JPH028592Y2 - - Google Patents
Info
- Publication number
- JPH028592Y2 JPH028592Y2 JP1982000897U JP89782U JPH028592Y2 JP H028592 Y2 JPH028592 Y2 JP H028592Y2 JP 1982000897 U JP1982000897 U JP 1982000897U JP 89782 U JP89782 U JP 89782U JP H028592 Y2 JPH028592 Y2 JP H028592Y2
- Authority
- JP
- Japan
- Prior art keywords
- slab
- heat
- upper chamber
- heat insulating
- cooling zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 14
- 238000009749 continuous casting Methods 0.000 claims description 10
- 238000010583 slow cooling Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、連続鋳造設備に設置する断熱装
置、特に、鋳造速度にかかわらずクレータエンド
を所定位置に位置せしめることが可能な連続鋳造
設備の徐冷帯に設置する断熱装置に関するもので
ある。[Detailed description of the invention] [Industrial application field] This invention is a heat insulating device installed in continuous casting equipment, particularly for continuous casting equipment that allows the crater end to be positioned at a predetermined position regardless of the casting speed. This relates to a heat insulating device installed in a slow cooling zone.
従来の両端開放の鋳型を用いた連続鋳造設備の
概略を第１図を参照しながら説明する。
An outline of a conventional continuous casting facility using a mold with both ends open will be explained with reference to FIG.
取鍋１からタンデイツシユ２に注入された溶鋼
は、ノズル３を介して鋳型４に注入される。鋳型
４内の溶鋼は、鋳型４に続いて設けられた案内ロ
ール５および２次冷却帯６によつて冷却されつつ
下方に引抜れる。冷却されて凝固シエルが次第に
厚く形成された未凝固鋳片は、矯正ロール７によ
つて水平に矯正され、その後、徐冷帯８にて完全
に凝固が完了した鋳片９は、切断機１０によつて
所定長さに切断され、次工程に送られる。 Molten steel injected from a ladle 1 into a tundish 2 is injected into a mold 4 via a nozzle 3. The molten steel in the mold 4 is cooled by guide rolls 5 and a secondary cooling zone 6 provided following the mold 4 and is drawn downward. The unsolidified slab, which has been cooled and a solidified shell has gradually become thicker, is straightened horizontally by a straightening roll 7. After that, the slab 9, which has been completely solidified in an annealing zone 8, is transferred to a cutting machine 10. The material is cut into a predetermined length by a machine and sent to the next process.
近年、省エネルギー対策の一環として、連続鋳
造設備により鋳造された鋳片を再加熱することな
く圧延工程に搬送し、圧延する、所謂ホツトダイ
レクトローリングが行われつつあり、このため
に、徐冷帯に設けられた隣接するピンチロール間
に断熱装置を設置し、鋳片の温度低下を防止して
高温鋳片を得る連続鋳造設備が提案され、前記断
熱装置としては、例えば、実公昭56−10442号公
報、実公昭56−10443号公報等に開示されたもの
がある。 In recent years, as part of energy-saving measures, so-called hot direct rolling, in which slabs cast by continuous casting equipment are conveyed to the rolling process and rolled without being reheated, is being carried out. Continuous casting equipment has been proposed in which a heat insulating device is installed between adjacent pinch rolls to prevent a drop in the temperature of the slab and obtain high-temperature slabs. Some of them are disclosed in the official gazette, Japanese Utility Model Publication No. 10443/1983, etc.
しかし、上記従来の断熱装置を設置して連続鋳
造を行つた場合には、次の如き問題が生じる。
However, when continuous casting is performed with the conventional heat insulating device as described above installed, the following problems occur.
鋳片９の生産性を一定にするためには、鋳片サ
イズに応じて鋳造速度（鋳片引抜速度）を変更さ
せる必要があるが、鋳造速度が変動するとクレー
タエンド２２の位置も変動する。即ち、鋳造速度
を速くするとクレータエンドは鋳片引抜方向に移
動し、遅くすると逆方向に移動する。高温鋳片を
得るには、クレータエンド２２がガス切断機１０
の直前に位置するように鋳片９の冷却を制御する
必要がある。 In order to keep the productivity of the slab 9 constant, it is necessary to change the casting speed (slab drawing speed) according to the slab size, but when the casting speed changes, the position of the crater end 22 also changes. That is, when the casting speed is increased, the crater end moves in the slab drawing direction, and when it is slowed down, the crater end moves in the opposite direction. In order to obtain a hot slab, the crater end 22 is cut by a gas cutting machine 10.
It is necessary to control the cooling of the slab 9 so that the slab 9 is positioned immediately before the .
ところが、上記従来の断熱装置は、鋳片の断熱
効果のみしか有さないので、鋳造速度を速めた場
合には、２次冷却帯で過度の冷却を施さねばなら
ず、鋳片の品質等に悪影響を及ぼすといつた問題
があつた。 However, the conventional heat insulation device described above only has the effect of insulating the slab, so when the casting speed is increased, excessive cooling must be performed in the secondary cooling zone, which affects the quality of the slab. There was a problem that was said to have a negative impact.
この考案は、上記問題を解決するためになされ
たものであつて、
連続鋳造設備の２次冷却帯以後の徐冷帯に設置
する断熱装置であつて、中空箱体の内部が、鋳片
との対向面に熱反射板が貼設された水平の中間壁
によつて上室と下室とに２分割され、前記上室に
は冷却水用給排水管が接続され、前記下室の鋳片
と対向する下面は鋳片からの輻射熱を遮へいする
熱遮へい板で形成され、前記上室および前記下室
を貫通して鋳片に冷却水を噴射するノズルが取付
けられてなり、断熱装置に冷却機能を持たせたこ
とに特徴を有する。
This invention was devised to solve the above problem, and is a heat insulating device installed in the slow cooling zone after the secondary cooling zone of continuous casting equipment. The chamber is divided into an upper chamber and a lower chamber by a horizontal intermediate wall with a heat reflecting plate attached to the opposing surface of the chamber, and a cooling water supply and drainage pipe is connected to the upper chamber, and the slab in the lower chamber is divided into an upper chamber and a lower chamber. The lower surface facing the slab is formed by a heat shield plate that shields the radiant heat from the slab, and a nozzle that penetrates the upper chamber and the lower chamber and injects cooling water to the slab is attached to the insulation device. It is characterized by its functionality.
この考案の一実施態様を図面を参照しながら説
明する。
An embodiment of this invention will be described with reference to the drawings.
第２図は、この考案の一実施態様の部分切欠斜
視図である。 FIG. 2 is a partially cutaway perspective view of one embodiment of this invention.
第２図において、１１は強制冷却機能を有する
断熱板であり、これは中空箱体の内部を、その下
面に薄い熱反射板（図示せず）を貼付けてなる中
間壁１２によつて上室１３と下室１４とに２分割
したもので構成され、上室１３には給水用配管１
５と排水用配管１６とが接続されていて、下室１
４の下面はステンレス薄板等の熱遮へい板１７で
形成されている。熱遮へい板１７は中間壁１２に
貼設された熱反射板の熱劣化を防止する機能を有
するものであるが、これは熱膨張を吸収するため
に波形に成形すると良い。１８は断熱板１１を貫
通して設けられたノズルであり、高温鋳片９の表
面に水あるいは水と空気との混合物を散布して鋳
片９を冷却するものである。 In Fig. 2, reference numeral 11 denotes a heat insulating board having a forced cooling function, which connects the inside of a hollow box to an upper chamber by an intermediate wall 12 having a thin heat reflecting plate (not shown) attached to its lower surface. 13 and a lower chamber 14, and the upper chamber 13 has a water supply pipe 1.
5 and the drainage pipe 16 are connected, and the lower chamber 1
The lower surface of 4 is formed with a heat shield plate 17 such as a thin stainless steel plate. The heat shield plate 17 has a function of preventing thermal deterioration of the heat reflection plate attached to the intermediate wall 12, and is preferably formed into a corrugated shape to absorb thermal expansion. A nozzle 18 is provided through the heat insulating plate 11 and sprays water or a mixture of water and air onto the surface of the hot slab 9 to cool the slab 9.
なお、上記実施例のように、ノズルを別途に設
ける以外に上室１３内に供給する冷却水の一部を
中間壁１２および熱遮へい板１７を貫通して設け
たノズル（図示せず）から噴射するようにしても
良い。 In addition, as in the above embodiment, in addition to providing a separate nozzle, a portion of the cooling water supplied into the upper chamber 13 is supplied from a nozzle (not shown) provided through the intermediate wall 12 and the heat shield plate 17. Alternatively, it may be sprayed.
従つて、第３図に示されるように、上記構成か
らなるこの考案の断熱装置を徐冷帯の隣接するピ
ンチロール１９間に設置すれば、鋳片９の輻射熱
は熱遮へい板１７、断熱板１１の下室１４の空気
層及び熱反射板１７による総合断熱効果によつて
徐冷帯での鋳片９の温度低下が防止される。熱遮
へい板１７は高温となるが、断熱板１１の上室１
３内に供給された冷却水により下室１４を介して
間接的に冷却されるので、一定温度に保持され
る。この場合、熱遮へい板１７は間接的に冷却さ
れるので鋳片９の温度低下を招く虞れはない。
尚、第４図に示されるように、鋳片９の両側面に
接近させて別の断熱部材２０をピンチロール１９
のフレーム２１に設置すれば、鋳片９の両側面か
らの放熱も防止できるので鋳片９をより高温に維
持することができる。 Therefore, as shown in FIG. 3, if the heat insulating device of this invention having the above-mentioned structure is installed between the adjacent pinch rolls 19 of the slow cooling zone, the radiant heat of the slab 9 will be transferred to the heat shield plate 17 and the heat insulating plate. The overall heat insulating effect of the air layer in the lower chamber 14 of 11 and the heat reflecting plate 17 prevents the temperature of the slab 9 from decreasing in the slow cooling zone. Although the heat shielding plate 17 becomes high temperature, the upper chamber 1 of the heat insulating plate 11
Since the lower chamber 14 is indirectly cooled by the cooling water supplied into the lower chamber 14, the temperature is maintained at a constant temperature. In this case, since the heat shield plate 17 is indirectly cooled, there is no risk of the temperature of the slab 9 decreasing.
In addition, as shown in FIG.
If installed in the frame 21, heat radiation from both sides of the slab 9 can be prevented, so the slab 9 can be maintained at a higher temperature.
一方、鋳造速度を速めた結果、クレータエンド
２２が鋳片引抜方向に移動し、徐冷帯に位置しな
くなる虞れが生じた場合には、ノズル１８から冷
却水を鋳片９に向けて散布する。これによつて鋳
片９は徐冷帯の一部で強制冷却されるので、クレ
ータエンド２２を鋳造速度変更前の位置に戻すこ
とができ、かつ、鋳造速度が変動しても鋳片温度
をほぼ一定に維持することができる。 On the other hand, as a result of increasing the casting speed, if there is a risk that the crater end 22 will move in the slab withdrawal direction and no longer be located in the slow cooling zone, cooling water will be sprayed from the nozzle 18 toward the slab 9. do. As a result, the slab 9 is forcibly cooled in a part of the slow cooling zone, so the crater end 22 can be returned to the position before the casting speed change, and the slab temperature can be maintained even if the casting speed changes. It can be maintained almost constant.
以上説明したように、この考案によれば、２次
冷却帯以後の徐冷帯での鋳片の温度低下を防止で
きるとともに、鋳造速度を速めた等の原因によつ
て鋳片のクレータエンドが徐冷帯から外れる虞れ
がある場合にも徐冷帯の一部で強制冷却が行える
ので、過度冷却を２次冷却帯で施す必要がない。
従つて、鋳造速度にかかわらず、常に優れた品質
の高温鋳片を得ることができるといつたきわめて
有用な効果がもたらされる。
As explained above, according to this invention, it is possible to prevent the temperature of the slab from decreasing in the slow cooling zone after the secondary cooling zone, and the crater end of the slab can be prevented due to factors such as increasing the casting speed. Even if there is a risk of leaving the slow cooling zone, forced cooling can be performed in a part of the slow cooling zone, so there is no need to perform excessive cooling in the secondary cooling zone.
Therefore, a very useful effect is brought about in that a high-temperature slab of excellent quality can always be obtained regardless of the casting speed.
第１図は、従来の連続鋳造設備の概略図、第２
図は、この考案の一実施態様を示す部分切欠斜視
図、第３図は、この考案の断熱装置の設置態様を
示す側面図、第４図は、第３図のＡ−Ａ線断面図
である。図面において、
１……取鍋、２……タンデイツシユ、３……ノ
ズル、４……鋳型、５……案内ロール、６……２
次冷却帯、７……矯正ロール、８……徐冷帯、９
……鋳片、１０……切断機、１１……断熱板、１
２……中間壁、１３……上室、１４……下室、１
５……給水用配管、１６……排水用配管、１７…
…熱遮へい板、１８……ノズル、１９……ピンチ
ロール、２０……断熱部材、２１……フレーム、
２２……クレータエンド。
Figure 1 is a schematic diagram of conventional continuous casting equipment;
The figure is a partially cutaway perspective view showing an embodiment of this invention, FIG. 3 is a side view showing the installation mode of the heat insulating device of this invention, and FIG. 4 is a sectional view taken along line A-A in FIG. be. In the drawings, 1...Ladle, 2...Tundish, 3...Nozzle, 4...Mold, 5...Guide roll, 6...2
Next cooling zone, 7... Straightening roll, 8... Gradual cooling zone, 9
... Slab, 10 ... Cutting machine, 11 ... Heat insulation plate, 1
2... Middle wall, 13... Upper chamber, 14... Lower chamber, 1
5...Water supply piping, 16...Drainage piping, 17...
...Heat shielding plate, 18... Nozzle, 19... Pinch roll, 20... Heat insulation member, 21... Frame,
22... Crater End.
Claims (1)
する断熱装置であつて、中空箱体の内部が、鋳片
との対向面に鋳片からの輻射熱を反射する熱反射
板が貼設された水平の中間壁によつて上室と下室
とに２分割され、前記上室には冷却水用給排水管
が接続され、前記下室の鋳片と対向する下面は鋳
片からの輻射熱を遮へいする熱遮へい板で形成さ
れ、前記上室および前記下室を貫通して鋳片に冷
却水を噴射するノズルが取付けられてなり、断熱
装置に冷却機能を持たせたことを特徴とする、連
続鋳造設備に設置する断熱装置。 A heat insulating device installed in the slow cooling zone after the secondary cooling zone of continuous casting equipment, in which the interior of the hollow box has a heat reflecting plate attached to the surface facing the slab to reflect the radiant heat from the slab. The upper chamber is divided into an upper chamber and a lower chamber by a horizontal intermediate wall, and a cooling water supply and drainage pipe is connected to the upper chamber, and the lower surface of the lower chamber facing the slab receives radiant heat from the slab. The heat insulating device is formed of a heat shield plate that shields the heat shield, and is equipped with a nozzle that penetrates the upper chamber and the lower chamber and injects cooling water onto the slab, so that the heat insulating device has a cooling function. , insulation equipment installed in continuous casting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP89782U JPS58107256U (en) | 1982-01-09 | 1982-01-09 | Insulation device installed in continuous casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP89782U JPS58107256U (en) | 1982-01-09 | 1982-01-09 | Insulation device installed in continuous casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58107256U JPS58107256U (en) | 1983-07-21 |
| JPH028592Y2 true JPH028592Y2 (en) | 1990-03-01 |
Family
ID=30013947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP89782U Granted JPS58107256U (en) | 1982-01-09 | 1982-01-09 | Insulation device installed in continuous casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58107256U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566505B2 (en) * | 1974-10-21 | 1981-02-12 | ||
| JPS56148461A (en) * | 1980-04-17 | 1981-11-17 | Nippon Steel Corp | Method and device for cooling continuous casting ingot |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934219U (en) * | 1972-06-29 | 1974-03-26 | ||
| JPS5347055Y2 (en) * | 1975-05-06 | 1978-11-10 | ||
| JPS566505U (en) * | 1979-06-26 | 1981-01-21 |
-
1982
- 1982-01-09 JP JP89782U patent/JPS58107256U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566505B2 (en) * | 1974-10-21 | 1981-02-12 | ||
| JPS56148461A (en) * | 1980-04-17 | 1981-11-17 | Nippon Steel Corp | Method and device for cooling continuous casting ingot |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58107256U (en) | 1983-07-21 |
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