JPS6027570Y2 - template - Google Patents

Description

[Detailed description of the invention] This invention is a mold (particularly a mold for a continuous casting machine, equipped with an electromagnetic coil of an electromagnetic stirrer). The electromagnetic coil is directly cooled by the electromagnetic coil, but since the cooling water for the electromagnetic coil must be of extremely high quality, a large amount of cooling water must be treated with high-quality water, and water treatment equipment is required to cool the electromagnetic coil directly. The disadvantage is that the costs involved are extremely high.

This idea was made in order to eliminate the above-mentioned drawbacks of the conventional method.The electromagnetic coil is enclosed in the electromagnetic coil storage chamber and immersed in the flow path of mold cooling water. By passing cooling water through the electromagnetic coil and making the cooling system for the electromagnetic coil independent of the cooling water system for the mold, the aim is to provide a mold that requires a smaller capacity high-grade water treatment equipment than in the past. do.

An embodiment of this invention will be described below with reference to the drawings.

In Figures 1, 2, and 3, reference numeral 1 denotes a mold wall of a continuous casting apparatus, and its outer peripheral surface has a plurality of rib members extending from a position a certain distance below the upper end to a position a certain distance above the lower end. 2 are erected at predetermined intervals in the circumferential direction.

Reference numeral 3 designates a first annular chamber, and its inner wall 3a is spaced apart from the mold wall 1 by a constant distance). The outer wall 3b is reinforced with rib members 2.

A communication hole 3d is formed in the lower end of the outer wall 3b and the upper wall 3c of the first annular chamber 3, and the bottom wall 3e has an extension 4 extending horizontally outward.

Reference numeral 5 denotes an annular cooling chamber formed by a mold wall 1 and an inner wall 3a, both of which are open at its upper and lower ends.

Reference numeral 6 denotes an annular electromagnetic coil storage chamber of the electromagnetic stirrer, in which an annular coil is connected to the inner wall from the upper end of the outer wall 3b of the first annular chamber 3 to a predetermined length downward position, and the inner end surface is closely fixed to the lower position. a bottom wall 6a, and an outer wall 6b having a larger radius than the outer wall 3b.
Consisted of.

The outer wall 6b has a flange portion 7 at its upper end, and this flange portion has a thin wall portion 7a on the inner circumferential side having the same height as the upper wall 3c of the first annular chamber 3, and an outer circumference raised higher than this thin wall portion. It is cut out from the side thick part 7b.

6c is a lid (earthen wall) of the electromagnetic coil storage chamber 6.

8 is a second annular chamber, whose inner wall extends from the above-mentioned lower position to the lower end of the outer wall 3b of the first annular chamber 3, and includes an extension 4 of the bottom wall 3e and a part of the bottom wall 6a of the electromagnetic coil storage chamber 6. are used as a bottom wall and a clay wall, respectively, and an annular outer wall 8a is provided between them concentrically with the outer wall 3b.

A communication hole 8b is formed in the upper part of the outer wall 8a.

Reference numeral 9 denotes an annular first water supply chamber, and the upper end surface and inner end surface of an annular body 9a having an angular cross section are connected to the lower end surface of the bottom wall 6a of the electromagnetic coil storage chamber 6 and the outer wall 8a of the second annular chamber 8, respectively. It is formed by firmly joining by welding or the like.

The first water supply chamber 9 includes the electromagnetic coil storage chamber 6 and its bottom wall 6a.
They communicate through a plurality of communication holes 6d provided in the.

A water supply pipe 10 extends outward in the radial direction from the first water supply chamber 9 and is connected to a water supply pump (not shown).

Note that the communication hole 8b described above is located directly below the first water supply chamber 9.

Reference numeral 11 denotes a ring body whose radius is larger than that of the electromagnetic coil storage chamber 6, whose upper end surface is fixed to the lower surface of the flange portion 7 by welding or the like, and whose lower end surface extends downward from the extension portion 4 by a predetermined length. The annular plate 12 is fixedly supported by bolt means or the like in a watertight manner.

The outer end surface of the extension part 4 is firmly attached to the ring body 11.

By providing this annular body 11, a third annular chamber surrounding the electromagnetic coil storage chamber 6 and the second annular chamber 8 is formed, and the third annular chamber is divided into three chambers.

Reference numerals 13 and 14 denote two partition plates that extend from the upper end to the lower end of the third annular chamber and are spaced apart from each other by a predetermined distance. Annular chamber 8
It is divided into a second water supply chamber 15 communicating with the water supply chamber 15 and a notched annular chamber, and this notched annular chamber is further divided into a first drainage chamber 17 and a second drainage chamber 18 by a notched annular partition plate 16. Ru.

The notched annular partition plate 16 is stretched from the partition plate 13 to the partition plate 14 between the outer wall 6b of the electromagnetic coil storage chamber 6 and the ring body 11 at a position below the upper end of the ring body 11 by a predetermined length. There is.

The first drainage chamber 17 communicates with the electromagnetic coil storage chamber 6 through communication holes 17a at a plurality of locations, and the second drainage chamber 18 communicates with the electromagnetic coil storage chamber 6 through communication holes 17a at a plurality of locations, and the second drainage chamber 18 communicates with the electromagnetic coil storage chamber 6 through a plurality of communication holes 18a in the extension portion 4 serving as the bottom wall. It communicates with the annular chamber of.

Reference numerals 19 and 20 denote a drain port and a water supply port, which are formed at the upper end of the portion of the ring body 11 that forms the second drain chamber 18 and the second water supply chamber 15, respectively.

17b is a drain port of the first drain chamber 17.

The water supply pipe 10 described above passes through the second drainage chamber 18.

21 is a fourth annular chamber, which includes the lower end of the mold wall 1 and the annular body 11.
The first annular plate 12 and the bottom wall 3e are formed as an upper wall and a bottom wall, respectively, and the lower end of the annular cooling chamber 5 is opened and the first annular plate 12 and the bottom wall 3e are formed as an upper wall and a bottom wall, respectively. It communicates with the drainage chamber 18 of No. 2.

The inner end surface of the first annular plate 12 is fixed to the mold wall 1.

Reference numeral 22 designates a fifth annular chamber, in which the upper end of the mold wall 1 and the thick wall portion 7b of the flange portion 7 are connected to the inner and outer walls, respectively, and the lid 6c of the waist electromagnetic coil storage chamber 6 and the second annular plate 23 are connected to the bottom wall, respectively. The first annular chamber 3 communicates with the annular cooling chamber 5 through the communication hole 3d of the upper wall 3c.
The top end is open.

The second annular plate 23 includes an annular mounting seat 24 and the thick portion 7b.
and is fixed to both by means of bolts.

The inner end surface of the second annular plate 23 is fixed to the mold wall 1.

The mounting seat 24 is held by fitting the inner end surface into a circumferential groove formed in the mold wall 1.

Reference numeral A denotes an electromagnetic coil, which is energized via a lead portion 25 that is disposed through the second drainage chamber 18 and connected to a power source (not shown).

In the above configuration, the electromagnetic coil cooling water is force-fed to the annular first water supply chamber 9 through the water supply pipe 10 by a water supply pump (not shown).

The electromagnetic coil cooling water force-fed to the first water supply chamber 9 flows into the electromagnetic coil storage chamber 6 through the plurality of communication holes 6d, and rises inside the electromagnetic coil storage chamber 6 while cooling the electromagnetic coil A. It flows out into the drainage chamber 17 through the plurality of communication holes 17a, and is discharged from the drainage port 17b.

On the other hand, the mold cooling water is pressure-fed from the water supply port 20 to the second water supply chamber 15 by another water supply pump (not shown), and is drained from the drain port 19.

The mold cooling water pressure-fed to the second water supply chamber 15 is supplied to the communication hole 8b.
The liquid passes through the second annular chamber 8 and flows into the first annular chamber 3 through the communication hole 3d at the bottom thereof.

The mold cooling water that has flowed into the first annular chamber 3 rises in this chamber and overflows into the annular cooling chamber from the plurality of communication holes 3d of the upper wall 3c, but the volume of the annular cooling chamber 5 is smaller than that of the first annular cooling chamber 5. Since it is smaller than that of the annular chamber 3, it fills the fifth annular chamber 22.

The mold cooling water that overflowed into the annular cooling chamber 5 flows down the mold wall 1 while cooling the entire circumference, passes through the fourth annular chamber 21, and then flows into the second annular chamber 21.
The water flows into the drainage chamber 18.

The mold cooling water that flows in from the bottom of the second drain chamber 18 rises in this chamber and is discharged from the drain port 19.

In this way, the flow path of the electromagnetic coil cooling water and the flow path of the mold cooling water are independent of each other, so by discharging both cooling waters to separate water treatment equipment, the cooling system of the electromagnetic coil and the cooling system of the mold can be separated. can be completely separated.

In addition, the electromagnetic coil storage chamber has a second
water supply chamber 15, second annular chamber 8, first annular chamber 3, fifth
The electromagnetic coil A is completely surrounded by the annular chamber 22 and the second drainage chamber 18, and the electromagnetic coil storage chamber 6 is formed by a part of the wall of each of these chambers. It is also effectively cooled by mold cooling water, albeit indirectly.

In the above embodiment, the mold cooling water flows into the first annular chamber 3 through the second annular chamber 8, but
The second annular chamber 8 is removed and the second water supply chamber 15 is directly connected to the first one.
It may be made to flow into the annular chamber 3 of.

Further, the arc length of the first drainage chamber 17 can be appropriately shortened.

As described above, according to this invention, the electromagnetic coil is housed in the electromagnetic coil storage chamber, and the electromagnetic coil cooling water is directly supplied to the electromagnetic coil storage chamber through a flow path different from that of the mold cooling water. Water treatment only needs to be performed on the electromagnetic coil cooling water, and since the electromagnetic coil storage chamber is completely surrounded by multiple chambers that form the mold cooling water flow path, the electromagnetic coil can also be treated with mold cooling water. Since it is indirectly cooled, the unit flow rate of the electromagnetic coil cooling water can be reduced accordingly, which makes the capacity of advanced water treatment equipment much smaller than before, and reduces the cost required for water treatment equipment, including running costs. can be significantly reduced compared to the conventional case.

[Brief explanation of the drawing]

Figures 1 and 2 are a front sectional view and a side sectional view of an embodiment of the mold according to this invention, and Figure 3 is an X in Figure 1.
-X homeland. In the figure, 1... mold wall, 3... first annular chamber, 6... electromagnetic coil storage chamber, 8...
...Second annular chamber, 9...First water supply chamber,
15...Second water supply room, 17...First
Drainage chamber, 18...Second drainage chamber, 22...
...Fifth annular chamber. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Scope of utility model registration request] (1) The electromagnetic coil of the electromagnetic stirring device is housed in an annular electromagnetic coil storage chamber with a first water supply chamber and a second drainage chamber attached to the bottom and the top of the outer wall, respectively, and the electromagnetic coil storage chamber is The mold cooling water is surrounded by a plurality of annular chambers constituting a part of the mold cooling water flow path, and an annular cooling is provided between the mold wall and the annular chamber provided on the inner wall side of the electromagnetic coil storage chamber among the plurality of annular chambers. The lower end of this annular cooling chamber is
A chamber formed on the outer wall side of the electromagnetic coil storage chamber among the plurality of annular chambers and partitioned into a second water supply chamber and a second drainage chamber. The electromagnetic coil cooling water is supplied and discharged from the first water supply chamber and the second drainage chamber, and the mold cooling water is supplied and discharged from the upper part of the second water supply chamber and the second drainage chamber. A mold to be used. (2) The mold according to claim 1, wherein the electromagnetic coil storage chamber is formed by walls of a plurality of annular chambers surrounding the electromagnetic coil storage chamber.