JP2579586Y2 - Tundish tilting device for continuous casting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tundish tilting device in a continuous casting facility.

[0002]

2. Description of the Related Art As is well known, a tundish in a continuous casting facility is a refractory-lined container, which is called an intermediate ladle and is disposed between a ladle and a mold. ing. And, when using this continuous casting equipment, when performing different types of steel operations or multiple casting operations, the refractory of the tundish just below the ladle is damaged, the nozzle for the tundish is melted, and furthermore, the tundish nozzle is damaged. Since the slag accumulates more than necessary, the molten steel in the mold is quickly replaced with a new tundish before it hardens.

For this purpose, two traveling rails are laid on a work floor sandwiching the opening of the mold at right angles to the travel of the strands, and usually two tundish cars are mounted on the traveling rail.
Is divided into right and left. Therefore, if one of the tundishes in use finishes pouring for the above-described reason, the tundish car carrying the used tundish is immediately retracted and moved to the tundish standby position. And a tundish car equipped with a new tundish ready for the other.
Is moved onto the mold, and then the pouring operation is performed.

[0004] Since a small amount of molten steel containing a large amount of slag remains in the used tundish described above (this is called residual steel), after the residual steel is discharged by a tundish tilting device, the next tundish is discharged. Prepare for pouring work. By the way, the method of tilting such a tundish conventionally includes
The following are broadly known. That is,
A) The tundish car is provided with a tundish tilting device, and tilts on the treadish car's running rail. B) The tundish car travels perpendicular to the running rail. A road is provided, and a tundish tilting cart is run on the traveling path, and the tundish tilting cart is tilted by the tundish tilting cart (for example, the actual open flat 3-12).
0947, Japanese Utility Model Laid-Open No. 4-26653, etc.)
Etc. are known.

[0005] However, in the case of the former A), the tundish cannot be tilted by 90 ° or more.
The residual steel cannot be completely discharged, and the residual steel discharge port moves in the horizontal direction as the tilt angle changes, so that a gutter is required, and the cylinder for tilting the tundish becomes long. There was a problem.

[0006] In the case of B), especially in the above-mentioned publication, a separately provided traveling path is used as a ceiling traveling path, and a tundish tilting cart (trolley) is provided on the ceiling traveling path. The tundish is lifted by the tundish tilting cart, moved to a residual steel discharge position provided at a position different from the tundish car stop position, and tilted there. Moving from the rail to another tilting position increases the time from casting to tilting, lowering the temperature of the remaining steel in the tundish, and may cause the remaining steel to begin to solidify. If the residual steel is discharged, the refractory of the lining will be damaged.Since the residual steel discharge position is set at a position different from the traveling rail position of the tundish car, the casting yard becomes wider and the existing continuous casting. Facility There is can not be adopted, etc. problem.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve such a problem, and the gist of the present invention is that a tundish car laid on a floor with an opening of a mold interposed therebetween. In a continuous casting facility in which a tundish standby position is provided on the extension of the traveling rail for use and a waste receiving pot is provided immediately below the traveling rail at the tundish standby position, the tundish standby position A traveling path for a trolley on which the tundish tilting cart travels is provided above, and the tundish tilting cart is hung on a tundish trunnion to lift the tundish.
And a first and second hoisting device having a second hook and a second hook, and on the extension of the traveling rail for the tundish car,
A tundish tilting device for a continuous casting facility, wherein a place for retracting a tundish car during a tundish tilting operation is provided.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. 1A is a plan view of a casting jar to which the present embodiment is applied, FIG. 1B is an explanatory view of the tundish tilting in FIG. 1A, and FIG. FIG. 3 is a detailed view in which the tundish is mounted on a tundish car, FIG. 3 is an explanatory view in which the tundish in FIG. 2 is lifted, and FIG. 4 is an explanatory view in which the tundish in FIG. 3 is tilted.

The embodiment of the present invention is suitable for a multi-strand continuous casting facility that performs a multiple casting operation. First, the layout of the casting yard will be described. FIG.
1A and 1B, reference numeral 1 denotes a work floor, on which a mold 2 is opened. This Mold 2
Is the direction a in the figure. A pair of running rails 4 and 4 for running the tundish car 3 orthogonally to the strand traveling direction a with the opening of the mold 2 interposed therebetween are laid on the work floor 1. On the extension of the running rail 4, a tundish standby position 6 for maintenance and inspection such as repairing the tundish 5 is provided.
At the tundish standby position 6, a tundish sliding nozzle exchanging device, a preheating device (all not shown), and the like are provided. Here, at the tundish standby position 6, a tundish tilting device 7 having the following equipment is provided.

In FIG. 2, a gate-shaped girder 8 is provided on the work floor 1 so as to straddle the traveling rails 4 and 4 and is orthogonal to the traveling rails 4. A bogie traveling path 9 is provided on a horizontal portion of the portal girder 8. The tundish tilting bogie 10 runs on the bogie traveling path 9. Therefore, the traveling path 9 for the carriage is the traveling rail 4
Is orthogonal to. The tundish tilting carriage 10 is provided with two first and second hooks 11 and 12 each, and these hooks 11 and 12 are connected to a wire rope 13.
Via the first and second hoisting devices 14, 15 respectively
To ascend and descend. In the figure, 16
Indicates a turning sheave.

On the other hand, on both sides of the end of the tundish 5 (the side parallel to the strand advancing direction a), the first tundish for hooking the hooks 11 and 12 respectively.
And second trunnions 17 and 18 are protruded. Further, between the pair of traveling rails 4, 4, below the surface of the work floor 1, rails 19, 19 for pot discharging carts are laid in parallel with the traveling rail 4, and the pots are laid down. A pot discharge truck 21 having a waste receiving pot 20 mounted thereon travels on the discharge truck rail 19. The upper surface of the waste receiving pot 20 is located below the work floor 1 so as not to hinder the traveling of the tundish car-3.

Next, the operation of this embodiment will be described. When the tundish car-3 loaded with the used tundish 5 arrives at the tundish standby position 6, the first and second hooks of the tundish tilting cart 10 waiting at a position where the tundish 5 can be lifted. 11 and 12 are lowered, and the first and second trunnions 1 for tundish
The tundish 5 is hung to the positions 7 and 18, respectively, and lifted to a position where the tundish 5 does not interfere with the traveling of the tundish car-3.

Next, as shown in FIG. 1B, the empty tundish car-3 is retracted between the mold 2 and the tundish standby position 6 (the tundish standby position 6). The second hook 12 may be lowered, the tundish 5 may be unbalanced, and the tundish may be tilted while the second trunnion 18 at the front side of the tundish 5 may be lowered. Trolley 10
To tilt the tundish 5 while keeping the discharge port of the tundish 5 from coming off the opening of the waste receiving pot 20. Therefore, the remaining steel in the tundish 5 can be discharged to the waste receiving pot 20 immediately below. Maintenance such as replacement of the sliding nozzle for tundish and repair of refractory is performed with the tundish 5 from which the residual steel has been discharged as it is. Thereafter, the second hook 12 is raised to return the tundish 5 to the horizontal state. afterwards,
After the retracted tundish car-3 is moved to the tundish standby position 6, the first and second hooks 11, 1 are moved.
2 is lowered at the same time, and the tundish 5 is mounted on the tundish car-3. Then, Tundishka-3
And the first and second hooks 11, 12
The first and second hooks 11 and 12 are removed from the first and second trunnions 17 and 18 for the tundish by slightly raising and lowering.

[0014]

According to the present invention, as soon as the used tundish reaches the tundish standby position, which is the remaining steel discharging position, after traveling on the traveling rail, the first and second tundish tilting bogies are moved. After lifting the tundish with two hooks and retracting the tundish car from the place, the tundish is tilted, so that the remaining steel can be discharged at the shortest distance from the mold before the remaining steel solidifies,
Damage to the refractory lining of the tundish can be prevented as much as possible. As a result, it is convenient for an operation in which the same tundish is used many times. Therefore, even if the tundish or tundish car is configured in a small number, the multiple casting operation and the operation of different steel types can be performed without any trouble. Also,
Since the first and second hooks are hooked on the first and second trunnions and tilt, the residual steel can be adjusted to be discharged to the center of the waste pot, and the running rail and the like are not stained. In addition, it can be easily adopted for existing equipment.

[Brief description of the drawings]

FIG. 1A is a plan view of an embodiment of the present invention,
(B) is an operation explanatory view of (A).

FIG. 2 is a detailed view taken along line A in FIG. 1;

FIG. 3 is an operation explanatory view in FIG. 2;

FIG. 4 is an operation explanatory diagram in FIG. 3;

[Explanation of symbols]

1. Operating floor, 2. Mold, 3. Tundish car,
Reference numeral 4: running rail, 5: tundish, 6: tundish standby position, 7: tundish tilting device, 10: tundish tilting carriage, 11: first hook, 12: second
Hook, 17: first trunnion, 18: second trunnion, 20: waste receiving pot

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Sakata 5-2, Sokai-cho, Niihama-shi, Ehime Japan Sumitomo Heavy Industries Niihama Works (56) References JP-A-4-75753 (JP, A) Shokai 51-100937 (JP, A) JP-A 6-15851 (JP, U) JP-A 3-120947 (JP, U) JP-A 59-173681 (JP, U) (58) Fields surveyed (58) Int.Cl. ⁶ , DB name) B22D 11/10 310

Claims (1)

(57) [Scope of request for utility model registration] A tundish standby position is provided on an extension of a tundish car traveling rail laid on the floor across an opening of a mold, and the traveling rail at the tundish standby position is provided. In a continuous casting facility provided with a waste receiving pot just below, a traveling path for a truck for traveling a tundish tilting cart is provided above the tundish standby position, and the tundish tilting cart has a tundish First and second hoisting devices having first and second hooks for hanging a tundish by hanging on a trunnion are provided, and a tundish tilting operation is performed on an extension of the tundish car traveling rail. A tundish tilting device for a continuous casting facility, wherein a place for retracting a tundish car is provided therein.