JP2012245522A - Segment exchange system for continuous casting facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a segment exchange system for a continuous casting facility capable of lessening establishment restrictions of equipment used for a casting floor and effectively performing segment exchange work.SOLUTION: This system includes a plurality of movable guides 20 formed with a rail 21 and a rail 31 for leading guide rings g of the segment S and guide rings 13 of a hanging tool 10, and a plurality of fixed guides 30. The rail 21 for each of the movable guides 20 and the rail 31 for any of fixed guides 30 among the plurality of fixed guides 30 are selectively connected each other by making each of the movable guides 20 move in the vertical direction. The establishment restrictions of the equipment arranged on the casting floor F can be lessened since a segment exchange location is one location. THe segment exchange work can be effectively performed since a stop position of a ceiling crane is one fixed location.

Description

  The present invention relates to a segment exchange device for continuous casting equipment. More specifically, the present invention relates to a segment exchanging device that takes out and inserts a plurality of segments arranged curvedly below a mold of a continuous casting facility for maintenance and inspection.

There exists a thing of patent document 1 as an example of the conventional segment exchange apparatus.
As shown in FIG. 12, the segment exchanging device described in Patent Document 1 extends in the direction of the center of the strand bending from each segment installation position along a plurality of segments 101 arranged in a curved manner, and further vertically upward. A plurality of fixed guide rails 108 are provided. Each segment 101 is suspended by a hanging tool 112 suspended from a hook 111 of an overhead crane, and is taken out upward along each fixed guide rail 108.
Here, the fixed guide rails 108 are provided in the same number as the segments 101, and the upper ends of the fixed guide rails 108 are arranged in the longitudinal direction of the strand. The position of the upper end portion of the fixed guide rail 108 is a segment replacement position where the segment 101 is inserted or removed.

  On the other hand, there is generally a casting floor above the segment 101, and various equipment is installed on this casting floor. Therefore, the segment replacement position is not to interfere with these equipment and the overhead crane or the segment 101 that has been removed. Need to be placed.

However, if the segment replacement positions are provided side by side in the longitudinal direction of the strands, it is impossible to install equipment near them, so the problem is that the arrangement of the equipment installed on the cast-in floor is limited. is there.
Further, in the segment replacement work, it is necessary to move the overhead crane to each segment replacement position, so that there is a problem that the stop position of the overhead crane increases and the work becomes complicated.

Utility Model Registration No. 2555908

  In view of the above circumstances, an object of the present invention is to provide a segment exchange device for a continuous casting facility that has less restrictions on the placement of cast-in floor equipment and that can improve the efficiency of segment exchange work.

A segment exchanging device for a continuous casting facility according to a first aspect of the present invention is a segment exchanging device provided in a continuous casting facility having a plurality of segments that are curvedly arranged below a mold and have guide wheels attached to both side surfaces thereof. A plurality of bendable links, a suspension having guide wheels attached to both side surfaces, a movable guide composed of a rail that guides the guide wheels of the segments and the guide wheels of the suspension; A rail that guides the guide wheel of the segment and the guide wheel of the suspension; and a plurality of fixed guides provided at one end of the rail at the installation location of the segment. The movable guide rail and the fixed guide rail of any of the plurality of fixed guides can be selectively connected. It is characterized in.
The segment exchange device for a continuous casting facility according to a second aspect of the present invention is directed to the first aspect of the invention, wherein one end of one or more fixed guides of the plurality of solid guides and one end of the other fixed guide rail are oriented. And a state where one end of the rail of the movable guide can be connected to one end of the rail of the one or more fixed guides by changing the posture of the movable guide, and It is possible to switch between a state where it can be connected to one end of a rail of another fixed guide.
According to a third aspect of the present invention, there is provided a segment exchanging device for continuous casting equipment, wherein the movable guide is inserted in the first or second invention, and the movable guide is guided so as to move in the vertical direction. The longitudinal dimension is characterized in that when the movable guide is moved to the lowest part of the guide means, the upper end of the movable guide is positioned below the cast-in floor.

According to the first invention, since the movable guide moves in the vertical direction, the rail of the movable guide and the rail of any fixed guide can be selectively connected. There is only one replacement position, and there are fewer restrictions on the arrangement of equipment installed on the casting floor. Moreover, since there is only one segment replacement position, the overhead crane stop position is fixed and the segment replacement work can be made more efficient.
According to the second invention, the direction of one end of the rails of one or a plurality of fixed guides and the direction of one end of the rails of the other fixed guides are opposed to each other. Even in the case of being able to be connected, it is possible to connect to all the fixed guides with one movable guide, and the segment replacement position becomes one place. Further, the segment replacement position can be arbitrarily set according to the configuration of the existing continuous casting equipment.
According to the third invention, since the movable guide can be stored by holding the upper end of the movable guide below the casting floor, it is not necessary to separately provide a space for storing the movable guide.

It is a side view of a segment exchange device concerning one embodiment of the present invention. It is a front view of the hanging tool of the segment exchange device. It is a side view of the hanging tool of the segment exchange device. It is the (a) front view and (b) side view of one movable guide of the segment exchange apparatus. (A) is the Va-Va arrow directional cross-sectional view in Fig.4 (a), (b) is the Vb-Vb arrow directional cross-sectional view in Fig.4 (a). It is a front view of the other movable guide of the segment exchanging device. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 1. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 1. It is operation | movement explanatory drawing of a segment exchange work. It is operation | movement explanatory drawing of a segment exchange work. It is a side view of the segment exchange apparatus of the state which accommodated the movable guide. It is a side view of the conventional segment exchange apparatus.

Next, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the continuous casting equipment to which the present invention is applied is one in which a number of segments S are curved and arranged below a mold M. Each segment S is provided with a pair of guide wheels g, g on both side surfaces thereof. The symbol r indicates a guide roll for guiding the slab by sandwiching it up and down.
A cast-in floor F is provided above the segment S.

Now, the segment exchange device 1 according to an embodiment of the present invention will be described.
As shown in FIG. 1, the segment exchanging device 1 includes a hanging tool 10, a movable guide 20, and the same number of fixed guides 30 (30 a to 30 g) as the segments S. The movable guide 20 and the fixed guide 30 are for guiding the segment S and the hanging tool 10.

First, the hanging tool 10 will be described.
As shown in FIGS. 2 and 3, the hanging tool 10 includes a plurality of links 11 and hooks 12. The plurality of links 11 are connected to each other and are configured to be bendable. Guide wheels 13 are attached to both side surfaces of each link 11. A hook 12 is attached to the lowermost link 11 among the plurality of links 11. The hook 12 is for engaging with the guide wheel g of the segment S.
An overhead crane is provided above the cast-in floor F, and the link 11 at the uppermost end of the hanging tool 10 is suspended from a hook f of the overhead crane.
The length of the hanging tool 10 is set to such a length that the hook 12 can be engaged with the guide wheel g of the segment S even when the hanging tool 10 is guided according to the longest fixed guide 30.

Next, the movable guide 20 will be described.
The segment exchanging device 1 has a pair of guide wheels g, g attached to both side surfaces of the segment S and a pair of guide wheels 13, 13 attached to both side surfaces of the link 11 of the hanger 10. Movable guides 20a and 20b are provided.
4 and 5 show one of the movable guides 20a. The movable guide 20a is a long plate-like member, and a pair of side walls 21a and 21b are provided on the surface thereof. The pair of side walls 21a and 21b are provided in parallel along the center of the movable guide 20a. However, the lower end portion of the movable guide 20a is bent toward one side surface (left side surface in FIG. 4). Yes. Further, the side wall 21 a is longer than the side wall 21 b, and only the side wall 21 a is provided from above the movable guide 20. Moreover, the upper end part of the side wall 21a and the side wall 21b is formed so that it may each open toward a side surface. The side wall 21a and the side wall 21b constitute a rail 21 that guides the guide wheels g and g of the segment S and the guide wheels 13 and 13 of the link 11. Hereinafter, the lower end of the rail 21 is referred to as a movable side connection end 21c.

  A plurality of insertion holes 22 are formed in the movable guide 20a. The same number of insertion holes 22 as the fixed guides 30 are formed. Its function will be described later.

  Further, a pair of sliding pieces 23 are provided below both side surfaces of the movable guide 20a. The sliding pieces 23 are long plate-like members and are provided so as to protrude from the side surface of the movable guide 20a. Its function will be described later.

  As shown in FIG. 6, the other movable guide 20b has substantially the same configuration as that of the movable guide 20a, but is different from the movable guide 20a in the left-right direction. Specifically, in the movable guide 20a, the side wall 21a is provided on the left side in FIG. 4 and the side wall 21b is provided on the right side in FIG. 4, but in the movable guide 20b, the side wall 21a is provided on the right side in FIG. Is provided on the left side. And the movable side connection end 21c of the rail 21 of the movable guide 20b is bent so as to face the side surface (the right side surface in FIG. 6) opposite to the movable side connection end 21c of the rail 21 of the movable guide 20a.

As shown in FIGS. 1 and 7, the segment exchanging device 1 is provided with guide means 40 for guiding the movable guide 20 so as to move in the vertical direction.
The guide means 40 is a C-shaped member in plan view that covers the movable guide 20, and its longitudinal direction is provided along the vertical direction. Grooves 41 and 41 into which the sliding pieces 23 and 23 of the movable guide 20 are inserted are formed in the guide means 40, and the sliding pieces 23 and 23 are movable by sliding with respect to the grooves 41 and 41. The guide 20 is guided so as to move in the vertical direction.

  One guide means 40 is provided for each of the two movable guides 20a and 20b. The movable guides 20a and 20b are arranged such that their rails 21 and 21 face each other in a state where they are inserted into the guide means 40 and 40. Therefore, the suspension tool 10 and the segment S can be guided by inserting the guide wheels g and g of the segment S and the guide wheels 13 and 13 of the link 11 into the rails 21 and 21 of the pair of movable guides 20a and 20b. It has become.

  As shown in FIG. 8, a pair of fixing blocks 50, 50 are attached to the cast-in floor F. An insertion hole 51 is formed in the fixing block 50, and the movable guide 20 can be positioned by inserting a pin 52 into the insertion hole 51 and one of the insertion holes 22 of the movable guide 20. ing. Further, the height position of the movable guide 20 can be changed by changing the insertion hole 22 into which the pin 52 is inserted.

  Note that the fixing blocks 50 can be removable. By attaching the fixing blocks 50 and 50 only during the segment replacement operation described later, the arrangement restriction of other devices installed on the cast-in floor F can be reduced.

Next, the fixed guide 30 will be described.
As shown in FIG. 1, the segment exchanging device 1 is provided with the same number of fixed guides 30 a to 30 g as the segment S. Each fixed guide 30 has a rail 31 constituted by a pair of side walls. Guide wheels g and g attached to both side surfaces of the segment S by the rail 31 and both side surfaces of the link 11 of the hanging tool 10. The guide wheels 13, 13 attached to can be guided.

In the fixed guides 30a to 30c corresponding to the segment S installed on the upstream side of the cast strand, one end of the rail 31 is provided at the installation location of each segment S, and extends from there toward the strand bending center. The other end of the rail 31 (hereinafter referred to as a fixed-side connection end 31c) is provided on the upstream side of the casting strand of the guide means 40 in a side view.
On the other hand, in the fixed guides 30d to 30g corresponding to the segment S installed on the downstream side of the cast strand, one end of the rail 31 is provided at the installation location of each segment S, and extends from there toward the strand bending center. After that, it extends upward and further extends upstream of the casting strand. And the other end (fixed side connection end 31c) of the rail 31 is provided downstream of the casting strand of the guide means 40 in a side view.
That is, the direction of the fixed side connection end 31c of the rail 31 of the upstream fixed guides 30a to 30c and the direction of the fixed side connection end 31c of the rail 31 of the downstream fixed guides 30d to 30g are opposed to each other. The movable guide 20 is inserted between the fixed side connection ends 31 c of the rails 31.

  Moreover, the height position of the fixed side connection end 31c of the rail 31 of each fixed guide 30a-30g is comprised so that it may each differ. Therefore, when the movable guide 20 moves in the vertical direction, the movable side connection end 21c of the rail 21 of the movable guide 20 and the fixed side connection end 31c of the rail 31 of any fixed guide 30 can be connected. ing. Here, the insertion hole 22 formed in the movable guide 20 is formed at a position where the movable side connection end 21c is connected to any one of the fixed side connection ends 31c, and the insertion hole 22 into which the pin 52 is inserted is changed. Thus, the fixed guide 30 connected to the movable guide 20 can be selected.

  Further, since the movable guides 20a and 20b are formed so as to be different from each other on the left and right sides, the movable side connection end 21c is connected to the upstream side by exchanging the positions of the movable guide 20a and the movable guide 20b and inserting them into the guide means 40. Switching between a state connectable to the fixed side connection end 31c of the rail 31 of the side fixed guides 30a to 30c and a state connectable to the fixed side connection end 31c of the rail 31 of the downstream fixed guides 30d to 30g. it can.

In addition, in order to guide the guide wheels g and g attached to both side surfaces of the segment S and the guide wheels 13 and 13 attached to both side surfaces of the link 11 of the hanging tool 10, a pair of each fixed guide 30 is provided. Is provided. That is, in FIG. 1, only one of the fixed guides 30 is shown.
And the fixed guides 30 and 30 used as a pair are arrange | positioned so that the rails 31 and 31 may oppose each other, the guide wheels g and g of the segment S and the guide wheel 13 of the link 11 are set to the rails 31 and 31. , 13 can be used to guide the hanger 10 and the segment S.

Next, the segment exchange work using the segment exchange device 1 will be described.
First, the exchange operation of the segment S installed in the uppermost stream of the casting strand will be described.
As shown in FIG. 9A, the movable guide 20 is moved in the vertical direction to connect the movable side connection end 21c and the fixed side connection end 31c of the fixed guide 30a connected to the most upstream segment installation position. Then, the pin 52 is inserted into the predetermined insertion hole 22 and positioned. Thereby, the rail 21 of the movable guide 20 and the rail 31 of the fixed guide 30a are connected.

Next, the hanging tool 10 is lowered by the overhead crane, and the guide wheel 13 of the hanging tool 10 is inserted into the rail 21 of the movable guide 20. That is, the horizontal position of the movable guide 20 is the segment replacement position.
At this time, since only the side wall 21a is provided from above the movable guide 20, the overhead crane in which the suspension tool 10 is suspended travels in one direction, and the guide wheel 13 is brought into contact with the side wall 21a from the side. By doing so, the overhead crane can be easily positioned at the segment replacement position.

  Next, when the hanging tool 10 is further lowered by the overhead crane, the hanging tool 10 is guided by the rail 21 of the movable guide 20 and further guided by the rail 31 of the fixed guide 30a. It reaches the guide wheel g of the segment S installed upstream.

Therefore, the hook 12 of the hanging tool 10 is engaged with the guide wheel g of the segment S. Then, when the hanging tool 10 is raised by the overhead crane, the guide wheel g of the segment S and the guide wheel 13 of the hanging tool 10 are both raised along the rail 31 of the fixed guide 30, and then the rail of the movable guide 20. It rises along 21. For this reason, the segment S hooked on the hook 12 of the hanging tool 10 can be pulled out. Of course, the segment S can be inserted in the same manner.
As described above, the replacement work of the segment S installed at the most upstream is performed.

The replacement operation of the other segment S installed on the upstream side is performed as follows.
As shown in FIGS. 9B and 9C, the movable guide 20 is moved in the vertical direction, and the fixed guide 30b (30c) connected to the movable side connection end 21c and the segment installation position of the segment S to be exchanged. The fixed-side connection end 31c is connected, and a pin 52 is inserted into a predetermined insertion hole 22 for positioning. Thereby, the rail 21 of the movable guide 20 and the rail 31 of the fixed guide 30b (30c) are connected.
After that, by performing the same operation as the replacement operation of the segment S installed in the uppermost stream, the replacement operation of the arbitrary segment S installed on the upstream side can be performed.

The replacement work of the segment S installed on the downstream side is performed as follows.
First, the positions of the movable guide 20a and the movable guide 20b are exchanged and inserted into the guide means 40, and the movable side connection end 21c is connected to the fixed side connection end 31c of the rail 31 of the downstream fixed guides 30d to 30g. Switch to a possible state.

Next, as shown in FIGS. 10D to 10G, the movable guide 20 is moved in the vertical direction, and the fixed guide 30d connected to the movable side connection end 21c and the segment installation position of the segment S to be replaced. The fixed side connection end 31c of (30e-30g) is connected, and the pin 52 is inserted into the predetermined insertion hole 22 for positioning. Thereby, the rail 21 of the movable guide 20 and the rail 31 of the fixed guide 30d (30e-30g) are connected.
After that, by performing the same operation as the replacement operation of the segment S installed in the uppermost stream, the replacement operation of an arbitrary segment S installed on the downstream side can be performed.

As shown in FIG. 11, the movable guide 20 is moved to the lowermost part of the guide means 40 at times other than the segment replacement work. And the dimension of the elongate direction of the movable guide 20 is a dimension in which the upper end is located below the upper surface of the cast-in floor F when it moves to the lowest part of the guide means 40, The hatch provided in the casting floor F can be closed.
As described above, since the movable guide 20 can be stored in a state of being inserted into the guide means 40 at a time other than the segment exchanging operation, it is not necessary to separately provide a space for storing the movable guide 20.

As described above, the rail 21 of the movable guide 20 and the rail 31 of any one of the fixed guides 30 can be selectively connected by moving the movable guide 20 in the vertical direction. Work can be done.
Here, even if the movable guide 20 is moved in the vertical direction, the segment replacement position does not change. That is, there is only one segment replacement position regardless of the installation location of the segment S to be replaced. Therefore, the arrangement | positioning restrictions of the other apparatus installed in the cast-in floor F reduce.

  Moreover, since there is only one segment replacement position, the overhead crane stop position is fixed and the segment replacement work can be made more efficient.

(Other embodiments)
The shape and arrangement of the fixed guide 30 are not limited to the above embodiment, and can be arbitrarily configured.
For example, the number of upstream fixed guides provided on the upstream side of the casting strand of the guide means 40 with the fixed side connection end 31c and the downstream fixed guide provided on the downstream side of the cast strand of the guide means 40 with the fixed side connection end 31c. The distribution of the number can be arbitrarily selected. Further, only the upstream fixed guide or only the downstream fixed guide may be provided.

  Thus, the position of the movable guide 20, that is, the segment replacement position can be freely set by selecting the shape and arrangement configuration of the fixed guide 30. Therefore, the segment replacement position can be arbitrarily set in accordance with the position of the overhead crane of the existing continuous casting equipment and so as not to interfere with the equipment installed on the casting floor F.

DESCRIPTION OF SYMBOLS 1 Segment exchange apparatus 10 Hanging tool 20 Movable guide 21 Rail 21c Movable side connection end 30 Fixed guide 31 Rail 31c Fixed side connection end 40 Guide means

Claims (3)

A segment exchanging device provided in a continuous casting facility having a plurality of segments that are curvedly arranged below the mold and have guide wheels attached to both side surfaces,
A plurality of flexible links are connected, and a hanging tool with guide wheels attached to both sides,
A movable guide composed of rails for guiding the segment guide wheel and the suspension guide wheel;
It is composed of a rail that guides the guide wheel of the segment and the guide wheel of the hanging tool, and one end of the rail includes a plurality of fixed guides provided at the installation location of the segment,
By moving the movable guide in the vertical direction, the rail of the movable guide and the rail of any one of the plurality of fixed guides can be selectively connected. A segment changer for continuous casting equipment. The direction of one end of the rail of one or a plurality of fixed guides of the plurality of solid guides and the direction of one end of the rails of the other fixed guides are formed to face each other,
By changing the attitude of the movable guide, one end of the rail of the movable guide can be connected to one end of the rail of the one or more fixed guides and can be connected to one end of the rail of the other fixed guide 2. The segment exchange device for a continuous casting facility according to claim 1, wherein the segment exchange device can be switched depending on the state. The movable guide is inserted, and includes guide means for guiding the movable guide to move in the vertical direction,
The longitudinal dimension of the movable guide is such that when the movable guide is moved to the lowest part of the guide means, the upper end of the movable guide is positioned below the casting floor. Item 3. An apparatus for exchanging segments of continuous casting equipment according to item 1 or 2.

Images