Slag blocking mechanism for converter tapping hole

Abstract

This utility model discloses a slag-blocking mechanism at the tapping spout of a converter, including a slag-blocking ball, a converter, an outlet, and a moving trolley. A recess is provided at the connection point between the outlet and the converter, protruding from the converter sidewall. The mechanism also includes: a protective plate for shielding against splashes; a crossbeam connected to the protective plate at a 90-degree angle; a distal rod connected to the slag-blocking ball, which can move close to the bottom of the converter, with the distal rod moving up and down according to the height of the slag-blocking ball; and a proximal rod that moves up and down synchronously with the distal rod. The slag-blocking ball sinks into the recess as it moves from the converter sidewall. The beneficial effects of this utility model are that by setting the protective plate to be enclosed, personnel are isolated from the converter, greatly preventing slag from splashing onto personnel. The vertical displacement of the slag-blocking ball as it moves from the converter to the recess allows for determination of successful slag blocking. Repeating the above operation effectively improves the accuracy of slag blocking.

Description

Technical Field

[0001] This utility model relates to the field of converter steelmaking technology, and more specifically, to a slag-blocking mechanism at the converter tapping port. Background Technology

[0002] Converters are common large-scale equipment used in steelmaking. During steelmaking, a large amount of steel slag is produced, so slag-blocking balls are needed for slag blocking operations. Currently, slag-blocking vehicles are basically placed by personnel visually, and there is no obstruction between the person's eyes and the converter. As a result, the steel slag splashing inside the converter can easily injure people. If a highly protective slag-blocking mechanism can be designed, it can effectively reduce the harm of steel slag to the human body. Utility Model Content

[0003] To address the above deficiencies, this utility model provides a slag-blocking mechanism at the converter tapping outlet, thus solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The slag-blocking mechanism at the converter tapping outlet includes a slag-blocking ball, a converter, an outlet, and a moving vehicle. A recess is provided at the connection point between the outlet and the converter. The recess protrudes from the side wall of the converter. The slag-blocking ball being located within the recess indicates successful slag blocking. The mechanism also includes: Protective panels are used to shield against splashes; The crossbeam is connected to the protective panel at a 90-degree angle; The distal rod is connected to the slag-blocking ball, which can move close to the bottom of the converter, and the distal rod moves up and down with the height of the slag-blocking ball; Furthermore, the near-end rod moves up and down synchronously with the far-end rod; the slag-blocking ball moves from the converter sidewall into the depression and sinks, indirectly causing the far-end rod and the near-end rod to move down.

[0005] Furthermore, the slag-blocking ball is connected to the distal rod via a rope, and a sliding hole is provided at one end of the crossbeam, with the distal rod slidably connected to the sliding hole.

[0006] Furthermore, one end of the crossbeam is equipped with a guide wheel, and the other end of the crossbeam is equipped with a guide wheel. A hydraulic rod is installed on the upper end of the moving vehicle. The proximal rod is installed on the telescopic end of the hydraulic rod. A steel wire rope is installed between the proximal rod and the distal rod. The steel wire rope passes around the guide wheel and the guide wheel in a Z-shape.

[0007] Furthermore, the side wall of the mobile vehicle is equipped with a scale, and a pointer is located on the side of the near-end rod.

[0008] Furthermore, the crossbeam and the protective plate are hinged, and a hydraulic cylinder is installed between the crossbeam and the protective plate.

[0009] The beneficial effects of this utility model are: by setting the protective plate to be closed, the personnel are isolated from the converter, which greatly avoids slag splashing onto the personnel. When the slag-blocking ball moves from the converter to the recessed position, it will move up and down, which can determine whether the slag blocking is successful. Repeating the above operation can effectively improve the accuracy of slag blocking. The extension and retraction of the hydraulic rod can effectively move the slag-blocking ball in the vertical direction, making it easy to determine whether the slag-blocking ball has moved into the depression. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the slag-blocking mechanism at the converter tapping port of the present invention. Figure 2 This is an enlarged schematic diagram of guide wheel one; Figure 3 This is a schematic diagram of a hydraulic cylinder; In the diagram, 1. Slag-blocking ball; 2. Converter; 3. Outlet; 4. Moving vehicle; 5. Recess; 6. Protective plate; 7. Crossbeam; 8. Far end rod; 9. Near end rod; 71. Sliding hole; 72. Guide wheel one; 73. Guide wheel two; 74. Hydraulic rod; 75. Wire rope; 41. Scale; 42. Pointer; 61. Hydraulic cylinder. Detailed Implementation

[0011] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0012] This application provides a slag-blocking mechanism for the converter taphole; please refer to it. Figures 1-3 The system includes a slag-blocking ball 1, a converter 2, an outlet 3, and a moving vehicle 4. A recess 5 is provided at the connection point between the outlet 3 and the converter 2. The recess 5 protrudes from the side wall of the converter 2. The slag-blocking ball 1 being located within the recess 5 indicates that the slag blocking is successful. The system also includes: Protective plate 6 is used to shield against splashes; The crossbeam 7 is connected to the protective plate 6 at a 90-degree angle; The distal rod 8 is connected to the slag-blocking ball 1. The slag-blocking ball 1 can move close to the bottom of the converter 2, and the distal rod 8 moves up and down following the height of the slag-blocking ball 1. Reference Figure 1 , Figure 2 , Figure 3 The near-end rod 9 moves up and down synchronously with the far-end rod 8; the slag-blocking ball 1 moves from the side wall of converter 2 into the depression 5 and sinks, indirectly causing the far-end rod 8 and the near-end rod 9 to move down.

[0013] In practical applications, the mobile cart 4 can move left, right, forward, backward, or turn according to actual needs. When one-third of the molten steel is discharged from the converter 2, in order to prevent slag from being discharged into the container below through the outlet 3, the slag-blocking ball 1 needs to be connected to the mobile cart 4. The movement of the mobile cart 4 is controlled to move the slag-blocking ball 1 to the position of the outlet 3 to block the slag. The protective plate 6 is solid, so slag blocking is not done by visual inspection. It is only necessary to manually insert the slag-blocking ball 1 into the approximate position inside the converter 2. When converter 2 is in a nearly horizontal state, the moving car 4 drives the slag-blocking ball 1 to move near the lower side wall inside converter 2. When the slag-blocking ball 1 moves to the outlet 3 position, the slag-blocking ball 1 moves down under the action of gravity, pulling the far end rod 8 down, which indirectly drives the near end rod 9 down. You can try moving the ball from the side wall of converter 2 to the depression 5 position multiple times, and then pull the slag-blocking ball 1 up. Repeat the above operation multiple times to determine that the position where the slag-blocking ball 1 moves down is the position of the depression 5, which is the position of the outlet 3. This operation is blind operation, but it greatly reduces the harm of steel slag to personnel.

[0014] Reference Figure 1 , Figure 2 , Figure 3 The slag-blocking ball 1 is connected to the distal rod 8 by a rope. One end of the crossbeam 7 is provided with a sliding hole 71, and the distal rod 8 is slidably connected to the sliding hole 71.

[0015] In practical applications, the distal rod 8 can reciprocate in the vertical direction by means of the sliding hole 71.

[0016] Reference Figure 1 , Figure 2 , Figure 3 One end of the crossbeam 7 is provided with a guide wheel 72, and the other end of the crossbeam 7 is provided with a guide wheel 73. The upper end of the moving vehicle 4 is equipped with a hydraulic rod 74, and the proximal rod 9 is installed at the telescopic end of the hydraulic rod 74. A steel wire rope 75 is installed between the proximal rod 9 and the distal rod 8. The steel wire rope 75 is arranged in a Z-shape and passes around the guide wheel 72 and the guide wheel 73 respectively.

[0017] In practical applications, through the action of guide wheel 1 72, guide wheel 2 73 and wire rope 75, when the hydraulic rod 74 extends, under the action of the gravity of the slag-blocking ball 1, the near end rod 9 and the far end rod 8 move down synchronously. When the hydraulic rod 74 is shortened, it can pull the proximal rod 9, the distal rod 8 and the slag-blocking ball 1 to move upward.

[0018] Reference Figure 1 , Figure 2 , Figure 3 The side wall of the moving vehicle 4 is equipped with a scale 41, and the near end rod 9 is equipped with a pointer 42.

[0019] In practical applications, the scale 41 helps personnel determine the position of the outlet 3 and facilitates the judgment of the rise and movement of the slag-blocking ball 1.

[0020] Reference Figure 1 , Figure 2 , Figure 3 The crossbeam 7 and the protective plate 6 are in a hinged state, and a hydraulic cylinder 61 is installed between the crossbeam 7 and the protective plate 6.

[0021] In practical applications, the extension and retraction of the hydraulic cylinder 61 can drive the crossbeam 7 to swing in the vertical direction, thereby improving the flexibility of the crossbeam 7 and the slag-blocking efficiency of the slag-blocking ball 1. The protective plate 6 is designed to be detachable, so that when the mobile vehicle 4 moves to a safe area, the protective plate 6 can be removed to facilitate driving.

Claims

1. A slag-blocking mechanism at the tapping spout of a converter, comprising a slag-blocking ball (1), a converter (2), an outlet (3), and a moving vehicle (4), wherein a recess (5) is provided at the connection point between the outlet (3) and the converter (2), the recess (5) protruding from the side wall of the converter (2), and the slag-blocking ball (1) being located within the recess (5) indicates successful slag blocking, characterized in that, Also includes; Protective plate (6) is used to shield against splashes; The crossbeam (7) is connected to the protective plate (6) at a 90-degree angle; The distal rod (8) is connected to the slag-blocking ball (1). The slag-blocking ball (1) can move close to the bottom of the converter (2). The distal rod (8) moves up and down with the height of the slag-blocking ball (1). The near-end rod (9) moves up and down synchronously with the far-end rod (8); the slag-blocking ball (1) moves from the side wall of the converter (2) into the depression (5) and sinks, indirectly driving the far-end rod (8) and the near-end rod (9) to move down.

2. The slag-blocking mechanism at the converter tapping spout according to claim 1, characterized in that, The slag-blocking ball (1) is connected to the distal rod (8) by a rope. One end of the crossbeam (7) is provided with a sliding hole (71), and the distal rod (8) is slidably connected to the sliding hole (71).

3. The converter tapping spout slag-blocking mechanism according to claim 2, characterized in that, One end of the crossbeam (7) is provided with a guide wheel (72), and the other end of the crossbeam (7) is provided with a guide wheel (73). The upper end of the moving vehicle (4) is equipped with a hydraulic rod (74). The proximal rod (9) is installed at the telescopic end of the hydraulic rod (74). A wire rope (75) is installed between the proximal rod (9) and the distal rod (8). The wire rope (75) is zig-shaped and passes around the guide wheel (72) and the guide wheel (73) respectively.

4. The converter tapping spout slag-blocking mechanism according to claim 3, characterized in that, The moving vehicle (4) has a scale (41) on its side wall and a pointer (42) on one side of the near end rod (9).

5. The converter tapping spout slag-blocking mechanism according to claim 4, characterized in that, The crossbeam (7) and the protective plate (6) are in a hinged state, and a hydraulic cylinder (61) is installed between the crossbeam (7) and the protective plate (6).

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