JPH05180579A - Measuring method for temperature of rear surface of slab in heating furnace - Google Patents
Measuring method for temperature of rear surface of slab in heating furnaceInfo
- Publication number
- JPH05180579A JPH05180579A JP3356852A JP35685291A JPH05180579A JP H05180579 A JPH05180579 A JP H05180579A JP 3356852 A JP3356852 A JP 3356852A JP 35685291 A JP35685291 A JP 35685291A JP H05180579 A JPH05180579 A JP H05180579A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- slab
- heating furnace
- radiation thermometer
- protector
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000005855 radiation Effects 0.000 claims abstract description 26
- 230000001012 protector Effects 0.000 abstract description 13
- 238000005098 hot rolling Methods 0.000 abstract description 5
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
Landscapes
- Radiation Pyrometers (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、熱間圧延の加熱炉内
において、落下しまた堆積するスケールの影響を排除し
てスラブの裏面温度を測定する放射温度計による測定方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiation thermometer for measuring the backside temperature of a slab by eliminating the influence of scales that fall and accumulate in a heating furnace for hot rolling.
【０００２】[0002]
【従来の技術】熱間圧延の加熱炉操業において、スラブ
の温度管理は重要である。このため、加熱炉内では放射
温度計を用いて常時スラブの温度が測定される。2. Description of the Related Art Temperature control of a slab is important in operating a heating furnace for hot rolling. Therefore, the temperature of the slab is constantly measured in the heating furnace using a radiation thermometer.
【０００３】従来、このようなスラブの温度測定として
は、加熱炉内上部側に放射温度計を設置し、スラブの上
方からその上面の温度を測定していた。Conventionally, for measuring the temperature of such a slab, a radiation thermometer is installed on the upper side of the heating furnace, and the temperature of the upper surface of the slab is measured from above.
【０００４】[0004]
【発明が解決しようとする課題】ところで、スラブの温
度管理を行うには、本来スラブの上面の温度だけでな
く、スラブ全体の温度を知る必要がある。By the way, in order to control the temperature of the slab, it is necessary to know not only the temperature of the upper surface of the slab but also the temperature of the entire slab.
【０００５】しかし、従来の温度測定では、上述したよ
うにスラブの上面側の温度を測定するだけであり、裏面
側の測定はされていないのが実状であった。これは、熱
間圧延の加熱炉内でスラブ裏面側の温度を放射温度計で
測定しようとすると、放射温度計を炉床に設置しスラブ
の上方に向って測定を行うことになるが、このような測
定方法の場合では上部側に位置するスラブからスケール
が落下しそのスケールによって温度計の測定部を塞いだ
り、またスケールが堆積して測定部が埋まったりするな
どして、スラブ裏面側の正確な温度測定が困難となるた
めである。However, in the conventional temperature measurement, as described above, only the temperature on the upper surface side of the slab is measured, and the actual condition on the back surface side is not measured. This means that if you try to measure the temperature on the back side of the slab with a radiation thermometer in the heating furnace of hot rolling, you will install the radiation thermometer on the hearth and measure upwards of the slab. In the case of such a measurement method, the scale falls from the slab located on the upper side, the measurement part of the thermometer is blocked by the scale, and the scale is accumulated and the measurement part is filled up. This is because accurate temperature measurement becomes difficult.
【０００６】このため、従来よりスラブ裏面側の温度を
測定する技術が待望されていた。Therefore, a technique for measuring the temperature on the back side of the slab has long been desired.
【０００７】本発明は、以上の点に鑑み創案されたもの
で、加熱炉内において、落下しまたは堆積するスケール
の影響を排除してスラブの裏面温度を測定できる放射温
度計による測定方法を提供しようとするものである。The present invention was devised in view of the above points, and provides a measuring method by a radiation thermometer capable of measuring the backside temperature of a slab by eliminating the influence of scale that drops or accumulates in a heating furnace. Is what you are trying to do.
【０００８】[0008]
【課題を解決するための手段】このため、本発明に係る
スラブ裏面の温度測定方法は、放射温度計を用いて、加
熱炉内スラブ裏面の温度を測定する加熱炉内スラブ裏面
の温度測定方法において、スラブ裏面を上方に見上げる
位置に放射温度計を設置するとともに、該放射温度計の
上部に防御部材を設置し、前記放射温度計の測温方向を
斜め上方として、スラブ裏面の温度を測定することを特
徴とするものである。Therefore, the method for measuring the temperature of the back surface of the slab according to the present invention is a method for measuring the temperature of the back surface of the slab in the heating furnace using a radiation thermometer. In the above, the radiation thermometer is installed at a position where the back surface of the slab is looked up, and a protection member is installed above the radiation thermometer, and the temperature of the back surface of the slab is measured with the temperature direction of the radiation thermometer set diagonally above. It is characterized by doing.
【０００９】[0009]
【実施例】本発明の具体的実施例を図面に基づき説明す
る。なお、本発明は以下の実施例に何ら限定されるもの
ではない。Embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following examples.
【００１０】図１は本発明法を具体的に実施する装置構
成の一例を示し、加熱炉全体を示している。２は放射温
度計、３はプロテクタ、４はバーナを各示す。加熱炉１
内において、スラブ５は矢印方向に移動する。FIG. 1 shows an example of an apparatus configuration for specifically carrying out the method of the present invention, showing the entire heating furnace. 2 is a radiation thermometer, 3 is a protector, and 4 is a burner. Heating furnace 1
Inside, the slab 5 moves in the direction of the arrow.
【００１１】本実施例では、放射温度計２は炉天井部お
よび炉床にそれぞれ設置されている。特に、炉床に設置
される放射温度計2aはその測温方向が斜め上方となるよ
うに測定部が傾斜して設置されている。また、この放射
温度計2aは、スラブ５から落下するスケールを防止する
ためのプロテクタ３に上方からすっぽり囲まれている。In this embodiment, the radiation thermometer 2 is installed in the furnace ceiling and the furnace floor, respectively. In particular, the radiation thermometer 2a installed on the hearth is installed so that the measuring section is inclined so that the temperature measuring direction is obliquely upward. The radiation thermometer 2a is completely surrounded from above by a protector 3 for preventing scales falling from the slab 5.
【００１２】該プロテクタ３は、図２に示すように鍔31
が備わった側板32上方に穴33が設けられており、傾斜し
て設置される前記放射温度計2aがその穴33を通って測温
できるようになっている。The protector 3 has a collar 31 as shown in FIG.
A hole 33 is provided above the side plate 32 equipped with, and the radiation thermometer 2a installed at an inclination can measure the temperature through the hole 33.
【００１３】このように、放射温度計2aの上部側の周囲
にはプロテクタ３が設置されているが、放射温度計2aは
その測温方向が斜め上方となっており、かつその測温方
向の途中にはプロテクタ側板32に穴33が設けられている
ので、被測温体の測定には何の支障もないものとなって
いる。As described above, the protector 3 is installed around the upper side of the radiation thermometer 2a, but the radiation thermometer 2a has its temperature measuring direction obliquely upward, and the temperature measuring direction is Since the protector side plate 32 is provided with the hole 33 in the middle thereof, there is no hindrance to the measurement of the temperature-measured body.
【００１４】次に、以上よりなる本実施例のスラブの温
度測定について説明する。Next, the temperature measurement of the slab of the present embodiment constructed as above will be described.
【００１５】加熱炉１内に装入され、移動するスラブ５
は、まず炉天井部に設置された放射温度計2bによりその
上面側の温度が測定される。一方、その裏面は炉床に傾
斜して設置された放射温度計2aによりプロテクタ３の穴
33を通して測温される。この際、移動するスラブ５から
はスケールが炉床に落下し、また堆積していくが、炉床
の放射温度計2aは上方からプロテクタ３にすっぽり囲ま
れ、しかも斜め上方となる測温方向の前記途中の穴33の
周囲に鍔32が備わっているため、スケールによる影響は
ほとんど受けずにスラブ５裏面の測温が可能となってい
る。A slab 5 that is loaded into the heating furnace 1 and moves.
First, the temperature on the upper surface side is measured by the radiation thermometer 2b installed on the furnace ceiling. On the other hand, the back surface of the protector 3 is provided with a hole in the protector 3 by the radiation thermometer 2a installed inclining to the hearth
Temperature is measured through 33. At this time, the scale falls from the moving slab 5 to the hearth and accumulates on it, but the radiation thermometer 2a of the hearth is completely surrounded by the protector 3 from above, and moreover, in the temperature measurement direction diagonally above. Since the collar 32 is provided around the hole 33 on the way, the temperature of the back surface of the slab 5 can be measured without being affected by the scale.
【００１６】[0016]
【発明の効果】以上説明したように、本発明に係る温度
測定方法によれば、スラブから落下しまた炉床に堆積す
るスケールの影響を受けることなく、スラブの裏面温度
を正確に測定することができるものとなる。また、それ
によりスラブの正確な温度管理が可能となって熱間圧延
の加熱炉操業を効率よく行えるものとなる。As described above, according to the temperature measuring method of the present invention, the backside temperature of the slab can be accurately measured without being affected by the scale that drops from the slab and accumulates on the hearth. Will be possible. Further, as a result, the temperature of the slab can be accurately controlled, and the heating furnace operation for hot rolling can be efficiently performed.
【図１】本発明法を実施する一構成例を示す説明図であ
る。FIG. 1 is an explanatory diagram showing a structural example for carrying out the method of the present invention.
【図２】本実施例に用いられたプロテクタを示す斜視図
である。FIG. 2 is a perspective view showing a protector used in this embodiment.
１ 加熱炉 ２、2a、2b 放射温度計 ３ プロテクタ ４ バーナ ５ スラブ 1 Heating furnace 2, 2a, 2b Radiation thermometer 3 Protector 4 Burner 5 Slab
───────────────────────────────────────────────────── フロントページの続き (72)発明者 網野 和文 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazufumi Amino 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd.
Claims (1)
面の温度を測定する加熱炉内スラブ裏面の温度測定方法
において、スラブ裏面を上方に見上げる位置に放射温度
計を設置するとともに、該放射温度計の上部に防御部材
を設置し、前記放射温度計の測温方向を斜め上方とし
て、スラブ裏面の温度を測定することを特徴とする加熱
炉内スラブ裏面の温度測定方法。1. In a method for measuring the temperature of the back surface of a slab in a heating furnace, which uses a radiation thermometer to measure the temperature of the back surface of a slab in a heating furnace, the radiation thermometer is installed at a position where the back surface of the slab is looked up. A method for measuring the temperature of the back surface of a slab in a heating furnace, wherein a protection member is installed above the radiation thermometer, and the temperature of the back surface of the slab is measured with the temperature direction of the radiation thermometer set obliquely upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3356852A JPH05180579A (en) | 1991-12-26 | 1991-12-26 | Measuring method for temperature of rear surface of slab in heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3356852A JPH05180579A (en) | 1991-12-26 | 1991-12-26 | Measuring method for temperature of rear surface of slab in heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05180579A true JPH05180579A (en) | 1993-07-23 |
Family
ID=18451087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3356852A Withdrawn JPH05180579A (en) | 1991-12-26 | 1991-12-26 | Measuring method for temperature of rear surface of slab in heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05180579A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012230049A (en) * | 2011-04-27 | 2012-11-22 | Shimadzu Corp | Vacuum processing apparatus |
| KR101225785B1 (en) * | 2010-09-29 | 2013-01-23 | 현대제철 주식회사 | Temperature control method of heating furnace |
| JP2014037915A (en) * | 2012-08-16 | 2014-02-27 | Chugai Ro Co Ltd | Continuous heating furnace |
-
1991
- 1991-12-26 JP JP3356852A patent/JPH05180579A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101225785B1 (en) * | 2010-09-29 | 2013-01-23 | 현대제철 주식회사 | Temperature control method of heating furnace |
| JP2012230049A (en) * | 2011-04-27 | 2012-11-22 | Shimadzu Corp | Vacuum processing apparatus |
| JP2014037915A (en) * | 2012-08-16 | 2014-02-27 | Chugai Ro Co Ltd | Continuous heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990311 |