Steel ladle collector nozzle detection tool

Abstract

The utility model relates to a steel ladle collector nozzle detection tool, and belongs to the field of metallurgical continuous casting detection equipment. Comprising a barrel sleeve (1), a baffle (6) and springs (9), the shape of an inner cavity of the barrel sleeve (1) is matched with the shape of the top of a collector nozzle iron sheet (3) of a steel ladle, strip-shaped sliding grooves (7) are symmetrically formed in the side faces of the barrel sleeve (1), the two ends of each spring (9) are assembled and hung on a spring hanging point (8) and a baffle hanging point (10) respectively, and the baffle (6) can move up and down in the barrel sleeve (1) through stretching of the two springs (9). The device can detect whether the appearance of the steel ladle collector nozzle meets the matching with the steel ladle long nozzle or not when the refractory material of the steel ladle sliding nozzle mechanism is continuously used (namely continuous sliding), so as to judge whether the steel ladle collector nozzle meets the continuous use condition or not, and avoid the phenomena that the steel ladle collector nozzle is not tightly combined with the steel ladle long nozzle, so that the casting protection is invalid, and the service life is prolonged. The casting blank quality is influenced.

Description

Technical Field

[0001] The utility model relates to a ladle tundish nozzle detection tool, belonging to the field of metallurgical continuous casting detection equipment. Background Art

[0002] In the steelmaking production of metallurgical enterprises, the flow of molten steel from the ladle into the tundish is controlled by the ladle slide gate mechanism. The slide gate mechanism consists of a mechanism driving device, a mechanical part, and a refractory part (i.e., upper and lower slide plates, tundish nozzle). The working principle of the slide gate mechanism is that the lower slide plate and the tundish nozzle are driven by the slide mechanism to slide relative to the upper slide plate, thereby controlling the opening and closing of the steel flow hole to adjust the steel flow rate. The molten steel flows out through the ladle tundish nozzle and the ladle long nozzle. The iron sheet of the ladle tundish nozzle often adheres to steel. Ladle continuous sliding means the reuse of the refractory materials of the ladle slide gate mechanism. Its advantages are as follows: ① It can save the time for replacing the refractory materials of the slide gate mechanism, which is beneficial to improving the production efficiency of the steel mill and thus reducing the production cost; ② It can reduce the frequency of replacing the refractory materials of the slide gate mechanism, thereby reducing the number of workers and the labor intensity of workers; ③ It can reduce the consumption of refractory materials per ton of steel and the use cost of raw materials. From a design perspective, the refractory materials of the ladle slide gate mechanism generally meet the requirements of continuous sliding. However, in actual production, ladle continuous sliding has certain quality and safety risks, namely: ① The outer iron sheet of the ladle tundish nozzle for continuous sliding adheres to steel and is not tightly combined with the ladle long nozzle, resulting in the failure of protective casting and affecting the quality of the cast slab; ② During continuous sliding, the inspection of the slide gate mechanism and refractory materials is not in place, resulting in the leakage of molten steel and causing safety accidents. Therefore, it is necessary to design a ladle tundish nozzle detection tool that can detect the adhesion of the outer iron sheet of the ladle tundish nozzle to steel. When the adhesion of the outer iron sheet of the ladle tundish nozzle to steel does not meet the continuous sliding standard, continuous sliding is abandoned to avoid the situation where the ladle tundish nozzle for continuous sliding is not tightly combined with the ladle long nozzle, resulting in the failure of protective casting, the increase of nitrogen and oxygen in the molten steel during the casting process, the reduction of the quality of the cast slab, and the reduction of losses. Content of the Utility Model

[0003] The purpose of the utility model is to provide a ladle tundish nozzle detection tool that can detect the adhesion of the outer iron sheet of the ladle tundish nozzle to steel. When the adhesion of the outer iron sheet of the ladle tundish nozzle to steel does not meet the continuous sliding standard, continuous sliding is abandoned to avoid the situation where the ladle tundish nozzle for continuous sliding is not tightly combined with the ladle long nozzle, resulting in the failure of protective casting, the increase of nitrogen and oxygen in the molten steel during the casting process, the reduction of the quality of the cast slab, and the reduction of losses.

[0004] The technical solution of the present utility model is: a ladle nozzle detection tool, including a barrel sleeve, a baffle, and a spring. The barrel sleeve is a frustum-shaped steel structure, and the inner cavity shape of the barrel sleeve matches the top outer shape of the ladle nozzle iron sheet. The side surface of the barrel sleeve is symmetrically provided with strip-shaped chutes, and the center line of the chute is coplanar with the center line of the barrel sleeve. On both side surfaces of the barrel sleeve, spring hanging points are provided protruding below the chute. The baffle is a long strip-shaped metal plate, and protruding baffle hanging points are provided on both end surfaces of the baffle. The length of the baffle matches the inner diameter length of the barrel sleeve. The two ends of the two springs are respectively assembled and suspended on the spring hanging points and the baffle hanging points. The baffle can move up and down in the barrel sleeve by the stretching of the two springs.

[0005] For the ladle nozzle detection tool as described above, two U-shaped handles are symmetrically provided on the outer side wall of the barrel sleeve.

[0006] For the ladle nozzle detection tool as described above, a pointer is provided at the position of one of the baffle hanging points, and a qualified area mark is engraved on the barrel sleeve. The qualified area mark is a scale line indicating that the surface of the nozzle iron sheet is in the qualified interval.

[0007] The beneficial effect of the present utility model is: the device of the present utility model has a simple structure and is easy to operate. When the refractory material of the ladle sliding nozzle mechanism is continuously used (i.e., continuous sliding), it can detect whether the outer shape of the ladle nozzle meets the requirement of matching with the ladle long nozzle, so as to judge whether the ladle nozzle has the condition of continuous use, and avoid the situation that the ladle nozzle and the ladle long nozzle are not tightly combined, resulting in the failure of protective casting and affecting the quality of the cast slab. Description of the Drawings

[0008] Figure 1 It is a schematic diagram of the device of the present utility model;

[0009] Figure 2 It is a working schematic slope diagram of the device of the present utility model for detecting the ladle nozzle;

[0010] Figure 3 It is a front view of the connecting piece of the device of the present utility model;

[0011] Markings in the figure: barrel sleeve 1, handle 2, nozzle iron sheet 3, nozzle body 4, long nozzle bowl part 5, baffle 6, chute 7, spring hanging point 8, spring 9, baffle hanging point 10, pointer 11, qualified area mark 12. Detailed Embodiments

[0012] The following further illustrates the present utility model through examples in conjunction with the accompanying drawings.

[0013] As shown in the attached drawings, a ladle nozzle detection tool includes a barrel sleeve 1, a baffle 6, and a spring 9. The barrel sleeve 1 is a frustum-shaped steel structure. The inner cavity shape of the barrel sleeve 1 matches the top outer shape of the ladle nozzle iron sheet 3. The side surface of the barrel sleeve 1 is symmetrically provided with strip-shaped chutes 7. The center line of the chute 7 is coplanar with the center line of the barrel sleeve 1. On both side surfaces of the barrel sleeve 1, spring hanging points 8 are provided protruding below the chute 7. The baffle 6 is a long strip-shaped metal plate. The two end faces of the baffle 6 are provided with protruding baffle hanging points 10. The length of the baffle 6 matches the inner diameter length of the barrel sleeve 1. The two ends of the two springs 9 are respectively assembled and suspended on the spring hanging points 8 and the baffle hanging points 10. The baffle 6 can move up and down in the barrel sleeve 1 through the stretching of the two springs (9). On the outer side wall of the barrel sleeve 1, two U-shaped handles 2 are symmetrically provided. At the position of one baffle hanging point 10 of the baffle 6, a pointer 11 is provided. On the barrel sleeve 1, a qualified area mark 12 is engraved. The qualified area mark 12 is a scale line showing that the surface of the ladle nozzle iron sheet 3 is in the qualified interval.

[0014] When the ladle is finished casting on the continuous casting platform, place the ladle on the hot repair station and use the device of the present utility model to judge whether the ladle nozzle meets the continuous sliding condition: hold the two hand-held handles 2 of the present utility model with both hands, put the large-diameter side of the barrel sleeve 1 on the outside of the ladle nozzle iron sheet 3. The baffle 6 moves under the action of the ladle nozzle body 4. When observing that the pointer 11 moves into the qualified area mark 12, it means that the ladle nozzle meets the continuous sliding condition. When the ladle is put back into use, the ladle nozzle iron sheet 3 can be well matched with the ladle long nozzle bowl part 5. If the pointer 11 moves outside the qualified area mark 12, it means that the ladle nozzle iron sheet 3 is seriously adhered with steel on the outside, and the ladle nozzle does not meet the continuous sliding condition. Abandon the continuous sliding and it is necessary to replace the refractory material of the sliding nozzle mechanism again.

[0015] The device of the present utility model has a simple structure and is convenient to operate. When the refractory material of the ladle sliding nozzle mechanism is continuously used (i.e., continuous sliding), it can detect whether the outer shape of the ladle nozzle meets the matching with the ladle long nozzle, so as to judge whether the ladle nozzle has the condition of continuous use, and avoid the situation that the ladle nozzle and the ladle long nozzle are not tightly combined, resulting in the failure of protective casting and affecting the quality of the cast slab.

Claims

1. A ladle water outlet detection tool, characterized in that The invention comprises a barrel sleeve (1), a baffle (6), and a spring (9). The barrel sleeve (1) is a truncated cone steel structure. The inner cavity shape of the barrel sleeve (1) matches the top shape of the downspout iron sheet (3) of the ladle. The side of the barrel sleeve (1) is symmetrically provided with a strip-shaped slide groove (7). The center line of the slide groove (7) is coplanar with the center line of the barrel sleeve (1). The two side surfaces of the barrel sleeve (1) are provided with raised spring hanging points (8) at the lower part of the slide groove (7). The baffle (6) is a long strip metal plate. The two end surfaces of the baffle (6) are provided with raised baffle hanging points (10). The length of the baffle (6) matches the inner diameter length of the barrel sleeve (1). The two ends of the two springs (9) are respectively assembled and suspended on the spring hanging point (8) and the baffle hanging point (10). The baffle (6) can move up and down in the barrel sleeve (1) through the stretching of the two springs (9).

2. The ladle outlet detection tool according to claim 1, characterized in that Two X-shaped handles (2) are symmetrically arranged on the outer side wall of the barrel sleeve (1).

3. The ladle outlet detection tool according to claim 1, characterized in that A pointer (11) is provided at the position of the baffle hanging point (10) on one side of the (6), and a qualified area mark (12) is engraved on the barrel sleeve (1), and the qualified area mark (12) is a scale line indicating that the surface of the drain iron sheet (3) is in the qualified range.

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