JP2022139050A - Dewatering device - Google Patents

Abstract

To maintain dewatering performance even when the position or dimensions of the object to be dewatered are changed, and to suppress the breakage of a dewatering member.SOLUTION: A dewatering device 20 is provided at a continuous casting facility and performs the dewatering of an object 21 to be dewatered. The dewatering device 20 comprises: a chamber base part 31a (base part); a dewatering member 60; and a driving mechanism 80. The dewatering member 60 is provided movably with respect to the chamber base part 31a and can be arranged so as to surround the object 21 to be dewatered. The driving mechanism 80 drives the dewatering member 60 with respect to the chamber base part 31a to make the dewatering member 60 follow the object 21 to be dewatered so as to provide a gap between the object 21 to be dewatered and the dewatering member 60.SELECTED DRAWING: Figure 2

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a draining device provided in a continuous casting facility for draining an object to be drained.

For example, Patent Document 1 and the like describe a conventional drainer (see claim 1 and FIG. 5 of the same document). In the technique described in the same document, even if the dimensions of the object to be drained (in the same document, the slab) are changed, it is possible to remove water from the object to be drained (see paragraph 0006 of the same document, etc. reference).

Japanese Patent Application Laid-Open No. 2002-1503

In the draining device described in the same document, the draining member (draining means in the same document) contacts the draining object. Therefore, there is a possibility that the draining means may be damaged.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a draining device that can maintain draining performance even when the position or size of a draining object changes, and can suppress damage to the draining member.

The draining device is provided in the continuous casting facility and drains the water from the object to be drained. The draining device includes a base portion, a draining member, and a drive mechanism. The draining member is movably provided with respect to the base portion, and can be arranged so as to surround the draining object. The driving mechanism drives the draining member with respect to the base portion, and causes the draining member to follow the draining object so as to provide a gap between the draining object and the draining member.

With the above configuration, it is possible to maintain the draining performance even when the position or size of the draining object changes, and to suppress damage to the draining member.

1 is a cross-sectional view of the continuous casting facility 1 viewed from the side; FIG. FIG. 2 is a view of the draining device 20 shown in FIG. 1 viewed from the upper side Z1, and shows a state in which the width of the draining target 21 is the minimum and the thickness is the maximum. It is a view taken along line F3-F3 in FIG. 2, and is a view of the drainer 20 viewed from the right side Y1. It is the figure which looked at the chamber 31 etc. which are shown in FIG. 2 from the upper side Z1. FIG. 3 is a view of the draining member 60 and the like shown in FIG. 2 as viewed from the upper side Z1; FIG. 6 is a view in the direction of arrow F6 in FIG. 5, and is a view of the draining member 60 and the like as seen from the front side X1. It is a view in the direction of arrow F7 in FIG. 5, and is a view of the draining member 60 and the like as seen from the rear side X2. It is a view in the direction of arrow F8 in FIG. 5, and is a view of the draining member 60 and the like as seen from the right side Y1. FIG. 9 is a sectional view showing the F9 portion of FIG. 8; It is the figure which looked at the rail 50 shown in FIG. 7, the roller 70, etc. from the back side X2. It is a view equivalent to FIG. 2 and shows a state in which the width of the draining target 21 is the maximum and the thickness is the minimum. FIG. 12 is a view of the rail 50, the draining member 60, and the like shown in FIG. 11 as viewed from above Z1; It is a view equivalent to FIG. 2 and shows a state in which the draining member 60 is fully closed. FIG. 14 is a view of the rail 50, the draining member 60, and the like shown in FIG. 13 as viewed from the upper side Z1;

A continuous casting facility 1 equipped with the draining device 20 shown in FIG. 1 will be described with reference to FIGS. 1 to 14. FIG.

A continuous casting facility 1 is a facility for continuously obtaining a slab 21b. The continuous casting facility 1 may be a facility (vertical type) that sends out the slab 21b vertically (or substantially vertically, the same shall apply hereinafter) to the horizontal plane. The continuous casting facility 1 may be a facility (a vertical bending type or a curved type) that bends the slab 21b so that the slab 21b extends in the horizontal direction after sending out the slab 21b perpendicularly to the horizontal plane. The slab 21b is, for example, steel. A continuous casting facility 1 includes a tundish 11 , a mold 13 , rolls 15 , a water jetting device 17 and a draining device 20 .

A tundish 11 is a container in which molten metal is placed. The mold 13 is a mold into which molten metal is poured from the tundish 11 . The mold 13 has an internal space (through hole) penetrating in the vertical direction Z through which metal can pass. The details of directions such as the “vertical direction Z” will be described later. Inside the mold 13, the outer periphery of the molten metal solidifies. The dimensions of the interior space of the mold 13 are variable (described below). The roll 15 guides the dummy bars 21 a and the cast slab 21 b sent out from the mold 13 . The roll 15 may withdraw the slab 21 b from the mold 13 . The roll 15 is a columnar or cylindrical member. The roll 15 is arranged below the mold 13 Z2. A plurality of rolls 15 are provided. The plurality of rolls 15 are arranged so as to sandwich the mold 13 in the front-rear direction X, and arranged side by side in the up-down direction Z (pull-out direction) (constituting roll segments). The water jetting device 17 sprays water on the surface of the slab 21b to cool the slab 21b. For example, the water ejection device 17 is arranged between the rolls 15 arranged in the vertical direction Z, or the like.

(Outline of operation of continuous casting equipment 1)
At the start of continuous casting by the continuous casting equipment 1, the dummy bar 21a is put into the mold 13 (more specifically, the internal space of the mold 13). In this state, molten metal is injected from the tundish 11 into the mold 13 above the dummy bar 21a Z1. Next, dummy bar 21a and cast slab 21b are withdrawn from mold 13 to lower side Z2. After that, the cast slab 21b is continuously delivered from the mold 13 to the lower side Z2. At this time, the dummy bar 21a passes between the rolls 15 (is guided by the rolls 15). In addition, the cast piece 21b is cooled by being sprayed with water from the water jetting device 17 while passing between the rolls 15 (while being guided by the rolls 15). The dummy bar 21a and the watered cast slab 21b pass through the drainer 20 and are drained by the drainer 20. - 特許庁Since it is generally not necessary to cool the dummy bar 21a, it is not necessary to apply water to the dummy bar 21a. On the other hand, since the water applied to the slab 21b flows down to the surface of the dummy bar 21a, it is necessary to drain the water not only on the surface of the slab 21b but also on the surface of the dummy bar 21a.

The draining device 20 is a device for draining the draining object 21 . The draining device 20 is arranged below the water ejection device 17 Z2. The draining device 20 includes a chamber 31, a front draining member strut 41 shown in FIG. 6, a rail strut 43, a rail 50 shown in FIG. , and a control device 90 shown in FIG.

The draining object 21 is an object to be drained by the draining device 20 . The draining object 21 is at least one of the slab 21b and the dummy bar 21a. Here, the direction in which the object to be drained 21 moves with respect to the chamber base portion 31a (base portion), which will be described later, is defined as the "feed direction" (specifically, the direction from the upper side Z1 to the lower side Z2). As shown in FIG. 2, a cross section of the object 21 to be drained surrounded by the draining member 60 and viewed from the feed direction is referred to as a cross section 21c.

The shape of the cross section 21c is substantially the same as the shape (not shown) of the internal space of the mold 13 viewed from the up-down direction Z. The cross section 21c is, for example, polygonal, for example quadrangular, for example rectangular. For example, the cross section 21c is a rectangle that is not a square and has two long sides (sides extending in the left-right direction Y) and two short sides (sides extending in the front-back direction X). In this case, the slab 21b is plate-shaped or the like, such as a slab. The dimension of the cross section 21c in the left-right direction Y is defined as the "width" of the cross section 21c (the same applies to the draining object 21). The dimension of the cross section 21c in the front-rear direction X is defined as the "thickness" of the cross section 21c (the same applies to the draining object 21). The width and/or thickness of cross section 21c may vary during casting. FIG. 2 shows the state where the thickness of the cross section 21c is maximum and the width of the cross section 21c is minimum. FIG. 11 shows the state where the thickness of the cross section 21c is the smallest and the width of the cross section 21c is the largest. The shape of the cross section 21c has a state (intermediate size) between the state shown in FIG. 2 and the state shown in FIG. 11 (not shown). Note that the cross section 21c shown in FIG. 2 may have a shape other than a polygon, a polygon other than a quadrangle, a quadrangle other than a rectangle, or a square. Below, the case where the cross section 21c is a rectangle that is not a square will be described. As shown in FIG. 5, the draining object 21 includes a draining object front surface 21x1, a draining object rear surface 21x2, a draining object right surface 21y1, and a draining object left surface 21y2.

The front surface of the draining object 21x1 is the surface of the draining object 21 on the front side X1. The position of the front surface of the draining object 21x1 with respect to the chamber base 31a does not change or hardly changes during casting ("not changing" below includes substantially not changing). The front surface of the object to be drained 21x1 is a reference surface (reference side surface). As a modification, the position of the front surface 21x1 of the object to be drained with respect to the chamber base portion 31a may be changed during casting.

The back surface 21x2 of the draining object is the surface of the back side X2 of the draining object 21 (anti-reference side surface). When the dimensions of the internal space of the mold 13 (see FIG. 1) change during casting, the position of the rear surface 21x2 of the draining object with respect to the chamber base portion 31a changes (the same applies to the right surface 21y1 of the draining object and the left surface 21y2 of the draining object). .

The right surface 21 y 1 of the draining object is the surface of the right side Y 1 of the draining object 21 . The draining object left surface 21y2 is the surface of the draining object 21 on the left side Y2. The center position (strand center Sc (see FIG. 6)) in the left-right direction Y between the right surface 21y1 and the left surface 21y2 of the draining object normally does not change during casting. The position of the right surface of the draining object 21y1 and the position of the left surface of the draining object 21y2 are interlocked with respect to the chamber base portion 31a. The right surface 21y1 of the object to be drained and the left surface 21y2 of the object to be drained may move independently of each other.

(definition of direction)
As shown in FIG. 1, the vertical direction Z is the direction in which the central axis of the draining object 21 extending in the longitudinal direction extends, which is the direction in which the central axis of the draining object 21 at a position surrounded by the draining member 60 extends. is. The vertical direction Z is, for example, a vertical direction (or a substantially vertical direction). In the vertical direction Z, the direction (feeding direction) in which the object to be drained 21 moves with respect to the chamber base portion 31a is defined as the lower side Z2, and the opposite side is defined as the upper side Z1. As shown in FIG. 5, the front-rear direction X is the moving direction of a certain draining member 60 (for example, the rear side draining member 60B) among the plurality of draining members 60. As shown in FIG. The up-down direction Z and the front-back direction X may, for example, be orthogonal, substantially orthogonal, or cross each other. When the cross section 21c of the draining object 21 is not square but rectangular, the front-rear direction X is the direction in which the short side of the cross section 21c extends. The direction of movement of the rear draining member 60B (see FIGS. 5 and 12) when the rear draining member 60B moves in the direction of narrowing the area surrounded by the draining member 60 in the front-rear direction X is defined as the front side X1. and Let the side opposite to the front side X1 in the front-back direction X be the rear side X2. A direction perpendicular to each of the up-down direction Z and the front-rear direction X is defined as a left-right direction Y. As shown in FIG. The left-right direction Y may be a direction substantially perpendicular to or intersecting the up-down direction Z and the front-rear direction X, respectively. In the horizontal direction Y, the right side when facing the front side X1 is the right side Y1, and the opposite side to the right side Y1 is the left side Y2.

The chamber 31 is a container that accommodates the draining member 60, as shown in FIG. The chamber 31 may contain the roll 15 and may contain the water jetting device 17 . The chamber 31 includes a chamber base 31a, a chamber opening 31b shown in FIG. 2, a chamber fence 31c (see FIG. 3), and a chamber wall 31d.

The chamber base portion 31a (base portion) is a base that supports the rail 50 and the draining member 60 from the lower side Z2. The chamber base portion 31a is the lower Z2 portion (bottom portion) of the chamber 31 (see FIG. 1). A base portion that supports the rail 50 and the draining member 60 from the lower side Z2 may be provided separately from the chamber 31. For example, the chamber base portion 31a has a plate-like shape extending horizontally or substantially horizontally. The chamber base portion 31a is provided so as to extend in the front-rear direction X and the left-right direction Y. As shown in FIG. The chamber base portion 31a is preferably inclined with respect to the horizontal direction (see FIG. 1). When this inclination is provided, steam explosion can be suppressed (for details, see the description of the draining member inclined surface 60Bb (see FIG. 9) described later).

The chamber opening 31b is an opening (through hole) through which the draining target 21 can pass. The chamber opening 31b is provided in the chamber base portion 31a. For example, the chamber opening 31b is rectangular when viewed in the up-down direction Z, or the like. The position and size of the chamber opening 31b are set so that the draining object 21 can pass through the chamber opening 31b even when at least one of the width and thickness of the draining object 21 is maximum. The position and size of the chamber opening 31b are set so as to secure a gap between the draining object 21 and the draining object 21 that allows the bending and meandering of the draining object 21 .

As shown in FIG. 3, the chamber fence 31c prevents the water on the chamber base 31a from overflowing from the chamber opening 31b. The chamber fence 31c protrudes upward Z1 from the chamber base portion 31a. As shown in FIG. 4, the chamber fence 31c is provided all around the chamber opening 31b.

The chamber wall 31d is a side surface of the chamber 31, as shown in FIG. 1, extending upward Z1 from the chamber base 31a. As shown in FIG. 2, the chamber wall 31d surrounds the draining member 60 and the rail 50 in the front-rear direction X and the left-right direction Y. As shown in FIG.

As shown in FIG. 6, the front draining member support 41 is a support supporting a front draining member 60A (long side draining member) (described later) with respect to the chamber base portion 31a. The front-side draining member strut 41 is erected on the chamber base 31a and provided to extend upward Z1 from the chamber base 31a (the same applies to the rail strut 43). A plurality of (three in the example shown in FIG. 6) front-side draining member struts 41 are provided. A plurality of front-side draining member struts 41 support the front-side draining member 60A so as to bridge the front-side draining member 60A. The front-side draining member support 41 is arranged so that a space S41 is provided between the front-side draining member 60A and the chamber base portion 31a. The presence of the space S41 prevents the water flow in the chamber base portion 31a from being blocked by the front-side draining member strut 41 (the same applies to the space S43 below). In addition, the existence of the space S41 suppresses deposits (for example, scale) from accumulating on the chamber base portion 31a (the same applies to the space S43 described below).

The rail support 43 is a support supporting the rail 50 with respect to the chamber base portion 31a. The rail support 43 is erected on the chamber base portion 31a and provided to extend upward Z1 from the chamber base portion 31a. A plurality of rail supports 43 are provided. A plurality of rails 50 are provided, and each rail 50 is supported by a plurality of (two in the example shown in FIG. 6) struts. A plurality of rail supports 43 support the rail 50 so as to span the rail 50 . The rail support 43 is arranged so that a space S43 is provided between the chamber base portion 31a and the rail 50 .

As shown in FIG. 5, the rail 50 supports the draining member 60 so as to be continuously movable with respect to the chamber base portion 31a. The rail 50 is provided so as to extend in the moving direction of the draining member 60 with respect to the chamber base portion 31a (described later). The rail 50 is fixed to the chamber base portion 31a. The rail 50 is arranged on the upper side Z1 of the chamber base portion 31a and supported by the chamber base portion 31a from the lower side Z2. The rail 50 is fixed to the chamber base portion 31a via a rail strut 43 (see FIG. 6). The rail 50 may be fixed to the chamber base portion 31a via a drain member 60 (specifically, a front drain member 60A) fixed to the chamber base portion 31a. Note that the rail 50 may be suspended from a base portion (not shown) different from the chamber base portion 31a. However, normally, the roll 15 shown in FIG. Therefore, it is difficult to secure the arrangement space of the base portion for supporting the rail 50 shown in FIG. 5 from the upper side Z1. Therefore, the rail 50 is preferably supported by the chamber base portion 31a from the lower side Z2. The rail 50 includes a rear rail 50B, a right rail 50C, and a left rail 50D.

The rear rail 50B supports the rear draining member 60B so as to be movable in the front-rear direction X. As shown in FIG. As shown in FIG. 4, the trailing rail 50B is arranged on the right side Y1 of the chamber opening 31b and on the left side Y2 of the chamber opening 31b. In addition, in FIG. 4, the position of the rail 50 is indicated by a two-dot chain line. The rear rail 50B includes a rear first rail 50B1 (first rail) and a rear second rail 50B2 (second rail).

The rear first rail 50B1 (first rail) is arranged on one side in the left-right direction Y (for example, right side Y1) of the chamber opening 31b. The first rail 50B1 for rear is provided so as to extend in the front-rear direction X, and is, for example, rod-shaped (the same applies to the second rail 50B2 for rear). As shown in FIG. 10, the first rear rail 50B1 has a circular or substantially circular cross section when viewed from the direction in which the first rear rail 50B1 extends (that is, the front-rear direction X). The first rail 50B1 for rear use is provided with a projecting portion 50B1a (convex portion) having a convex shape on the upper side Z1. Deposits (for example, scale) on the first rail 50B1 for rear use are likely to fall due to the presence of the projecting portion 50B1a, so accumulation of deposits on the first rail 50B1 for rear use is suppressed. The projecting portion 50B1a restricts the movement of the first roller 71 in the left-right direction Y (described later).

As shown in FIG. 4, the rear second rail 50B2 (second rail) is arranged on the side opposite to the side where the rear first rail 50B1 is provided (for example, the left side Y2) with respect to the chamber opening 31b. . The second rail 50B2 for rear use is arranged with an interval in the "rail facing direction" between it and the first rail for rear use 50B1. The "rail facing direction" of the rear rail 50B is a horizontal direction that intersects the moving direction of the rear drain member 60B with respect to the chamber base portion 31a. The "rail facing direction" in the rear rail 50B is the direction in which the first rear rail 50B1 and the second rear rail 50B2 face each other, specifically the horizontal direction Y. As shown in FIG. As shown in FIG. 10, the cross section of the second rear rail 50B2 is substantially circular when viewed from the direction in which the second rail 50B2 extends (that is, the front-rear direction X). The rear second rail 50B2 includes a projecting portion 50B2a and a flat portion 50B2b.

The projecting portion 50B2a is a portion of the rear second rail 50B2 that is convex upward Z1. Deposits (for example, scale) on the rear second rail 50B2 are likely to fall due to the presence of the projecting portion 50B2a, so accumulation of the deposit on the rear second rail 50B2 is suppressed.

The plane portion 50B2b is a portion of the rear second rail 50B2 that extends horizontally (or substantially horizontally). The plane portion 50B2b allows the movement of the second roller 72 in the rail-facing direction (specifically, the horizontal direction Y) (described later). The flat portion 50B2b is provided on the upper side Z1 portion of the rear second rail 50B2.

The right rail 50C supports a right draining member 60C (short side draining member) movably in the left-right direction Y, as shown in FIG. As shown in FIG. 4, the right rail 50C is arranged on the front side X1 and the rear side X2 of the chamber opening 31b. The right rail 50C includes a first right rail 50C1 (first rail) and a second right rail 50C2 (second rail).

The right first rail 50C1 (first rail) is arranged on one side in the front-rear direction X (for example, the rear side X2) of the chamber opening 31b. The first right rail 50C1 is provided so as to extend in the left-right direction Y, and is, for example, rod-shaped (the same applies to the second right rail 50C2). For example, as shown in FIG. 8, the first right rail 50C1 is arranged above the rear rail 50B Z1 and above the front draining member 60A Z1. The details of the position of the right first rail 50C1 will be described later. The cross section of the first right rail 50C1 viewed from the direction in which the first right rail 50C1 extends (that is, the lateral direction Y) is the same as the cross section of the first rear rail 50B1 viewed from the front-rear direction X shown in FIG. configured similarly. Specifically, the first right rail 50C1 (see FIG. 8) has a projection (projection) similar to the projection 50B1a of the first rear rail 50B1.

As shown in FIG. 4, the right second rail 50C2 (second rail) is arranged on the side opposite to the side where the right first rail 50C1 is provided (for example, the front side X1) with respect to the chamber opening 31b. . The second right rail 50C2 is arranged with an interval in the "rail facing direction" between it and the first right rail 50C1. The "rail facing direction" in the right rail 50C is the direction in which the first right rail 50C1 and the second right rail 50C2 face each other, specifically the front-rear direction X. As shown in FIG. 8, the cross section of the second right rail 50C2 when viewed from the direction in which the second right rail 50C2 extends (that is, the lateral direction Y) is the rear rail 50C2 viewed from the front-rear direction X shown in FIG. It is configured in the same manner as the cross section of the second rail 50B2. Specifically, the second right rail 50C2 (see FIG. 8) has a projecting portion and a planar portion similar to the projecting portion 50B2a and the planar portion 50B2b of the second rail for rear 50B2.

The left rail 50D supports a left draining member 60D (short-side draining member) movably in the left-right direction Y, as shown in FIG. The left rail 50D and the right rail 50C are configured symmetrically (or substantially symmetrically) in the left-right direction Y. As shown in FIG. The left rail 50D includes a left first rail 50D1 (first rail) and a left second rail 50D2 (second rail). As shown in FIG. 4, the left first rail 50D1 (first rail) is arranged on one side in the front-rear direction X (for example, the rear side X2) of the chamber opening 31b. The left second rail 50D2 (second rail) is arranged on the side opposite to the side where the left first rail 50D1 is provided (for example, the front side X1) with respect to the chamber opening 31b.

The draining member 60 is a member for suppressing water from dropping to the lower side Z2 than the draining member 60, as shown in FIG. The draining member 60 is arranged above the chamber base portion 31a Z1. The draining member 60 is arranged so as to face the chamber base portion 31a in the vertical direction Z. As shown in FIG. The draining member 60 is provided movably with respect to the chamber base portion 31a. As shown in FIG. 5, the draining member 60 is movably provided with respect to the rail 50 and guided by the rail 50 (see FIGS. 5 and 12). Here, the state in which the object to be drained 21 shown in FIG. 1 has not reached the draining member 60 is defined as "before the object to be drained 21 reaches". More specifically, “before arrival of the draining object 21” means that the draining object 21 is arranged above the draining member 60 Z1, and the lower Z2 end of the draining object 21 and the draining member 60 This is a state in which the distance in the direction Z exceeds the "predetermined distance". A state in which the distance in the vertical direction Z between the lower Z2 end of the draining object 21 and the draining member 60 is equal to or less than the "predetermined distance", or the draining object 21 is at the same height or lower Z2 with respect to the draining member 60 , is defined as "after arrival of the draining object 21".

This draining member 60 is arranged so as to prevent water from falling from the chamber opening 31b shown in FIG. 2 before the draining object 21 reaches. Specifically, before the draining object 21 reaches the draining member 60, the draining member 60 is arranged to shield the chamber opening 31b (functions as a shielding member) (see FIG. 14).

This draining member 60 drains the draining object 21 after the draining object 21 reaches it. The draining member 60 prevents the water attached to the surface of the draining object 21 from falling to the lower side Z2 than the draining member 60 after the draining object 21 reaches. The draining member 60 prevents the water around (in the air) the draining object 21 from falling to the lower side Z2 than the draining member 60 after the draining object 21 reaches. Specifically, the draining member 60 is arranged so as to surround the draining target 21 after the draining target 21 reaches it. Below, a state in which the draining member 60 surrounds the draining object 21 after the draining object 21 has arrived will be mainly described. As shown in FIG. 5 , the draining member 60 faces the draining object 21 . The draining member 60 is arranged close to the draining object 21 with a gap between it and the draining object 21 . Four draining members 60 are provided so as to be able to face four sides of the cross section 21c of the draining object 21 . The draining member 60 includes a front draining member 60A, a rear draining member 60B, a right draining member 60C, and a left draining member 60D.

The front side draining member 60A (long side side draining member) can face the surface forming the long side of the cross section 21c, and specifically can face the front surface of the draining object 21x1. The front side draining member 60A faces the front surface 21x1 of the draining object in the front-rear direction X, and is arranged with a gap between the front surface 21x1 of the draining object. The end of the rear side X2 of the front side draining member 60A is arranged along the front surface of the draining object 21x1, more specifically, parallel or substantially parallel to the front surface of the draining object 21x1.

The front side draining member 60A is rectangular when viewed in the vertical direction Z (the same applies to the rear side draining member 60B, the right side draining member 60C, and the left side draining member 60D). When viewed from the vertical direction Z, the long side of the front draining member 60A is the left-right direction Y, and the short side of the front draining member 60A is the front-rear direction X (the same applies to the rear draining member 60B). The front side draining member 60A is plate-like or substantially plate-like (the same applies to the rear side draining member 60B, the right side draining member 60C, and the left side draining member 60D). As described above, the position of the front surface of the draining object 21x1 with respect to the chamber base 31a does not change during casting. Therefore, the front draining member 60A is fixed (fixedly installed) to the chamber base portion 31a. If the position of the front surface of the draining object 21x1 with respect to the chamber base portion 31a changes during casting, the front side draining member 60A may be movable with respect to the chamber base portion 31a. The structure of the front side draining member 60A is the same as the structure of the rear side draining member 60B described later, and is symmetrical or substantially symmetrical with the rear side draining member 60B in the front-rear direction X, for example.

The rear-side draining member 60B (long side-side draining member) can face the surface opposite to the surface facing the front-side draining member 60A among the surfaces forming the long sides of the cross section 21c. It can face the rear surface 21x2 of the draining object. The rear draining member 60B faces the draining object rear surface 21x2 in the front-rear direction X, and is arranged with a gap between it and the draining object rear surface 21x2. The end of the front side X1 of the rear draining member 60B is arranged along the draining object rear surface 21x2, more specifically, parallel or substantially parallel to the draining object rear surface 21x2.

The rear drain member 60B is supported by the rear rail 50B. As shown in FIG. 7, the rear draining member 60B is supported by the rear rail 50B from the lower side Z2. The rear draining member 60B is arranged beside the rear rail 50B (at the same height level or substantially the same height level). More specifically, the lower Z2 end of the rear draining member 60B is arranged lower Z2 than the upper Z1 end of the rear rail 50B, and the upper Z1 end of the rear draining member 60B is positioned closer to the rear rail. It is arranged on the upper side Z1 than the lower side Z2 end of 50B. The rear draining member 60B may not be arranged beside the rear rail 50B, and may be arranged only on the upper side Z1 of the rear rail 50B, for example. In this case, the rear draining member 60B may have a gate shape or the like when viewed in the front-rear direction X. More specifically, a portion extending upward Z1 from each of the first rear rail 50B1 and the second rear rail 50B2, and You may provide a part which connects the parts of.

This rear draining member 60B is movable with respect to the chamber base portion 31a shown in FIG. Movement of the rear draining member 60B is guided by the rear rail 50B (described later). The rear draining member 60B is movable in the front-rear direction X (the thickness direction of the cross section 21c of the draining object 21). The rear-side draining member 60B changes its position depending on whether the draining object 21 is before or after reaching it, and changes its position according to the thickness of the cross section 21c. 2 and 5 show the state in which the thickness of the cross section 21c is maximum and the rear drain member 60B is arranged at the rearmost side X2 in the movable range of the rear drain member 60B (fully opened state). show. The rear draining member 60B indicated by solid lines in FIG. 8 is the rear draining member 60B in the fully open state. 11 and 12 show the state of the rear draining member 60B when the thickness of the cross section 21c is minimum. FIG. 8 shows the rear draining member 60B-1 when the thickness of the section 21c (see FIG. 12) is minimum. 13 and 14 show the state before the draining object 21 (see FIG. 5) reaches the state in which the rear draining member 60B is arranged at the most front side X1 in the movable range of the rear draining member 60B ( fully closed state). FIG. 8 shows the rear drain member 60B-2 in the fully closed state. The front X1 end of the rear drain member 60B-2 in the fully closed state may be arranged with a slight gap between it and the front drain member 60A, and overlaps the front drain member 60A in the vertical direction Z. may be in contact with the front draining member 60A.

As shown in FIG. 9, the rear draining member 60B includes a draining member main body portion 60Ba, a draining member inclined surface 60Bb, a gas speed increasing portion 60Bc, an ejection portion 60Bd, and a gas passage 60Be (see FIG. 9). 8).

As shown in FIG. 9, the draining member main body portion 60Ba is a main body portion of the rear side draining member 60B, and has a rectangular shape or the like when viewed from the up-down direction Z. As shown in FIG.

The draining member inclined surface 60Bb causes the water on the upper surface (surface of the upper side Z1) of the draining member 60 (here, the rear side draining member 60B) to flow away from the draining object 21. FIG. The draining member inclined surface 60Bb is provided on the surface of the upper side Z1 of the rear side draining member 60B. The draining member inclined surface 60Bb is inclined with respect to the horizontal direction so as to be arranged on the lower side Z2 as the distance from the draining object 21 increases. Specifically, the draining member inclined surface 60Bb is inclined with respect to the horizontal direction so as to be arranged on the lower side Z2 toward the rear side X2 (has a slope that descends toward the rear side X2). The draining member inclined surface 60Bb shown in FIG. 5 may have a slope that descends from the central portion of the draining member inclined surface 60Bb in the left-right direction Y toward each of the right side Y1 and the left side Y2 (the right side draining member shown in FIG. 8 60C shape). As shown in FIG. 9, the draining member inclined surface 60Bb is provided on the upper surface of the rear draining member 60B, so that the water on the upper surface of the rear draining member 60B moves away from the draining object 21 (for example, the rear side X2). This prevents water from flowing and accumulating on the upper surface of the rear draining member 60B. Therefore, steam explosion at breakout of the slab 21b (see FIG. 1) is suppressed. A breakout is when the solid metal on the outer periphery of the slab 21b breaks and the molten metal inside flows out of the slab 21b. Since the rear-side draining member 60B is provided with the draining member inclined surface 60Bb, the water on the upper surface of the rear-side draining member 60B flows away from the draining object 21 (for example, the rear side X2), and the rear-side draining member 60B and the drainer. The inflow (backflow) of water into the gap with the object 21 is suppressed.

The gas velocity increasing part 60Bc is a member for increasing the wind velocity of the compressed gas G from the ejection part 60Bd to improve draining performance. The gas acceleration part 60Bc is arranged to face the draining object 21, is arranged to be close to the draining object 21, and is arranged with a slight gap between it and the draining object 21. As will be described later, the compressed gas G is jetted from the jetting portion 60Bd toward the gap between the draining object 21 and the gas acceleration portion 60Bc. The gas acceleration part 60Bc is arranged so that the wind velocity of the gas increases when the gas passes through this gap, and the water can be efficiently blown away. Specifically, the gas speed increasing portion 60Bc is arranged such that the distance in the horizontal direction (specifically, the front-rear direction X) between the gas speed increasing portion 60Bc and the draining object 21 gradually narrows toward the upper side Z1. placed. The gas acceleration part 60Bc is attached to the upper surface of the draining member main body part 60Ba. The gas speed increasing portion 60Bc is provided to extend obliquely upward toward the draining object 21 from the end portion of the draining member body portion 60Ba on the side of the draining object 21 (specifically, the front side X1). The "upward" in the above "diagonally upward" is vertically upward, for example, the upper side Z1 (the same applies to "obliquely upward" below). The gas acceleration part 60Bc is arranged to be inclined with respect to the horizontal direction so as to be arranged on the upper side Z1 toward the front side X1. The gas acceleration part 60Bc is, for example, plate-shaped. For example, the gas acceleration part 60Bc has a convex shape on the lower side Z2 and the draining object 21 side (here, the front side X1). When viewed from the left-right direction Y, the gas acceleration section 60Bc has, for example, a curved portion, for example, a curved portion, and has, for example, an arc-shaped portion. When viewed from the left-right direction Y, the gas acceleration portion 60Bc may be linear.

The ejection part 60Bd ejects compressed gas G for blowing off water. The compressed gas G ejected from the ejection part 60Bd blows off the water flowing down along the surface of the object 21 to be drained. This compressed gas G blows away water that is about to drop from the gap between the draining member 60 and the draining object 21 . This compressed gas G may be air or a gas other than air. The ejection part 60Bd is arranged at the end of the draining member 60 on the side of the draining object 21 (specifically, the front side X1). The ejection part 60Bd is arranged on the lower side Z2 than the gas acceleration part 60Bc. The ejection part 60Bd includes an ejection port that ejects the compressed gas G obliquely upward toward the draining object 21 (specifically, toward the front side X1). The ejection part 60Bd is configured to eject the compressed gas G toward the gap between the draining object 21 and the gas acceleration part 60Bc. The ejection part 60Bd is arranged so as to face the draining object 21 (specifically, the draining object rear surface 21x2). As shown in FIG. 5, the ejection part 60Bd is arranged along the rear surface of the draining object 21x2, arranged to extend parallel or substantially parallel to the rear surface of the draining object 21x2, and specifically extends in the left-right direction Y. are arranged as follows. In addition, in FIG. 5, for convenience of explanation, the part corresponding to the gas acceleration part 60Bc (see FIG. 9) is given the reference numeral of the ejection part 60Bd. Further, when the gap between the draining member 60 and the object 21 to be drained is sufficiently small, the object 21 to be drained can be drained without the ejection part 60Bd.

The ejection part 60Bd is divided into a plurality of ejection zones in the direction along the rear surface 21x2 of the draining object (specifically, the horizontal direction Y). Whether or not the ejection part 60Bd ejects the compressed gas G (see FIG. 9) is switched for each ejection zone according to the size of the object 21 to be drained. Thereby, the consumption of the compressed gas G is reduced, and the energy for compressing the gas is reduced. In the example shown in FIG. 5, the ejection part 60Bd is divided into a first ejection zone ZB1, a second ejection zone ZB2, and a third ejection zone ZB3 (divided into three ejection zones). The first jetting zone ZB1 is the center jetting zone in the horizontal direction Y. As shown in FIG. The second jetting zone ZB2 is the jetting zone on the right side Y1 of the first jetting zone ZB1. The third jetting zone ZB3 is a jetting zone on the left side Y2 of the first jetting zone ZB1.

The ejection part 60Bd ejects the compressed gas G (see FIG. 9) to the area where the rear draining member 60B and the draining object 21 face each other. The ejection part 60Bd can stop the ejection of the compressed gas G to the area where the draining member 60 and the draining object 21 do not face each other. Specifically, in the example shown in FIG. 5, the width of the cross section 21c of the draining object 21 is the smallest. In this case, the ejection part 60Bd of the first ejection zone ZB1 ejects the compressed gas G, and the ejection parts 60Bd of the second ejection zone ZB2 and the third ejection zone ZB3 stop ejection of the compressed gas G. In the example shown in FIG. 12, the width of the cross section 21c is the maximum. In this case, the compressed gas G is jetted from the jetting portions 60Bd of the first jetting zone ZB1, the second jetting zone ZB2, and the third jetting zone ZB3. When the width of the cross section 21c is between the minimum and maximum widths (intermediate width), in this example, the ejection portions 60Bd of the first ejection zone ZB1, the second ejection zone ZB2, and the third ejection zone ZB3 are compressed. Gas G is ejected. If the number of ejection zones is more than three, the ejection zones for ejecting the compressed gas G may be widened as the width of the cross section 21c increases. As shown in FIG. 14, before the water-draining object 21 (see FIG. 5) arrives, the jetting portions 60Bd of the first jetting zone ZB1, the second jetting zone ZB2, and the third jetting zone ZB3 jet the compressed gas G. may be stopped. Note that the front drain member 60A also has a plurality of ejection zones similar to the rear drain member 60B.

The gas passage 60Be is a passage through which the compressed gas G passes, as shown in FIG. The gas passage 60Be is provided inside the rear drain member 60B (drain member 60). More specifically, the gas passage 60Be is a space inside the draining member main body 60Ba. By providing the gas passage 60Be inside the rear draining member 60B, it is possible to easily secure a space for arranging the gas passage 60Be, and it becomes easy to arrange the draining device 20 (see FIG. 1) in a narrow space. By providing the gas passage 60Be inside the rear drain member 60B, the rear drain member 60B is cooled by the compressed gas G, and thermal deformation of the rear drain member 60B is suppressed. Note that the gas passage 60Be may be arranged outside the rear draining member 60B.

As shown in FIG. 5, the right draining member 60C (short side draining member) can face the surface forming the short side of the cross section 21c, and more specifically, can face the right surface of the draining object 21y1. The right draining member 60C faces the right surface of the draining object 21y1 in the left-right direction Y, and is arranged with a gap between it and the right surface of the draining object 21y1. The end of the left side Y2 of the right draining member 60C is arranged along the draining object right surface 21y1, more specifically, parallel or substantially parallel to the draining object right surface 21y1.

The right side draining member 60C is arranged so as to overlap (stack) in the vertical direction Z with the long side draining members (specifically, the front side draining member 60A and the rear side draining member 60B). As shown in FIG. 8, the right side draining member 60C is arranged above the front side draining member 60A and the rear side draining member 60B without contacting the front side draining member 60A and the rear side draining member 60B. The right side draining member 60C may be arranged on the lower side Z2 than the front side draining member 60A and the rear side draining member 60B. As shown in FIG. 5, the right draining member 60C has a rectangular shape when viewed in the vertical direction Z, the long side of the right draining member 60C is the front-back direction X, and the short side of the right draining member 60C is the left-right direction Y. (The same applies to the left drainage member 60D). The length of the right side draining member 60C in the front-rear direction X is the front-rear direction from the front side X1 end of the front side draining member 60A to the rear side X2 end of the rear side draining member 60B when the rear side draining member 60B is fully opened. longer than the distance in X. As shown in FIG. 2, the length of the right draining member 60C in the horizontal direction Y is the distance from the right surface 21y1 of the draining object (see FIG. 5) to the right side Y1 of the chamber opening 31b when the width of the cross section 21c is the narrowest. It is longer than the distance in the horizontal direction Y to the end. In this case, the right drainage member 60C can block the portion of the chamber opening 31b on the right side Y1 of the drainage object 21. As shown in FIG. For example, in the example shown in FIG. 5, the length of the right-side draining member 60C in the left-right direction Y is the edge of the right-side Y1 of the rear-side draining member 60B from the right surface 21y1 of the draining object when the width of the cross section 21c is the narrowest, for example. is shorter than the distance in the horizontal direction Y to . As a modification, the right drain member 60C and the left drain member 60D may be closed in the left-right direction Y so that the drain member 60 is fully closed (not shown). In this modification, the length of the right drain member 60C in the left-right direction Y is set to a length that allows the right drain member 60C and the left drain member 60D to close the chamber opening 31b. For example, it is set to be longer than half the length of the chamber opening 31b in the left-right direction Y.

The right drain member 60C is supported by the right rail 50C. As shown in FIG. 8, the right drain member 60C is supported by the right rail 50C from below Z2. In the same way that the rear flashing member 60B may or may not be arranged laterally to the rear rail 50B, the right flashing member 60C may or may not be arranged laterally to the right rail 50C. It does not have to be.

The right drainage member 60C is movable with respect to the chamber base portion 31a shown in FIG. Movement of the right drain member 60C is guided by the right rail 50C (described later). The right draining member 60C is movable in the horizontal direction Y (the width direction of the cross section 21c of the draining object 21). The right drainage member 60C changes its position according to the width of the cross section 21c. 2 and 5 show a state in which the width of the cross section 21c is minimum (minimum width state) and the right drain member 60C is arranged on the leftmost side Y2 within the movable range of the right drain member 60C. The right drain member 60C indicated by solid lines in FIG. 7 is the right drain member 60C when the cross section 21c is in the minimum width state. 11 and 12 show the state in which the width of the cross section 21c is maximum (maximum width state), and the right drain member 60C is arranged in the rightmost Y1 of the movable range of the right drain member 60C (fully opened state). indicates In FIG. 7, the right drainage member 60C-1 in the fully opened state is indicated by a chain double-dashed line. In this example, as shown in FIG. 14, when the draining object 21 (see FIG. 2) is in a state before reaching, the front side draining member 60A and the rear side draining member 60B move the chamber opening 31b (see FIG. 2). shield. Therefore, the right draining member 60C may be arranged at any position when the draining object 21 has not yet reached. In addition, when the draining object 21 is in a state before reaching, the right draining member 60C and the left draining member 60D may shield the chamber opening 31b.

As shown in FIG. 7, the right draining member 60C includes a draining member main body portion 60Ca, a draining member inclined surface 60Cb, a gas speed increasing portion 60Cc, and a jetting member 60Cc, as shown in FIG. A portion 60Cd and a gas passage (not shown) are provided. Regarding these elements, differences from the rear draining member 60B (see FIG. 9) will be described.

The draining member inclined surface 60Cb, for example, is inclined with respect to the horizontal direction (has a slope that descends toward the right side Y1) so as to be arranged on the lower side Z2 toward the right side Y1. As shown in FIG. 8, the draining member inclined surface 60Cb has slopes that descend toward the front side X1 and the rear side X2. As shown in FIG. 7, the gas speed increasing section 60Cc is arranged to be inclined with respect to the horizontal direction so as to be arranged on the upper side Z1 toward the left side Y2.

The ejection part 60Cd is configured to eject the compressed gas G obliquely upward toward the left side Y2 (see the ejection part 60Bd shown in FIG. 9). As shown in FIG. 5, the ejection part 60Cd is divided into a plurality of ejection zones in the direction (specifically, the front-rear direction X) along the right surface of the draining object 21y1. In the example shown in FIG. 5, the ejection part 60Cd is divided into a first ejection zone ZC1 and a second ejection zone ZC2 (divided into two ejection zones). The second jetting zone ZC2 is a jetting zone on the rear side X2 of the first jetting zone ZC1. In the example shown in FIG. 5, the thickness of the section 21c of the draining object 21 is the maximum. In this case, the ejection portions 60Cd of the first ejection zone ZC1 and the second ejection zone ZC2 eject the compressed gas G (see FIG. 9). In the example shown in FIG. 12, the thickness of cross section 21c is the smallest. In this case, the ejection part 60Cd (see FIG. 5) of the first ejection zone ZC1 ejects the compressed gas G, and the ejection part 60Cd (see FIG. 5) of the second ejection zone ZC2 stops ejecting the compressed gas G. When the number of ejection zones is more than two, the ejection zones from which the compressed gas G is ejected may be widened as the thickness of the cross section 21c increases. As shown in FIG. 14, the jetting portions 60Cd of the first jetting zone ZC1 and the second jetting zone ZC2 may stop jetting the compressed gas G before the draining object 21 (see FIG. 5) reaches.

As shown in FIG. 5, the left draining member 60D (short side draining member) can face the surface opposite to the surface facing the right draining member 60C, among the surfaces forming the short sides of the cross section 21c. . Specifically, the left draining member 60D can face the draining object left surface 21y2. The left draining member 60D faces the left surface of the draining object 21y2 in the horizontal direction Y, and is arranged with a gap between it and the left surface of the draining object 21y2. The right Y1 end of the left draining member 60D is arranged along the draining object left surface 21y2, more specifically, parallel or substantially parallel to the draining object left surface 21y2. The left draining member 60D is configured in the same manner as the right draining member 60C, and is configured symmetrically or substantially symmetrically with the right draining member 60C in the left-right direction Y. As shown in FIG.

(Arrangement of draining member 60 and rail 50)
Components of the draining member 60 (front side draining member 60A, rear side draining member 60B, etc.), components of the rail 50 (rear rail 50B, etc.), and those supporting the rail 50 (specifically, rail support 43 (Fig. 7 )) must be arranged so as not to interfere with each other. They can be arranged in any way as long as they do not interfere with each other.

[Arrangement Example 1] As described above, the rail 50 may be supported by the base portion (specifically, the chamber base portion 31a) from the lower side Z2, or may be supported by the base portion from the upper side Z1. [Arrangement Example 1a] Since it is difficult to secure a space for arranging the base section above the rail 50 Z1, the rail 50 is supported by the base section (specifically, the chamber base section 31a) from the lower side Z2. preferably. [Arrangement Example 3a] to [Arrangement Example 3c] below describe the case where the rail 50 is supported by the chamber base portion 31a from the lower side Z2.

[Arrangement Example 2] When viewed from the vertical direction Z, the rails 50 may or may not intersect. [Arrangement Example 2a] When the rails 50 do not intersect with each other when viewed from the vertical direction Z, the rails 50 can be shortened compared to the case where the rails 50 intersect with each other, and the space for arranging the rails 50 can be reduced. can be done. Therefore, when viewed from the vertical direction Z, it is preferable that the rails 50 do not cross each other.

[Arrangement Example 3] A long-side draining member (for example, the rear-side draining member 60B) and a short-side-side draining member (for example, the right side draining member 60C) are spaced apart in the vertical direction Z so that they overlap in the vertical direction Z. placed. At this time, when the short side draining member (right side draining member 60C and left side draining member 60D) is arranged on the upper side Z1 with respect to the long side side draining member (rear side draining member 60B) ([Arrangement example 3a below] ]) and the case where it is arranged on the lower side Z2 ([arrangement example 3b] below) are conceivable. Here, the right draining member 60C will be described as an example of the short side draining member.

[Arrangement example 3a] Consider the case where the right side drain member 60C is arranged on the lower side Z2 than the rear side drain member 60B. In this case, it is necessary that the rail support 43 (see FIG. 7) supporting the first rear rail 50B1 and the first rear rail 50B1 do not interfere with the right drainage member 60C. For this reason, the rail support 43 (see FIG. 7) supporting the rear first rail 50B1 and the rear first rail 50B1 are positioned on the right side Y1 (left-right direction Y outer side) of the right drain member 60C (see FIG. 12) in the fully opened state. 1 rail 50B1 needs to be arranged. Then, the position of the right Y1 end of the rear drain member 60B needs to be positioned on the right Y1 side of the right Y1 end of the right drain member 60C in the fully open state. Therefore, the length in the left-right direction Y of the rear draining member 60B is increased.

[Arrangement example 3b] Consider the case where the right side drain member 60C is arranged above the rear side drain member 60B Z1. In this example, the right draining member 60C is arranged above the rail support 43 (see FIG. 7) that supports the first rear rail 50B1, the first rear rail 50B1, and the rear draining member 60B. be. In this case, the right drain member 60C does not interfere with each of the rail support 43 (see FIG. 7) that supports the first rear rail 50B1, the first rear rail 50B1, and the rear drain member 60B (these upside Z1). As a result, the length of the rear draining member 60B in the left-right direction Y can be shortened compared to the case of [arrangement example 3a].

[Arrangement example 3c] The right side draining member 60C may be arranged on the upper side Z1 than the front side draining member 60A. In this case, the right side draining member 60C can move without interfering with the front side draining member 60A.

[Arrangement Example 4] The first right rail 50C1 (the rail 50 that supports the short-side draining member) is arranged, for example, as follows.

[Arrangement Example 4a] The right first rail 50C1 is preferably arranged so as not to overlap the rear draining member 60B when viewed in the vertical direction Z. Specifically, the right first rail 50C1 is arranged outside the movable range of the rear draining member 60B in the direction in which the short side of the cross section 21c extends (front-rear direction X outside, specifically rear side X2). be done. More specifically, the right first rail 50C1 is arranged on the rear side X2 from the position of the rear side draining member 60B when the rear side draining member 60B is arranged on the rearmost side X2.

[Arrangement Example 4b] The first rail 50C1 for the right is arranged outside the first rail 50B1 for the rear in the direction in which the short side of the cross section 21c extends (the outer side in the front-rear direction X, specifically the rear side X2). . [Arrangement Example 4c] The arrangement of the first rail 50D1 for left is symmetrical or substantially symmetrical in the horizontal direction Y with the arrangement of the first rail 50C1 for right.

[Arrangement Example 4d] The right second rail 50C2 is arranged so as not to overlap the front draining member 60A when viewed in the up-down direction Z. For example, the right second rail 50C2 is arranged on the front side X1 of the front draining member 60A. Note that the right second rail 50C2 may be arranged so as to overlap the front draining member 60A when viewed in the up-down direction Z. [Arrangement Example 4e] The arrangement of the second rail 50D2 for left is symmetrical or substantially symmetrical in the horizontal direction Y with the arrangement of the second rail 50C2 for right.

The rollers 70 smoothly move the draining member 60 with respect to the rail 50 . The roller 70 rolls along the rail 50 , rolls in the direction in which the rail 50 extends, and rolls in the moving direction of the draining member 60 with respect to the rail 50 . Specifically, for example, the roller 70 attached to the rear draining member 60B rolls in the front-rear direction X along the rear rail 50B. The rollers 70 are attached to the draining member 60, more specifically, to each of the rear draining member 60B, the right draining member 60C, and the left draining member 60D. Below, the roller 70 attached to the rear draining member 60B will be mainly described. The rollers 70 are provided at both ends of the rear draining member 60B in the horizontal direction (specifically, the horizontal direction Y) orthogonal to the movement direction of the rear draining member 60B. A plurality of rollers 70 (two in this example) are provided at the right Y1 end of the rear draining member 60B, and a plurality (two in this example) are provided at the left Y2 end of the rear draining member 60B. A plurality of rollers 70 provided at the right Y1 end of the rear draining member 60B are arranged at intervals in the movement direction of the draining member 60 (specifically, the front-rear direction X). The rollers 70 include first rollers 71 and second rollers 72 .

The first roller 71 rolls on the first rail. Specifically, as shown in FIG. 10, the first roller 71 attached to the rear draining member 60B rolls on the surface of the upper side Z1 of the first rear rail 50B1 (for example, the projecting portion 50B1a). It moves (rolls) along rail 50B1. The first roller 71 is provided so as to protrude from the rear drain member 60B to the outside in the rail facing direction, and is cantilevered by the rear drain member 60B. Specifically, the first roller 71 is provided so as to protrude from the rear draining member 60B to one side (for example, the right side Y1) in the left-right direction Y. As shown in FIG.

The first roller 71 and the first rail 50B1 for rear use are configured to restrict the movement of the first roller 71 with respect to the first rail 50B1 for rear use in the rail facing direction (specifically, the horizontal direction Y). The first roller 71 and the rear first rail 50B1 are configured to position the rear draining member 60B in the horizontal direction Y. As shown in FIG. Specifically, the first roller 71 includes a concave portion 71a.

The concave portion 71a is a portion into which the protruding portion 50B1a (convex portion) of the first rail (specifically, the first rail 50B1 for rear use) enters. The first roller 71 having the concave portion 71a has, for example, a drum shape. More specifically, the first roller 71 having the recessed portion 71a has a drum-like shape about an axis extending in the horizontal direction Y. As shown in FIG. The concave portion 71a is formed so that the diameter of the first roller 71 increases from the central portion of the first roller 71 in the horizontal direction Y toward the outer side (right side Y1 and left side Y2) of the first roller 71 in the horizontal direction Y. It is a constructed part.

The configuration for restricting the movement of the first roller 71 in the left-right direction Y with respect to the first rail 50B1 for rear use may not be the concave portion 71a and the projecting portion 50B1a (convex portion). For example, the first roller 71 may be provided with a convex portion, and the rear first rail 50B1 may be provided with a concave portion. For example, a roller 70 contacting the right side Y1 surface of the first rear rail 50B1 and a roller 70 contacting the left side Y2 surface of the first rear rail 50B1 may be provided (not shown). In this case, the plurality of rollers 70 may be arranged so as to sandwich the first rail 50B1 for rear use from the left-right direction Y (so that the rotation axis of each roller 70 extends in the up-down direction Z). The plurality of rollers 70 may be arranged so as to form, for example, a V shape when viewed from the front-rear direction X (so that the rotation axis of each roller 70 is inclined with respect to the up-down direction Z).

The second roller 72 rolls on the second rail. Specifically, the second roller 72 attached to the rear draining member 60B rolls on the surface of the upper side Z1 of the second rear rail 50B2 (for example, the plane portion 50B2b), and moves along the second rear rail 50B2. to roll (roll). The second roller 72 is provided so as to protrude from the draining member 60 to the outside in the direction facing the rail, and is cantilevered by the rear draining member 60B. Specifically, the second roller 72 is provided so as to protrude from the rear draining member 60B to the outside in the left-right direction Y and to the side opposite to the side on which the first roller 71 is provided (for example, the left side Y2). .

It is preferable that the second roller 72 and the second rail 50B2 for rear use are configured to allow the thermal expansion of the draining member 60 and to prevent the draining member 60 from running poorly. More specifically, the rear draining member 60B thermally expands in the rail-facing direction (specifically, the horizontal direction Y) due to heat radiation from the cast piece 21b (see FIG. 1). Therefore, if the movement of the second roller 72 in the left-right direction Y with respect to the second rail 50B2 for rear use is restricted, the second roller 72 may be pushed against the second rail 50B2 for rear use. may become difficult to roll. Then, it becomes difficult for the rear draining member 60B to move smoothly in the front-rear direction X (they become twisted and cause poor running). It is preferable that the second roller 72 and the second rail 50B2 for rear use be configured so as to suppress running failure due to thermal expansion of the rear draining member 60B. Specifically, the second roller 72 and the second rail 50B2 for rear use are arranged so as to allow the second roller 72 to move in the rail opposing direction (specifically, the horizontal direction Y) with respect to the second rail 50B2 for rear use. Configured. More specifically, as described above, the rear second rail 50B2 includes the plane portion 50B2b. Further, the second roller 72 is columnar or cylindrical (flat roller) centered on an axis extending in the rail-facing direction (specifically, the left-right direction Y).

The structure that allows the movement of the second roller 72 in the left-right direction Y with respect to the second rail 50B2 for rear use may not be the second roller 72 that is a flat roller and the flat portion 50B2b. For example, if the flat surface portion 50B2b of the second rail 50B2 for rear use is sufficiently wide in the horizontal direction Y, even if the second roller 72 is not a flat roller, the second roller 72 in the horizontal direction Y with respect to the second rail 50B2 for rear use may not be a flat roller. Movement may be permitted. For example, even if the second rail 50B2 for rear use does not have the flat portion 50B2b, if the second roller 72 is a flat roller, the movement of the second roller 72 in the horizontal direction Y with respect to the second rail 50B2 for rear use is allowed. may be Specifically, for example, even if the upper Z1 portion of the second rail for rear 50B2 has the same shape as the projecting portion 50B1a of the first rail for rear 50B1, if the second roller 72 is a flat roller, the second rail for rear In some cases, the movement of the second roller 72 in the left-right direction Y with respect to 50B2 is permitted. In this case, the second rail 50B2 for rear use and the second roller 72 are in point contact when viewed from the front-rear direction X. is allowed to move in the horizontal direction Y.

The driving mechanism 80 drives the draining member 60 with respect to the chamber base portion 31a, as shown in FIG. The driving mechanism 80 moves the draining member 60 to any position within the movable range of the draining member 60 not stepwise but continuously. The drive mechanism 80 causes the draining member 60 to follow the draining object 21 so as to provide a gap between the draining object 21 and the draining member 60 . More specifically, the driving mechanism 80 causes the draining member 60 to follow the draining object 21 so that the size of the gap between the draining object 21 and the draining member 60 is within a predetermined range. The drive mechanism 80 drives the rear draining member 60B, the right draining member 60C, and the left draining member 60D (three draining members 60). The drive mechanism 80 includes a rear drive mechanism 81 and a left and right drive mechanism 85 .

The rear driving mechanism 81 drives the rear draining member 60B. A plurality of rear drive mechanisms 81 (two in the example shown in FIG. 2) are provided. For example, a rear driving mechanism 81 connected to the right side Y1 portion of the rear side draining member 60B and a rear driving mechanism 81 connected to the left side Y2 portion of the rear side draining member 60B are provided. Note that only one rear drive mechanism 81 may be provided. The rear drive mechanism 81 includes a rear drive section 82 (drive section) and a rear drive transmission section 83 (drive transmission section).

The rear driving portion 82 (driving portion) is an actuator that drives the draining member 60 (more specifically, the rear draining member 60B). The rear drive unit 82 is preferably arranged in a favorable environment, and is preferably arranged in a position that facilitates maintenance. Here, as shown in FIG. 1, the inside of the chamber 31 is an environment in which thermal radiation from the cast slab 21b is received and water is scattered. Therefore, as shown in FIG. 2 , the rear drive section 82 is arranged outside the chamber 31 . The rear drive unit 82 may be arranged on the rear side X2, the front side X1, the right side Y1, or the left side Y2 relative to the chamber 31 . For example, one casting mold 13 may be provided for one tundish 11 shown in FIG. 1, and one strand 21b may be sent out (when there is one strand). In this case, there are usually spaces on the front side X1, the rear side X2, the right side Y1, and the left side Y2 of the chamber 31 in which the rear driving section 82 shown in FIG. 2 can be arranged. On the other hand, a plurality of molds 13 may be provided for one tundish 11 shown in FIG. 1, and a plurality of slabs 21b may be sent out (multi-strand case). In this case, next to one strand (eg, right Y1 and/or left Y2), there are adjacent strands. In this case, normally, the space in which the rear drive unit 82 shown in FIG. . The rear drive unit 82 is, for example, an extendable cylinder. The rear drive unit 82 may be an electric cylinder or a hydraulic cylinder. The rear drive unit 82 is driven to extend and contract in the front-rear direction X, for example.

The rear drive transmission portion 83 (drive transmission portion) transmits the driving force of the rear drive portion 82 to the draining member 60 (more specifically, the rear draining member 60B). The rear drive transmission portion 83 is connected to the rear drive portion 82 and the rear drain member 60B. The rear drive transmission portion 83 includes a rear rod 83a (rod) and a rear rod guide 83b.

The rear rod 83a is connected to the rear driving portion 82 and the rear draining member 60B. The rear rod 83a is a rod-shaped member. The rear rod 83 a is simpler, easier to maintain, and can withstand the harsh environment inside the chamber 31 than a complicated mechanism such as a chain. The rear rod 83 a is arranged to pass through the chamber 31 . More specifically, the rear rod 83a is arranged to pass through the chamber wall 31d in the front-rear direction X. As shown in FIG. For example, the longitudinal direction of the rear rod 83a is the front-rear direction X. As shown in FIG. The rear X2 end of the rear drive transmission portion 83 is connected to the rear drive portion 82 . The front X1 end of the rear drive transmission portion 83 is connected to the rear drain member 60B.

The rear rod guide 83b supports the rear rod 83a. The rear rod guide 83b supports the rear rod 83a movably in the direction in which the rear rod 83a is to be moved (for example, the front-rear direction X). The rear rod guide 83b restricts movement of the rear rod 83a in a direction different from the direction in which the rear rod 83a is to be moved (restricts movement). Specifically, as shown in FIG. 3, the rear rod guide 83b limits the movement of the rear rod 83a to the lower side Z2 by supporting the rear rod 83a from the lower side Z2. For example, the rear rod guide 83b includes a roller member rotatable in the front-rear direction X (rotatable about a rotation axis extending in the left-right direction Y).

Note that the rear drive transmission portion 83 shown in FIG. 2 may be configured in any way as long as the driving force can be transmitted from the rear drive portion 82 to the rear draining member 60B (the same applies to the left and right drive transmission portion 87). For example, the configuration of the rear drive transmission portion 83 can be variously modified according to the arrangement space of the rear drive transmission portion 83, the relative position between the rear drive portion 82 and the rear draining member 60B, and the like.

The left and right driving mechanism 85 drives the right drainage member 60C and the left drainage member 60D. Normally, the center (or approximate center) of the draining object 21 in the left-right direction Y is located at the strand center Sc (see FIG. 6) and does not change during casting. Therefore, the left/right driving mechanism 85 is configured to interlock the right draining member 60C and the left draining member 60D so that the center position of the right draining member 60C and the left draining member 60D in the horizontal direction Y is not changed. The right and left drive mechanism 85 may drive the right drain member 60C and the left drain member 60D independently. A case where the right and left drive mechanism 85 interlocks the right drain member 60C and the left drain member 60D will be described below. The left/right drive mechanism 85 includes a left/right drive portion 86 (drive portion) and a left/right drive transmission portion 87 (drive transmission portion).

The left/right drive section 86 is configured substantially in the same manner as the rear drive section 82 . The difference between the left and right drive section 86 and the rear drive section 82 will be described. The left and right driving section 86 is an actuator that drives the right draining member 60C and the left draining member 60D. The actuator for driving the right drain member 60C and the actuator for driving the left drain member 60D are shared by one left/right drive unit 86 (the same applies to the left/right drive transmission unit 87). In this case, the configuration of the drive mechanism 80 can be simplified.

The left/right drive transmission portion 87 is configured substantially in the same manner as the rear drive transmission portion 83 . The difference between the left and right drive transmission portion 87 and the rear drive transmission portion 83 will be described. The left/right drive transmission portion 87 is connected to the left/right drive portion 86, the right drain member 60C, and the left drain member 60D. The left/right drive transmission portion 87 includes a left/right rod 87a (rod) and a left/right rod guide 87b.

The left/right rod 87a is connected to the left/right drive portion 86 and the right drain member 60C, and is connected to the left/right drive portion 86 and the left drain member 60D. The left and right rod 87a has a branched shape, for example, a Y shape when viewed from the up-down direction Z. As shown in FIG. The left/right rod 87a includes a driving portion side rod 87a1, a rod branch portion 87a2, a draining member side rod 87a3, and a rod length adjusting portion 87a4.

The driving portion-side rod 87 a 1 is connected to the left/right driving portion 86 . The drive section side rod 87a1 is arranged to penetrate the chamber 31 (more specifically, the chamber wall 31d). For example, the longitudinal direction of the driving portion side rod 87a1 is the front-rear direction X. As shown in FIG.

The rod branching portion 87a2 transmits (divides) the driving force transmitted from the left and right driving portion 86 to the driving portion side rod 87a1 to the left and right draining member side rods 87a3 and 87a3. For example, the rod branch portion 87a2 is connected to the front side X1 end portion of the driving portion side rod 87a1.

The draining member-side rod 87a3 is connected to the rod branch portion 87a2 and the draining member 60. As shown in FIG. The draining member-side rods 87a3 are provided one each in the left-right direction Y (two in total). Each of the left and right draining member side rods 87a3, 87a3 is connected to the rod branch portion 87a2. More specifically, the rear X2 end portions of the draining member side rods 87a3 and 87a3 are rotatably connected to the rod branch portion 87a2. The draining member side rod 87a3 on the right side Y1 is connected (more specifically, rotatably connected) to the right draining member 60C. The draining member side rod 87a3 on the left side Y2 is connected (more specifically, rotatably connected) to the left draining member 60D. The draining member side rod 87 a 3 is arranged inside the chamber 31 . The draining member side rod 87a3 on the right side Y1 is arranged so as to be inclined with respect to the front-rear direction X so that it is arranged on the right side Y1 toward the front side X1. The draining member side rod 87a3 on the left side Y2 is arranged so as to be inclined with respect to the front-rear direction X so that it is arranged on the left side Y2 toward the front side X1. When the left and right driving portion 86 is driven in the front-back direction X, the left and right draining member side rods 87a3 and 87a3 interlock symmetrically or substantially symmetrically in the left-right direction Y about the strand center Sc (see FIG. 6).

The rod length adjusting portion 87a4 is for adjusting the movement of the left and right draining member side rods 87a3 and 87a3 so that they are symmetrical in the horizontal direction Y as much as possible. The rod length adjusting portion 87a4 is for adjusting the length of the draining member side rod 87a3. The rod length adjusting portion 87a4 is provided on at least one of the left and right draining member side rods 87a3, 87a3, and is provided on both in the example shown in FIG. For example, the rod length adjusting portion 87a4 is a turnbuckle or the like. When the rod length adjusting portion 87a4 is rod-shaped, the rod length adjusting portion 87a4 may be included in the left/right rod 87a. Note that the length of at least one of the two rear rods 83a may be adjusted by a member similar to the rod length adjusting portion 87a4.

The left/right rod guide 87b supports the left/right rod 87a, and more specifically, supports the drive unit side rod 87a1. The left-right rod guide 87b supports the drive section-side rod 87a1 so as to be movable in the direction in which the drive section-side rod 87a1 is to be moved (for example, the front-rear direction X). The left/right rod guide 87b restricts movement of the driving portion-side rod 87a1 in a direction different from the direction in which the driving portion-side rod 87a1 is to be moved (restrains movement). Specifically, for example, the left/right rod guide 87b includes a plurality of (four in FIG. 2) guide rollers 87b1. The guide roller 87b1 is rotatable in the front-rear direction X. As shown in FIG. The vertical direction Z is the direction in which the rotation axis of the guide roller 87b1 extends. For example, the plurality of guide rollers 87b1 restrict the movement of the driving portion-side rod 87a1 in the horizontal direction Y, and specifically, are arranged so as to sandwich the driving portion-side rod 87a1 from the horizontal direction Y.

The control device 90 controls the position of the draining member 60 based on the state of the draining object 21 shown in FIG. For example, the control device 90 includes a mold information detection unit 91, a feed amount detection unit 93, a gap detection unit 95, and a control unit 97 (first control unit, second control unit, third control unit). .

The template information detection unit 91 is used to predict the dimensions of the draining object 21 (details will be described later). The feeding amount detection unit 93 detects the position in the vertical direction Z of the draining object 21 with respect to the chamber base portion 31a. The feed amount detection unit 93 detects the feed amount (withdrawal amount) of the draining object 21 from the mold 13 .

The gap detector 95 detects the size of the gap between the draining member 60 and the draining object 21 . For example, the gap detector 95 is attached to the draining member 60 and detects the distance to the draining object 21 in a non-contact manner. For example, the gap detector 95 may detect gap information (for example, image information) from a position distant from the draining member 60 and the draining object 21 . If the size of the gap is predicted (described later) based on the mold information detection section 91 and the feed amount detection section 93, the gap detection section 95 may not be provided.

The control unit 97 (first control unit, second control unit, third control unit) drains the chamber base 31a so that the size of the gap between the draining object 21 and the draining member 60 is within a predetermined range. Control the position of member 60 . The control unit 97 may control the position of the draining member 60 based on the predicted dimensions (predicted width dimension and predicted thickness dimension) of the draining object 21 (details will be described later). The control section 97 may control the position of the draining member 60 based on the detection result of the gap detection section 95 (details will be described later). The control unit 97 may control the position of the draining member 60 based on the predicted size of the draining object 21 and the detection result of the gap detection unit 95 . The control unit 97 controls the position of the draining member 60 by controlling the drive mechanism 80 (details will be described later).

(activation)
Drainer 20 is configured to operate as follows.

(Before reaching the draining object 21)
The driving mechanism 80 brings the draining member 60 into the fully closed state before the draining object 21 reaches (details are described above). The details of this operation are as follows. A feed amount detection unit 93 detects the feed amount of the draining object 21 and outputs the detected value to the control unit 97 . The control unit 97 determines whether it is "before arrival of the object 21 to be drained" or "after arrival of the object 21 to be drained" from the feeding amount of the object 21 to be drained. When the control unit 97 determines that it is "before the draining object 21 reaches", the control unit 97 controls the drive mechanism 80 so that the draining member 60 is fully closed. Then, as shown in FIG. 13, the draining member 60 is fully closed. Specifically, for example, the front side draining member 60A and the rear side draining member 60B are closed in the front-rear direction X. As shown in FIG. For example, the right drain member 60C and the left drain member 60D may be closed in the horizontal direction Y. The chamber opening 31b (see FIG. 2) is blocked by the draining member 60 being in a fully closed state. Therefore, the water in the upper side Z1 of the draining member 60 is prevented or suppressed from flowing down from the chamber opening 31b. In this example, a draining member 60 for draining the draining object 21 is used as a member for closing the chamber opening 31b. Therefore, a member separate from the draining member 60 for closing the chamber opening 31b and a device for driving this separate member are not required.

(After arrival of the draining object 21)
The drive mechanism 80 shown in FIG. 1 opens the draining member 60 when the draining object 21 reaches the draining member 60 and arranges the draining member 60 so as to surround the draining object 21 . The details of this operation are as follows. When the distance in the vertical direction Z between the bottom Z2 end of the draining object 21 and the draining member 60 becomes equal to or less than a predetermined distance, the control unit 97 determines that "after the draining object 21 reaches". In this case, the controller 97 controls the driving mechanism 80 to open the draining member 60 . By this control, the rear draining member 60B shown in FIG. 2 moves to the rear side X2. Further, depending on the width of the draining object 21, the right draining member 60C may move in the horizontal direction Y, and the left draining member 60D may move in the horizontal direction Y. Then, the controller 97 shown in FIG. 1 controls the drive mechanism 80 so that the draining member 60 is arranged so as to surround the draining object 21 . Further, the controller 97 controls the driving mechanism 80 so that the size of the gap between the draining object 21 and the draining member 60 is within a predetermined range.

When the draining object 21 moves further to the lower side Z2, the lower Z2 end of the draining object 21 passes through the area (space) surrounded by the draining member 60, passes through the chamber opening 31b, and exits from the draining device 20. also moves to the lower side Z2.

(Following operation)
During the operation of the draining device 20, the position of the surface of the draining object 21 (for example, the right surface of the draining object 21y1, etc.) with respect to the chamber base portion 31a may change. An example of why this change occurs is as follows. The dimension of the dummy bar 21a differs depending on the part. For example, the dummy bar main body 21a1 and the dummy bar head 21a2 have different thicknesses. Also, the thickness of the dummy bar 21a differs from that of the cast slab 21b. In addition, the dimensions of the slab 21b may be gradually increased or decreased by changing the dimensions of the mold 13 (gradually increasing or decreasing) during continuous casting by the continuous casting equipment 1 . Specifically, for example, when the short-side copper plate of the mold 13 is slid in the left-right direction Y, the width of the slab 21b changes. The thickness of the slab 21b is not usually changed during continuous casting, but may be changed during continuous casting. If the slab 21b meanders in the horizontal direction Y or bends in the front-rear direction X during continuous casting, the position of the surface of the slab 21b with respect to the chamber base portion 31a may change.

When the position of the surface of the draining object 21 with respect to the chamber base portion 31a changes, the drive mechanism 80 causes the draining member 60 to follow the draining object 21 . More specifically, the drive mechanism 80 drives the draining member 60 with respect to the chamber base portion 31a, and the draining member 60 is attached to the draining object 21 so as to provide a gap between the draining object 21 and the draining member 60. follow. Even if the position of the surface of the draining object 21 with respect to the chamber base portion 31a changes, the control unit 97 controls the drive mechanism so that the size of the gap between the draining object 21 and the draining member 60 continues to fall within a predetermined range. control 80; As a result, the draining performance of the draining device 20 is maintained. At this time, the draining member 60 is brought as close to the draining object 21 as possible, thereby further improving the draining performance. Since the position of the draining member 60 is controlled so that a gap is formed between the draining member 60 and the draining object 21, contact of the draining member 60 with the draining target 21 is suppressed, and the draining member 60 is damaged (including wear). ) is suppressed, and the frequency of replacement of the draining member 60 can be suppressed.

The control unit 97 controls the position of the draining member 60 by controlling the drive mechanism 80 . In this control, the position of the draining member 60 (relative to the rail 50) with respect to the chamber base 31a shown in FIG. 2 must be detected. For example, the position of the draining member 60 may be detected from information regarding the drive mechanism 80 . Specifically, for example, when the rear driving section 82 (or the left and right driving section 86) is a telescopic cylinder, the position of the draining member 60 may be detected from the amount of expansion and contraction of the rear driving section 82. The expansion/contraction amount of the rear drive unit 82 may be detected by a linear detector such as a differential transformer. When the rear drive unit 82 is an electric cylinder, the expansion/contraction amount of the rear drive unit 82 may be detected from the rotation speed of the electric motor, and the expansion/contraction amount of the rear drive unit 82 is detected from the rotation speed of the feed screw shaft. may The position of the draining member 60 may be detected from position information of the rear rod 83a (or the left and right rods 87a). For example, the position of the rear rod 83a may be detected by a linear detector such as a differential transformer.

(Prediction of dimensions of draining object 21)
Since the area around the draining member 60 is hot and splashes with water, it is assumed that it is difficult to directly detect the size of the draining object 21 surrounded by the draining member 60 . It is usually difficult to provide the gap detector 95 shown in FIG. Therefore, the control unit 97 predicts the dimension of the draining object 21 passing through the portion surrounded by the draining member 60 based on the information regarding the dimension of the mold 13 and the feeding amount of the draining object 21 . Then, the controller 97 successively controls the position of the draining member 60 based on the predicted dimension of the draining object 21 .

Prediction of the dimension of the draining object 21 is performed, for example, as follows. The control unit 97 controls the draining member 60 shown in FIG. The dimension (predicted dimension) of the cross section 21c of the draining object 21 at the surrounded position is predicted (calculated). The dimensions predicted by the controller 97 include a predicted width dimension and a predicted thickness dimension.

(Estimated width dimension)
The predicted width dimension is the dimension of the long side of the cross section 21c of the draining object 21 at a position surrounded by the draining member 60 as viewed in the vertical direction Z (specifically, the dimension in the horizontal direction Y). The control unit 97 (see FIG. 1) provides information (width information) on the dimension of the long side of the cross section 21c of the draining object 21, and the movement of the draining object 21 in the feed direction (specifically, downward Z2). Predicted width dimension is predicted based on information (feed amount information). The control unit 97 (see FIG. 1) determines the positions of the draining members 60 (specifically, the right draining member 60C and the left draining member 60D) facing the short sides of the cross section 21c of the draining object 21 based on the predicted width dimension. to control.

[Example 1 of width information] When the draining object 21 at a position surrounded by the draining member 60 is the dummy bar 21a (see FIG. 1), width information (information on the dimension of the long side of the cross section 21c of the draining object 21) is known information about the width of the dummy bar 21a shown in FIG. 1, for example. As described above, the width of the dummy bar 21a varies depending on the portion of the dummy bar 21a. Therefore, information on the width of each part of the dummy bar 21a is set in the control unit 97 in advance (before the start of continuous casting).

[Example 2 of Width Information] When the draining object 21 surrounded by the draining member 60 shown in FIG. 2 is the slab 21b (see FIG. 1), the width information is as follows. [Example 2a of width information] The width information is, for example, the dimensions of the mold 13 shown in FIG. The dimensions of the template 13 are detected by the template information detector 91 . The mold information detection unit 91 detects, for example, information about the positions of the copper plates on the short sides of the mold 13 . [Example 2b of width information] There are cases where the relationship between the width of the dummy bar 21a and the width of the slab 21b is predetermined. In this case, the width information may be the width (known width) of the slab 21b determined based on the width of the dummy bar 21a.

[Example of Feeding Amount Information] Information (feeding amount information) regarding the movement of the draining object 21 in the feeding direction (downward Z2) is detected by the feeding amount detector 93 . The feeding amount detection unit 93 may detect the feeding amount information from, for example, the number of rotations of the roll 15 that rotates with the movement of the draining object 21 .

(Estimated thickness dimension)
The predicted thickness dimension is the short side dimension (specifically, the dimension in the front-back direction X) of the cross section 21c of the draining object 21 at the position surrounded by the draining member 60 shown in FIG. be. The control unit 97 (see FIG. 1) provides information (thickness information) on the dimension of the short side of the cross section 21c of the draining object 21 and the movement of the draining object 21 in the feed direction (specifically, downward Z2). A predicted thickness dimension is predicted based on the information about and. The control unit 97 (see FIG. 1) controls the position of the draining member 60 (specifically, the rear draining member 60B) facing the long side of the cross section 21c of the draining object 21 based on the predicted thickness dimension. . The thickness information is set and detected in the same manner as the width dimension described above. The thickness of the slab 21b is usually a fixed value (a value that does not change during casting). As such, the thickness information may be a known fixed value.

(For direct detection of gap size)
When the gap detector 95 shown in FIG. 1 is provided, the controller 97 determines the size of the gap between the draining member 60 and the draining object 21 based on the size of the gap detected by the gap detector 95. The position of the draining member 60 may be controlled so that it falls within a predetermined range.

(Effect of the first invention)
The effects of the draining device 20 shown in FIG. 1 are as follows. The draining device 20 is provided in the continuous casting facility 1 and drains the drained object 21 . The draining device 20 includes a chamber base portion 31 a (base portion), a draining member 60 and a drive mechanism 80 . As shown in FIG. 2 , the draining member 60 is movably provided with respect to the chamber base portion 31 a and can be arranged so as to surround the draining object 21 .

[Configuration 1] The drive mechanism 80 drives the draining member 60 with respect to the chamber base portion 31a, and the draining member 60 follows the draining object 21 so as to provide a gap between the draining object 21 and the draining member 60. Let

In the above [Configuration 1], the draining member 60 is arranged so that a gap is provided between the draining object 21 and the draining member 60 even if the position or size of the draining object 21 with respect to the chamber base portion 31a changes. The object 21 is tracked. Therefore, even if the position or size of the draining object 21 with respect to the chamber base portion 31a changes, the draining performance of the draining member 60 can be maintained. As a result, for example, when changing the size of the draining object 21, it is not necessary to replace the draining member 60 according to the changed size. In addition, even if the position and dimensions of the draining object 21 with respect to the chamber base portion 31a change, the state in which the gap is provided between the draining object 21 and the draining member 60 is maintained, and the draining object of the draining member 60 is maintained. 21 can be suppressed. Therefore, damage to the draining member 60 can be suppressed.

(Effect of the second invention)
[Configuration 2] The driving mechanism 80 keeps the draining member 60 closed until the draining object 21 reaches the draining member 60 (see FIG. 13). The driving mechanism 80 opens the draining member 60 when the draining object 21 reaches the draining member 60 and arranges the draining member 60 so as to surround the draining object 21 .

In the above [Configuration 2], the draining member 60 is closed until the draining object 21 reaches the draining member 60 (see FIG. 13). Therefore, it is possible to suppress the water from flowing down from the passage of the draining object 21 (specifically, the chamber opening 31b). In the above [configuration 2], the draining member 60 is used both for shielding the passage of the draining object 21 (specifically, the chamber opening 31b) and for draining the draining object 21 . Therefore, the draining device 20 does not need to be provided with a member for shielding the passage of the draining object 21 , separate from the draining member 60 . In addition, the draining device 20 does not need to have a device for driving a member that blocks the passage of the draining object 21 , apart from the draining member 60 .

(Effect of the third invention)
When viewed from the feed direction (the direction from the upper side Z1 to the lower side Z2), which is the direction in which the draining target 21 moves with respect to the chamber base portion 31a, the cross section of the draining target 21 surrounded by the draining member 60 is rectangular. is.

[Configuration 3] Four draining members 60 are provided so as to be able to face four sides of the cross section 21c of the draining object 21 . A drive mechanism 80 drives the three draining members 60 .

With the above [Configuration 3], the draining member 60 can reliably drain the draining object 21 having the rectangular cross section 21c. In addition, when the position of one side of the cross section of the draining object 21 with respect to the chamber base portion 31a does not change, the drive mechanism 80 uses only three draining members 60 (specifically, the rear draining member 60B, the right draining member 60C, and the left drainage member 60D).

(Effect of the fourth invention)
[Configuration 4] The draining device 20 includes a control section 97 (see FIG. 1) (first control section) that controls the position of the draining member 60 with respect to the chamber base portion 31a. Based on information (width information) on the dimension of the long side of the cross section 21c of the draining object 21 and information on the movement of the draining object 21 in the feed direction (feed amount information), the control unit 97 predicts the width Predict dimensions. The predicted width dimension is the dimension of the long side of the cross section 21 c of the draining object 21 at the position surrounded by the draining member 60 . The control unit 97 (see FIG. 1) controls the positions of the draining members 60 (the right draining member 60C and the left draining member 60D) facing the short sides of the cross section 21c of the draining object 21 based on the predicted width dimension.

With the above [Configuration 4], the position of the draining member 60 facing the short side of the cross section 21c is controlled according to the dimension of the long side of the cross section 21c predicted by the controller 97 (see FIG. 1). Therefore, the control unit 97 (see FIG. 1) determines the size of the gap between the surfaces (the right surface 21y1 of the draining object and the left surface 21y2 of the draining object) forming the short sides of the cross section 21c shown in FIG. can be well controlled.

(Effect of the fifth invention)
[Configuration 5] The draining device 20 shown in FIG. 2 includes a control section 97 (see FIG. 1) (second control section) for controlling the position of the draining member 60 with respect to the chamber base portion 31a. The control unit 97 predicts based on information (thickness information) on the dimension of the short side of the cross section 21c of the draining object 21 and information on the movement of the draining object 21 in the feed direction (feed amount information). Predict thickness dimensions. The predicted thickness dimension is the short side dimension of the cross section 21 c of the draining object 21 at the position surrounded by the draining member 60 . The control unit 97 (see FIG. 1) controls the position of the draining member 60 facing the long side of the cross section 21c of the draining object 21 based on the predicted thickness dimension.

With the above [Configuration 5], the position of the draining member 60 facing the long side of the cross section 21c is controlled according to the dimension of the short side of the cross section 21c predicted by the controller 97 (see FIG. 1). Therefore, the controller 97 (see FIG. 1) can accurately control the size of the gap between the surface (rear surface 21x2 of the draining object) forming the long side of the cross section 21c shown in FIG. .

(Effect of the sixth invention)
[Structure 6] As shown in FIG. 1, the drainer 20 includes a gap detector 95 and a controller 97 (third controller). The gap detector 95 detects the size of the gap between the draining member 60 and the draining object 21 . The controller 97 controls the position of the draining member 60 with respect to the chamber base 31 a based on the size of the gap detected by the gap detector 95 .

With the above [configuration 6], the control unit 97 accurately controls the size of the gap between the draining member 60 and the draining object 21 based on the size of the gap actually detected by the gap detection unit 95. can be done.

(Effect of the seventh invention)
[Structure 7] As shown in FIG. 9, the draining device 20 includes a jetting portion 60Bd. The ejection part 60Bd ejects the compressed gas G obliquely upward from the end of the draining member 60 on the side of the draining object 21 toward the draining object 21 .

According to the above [Configuration 7], the compressed gas G ejected from the ejection part 60Bd can blow away the water that is about to drop from the gap between the draining member 60 and the draining object 21. FIG. In addition, the compressed gas G ejected from the ejection part 60Bd can blow off the water flowing down along the surface of the draining object 21 . Therefore, the draining performance of the draining device 20 can be improved as compared with the case where the ejection part 60Bd for ejecting the compressed gas G obliquely upward toward the draining object 21 is not provided.

(Effect of the eighth invention)
[Configuration 8] The ejection part 60Bd shown in FIG. 5 ejects the compressed gas G (see FIG. 9) to the area where the draining member 60 and the draining object 21 face each other, and the draining member 60 and the draining object 21 face each other. It is possible to stop the injection of the compressed gas G to the area that does not need to be sprayed.

In the above [configuration 8], by stopping the ejection of the compressed gas G to the area where the draining member 60 and the draining object 21 do not face each other, the consumption of the compressed gas G can be reduced. It is possible to reduce the energy consumption of a generating device (for example, a compressor, etc.).

(Effect of the ninth invention)
[Arrangement 9] As shown in FIG. 9, the draining member 60 includes a draining member body portion 60Ba and a gas acceleration portion 60Bc. The gas speed increasing portion 60Bc is provided so as to extend obliquely upward toward the draining object 21 from the end portion of the draining member main body portion 60Ba on the side of the draining object 21 . The ejection part 60Bd is arranged so as to eject the compressed gas G from a position Z2 below the gas acceleration part 60Bc toward the gap between the draining object 21 and the gas acceleration part 60Bc.

According to the above [Configuration 9] and [Configuration 6], the compressed gas G ejected by the ejection portion 60Bd flows along the gas acceleration portion 60Bc and fills the gap between the draining object 21 and the gas acceleration portion 60Bc. pass. At this time, the gap between the draining object 21 and the gas acceleration section 60Bc gradually narrows, and the flow velocity of the compressed gas G increases. Therefore, the compressed gas G can further blow away the water that is about to drop from the gap between the draining member 60 and the draining object 21 . In addition, the compressed gas G can further blow off the water flowing down along the surface of the object 21 to be drained. Therefore, the draining performance of the draining device 20 can be further improved.

(Effect of the tenth invention)
[Configuration 10] The draining device 20 includes a gas passage 60Be through which the compressed gas G passes. The gas passage 60Be is provided inside the draining member 60. As shown in FIG.

In the above [Configuration 10], the gas passage 60Be is provided inside the draining member 60, so a space for the gas passage 60Be can be easily secured. In addition, compared to the case where the gas passage 60Be and the drain member 60 are provided separately, the gas passage 60Be and the drain member 60 can be made smaller, and the drain device 20 (see FIG. 1) can be made smaller. Therefore, the draining device 20 can be easily installed in a narrow space. In addition, since the draining member 60 is cooled from the inside by the compressed gas G passing through the gas passage 60Be, thermal deformation of the draining member 60 due to radiant heat from the draining object 21 can be suppressed.

(Effect of the eleventh invention)
[Arrangement 11] The upper surface of the draining member 60 is provided with a draining member inclined surface 60Bb. The draining member inclined surface 60Bb is inclined with respect to the horizontal direction so as to be arranged on the lower side Z2 as the distance from the draining object 21 increases.

[Structure 11] provides the following effects. When the draining object 21 is a slab 21b (see FIG. 1), when the slab 21b breaks out, the molten metal may come into contact with the puddle on the upper surface of the draining member 60, causing a steam explosion. On the other hand, water pooling on the upper surface of the draining member 60 can be suppressed by the draining member inclined surface 60Bb of [Constitution 11]. As a result, steam explosion at breakout can be suppressed. Moreover, the water on the upper surface of the draining member 60 is guided away from the draining object 21 by the draining member inclined surface 60Bb of [Configuration 11]. Therefore, it is possible to prevent the water on the upper surface of the draining member 60 from flowing into the gap between the draining member 60 and the draining object 21 (backflow).

(Effect of the twelfth invention)
[Arrangement 12] As shown in FIG. The track 50 is fixed to the chamber base portion 31a, supports the draining member 60 so as to be continuously movable with respect to the chamber base portion 31a, and is provided so as to extend in the movement direction of the draining member 60 with respect to the chamber base portion 31a.

With the track 50 of [Configuration 12], the drainage member 60 can be continuously movably supported with respect to the chamber base portion 31a with a simple configuration.

(Effect of the thirteenth invention)
The rail 50 and the draining member 60 are arranged above the chamber base 31a Z1. When viewed from the feed direction (the direction from the upper side Z1 to the lower side Z2), which is the direction in which the draining target 21 moves with respect to the chamber base portion 31a, the cross section of the draining target 21 surrounded by the draining member 60 is rectangular. is. A cross section 21c of the draining object 21 has two long sides and two short sides. The draining member 60 includes a long side draining member (rear side draining member 60B) and two short side side draining members (right side draining member 60C and left side draining member 60D). The long side draining member (rear side draining member 60B) can face the surface (rear surface 21x2 of the draining object) forming the long side of the cross section 21c, and is driven by the driving mechanism 80 (see FIG. 2). The two short side draining members (right side draining member 60C and left side draining member 60D) can face the surfaces (draining object right surface 21y1 and draining object left surface 21y2) forming the short sides of the cross section 21c, and the drive mechanism 80 (see FIG. 2).

[Configuration 13] The short-side draining members (right side draining member 60C and left side draining member 60D) are arranged so as to overlap in the vertical direction Z with the long-side side draining members (rear side draining member 60B).

[Configuration 13] allows the short-side draining member (right side draining member 60C and left side draining member 60D) and the long-side draining member (rear side draining member 60B) to move without interfering with each other. As a result, it is possible to perform drainage with cross sections 21c of various dimensions.

(Effect of the fourteenth invention)
[Configuration 14-1] The short-side draining members (right side draining member 60C and left side draining member 60D) are arranged above the long-side draining member (rear side draining member 60B) Z1. The short-side draining members (right side draining member 60C and left side draining member 60D) are arranged above Z1 than the rail 50 (rear rail 50B) that supports the long-side draining member (rear side draining member 60B).

[Configuration 14-2] The rails (right rail 50C and left rail 50D) that support the short side draining member are arranged in the direction in which the short side extends from the movable range of the long side draining member (rear side draining member 60B). (the outer side in the front-rear direction X, for example, the rear side X2).

The following effect can be obtained by the above [Configuration 14-1]. The short-side draining member (right-side draining member 60C and left-side draining member 60D) supports the long-side draining member (rear side draining member 60B) and the long-side draining member 50 (rear rail 50B). It can move in the space of the upper side Z1. Therefore, the long-side draining member (rear side draining member 60B) can be configured to be short (for details, see the description of [Arrangement Example 3a] and [Arrangement Example 3b] above). As a result, the dimension of the draining device 20 in the direction in which the long side of the cross section 21c extends (specifically, the horizontal direction Y) can be reduced.

The following effect can be obtained by the above [Configuration 14-2]. When the long side draining member (rear side draining member 60B) moves, the rails (right rail 50C and left rail 50D) that support the short side draining member and the long side draining member (rear side draining member 60B) and do not interfere.

(Effect of the fifteenth invention)
[Constitution 15] As shown in FIG. A plurality of rail supports 43 are provided so as to extend upward Z1 from the chamber base portion 31a. The rail 50 is arranged so as to span over the plurality of rail supports 43 .

With the above [Configuration 15], the space S43 can be provided between the chamber base portion 31a and the rail 50 . Therefore, it is possible to prevent the water on the chamber base portion 31 a from being blocked by the rail 50 . As a result, deposits (for example, scale) contained in water can be prevented from accumulating on the chamber base portion 31a.

(Effect of the sixteenth invention)
[Configuration 16-1] The draining device 20 having the above [Configuration 12] includes a roller 70. A roller 70 is attached to the draining member 60 and rolls along the rail 50 . The rail 50 includes a first rail (for example, a first rail for rear 50B1) and a second rail (for example, a second rail for rear 50B2). The second rail 50B2 for rear use is arranged with a gap in the opposing rail direction (for example, the horizontal direction Y) between it and the first rail 50B1 for rear use. The rail facing direction (for example, the left-right direction Y) is a horizontal direction that intersects the moving direction of the draining member 60 (for example, the rear side draining member 60B) with respect to the chamber base portion 31a. The rollers 70 include a first roller 71 that rolls on the first rail 50B1 for rear and a second roller 72 that rolls on the second rail 50B2 for rear.

[Arrangement 16-2] As shown in FIG. 10, the first rail 50B1 for rear use and the first roller 71 are arranged in the direction in which the first roller 71 faces the first rail 50B1 for rear use (here, the horizontal direction Y). Configured to restrict movement.

[Arrangement 16-3] The second rail 50B2 for rear use and the second roller 72 are configured to allow movement of the second roller 72 with respect to the second rail for rear use 50B2 in the rail opposing direction (here, the lateral direction Y). be done.

In the above [Configuration 16-2], the movement of the first roller 71 in the horizontal direction Y with respect to the first rail 50B1 for rear use is restricted. Therefore, when the rear draining member 60B is thermally deformed so that the dimension of the rear draining member 60B in the rail facing direction (left-right direction Y) increases, the second roller 72 moves against the second trailing rail 50B2. It tries to move in the opposite direction (horizontal direction Y). At this time, if the movement of the second rollers 72 with respect to the second rail 50B2 for rear use in the rail facing direction (horizontal direction Y) is not permitted, the second rail 50B2 for rear use and the second roller 72 are twisted. Specifically, the rolling of the second roller 72 is not smooth, or the rolling of the second roller 72 becomes impossible. Furthermore, when the second roller 72 tries to move in the rail opposing direction (horizontal direction Y) with respect to the second rail 50B2 for rear use, a reaction force is generated in the first rail 50B1 for rear use and the first roller 71, The first rail 50B1 and the first roller 71 are also twisted. On the other hand, in the above [Configuration 16-3], the second roller 72 is allowed to move in the rail facing direction (horizontal direction Y) with respect to the rear second rail 50B2. Therefore, even if the rear draining member 60B is thermally deformed, it is possible to prevent the rear second rail 50B2 and the second roller 72 from being twisted.

(Effect of the seventeenth invention)
[Configuration 17] In the draining device 20 including [Configuration 16-1], [Configuration 16-2], and [Configuration 16-3], the first rail (for example, the first rail for rear 50B1) and the first roller 71 has a recessed portion 71a having a shape recessed in the vertical direction Z. Of the first rail 50B1 for rear use and the first roller 71, the one different from the one having the concave portion 71a is provided with a projecting portion 50B1a (convex portion) that fits into the concave portion 71a.

With the above [Configuration 17], one first roller 71 can limit the movement of the first rail 50B1 for rear use in the rail facing direction (horizontal direction Y). Therefore, the number of first rollers 71 (the number of parts) can be suppressed.

(Effect of the eighteenth invention)
[Constitution 18] In the draining device 20 having the above [Construction 12], the rail 50 is provided with a convex portion (at least one of the protrusion 50B1a and the protrusion 50B2a) having a convex shape on the upper side Z1.

[Configuration 18] makes it easier for deposits (for example, scale) to fall from the surface of the upper side Z1 of the rail 50 . Therefore, accumulation of deposits on the surface of the upper side Z1 of the rail 50 can be suppressed.

(Effect of the nineteenth invention)
[Arrangement 19] As shown in FIG. The drive mechanism 80 includes a rear drive section 82 (drive section) and a rear drive transmission section 83 (drive transmission section). The rear driver 82 is arranged outside the chamber 31 . The rear drive transmission portion 83 transmits the driving force of the rear drive portion 82 to the draining member 60 (rear side draining member 60B).

[Structure 19] provides the following effects. Since the chamber 31 accommodates the draining member 60, the temperature inside the chamber 31 is high due to the heat from the draining object 21, and it is a poor environment in which water exists before and after water removal. In the above [configuration 19], the rear drive section 82 is arranged outside the chamber 31 . Therefore, the rear drive section 82 can be operated in a better environment than the inside of the chamber 31 . In addition, maintenance of the rear drive unit 82 can be easily performed in a better environment than inside the chamber 31 .

(Effect of the twentieth invention)
[Configuration 20] In the draining device 20 having [Configuration 19], the rear drive transmission section 83 (drive transmission section) includes a rear rod 83a (rod) arranged so as to penetrate the chamber 31 .

[Configuration 20] makes it possible to simplify the configuration of the rear drive transmission section 83 as compared with the case where the rear drive transmission section 83 includes only a complicated mechanism such as a chain. In addition, the rear drive transmission section 83 can be configured to easily withstand the harsh environment inside the chamber 31 .

(Modification)
The above embodiments may be modified in various ways. For example, the arrangement and shape of each component of the above embodiment may be changed. For example, the number of components may vary and some components may not be provided. For example, fixing, coupling, etc. between components may be direct or indirect. For example, what has been described as a plurality of different members or parts may be treated as one member or part. For example, what has been described as one member or portion may be divided into a plurality of different members or portions.

1 continuous casting equipment 20 draining device 21 draining object 21c cross section 31 chamber 31a chamber base (base)
43 rail support 50 rail 50B1 rear first rail (first rail)
50B1a Convex part (projection part)
50B2a Convex portion 50B2 Rear second rail (second rail)
50C1 1st rail for right (1st rail)
50C2 2nd rail for right (2nd rail)
60 draining member 60B rear side draining member (long side draining member)
60Ba, 60Ca Draining member body portion 60Bb, 60Cb Draining member inclined surface 60Bc, 60Cc Gas speed increasing portion 60Bd, 60Cd Ejection portion 60Be Gas passage 60C Right draining member (short side draining member)
60D Left draining member (short side draining member)
70 roller 71 first roller 71a concave portion 72 second roller 80 drive mechanism 82 rear drive section (drive section)
83 Rear drive transmission section (drive transmission section)
83a Rear rod (rod)
86 left and right driving unit (driving unit)
87 Left and right drive transmission section (drive transmission section)
87a left and right rod (rod)
95 gap detection unit 97 control unit (first control unit, second control unit, third control unit)
G Compressed gas

Claims (14)

A draining device provided in a continuous casting facility for draining an object to be drained,
a base;
a draining member that is movably provided with respect to the base portion and that can be arranged to surround the draining object;
a driving mechanism that drives the draining member with respect to the base portion and causes the draining member to follow the draining object so as to provide a gap between the draining object and the draining member;
comprising
drainer. The draining device according to claim 1,
The drive mechanism keeps the draining member in a closed state until the draining object reaches the draining member,
The drive mechanism opens the draining member when the draining object reaches the draining member, and arranges the draining member so as to surround the draining object.
drainer. The draining device according to claim 1 or 2,
When viewed from the feed direction, which is the direction in which the draining object moves with respect to the base portion, the cross section of the draining object surrounded by the draining member is rectangular,
Four of the draining members are provided so as to be able to face four sides of the cross section of the draining object,
The drive mechanism drives the three draining members,
drainer. The draining device according to claim 3,
A first control unit that controls the position of the draining member with respect to the base,
At a position surrounded by the draining member, based on information about the dimension of the long side of the cross section of the draining object and information about the movement of the draining object in the feeding direction. Predicting a predicted width dimension that is the dimension of the long side of the cross section of the draining object,
The first control unit controls the position of the draining member facing the short side of the cross section of the draining object based on the predicted width dimension.
drainer. The draining device according to claim 3 or 4,
A second control unit that controls the position of the draining member with respect to the base portion,
At a position surrounded by the draining member, based on information regarding the dimension of the short side of the cross section of the draining target and information regarding the movement of the draining target in the feeding direction. Predicting a predicted thickness dimension that is the dimension of the short side of the cross section of the draining object,
The second control unit controls the position of the draining member facing the long side of the cross section of the draining object based on the predicted thickness dimension.
drainer. The draining device according to any one of claims 1 to 5,
a gap detection unit that detects the size of the gap between the draining member and the draining object;
a third control unit that controls the position of the draining member with respect to the base portion based on the size of the gap detected by the gap detection unit;
comprising
drainer. The draining device according to any one of claims 1 to 6,
A jetting part for jetting compressed gas obliquely upward from the end of the draining member on the side of the draining object toward the draining object,
drainer. The draining device according to claim 7,
The jetting part jets the compressed gas to a region where the draining member and the draining object face each other, and stops jetting the compressed gas to a region where the draining member and the draining target do not face each other. is possible,
drainer. The draining device according to claim 7 or 8,
The draining member is
a draining member main body;
a gas speed increasing portion provided so as to extend obliquely upward from the end of the draining member main body on the side of the draining object toward the draining object;
with
The ejection section is arranged to eject the compressed gas from a position below the gas acceleration section toward a gap between the drain object and the gas acceleration section.
drainer. The draining device according to any one of claims 7 to 9,
Provided inside the draining member, comprising a gas passage through which the compressed gas passes,
drainer. The draining device according to any one of claims 1 to 10,
The upper surface of the draining member is provided with a draining member inclined surface that is inclined with respect to the horizontal direction so as to be arranged downward as the distance from the draining object increases.
drainer. The draining device according to any one of claims 1 to 11,
A rail fixed to the base portion, continuously movably supporting the draining member with respect to the base portion, and extending in a moving direction of the draining member with respect to the base portion,
drainer. The draining device according to claim 12,
The rail and the draining member are arranged above the base portion,
When viewed from the feed direction, which is the direction in which the draining object moves with respect to the base portion, the cross section of the draining object surrounded by the draining member is rectangular,
The cross section of the draining object has two long sides and two short sides,
The draining member is
a long-side draining member capable of facing the surface forming the long side and driven by the drive mechanism;
two short-side draining members that can face the surfaces forming the short sides and are driven by the drive mechanism;
with
The short-side draining member is arranged so as to vertically overlap the long-side draining member,
drainer. The draining device according to claim 13,
The short-side draining member is arranged above the long-side draining member, and is arranged above the rail supporting the long-side draining member,
The rail supporting the short-side draining member is arranged outside the movable range of the long-side draining member in the direction in which the short side extends,
drainer.

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