JP2007136470A - Continuous casting facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a continuous casting facility provided with a mold short-wall side replacing apparatus with which when a ladle-replacing apparatus is a turret type, the short side of the mold can easily be exchanged on the continuous casting facility main body at a low cost. <P>SOLUTION: The mold short-wall side replacing apparatus 1 for replacing the mold short-wall side 3a of an assembling type mold 3 on the continuous casting facility main body, is loaded on the side surface of a turning frame 1b of the turret type ladle replacing apparatus 1. The mold short-wall side replacing apparatus 6 is provided with a hoist loading truck 6c mounted with the hoist 6e for replacing the mold short-wall side and a sliding carriage 6b being rails for hoist-loading truck, and only at the time of replacing the mold short-wall side, the sliding truck 6b is extended. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a continuous casting facility, and more particularly, to a continuous casting facility including a mold short side changing device that replaces a mold short side when changing the thickness of a mold in an assembling mold during non-casting.

  Conventionally, when exchanging the mold short side of an assembly mold in a continuous casting facility, a mold incorporating a mold short side of a predetermined dimension is prepared in advance at the mold maintenance site, and the entire mold is exchanged at once. However, this method requires a spare part of the crane and the entire mold having a large lifting capacity, which requires a great deal of replacement time.

  On the other hand, Patent Document 1 and Patent Document 2 disclose an assembly-type mold short-side replacement device that can replace a short-side mold on a continuous casting equipment body.

  The mold short side exchanging device of Patent Document 1 has a pair of hooking means that can be hooked to a hanging part of the mold short side, and an elevating means that can be lifted and lowered while the hooking means is hooked on the hanging part. In the state where the mold short side is lifted by the hooking means and the lifting / lowering means, the mold short side has an exchange carriage that can move between the continuous casting equipment main body and the mold short side placing table. Here, the exchange cart is installed in the garter of the factory building. If the mold short side changer of Patent Document 1 can be installed, it is not necessary to work by waiting for the idle time of the large capacity crane on the operation floor, the casting pause time can be shortened, and the productivity can be improved.

  The mold short side exchanging device of Patent Document 2 is provided with an exchanging carriage capable of traveling by lifting the mold short side when exchanging the mold short side, and the exchanging carriage travels on the tundisher rail. . In the casting mold short side exchanging device of Patent Document 2, a traveling device dedicated to the exchanging carriage is not necessary, so that the equipment cost and the operating cost can be reduced.

Further, in Patent Document 3, a lifting arm is provided on the swivel base of the turret ladle changing device so that the ladle cradle can be moved up and down. A technique for detachably mounting a suspension base is disclosed. According to the technique of Patent Document 3, the ladle and the mold set can be exchanged with a turret ladle exchanging apparatus.
JP 2000-197948 A JP 2003-048043 A JP-A-9-164456

  However, both of the mold short side changing devices of Patent Documents 1 and 2 require an exchange cart dedicated to short side replacement that travels on a rail provided on a garter of a factory building. Such a trolley type mold short side changer can be arranged if the ladle exchange method is a trolley type. However, when the ladle replacement method is the turret method, it has not been possible to actually place the ladle when taking into account the connection with the overhead crane.

  Moreover, in the technique of patent document 3, when attaching and detaching a mold suspension stand to a pan receptacle, an overhead crane is needed each time. Further, it is assumed that the turret type ladle exchanging apparatus is provided with an elevating arm, and cannot be applied to a turret type ladle exchanging apparatus without an elevating arm.

  In view of the above-described problems, the present invention includes a mold short-side replacement device that can easily replace the mold short side on the continuous casting equipment main body when the ladle exchanging apparatus is a turret type. It is an object to provide a continuous casting facility.

  The continuous casting equipment of the present invention is characterized in that a mold short side changing device for exchanging a mold short side of an assembling mold on the continuous casting equipment main body is mounted on a side surface of a turning frame of a turret ladle changing device. Is.

  In the present invention, the mold short-side replacement device has a hoist-mounted carriage on which a mold short-side replacement hoist is mounted, and a sliding carriage that is a rail of the hoist-mounted carriage and extends only at the time of mold short-side replacement. be able to. In this case, it is preferable to install two sets of hoist rails that serve as the hoist rails for replacing the mold short sides on the hoist mounted carriage so that the old and new mold short sides can be handled simultaneously. Furthermore, it is preferable to mount two types of mold hoist replacement hoists on the hoist rail in order to replace the left and right mold short sides.

  Moreover, it is preferable to install one mold short side changing device for one strand.

  In the continuous casting equipment of the present invention, since the mold short side changer is mounted on the side surface of the turning frame of the turret ladle changer, it is possible to install the mold short side changer without securing a special space. is there.

  Further, since there is no need to provide an exchange cart or a lifting arm that travels with the mold short side suspended as in the prior art, the equipment cost is reduced.

  Furthermore, since the mold short side changer can be moved onto the continuous casting equipment main body by the normal operation of the turret ladle changer and the mold short side can be exchanged in this state, the exchange work is facilitated.

  In addition, the mold short side changer is provided with a sliding trolley when it becomes the rail of the hoist-equipped trolley. It is possible to prevent the mold short side changing device from interfering with other devices when the pan changing device is turned or continuously cast.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 illustrates an embodiment of the continuous casting equipment of the present invention, where (a) is a plan view and (b) is a side view.

  The continuous casting facility shown in FIG. 1 is an example of two strands and includes a turret ladle changer 1. In the turret type ladle changing device 1, a trunnion bearing portion 1a for ladle mounting is formed at a position targeted for 180 degrees, and two ladles 2 can be mounted. When one ladle is empty, it turns 180 degrees to replace it with a ladle waiting at a 180 degree symmetrical position. That is, the conventional cart-type mold short-side changing device cannot be disposed within this turning range. Further, as can be seen from the plan view of FIG. 1 (a), both sides of the assembling mold 3 are standby positions for the tundish car 5 on which the tundish 4 is mounted. The type of mold short side changer cannot be arranged. Then, when taking into account the short side of the mold with the overhead crane (not shown), the conventional cart type short side replacement device cannot be arranged.

  Therefore, in the present invention, the mold short side changing device 6 is arranged on the side surface of the turning frame 1 b of the turret type ladle changing device 1. As a result, the mold short side changing device 6 rotates simultaneously with the turret type ladle changing device 1, so that there is no interference with the turret type ladle changing device 1. In addition, by keeping the turning range of the mold short side changing device 6 within the turning range of the tip of the ladle 2, there is no interference with the equipment around the turret type ladle changing device 1. The mold short side exchanging device 6 needs to lift the short side mold 3a immediately above the mold 3 when exchanging the mold short side, and if it is rotated as it is, it may interfere with other equipment. On the other hand, in the illustrated example, as will be described later, the mold short side exchanging device 6 is provided with a stretching mechanism, and is stretched only at the time of mold short side replacement, and the rest is restored to the original state, so that other devices can be used during rotational movement. To avoid interference.

  The mold short side exchanging device 6 includes a set of sliding carriages 6b that can move in the front-rear direction (left and right in FIG. 1) using the support frame 6a as a rail, and a set that can move in the front-rear direction using the sliding carriage 6b as a rail. The hoist mounting cart 6c. The hoist mounted carriage 6c is provided with two sets of hoist rails 6d along the direction perpendicular to the moving direction of the sliding carriage 6b, that is, the width direction of the mold 3, and each hoist rail 6d is provided along the longitudinal direction thereof. The hoist 6e for replacing the short side of the mold is mounted so as to be movable. The mold short side replacement hoist 6e winds up and down the mold short side 3a when the mold short side is replaced. In this manner, the hoist mounting carriage 6c is provided with two sets of hoist rails 6d on which the mold short side replacement hoist 6e is mounted, so that the old and new mold short sides 3a and 3a of the mold 3 can be handled simultaneously.

  FIG. 2 is an AA arrow view of FIG. As shown in the figure, each hoist rail 6d is provided with two types of mold hoist replacement hoists 6e. Thus, the left and right mold short sides 3a, 3a of the mold 3 can be exchanged. As described above, the mold short-side replacement hoist 6e is movable along the hoist rail 6d, so that the two types of mold short-side replacement hoists 6e are moved to the left and right according to the width of the mold 3, respectively. The replacement work can be performed by moving the mold short sides 3a, 3a directly above.

  One such mold short side changer 6 is installed for one strand. Since the illustrated example has two strands, two short mold side changing devices 6 are provided in parallel on the side surface of the turret ladle changing device 1.

  FIGS. 3A and 3B are side views showing an operation of exchanging the short mold side by the mold short side exchanging apparatus. FIG. 3A shows a state when exchanging the short mold side, and FIG. 3B shows a state after exchanging the short mold side. Show.

  When exchanging the mold short side 3a, as shown in FIG. 3 (a), the sliding carriage 6b is extended to the mold 3 side, and the hook of the mold short side replacement hoist 6e is directly above the mold 3 and the hook of the mold short side 3a. The hoist 6e for replacing the short side of the mold is wound up and down while being engaged with the hook (not shown). After exchanging the mold short side 3a, as shown in FIG. 3 (b), the sliding cart 6b is accommodated in the turret ladle exchanging device 1 side, and the exchanged mold short side 3a is stored in the short side exchanging truck 7. To load. Further, when the turret type ladle changing device 1 is turned, the sliding cart 6b is accommodated in the turret type ladle changing device 1 side in order to avoid interference with devices around the turret type ladle changing device 1. In this way, by extending the sliding carriage 6b only when exchanging the short mold side, the short mold exchanging device 6 interferes with other devices when the turret ladle exchanging apparatus 1 is turned or continuously cast. Can be prevented.

  After replacement of the mold short side 3a, the short side replacement cart 7 and the overhead crane (not shown) are in contact with the mold short side 3a within the travel range of the short side replacement cart 7 indicated by a broken line arrow in FIG. Perform in a place where there is no interference with the equipment around the ladle changer 1.

The embodiment of the continuous casting equipment of this invention is illustrated, (a) is the top view, (b) is a side view. It is an AA arrow line view of FIG. It is a side view which shows the replacement | exchange operation | work of the mold short side by a mold short side replacement | exchange apparatus, (a) shows the state at the time of replacement | exchange of a mold short side, (b) shows the state after replacement | exchange of a mold short side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turret type ladle changer 1a Trunnion bearing part 1b Turning frame 2 Ladle 3 Mold 3a Mold short side 4 Tundish 5 Tundish car 6 Mold short side changer 6a Support frame 6b Sliding cart 6c Hoist loading cart 6d Hoist rail 6e Mold short side replacement hoist 7 Short side replacement cart

Claims (5)

  A continuous casting facility characterized in that a short mold side changing device for exchanging a short mold side of an assembling mold on the continuous casting equipment body is mounted on a side surface of a turning frame of a turret ladle changing device.   The continuous mold according to claim 1, wherein the mold short-side changing device includes a hoist-equipped carriage on which a mold short-side exchanging hoist is mounted, and a sliding carriage that is a rail of the hoist-equipped carriage and is extended only when the mold short-side is exchanged. Casting equipment.   The continuous casting equipment according to claim 2, wherein the hoist-equipped carriage is provided with two hoist rails that serve as the rails for the mold short side replacement hoist so that the old and new mold short sides can be handled simultaneously.   The continuous casting equipment according to claim 3, wherein the hoist rail is equipped with two types of mold short side replacement hoists for exchanging the left and right mold short sides.   The continuous casting equipment according to any one of claims 1 to 4, wherein one mold short side changing device is installed for one strand.

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