JPH034425Y2 - - Google Patents
Info
- Publication number
- JPH034425Y2 JPH034425Y2 JP1803886U JP1803886U JPH034425Y2 JP H034425 Y2 JPH034425 Y2 JP H034425Y2 JP 1803886 U JP1803886 U JP 1803886U JP 1803886 U JP1803886 U JP 1803886U JP H034425 Y2 JPH034425 Y2 JP H034425Y2
- Authority
- JP
- Japan
- Prior art keywords
- spray
- dummy bar
- continuous casting
- piezoelectric
- nozzle
- 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
- 239000007921 spray Substances 0.000 claims description 33
- 230000005856 abnormality Effects 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 13
- 238000009749 continuous casting Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 238000005266 casting Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は連続鋳造設備における２次冷却系スプ
レーノズルの異常検出装置に関するものである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an abnormality detection device for a secondary cooling system spray nozzle in continuous casting equipment.
（従来の技術）
連続鋳造設備２次冷却系は、例えば幅1630mm×
厚245mm鋳片製造用の連鋳機では１ラインに数百
個から１千個のスプレーノズルで構成し、鋳片の
凝固、冷却を行つているが、ノズル詰り、あるい
はノズル抜け等スプレーノズル異常による不均一
な冷却は鋳片の表面割れ、内部割れなど品質に悪
影響を与える。(Prior art) The secondary cooling system of continuous casting equipment is, for example, 1630 mm wide x
Continuous casting machines for producing slabs with a thickness of 245 mm consist of several hundred to 1,000 spray nozzles per line to solidify and cool the slabs, but spray nozzle abnormalities such as nozzle clogging or nozzle omissions occur. Uneven cooling due to this will adversely affect the quality of the slab, such as surface cracks and internal cracks.
これらノズル異常の検出は、従来は狭い機内に
人が入り点検する方法で行なわれて来たが、ノズ
ル数が多数であることもあり、又悪環境であり、
非能率な作業であつた。最近では、スプレーゾー
ン単位での水圧力を検出する技術（実公昭57−
59236号公報）、又第５図に示した様に機内にテレ
ビカメラを挿入する方法、即ちテレビカメラ１
７、反射鏡１８、及び照明ランプ１９、又カメラ
装置を幅方向にスキヤンする機構２０を一式専用
の計測台車１４に積載し、反射鏡１８に写るスプ
レーノズル４の噴射状態を機外に設置したテレビ
モニター２１で観察する方法（川鉄技報1980年
Vo．12、No.３、540ページ）などがあつた。 Detection of these nozzle abnormalities has conventionally been carried out by having a person enter the small interior of the machine and inspect it, but this method involves a large number of nozzles and the harsh environment.
It was inefficient work. Recently, technology to detect water pressure in spray zone units (Utility Industry Publications 57-
59236), and a method of inserting a television camera into the aircraft as shown in Figure 5, that is, television camera 1.
7. A reflector 18, an illumination lamp 19, and a mechanism 20 for scanning the camera device in the width direction were loaded on a dedicated measuring cart 14, and the spray state of the spray nozzle 4 reflected on the reflector 18 was installed outside the machine. How to observe on TV monitor 21 (Kawatetsu Technical Report 1980)
Vo. 12, No. 3, page 540).
（考案が解決しようとする問題点）
しかるに、これらの方法には各々特有の問題
点、欠点が有る。例えばスプレーゾーン単位の水
圧力を検出する方法では、１つのゾーン単位での
スプレーノズル数が多いことから多数のノズルに
異常が生じないと検出できない欠点があり、一方
ゾーンを細分割して検出能を上げる方法が有る
が、センサー数が増大し、大掛かりとなる問題が
有る。又、テレビカメラを用いる技術について
も、装置が大掛かりとなり、専用の検査用台車を
挿入しなければならず、又、全巾方向のノズルを
観察するにはカメラを巾方向にスキヤンしなけれ
ばならないなど、作業性に欠点が有り、合せてス
プレー水の噴射状態はあくまでも目視で確認する
方法で有ることから検出精度、定量化の面での欠
点があつた。(Problems that the invention attempts to solve) However, each of these methods has its own problems and drawbacks. For example, the method of detecting water pressure in each spray zone has the disadvantage that it cannot be detected unless an abnormality occurs in a large number of nozzles because there are many spray nozzles in each zone. There is a way to increase the number of sensors, but the problem is that the number of sensors increases and it becomes a large-scale problem. Furthermore, with the technology that uses a television camera, the equipment is large-scale, and a special inspection trolley must be inserted, and the camera must be scanned in the width direction to observe the nozzle in the entire width direction. This method has disadvantages in terms of workability, and since it is a method that only visually confirms the state of spray water, it has disadvantages in terms of detection accuracy and quantification.
（問題点を解決するための手段、作用）
以上の問題点を有利に解決するため、連鋳機機
内を通過するダミーバーまたは計測台車等のスプ
レー水噴射面に防振材を介して圧電素子を配設し
たことを特徴とする連続鋳造設備スプレーノズル
異常検出装置を考案した。圧電素子はスプレー水
噴射面に１個または複数個の線状または帯状に設
ける。圧電素子は圧電性高分子複合物とすること
が好ましい。(Means and effects for solving the problem) In order to advantageously solve the above problems, a piezoelectric element is installed via a vibration isolating material on the spray water injection surface of a dummy bar or measuring cart that passes inside the continuous casting machine. We have devised a continuous casting equipment spray nozzle abnormality detection device that is characterized by the following: One or more piezoelectric elements are provided in the form of a line or band on the spray water injection surface. Preferably, the piezoelectric element is a piezoelectric polymer composite.
すなわち、連鋳機機内を通過するダミーバーあ
るいは別に設けた計測台車などのスプレー水が噴
射される面に、機内を通過するとき鋳片引抜きロ
ールとの接触による衝撃振動、あるいはダミーバ
ー等の揺動による振動などが検出部り伝達するの
を防止する防振材を介して１個又は複数個の線状
あるいは帯状の圧電素子を設置し、当該圧電素子
に加わるスプレーノズルからの噴出水の圧力エネ
ルギーを電気量に変換してスプレーノズルの異常
を検出するのである。ここで望ましい態様として
は、圧電素子として圧電性高分子複合物を使用す
る。即ち、圧電性高分子複合物とは合成ゴムの中
に粒度１〜数ミクロン程度の圧電性セラミツクス
微粒子を分散し、高分子を結合した圧電材料であ
り、圧電率が大きく、かつ柔軟で、さらにはセラ
ミツクスを高分子で結合しているため、衝撃力に
も強いなどの特性を示す。さらには、線状、帯
状、大面積のフイルム状などに製造がが可能であ
る等の特徴が有る。 In other words, the surface from which spray water is sprayed, such as a dummy bar passing through the inside of a continuous casting machine or a separately installed measuring cart, is affected by shock vibrations due to contact with the slab drawing rolls as it passes through the machine, or from swinging of the dummy bar, etc. One or more linear or band-shaped piezoelectric elements are installed through a vibration-proofing material that prevents vibrations from being transmitted to the detection part, and the pressure energy of the water jetted from the spray nozzle is applied to the piezoelectric elements. It converts it into an electrical quantity to detect abnormalities in the spray nozzle. Here, in a preferred embodiment, a piezoelectric polymer composite is used as the piezoelectric element. In other words, a piezoelectric polymer composite is a piezoelectric material in which piezoelectric ceramic fine particles with a particle size of about 1 to several microns are dispersed in synthetic rubber, and a polymer is bonded to it.It has a high piezoelectric constant, is flexible, and Because it combines ceramics with polymers, it exhibits properties such as being strong against impact forces. Furthermore, it has the feature that it can be manufactured into a linear shape, a band shape, a large area film shape, and the like.
当該圧電素子を、ダミーバーあるいは計測台車
のスプレー水が噴出される面に取り付けることに
よつて、スプレー水の噴出力を検出することが可
能となり、かつ電気量出力としては、各々のセラ
ミツクスを結合している高分子は導電性であるこ
とから各々のセラミツクスで発生した電気量の総
和が検出可能であり、効果的なノズル噴出力検出
用センサーの製造が可能となる。合せて、衝撃力
等の破損に対しても強く、したがつて悪環境な連
続鋳造設備での長期間使用が可能であり、さらに
はダミーバー等に装着することから、鋳造のスタ
ト時には必らずダミーバー等が機内に挿入される
ため、鋳造スケジユールに何等影響を与えず、高
能率にスプレーの異常検出が可能となる。 By attaching the piezoelectric element to the dummy bar or the surface of the measuring cart from which spray water is ejected, it is possible to detect the ejection force of the spray water, and the electric quantity output can be obtained by combining each ceramic. Since the polymer used in this process is electrically conductive, it is possible to detect the total amount of electricity generated in each ceramic, making it possible to manufacture an effective sensor for detecting nozzle ejection force. In addition, it is resistant to damage caused by impact forces, etc., so it can be used for long periods in continuous casting equipment in harsh environments.Furthermore, since it is attached to a dummy bar, etc., it is not necessary at the start of casting. Since a dummy bar or the like is inserted into the machine, it does not affect the casting schedule in any way, making it possible to detect spray abnormalities with high efficiency.
なお、ダミーバーとは、鋳造スタート時、鋳片
の先端を凝固させ、かつ機内に導入、抽出するた
めの装置で、チエーン状の鋼製ブロツクの連結体
である。 The dummy bar is a device that solidifies the tip of the slab at the start of casting, introduces it into the machine, and extracts it, and is a connected body of chain-shaped steel blocks.
（実施例）
次に実施例について述べる。第１図はダミーバ
ー１に設置した例を示す。(Example) Next, an example will be described. FIG. 1 shows an example where it is installed on a dummy bar 1.
ダミーバー１は、鋳造スタート時ロール２、ス
プレーヘツダー３から構成された機内に挿入され
る。ダミーバー１は小形の為、スプレーヘツダー
３幅より小さく、本実施例では全幅のスプレーノ
ズル４の異常を検出するべく、幅を持つセンサー
台５をダミーバー１に溶接、ボルト・一体製作等
によつて取付けている。センサーである圧電線高
分子複合物線６にダミーバー１の振動が伝達し、
計測上のノイズが発生するのを防止する目的で、
第２図で示した様に、防振ゴムあるいはウレタン
フオーム等を材料とする防振材７を用いている。 The dummy bar 1 is inserted into a machine consisting of a roll 2 and a spray header 3 at the start of casting. Since the dummy bar 1 is small, it is smaller than the width of the spray header 3, and in this embodiment, in order to detect abnormalities in the full width spray nozzle 4, a wide sensor stand 5 is welded to the dummy bar 1, bolts, integrally manufactured, etc. It is installed. The vibration of the dummy bar 1 is transmitted to the piezoelectric polymer composite wire 6 which is a sensor,
In order to prevent measurement noise,
As shown in FIG. 2, a vibration isolating material 7 made of vibration isolating rubber, urethane foam, or the like is used.
なお、防振材７及び圧電線高分子複合物線６共
柔軟で有り、曲がり等を防止する目的で強固な素
子取り付けプレート８を用い、プレート８上に圧
電線高分子複合物線６を取り付けている。 Note that the vibration isolating material 7 and the piezoelectric polymer composite wire 6 are both flexible, and a strong element mounting plate 8 is used to prevent bending, etc., and the piezoelectric polymer composite wire 6 is attached on the plate 8. ing.
第３図は長さ250mmの圧電性高分子複合物線を
巾方向に６個配列して計測した例を示した。ノズ
ルが詰まつている個所では全く出力が出ず、又ノ
ズルの状態によつて出力に各種パターンがあるこ
とが分かる。なお、センサーの配置後、長さ等は
ノズルの配置状況、検出すべき精度によつて決め
れば良い。 Figure 3 shows an example in which six piezoelectric polymer composite wires with a length of 250 mm were arranged in the width direction and measured. It can be seen that there is no output at all where the nozzle is clogged, and that there are various patterns in the output depending on the condition of the nozzle. Incidentally, after the sensor is arranged, the length etc. may be determined depending on the arrangement of the nozzle and the accuracy to be detected.
一方、検出した電気量は、第４図に示す様に、
チヤージアンプ９で増巾し、有線あるいは無線で
機外に固定された表示計に接続する。なお、第４
図に示した例では、表示にパソコン１３を用いた
ため、高周波数のチヤージアンプ９からの出力信
号を、パソコン１３で読み取り処理を容易とする
よう、拘絡線処理装置１１を用いて直流化した
が、この他にも実効値演算ピークホールド等の処
理も適用できる。 On the other hand, the detected amount of electricity is as shown in Figure 4.
It is amplified by a charge amplifier 9 and connected to a display meter fixed outside the aircraft by wire or wirelessly. In addition, the fourth
In the example shown in the figure, since the personal computer 13 is used for display, the high-frequency output signal from the charge amplifier 9 is converted to direct current using the tangent line processing device 11 so that it can be easily read and processed by the personal computer 13. In addition to this, processing such as effective value calculation peak hold can also be applied.
なお、本実施例ではダミーバーに装着した例を
示したが、第６図に示したように、ダミーバーと
は別に連鋳機機内に挿入可能な専用の計測台車を
設け、その台車に装着することもできる。すなわ
ち、ワイヤーロープ１５等で吊られ、上下移動す
る計測台車１４のスプレー水噴射面に、圧電性高
分子複合物６を配設したセンサー台を装着するの
である。 Although this embodiment shows an example in which the measuring device is attached to a dummy bar, as shown in FIG. You can also do it. That is, the sensor stand on which the piezoelectric polymer composite 6 is disposed is attached to the spray water jetting surface of the measurement cart 14 which is suspended by a wire rope 15 or the like and moves up and down.
又、圧電素子として薄膜状の帯状のものを使用
してもスプレーノズルの異常検出に有利に活用で
きる。 Further, even if a thin film-like band-shaped piezoelectric element is used, it can be advantageously utilized for detecting an abnormality in a spray nozzle.
（考案の効果）
以上、詳細に説明したように、本考案による連
続鋳造設備スプレーノズル異常検出装置により、
高精度でかつコンパクトな検出器が実現でき、か
つ鋳造時使用するダミーバー等に装着することに
よつて鋳造スタート時のダミーバー等挿入抽出時
に何等操業の障害が無く、スプレーノズルの異常
検出が可能となる。(Effects of the invention) As explained above in detail, the continuous casting equipment spray nozzle abnormality detection device according to the invention can
A highly accurate and compact detector can be realized, and by attaching it to the dummy bar used during casting, there will be no operational obstruction when inserting and extracting the dummy bar etc. at the start of casting, and it will be possible to detect abnormalities in the spray nozzle. Become.
更に、本考案の応用分野としては、多数のスプ
レーノズルで構成されるいずれの冷却装置、又洗
浄装置等でも応用可能であり、例えば厚板鋼板製
造プロセスの冷却装置では、鋼板と同様形状を持
つ計測専用鋼板に圧電素子を装着すること、又薄
板鋼板製造プロセスでの連続焼鈍設備の冷却装置
でも、同様な異常検出装置に応用することが可能
である。 Furthermore, the present invention can be applied to any type of cooling equipment that consists of a large number of spray nozzles, cleaning equipment, etc. For example, in a cooling equipment for the process of manufacturing thick steel plates, it is possible to apply spray nozzles that have the same shape as the steel plate. A similar abnormality detection device can be applied by attaching a piezoelectric element to a steel plate for measurement, or by a cooling device for continuous annealing equipment in the manufacturing process of thin steel sheets.
第１図、第２図は本考案の実施例としてダミー
バーに圧電素子を配設した例を示す図である。第
３図は本考案に係る連続鋳造設備スプレーノズル
異常検出装置により実際に計測した例を示し、横
軸は時間軸、縦軸はチヤージアンプ後のセンサー
からの出力で、電圧信号である。なお、最上段は
センサー部がロール部通過した信号を挿入してい
る。圧電素子は幅方向にNo.１〜６と６個配してい
る。第４図は信号処理の一例を示す図である。第
５図は従来のテレビカメラによる検出法を示す図
であり、同図ａは概要を、同図ｂは計測台車の詳
細を示す。第６図は本考案の実施例として計測台
車に圧電素子を配設した例を示す図である。
１…ダミーバー、２…ロール、３…スプレーヘ
ツダー、４…スプレーノズル、５…センサー台、
６…圧電性高分子複合物線、７…防振材、８…素
子取り付けプレート、９…チヤージアンプ、１０
…ハイパスフイルター、１１…拘絡線処理装置、
１２…Ａ／Ｄ付マルチプレクサー、１３…パソコ
ン、１４…計測台車、１５…ワイヤーロープ、１
６…差上げドラム、１７…テレビカメラ、１８…
反射鏡、１９…照明ランプ、２０…幅方向にスキ
ヤンする機構、２１…テレビモニター、２２…照
明窓、２３…透視窓。
FIGS. 1 and 2 are diagrams showing an example in which a piezoelectric element is arranged on a dummy bar as an embodiment of the present invention. FIG. 3 shows an example actually measured by the continuous casting equipment spray nozzle abnormality detection device according to the present invention, where the horizontal axis is the time axis, and the vertical axis is the output from the sensor after the charge amplifier, which is a voltage signal. Note that the sensor section inserts the signal passed through the roll section at the top. Six piezoelectric elements are arranged in the width direction, numbered 1 to 6. FIG. 4 is a diagram showing an example of signal processing. FIG. 5 is a diagram showing a conventional detection method using a television camera, with FIG. 5a showing an overview and FIG. 5b showing details of a measuring cart. FIG. 6 is a diagram showing an example in which a piezoelectric element is arranged on a measuring cart as an embodiment of the present invention. 1... Dummy bar, 2... Roll, 3... Spray header, 4... Spray nozzle, 5... Sensor stand,
6... Piezoelectric polymer composite wire, 7... Vibration isolating material, 8... Element mounting plate, 9... Charge amplifier, 10
... High pass filter, 11... Constraint line processing device,
12...Multiplexer with A/D, 13...PC, 14...Measuring trolley, 15...Wire rope, 1
6...Gift drum, 17...TV camera, 18...
Reflector, 19... Illumination lamp, 20... Mechanism for scanning in the width direction, 21... Television monitor, 22... Illumination window, 23... Transparent window.
Claims (1)
台車等のスプレー水噴射面に防振材を介して圧
電素子を配設したことを特徴とする連続鋳造設
備スプレーノズル異常検出装置。 (2) 圧電素子が圧電性高分子複合物である実用新
案登録請求の範囲第１項記載の連続鋳造設備ス
プレーノズル異常検出装置。[Scope of Claim for Utility Model Registration] (1) Continuous casting equipment spray characterized by having a piezoelectric element disposed on the spray water injection surface of a dummy bar, measuring cart, etc. passing through the inside of a continuous casting machine via a vibration isolating material. Nozzle abnormality detection device. (2) The continuous casting equipment spray nozzle abnormality detection device according to claim 1, wherein the piezoelectric element is a piezoelectric polymer composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1803886U JPH034425Y2 (en) | 1986-02-10 | 1986-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1803886U JPH034425Y2 (en) | 1986-02-10 | 1986-02-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62131768U JPS62131768U (en) | 1987-08-20 |
| JPH034425Y2 true JPH034425Y2 (en) | 1991-02-05 |
Family
ID=30811348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1803886U Expired JPH034425Y2 (en) | 1986-02-10 | 1986-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH034425Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011220050A (en) * | 2010-04-13 | 2011-11-04 | Railway Technical Research Institute | Vibration damping apparatus for track and vibration damping apparatus for vibrating body |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0675757B2 (en) * | 1989-03-20 | 1994-09-28 | 住友金属工業株式会社 | Spray nozzle injection state detection device |
| JP6201699B2 (en) * | 2013-12-04 | 2017-09-27 | 新日鐵住金株式会社 | Spray nozzle abnormality detection device and spray nozzle abnormality detection method using the same |
-
1986
- 1986-02-10 JP JP1803886U patent/JPH034425Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011220050A (en) * | 2010-04-13 | 2011-11-04 | Railway Technical Research Institute | Vibration damping apparatus for track and vibration damping apparatus for vibrating body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62131768U (en) | 1987-08-20 |
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