Steelmaking tundish water outlet maintenance device

Abstract

A tundish water outlet maintenance device for steelmaking comprises a plugging plate and an accident sliding plate, the plugging plate can be inserted between a water outlet of a tundish and an upper sliding plate of a sliding plate assembly, the accident sliding plate can enter a lower sliding plate containing space after a lower sliding plate of the sliding plate assembly is taken out, and a through hole communicated with an outlet of the upper sliding plate is formed in the accident sliding plate. The through hole and the outlet are coaxially arranged, and the diameter of the through hole is larger than that of the outlet. The accident sliding plate comprises a body and a base which are integrally connected, a through groove is formed in the body and extends in the moving direction of the accident sliding plate, and the through hole is communicated with the through groove and penetrates through the base. The position of the accident sliding plate is simply adjusted, so that the accident sliding plate can be prevented from shielding part of clamped steel, and the clamped steel can be thoroughly removed; meanwhile, the erosion condition of the upper sliding plate used for a long time can be conveniently checked.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tundish of steel plant, concretely speaking, a tundish water outlet maintenance device for steelmaking. BACKGROUND

[0002] The tundish of steel plant is the key component of the continuous casting machine. It can not only store and distribute molten steel, but also filter non-metallic inclusions, and purify molten steel. In addition, the tundish can also adjust the temperature of molten steel and control the flow of molten steel. The tundish is mainly composed of an outer shell, an inner lining, a water outlet, a slide plate assembly, a gas blowing system and a heating device. The slide plate assembly is composed of an upper slide plate and a lower slide plate with an outlet. When the outlets of the upper slide plate and the lower slide plate are aligned, the molten steel flows out of the water outlet along the outlet. The working principle is that the molten steel flows from the ladle into the tundish, stays and is treated in the tundish for a certain period of time, and then flows out of the water outlet to the next process.

[0003] During the continuous casting production process in the steel plant, the tundish water outlet is burned or the slide plate assembly is replaced several times. The upper slide plate and the lower slide plate of the slide plate assembly are prone to steel clamping. Too much steel clamping will cause the lower slide plate to be unable to move, causing the molten steel injection to be forced to stop. Or too much steel clamping causes a large gap between the upper slide plate and the lower slide plate, which causes the gap to accumulate steel during production, and even causes a serious molten steel leakage accident. Therefore, the steel clamping needs to be cleaned. When cleaning the steel clamping, the upper slide plate is supported by placing a number of pads at the initial position of the lower slide plate after removing the lower slide plate. However, it is difficult to position the pads when placing them into the initial position of the lower slide plate, and the pads may block part of the steel clamping, making it difficult to completely remove the steel clamping. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that the existing pad is difficult to position and easily blocks part of the steel clamping, resulting in incomplete removal of the steel clamping, the utility model provides a tundish water outlet maintenance device for steelmaking, which avoids the influence of the pad on the cleaning of the steel clamping.

[0005] The utility model adopts the technical scheme that a tundish water outlet maintenance device for steelmaking is provided, which comprises a plugging plate and an emergency slide plate. The plugging plate can be inserted between the water outlet of the tundish and the upper slide plate of the slide plate assembly. The emergency slide plate can enter the lower slide plate containing space after the lower slide plate of the slide plate assembly is removed. A through hole is formed in the emergency slide plate and communicates with the outlet of the upper slide plate. The through hole is coaxially arranged with the outlet, and the diameter of the through hole is greater than the diameter of the outlet.

[0006] As a further optimization of the utility model kind intermediate ladle outlet water mouth maintenance device for steelmaking: the accident slide is slidably provided with a pull-out assembly, and the pull-out assembly is provided with a anti-falling nut for preventing the pull-out assembly from falling off, and the sliding direction of the pull-out assembly is the same as the moving direction of the accident slide.

[0007] As a further optimization of the utility model kind intermediate ladle outlet water mouth maintenance device for steelmaking: the pull-out assembly comprises two pull rods which are slidably arranged through the accident slide, the pull rods are parallel to each other, the sliding direction of the pull rods is the same as the moving direction of the accident slide, one end of the pull rod is provided with an anti-falling nut, and the other end of the pull rod is connected through a connecting rod.

[0008] As a further optimization of the utility model kind intermediate ladle outlet water mouth maintenance device for steelmaking: the accident slide comprises a body and a base which are integrally connected, a through slot is formed in the body and extends along the moving direction of the accident slide, and a through hole is in communication with the through slot and penetrates through the base.

[0009] As a further optimization of the utility model kind intermediate ladle outlet water mouth maintenance device for steelmaking: the length of the through slot is 85-95mm, the width of the through slot is 55-65mm, and the thickness of the through slot is 7-12mm.

[0010] As a further optimization of the utility model kind intermediate ladle outlet water mouth maintenance device for steelmaking: the length of the body is 125-130mm, the width of the body is 85-95mm, and the thickness of the body is 30-35mm.

[0011] As a further optimization of the utility model kind intermediate ladle outlet water mouth maintenance device for steelmaking: the edge of the plugging plate is provided with an inclined surface.

[0012] As a further optimization of the utility model kind intermediate ladle outlet water mouth maintenance device for steelmaking: the diameter of the through hole is 55-65mm.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a plugging plate and an accident slide, the plugging plate can be inserted between the outlet of the intermediate ladle and the upper slide plate of the slide plate assembly, the accident slide can enter the lower slide plate containing space after the lower slide plate of the slide plate assembly is taken out, the through hole in the accident slide is coaxially arranged with the outlet of the upper slide plate, and the diameter of the through hole is greater than the diameter of the outlet, so that the through hole in the accident slide is aligned with the outlet of the upper slide plate when the accident slide is installed, so that the clamped steel can be handled conveniently, the position of the accident slide can be simply adjusted to avoid the accident slide from shielding part of the clamped steel, the clamped steel can be completely removed, and the erosion of the upper slide plate after long-time use can be conveniently checked. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the installation schematic diagram of the utility model;

[0016] Figure 2 is the schematic diagram of one embodiment of the emergency slide plate;

[0017] Figure 3 is the schematic diagram of another embodiment of the emergency slide plate;

[0018] Figure 4 is the sectional view of the emergency slide plate;

[0019] Marked in the figure: 1, tundish, 2, water outlet, 3, plugging plate, 4, upper slide plate, 5, emergency slide plate, 6, body, 7, base, 8, through slot, 9, through hole, 10, pulling assembly, 11, connecting rod, 12, pull rod, 13, anti-drop nut. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be further described in detail in combination with specific embodiments, and the parts not described and disclosed in the following embodiments of the utility model should be understood as the prior art known or should be known by the person skilled in the art, such as the specific structure of the tundish 1, the specific structure of the upper slide plate 4 and the lower slide plate, the material of the emergency slide plate 5, and how to handle the clamped steel.

[0021] Embodiment 1

[0022] A tundish water outlet maintenance device for steelmaking, as shown in Figure 1 and Figure 2 , comprises a plugging plate 3 and an emergency slide plate 5, the plugging plate 3 can be inserted between the water outlet 2 of the tundish 1 and the upper slide plate 4 of the slide plate assembly, in order to facilitate the insertion of the plugging plate 3 between the water outlet 2 and the upper slide plate 4, the edge of the plugging plate 3 is provided with an inclined surface. The emergency slide plate 5 can enter the lower slide plate containing space after the lower slide plate of the slide plate assembly is taken out, a through hole 9 is formed in the emergency slide plate 5 and communicates with the outlet of the upper slide plate 4, the through hole 9 is coaxially arranged with the outlet, and the aperture of the through hole 9 is greater than the caliber of the outlet.

[0023] When the clamped steel treatment is needed, first, the plugging plate 3 is placed between the water outlet 2 and the upper slide plate 4 to close the water outlet 2, and then the lower slide plate is taken out. Then, the emergency slide plate 5 is placed in the containing space where the lower slide plate is located. When installing the emergency slide plate 5, it is necessary to ensure that the through hole 9 thereon is accurately aligned with the outlet of the upper slide plate 4, so as to smoothly carry out the clamped steel treatment work. Since the aperture of the through hole 9 of the emergency slide plate 5 is greater than the caliber of the outlet of the upper slide plate 4, only a simple adjustment of the position of the emergency slide plate 5 is needed to avoid its shielding part of the clamped steel, thereby facilitating the complete removal of the clamped steel and facilitating the inspection of the erosion of the long-time used upper slide plate.

[0024] The accident slide 5 comprises an integral body 6 and a base 7, the body 6 is provided with a through slot 8, and the through slot 8 extends along the moving direction of the accident slide 5, and the through hole 9 is communicated with the through slot 8 and penetrates the base 7. The through slot 8 is provided on the body 6, and after the accident slide 5 is placed at the position of the original slide plate, the through slot 8 forms a cleaning space, reduces the contact with the clamped steel, and further facilitates the cleaning of the clamped steel.

[0025] The length of the through slot 8 is set to 85-95mm, and the optimal setting is 90mm, the width of the through slot 8 is set to 55-65mm, and the optimal setting is 60mm, the thickness of the through slot 8 is set to 7-12mm, and the optimal setting is 10mm. The length of the body 6 is set to 125-130mm, and the optimal setting is 128mm, the width of the body 6 is set to 85-95mm, and the optimal setting is 90mm, the thickness of the body 6 is set to 30-35mm, and the optimal setting is 34mm. The aperture of the through hole 9 is set to 55-65mm, and the optimal setting is 60mm.

[0026] The above is the basic embodiment of the utility model, which can be further improved, optimized and limited on the basis of the above, so as to obtain the following embodiments:

[0027] Embodiment 2

[0028] This embodiment is an improved scheme based on embodiment 1, and the main structure is the same as that of embodiment 1, and the improvement point is that: Figure 3 And Figure 4 In order to facilitate the adjustment of the position of the accident slide 5, avoid the accident slide 5 from shielding the clamped steel and affecting the processing of the clamped steel, the pull-out assembly 10 is slidably arranged on the accident slide 5, and the anti-falling nut 13 is arranged on the pull-out assembly 10 to prevent the pull-out assembly 10 from falling off, and the sliding direction of the pull-out assembly 10 is the same as the moving direction of the accident slide 5. After the accident slide 5 is placed in the slide plate containing space, the operator can pull the pull-out assembly 10 by using other equipment to adjust the position of the accident slide 5, so that the through hole 9 and the outlet are aligned, and the subsequent processing of the clamped steel is not disturbed.

[0029] The pulling assembly 10 comprises two pull rods 12 sliding through the accident slide plate 5, and the pull rods 12 are parallel to each other, the sliding direction of the pull rods 12 is the same as the moving direction of the accident slide plate 5, one end of the pull rods 12 penetrating through the accident slide plate 5 is provided with a anti-loosening nut 13, and the other end of the pull rods 12 is connected through a connecting rod 11. The pull rods 12 are arranged in parallel to each other, which ensures that the pull rods 12 can smoothly slide through the body 6 of the accident slide plate 5. An external thread matched with the anti-loosening nut 13 is designed at one end of the pull rods 12 penetrating through the accident slide plate 5. Through the close cooperation of the anti-loosening nut 13 and the external thread, the pull rods 12 can be effectively prevented from falling off from the accident slide plate 5 during the pulling of the pull rods 12. The other end of the pull rods 12 is connected through the connecting rod 11. When the operator needs to adjust the position of the accident slide plate 5 by himself or with the help of related equipment, the connecting rod 11 can be pulled to achieve the purpose. Through the adjustment of the position of the accident slide plate 5, the through hole 9 on the accident slide plate 5 can be accurately aligned with the outlet of the upper slide plate 4, so as to ensure that the processing process of the clamped steel is not affected.

[0030] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tundish nozzle maintenance device for steelmaking, characterized by: The application relates to a slide plate assembly for a tundish, which comprises a blocking plate (3) and an emergency slide plate (5), the blocking plate (3) can be inserted between a water outlet (2) of a tundish (1) and an upper slide plate (4) of the slide plate assembly, the emergency slide plate (5) can enter a lower slide plate containing space after the lower slide plate is taken out, a through hole (9) is formed in the emergency slide plate (5) and communicates with an outlet of the upper slide plate (4), the through hole (9) is coaxially arranged with the outlet, and the diameter of the through hole (9) is larger than the diameter of the outlet.

2. The tundish nozzle maintenance device for steelmaking according to claim 1, characterized by: A pulling assembly (10) is slidably arranged on the emergency slide plate (5), and a falling prevention nut (13) is arranged on the pulling assembly (10) to prevent the pulling assembly (10) from falling off, and the sliding direction of the pulling assembly (10) is the same as the moving direction of the emergency slide plate (5).

3. The tundish nozzle maintenance device for steelmaking according to claim 2, characterized by: The pulling assembly (10) comprises two pull rods (12) which slide through the emergency slide plate (5) and are parallel to each other, the sliding direction of the pull rods (12) is the same as the moving direction of the emergency slide plate (5), one end of the pull rod (12) is provided with the falling prevention nut (13) which penetrates through the emergency slide plate (5), and the other end of the pull rod (12) is connected through a connecting rod (11).

4. The tundish nozzle maintenance device for steelmaking according to claim 1, characterized by: The emergency slide plate (5) comprises an integrated body (6) and a base (7), a through groove (8) is formed in the body (6) and extends along the moving direction of the emergency slide plate (5), the through hole (9) communicates with the through groove (8) and penetrates through the base (7).

5. The tundish nozzle maintenance device for steelmaking according to claim 4, characterized by: The length of the through groove (8) is 85-95 mm, the width of the through groove (8) is 55-65 mm, and the thickness of the through groove (8) is 7-12 mm.

6. The tundish nozzle maintenance device for steelmaking according to claim 4, characterized by: The length of the body (6) is 125-130 mm, the width of the body (6) is 85-95 mm, and the thickness of the body (6) is 30-35 mm.

7. The tundish nozzle maintenance device for steelmaking according to claim 1, characterized by: The edge of the blocking plate (3) is provided with an inclined surface.

8. The tundish nozzle maintenance device for steelmaking according to claim 1, characterized by: The diameter of the through hole (9) is 55-65 mm.

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