JPS6117919A - Temperature measuring instrument of molten metal - Google Patents
Temperature measuring instrument of molten metalInfo
- Publication number
- JPS6117919A JPS6117919A JP59139847A JP13984784A JPS6117919A JP S6117919 A JPS6117919 A JP S6117919A JP 59139847 A JP59139847 A JP 59139847A JP 13984784 A JP13984784 A JP 13984784A JP S6117919 A JPS6117919 A JP S6117919A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- measuring
- temp
- window
- measurement
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 33
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 238000010926 purge Methods 0.000 claims abstract description 12
- 239000011261 inert gas Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract 2
- 230000005855 radiation Effects 0.000 claims description 8
- 239000012780 transparent material Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000011819 refractory material Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000009529 body temperature measurement Methods 0.000 description 6
- 238000007670 refining Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 1
- -1 and in some cases Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000006903 response to temperature Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
- G01J5/061—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity by controlling the temperature of the apparatus or parts thereof, e.g. using cooling means or thermostats
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0037—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids
- G01J5/004—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids by molten metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/041—Mountings in enclosures or in a particular environment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
- G01J5/051—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path using a gas purge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0818—Waveguides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0875—Windows; Arrangements for fastening thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0893—Arrangements to attach devices to a pyrometer, i.e. attaching an optical interface; Spatial relative arrangement of optical elements, e.g. folded beam path
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、溶融金屑容器内の溶融金属の温度を連続的
に測定する装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to an apparatus for continuously measuring the temperature of molten metal in a container of molten metal scraps.
従来技術の問題点
鉄鋼の製鋼過程において溶鋼温度を迅速に測定すること
は、操業上極めて重要である。一般に溶鋼の精錬及び鋳
造工程においては溶鋼温度に基づいて、操業条件を適宜
制御して精錬的中率と歩留りの向上、全製鋼時間の短縮
等を図るようにしている。Problems with the Prior Art It is extremely important for operations to quickly measure the temperature of molten steel during the steelmaking process. Generally, in the molten steel refining and casting process, operating conditions are appropriately controlled based on the molten steel temperature in order to improve the refining accuracy and yield, shorten the total steel manufacturing time, etc.
従来、溶鋼の精錬及び鋳造工程において溶鋼温度を測定
する手段としては、熱電対を保護管で保護した測温プロ
ーブを溶鋼中に浸漬して、間欠的もしくは連続的に測温
する方法が用いられている。Conventionally, as a means of measuring molten steel temperature in the molten steel refining and casting process, a method has been used in which a temperature measuring probe with a thermocouple protected by a protection tube is immersed in molten steel and the temperature is measured intermittently or continuously. ing.
しかし、このような測温プローブを用いた場合、測温タ
イミングが間欠的であったり、もしくは連続的に測温可
能な測温プローブを用いたとしても測温プローブの保護
管が耐熱構造であるために溶鋼中の温度変化に対する応
答性が悪くなるといった欠点があった。However, when such temperature measurement probes are used, the timing of temperature measurement is intermittent, or even if a temperature measurement probe that can measure temperature continuously is used, the protection tube of the temperature measurement probe has a heat-resistant structure. Therefore, there was a drawback that the response to temperature changes in molten steel deteriorated.
発明の目的
この発明は、前記問題点にかんがみてなされたものであ
り、その目的とするところは溶融金属容器中の溶融金属
の温度を連続的にかつ応答遅れを生じることなく測温す
るためのものである。Purpose of the Invention The present invention has been made in view of the above-mentioned problems, and its purpose is to continuously measure the temperature of molten metal in a molten metal container without causing a response delay. It is something.
発明の構成
この発明は、溶融金属容器の側壁部または底部に連通す
る計測管と、該計測管の他端を密封する耐熱透明体の計
測窓と、該計測窓に隣接する放射温度計と、Ａｉｌ記計
測管より分岐して不活性ガス供給源に連通ずるパージ配
管を備えた溶融金属の温度測定装置であることを要旨と
する。Structure of the Invention The present invention provides a measurement tube communicating with a side wall or bottom of a molten metal container, a measurement window made of a heat-resistant transparent material that seals the other end of the measurement tube, and a radiation thermometer adjacent to the measurement window. The gist of the present invention is that it is a molten metal temperature measuring device equipped with a purge pipe that branches off from the Ail measurement pipe and communicates with an inert gas supply source.
発明の具体例
以下、添付図面に基づいて、この発明の具体例を詳細に
説明する。Specific Examples of the Invention Specific examples of the present invention will be described in detail below with reference to the accompanying drawings.
第１図はこの発明の一実施例を示す図であり、（１）は
溶融金属容器、０］）は溶融金属容器（１）の鉄皮、０
埴は同じく溶融金属容器（１）の内張り耐火物、（２）
は測温対象である溶融金属、（３）は計測管（４）を鉄
皮０１）に固着するためのフランジ、（５）はパージ配
管、（６）は放射温度計、（７）は放射温度計を収容す
る測定室、（８）は溶融金属（２）からの放射熱を測定
室（７）に通過させるための耐熱ガラス製または透光性
セラミックス等の耐熱性透明体の計測窓、（９）は前記
放射温度計（６）からの温度検出信号を溶融金属温度に
変換するための信号処理装置１、Ｑｌは前記信号処理装
置（９）からの温度出力を表示するための表示装置であ
る。FIG. 1 is a diagram showing an embodiment of the present invention, where (1) is a molten metal container, 0]) is an iron shell of the molten metal container (1), and 0
Clay is also the lining refractory of the molten metal container (1), (2)
is the molten metal whose temperature is to be measured, (3) is the flange for fixing the measurement tube (4) to the steel shell 01), (5) is the purge pipe, (6) is the radiation thermometer, and (7) is the radiation A measurement chamber that accommodates a thermometer; (8) is a measurement window made of heat-resistant transparent material such as heat-resistant glass or translucent ceramic for allowing radiant heat from the molten metal (2) to pass through the measurement chamber (7); (9) is a signal processing device 1 for converting the temperature detection signal from the radiation thermometer (6) into a molten metal temperature, and Ql is a display device for displaying the temperature output from the signal processing device (9). It is.
この実施例において、計測管（４）は溶融金属容器（１
）の側壁部の溶融金属（２）の湯面Ｖベルより下部の位
置１こ設けられている。In this example, the measuring tube (4) is the molten metal container (1
) is provided at one position below the molten metal (2) level V bell on the side wall of the molten metal (2).
そしてｕ計測管（４）は溶融金属か流出しないように、
また計測管（４）の冷却も兼ねてパージ配管（５）が分
岐して取付けられており、Ａｒ等の不活性ガス供給源（
図示せず）からの不活性ガスを所定の圧力、流遣でパー
ジされる。計測窓（８）は前記不活性ガスのパージ圧力
で破壊されず、かつ溶融金属（２）からの放射熱１こ耐
えるような耐熱ガラスを用い、測定室（７）へ放射熱を
通過させる。ｈｒＪ記計測窓（８）を通過した放射熱は
放射温度計（６）により温度検出信号に変換され°Ｃ信
号処理装置（９）Ｉこ入力される。信号処理装置（９）
では予め較正された放射温度計（６）からの温度検出信
号と溶融金属温度の関係を記憶しておき、この記憶デ°
−夕と実際の測温時の温度検出信号に基づいて表示装置
Ｏｎへ溶融金属（２）の温度として出力する。表示装置
０りは例えばＣＲＴ、ニキンー等の電光表示板、その他
どのようなタイプの装置を用いてもよい。また表示装置
αＯは、これに換えて記録装置を用いてもよく、あるい
はそれらを併用することもできる。And the u measurement tube (4) is made to prevent molten metal from flowing out.
In addition, a purge pipe (5) is branched and installed to cool the measurement pipe (4), and an inert gas supply source such as Ar (
It is purged with an inert gas from (not shown) at a predetermined pressure. The measurement window (8) is made of heat-resistant glass that will not be destroyed by the purge pressure of the inert gas and can withstand 1 hour of radiant heat from the molten metal (2), and allows the radiant heat to pass through to the measurement chamber (7). The radiant heat passing through the measurement window (8) is converted into a temperature detection signal by the radiation thermometer (6) and inputted to the °C signal processing device (9). Signal processing device (9)
Now, store the relationship between the temperature detection signal from the radiation thermometer (6) that has been calibrated in advance and the molten metal temperature, and use this memory data.
- Outputs the temperature of the molten metal (2) to the display device On based on the temperature detection signal at the time of actual temperature measurement. The display device 0 may be, for example, a CRT, an electronic display board such as Nikin, or any other type of device. Further, a recording device may be used instead of the display device αO, or a recording device may be used in combination with the display device αO.
次に、第２図にこの発明の他の実施例を示す。Next, FIG. 2 shows another embodiment of the present invention.
図中、ｆ４１１は計測外管、（欄は計測内管、（梠はス
ペーサ、ｌ１５◇及び６のはパージ配管である。第３図
は第２図に示す実施例Ａ−Ａ矢視図であり、スペーサ（
４３の断面にはパージ用の不活性ガスの通気孔（４４）
が多数、設けられている。計測管（４）をこのような二
重管構造にすることにより、すぐれた冷却効果が達成で
き、その結果として計測管（４）の溶融金属（２）側先
端の溶損を軽減できる。なお、第３図中の０１）はフリ
ンジ、に）はフランジ０１）を鉄皮０１）に締結するボ
ルトを示す。In the figure, f411 is the measurement outer pipe, (column is the measurement inner pipe, (the box is the spacer, l15◇ and 6 are the purge pipes. Fig. 3 is a view from the arrow A-A of the embodiment shown in Fig. 2. Yes, spacer (
There is an inert gas vent (44) in the cross section of 43 for purging.
Many are provided. By forming the measurement tube (4) into such a double tube structure, an excellent cooling effect can be achieved, and as a result, it is possible to reduce melting damage at the tip of the measurement tube (4) on the molten metal (2) side. In addition, 01) in FIG. 3 indicates a fringe, and 2) indicates a bolt that fastens the flange 01) to the steel shell 01).
この発明装置に用いる計測管（４）及びパージ配管（５
）には耐熱性が要求されるため銅、ステンレス等の金属
材料や、場合によってはセラミックスもしくは前記耐熱
性の金属とセリミックスの複合材料などが用いられる。Measurement pipe (4) and purge pipe (5) used in this invention device
) requires heat resistance, so metal materials such as copper and stainless steel, and in some cases, ceramics or composite materials of the heat-resistant metals and ceramics are used.
また、計測管（４）と測定室（７）は作業性、メインテ
ナンス性の点より、ねじ込み式その他の嵌合手段により
取り外し可能にするのが好ましい。Further, from the viewpoint of workability and maintenance, it is preferable that the measurement tube (4) and the measurement chamber (7) be made removable by screwing or other fitting means.
さらに、第１図及び第２図に示すこの発明の実施例にお
いて計測管（４）の取付位置は溶融金属容器（１）の側
壁部であるが、底部に取付けても同様の効果が得られる
。Further, in the embodiment of the present invention shown in FIGS. 1 and 2, the measurement tube (4) is attached to the side wall of the molten metal container (1), but the same effect can be obtained even if it is attached to the bottom. .
発明の効果
このような構成の温度測定装置を例えば鉄鋼の製鋼過程
における転炉、電気炉、その他の精錬炉、及び鋳込時の
取鍋等に用いることにより、溶鋼温度を連続的に、かつ
時間遅れを生じることなく精度よく測温でき、その結果
として精錬時の終点温度的中率の向上、鋳込時の溶鋼ノ
ズル詰りの防止等に極めて大きな効果を発揮できる。Effects of the Invention By using a temperature measuring device with such a configuration, for example, in converters, electric furnaces, other refining furnaces in the steel manufacturing process, ladles during casting, etc., the temperature of molten steel can be continuously and continuously measured. Temperature measurement can be performed with high accuracy without any time delay, and as a result, it can be extremely effective in improving the end point temperature accuracy during refining and preventing clogging of molten steel nozzles during casting.
第１図はこの発明の一実施例を示す断面図、第２図はこ
の発明の他の実施例を示す断面図、第３図は第２図Ａ−
Ａ縦断矢視図である。
１・・・溶融金属容器、２・・・溶融金属、３．３１・
・・７ワンジ、４・・・計測管、５・・・パージ配管、
６・・・放射温度計、７・・・測定室、８・・・計測窓
、９・・・信号処理装置、１０・・・表示装置、４１・
・・計測外管、４２・・・計測内管、４３・・・スペー
サ、５１．５２・・・パージ配管。FIG. 1 is a sectional view showing one embodiment of this invention, FIG. 2 is a sectional view showing another embodiment of this invention, and FIG. 3 is FIG.
It is a longitudinal arrow view of A. 1... Molten metal container, 2... Molten metal, 3.31.
...7 Wange, 4...Measuring tube, 5...Purge piping,
6... Radiation thermometer, 7... Measurement chamber, 8... Measurement window, 9... Signal processing device, 10... Display device, 41...
...Measurement outer pipe, 42...Measurement inner pipe, 43...Spacer, 51.52...Purge piping.
Claims (1)
該計測管の他端を密封する耐熱透明体の計測窓と、該計
測窓に隣接する放射温度計と、前記計測管より分岐して
不活性ガス供給源に連通するパージ配管を備えたことを
特徴とする溶融金属の温度測定装置。a measurement pipe communicating with the side wall or bottom of the molten metal container;
A measuring window made of a heat-resistant transparent material sealing the other end of the measuring tube, a radiation thermometer adjacent to the measuring window, and a purge pipe branching from the measuring tube and communicating with an inert gas supply source. Characteristics of molten metal temperature measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59139847A JPS6117919A (en) | 1984-07-05 | 1984-07-05 | Temperature measuring instrument of molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59139847A JPS6117919A (en) | 1984-07-05 | 1984-07-05 | Temperature measuring instrument of molten metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6117919A true JPS6117919A (en) | 1986-01-25 |
Family
ID=15254909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59139847A Pending JPS6117919A (en) | 1984-07-05 | 1984-07-05 | Temperature measuring instrument of molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6117919A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63160327A (en) * | 1986-12-24 | 1988-07-04 | Mitsubishi Monsanto Chem Co | Annealing system for semiconductor wafer |
| JPH11281485A (en) * | 1998-03-31 | 1999-10-15 | Nippon Steel Corp | Continuous temperature measuring method for molten steel |
| JP2003013131A (en) * | 2001-07-06 | 2003-01-15 | Nippon Steel Corp | Method for blowing gas through tuyere for measuring temperature |
| JP2009095298A (en) * | 2007-10-18 | 2009-05-07 | Iseki & Co Ltd | Direct sower |
-
1984
- 1984-07-05 JP JP59139847A patent/JPS6117919A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63160327A (en) * | 1986-12-24 | 1988-07-04 | Mitsubishi Monsanto Chem Co | Annealing system for semiconductor wafer |
| JPH11281485A (en) * | 1998-03-31 | 1999-10-15 | Nippon Steel Corp | Continuous temperature measuring method for molten steel |
| JP2003013131A (en) * | 2001-07-06 | 2003-01-15 | Nippon Steel Corp | Method for blowing gas through tuyere for measuring temperature |
| JP4672198B2 (en) * | 2001-07-06 | 2011-04-20 | 新日本製鐵株式会社 | Gas blowing method for temperature measuring tuyere |
| JP2009095298A (en) * | 2007-10-18 | 2009-05-07 | Iseki & Co Ltd | Direct sower |
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