JP2502908Y2 - Horizontal continuous casting equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal continuous casting device.

[0002]

2. Description of the Related Art In a conventional horizontal continuous casting apparatus shown in FIG. 6, a nozzle 64 is attached to a tundish body 62 in which molten metal such as molten steel is stored and a tundish 6 is provided.
1 is formed, and the axis of the nozzle 64 is horizontal during casting. A sliding gate 68 is provided between the nozzle 64 and the mold 69 provided at the fixed position. The sliding gate 68 guides the molten metal from the nozzle 64 to the mold 69 and shuts off the molten metal. The casting ends when the molten metal in the tundish main body 62 reaches a level just above the nozzle 64, and the sliding nozzle 68 provided in the tundish 61 closes the nozzle, and the tundish 61 and the mold 69 And the tundish 61 is moved to a position away from the mold 69 to remove the tundish body 62.
The remaining hot water 71 inside is discharged.

[0003]

In such a prior art, after the casting is completed, the remaining hot water is solidified in the vicinity of the nozzle 64 while moving the tundish 61 to the discharge position of the remaining hot water. Therefore, once the solidified molten metal is
The refractory near the nozzle 64 is damaged when the impact force is removed.

After the completion of casting, it is conceivable that all the molten metal 71 remaining in the tundish main body 62 is discharged from the nozzle 64 to the outside in the vicinity of the pouring position, but if this is done, the tundish 61 To
A large angle θ3 formed by the axis 72 of the nozzle 64 and the horizontal plane.
Therefore, it is necessary to incline all the remaining hot water from the nozzle 64, and the structure for that purpose becomes complicated and expensive.

Alternatively, it is conceivable to form a discharge hole for discharging the molten metal at the bottom of the tundish in order to discharge the residual molten metal from the nozzle body in the vicinity of the pouring position, but also when doing so. , The configuration becomes complicated,
It will be expensive.

An object of the present invention is to provide a horizontal continuous casting apparatus having a simple structure, preventing the residual hot water from solidifying near the nozzle and facilitating the removal of the residual hot water.

[0007]

DISCLOSURE OF THE INVENTION The present invention comprises (a) a mold 9 and (b) a tundish 1 having a supporting arm 14 for storing a molten metal 7 and protruding from both outer side portions, respectively. Attached to the body 2 and the side wall near the bottom of the tundish body 2,
A tundish 1 having a nozzle 4 that can be connected / disconnected to the end of the mold 9, (c) a rail 32 laid vertically and horizontally to the axis of the mold 9, and (d) a tundish carriage 13 And (d1) the traveling carriage 26 traveling on the rail 32, and (d2) the lifting carriage 15 arranged above the traveling carriage 26.
A lift truck 1 having a first guide surface 41a extending along the axis of the mold 9 and a second guide surface 41b that is continuous from the first guide surface 41a to the side opposite to the mold 9 and is inclined downward.
5a and (d3) are arranged at intervals in the front-rear direction along the axis of the mold 9, and one end of which is pin-coupled to the traveling carriage 26 by a pin 21 which is perpendicular to the axis of the mold 9 and horizontal. A pair of first double-acting hydraulic cylinders, the other end of which is pin-coupled to the lift truck 15a by another pin 24 which is vertical and horizontal to the axis of the mold 9 so that the lift truck 15a can be vertically displaced. 17, 18 and (d4) the support arm 14 to receive the first and second guide surfaces 41.
a transverse carriage 23 guided along a and 41b, and (d5) a second double-acting hydraulic cylinder connected to the transverse carriage 23 and driving the transverse carriage 23 along the first and second guide surfaces 41a and 41b. 27 is a horizontal continuous casting device.

[0008]

According to the present invention, when the second double-acting hydraulic cylinder 27 is extended, for example, at the end of casting, the transverse carriage 23 is displaced in the direction away from the mold 9 (rightward in FIG. 5),
As a result, the nozzle 4 of the tundish 1 is molded into the mold 9
When the traverse carriage 23 is guided along the first guide surface 41a and the second guide surface 41b at this time, as shown in FIG. 1 (2), the traverse carriage 23 is guided near the casting position. The tundish can be tilted so that 4 is above the connection position of the end of the mold 9.
Further, at this time, in order to surely prevent the residual molten metal 11 in the tundish 1 from leaking from the nozzle 4, of the pair of first double-acting hydraulic cylinders 17 and 18, the first double-acting hydraulic cylinder closer to the mold 9 is provided. The nozzle 4 may be extended by extending 17 and the first double-acting hydraulic cylinder 18 at a position far from the mold 9 may be reduced and lowered. Furthermore, at the same time as lowering the first double-acting hydraulic cylinder 17 near the mold 9, another double-acting hydraulic cylinder 18 at a position far from the mold 9 is moved.
It may be further greatly reduced and the residual hot water may be moved to a position away from the nozzle 4 in the main body 2 of the tundish 1 as shown in FIG. As a result, the residual hot water near the nozzle is
At the bottom of the tundish body, it flows and moves to a position away from the nozzle, and solidifies at a position away from the nozzle.
Therefore, the metal solidified at the position away from the nozzle can be easily removed from the tundish body by impact force or the like. The molten metal in the tundish body after casting does not solidify in the vicinity of the nozzle, so it is possible to easily discharge the solidified metal to the outside, at which time the refractory near the nozzle may be damaged. There is no.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view showing a structure which is a premise of the present invention. Tundish 1 is tundish body 2
And a nozzle 4 made of a refractory material attached to a side wall near the bottom portion 3. The tundish body 2 is
A refractory material 6 is lined on the inner peripheral surface of the iron shell 5. When performing horizontal continuous casting, as shown in FIG. 1A, the molten metal 7 in the tundish 1 is guided to the mold 9 from the nozzle 4 through the sliding gate 8.

At the time of casting, the axis 12 of the nozzle 4 and the axis 12a of the mold 9 are in a straight line. This casting is completed when the molten metal 7 reaches a level 10 which almost coincides with the upper surface of the mold in the immediate vicinity above the nozzle 4.

After the casting is completed, in order to prevent the residual hot water from solidifying in the vicinity of the nozzle 4, in the present invention, as shown in FIG.
As shown in (2), the nozzle 4 has a mold 9
It is tilted so that it is located above the connection position between the gate and the gate. As a result, the residual hot water having the level shown by reference numeral 10 in FIG.
As shown in FIG. 3, the tundish 1 is stored at a position apart from the nozzle 4 at the bottom portion 3 and is solidified in this state. In this way, as shown in FIG. 1B, the nozzle 4 is tilted so as to be above the connecting position of the end portion of the mold 9, so that the nozzle 4 is separated from the end portion of the mold 9. At this time, it is possible to reliably prevent the residual hot water 11 in the tundish 1 from leaking from the nozzle 4. At this time, the hydraulic cylinders 17 and 19 may be simultaneously extended to further raise the nozzle 4. Thus, as shown in FIG. 1 (2), the residual hot water 11 may be solidified while the nozzle 4 is tilted so as to be above the connection position, but it is further shown in FIG. 1 (3). The hydraulic cylinders 18 and 20 are greatly reduced,
May be slightly shrunk and the tundish 1 may be tilted as shown in FIG. 1 (3). As shown in FIG. 1 (2), the angle θ formed by the axis 12 of the nozzle 4 and the horizontal plane.
1 and FIG. 1 (3) are both relatively small angles less than the prior art angle θ3 described in connection with FIG. 6 above.

After the residual hot water 11 is solidified, it is removed from the tundish body 2 by applying an impact force to the metal. Since this residual hot water 11 is solidified at a position away from the nozzle 4 at a place where it is easy to remove, the work of removing the solidified metal lump is easy. In this way, it is possible to prevent the residual hot water from solidifying near the nozzle 4.

FIG. 2 is a side view of a tundish truck 13 equipped with the tundish 1, and FIG. 3 is a plan view of the tundish truck 13. Tundish body 2
A support arm 14 protruding outward is fixed to the
The support arm 14 is received in the recess 16 of the elevating member 15. The elevating member 15 can be displaced up and down by two pairs of double-acting hydraulic cylinders 17 to 20. Each cylinder 1
7 to 20 can be individually driven to expand and contract. The cylinder 17 is connected to the traverse carriage 23 by the pin 21, and the piston rod of the cylinder 17 is connected to the elevating member 15 by the pin 24. The axes of the pins 21 and 24 are perpendicular to the axis of the mold 9 and horizontal. The remaining cylinders 18 to 20 are similarly connected to the traverse carriage 23 and the elevating member 15. Traverse truck 23
Wheels 25 are provided on the vehicle, and can move on a traveling carriage 26 in parallel with the axis of the mold 9. This traverse truck 23
Are driven by double-acting hydraulic cylinders 27, 28.
The cylinder 27 is connected to the traveling carriage 26 by a pin 29, and its piston is connected to the traverse carriage 23 by a pin 30. The axes of the pins 29 and 30 are the same as those of the pin 2 described above.
Parallel to 1, 24. The other cylinder 28 is mounted in a similar manner. The traveling carriage 26 includes wheels 31. The wheels 31 can travel on rails 32 that are laid vertically and horizontally to the axis of the mold 9.

In casting, the cylinders 17-
20 and the cylinders 27 and 28, and the nozzle 4
It is airtightly connected to the mold 9 through the gate 8. Therefore, the gate 8 is opened, a molten metal such as steel is injected into the tundish 1, and horizontal continuous casting is performed.

When the level of the molten metal reaches very close to the upper side of the nozzle 4 as described above, the gate 8 is closed and the traverse carriage 23 is moved by the cylinders 27 and 28 to the right of FIG. Slightly displaced to, then cylinder 1
7 and 19 are extended and the cylinders 18 and 20 are contracted, thus tilting the tundish 1 as shown in FIG. 1 (2). Therefore, the residual hot water 11 flows and moves to a position away from the nozzle 4 on the bottom portion 3, and
It solidifies in the state shown in. Therefore, the solidified metal can be easily removed from the tundish 1.

FIG. 4 is a cross-sectional view of a part of the structure which is another premise of the present invention. A sliding gate 35 is provided between the nozzle 4 of the tundish 1 and the mold 9. The sliding gate 35 includes a fixed plate 36 fixed to the nozzle 4, a fixed plate 37 fixed to the mold 9, and a gate that is vertically displaceable in FIG. 4 between the pair of fixed plates 36 and 37. And plates 38, 39. The fixing plates 36 and 37 and the gate plates 38 and 39 are formed with holes through which the molten metal flows, and these holes are displaced and closed as shown in FIG. 4, and the holes are aligned with each other. In conformity with 12, 12a, the open state is set.

At the end of casting, the gate plates 38 and 39 are moved as shown in FIG.
At the position indicated by reference numeral 40 between 8 and 39, separated,
The fixed plate 36 and the gate plate 38 are moved together with the tundish 1, and the fixed plate 37 and the gate plate 39 are moved to the mold 9.
It is in a state of being installed in.

FIG. 5 is a side view of an embodiment of the present invention. This embodiment is similar to the configuration shown in FIGS. 1 to 3 described above, and the corresponding portions bear the same reference numerals. It should be noted that, in this embodiment, the transverse carriage 23 receives and supports the support arm 14 of the tundish 1. The wheels 25 of the transverse carriage 23 are guided on the guide surface 41 of the lifting carriage 15a. The guide surface 41 is a first guide surface 41a for horizontal continuous casting, and a second guide surface 41a which is continuous from the first guide surface 41a to the opposite side of the mold 9 (to the right in FIG. 5) and is inclined downward. 41b. The lifting carriage 15a includes a double-acting hydraulic cylinder 17, which is vertically displaceable on the traveling carriage 26,
They are connected by 18, which is similar to the configuration described above. The traverse carriage 23 is driven by the double-acting hydraulic cylinder 27 on the lift carriage 15a in the same manner as the above-mentioned configuration.

During horizontal continuous casting, the transverse carriage 23 is mounted on the first guide surface 41a of the lifting carriage 15, and the gate 8 is connected to the mold 9.

After the casting is completed, the cylinder 27 is extended and the traveling carriage 23 is moved as indicated by reference numeral 42, so that the nozzle 4 is located above the connection position with the mold 9 via the gate 8. Is tilted. Therefore, the residual hot water of the tundish 1 flows to a position away from the nozzle 4, and the metal mass after solidification can be moved to a place where it is easy to remove. Other configurations of the embodiment shown in FIG. 5 are similar to the configurations shown in FIGS.

[0021]

[0022]

[0023]

[0024]

As described above, according to the present invention, after the casting, the second double-acting hydraulic cylinder 27 is extended, for example, so that the traverse carriage 23 can move the first guide surface 4 of the lift carriage 15a.
The nozzle 4 of the tundish 1 is disengaged from the end of the mold 9 by being guided by the second guide surface 41b from 1a, and at the same time, the nozzle 4 is above the connecting position of the end of the mold 9. The nozzle 4 can prevent the residual molten metal in the tundish body 2 from leaking. Simultaneously with or after this, the pair of first double-acting hydraulic cylinders 1
By reducing the first double-acting hydraulic cylinder 18 located at a position farther away from the mold 9 out of the molds 7 and 18, the molten metal remaining in the tundish main body 2 can be moved away from the nozzle 4. it can. Therefore, at the end of casting, the molten metal remaining in the tundish body can be solidified in the bottom portion of the tundish body at a position away from the nozzle. Therefore, it is possible to prevent the residual hot water from solidifying near the nozzle. Therefore, it is possible to prevent the refractory near the nozzle from being damaged by removing the solidified metal of the residual hot water near the nozzle in the present invention. The remaining hot water is solidified at a position away from the nozzle, whereby the contaminated metal can be easily removed from the tundish main body.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an operation of a horizontal continuous casting apparatus showing a structure which is a premise of the present invention.

FIG. 2 is a side view showing a configuration including a tundish 1.

FIG. 3 is a plan view showing a configuration including the tundish 1 shown in FIG.

FIG. 4 is a cross-sectional view showing a structure which is another prerequisite of the present invention showing a sliding gate 35 and its vicinity.

FIG. 5 is a side view of an embodiment of the present invention.

FIG. 6 is a sectional view of the prior art of the present invention.

[Explanation of symbols]

 1 Tundish 2 Tundish main body 3 Bottom 4 Nozzle 8,35 Sliding gate 9 Mold 15 Elevating member 23 Traverse trolley 26 Traveling trolley

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Yoji Ao 1-1-1, Edamitsu, Hachimanto-ku, Kitakyushu, Kitakyushu, Fukuoka Inside Nippon Steel Co., Ltd., Equipment Technology Headquarters (56) References JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A mold 9 comprising: (a) a mold 9; and (b) a tundish 1, a tundish body 2 for storing a molten metal 7 and having support arms 14 protruding from both outer side portions, and a tundish body 2. Attached to the side wall near the bottom of
A tundish 1 having a nozzle 4 connectable / detachable at the end of the mold 9, (c) a rail 32 laid vertically and horizontally to the axis of the mold 9, and (d) a tundish carriage 13 And (d1) the traveling carriage 26 traveling on the rail 32, and (d2) the lifting carriage 15 arranged above the traveling carriage 26.
A lift truck 1 having a first guide surface 41a extending along the axis of the mold 9 and a second guide surface 41b that is continuous from the first guide surface 41a to the side opposite to the mold 9 and is inclined downward.
5a and (d3) are arranged at intervals in the front-rear direction along the axis of the mold 9, and one end of which is pin-coupled to the traveling carriage 26 by a pin 21 which is perpendicular to the axis of the mold 9 and horizontal. A pair of first double-acting hydraulic cylinders, the other end of which is pin-coupled to the lift truck 15a by another pin 24 which is vertical and horizontal to the axis of the mold 9 so that the lift truck 15a can be vertically displaced. 17, 18 and (d4) the support arm 14 to receive the first and second guide surfaces 41.
a transverse carriage 23 guided along a and 41b, and (d5) a second double-acting hydraulic cylinder connected to the transverse carriage 23 and driving the transverse carriage 23 along the first and second guide surfaces 41a and 41b. 27. A horizontal continuous casting apparatus comprising: