Opening and closing device for ladle nozzle
By designing an opening and closing device for the ladle nozzle, and utilizing a cylinder to drive the sliding plate and spring structure, the problem of poor sealing caused by thermal expansion and wear of the sliding nozzle was solved. This achieved tight control and leak prevention of molten steel, improved steelmaking safety, and reduced costs.
Patent Information
- Application Number
- CN202520538363.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-26
AI Technical Summary
In existing steelmaking processes, sliding gates may not seal properly due to thermal expansion and wear of machine parts, posing safety hazards and increasing costs.
Design a ladle nozzle opening and closing device that uses a cylinder to drive a sliding plate to move, combined with a spring and sealing ring structure, to achieve tight control and leak prevention of molten steel, including the mating of the contact plate and the sealing ring to prevent molten steel leakage.
It effectively prevents molten steel leakage, improves operational safety, and reduces costs.
Smart Images
Figure CN223902916U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to steelmaking technical field especially relates to a kind of opening and closing device of ladle nozzle. BACKGROUND
[0002] Sliding nozzle in steelmaking process is the control device of molten steel in continuous casting machine casting process, can accurately regulate the water flow from ladle to continuous casting tundish, make inflow and outflow molten steel reach balance, so that continuous casting operation is more easily controlled, indispensable part in smelting.In the operation process, due to the thermal expansion of machine parts, often occur not tight situation or wear greatly lead to upper and lower slide plate sealing not tight situation produce safety hazard and increase cost. SUMMARY
[0003] The utility model provides a kind of opening and closing device of ladle nozzle, to solve the deficiency existing in prior art.
[0004] The technical implementation scheme of the utility model is: a kind of opening and closing device of ladle nozzle, including upper nozzle, upper nozzle is set with upper runner, upper nozzle outer wall is provided with shell, shell bottom is set with discharge port, shell inner top is provided with upper slide plate, upper slide plate is provided with the through hole one communicated with upper runner, shell inner is provided with lower slide plate, lower slide plate is provided with the through hole two communicated with through hole one, lower slide plate bottom is provided with lower nozzle, lower nozzle is set with the lower runner of top with the through hole two and bottom with discharge port, shell inner is provided with the cylinder connected with the side wall of lower slide plate, cylinder drives lower slide plate to reciprocate horizontally relative to upper slide plate, lower nozzle is slidably connected with discharge pipe, spring one is arranged between discharge pipe and lower nozzle inside, discharge pipe top is provided with the abutment plate in the through hole two, abutment plate moves vertically relative to lower slide plate.
[0005] Preferably, lower nozzle is slidably connected with extension pipe, extension pipe is located between discharge pipe and lower nozzle, spring two is arranged between extension pipe top and lower nozzle inside, and extension pipe moves vertically relative to lower nozzle.
[0006] Preferably, the lower end of the extension pipe is hollow conical.
[0007] Preferably, the side wall of the lower nozzle port is provided with a sealing ring one, and the inner bottom of the shell near the discharge port is provided with a sealing ring two, and the sealing ring two and the sealing ring one are horizontally face-to-face.
[0008] The utility model has the following advantages: 1, the abutment plate of the utility model is tightly attached to the bottom surface of the upper slide plate under the action of the spring one, preventing the leakage of molten steel;
[0009] 2, the end of the extension pipe extending out of the discharge port is flush with the bottom of the shell, and the sealing ring one and the sealing ring two are connected, preventing the molten steel from seeping into the shell. Attached Figure Description
[0010] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.
[0011] In the attached diagram: 1-upper water inlet, 2-upper slide plate, 6-lower slide plate, 7-cylinder, 8-outer shell, 10-discharge port, 11-lower water inlet, 12-spring one, 13-spring two, 14-discharge pipe, 15-extension pipe, 16-contact plate, 17-sealing ring one, 18-sealing ring two. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0013] Example 1: An opening and closing device for a steel ladle nozzle, referring to... Figure 1 The device includes an inlet 1, an upper flow channel inside the inlet 1, a shell 8 on the outer wall of the inlet 1, a discharge port 10 at the bottom of the shell 8, an upper slide plate 2 at the top inside the shell 8, a through hole 1 communicating with the upper flow channel on the upper slide plate 2, a lower slide plate 6 inside the shell 8, a through hole 2 communicating with the through hole 1 on the lower slide plate 6, a lower inlet 11 at the bottom of the lower slide plate 6, a lower flow channel inside the lower inlet 11 communicating with the through hole 2 at the top and with the discharge port 10 at the bottom, a cylinder 7 inside the shell 8 connected to the right side of the lower slide plate 6, the cylinder 7 driving the lower slide plate 6 to move back and forth relative to the upper slide plate 2, a discharge pipe 14 slidably connected inside the lower inlet 11, a spring 12 between the discharge pipe 14 and the interior of the lower inlet 11, a contact plate 16 located in the through hole 2 at the top of the discharge pipe 14, the contact plate 16 moving up and down relative to the lower slide plate 6.
[0014] Preferably, an extension pipe 15 is slidably connected inside the drain outlet 11. The extension pipe 15 is located between the discharge pipe 14 and the drain outlet 11. A spring 13 is provided between the top of the extension pipe 15 and the inside of the drain outlet 11. The extension pipe 15 moves vertically relative to the drain outlet 11.
[0015] Preferably, the lower end of the extension tube 15 is arranged in a hollow conical shape.
[0016] Preferably, a sealing ring 17 is provided on the lower left side of the drain outlet 11, and a sealing ring 18 is provided at the bottom of the inner shell 8. The sealing ring 18 and the sealing ring 17 are arranged horizontally facing each other.
[0017] Working principle: in use, through the cylinder 7 drive down the slide plate 6 relative to the upper slide plate 2 horizontal reciprocating movement, the lower water inlet 11 with the lower slide plate 6 together, realize the control and cut-off of ladle discharge, through the resistance plate 16 under the action of spring 12 closely adhere to the bottom surface of the upper slide plate 2, prevent the leakage of liquid steel, at the same time, when the extension pipe 15 horizontal movement to the discharge port 10, under the action of spring 13 extension pipe 15 extend discharge port 10, extension pipe 15 end with the bottom of the shell 8 flush, and through the sealing ring 17 and sealing ring 18 butt joint, thereby prevent the steel liquid seep into the shell 8.
[0018] The above only for the embodiment of the present application, not therefore limit the patent range of the present application, any equivalent structure or equivalent process transformation, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A device for opening and closing a ladle nozzle, characterized in that: It includes an inlet (1), an upper flow channel inside the inlet (1), an outer shell (8) on the outer wall of the inlet (1), a discharge port (10) at the bottom of the outer shell (8), an upper slide plate (2) at the top inside the outer shell (8), a through hole (1) communicating with the upper flow channel on the upper slide plate (2), a lower slide plate (6) inside the outer shell (8), a through hole (2) communicating with the through hole (1) on the lower slide plate (6), and a outlet (11) at the bottom of the lower slide plate (6), with a through hole (2) at the top communicating with the through hole (2). The bottom channel is connected to the discharge port (10). A cylinder (7) connected to the side wall of the lower slide plate (6) is provided inside the outer shell (8). The cylinder (7) drives the lower slide plate (6) to move horizontally back and forth relative to the upper slide plate (2). A discharge pipe (14) is slidably connected inside the drain port (11). A spring (12) is provided between the discharge pipe (14) and the inside of the drain port (11). A contact plate (16) located in the through hole is provided at the top of the discharge pipe (14). The contact plate (16) moves vertically relative to the lower slide plate (6).
2. The opening and closing device for a ladle nozzle according to claim 1, characterized in that: An extension pipe (15) is slidably connected inside the drain outlet (11). The extension pipe (15) is located between the discharge pipe (14) and the drain outlet (11). A spring (13) is installed between the top of the extension pipe (15) and the inside of the drain outlet (11). The extension pipe (15) moves vertically relative to the drain outlet (11).
3. The opening and closing device for a ladle nozzle according to claim 2, characterized in that: The lower port of the extension tube (15) is set in a hollow cone shape.
4. The opening and closing device for a ladle nozzle according to claim 1, characterized in that: A sealing ring 1 (17) is provided on the side wall of the drain outlet (11), and a sealing ring 2 (18) is provided on the bottom of the outer shell (8) near the discharge port (10). The sealing ring 2 (18) and the sealing ring 1 (17) are arranged horizontally facing each other.