JP2000297312A - Molten metal carrying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately put a molten iron ladle at a receiving seat in a truck after rightly standing by correcting an inclined posture of the molten iron ladle inclined caused by stuck material, by fitting ladle receiving seats at the lower part of trunnion shafts arranged on the barrel part of the molten iron ladle and arranging inclination correcting means for slidingly moving with the receiving seat of the truck at both sides. SOLUTION: The molten iron ladle holding the molten iron is raised by hooking a hook 12 in a main hoist 11 of a crane to the trunnion shaft arranged on the barrel part and tilted and the molten iron is charged into a converter from a charging hole 15 and refined. Thereafter, the molten iron ladle is lowered and the ladle receiving seats 10 fitted to the lower part of the trunnion shafts are put on the receiving seat 8 on the truck 6 and further, the molten iron ladle is carried to a molten iron receiving position. At both sides of the ladle reciving seat 10, a roller 19 for correcting the inclination and a roller 20 for regulating the position, are arranged. When the molten iron ladle after charging the molten iron is put on the truck 6, the molten iron ladle inclined caused by metal and slag stuck to the charging hole 15, etc., are slidingly moved to the receiving seat 8 and guide posts 18 with the rollers 19 to correcting the inclination and the rollers 20 for regulating the position to correct the inclination.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for charging molten iron conveyed from a blast furnace in a hot metal ladle into a converter for intermediate refining, and for producing and refining molten steel that has been subjected to intermediate refining. The present invention relates to a hot metal transfer device used when recharging a furnace.

[0002]

2. Description of the Related Art FIG. 7 shows an example of a conventional hot metal transfer apparatus. The hot metal ladle 1 is for charging hot metal conveyed from a blast furnace by a mixed iron wheel 2 to a converter 4 having a tapping port 5 by a hot metal crane.

That is, the hot metal ladle 1 is charged with hot metal from a mixed iron wheel 2 while being upright on the ground, transported to the upper part of a converter 4 by a hot metal crane 3, and adjusted to the tilt angle of the converter 4. By inclining the hot metal 1, the hot metal is charged into the converter 4, and after the charging is completed, the hot metal ladle 1 is returned to the original position and waits for the next hot metal reception (a to 7 in FIG. 7). c).

As shown in FIG. 6, a recent hot metal transfer apparatus receives hot metal intermediately refined in a converter 4 from a tapping port 5 into a hot metal ladle 1, and receives the hot metal for refining. The hot metal ladle 1 is used to recharge the steel melted into the converter once again (see Japanese Patent Application Laid-Open No. 6-346129).

That is, the hot metal ladle 1 is loaded on the bogie 6 after charging the hot metal into the converter 4, passes under the converter 4,
The molten steel that has been intermediately refined in the converter 4 is tilted in the converter 4 by moving the molten steel from the tapping hole 5 of the converter 4 to a position where the molten steel can be received. To steel.
Then, after the steel receiving is completed, the steel is returned to the converter charging side, subjected to the waste treatment and the addition treatment, and then charged again into the converter 4 by the hot metal crane 3 (in the order of a to g in FIG. 6). ).

FIG. 5 is a schematic view showing a conventional hot metal conveying apparatus.

In the conventional hot metal transfer apparatus, the hot metal ladle 1 is mounted on the bogie 6 after charging into the converter 4, and the hot metal ladle 1 is inserted through the bogie 6 to pass below the converter 4. And a pair of receiving seats 8 are provided on the upper surface of the frame of the notch 7. The hot metal pot 1 is provided with a pan receiver 10 below the trunnion shaft 9.

[0008] The hot metal ladle 1 in which the trunnion shaft 9 of the hot metal ladle 1 is hooked by the hook 12 of the main winding 11 of the crane is lowered,
The attitude of the hot metal ladle 1 is maintained by engaging the pan receiver 10 of the hot metal ladle 1 with the seat 8 of the bogie 6.

[0009]

In the conventional hot metal transfer device, the auxiliary winding 14 of the auxiliary winding metal 13 is loosened and the hook 12
Even if the hot metal pot 1 is suspended in the return state, the trunnion shaft 9
And the deposit 16 such as sliver or slag adhering to the charging entrance 15 which is a factor of asymmetry with respect to
As a result, the hot metal ladle 1 is tilted without being completely erected, and the lowermost portion of the hot metal ladle 1 contacts and interferes with the ground before the hot metal ladle 1 is seated on the bogie 6, so that the hot metal ladle 1 can be properly moved 6, there is a problem that the movement of the hot metal pot 1 is hindered.

[0010] The present invention provides a hot metal transfer device capable of correcting the inclination of the hot metal pot to erect the hot metal pot.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a reciprocating bogie having a notch for inserting a hot metal ladle and a pair of seats provided on the upper surface of a frame of the notch, and a hot metal loading machine at an upper end of the hot metal ladle. Trunnion shaft at the entrance and body, auxiliary tilting hardware at the lower end,
And a hot metal pot provided below the trunnion shaft and having a pan seat that engages with the seat of the bogie, in which the hot metal pan slides with the seat of the bogie to incline the hot metal pan. Is provided.

Further, according to the present invention, it is possible to provide a tilt correcting means for correcting the tilt of the hot metal pot by sliding on the side of the hot iron pot with the seat of the bogie.

Further, the present invention provides a tilt correcting roller, a position regulating roller provided on a side portion of a receiver of a hot metal ladle, a roller receiving surface provided on a receiver of a bogie, and a tilt correcting device comprising a guide post. It is also possible to adopt a configuration having means.

Further, the present invention can also be an inclination correcting means comprising an inclination correcting roller provided below the side surface of the hot metal pot and a roller receiving surface provided on a seat of the bogie.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 show an embodiment of a hot metal transfer apparatus according to the present invention.

The bogie 6 has a notch 7 for inserting the hot metal ladle 1 and a pair of seats 8 on the upper surface of a frame 17 of the notch 7.
The receiving seat 8 has a guide post 18 so as to reciprocate on a track.

The hot metal ladle 1 has a hot metal charging inlet 15 at its upper end,
A trunnion shaft 9 is provided on the body, and a tilt correcting means including a tilt correcting roller 19 and a position regulating roller 20 is provided at a lower end portion below the trunnion shaft 9, and a pan receiver 10 which engages with the receiver 8 of the bogie 6. are doing.

In this embodiment, the inclination correcting means is the inclination correcting roller 19 and the position regulating roller 20, and the pair of receiving seats 8 and the guide posts 18 of the carriage 6 are configured to slide. As the inclination correcting means, the inclination correcting roller 19 or the position regulating roller 20 can be used alone.

In the present embodiment, when the hot metal ladle 1 descends, a deposit such as metal or slag adheres to the charging port 15 of the hot metal ladle 1 so that the attitude of the hot metal ladle 1 is greatly inclined. Even if there is, the inclination correcting roller 19 is
By sliding on the top, the hot metal ladle 1
The hot metal ladle 1 is rotated in the direction of erecting it. Further, at this time, the position regulating roller 20 provided on the hot metal pot 1 slides along the guide post 18, so that the hot metal pot 1 can be maintained in an upright state.

FIGS. 3 and 4 show another embodiment of the present invention.

The notch 7 for inserting the hot metal ladle 1 of the carriage 6 is provided with a roller receiving surface 21 for correcting the inclination, and the inclination correcting roller 19 provided below the side surface of the hot metal pot 1 is provided with a roller receiving surface. The attitude of the hot metal ladle 1 is controlled by sliding on the top 21.

[0024]

As described above, in the hot metal conveying apparatus of the present invention, the hot metal pot is provided with the inclination correcting means for correcting the tilt of the hot metal pot by sliding with the seat of the bogie. Even when deposits such as ingots and slag adhere to the steel receiving port of the hot metal pot, it is possible to easily control the position of the hot metal pot and to easily move the bogie on which the hot metal pot is mounted. It is possible to do.

Further, in the hot metal transfer device of the present invention,
Because the hot metal pot can be moved upright,
It is possible to move without destroying the power source mounting portion and the like of the bogie.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of a hot metal transfer device of the present invention.

FIG. 2 is a top view of the embodiment of FIG. 1;

FIG. 3 shows another embodiment of the hot metal transfer device of the present invention.

FIG. 4 is a view from above of FIG. 3;

FIG. 5 is a schematic view showing a conventional hot metal transport device.

FIG. 6 shows an example of the operation of the hot metal transfer device.

FIG. 7 shows another example of the operation of the hot metal transfer device.

[Explanation of symbols]

1: Hot metal ladle 2: Mixed iron wheel 3: Hot metal crane
4: converter 5: tap hole 6: bogie 7: notch 8: seat
9: trunnion shaft 10: pan seat 11: main winding 12: hook 1
3: Supplementary winding hardware 14: Supplementary winding 15: Loading port 16: Deposit 1
7: Frame 18: Guide post 19: Roller for inclination correction 2
0: Position regulating roller 21: Roller receiving surface

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuyoshi Fujii 20-1 Shintomi, Futtsu City Nippon Steel Corporation Technology Development Division (72) Inventor Kenichi Yamamoto 1 Kimitsu, Kimitsu City Nippon Steel Corporation Kimitsu Works F-term (reference) 4K014 AD06 AD23

Claims (4)

[Claims] 1. A reciprocating bogie having a notch portion for inserting a hot metal ladle and a pair of receiving seats provided on a frame upper surface of the notch portion,
A hot metal pot at the upper end of the hot metal ladle, a trunnion shaft at the body portion, a tilting auxiliary winding metal at the lower end, and a hot metal pan provided below the trunnion shaft and having a pan seat for engaging with the bogie seat. A hot metal transfer device comprising: a hot metal transfer device comprising: a hot metal ladle provided with a tilt correcting means for correcting a tilt of the hot metal ladle by sliding the hot metal pan with a seat of a bogie. 2. The hot metal conveying apparatus according to claim 1, wherein the inclination correcting means is provided on both sides of the pan seat of the hot metal pot. 3. The hot metal transport according to claim 1, further comprising a tilt correcting means comprising a tilt correcting roller provided below a side surface of the hot metal ladle and a roller receiving surface provided at a seat of a bogie. apparatus. 4. A tilt correcting means comprising a tilt correcting roller and a position regulating roller provided on both sides of a pot receiver of the hot metal pot, and a receiver and a guide post of a bogie. The hot metal transfer device according to claim 1.