Anti-splashing mechanism for steel ladle sliding nozzle

Abstract

The anti-splashing mechanism comprises a sliding nozzle body, a lower sliding plate, a lower nozzle, a large protective plate and a small protective plate, a long flat hole is formed in the large protective plate, a transverse sliding rail is installed on the front face of the large protective plate, two side protective plates are arranged on the front face of the large protective plate, sliding connecting pieces are installed at the top ends of the two side protective plates, and the sliding connecting pieces are connected with the sliding connecting pieces. The two sliding connecting pieces are slidably connected with the transverse sliding rail, inclined guide plates are installed at the bottoms of the two side protection plates, the two inclined guide plates are close to each other, a double-thread screw rod is connected between the two side protection plates in a threaded mode, an arc-shaped guide plate is arranged in the long flat hole, guide sliding rods are installed on the two sides of the arc-shaped guide plate, and the guide sliding rods are arranged on the two sides of the arc-shaped guide plate. The guide sliding rods penetrate through the side protection plates and are in sliding connection with the side protection plates. The device has the beneficial effects that molten steel is prevented from being splashed on the body of a worker, the injury to the operator is avoided, the safety is improved, the molten steel and waste slag can be recycled, and the resource reutilization can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of ladle sliding nozzles, in particular to an anti-splashing mechanism for a ladle sliding nozzle. Background Art

[0002] The sliding nozzle is a control device for molten steel during the casting process of the continuous casting machine. It can accurately adjust the water flow from the ladle to the continuous casting tundish to achieve a balance between the inflow and outflow of molten steel, thereby making the continuous casting operation easier to control. It is an indispensable part of smelting. The sliding nozzle is generally composed of a drive device, a mechanical part and a refractory part (i.e., upper and lower slides, and a lower nozzle).

[0003] The utility model with application number CN201120537504.9 discloses a ladle sliding nozzle mechanism protection plate. By installing a protection plate outside the sliding nozzle mechanism, molten steel can be effectively prevented from splashing onto the sliding nozzle mechanism, thereby avoiding burning of the sliding nozzle body and the nozzle eye.

[0004] The above-mentioned device is protected by a protective plate, which is not easy to replace after being burned. It can only prevent molten steel from splashing onto the sliding nozzle. When pouring molten steel at the sliding nozzle, molten steel will splash, and the molten steel is easy to splash onto the staff, easily causing physical harm to the staff. The device has low integrity, and the splashed molten steel and waste slag cannot be recovered, resulting in a waste of resources.

[0005] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0006] The utility model aims to solve the above problems and designs a splash-proof mechanism for a ladle sliding nozzle.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A splash-proof mechanism for a ladle sliding water nozzle comprises a sliding water nozzle body, a lower slide plate, a lower water nozzle, a large guard plate and a small guard plate, the large guard plate being rotatably connected to the sliding water nozzle body via a rotating shaft, a long flat hole is provided on the large guard plate, a transverse slide rail is installed on the front of the large guard plate, two side guard plates are provided on the front of the large guard plate, the two side guard plates are respectively located on the left and right sides of the long flat hole, sliding connectors are installed on the top of the two side guard plates, the two sliding connectors are slidably connected to the transverse slide rails, oblique guide plates are installed on the bottom of the two side guard plates, the two oblique guide plates are close to each other, a double-headed threaded screw is threadedly connected between the two side guard plates, an arc guide plate is provided in the long flat hole, guide slide rods are installed on both sides of the arc guide plate, the guide slide rods pass through the side guard plates and are slidably connected to the side guard plates.

[0009] Furthermore, a circular hole is provided at the center of the small guard plate, the diameter of the circular hole is the same as the diameter of the water outlet, two fixed slots are provided on the front of the lower slide plate, and fixed cards are installed at the upper and lower ends of the small guard plate, and the fixed cards and the fixed slots are engaged with each other.

[0010] Furthermore, the front end of the arc guide plate is tilted downward, and an inverted U-shaped strip is installed on the back of the large guard plate. The open end of the inverted U-shaped strip fits with the arc guide plate, and the inner side of the inverted U-shaped strip fits with the small guard plate.

[0011] Furthermore, a universal ball is provided in the transverse slide rail, and the sliding connector is in contact with the universal ball at one end away from the side guard plate. The double-headed threaded screw is provided with two thread grooves with opposite spiral directions. The two side guard plates are respectively threadedly connected to the two thread grooves, and rotating knobs are installed at both ends of the double-headed threaded screw.

[0012] Furthermore, the inverted U-shaped strips, side guard plates, inclined guide plates and arc guide plates are all made of refractory materials.

[0013] Compared with the prior art, this technical solution has the following beneficial effects:

[0014] The side guard plates can block the splashing molten steel to prevent it from splashing onto the workers and causing harm to the operators, thus improving safety. The molten steel splashing onto the side guard plates will slide onto the two inclined guide plates, and the molten steel and waste slag will remain on the two inclined guide plates. The molten steel and waste slag can be recycled, thus realizing resource reuse.

[0015] The side guard plate is connected to the horizontal slide rail through a sliding connector, the rear end of the side guard plate is fitted with the surface of the large guard plate, and the small guard plate is clamped on the sliding plate through a fixed card plate and a fixed card slot, which is convenient for installation and disassembly, maintenance and replacement, and improves work efficiency;

[0016] The sliding nozzle body and the drain nozzle are protected by a large guard plate, a small guard plate, an arc guide plate and an inverted U-shaped strip to prevent molten steel from splashing onto the sliding nozzle body, avoid burning the drain nozzle, and increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a splash-proof mechanism for a ladle sliding nozzle.

[0018] Figure 2 This is the front view of the large guard plate.

[0019] Figure 3 A magnified cross-sectional view of the side of the large guard plate.

[0020] Figure 4 This is an enlarged rear view of the small guard plate.

[0021] In the figure: 1. Sliding nozzle body; 2. Lower slide plate; 3. Lower nozzle; 4. Large guard plate; 5. Small guard plate; 6. Long flat hole; 7. Horizontal slide rail; 8. Side guard plate; 9. Sliding connector; 10. Oblique guide plate; 11. Double-headed threaded screw; 12. Arc guide plate; 13. Guide slide bar; 14. Round hole; 15. Fixed slot; 16. Fixed card plate; 17. Inverted U-shaped bar; 18. Universal ball bearing; 19. Turning knob. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] The utility model provides Figure 1-4 The splash-proof mechanism for a ladle sliding water nozzle shown in the figure comprises a sliding water nozzle body 1, a lower slide plate 2, a lower water nozzle 3, a large guard plate 4 and a small guard plate 5. The large guard plate 4 is rotatably connected to the sliding water nozzle body 1 through a rotating shaft. A long flat hole 6 is provided on the large guard plate 4. A transverse slide rail 7 is installed on the front of the large guard plate 4. Two side guard plates 8 are provided on the front of the large guard plate 4. The two side guard plates 8 are respectively located on the left and right sides of the long flat hole 6. Sliding connectors 9 are installed on the top of the two side guard plates 8. The two sliding connectors 9 are slidably connected to the transverse slide rail 7. An oblique guide plate 10 is installed at the bottom of the two side guard plates 8. The two oblique guide plates 10 are close to each other. A double-headed threaded screw 11 is threadedly connected between the two side guard plates 8. An arc guide plate 12 is provided in the long flat hole 6. Guide slide rods 13 are installed on both sides of the arc guide plate 12. The guide slide rods 13 pass through the side guard plates 8 and are slidably connected to the side guard plates 8.

[0025] The lower slide plate 2 and the lower water outlet 3 are driven to move and open or close by the hydraulic drive device on the sliding water outlet body 1, which belongs to the prior art and will not be described in detail. The two side guard plates 8 are connected to the transverse slide rail 7 through the sliding connector 9. The two side guard plates 8 are located on the left and right sides of the long flat hole 6, and the rear ends of the two side guard plates 8 are in contact with the surface of the large guard plate 4. The arc guide plate 12 is located in the long flat hole 6, which is convenient for installation and disassembly of the side guard plates 8 and the arc guide plate 12, and is convenient for maintenance and replacement, thereby improving work efficiency. The two side guard plates 8 are moved closer to or farther away from each other by rotating the double-headed threaded screw 11. When pouring molten steel, the two side guard plates 8 are close to each other, and the lower ends of the two oblique guide plates 10 are fitted together. The side guard plates 8 are used to block the splashing molten steel to prevent the molten steel from splashing onto the staff and causing harm to the operators, thereby improving safety. The molten steel splashed on the side guard plates 8 will slide onto the two oblique guide plates 10, and the molten steel and waste slag will remain on the two oblique guide plates 10. After the pouring is completed, a recovery bucket can be placed under the two side guard plates 8, and the two side guard plates 8 can be moved away from each other by rotating the double-headed threaded screw 11. The molten steel and waste slag on the two side guard plates 8 are collected in the recovery bucket, so that the molten steel and waste slag can be recycled, thereby realizing resource recycling.

[0026] Refer to the instruction manual Figure 1 And the instruction manual Figure 4 A circular hole 14 is provided at the center of the small guard plate 5, and the diameter of the circular hole 14 is the same as the diameter of the water outlet 3. Two fixed card slots 15 are provided on the front of the lower slide plate 2. Fixed card plates 16 are installed at the upper and lower ends of the small guard plate 5. The fixed card plates 16 and the fixed card slots 15 are engaged with each other.

[0027] The small guard plate 5 is engaged on the lower slide plate 2 through the fixed clamping plate 16 and the fixed clamping groove 15, which is convenient for installing and disassembling the small guard plate 5 and replacing the small guard plate 5. The small guard plate 5 prevents molten steel from flowing into the lower slide plate 2, avoids burning the water outlet 3, and improves the service life.

[0028] Refer to the instruction manual Figure 1 , Instruction Manual Figure 2 And the instruction manual Figure 3 The front end of the arc guide plate 12 is tilted downward, and an inverted U-shaped strip 17 is installed on the back of the large guard plate 4. The open end of the inverted U-shaped strip 17 fits with the arc guide plate 12, and the inner side of the inverted U-shaped strip 17 fits with the small guard plate 5.

[0029] The front end of the arc guide plate 12 is tilted downward, and the molten steel splashed on the arc guide plate 12 flows onto the inclined guide plate 10. The small guard plates 5 are sealed by the arc guide plate 12 and the inverted U-shaped strip 17 to prevent the molten steel from splashing onto the sliding nozzle body 1 and damaging the sliding nozzle body 1.

[0030] Refer to the instruction manual Figure 2 And the instruction manual Figure 3 A universal ball 18 is arranged in the transverse slide rail 7, and the end of the sliding connector 9 away from the side guard plate 8 contacts the universal ball 18. The double-threaded screw rod 11 is provided with two thread grooves with opposite spiral directions. The two side guard plates 8 are respectively threadedly connected to the two thread grooves. Rotating knobs 19 are installed at both ends of the double-threaded screw rod 11.

[0031] The double-threaded screw 11 can be easily rotated by turning the knob 19, and the side guard plate 8 drives the sliding connector 9 to slide along the transverse slide rail 7. The universal ball 18 facilitates the sliding of the sliding connector 9, thereby improving the smoothness.

[0032] Refer to the instruction manual Figure 3 The inverted U-shaped strip 17, the side guard plate 8, the oblique guide plate 10 and the arc guide plate 12 are all made of refractory materials.

[0033] The refractory material has a long service life and can be used for a long time.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A splash prevention mechanism for a ladle sliding nozzle, comprising a sliding nozzle body (1), a lower slide plate (2), a lower nozzle (3), a large guard plate (4) and a small guard plate (5), wherein the large guard plate (4) is rotatably connected to the sliding nozzle body (1) via a rotating shaft, and a long flat hole (6) is provided on the large guard plate (4), characterized in that: A transverse slide rail (7) is installed on the front of the large guard plate (4), and two side guard plates (8) are arranged on the front of the large guard plate (4). The two side guard plates (8) are respectively located on the left and right sides of the long flat hole (6). Sliding connectors (9) are installed on the top of the two side guard plates (8). The two sliding connectors (9) are slidably connected to the transverse slide rail (7). An oblique guide plate (10) is installed on the bottom of the two side guard plates (8). The two oblique guide plates (10) are close to each other. A double-headed threaded screw (11) is threadedly connected between the two side guard plates (8). An arc guide plate (12) is arranged in the long flat hole (6). Guide slide bars (13) are installed on both sides of the arc guide plate (12). The guide slide bars (13) pass through the side guard plates (8) and are slidably connected to the side guard plates (8).

2. The splash prevention mechanism for a ladle sliding nozzle according to claim 1, characterized in that: A circular hole (14) is provided at the center of the small guard plate (5), the diameter of the circular hole (14) being the same as the diameter of the water outlet (3), two fixed slots (15) being provided on the front of the lower slide plate (2), and fixed clips (16) being installed at the upper and lower ends of the small guard plate (5), the fixed clips (16) being engaged with the fixed slots (15) mutually.

3. The splash prevention mechanism for a ladle sliding nozzle according to claim 1, characterized in that: The front end of the arc-shaped guide plate (12) is tilted downward, and an inverted U-shaped strip (17) is installed on the back of the large guard plate (4). The open end of the inverted U-shaped strip (17) is in contact with the arc-shaped guide plate (12), and the inner side of the inverted U-shaped strip (17) is in contact with the small guard plate (5).

4. The splash prevention mechanism for a ladle sliding nozzle according to claim 1, characterized in that: A universal ball (18) is arranged in the transverse slide rail (7), and one end of the sliding connection member (9) away from the side guard plate (8) contacts the universal ball (18). Two thread grooves with opposite spiral directions are arranged on the double-threaded screw rod (11), and the two side guard plates (8) are respectively threadedly connected to the two thread grooves. Rotating knobs (19) are installed at both ends of the double-threaded screw rod (11).

5. The splash prevention mechanism for a ladle sliding nozzle according to claim 3, characterized in that: The inverted U-shaped strip (17), the side guard plate (8), the inclined guide plate (10), and the arc-shaped guide plate (12) are all made of refractory material.

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