffer (5) is filled with high-temperature resistant hydraulic oil.

9. The high-temperature steel bar anti-spatter protection device according to claim 1, characterized in that, A cooling device is arranged inside the fixed frame (3). The cooling device includes a circulating coolant pipeline (24) and heat dissipation fins (25). The circulating coolant pipeline (24) is arranged inside the fixed frame (3), and the heat dissipation fins (25) are arranged on the surface of the fixed frame (3). The circulating coolant pipeline (24) is connected to an external coolant circulation system, and the coolant circulation system is electrically connected to the control system (8).

10. A high-temperature steel bar anti-splash protection device according to claim 1, characterized in that, A wear-resistant coating is arranged on the surface of the protective plate (4). The thickness of the wear-resistant coating is 0.5 - 1 mm, and the material of the wear-resistant coating is tungsten carbide alloy.

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