High-wear-resistance sliding type steel ladle long nozzle

Abstract

The utility model relates to the technical field of steel ladles, in particular to a high-wear-resistant sliding type steel ladle long nozzle which comprises a long nozzle body, a wear-resistant frame is installed outside the long nozzle body, installation openings are formed in the surfaces of the inner side and the outer side of the wear-resistant frame, and a first air bag and a second air bag are fixedly connected into the two installation openings respectively. A plurality of open grooves are formed in the outer side of the wear-resisting frame, a rotating plate is rotationally connected into each open groove, a plurality of sealing cavities are formed in the wear-resisting frame, a sliding assembly is arranged in each sealing cavity, and each sliding assembly comprises a sealing plate installed in the corresponding sealing cavity in a sliding mode. When the long nozzle body moves, the wear-resisting frame and the rotating plates made of the wear-resisting ceramic materials can replace the long nozzle body to generate friction with a tundish, so that the long nozzle body can be effectively prevented from being seriously worn, the service life of the long nozzle body can be prolonged, and the long nozzle can be used conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of ladles, in particular to a high-wear-resistant sliding ladle shroud. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to the ladle is also constantly improving. When the molten steel enters the tundish from the ladle, many important components are needed. The long nozzle is one of the important components for the molten steel to enter the tundish from the ladle.

[0003] The shroud currently used often rubs against the tundish during use. After long-term use, the shroud will be severely worn, resulting in a shortened service life of the shroud, which is not conducive to the use of the shroud. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: the long shroud currently used often rubs against the tundish during use. After long-term use, the long shroud will be severely worn, resulting in a shortened service life of the long shroud, which is not conducive to the use of the long shroud. A highly wear-resistant sliding ladle shroud is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A highly wear-resistant sliding ladle shroud comprises a shroud body, a wear-resistant frame is installed on the outside of the shroud body, mounting openings are provided on both inner and outer surfaces of the wear-resistant frame, and a first airbag and a second airbag are fixedly connected to the two mounting openings respectively;

[0007] A plurality of grooves are provided on the outer side of the wear-resistant frame, each of which is rotatably connected to a rotating plate, a plurality of sealed cavities are provided in the wear-resistant frame, each of which is provided with a sliding assembly, the sliding assembly includes a sealing plate slidably installed in the sealing cavity, one side of the sealing plate is fixedly connected to a sliding rod, and each of the sealed cavities is connected to the first airbag and the second airbag through a plurality of shunt pipes.

[0008] Preferably, each of the sliding rods is sleeved with a first spring, one end of the first spring is fixedly connected to the sliding rod, and the other end of the first spring is fixedly connected to the inner wall of the corresponding sealing cavity.

[0009] Preferably, one end of each sliding rod close to the corresponding rotating plate is arranged as an arc surface, and a sealing ring is fixedly arranged on an inner wall of one side of each sealing cavity.

[0010] Preferably, each of the rotating plates is sleeved with a torsion spring, one end of the torsion spring is fixedly connected to the rotating plate, and the other end of the torsion spring is fixedly connected to the inner wall of the slot.

[0011] Preferably, a plurality of slide grooves are provided on the outer side surface of the long water nozzle body, a slider is slidably installed in each of the slide grooves, each of the sliders is connected to the corresponding slide groove via a second spring, and one end of each of the sliders is fixedly connected to the wear-resistant frame.

[0012] Preferably, a heat insulating pad is fixedly installed on the outer side of the long shroud body, and the wear-resistant frame is made of wear-resistant ceramic material.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the shroud body moves, the wear-resistant frame and the rotating plates made of wear-resistant ceramic material will replace the shroud body to rub against the tundish, which can effectively prevent the shroud body from severe wear, help to extend the service life of the shroud body, and facilitate the use of the shroud. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of a high wear-resistant sliding ladle shroud proposed by the utility model;

[0016] Figure 2 This is a side view structural schematic diagram of a high wear-resistant sliding ladle shroud proposed by the utility model;

[0017] Figure 3 This is a partial cross-sectional structural schematic diagram of a high wear-resistant sliding ladle shroud proposed by the utility model;

[0018] Figure 4 It is a schematic diagram of a top view and a partial cross-sectional structure of the wear-resistant frame in the utility model.

[0019] In the figure: 1 long nozzle body, 2 wear-resistant frame, 3 insulation pad, 4 first air bag, 5 second air bag, 6 torsion spring, 7 rotating plate, 8 slide bar, 9 slot, 10 first spring, 11 sealing plate, 12 shunt pipe, 13 second spring, 14 slide groove, 15 slider, 16 sealing cavity. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0022] Reference Figure 1-Figure 4 A highly wear-resistant sliding ladle shroud comprises a shroud body 1, a wear-resistant frame 2 is installed on the outside of the shroud body 1, mounting openings are provided on both inner and outer surfaces of the wear-resistant frame 2, a first airbag 4 and a second airbag 5 are fixedly connected in the two mounting openings respectively, a plurality of slots 9 are provided on the outside of the wear-resistant frame 2, a rotating plate 7 is rotatably connected in each slot 9, a plurality of sealing cavities 16 are provided in the wear-resistant frame 2, a sliding assembly is provided in each sealing cavity 16, the sliding assembly comprises a sealing plate 11 slidably installed in the sealing cavity 16, a sliding rod 8 is fixedly connected to one side of the sealing plate 11, and each sealing cavity 16 is connected to the first airbag 4 and the second airbag 5 through a plurality of shunt pipes 12.

[0023] A first spring 10 is sleeved on each slide rod 8, one end of the first spring 10 is fixedly connected to the slide rod 8, and the other end of the first spring 10 is fixedly connected to the inner wall of the corresponding sealing cavity 16. During the rotation of each rotating plate 7, its surface will move against the arc surface of the corresponding slide rod 8, so that the slide rod 8 slides inside the sealing cavity 16 and drives the sealing plate 11 to move together, and the first spring 10 is deformed.

[0024] One end of each sliding rod 8 close to the corresponding rotating plate 7 is set as an arc surface, and a sealing ring is fixedly set on the inner wall of one side of each sealing cavity 16. A torsion spring 6 is sleeved on each rotating plate 7, and one end of the torsion spring 6 is fixedly connected to the rotating plate 7, and the other end of the torsion spring 6 is fixedly connected to the inner wall of the slot 9. In the process of each inclined rotating plate 7 extending into the middle package, one side surface of each rotating plate 7 will be pressed against the inner wall of the middle package, and the rotating plate 7 rotates in the slot 9 at the same time, and the rotating plate 7 rotates in the direction close to the inner wall of the slot 9, and the torsion spring 6 is deformed. Each sealing ring is sleeved on the outer side of the corresponding sliding rod 8, so that the sealing performance is good when the sliding rod 8 and the sealing cavity 16 are connected.

[0025] A plurality of slide grooves 14 are provided on the outer side of the long water nozzle body 1, and a slider 15 is slidably installed in each slide groove 14, and each slider 15 is connected to the corresponding slide groove 14 through a second spring 13, and one end of each slider 15 is fixedly connected to the wear-resistant frame 2, and each slider 15 made of stainless steel is slidably set in the corresponding slide groove 14, and can only slide along the slide groove 14 and cannot be separated from the slide groove 14, one end of each second spring 13 is fixedly connected to the inner wall of the corresponding slide groove 14, and the other end of the second spring 13 is fixedly connected to the slider 15, and a thermal insulation pad 3 is fixedly installed on the outer side of the long water nozzle body 1, the wear-resistant frame 2 is set to wear-resistant ceramic material, and the thermal insulation pad 3 is set to thermal insulation material, and the first airbag 4, the second airbag 5, each torsion spring 6 and the slide rod 8 have good high temperature resistance.

[0026] In the utility model, when in use, the top of the long nozzle body 1 is connected to the ladle outlet, and then the bottom of the long nozzle body 1 and the wear-resistant frame 2 are inserted into the middle ladle in sequence, and the first air bag 4 and the second air bag 5 at one end of the wear-resistant frame 2 are first inserted into the middle ladle, and then each inclined rotating plate 7 is extended into the middle ladle. During this process, one side surface of each rotating plate 7 will contact the inner wall of the middle ladle, and the rotating plate 7 rotates in the slot 9 at the same time, and the rotating plate 7 rotates in the direction close to the inner wall of the slot 9. Since one end of the torsion spring 6 is fixedly connected to the rotating plate 7, and the other end of the torsion spring 6 is fixedly connected to the inner wall of the slot 9, the torsion spring 6 is deformed. During the rotation of each rotating plate 7, its surface will move against the arc surface of the corresponding slide rod 8, so that the slide rod 8 slides inside the sealing cavity 16 and drives the sealing plate 11 to move together, and the first spring 10 is deformed.

[0027] The sealing plate 11 has good sealing performance when connected to the inner wall of the sealing cavity 16, and one end of each diverter tube 12 is connected to the air outlet of the corresponding sealing cavity 16, and the other two ends are connected to the first airbag 4 and the second airbag 5 respectively. During the movement of the sealing plate 11, the gas inside the sealing cavity 16 will be squeezed, so that the gas will be transported to the first airbag 4 and the second airbag 5 respectively through each diverter tube 12, and the first airbag 4 and the second airbag 5 will expand at the same time, and the surface of the annular first airbag 4 will be in close contact with the surface of the long nozzle body 1, and the surface of the annular second airbag 5 will be in close contact with the surface of the middle package, thereby blocking the gap between the middle package and the long nozzle body 1. When the long nozzle body 1 moves, the wear-resistant frame 2 and the rotating plates 7 made of wear-resistant ceramic material will replace the long nozzle body 1 to rub against the middle package, which can effectively prevent the long nozzle body 1 from serious wear, which is beneficial to prolonging the service life of the long nozzle body 1 and facilitating the use of the long nozzle.

[0028] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly wear-resistant sliding ladle shroud, comprising a shroud body (1), characterized in that: A wear-resistant frame (2) is installed on the outside of the long shroud body (1), and mounting openings are provided on both inner and outer surfaces of the wear-resistant frame (2), and a first airbag (4) and a second airbag (5) are fixedly connected to the two mounting openings respectively; The wear-resistant frame (2) is provided with a plurality of slots (9) on the outside, each of the slots (9) being rotatably connected to a rotating plate (7), the wear-resistant frame (2) is provided with a plurality of sealing cavities (16), each of the sealing cavities (16) being provided with a sliding assembly, the sliding assembly comprising a sealing plate (11) slidably mounted in the sealing cavity (16), one side of the sealing plate (11) being fixedly connected to a sliding rod (8), and each of the sealing cavities (16) being connected to the first airbag (4) and the second airbag (5) via a plurality of shunt pipes (12).

2. A highly wear-resistant sliding ladle shroud according to claim 1, characterized in that Each of the slide bars (8) is sleeved with a first spring (10), one end of the first spring (10) is fixedly connected to the slide bar (8), and the other end of the first spring (10) is fixedly connected to the inner wall of the corresponding sealing cavity (16).

3. The highly wear-resistant sliding ladle shroud according to claim 1, characterized in that: One end of each sliding rod (8) close to the corresponding rotating plate (7) is arranged as an arc surface, and a sealing ring is fixedly arranged on the inner wall of one side of each sealing cavity (16).

4. The highly wear-resistant sliding ladle shroud according to claim 1, characterized in that: A torsion spring (6) is sleeved on each rotating plate (7), one end of the torsion spring (6) is fixedly connected to the rotating plate (7), and the other end of the torsion spring (6) is fixedly connected to the inner wall of the slot (9).

5. The highly wear-resistant sliding ladle shroud according to claim 1, characterized in that: The outer side surface of the long shroud body (1) is provided with a plurality of slide grooves (14), each of the slide grooves (14) having a sliding block (15) slidably installed therein, each of the sliding blocks (15) being connected to the corresponding slide groove (14) via a second spring (13), and one end of each of the sliding blocks (15) being fixedly connected to the wear-resistant frame (2).

6. The highly wear-resistant sliding ladle shroud according to claim 1, characterized in that: A heat insulating pad (3) is fixedly mounted on the outer side of the long shroud body (1), and the wear-resistant frame (2) is made of a wear-resistant ceramic material.

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