Steel blocking device suitable for tundish nozzle side hole tapping

Abstract

A steel blocking device suitable for tundish nozzle side hole tapping comprises a lifting part, a semicircular plate and a steel blocking part. The lifting part is arranged on the ground, and the semicircular plate is arranged on the lifting part; the number of the steel blocking parts is two, and the steel blocking parts are symmetrically arranged at the two ends of the semicircular plate. According to the utility model, molten steel discharged from the collector nozzle of the tundish is effectively blocked, and is prevented from splashing everywhere.

Description

Technical Field

[0001] The utility model relates to a steel baffle device, in particular to a steel baffle device capable of guiding molten steel discharged from side holes at the bottom end of a tundish nozzle to be discharged downward instead of splashing around, belonging to the technical field of tundish nozzle steel baffle equipment. Background Art

[0002] During the continuous casting production process, molten steel is poured from a ladle into a tundish, and then is diverted from the tundish to a mold. The molten steel enters the mold through the tundish nozzle and solidifies into a shape. In slab continuous casting, the lower nozzle of the tundish mostly adopts a design of discharging molten steel flow from side holes on both wide sides. During the process of starting casting and sprouting seedlings, since the side holes of the lower nozzle are not immersed in the molten steel, the molten steel flow irregularly flows into the mold from the side holes of the nozzle. To prevent the molten steel from splashing and hanging on the upper opening of the mold and causing accidents, in actual production, a steel plate is used to block the irregular splashing of the molten steel flow above the side holes of the nozzle to prevent the molten steel from hanging on the upper opening of the mold. Since the operator cannot master the splashing direction of the molten steel flow during the steel baffle process and cannot timely adjust the position of the steel baffle plate, the effect of manual steel baffle is poor, and the operator is in close contact with the high-temperature splashing molten steel, resulting in a low operation safety factor. Therefore, a steel baffle device is needed, which is required to effectively control the splashing direction of the molten steel at the tundish nozzle. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a steel baffle device suitable for discharging molten steel from side holes of a tundish nozzle, which can effectively control the splashing direction of the molten steel flow.

[0004] The problems of the utility model are solved by the following technical solutions:

[0005] A steel baffle device suitable for discharging molten steel from side holes of a tundish nozzle includes a lifting part, a semi-circular plate and a steel baffle part; the lifting part is arranged on the ground, and the semi-circular plate is arranged on the lifting part; the number of the steel baffle parts is two, and they are symmetrically arranged at both ends of the semi-circular plate; the lifting part includes a base, an electric cylinder, a lifting plate and a horizontal plate; walking wheels are arranged at the four corners of the lower end face of the base; a vertical groove is arranged on the side wall of the base, and the lifting plate is slidably arranged in the vertical groove on the side wall of the base; the electric cylinder is arranged on the bottom end face of the base, and the end of its piston rod is connected to the top end of the lifting plate; a horizontal plate is arranged at the bottom end of the lifting plate, and one end of the horizontal plate far away from the lifting plate is connected to the center of the semi-circular plate.

[0006] For the above-mentioned steel baffle device suitable for discharging molten steel from side holes of a tundish nozzle, the axis line of the semi-circular plate is a vertical line; the inner diameter of the semi-circular plate is larger than the maximum outer diameter of the tundish nozzle.

[0007] The above-mentioned steel stopping device applicable to the steel tapping from the side hole of the tundish nozzle, the steel stopping part includes a transverse movement mechanism, an inclination adjustment mechanism and a steel stopping mechanism; the transverse movement mechanism is arranged on the semi-circular plate; the inclination adjustment mechanism is arranged on the transverse movement mechanism; the steel stopping mechanism is arranged on the inclination adjustment mechanism.

[0008] The above-mentioned steel stopping device applicable to the steel tapping from the side hole of the tundish nozzle, the transverse movement mechanism includes a fixed block and a sliding bar; the fixed block is arranged at one end of the lower end surface of the semi-circular plate, and a sliding groove is arranged on the bottom end surface of the fixed block. A sliding rail is arranged on the top end surface of the sliding bar, and the sliding groove at the bottom end of the fixed block is in sliding fit connection with the sliding rail on the top end surface of the sliding bar; a vertical threaded hole is arranged on the fixed block, and a bolt passes through the threaded hole of the fixed block and presses against the top end surface of the sliding bar.

[0009] The above-mentioned steel stopping device applicable to the steel tapping from the side hole of the tundish nozzle, the inclination adjustment mechanism includes a vertical rod, a lifting rod, a slider and a flap; the top end of the vertical rod is arranged on the bottom end surface of the sliding bar; a vertical hole is arranged at the end of the sliding bar, and the lifting rod passes through the vertical hole at the end of the sliding bar. A threaded hole is arranged on the side wall of the sliding bar, and a bolt passes through the threaded hole on the side wall of the sliding bar and presses against the side wall of the lifting rod; a sliding rail is arranged on the top end surface of the flap, and the slider is slidably arranged on the sliding rail of the flap; a first hinge seat is arranged at one end of the upper end surface of the flap, and a second hinge seat is arranged on the slider; the bottom end of the vertical rod and the first hinge seat form a hinge fit connection mechanism, and the bottom end of the lifting rod and the second hinge seat form a hinge fit connection mechanism.

[0010] The above-mentioned steel stopping device applicable to the steel tapping from the side hole of the tundish nozzle, the steel stopping mechanism includes a steel stopping plate; threaded holes are arranged at both ends of the flap, and internal threaded blind holes are arranged at both ends of the top end surface of the steel stopping plate, and bolts pass through the threaded holes of the flap and the internal threaded blind holes of the steel stopping plate at the same time.

[0011] The utility model drives the steel stopping part to move to a suitable height through the lifting part, thereby facilitating the guiding of the steel tapping from the nozzle and preventing the molten steel from splashing everywhere; the cooperation of the transverse movement mechanism and the inclination adjustment mechanism enables the steel stopping mechanism to block the molten steel discharged from the nozzle at a suitable position and angle, ensuring that it can move downward smoothly and preventing splashing. Brief Description of the Drawings

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a partial enlarged structural schematic diagram of A of the utility model.

[0014] The list of each label in the figure is as follows: 1. semi-circular plate, 2. base, 3. electric cylinder, 4. lifting plate, 5. horizontal plate, 6. fixing block, 7. sliding bar, 8. vertical rod, 9. lifting rod, 10. slider, 11. turning plate, 12. steel baffle plate. Detailed implementation mode

[0015] Refer to Figure 1 and Figure 2 , the utility model includes a lifting part, a semi-circular plate 1 and a steel baffle part; the lifting part is used to adjust the height of the semi-circular plate 1, so that it can drain the molten steel discharged from the nozzle at an appropriate height; the lifting part is arranged on the ground, and the semi-circular plate 1 is arranged on the lifting part; the number of the steel baffle parts is two, and they are symmetrically arranged at both ends of the semi-circular plate 1; the steel baffle parts on both sides correspond to the positions of the steel discharge ports on both sides of the nozzle.

[0016] The lifting part includes a base 2, an electric cylinder 3, a lifting plate 4 and a horizontal plate 5; walking wheels are arranged at the four corners of the lower end surface of the base 2; through the walking wheels, the device can walk; a vertical groove is arranged on the side wall of the base 2, and the lifting plate 4 is slidably arranged in the vertical groove on the side wall of the base 2; the groove on the side wall of the base 2 provides a guiding function for the vertical lifting of the lifting plate 4; the electric cylinder 3 is arranged on the bottom end surface of the base 2, and the end of its piston rod is connected to the top end of the lifting plate 4; the electric cylinder 3 drives the lifting plate 4 to lift and lower through the telescopic movement of the piston rod, and then drives the horizontal plate 5 at the bottom end of the lifting plate 4 to lift and lower synchronously. The lifting and lowering of the horizontal plate 5 drives the semi-circular plate 1 to lift and lower synchronously; a horizontal plate 5 is arranged at the bottom end of the lifting plate 4, and one end of the horizontal plate 5 away from the lifting plate 4 is connected to the center of the semi-circular plate 1.

[0017] The axis line of the semi-circular plate 1 is a vertical line; the inner diameter of the semi-circular plate 1 is larger than the maximum outer diameter of the tundish nozzle.

[0018] The steel baffle part includes a transverse movement mechanism, an inclination adjustment mechanism and a steel baffle mechanism; the transverse movement mechanism is arranged on the semi-circular plate 1; the transverse movement mechanism can adjust the distance between the two steel baffle plates 12 on both sides, so that it can maintain an appropriate distance from the steel discharge ports on both sides of the nozzle; the inclination adjustment mechanism can adjust the inclination angle of the steel baffle plate 12, so as to make an adaptive adjustment for different steel discharge amounts; the inclination adjustment mechanism is arranged on the transverse movement mechanism; the steel baffle mechanism is arranged on the inclination adjustment mechanism; the steel baffle mechanism is used to directly contact the molten steel to prevent it from splashing everywhere.

[0019] The transverse movement mechanism includes a fixed block 6 and a slide bar 7; the fixed block 6 is arranged at one end of the lower end surface of the semicircular plate 1, and the bottom end surface of the fixed block 6 is provided with a slide groove, the top surface of the slide bar 7 is provided with a slide rail, and the slide groove at the bottom end of the fixed block 6 is slidably matched with the slide rail on the top surface of the slide bar 7; through the sliding fit between the fixed block 6 and the slide bar 7, the slide bar 7 can adjust the distance between it and the water outlet, and thus adjust the distance between the baffle plate 12 and the water outlet; a vertical threaded hole is provided on the fixed block 6, and the bolt passes through the threaded hole of the fixed block 6 and presses on the top surface of the slide bar 7; tightening the bolt on the fixed block 6 can fix the relative position between the slide bar 7 and the fixed block 6 to prevent the slide bar 7 from sliding.

[0020] The tilt adjustment mechanism includes a vertical rod 8, a lifting rod 9, a slider 10 and a flip plate 11; the top end of the vertical rod 8 is arranged on the bottom end surface of the slide bar 7; the end of the slide bar 7 is provided with a vertical hole, and the lifting rod 9 passes through the vertical hole at the end of the slide bar 7, and a threaded hole is provided on the side wall of the slide bar 7, and the bolt passes through the threaded hole on the side wall of the slide bar 7 and presses on the side wall of the lifting rod 9; tightening the bolts on the side wall of the slide bar 7 can fix the position of the lifting rod 9; the top surface of the flip plate 11 is provided with a slide rail, and the slider 10 is slidably arranged on the slide rail of the flip plate 11; one end of the upper end surface of the flip plate 11 is provided with a first hinge seat, and a second hinge seat is provided on the slider 10; the bottom end of the vertical rod 8 and the first hinge seat constitute an articulated matching connection mechanism, and the bottom end of the lifting rod 9 and the second hinge seat constitute an articulated matching connection mechanism; the inclination angle of the flip plate 11 can be adjusted by adjusting the vertical position of the lifting rod 9, thereby adapting to different steel output conditions and making flexible adjustments according to on-site conditions.

[0021] The steel retaining mechanism includes a steel retaining plate 12; threaded holes are provided at both ends of the flap 11, and internal threaded blind holes are provided at both ends of the top surface of the steel retaining plate 12, and the bolts pass through the threaded holes of the flap 11 and the internal threaded blind holes of the steel retaining plate 12 at the same time; when the steel retaining plate 12 needs to be replaced, unscrew the two bolts on the flap 11, and then replace the steel retaining plate 12, and screw back the bolts to complete the replacement operation of the steel retaining plate 12.

[0022] Principle of use: When steel is being discharged from the tundish outlet and the bottom of the outlet is not immersed in the molten steel, the two steel retaining parts of the device are inserted into the crystallizer, and then the electric cylinder 3 is adjusted so that the steel retaining plates 12 on both sides are at the same height as the steel outlets on both sides of the outlet, and then steel is discharged. During the steel discharge process, the position of the slide bars 7 on both sides and the height of the lifting rod 9 are adjusted to adjust the inclination angle of the steel retaining plates 12. The position and inclination angle of the steel retaining plates 12 on both sides are adjusted through dynamic adjustment, so that the molten steel discharged from the steel outlets on both sides of the outlet can be effectively blocked to prevent the molten steel from splashing everywhere. When the molten steel is about to submerge the outlet, the device is removed, and the steel retaining operation of the device is completed.

Claims

1. A steel retaining device suitable for tapping steel from the side hole of a tundish nozzle, characterized by: It includes a lifting part, a semi-circular plate (1) and a steel blocking part; the lifting part is arranged on the ground, and the semi-circular plate (1) is arranged on the lifting part; the number of the steel blocking parts is two, and they are symmetrically arranged at both ends of the semi-circular plate (1); the lifting part includes a base (2), an electric cylinder (3), a lifting plate (4) and a horizontal plate (5); walking wheels are arranged at the four corners of the lower end surface of the base (2); a vertical groove is arranged on the side wall of the base (2), and the lifting plate (4) is slidably arranged in the vertical groove on the side wall of the base (2); the electric cylinder (3) is arranged at the bottom end surface of the base (2), and the end of its piston rod is connected to the top end of the lifting plate (4); a horizontal plate (5) is arranged at the bottom end of the lifting plate (4), and one end of the horizontal plate (5) far from the lifting plate (4) is connected to the center of the semi-circular plate (1).

2. The steel blocking device applicable to tapping from the side holes of the tundish nozzle according to claim 1, characterized in that: The axis line of the semi-circular plate (1) is a vertical line; the inner diameter of the semi-circular plate (1) is larger than the maximum outer diameter of the tundish nozzle.

3. The steel retaining device suitable for tapping steel from the side hole of the tundish nozzle according to claim 2, characterized in that: The steel blocking part includes a transverse movement mechanism, an inclination adjustment mechanism and a steel blocking mechanism; the transverse movement mechanism is arranged on the semi-circular plate (1); the inclination adjustment mechanism is arranged on the transverse movement mechanism; the steel blocking mechanism is arranged on the inclination adjustment mechanism.

4. The steel retaining device suitable for tapping steel from the side hole of the tundish nozzle according to claim 3, characterized in that: The transverse movement mechanism includes a fixed block (6) and a slide bar (7); the fixed block (6) is arranged at one end of the lower end surface of the semi-circular plate (1), a chute is arranged on the bottom end surface of the fixed block (6), a slide rail is arranged on the top end surface of the slide bar (7), and the chute at the bottom end of the fixed block (6) is slidably connected with the slide rail on the top end surface of the slide bar (7) in a matching manner; a vertical threaded hole is arranged on the fixed block (6), and a bolt passes through the threaded hole of the fixed block (6) and presses against the top end surface of the slide bar (7).

5. The steel stopping device applicable to tapping from the side holes of the tundish nozzle according to claim 4, characterized in that: The inclination adjustment mechanism includes a vertical rod (8), a lifting rod (9), a slider (10) and a turning plate (11); the top end of the vertical rod (8) is arranged on the bottom end surface of the slide bar (7); a vertical hole is arranged at the end of the slide bar (7), and the lifting rod (9) passes through the vertical hole at the end of the slide bar (7), a threaded hole is arranged on the side wall of the slide bar (7), and a bolt passes through the threaded hole on the side wall of the slide bar (7) and presses against the side wall of the lifting rod (9); a slide rail is arranged on the top end surface of the turning plate (11), and the slider (10) is slidably arranged on the slide rail of the turning plate (11); a first hinge seat is arranged at one end of the upper end surface of the turning plate (11), and a second hinge seat is arranged on the slider (10); the bottom end of the vertical rod (8) and the first hinge seat form a hinged connection mechanism, and the bottom end of the lifting rod (9) and the second hinge seat form a hinged connection mechanism.

6. The steel stopping device applicable to tapping from the side holes of the tundish nozzle according to claim 5, characterized in that: The steel blocking mechanism includes a steel blocking plate (12); threaded holes are arranged at both ends of the turning plate (11), internal thread blind holes are arranged at both ends of the top end surface of the steel blocking plate (12), and bolts pass through the threaded holes of the turning plate (11) and the internal thread blind holes of the steel blocking plate (12) at the same time.

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