Protective device for accident flashboard oil cylinder of large round billet tundish car

Abstract

The utility model relates to a protective device for an accident flashboard oil cylinder of a large round billet tundish car, and belongs to the technical field of hydraulic equipment in the metallurgical industry. Comprising a heat insulation plate, a plate clamping unit is arranged on the heat insulation plate, and an oil cylinder penetrates through the plate clamping unit and is arranged above the heat insulation plate; and the heat insulation plate moves along the cylinder body of the oil cylinder, so that the heat insulation plate moves to the tail part of the oil cylinder or the head part of the oil cylinder. The clamping plate unit comprises a plurality of clamping plates arranged at intervals, and the two ends of each clamping plate are fixed to the heat insulation plate. And a handle is arranged on one clamping plate. And the clamping plate is omega-shaped. The oil cylinder is simple in structure, heat radiation of high-temperature molten steel is isolated through the heat insulation plate, heat radiation on the oil cylinder when a casting blank starts to pour the molten steel is reduced, and the service life of the oil cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to an accident gate oil cylinder protection device for a large round billet tundish car, belonging to the technical field of hydraulic equipment in the metallurgical industry. Background Art

[0002] The gate cylinder is located below the tundish and above the molten steel surface. When pouring, the high-temperature molten steel flows into the copper tube of the crystallizer. From the time of pouring the molten steel to the time of adding the protective slag, the cylinder is directly radiated by the molten steel, especially the large round billet, which has a larger radiation area. The radiation time of φ1000 pouring is about 8 minutes, and the maximum surface temperature of the cylinder reaches 300°. The heat radiation time of φ1200 pouring is about 12 minutes, and the surface temperature of the cylinder is higher, about 350°. The temperature condition for long-term use of high-temperature resistant fluororubber used in cylinder seals is below 250°. When the surface temperature of the cylinder is 300°, the cylinder seal rubber can only be used for a short time. After the 0# continuous casting machine was put into production, the φ1200 was used for two pourings, which caused the hydraulic cylinder seal to age and leak oil, thus affecting the normal operation of the equipment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a large round billet tundish car accident gate cylinder protection device for the above-mentioned prior art, which has a simple structure, reduces the heat radiation to the cylinder when the billet is poured with molten steel, and increases the service life of the cylinder.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problem is: a large round billet intermediate ladle car accident gate cylinder protection device, including a heat insulation plate, a clamping plate unit is arranged on the heat insulation plate, the cylinder passes through the clamping plate unit and the cylinder is arranged above the heat insulation plate; the heat insulation plate moves along the cylinder body, so that the heat insulation plate moves to the tail of the cylinder or the heat insulation plate moves to the head of the cylinder.

[0005] The card board unit includes a plurality of card boards arranged at intervals, and two ends of the card boards are fixed to the heat insulation board.

[0006] A handle is provided on the card board.

[0007] The card plate is Ω-shaped.

[0008] Compared with the prior art, the utility model has the advantages of: a large round billet tundish car accident gate cylinder protection device, which has a simple structure, isolates the heat radiation of high-temperature molten steel through the insulation plate, reduces the heat radiation to the cylinder when the billet is poured with molten steel, and increases the service life of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a top view of an accident gate cylinder protection device for a large round billet tundish car according to an embodiment of the utility model;

[0010] Figure 2 This is a front view of an accident gate cylinder protection device for a large round billet tundish car according to an embodiment of the utility model;

[0011] Figure 3 It is a schematic diagram of the separation of the oil cylinder and the gate mechanism;

[0012] In the figure, 1 is a gate mechanism, 2 is an oil cylinder, 3 is a heat insulation board, 4 is a clamping plate, 5 is a handle, and 6 is a hexagonal bolt. DETAILED DESCRIPTION

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] like Figure 1 , 2 As shown, in this embodiment, a large round billet tundish car accident gate cylinder protection device includes a heat insulation board 3, on which two Ω-shaped clamping plates 4 are arranged at intervals along the length direction of the heat insulation board 3, and the two ends of the clamping plates 4 are respectively fixed to the heat insulation board 3 by hexagonal bolts 6. The oil cylinder 2 passes through the two clamping plates 4, so that the oil cylinder 2 is arranged above the heat insulation board 3, ensuring that there is a gap between the oil cylinder 2 and the oil cylinder 2, so that the oil cylinder 2 can move flexibly. A handle 5 is set on the top of the clamping plate 4, and the handle 5 is pushed so that the heat insulation board 3 can move along the cylinder body of the oil cylinder 2, so that the heat insulation board 3 is moved to the tail of the oil cylinder, the heat insulation board is exposed at the installation position of the oil cylinder head, or the heat insulation board is moved to the head of the oil cylinder.

[0015] like Figure 3 As shown, when in use, push the handle to move the heat insulation board to the tail of the oil cylinder to expose the installation position of the oil cylinder head, and then insert the oil cylinder into the gate mechanism; then push the handle to move the heat insulation board to the oil cylinder head, that is, the oil cylinder piston rod and the sealing ring are isolated from the heat radiation of the high-temperature molten steel by the heat insulation board, so that the surface temperature of the oil cylinder does not exceed 180°, which reduces the heat radiation to the oil cylinder when the casting starts to pour molten steel, and increases the service life of the oil cylinder.

[0016] The present application has a simple structure, and the heat radiation of high-temperature molten steel is isolated by the heat insulation plate, thereby reducing the heat radiation to the oil cylinder when the ingot is poured with molten steel, and prolonging the service life of the oil cylinder.

[0017] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A protective device for the accident gate cylinder of a large round billet tundish car, characterized in that: It comprises a heat insulation board, a clamping board unit is arranged on the heat insulation board, the oil cylinder passes through the clamping board unit and the oil cylinder is arranged above the heat insulation board; the heat insulation board moves along the oil cylinder body so that the heat insulation board moves to the tail of the oil cylinder or moves to the head of the oil cylinder.

2. The large round billet tundish car emergency gate cylinder protection device according to claim 1 is characterized by: The card board unit includes a plurality of card boards arranged at intervals, and two ends of the card boards are fixed to the heat insulation board.

3. The large round billet tundish car emergency gate cylinder protection device according to claim 2 is characterized by: A handle is provided on the card board.

4. The large round billet tundish car emergency gate cylinder protection device according to claim 2 is characterized by: The card plate is Ω-shaped.

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