A slag notch installation adjusting device for a converter steel tapping hole

Abstract

The utility model discloses a kind of adjusting device for installing damming slag mark for converter steelmaking tapping hole, it is characterized by, including base, and the upper frame installed in the base top by multiple columns;The side of the upper frame is open structure;The upper surface of the base is provided with a chute, the rack that can slide along it is installed in the chute;In corresponding to the opening direction of the upper frame, the one end of the rack is connected with the damming slag mark support plate for supporting damming slag mark;The upper surface of the base is installed with rotating shaft by bearing seat, the driving gear that is engaged with the rack is fixedly installed on the rotating shaft;The one end of the rotating shaft extends to the outside of the bearing seat and is connected with two-way ratchet drive sleeve, the footboard for driving its rotation is connected with the two-way ratchet drive sleeve;Reset spring is provided below the footboard.Compared with traditional method, the utility model not only completely eliminates the safety risk of artificial handling, more significantly improves the adaptability to curved delivery rod, reduces the production interruption and spare parts consumption caused by replacing delivery rod.

Description

Technical Field

[0001] This utility model belongs to the field of converter steelmaking technology, and in particular relates to a slag-blocking mark installation and adjustment device for the tapping port of converter steelmaking. Background Technology

[0002] Converter steelmaking is a key process in modern steel production, and tapping is its final and crucial step. To prevent molten slag from flowing into the ladle with the molten steel during tapping, thus affecting the purity of the steel and product quality, a slag-blocking method is commonly used. This involves using a bidding vehicle to drop slag-blocking markers (also called slag-blocking tools) onto the tapping spout. These markers are typically ceramic products with rods and are quite heavy, weighing around 40 kilograms.

[0003] In existing technologies, the installation of heavy slag-blocking markers onto the delivery boom of the bidding vehicle mainly relies on manual handling and positioning. This operation has the following significant drawbacks: First, novice operators, due to lack of experience, are prone to improper operation during handling and installation, causing the slag-blocking markers to slip or collide, posing serious safety hazards such as crushing injuries and burns, and threatening personal safety; second, manual installation is time-consuming and labor-intensive, which is incompatible with the fast-paced production schedule and affects the overall efficiency of steel tapping operations.

[0004] Furthermore, the delivery boom of the bidding vehicle is prone to bending and deformation during long-term use, especially when dealing with abnormal situations such as material falling from the furnace mouth or the bidding vehicle derailing. Once the delivery boom bends, the position of its top (i.e., the elevation limit) will decrease, making it difficult to align the slag-blocking markers during subsequent installation, thus making installation even more difficult. Faced with continuous production tasks, immediately replacing the bent delivery boom would consume valuable production time, while continuing to use it would further exacerbate the operational difficulties and safety risks.

[0005] Currently, there is a lack of a dedicated adjustment device that can quickly, safely, and effectively assist in the installation of slag-blocking markers and accommodate a certain degree of bending deformation of the delivery rod. Therefore, it is particularly urgent to develop a pre-installation adjustment device for slag-blocking markers that can reduce operational difficulty, eliminate safety hazards, improve installation efficiency, and compensate for deformation of the delivery rod. Utility Model Content

[0006] The purpose of this utility model is to provide an installation and adjustment device for slag-blocking markers at the tapping port of a converter steelmaking plant, so as to solve the problems of large safety hazards, low efficiency and difficulty in adapting to bending delivery rods when manually installing slag-blocking markers. The device achieves fast, safe and accurate positioning of the slag-blocking markers through foot pedal drive and posture adjustment mechanism.

[0007] This utility model is implemented as follows: a slag-blocking marker installation and adjustment device for the tapping port of a converter steelmaking plant, characterized in that it includes a base and an upper frame mounted above the base via multiple columns; one side of the upper frame is an open structure; a sliding groove is provided on the upper surface of the base, and a rack that can slide along the groove is installed in the sliding groove; in the direction corresponding to the opening of the upper frame, one end of the rack is connected to a slag-blocking marker support plate for supporting the slag-blocking marker; a rotating shaft is mounted on the upper surface of the base via a bearing seat, and a drive gear that meshes with the rack is fixedly mounted on the rotating shaft; one end of the rotating shaft extends to the outside of the bearing seat and is connected to a bidirectional ratchet drive sleeve, and the bidirectional ratchet drive sleeve is connected to a foot pedal for driving its rotation; a return spring is provided below the foot pedal.

[0008] More preferably, the slide groove is a T-shaped slide groove, and the lower surface of the rack is provided with a T-shaped sliding guide that cooperates with the T-shaped slide groove.

[0009] More preferably, one end of the return spring is connected to the foot pedal, and the other end is connected to the base or fixed foundation.

[0010] More preferably, the number of columns is four, which are respectively set at the four corners of the base.

[0011] More preferably, the slag-blocking support plate is located on one side of the open structure of the upper frame, and is used to receive and push out the slag-blocking mark from the side.

[0012] Preferably, the base is also provided with foot bolt holes.

[0013] The advantages and technical effects of this invention are as follows: This design allows the centerline of the slag-blocking marker to precisely coincide with the axis of the bent feeding rod, achieving a clever compensation of "oblique bending," greatly reducing the difficulty of alignment. Compared with traditional methods, this invention not only completely eliminates the safety risks of manual handling but also significantly improves the adaptability to bent feeding rods, reducing production interruptions and spare parts consumption caused by replacing feeding rods. The entire device has a stable structure, is easy and intuitive to operate, and effectively improves the safety, efficiency, and economy of slag-blocking marker installation, providing a reliable guarantee for the smooth operation of converter steelmaking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the upper frame structure of this utility model.

[0015] In the diagram: 1. Slag-blocking marker; 1-1. Slag marker block; 1-2. Marker rod; 1-3. Marker insertion handle; 10. Base; 11. Slide groove; 12. Anchor bolt hole; 20. Column; 30. Upper frame; 40. Rack; 41. T-shaped sliding guide; 50. Slag-blocking marker support plate; 60. Bearing seat; 70. Rotating shaft; 80. Drive gear; 90. Two-way ratchet drive sleeve; 100. Foot pedal; 110. Return spring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0017] Please see Figure 1 and Figure 2 A slag-blocking marker installation and adjustment device for a converter steelmaking taphole includes a base 10 and an upper frame 30 mounted above the base 10 via multiple columns 20. One side of the upper frame 30 is an open structure. A groove 11 is provided on the upper surface of the base 10, and a rack 40 that can slide along the groove 11 is installed in the groove 11. In the direction corresponding to the opening of the upper frame 30, one end of the rack 40 is connected to a slag-blocking marker support plate 50 for supporting the slag-blocking marker 1. The slag-blocking marker 1 is a known product component including a slag-blocking marker block 1-1, used to seal the steel taphole. The marker rod 1-2 at the bottom of the slag marker block cooperates with the steel opening to serve as a guide, and the marker holding rod 1-3 at the top is used for hand operation; the upper surface of the base 10 is equipped with a rotating shaft 70 through a bearing seat 60, and a drive gear 80 that meshes with the rack 40 is fixedly installed on the rotating shaft 70; one end of the rotating shaft 70 extends to the outside of the bearing seat 60 and is connected to a bidirectional ratchet drive sleeve 90, and the bidirectional ratchet drive sleeve 90 is connected to a foot pedal 100 for driving its rotation; a return spring 110 is provided below the foot pedal 100.

[0018] This solution uses a foot-operated rack and pinion mechanism and a bidirectional ratchet drive sleeve to convert the horizontal linear motion of the rack 40 into the tilting rotation of the slag-blocking support plate 50, thereby adjusting the horizontal tilt angle of the slag-blocking marker 1. This design directly addresses the misalignment problem caused by the bending of the delivery rod, achieving a creative compensation of "oblique to bend," eliminating the need for the delivery rod to be perfectly straight during installation, significantly improving the installation success rate and work efficiency, while fundamentally avoiding the safety risks associated with manual handling and adjustment. The bidirectional ratchet drive sleeve 90 uses a known bidirectional ratchet mechanism. The core of this mechanism is that it has a special ratchet and symmetrically arranged pawls inside, which can be used to switch directions via a fork. This allows the foot pedal 100 to be stepped on forward or backward (i.e., the input shaft rotates forward or backward), driving the rotating shaft 70 to rotate forward or backward, thus enabling adjustment in two directions.

[0019] Preferably, the slide groove 11 is a T-shaped slide groove, and the lower surface of the rack 40 is provided with a T-shaped sliding guide part 41 that cooperates with the T-shaped slide groove. The cooperation between the T-shaped groove and the T-shaped guide part ensures that the rack 40 can only move smoothly and vertically in a predetermined direction when bearing the huge weight of the slag-blocking mark 1, effectively preventing the rack 40 from deviating, tilting or jamming during sliding, and ensuring the transmission accuracy and the working reliability of the entire device.

[0020] More preferably, one end of the return spring 110 is connected to the foot pedal 100, and the other end is connected to the base 10 or a fixed foundation.

[0021] The return spring 110 automatically returns the foot pedal 100 to its initial position after each pedal stroke, preparing it for the next operation. This simplifies the operation, achieves semi-automation of the device, and improves operational continuity. Simultaneously, the spring force helps to offset some of the operating force, making pedaling less strenuous.

[0022] Preferably, there are four columns 20, which are respectively set at the four corners of the base 10. The four columns are symmetrically arranged between the upper frame 30 and the base 10, forming a stable frame support structure that can withstand the forces and moments that may be generated in various directions during the installation of the slag retainer 1, ensuring the overall rigidity and stability of the device under heavy load conditions and extending its service life.

[0023] Preferably, the slag-blocking marker support plate 50 is located on one side of the open structure of the upper frame 30, and is used to receive and push out the slag-blocking marker 1 from the side. The side-open support design allows the slag-blocking marker 1 to be easily hoisted onto the support plate 50 from the side, and is limited by the upper frame 30, perfectly simulating the path of manual marker installation, but completely avoiding direct contact between people and heavy objects, which is both safe and in line with operating habits.

[0024] Preferably, the base 10 is also provided with foot bolt holes 12. The entire device can be firmly installed on the foundation through the foot bolt holes 12, preventing it from moving or tipping over during operation, further enhancing safety and stability during operation, and making it suitable for industrial environments with high vibration.

[0025] The working principle of this utility model is as follows: The operator places the slag-blocking marker 1 sideways on the slag-blocking marker support plate 50. When it is necessary to adjust the tilt angle of the slag-blocking marker 1 to align with the curved delivery rod, the operator steps on the foot pedal 100. The foot pedal 100 transmits rotational motion to the rotating shaft 70 through the bidirectional ratchet drive sleeve 90, which in turn drives the drive gear 80 to rotate. The rack 40, which meshes with the gear 80, moves horizontally accordingly. Since the slag-blocking marker support plate 50 is fixedly connected to the rack 40, the horizontal forward or backward movement of the rack 40 is converted into horizontal movement of the support plate 50, thereby changing the horizontal tilt angle of the slag-blocking marker 1 placed on it. By stepping on the foot pedal in the forward or reverse direction to adjust left and right, the axis of the slag-blocking marker 1 can be aligned with the axis of the curved delivery rod, making it easy to insert. After releasing the foot pedal 100, the foot pedal 100 returns to its original position under the action of the return spring 110, ready for the next adjustment.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A slag-blocking marker installation and adjustment device for the tapping outlet of a converter steelmaking plant, characterized in that, Includes a base (10) and an upper frame (30) mounted above the base (10) by multiple columns (20); one side of the upper frame (30) is an open structure; a groove (11) is provided on the upper surface of the base (10), and a rack (40) that can slide along the groove (11) is installed in the groove (11); in the direction corresponding to the opening of the upper frame (30), one end of the rack (40) is connected to a slag-blocking support plate (50) for supporting the slag-blocking mark (1); the base A rotating shaft (70) is mounted on the upper surface of (10) via a bearing seat (60). A drive gear (80) that meshes with the rack (40) is fixedly mounted on the rotating shaft (70). One end of the rotating shaft (70) extends to the outside of the bearing seat (60) and is connected to a bidirectional ratchet drive sleeve (90). The bidirectional ratchet drive sleeve (90) is connected to a foot pedal (100) for driving its rotation. A return spring (110) is provided below the foot pedal (100).

2. The slag-blocking marker installation and adjustment device for the tapping outlet of a converter steelmaking plant according to claim 1, characterized in that, The slide groove (11) is a T-shaped slide groove, and the lower surface of the rack (40) is provided with a T-shaped sliding guide (41) that cooperates with the T-shaped slide groove.

3. The slag-blocking marker installation and adjustment device for the tapping outlet of a converter steelmaking plant according to claim 1, characterized in that, One end of the return spring (110) is connected to the foot pedal (100), and the other end is connected to the base (10) or the fixed foundation.

4. The slag-blocking marker installation and adjustment device for the tapping outlet of a converter steelmaking plant according to claim 1, characterized in that, The number of columns (20) is four, which are respectively set at the four corners of the base (10).

5. The slag-blocking marker installation and adjustment device for the tapping outlet of a converter steelmaking plant according to claim 1, characterized in that, The slag-blocking support plate (50) is located on one side of the open structure of the upper frame (30) and is used to receive and push out the slag-blocking sign (1) from the side.

6. The slag-blocking marker installation and adjustment device for the tapping outlet of a converter steelmaking plant according to claim 1, characterized in that, The base is also provided with foot bolt holes (12).

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