JPH05180701A - Device for continuously measuring temperature of molten metal, etc. - Google Patents
Device for continuously measuring temperature of molten metal, etc.Info
- Publication number
- JPH05180701A JPH05180701A JP35916091A JP35916091A JPH05180701A JP H05180701 A JPH05180701 A JP H05180701A JP 35916091 A JP35916091 A JP 35916091A JP 35916091 A JP35916091 A JP 35916091A JP H05180701 A JPH05180701 A JP H05180701A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- temperature measuring
- measuring device
- thermocouples
- continuous temperature
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 49
- 239000002184 metal Substances 0.000 title claims abstract description 49
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000011819 refractory material Substances 0.000 claims abstract description 8
- 230000003028 elevating effect Effects 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 abstract description 15
- 230000014759 maintenance of location Effects 0.000 abstract 3
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 239000000523 sample Substances 0.000 description 13
- 238000009529 body temperature measurement Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- LIXXICXIKUPJBX-UHFFFAOYSA-N [Pt].[Rh].[Pt] Chemical compound [Pt].[Rh].[Pt] LIXXICXIKUPJBX-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、溶融金属等の連続測温
が可能である溶融金属等の連続測温装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous temperature measuring device for molten metal or the like capable of continuously measuring temperature of molten metal or the like.
【０００２】[0002]
【従来の技術】従来、熱電対を使用するタンディッシュ
内の溶融金属等の連続測温装置として、例えば、特開昭
５２−１３１７７６、特開昭６１−６８５２５、特開昭
６２−２８６２６、特開平１−１６９３２９、実開昭６
１−２０３３３３に記載されたような溶融金属の測温計
がある。これらの溶融金属の測温計は、いずれも測定対
象物が高温の溶融金属等に用いるため、外装をアルミナ
−黒鉛質等の耐火材を用いた保護管とし、該保護管の内
部に熱電対を一式挿入して構成してある。2. Description of the Related Art Conventionally, as a continuous temperature measuring device for molten metal in a tundish using a thermocouple, for example, JP-A-52-131776, JP-A-61-68525, JP-A-62-28626 and JP-A-62-28626 have been proposed. Kaihei 1-169329, Actual Kaisho 6
There are molten metal thermometers such as those described in 1-203333. Since all of these molten metal thermometers are used for high-temperature molten metal or the like to be measured, the exterior is a protective tube using a refractory material such as alumina-graphite, and a thermocouple is provided inside the protective tube. It is configured by inserting a set of.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記従
来の溶融金属等の連続測温装置は、その構成部材の保護
管や熱電対等の資材が高額であると共に、製造に高度な
技術を要し、かなり高価格品であるにも関わらず測定対
象物が高温であるため、保護管の損耗、熱電対の断線等
により寿命は短いものであった。従って、従来の溶融金
属等の連続測温装置を用いて溶融金属等の連続測温をな
す場合には頻繁に該連続測温装置の取外し、取付けを必
要とし、多大な労力を要し、更には不必要に電力等のエ
ネルギーを消耗してしまうという問題点があった。本発
明はこのような事情に鑑みてなされたもので、溶融金属
等の高温の測定対象物を長時間連続して測温することが
可能である長寿命の溶融金属等の連続測温装置を提供す
ることを目的とする。However, in the conventional continuous temperature measuring device for molten metal or the like, the materials such as the protective tube and the thermocouple of the constituent members are expensive, and the manufacturing requires high technology. Despite being a fairly high-priced product, the object to be measured was at a high temperature, so the service life was short due to wear of the protective tube, disconnection of the thermocouple, etc. Therefore, when performing continuous temperature measurement of a molten metal or the like using a conventional continuous temperature measurement device of the molten metal or the like, it is often necessary to remove and install the continuous temperature measurement device, which requires a great deal of labor. Has a problem that it consumes energy such as electric power unnecessarily. The present invention has been made in view of the above circumstances, and provides a continuous temperature measuring device for a long-life molten metal or the like that is capable of continuously measuring the temperature of a high-temperature measurement target such as a molten metal for a long time. The purpose is to provide.
【０００４】[0004]
【課題を解決するための手段】前記目的に沿う請求項１
記載の溶融金属等の連続測温装置は、熱電対を熱伝導性
の良い耐火材からなる保護棒内に縦方向に深さを変えて
複数個内蔵して構成されている。そして、請求項２記載
の溶融金属等の連続測温装置は、請求項１記載の溶融金
属等の連続測温装置の熱電対が内蔵された保護棒の上部
を支持し前記熱電対に接続する多接点コネクターを上部
に備えた保持部材を有し、前記多接点コネクターと対と
なる多接点コネクターを昇降部材の下部に取付け、前記
保護棒及び保持部材のそれぞれが着脱可能として構成さ
れている。更に、請求項３記載の溶融金属等の連続測温
装置は、請求項１または２記載の溶融金属等の連続測温
装置の保護棒の上部にある保持部材の内部を冷却する冷
気導入孔が設けられて構成されている。A method according to the above-mentioned object.
The continuous temperature measuring device for the molten metal or the like described is constructed by incorporating a plurality of thermocouples in a protection rod made of a refractory material having good thermal conductivity, with the depth thereof varied in the vertical direction. The continuous temperature measuring device for molten metal or the like according to claim 2 supports the upper portion of a protection rod having a built-in thermocouple of the continuous temperature measuring device for molten metal or the like according to claim 1 and connects to the thermocouple. A holding member having a multi-contact connector on an upper portion thereof is provided, a multi-contact connector paired with the multi-contact connector is attached to a lower portion of an elevating member, and each of the protection rod and the holding member is detachable. Furthermore, the continuous temperature measuring device for molten metal or the like according to claim 3 has a cold air introducing hole for cooling the inside of the holding member above the protection rod of the continuous temperature measuring device for molten metal or the like according to claim 1 or 2. It is provided and configured.
【０００５】[0005]
【作用】請求項１記載の溶融金属等の連続測温装置にお
いては、複数個の熱電対が保護棒内に深さを変えて内蔵
させてあるので、最深部にある熱電対の感温部を溶融金
属等の高温の測定対象物に浸漬させて測温し、その測温
過程において保護棒が損耗し熱電対が断線すればより深
く浸漬させて、次の熱電対の感温部を浸漬させ、順次こ
の過程を繰り返して連続して測温を行い、精錬の進展と
昇温状況を観察し、目標温度に達すれば、直ちに出鋼す
ることができる。請求項２記載の溶融金属等の連続測温
装置においては、保持部材と昇降部材が、対となる多接
点コネクターのそれぞれが備えられ、自在に着脱するこ
とができる。また、保護棒が保持部材から着脱可能にな
っているので、必要に応じて迅速に保護棒及び保持部材
を交換することができる。請求項３記載の溶融金属等の
連続測温装置は、保持部材の内部を冷却する冷気導入孔
が設けられおり、外部から冷気を保持部材内に導入し
て、熱電対の上部及び多接点コネクターを冷却して感温
部が溶融金属等に浸漬していても正常に測温することが
できる。In the continuous temperature measuring device for molten metal or the like according to claim 1, since a plurality of thermocouples are built in the protection rod at different depths, the temperature sensing part of the thermocouple located at the deepest part. If the protective rod is damaged during the temperature measurement process and the thermocouple breaks during the temperature measurement, the temperature sensor is immersed deeper and the temperature sensing part of the next thermocouple is immersed. Then, this process is sequentially repeated to continuously measure the temperature, observe the progress of refining and the temperature rising state, and if the target temperature is reached, the steel can be immediately tapped. In the continuous temperature measuring device for molten metal or the like according to the second aspect, the holding member and the elevating member are provided with the respective multi-contact connectors that form a pair, and can be freely attached and detached. Further, since the protection rod is removable from the holding member, it is possible to quickly replace the protection rod and the holding member as needed. The continuous temperature measuring device for molten metal or the like according to claim 3 is provided with a cold air introduction hole for cooling the inside of the holding member, and the cold air is introduced into the holding member from the outside to provide an upper portion of the thermocouple and the multi-contact connector. Even if the temperature sensing part is cooled and the temperature sensing part is immersed in molten metal or the like, the temperature can be normally measured.
【０００６】[0006]
【実施例】続いて、添付した図面を参照しつつ、本発明
を具体化した実施例につき説明し、本発明の理解に供す
る。ここに、図１は本発明の一実施例に係る溶融金属等
の連続測温装置の断面図、図２は熱電対の断面図、図３
は溶融金属等の連続測温装置を用いた溶融金属の測温過
程の説明図である。図１に示すように、本考案の一実施
例に係る溶融金属等の連続測温装置１０は、複数の熱電
対１１、１２、１３と、該熱電対１１、１２、１３を縦
方向に埋設した高品位のＡｌ2 Ｏ3 系の耐火材からなる
保護棒の一例である連続測温プローブ１４と、前記熱電
対１１、１２、１３と連続測温プローブ１４を保持する
保持部材の一例であるスリーブホルダー１５と、該スリ
ーブホルダー１５を取付ける昇降部材の一例である昇降
具１６とを有する。前記熱電対１１は、図２に示すよう
に、外側面に螺子部１７が形成され周壁の下方にフラン
ジ部を有する装着部材１８と、該装着部材１８の内側に
嵌合して中央に孔１９を有する固定金具２０と、上方周
縁が該固定金具２０の内側に挿入されて耐火セメント等
の耐火性接着材２１を用いて接着された高気密磁器製保
護管２２と、該高気密磁器製保護管２２の内部に挿入さ
れその周縁の上方が前記固定金具２０の孔１９に嵌合さ
れ耐火性接着材２１を用いて接着固定された絶縁硝子管
２３と、該絶縁硝子管２３の内部に装填され先端の折り
返しの部分を外部に突出させた白金−白金ロジュームか
らなる線材２４と、該線材２４と絶縁硝子管２３の間隙
に充填した高純度アルミナ粉末等を用いた絶縁保護材２
５と、前記高気密磁器製保護管２２の底部と線材２４の
先端部との間隙にＡｌ2 Ｏ3 系の素材を用いて充填成形
された絶縁充填材２６を有し、線材２４の先端部は感温
部２７を構成する。Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 is a sectional view of a continuous temperature measuring device for molten metal or the like according to an embodiment of the present invention, FIG. 2 is a sectional view of a thermocouple, and FIG.
FIG. 4 is an explanatory diagram of a temperature measuring process of molten metal using a continuous temperature measuring device for molten metal or the like. As shown in FIG. 1, a continuous temperature measuring device 10 for molten metal or the like according to an embodiment of the present invention includes a plurality of thermocouples 11, 12, 13 and the thermocouples 11, 12, 13 embedded vertically. 2 is an example of a continuous temperature measuring probe 14, which is an example of a protective rod made of a high-quality Al 2 O 3 -based refractory material, and a holding member which holds the thermocouples 11, 12, 13 and the continuous temperature measuring probe 14. It has a sleeve holder 15 and an elevating tool 16 which is an example of an elevating member to which the sleeve holder 15 is attached. As shown in FIG. 2, the thermocouple 11 has a mounting member 18 having a screw portion 17 formed on an outer surface and a flange portion below a peripheral wall, and a mounting member 18 fitted inside the mounting member 18 and provided with a hole 19 at a center thereof. And a protective metal fitting 22 having an upper peripheral edge inserted inside the fixing metal fitting 20 and bonded with a fire resistant adhesive material 21 such as refractory cement, and the high airtight porcelain protective tube 22. An insulating glass tube 23 which is inserted into the inside of the tube 22 and whose upper edge is fitted into the hole 19 of the fixing metal fitting 20 and fixed by adhesion with a refractory adhesive 21 and the inside of the insulating glass tube 23. A wire rod 24 made of platinum-platinum rhodium with its folded back portion protruding outward, and an insulating protective material 2 using high-purity alumina powder or the like filled in the gap between the wire rod 24 and the insulating glass tube 23
5 and an insulating filler 26 formed by molding using an Al 2 O 3 -based material in the gap between the bottom of the high airtight porcelain protective tube 22 and the tip of the wire 24, and the tip of the wire 24. Constitutes the temperature sensing section 27.
【０００７】前記熱電対１２、１３は、図１に示すよう
に、熱電対１１を屈曲させた以外は同様な構成であるの
で説明を省略する。前記連続測温プローブ１４は、図１
に示すようにＡｌ2 Ｏ3 −Ｃ系の耐火物で柱状に形成さ
れ、先端が軸心に位置するように複数の挿入穴２８、２
９、３０が穿設され、上方側面には捻子穴３１が穿設さ
れている。前記スリーブホルダー１５は、側面を円筒状
とし上面を板状に形成し、側面の下方には内側に貫通さ
せた固定螺子３２と図示しない外部の冷却手段に接続さ
れる冷気導入孔３３を備え、側面の内側には複数の通気
口３４及び螺子孔３５が設けられた板状の支持部材３６
が接合され、上面には複数の通気孔３７が傾斜して穿設
され、前記上面の中央には連通孔３８が穿設され、多数
の接点を形成した円筒状の多接点コネクター３９を立設
させて形成されている。前記昇降具１６は、下部にフラ
ンジ部を備え側面が円筒状に形成された昇降ホルダー４
０を設け、該昇降ホルダー４０の内側に円筒状の内ホル
ダー４１を備える。前記昇降ホルダー４０は、外側に昇
降アーム４２の一端を固定され、該昇降アーム４２の下
方の側面及びフランジ部には複数の固定螺子４３、４４
がねじ込まれている。The thermocouples 12 and 13 have the same structure except that the thermocouple 11 is bent as shown in FIG. The continuous temperature measuring probe 14 is shown in FIG.
As shown in FIG. 2 , it is formed of Al 2 O 3 -C refractory in a columnar shape, and has a plurality of insertion holes 28, 2 so that the tips are located at the axial center.
9 and 30 are bored, and a screw hole 31 is bored in the upper side surface. The sleeve holder 15 has a cylindrical side surface and a plate-shaped upper surface, and has a fixing screw 32 penetrating inwardly and a cold air introducing hole 33 connected to an external cooling means (not shown) below the side surface. A plate-shaped support member 36 provided with a plurality of vent holes 34 and screw holes 35 inside the side surface.
, A plurality of ventilation holes 37 are formed obliquely on the upper surface, a communication hole 38 is formed in the center of the upper surface, and a cylindrical multi-contact connector 39 having a large number of contacts is provided upright. Is formed. The elevating tool 16 includes an elevating holder 4 having a flange portion on a lower portion and a cylindrical side surface.
0, and a cylindrical inner holder 41 is provided inside the elevating holder 40. The elevating holder 40 has one end of an elevating arm 42 fixed to the outside, and a plurality of fixing screws 43, 44 on the lower side surface and the flange portion of the elevating arm 42.
Is screwed in.
【０００８】前記内ホルダー４１は、前記多接点コネク
ター３９と対となる多接点コネクター４５を備え、昇降
ホルダー４０の内側に固定螺子４３がねじ込まれて固定
されている。前記熱電対１１、１２、１３のそれぞれは
連続測温プローブ１４の挿入穴２８、２９、３０に挿入
される。該熱電対１１、１２、１３と挿入穴２８、２
９、３０のそれぞれの間隙には、Ａｌ2 Ｏ3 −Ｃ系、Ｍ
ｇＯ−Ｃ系、ＭｇＯ系の粉末を水または、合成樹脂バイ
ンダーで混練した充填材４６が充填され乾燥により熱電
対１１、１２、１３を連続測温プローブ１４に固定して
いる。前記熱電対１１、１２、１３及び連続測温プロー
ブ１４は、図１に示すように、熱電対１１、１２、１３
の装着部材１８の螺子部１７（図２参照）が、支持部材
３６の螺子孔３５にねじ込まれ、また、連続測温プロー
ブ１４の捻子穴３１に固定螺子３２がねじ込まれスリー
ブホルダー１５に固定されている。前記スリーブホルダ
ー１５は、多接点コネクター３９と多接点コネクター４
５が接合するように内ホルダー４１に嵌入され昇降ホル
ダー４０の固定螺子４４がスリーブホルダー１５の上面
にねじ込まれて固定されている。前記熱電対１１、１
２、１３の線材２４上端のそれぞれは、接合点４７ａに
おいて補償導線４７の一端に結線され、他端は多接点コ
ネクター３９の接点のそれぞれに接続されている。前記
多接点コネクター４５には補償導線４８の一端が接続さ
れ図示ないレコーダー、温度表示器等の外部測定系と整
合通電が可能に接続されている。The inner holder 41 is provided with a multi-contact connector 45 which is paired with the multi-contact connector 39, and a fixing screw 43 is screwed and fixed inside the elevating holder 40. The thermocouples 11, 12 and 13 are inserted into the insertion holes 28, 29 and 30 of the continuous temperature measuring probe 14. The thermocouples 11, 12, 13 and the insertion holes 28, 2
In each of the gaps 9 and 30, Al 2 O 3 -C system, M
A filler 46 prepared by kneading gO-C-based or MgO-based powder with water or a synthetic resin binder is filled and dried to fix the thermocouples 11, 12 and 13 to the continuous temperature measuring probe 14. As shown in FIG. 1, the thermocouples 11, 12, and 13 and the continuous temperature measuring probe 14 have thermocouples 11, 12, and 13, respectively.
The screw portion 17 (see FIG. 2) of the mounting member 18 is screwed into the screw hole 35 of the support member 36, and the fixing screw 32 is screwed into the screw hole 31 of the continuous temperature measuring probe 14 and fixed to the sleeve holder 15. ing. The sleeve holder 15 includes a multi-contact connector 39 and a multi-contact connector 4
The fixing screws 44 of the elevating holder 40 are screwed onto the upper surface of the sleeve holder 15 so as to be fixed so as to be joined together. The thermocouples 11, 1
Each of the upper ends of the wire rods 2 and 13 is connected to one end of the compensation conducting wire 47 at the joint point 47a, and the other end is connected to each of the contacts of the multi-contact connector 39. One end of a compensating lead wire 48 is connected to the multi-contact connector 45, and is connected to an external measurement system such as a recorder or a temperature display (not shown) so that matching current can be supplied.
【０００９】続いて、溶融金属等の連続測温装置１０の
使用方法について図１〜３を用いて説明する。前記溶融
金属等の連続測温装置１０は、図３に示すように、炉底
出鋼方式の直流電気炉４９の側部に備えられた昇降装置
５０に前記昇降アーム４２を介して昇降自在に取付けら
れ補償導線４８が図示しない外部測定系に接続されてい
る。なお、５１は電極であり、５２は溶鋼、５３はアル
ゴン、窒素等の不活性ガスあるいは炭酸ガス等の還元ガ
スで良い。まず、図示しない外部冷却装置を駆動させて
冷気導入孔３３（図１参照）からスリーブホルダー１５
内に冷えた空気や冷却ガス等の冷気を送り込み熱電対１
１、１２、１３の上部及び通気口３４を介して補償導線
４７を冷却し、更に、通気孔３７を介して多接点コネク
ター３９、４５や補償導線４８等を冷却して測定対象物
が高温であっても連続して測温することが可能な状態に
する。そして、経験により予測される出鋼の約１０〜１
５分前の１５５０℃程度の溶鋼５２に、昇降装置５０を
下降させて溶融金属等の連続測温装置１０をＡレベル
（図１参照）まで溶鋼５２内に浸漬させる。該溶融金属
等の連続測温装置１０の熱電対１１は図２に示すように
感温部２７を用いて溶融金属の温度を測定する。時間の
経過と共に連続測温プローブ１４や高気密性磁性保護管
２２が損耗し、線材２４の断線が生じた後は、溶融金属
等の連続測温装置１０をＢレベル（図１参照）まで溶鋼
５２内に浸漬させ、前記と同様に測温する。Next, a method of using the continuous temperature measuring device 10 for molten metal or the like will be described with reference to FIGS. As shown in FIG. 3, the continuous temperature measuring device 10 for the molten metal or the like can be moved up and down via an elevating arm 42 to an elevating device 50 provided on a side portion of a DC electric furnace 49 of a furnace bottom tapping method. The attached compensating lead wire 48 is connected to an external measuring system (not shown). In addition, 51 is an electrode, 52 is molten steel, 53 is an inert gas such as argon and nitrogen, or a reducing gas such as carbon dioxide. First, an external cooling device (not shown) is driven to drive the sleeve holder 15 through the cold air introduction hole 33 (see FIG. 1).
Cool air such as chilled air or cooling gas is fed into the thermocouple 1
The compensating lead wire 47 is cooled through the upper portions of 1, 12, 13 and the vent hole 34, and further the multi-contact connectors 39, 45 and the compensating lead wire 48 are cooled through the vent hole 37 so that the object to be measured is at a high temperature. Even if there is, make it possible to measure temperature continuously. And about 10 to 1 of the tapping steel predicted by experience
The elevating device 50 is lowered in the molten steel 52 at about 1550 ° C. 5 minutes before, and the continuous temperature measuring device 10 for molten metal or the like is immersed in the molten steel 52 up to the A level (see FIG. 1). The thermocouple 11 of the continuous temperature measuring device 10 for the molten metal or the like measures the temperature of the molten metal using the temperature sensing unit 27 as shown in FIG. After the continuous temperature measuring probe 14 and the highly airtight magnetic protection tube 22 are worn away with time and the wire 24 is broken, the continuous temperature measuring device 10 for molten metal or the like is melted to the B level (see FIG. 1). It is immersed in 52 and the temperature is measured in the same manner as above.
【００１０】前記Ｂレベルに位置する線材２４が断線し
た後は、Ｃレベルまで前記と同様に溶鋼５２内に浸漬さ
せて引続き測温を継続する。前記測温のデータは図示し
ない外部測定系に送られ、溶鋼５２の精錬の進展と昇温
状況が逐次把握される。従って、出鋼時間を事前に予測
し、溶鋼５２の温度が出鋼に適した例えば１６５０℃に
なった時点において直ちに出鋼する。以上のように、複
数の熱電対１１、１２、１３を連続測温プローブ１４内
に埋設させて順次溶鋼５２内に浸漬させて使用するので
長時間の寿命を備えている。また、前記溶鋼５２が目標
温度に達した時点において直ちに出鋼することができる
ので、安定した高品質の製品を提供することが可能であ
ると共に、目標温度不足による無駄な待機時間や目標温
度を超過しての出鋼による電気エネルギーの浪費がなく
なり電力の節減、生産性の向上を図ることができる。な
お、直流電気炉４９内の溶鋼５２の量によっては、溶融
金属等の連続測温装置１０を前記ＢまたはＣレベルまで
溶鋼５２中に浸漬させることが不可能である場合が生じ
る。このような場合には、連続測温プローブ１４が損耗
した部位をセラミックスカッターで水平方向に切断し若
干の補修を行い再使用する。After the wire rod 24 located at the B level is broken, it is immersed in the molten steel 52 up to the C level in the same manner as above, and the temperature measurement is continued. The temperature measurement data is sent to an external measurement system (not shown), and the progress of refining of the molten steel 52 and the temperature rise state are sequentially grasped. Therefore, the tapping time is predicted in advance, and tapping is immediately performed when the temperature of the molten steel 52 reaches 1650 ° C. which is suitable for tapping. As described above, a plurality of thermocouples 11, 12, and 13 are embedded in the continuous temperature measuring probe 14 and sequentially immersed in the molten steel 52 for use, so that a long life is provided. In addition, since the molten steel 52 can be immediately tapped when it reaches the target temperature, it is possible to provide a stable and high-quality product, and to avoid unnecessary standby time and target temperature due to insufficient target temperature. It is possible to save electric power and improve productivity by eliminating waste of electric energy due to excessive steel output. Depending on the amount of molten steel 52 in the DC electric furnace 49, it may not be possible to immerse the continuous temperature measuring device 10 for molten metal or the like in the molten steel 52 to the B or C level. In such a case, the site where the continuous temperature measuring probe 14 is worn is cut horizontally with a ceramics cutter, slightly repaired, and reused.
【００１１】前記実施例では熱電対１１、１２、１３の
感温部２７をそれぞれ連続測温プローブ１４の軸心部に
埋設深さを変えて内蔵させたが、必ずしも感温部２７を
前記軸心に設けずに埋設しても良く、例えば、それぞれ
の熱電対を略平行に内蔵させても良い。前記熱電対１
１、１２、１３については、図２に示すような構成によ
るものに限定されるものではなく、例えば、特開平１−
１６９３２９号公報に記載されたような熱電対の絶縁硝
子管の先端部の軸方向にスリット状の切込みを入れ、切
込みの底部に屈曲した線材の先端を露出させて、突出部
を備えた嵌め込み部材を用いて該突出部を切込みに嵌入
させて構成したものや、特開昭５２−１３１７７６号公
報に記載されたような前記絶縁硝子管の内外側に不活性
ガスを導入して構成したもの等、様々な他種の熱電対を
用いることが可能であることは勿論である。前記連続測
温プローブ１４は、Ａｌ2 Ｏ3 −Ｃ系の耐火材を用いて
形成したが、Ａｌ2 Ｏ3 −ＳｉＣ−Ｃ系、ＭｇＯ−Ｃ系
等の他の耐火材を単独で用いても良いし、Ａｌ2 Ｏ3 −
Ｃ系の耐火材をも含めてそれぞれを混合させて用いても
良い。前記高気密性磁性保護管２２は、市販のＪＩＳ規
格第１種磁性保護管を用いても良いが、より高純度の磁
性保護管を採用し、更には高温使用時に熱電対に有害な
成分を出すことのない材料で表面を被覆、コーティング
して高い気密性を有する磁性保護管を用いることが好ま
しい。前記絶縁保護材２５には粉末のものを用いたが、
保護絶縁材として成形体にしたものを用いても良い。In the above-described embodiment, the temperature-sensing portions 27 of the thermocouples 11, 12, 13 are built in the shaft center portion of the continuous temperature-measuring probe 14 with different burial depths. The thermocouples may be embedded without being provided in the core, for example, the thermocouples may be built in substantially parallel to each other. The thermocouple 1
No. 1, 12, and 13 are not limited to those having the configuration shown in FIG.
No. 169329, a slit-shaped notch is made in the axial direction of the tip of the insulating glass tube of the thermocouple, the tip of the bent wire is exposed at the bottom of the notch, and a fitting member having a protrusion is provided. Which is constructed by inserting the protrusion into a notch, or one which is constructed by introducing an inert gas into the inside and outside of the insulating glass tube as described in JP-A-52-131776. Of course, it is possible to use various other types of thermocouples. The continuous temperature measuring probe 14 was formed by using an Al 2 O 3 —C type refractory material, but other refractory materials such as Al 2 O 3 —SiC—C type and MgO—C type were used alone. Good, Al 2 O 3 −
You may mix and use each including C type refractory material. As the high airtight magnetic protection tube 22, a commercially available JIS standard type 1 magnetic protection tube may be used, but a higher purity magnetic protection tube is adopted, and further, harmful components to the thermocouple during high temperature use. It is preferable to use a magnetic protective tube having high airtightness by coating and coating the surface with a material that does not come out. A powdery material was used as the insulating protection material 25.
A molded product may be used as the protective insulating material.
【００１２】[0012]
【発明の効果】請求項１、２及び３記載の溶融金属等の
連続測温装置においては、複数個の熱電対が保護棒内に
深さを変えて内蔵させてあるので、長時間の寿命を備え
ており溶融金属等の高温の測定対象物の測温を連続して
行うことが可能であり、従来の単体の熱電対を用いて測
温するような頻繁に熱電対を交換する必要がなく、生産
性の向上やエネルギーの節減を測ることが可能であり、
多大な経費の節減が可能である。また、請求項２記載の
溶融金属等の連続測温装置においては、保持部材、昇降
部材及び保護棒が着脱自在であり、熱電対や保護棒の補
修や交換を迅速になすことが可能であり、労力の軽減を
測ることができる。更に、請求項３記載の溶融金属等の
連続測温装置においては、保持部材の内部を冷却する冷
気導入孔が設けられおり、感温部が溶融金属等に浸漬し
ていても正常に測温することができる。In the continuous temperature measuring device for molten metal or the like according to claims 1, 2 and 3, since a plurality of thermocouples are incorporated in the protection rod at different depths, a long service life is achieved. Since it is possible to continuously measure the temperature of a high-temperature measurement object such as molten metal, it is necessary to replace the thermocouple frequently as in the case of using a conventional single thermocouple. Without it, it is possible to measure productivity improvement and energy saving,
Significant cost savings are possible. Further, in the continuous temperature measuring device for molten metal or the like according to claim 2, the holding member, the elevating member, and the protection rod are detachable, and the thermocouple and the protection rod can be quickly repaired or replaced. , You can measure the reduction of labor. Furthermore, in the continuous temperature measuring device for molten metal or the like according to claim 3, a cold air introduction hole for cooling the inside of the holding member is provided, and the temperature is normally measured even when the temperature sensing part is immersed in the molten metal or the like. can do.
【図１】本発明の一実施例に係る溶融金属等の連続測温
装置の断面図である。FIG. 1 is a sectional view of a continuous temperature measuring device for molten metal or the like according to an embodiment of the present invention.
【図２】熱電対の断面図である。FIG. 2 is a sectional view of a thermocouple.
【図３】溶融金属等の連続測温装置を用いた溶融金属の
測温過程の説明図である。FIG. 3 is an explanatory diagram of a temperature measuring process of molten metal using a continuous temperature measuring device for molten metal or the like.
１０ 溶融金属等の連続測温装置 １１ 熱電対 １２ 熱電対 １３ 熱電対 １４ 連続測温プローブ １５ スリーブホルダー １６ 昇降具 １７ 螺子部 １８ 装着部材 １９ 孔 ２０ 固定金具 ２１ 耐火性接着材 ２２ 高気密性磁性保護管 ２３ 絶縁硝子管 ２４ 線材 ２５ 絶縁保護材 ２６ 絶縁充填材 ２７ 感温部 ２８ 挿入穴 ２９ 挿入穴 ３０ 挿入穴 ３１ 捻子穴 ３２ 固定螺子 ３３ 冷気導入孔 ３４ 通気口 ３５ 螺子孔 ３６ 支持部材 ３７ 通気孔 ３８ 連通孔 ３９ 多接点コネクター ４０ 昇降ホルダー ４１ 内ホルダー ４２ 昇降アーム ４３ 固定螺子 ４４ 固定螺子 ４５ 多接点コネクター ４６ 充填材 ４７ 補償導線 ４７ａ 接合点 ４８ 補償導線 ４９ 直流電気炉 ５０ 昇降装置 ５１ 電極 ５２ 溶鋼 ５３ アルゴン（窒素あるいは炭酸ガス等） 10 Continuous temperature measuring device for molten metal 11 Thermocouple 12 Thermocouple 13 Thermocouple 14 Continuous temperature probe 15 Sleeve holder 16 Lifting tool 17 Screw part 18 Mounting member 19 Hole 20 Fixing metal fitting 21 Fireproof adhesive 22 High airtight magnetic Protection tube 23 Insulation glass tube 24 Wire material 25 Insulation protection material 26 Insulation filler 27 Temperature sensing part 28 Insertion hole 29 Insertion hole 30 Insertion hole 31 Screw hole 32 Fixing screw 33 Cold air introducing hole 34 Vent hole 35 Screw hole 36 Supporting member 37 through Pore 38 Communication hole 39 Multi-contact connector 40 Elevating holder 41 Inner holder 42 Elevating arm 43 Fixing screw 44 Fixing screw 45 Multi-contact connector 46 Filler 47 Compensating lead wire 47a Joint point 48 Compensating lead wire 49 DC electric furnace 50 Lifting device 51 Electrode 52 Molten steel 53 Argon (nitrogen or carbon dioxide)
Claims (3)
保護棒内に縦方向に深さを変えて複数個内蔵したことを
特徴とする溶融金属等の連続測温装置。1. A continuous temperature measuring device for a molten metal or the like, wherein a plurality of thermocouples are built in a protection rod made of a refractory material having a good thermal conductivity, the depth of which is changed in the vertical direction.
し前記熱電対に接続する多接点コネクターを上部に備え
た保持部材を有し、前記多接点コネクターと対となる多
接点コネクターを昇降部材の下部に取付け、前記保護棒
及び保持部材のそれぞれが着脱可能とした請求項１記載
の溶融金属等の連続測温装置。2. A multi-contact connector, which is a pair with the multi-contact connector, having a holding member having an upper part of a multi-contact connector that supports the upper part of a protection rod having a built-in thermocouple and is connected to the thermocouple. The continuous temperature measuring device for molten metal or the like according to claim 1, wherein the continuous rod temperature measuring device is attached to a lower portion of the elevating member, and each of the protection rod and the holding member is detachable.
却する冷気導入孔が設けられた請求項１または２記載の
溶融金属等の連続測温装置。3. The continuous temperature measuring device for molten metal or the like according to claim 1, wherein a cold air introduction hole for cooling the inside of the holding member above the protection rod is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35916091A JPH05180701A (en) | 1991-12-26 | 1991-12-26 | Device for continuously measuring temperature of molten metal, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35916091A JPH05180701A (en) | 1991-12-26 | 1991-12-26 | Device for continuously measuring temperature of molten metal, etc. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05180701A true JPH05180701A (en) | 1993-07-23 |
Family
ID=18463058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35916091A Pending JPH05180701A (en) | 1991-12-26 | 1991-12-26 | Device for continuously measuring temperature of molten metal, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05180701A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08136352A (en) * | 1994-11-08 | 1996-05-31 | Tokyo Yogyo Co Ltd | Continuous immersion type thermometer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3099327B2 (en) * | 1989-05-15 | 2000-10-16 | 日本電気株式会社 | Phase measurement circuit |
-
1991
- 1991-12-26 JP JP35916091A patent/JPH05180701A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3099327B2 (en) * | 1989-05-15 | 2000-10-16 | 日本電気株式会社 | Phase measurement circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08136352A (en) * | 1994-11-08 | 1996-05-31 | Tokyo Yogyo Co Ltd | Continuous immersion type thermometer |
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