JPS6325043B2 - - Google Patents
Info
- Publication number
- JPS6325043B2 JPS6325043B2 JP58173705A JP17370583A JPS6325043B2 JP S6325043 B2 JPS6325043 B2 JP S6325043B2 JP 58173705 A JP58173705 A JP 58173705A JP 17370583 A JP17370583 A JP 17370583A JP S6325043 B2 JPS6325043 B2 JP S6325043B2
- Authority
- JP
- Japan
- Prior art keywords
- sonde
- furnace
- vertical
- fixed
- thermocouple
- 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
- 238000000034 method Methods 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 238000000691 measurement method Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 7
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 239000002801 charged material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、高炉炉内状況を精度良く測定できる
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for accurately measuring the internal condition of a blast furnace.
（従来技術とその問題点）
現在採用されている高炉炉内状況の測定法とし
ては、大別して水平ゾンデによる方法と垂直
ゾンデによる方法の２方法が一般的である。(Prior Art and its Problems) There are two general methods for measuring the internal condition of a blast furnace currently employed: a method using a horizontal sonde and a method using a vertical sonde.
そして、前者の水平ゾンデによる方法は、更に
○イ高炉シヤフト上段の側壁から水冷したゾンデを
炉内に対して水平に押し込み、必要の都度（２〜
３回／日）随時ゾンデを炉内に挿入して炉内状況
を測定するものと、○ロ炉内にゾンデを常設して常
時炉内状況を測定するものの２つの方法がある。
しかし、前者（○イの方法）のものは測定頻度が少
ない為、採取データの代表性が乏しく、又後者
（○ロの方法）のものは測定データの代表性はある
が、炉内に片持ちの状態でゾンデを設置する為、
ゾンデの設備的寿命が短かく、又保守性も悪い等
の問題点がある。更にどちらの場合にも、ゾンデ
を水平に設置する為、上から装入物の荷重が作用
し、それに耐える強度にするためには、ゾンデを
大型のものにしかつ水冷構造のものにするのが通
例であり、故に、このゾンデ冷却の影響をうけ
て、測定した温度データが低くなる等の問題点、
更にこのような水平ゾンデでは炉内ストツクライ
ン近傍のデータしか採取できない為、炉下部の状
況についてはモデルシミユレーシヨンによる推定
しかなく、炉内高さ方向の反応の進行状態を正確
に知ることができない等の問題点があつた。 In the former method using a horizontal sonde, a water-cooled sonde is pushed horizontally into the furnace from the side wall of the upper stage of the blast furnace shaft.
There are two methods: one is to insert a sonde into the furnace at any time (3 times/day) to measure the situation inside the furnace, and the other is to permanently install a sonde inside the furnace and constantly measure the situation inside the furnace.
However, the former (Method ○B) has less representative measurement data because the measurement frequency is low, and the latter (Method ○B) has representativeness of the measured data, but In order to set up the sonde while holding it,
There are problems such as a short equipment life of the sonde and poor maintainability. Furthermore, in both cases, since the sonde is installed horizontally, the load of the charge acts on it from above, and in order to have the strength to withstand it, it is necessary to make the sonde large and have a water-cooled structure. This is normal, and therefore, there are problems such as the measured temperature data becoming low due to the influence of sonde cooling.
Furthermore, since such horizontal sondes can only collect data near the stock line inside the reactor, the situation in the lower part of the reactor can only be estimated by model simulation, and it is difficult to accurately know the progress of the reaction in the height direction inside the reactor. There were problems such as not being able to
このような欠点を補う目的で、後者の垂直ゾン
デによる方法が提案された。すなわち、熱電対を
内蔵した高融点金属管と、その金属管の先端に取
付けられかつ複数の通孔および上記熱電対の測温
部を設けた高融点金属製の重錘とを有するゾンデ
を、炉頂より装入して重錘を炉内装入物上に置
き、装入物の荷下りに伴なつてゾンデを炉内に順
次繰り込み、炉内の高さ方向の温度、ガス組成、
圧力分布等を測定する方法である。（特公昭47―
43721号、特開昭55―73807号、特開昭49―123407
号参照）
しかし、この垂直ゾンデによる方法も、鉱石等
が軟化融着する1350℃程度の温度まで耐久性がな
く（特開昭49―123407号）、またゾンデがかなり
フレキシブルとなるため重錘が炉内装入後どこに
行くかわからず、またデータの信頼性が低い（特
開昭55―73807号）等の問題がある。 In order to compensate for these drawbacks, the latter method using a vertical sonde was proposed. That is, a sonde having a high melting point metal tube with a built-in thermocouple, and a high melting point metal weight attached to the tip of the metal tube and provided with a plurality of through holes and a temperature measuring part of the thermocouple, Charge from the top of the furnace, place a weight on top of the charges in the furnace, and as the charges are unloaded, the sonde is moved into the furnace one by one to measure the temperature in the height direction inside the furnace, the gas composition,
This is a method of measuring pressure distribution, etc. (Tokuko Showa 47-
No. 43721, JP-A-55-73807, JP-A-49-123407
However, this method using a vertical sonde is not durable up to temperatures of around 1350°C, at which ores soften and fuse (Japanese Patent Application Laid-open No. 123407/1972), and since the sonde is quite flexible, it is difficult to carry a weight. There are problems such as not knowing where it will go after it enters the reactor, and the reliability of the data being low (Japanese Patent Application Laid-open No. 73807/1983).
そこで、本出願人は、上記問題を解決するた
め、フレキシブルなゾンデに一定の張力を与えて
炉内に繰り出す方法を、特開昭57―152405号で開
示した。これによりフレキシブルなゾンデがシヤ
フト上部で鉛直に炉内に送られるようになつたの
であるが、このゾンデは消耗型である為、頻度多
く計測する事ができず、よつて炉内現象の解明に
は有効であるが、炉況管理には有効に使用できな
いという問題を内在している。 In order to solve the above-mentioned problem, the present applicant disclosed in Japanese Patent Application Laid-open No. 152405/1983 a method of applying a certain tension to a flexible sonde and feeding it into a furnace. This made it possible for a flexible sonde to be sent vertically into the furnace at the top of the shaft, but since this sonde was a consumable type, it was not possible to take frequent measurements, and it was therefore difficult to elucidate the phenomena inside the furnace. Although effective, it has the inherent problem that it cannot be used effectively for furnace condition management.
（発明の目的）
本発明は、上記したような水平ゾンデや垂直ゾ
ンデおよび消耗型垂直ゾンデを用いた炉内状況測
定法にあつた欠点を解消し、計測データに信頼性
があり炉況制御に使用可能な精確なデータを提供
できる高炉炉内状況の測定方法を提供せんとする
ものである。(Objective of the Invention) The present invention solves the drawbacks of the above-mentioned method for measuring the condition inside the reactor using horizontal sondes, vertical sondes, and expendable vertical sondes, and provides reliable measurement data that can be used to control the condition of the reactor. The objective is to provide a method for measuring conditions inside a blast furnace that can provide usable and accurate data.
（発明の構成）
本発明は、先端にガスサンプリング孔および熱
電対が設けられた固定ゾンデと、熱電対を内蔵し
たフレキシブルな高融点金属管と該金属管の先端
に取付けられその外周に複数の通孔と上記熱電対
の測温部を夫々設けてなる検出錘を備えてなる消
耗型垂直ゾンデを用い、上記固定ゾンデを層頂部
装入物内にて半径方向に複数点、ストツクライン
上から鉛直に設置し、常時はこの固定ゾンデによ
り炉内の温度およびガス組成を測定し、操業変更
時や炉況不調時には上記固定ゾンデと同じ半径方
向位置にある上記消耗型垂直ゾンデを装入物の荷
下りに伴なつて繰り出し、炉内高さ方向の温度、
ガス組成、圧力分布を測定し炉況変化の原因を解
明することを要旨とする高炉炉内状況の測定方法
である。(Structure of the Invention) The present invention comprises a fixed sonde having a gas sampling hole and a thermocouple at its tip, a flexible high melting point metal tube with a built-in thermocouple, and a plurality of tubes attached to the tip of the metal tube and arranged around its outer periphery. Using an expendable vertical sonde equipped with a detection weight each having a through hole and a temperature measurement part of the thermocouple, the fixed sonde was placed at multiple points in the radial direction within the bed top charge from above the stock line. This fixed sonde is installed vertically, and the temperature and gas composition inside the furnace are always measured. When the operation is changed or the furnace condition is poor, the above-mentioned expendable vertical sonde, which is located at the same radial position as the above-mentioned fixed sonde, is used to measure the temperature and gas composition inside the furnace. As the load is unloaded, the temperature in the height direction inside the furnace,
This is a method of measuring the internal conditions of a blast furnace, which aims to determine the causes of changes in furnace conditions by measuring gas composition and pressure distribution.
（実施例）
以下本発明を添付図面に示す一実施例に基づい
て説明する。(Example) The present invention will be described below based on an example shown in the accompanying drawings.
図面において、１は固定ゾンデであり、該固定
ゾンデ１は炉内装入時の摩耗に耐えるように例え
ばその表面がセラミツク溶射され、かつその先端
にガスサンプリング孔２および温度測定用の例え
ばシース熱電対３が設置された公知の構造のもの
である。また４は、フレキシブルな高融点金属管
５と該金属管５の先端に取付けられた検出錘６を
有する消耗型垂直ゾンデであり、上記高融点金属
管５内には熱電対７が設けられていると共に、そ
の中を高炉内のガスが通過できるように成されて
いる。 In the drawing, reference numeral 1 denotes a fixed sonde, and the surface of the fixed sonde 1 is sprayed with ceramic, for example, to withstand wear during insertion into the furnace, and has a gas sampling hole 2 and a sheathed thermocouple, for example, for temperature measurement at its tip. 3 is of a known structure. Further, 4 is a consumable vertical sonde having a flexible high melting point metal tube 5 and a detection weight 6 attached to the tip of the metal tube 5, and a thermocouple 7 is provided in the high melting point metal tube 5. It is designed so that the gas inside the blast furnace can pass through it.
上記検出錘６は、上記金属管５と同様に高融点
金属で製造され、又その外周には複数の通孔８が
設けられていると共にその内部には上記熱電対７
の測温部が埋設されている。 The detection weight 6 is made of a high melting point metal like the metal tube 5, and has a plurality of through holes 8 on its outer periphery, and has the thermocouple 7 inside it.
A temperature measuring section is buried.
９は上記消耗型垂直ゾンデ４を高炉装入物ｍの
荷下りに応じて降下させるためのゾンデ駆動機構
であり、該ゾンデ駆動機構９は矯正用ローラ１
０、ゾンデドラム１１、繰り出し長さ測定器等を
具備し、ゾンデドラム１１から送り出された垂直
ゾンデ４は繰り出し長さ測定器を通過し、矯正用
ローラ１０により曲りを矯正されたあと、炉内の
ストツクライン１２上で半径方向の定位置におろ
され、かつ高炉装入物ｍの荷下りに伴ない、該垂
直ゾンデが鉛直になるのに必要な一定の張力をゾ
ンデドラム１１に内蔵された制動装置によりかけ
られて順次炉内に繰り出される公知の構造であ
る。 Reference numeral 9 denotes a sonde drive mechanism for lowering the expendable vertical sonde 4 as the blast furnace charge m is unloaded, and the sonde drive mechanism 9 is connected to the straightening roller 1.
0, a sonde drum 11, a feeding length measuring device, etc., and the vertical sonde 4 fed out from the sonde drum 11 passes through the feeding length measuring device, and after being corrected by the straightening roller 10, the vertical sonde 4 is placed in the furnace. A braking device built into the sonde drum 11 applies a constant tension necessary for the vertical sonde to become vertical when it is lowered to a fixed position in the radial direction on the Klein 12 and as the blast furnace charge m is unloaded. This is a well-known structure in which the parts are covered and sequentially fed into the furnace.
１３は上記固定ゾンデ１および消耗型垂直ゾン
デ４を高炉ａ内の径方向所定位置に案内するため
のガイド管であり、該ガイド管１３は、本実施例
の場合には、固定ゾンデ用と消耗型垂直ゾンデ用
の２本を上下２段に重ねて設けてあるものを示し
ているが、これに限るものではなく、横に２本並
べてもよいことは勿論である。 Reference numeral 13 denotes a guide tube for guiding the fixed sonde 1 and the expendable vertical sonde 4 to predetermined positions in the radial direction inside the blast furnace a. Although two vertical probes are shown stacked one on top of the other, the present invention is not limited to this, and it goes without saying that two probes may be placed side by side.
また、本実施例では上記ガイド管１３は、その
長さが長くなる炉心部および中間部のガイド管１
３を４本束ねて剛性を高すると共に、これらガイ
ド管１３の対向する側からテンシヨンロツド１４
で吊つて補強し、又大ベルｂからの落下原料のあ
たるガイド管１３部分には、例えばSKD鋼や
SKS鋼等の耐摩耗材１５を例えば簾状にして被
覆しガイド管１３の損耗を防止したものを示して
いる。 In addition, in this embodiment, the guide tube 13 is used in the core and intermediate portions where the length is longer.
3 are bundled together to increase rigidity, and the tension rods 14 are connected from opposite sides of these guide tubes 13.
For example, SKD steel or other material is used for the guide pipe 13, which is where the material falls from the large bell b.
The guide tube 13 is shown covered with a wear-resistant material 15 such as SKS steel in the form of a screen, for example, to prevent wear and tear on the guide tube 13.
更に本実施例では、上記固定ゾンデ１、消耗型
垂直ゾンデ４を高炉ａの半径方向に３点、すなわ
ち壁側、中間部、炉心部にそれらの計測端を設置
したものを示したが、これに限るものではなく多
数点設置してもよいことは勿論であり、又本実施
例では、炉心部および中間部と炉壁部の層頂ゾン
デが、夫々別の挿入口ｄから炉内に設置したもの
を示したが、挿入口ｄの大きさにより、１カ所か
ら炉内に挿入してもよい。 Furthermore, in this embodiment, the fixed sonde 1 and the expendable vertical sonde 4 are installed at three points in the radial direction of the blast furnace a, that is, at the wall side, the middle part, and the core part. It goes without saying that the structure is not limited to the above, and that multiple points may be installed, and in this embodiment, the layer top sondes in the reactor core, middle part, and reactor wall are installed into the reactor through separate insertion ports d. However, depending on the size of the insertion port d, it may be inserted into the furnace from one place.
１６は上記固定ゾンデ１のガスサンプリング孔
２に接続されたサンプリングガス管１７および、
消耗型垂直ゾンデ４の高融点金属管５の夫々の基
端に接続されたガス圧測定器、１８は同じく夫々
の基端に接続されたガス分析器、１９は夫々の熱
電対３，７に接続された温度記録計である。 16 is a sampling gas pipe 17 connected to the gas sampling hole 2 of the fixed sonde 1;
A gas pressure measuring device is connected to each base end of the refractory metal tube 5 of the consumable vertical sonde 4, 18 is a gas analyzer also connected to each base end, and 19 is a gas analyzer connected to each of the thermocouples 3 and 7. A connected temperature recorder.
なお、図中ｃは高炉ａの炉壁に設けられた挿入
口ｄの出口端に取付けられたガス遮断弁、ｅは同
じくゾンデカツタ、ｆはガス遮断弁ｃとゾンデカ
ツタｅ間に介装された検出錘６の装填部である。 In the figure, c is a gas cutoff valve installed at the outlet end of the insertion port d provided in the wall of the blast furnace a, e is also a sonde cutter, and f is a detection interposed between the gas cutoff valve c and the sonde cutter e. This is the loading section for the weight 6.
次に、上記した固定ゾンデ１および消耗型垂直
ゾンデ４等からなる層頂ゾンデを用いて炉内状況
を測定する本発明方法を説明する。 Next, a method of the present invention will be described in which the conditions inside the furnace are measured using a layer top sonde consisting of the above-described fixed sonde 1, expendable vertical sonde 4, and the like.
高炉ａの層頂部における装入物ｍ内において、
半径方向に複数点（本実施例では３点）固定ゾン
デ１を設置する。この固定ゾンデ１の設置は、高
炉休風時にストツクライン１２を固定ゾンデ１設
置先端位置の下位まで減尺した後、固定ゾンデ１
をガイド管１３を通して炉内に挿入すれば、固定
ゾンデ１は自重により鉛直となり、しかる後原料
を炉内に装填すれば固定ゾンデ１は装入物内に補
捉され設置される。 In the charge m at the top of the bed of the blast furnace a,
Fixed sondes 1 are installed at multiple points (three points in this example) in the radial direction. The installation of the fixed sonde 1 is carried out after reducing the stock line 12 to a position below the installation tip position of the fixed sonde 1 during the blast furnace air shutdown.
When inserted into the furnace through the guide tube 13, the fixed sonde 1 becomes vertical due to its own weight, and after that, when the raw material is loaded into the furnace, the fixed sonde 1 is captured and installed in the charge.
このように半径方向に複数点設置した固定ゾン
デ１により、操業時は常時、炉内の温度、ガス組
成を装入物ｍ上部で測定し、炉内温度分布および
反応進行状況の変化を監視する。また、あわせて
その径方向位置での鉄鉱石類の軟化融着帯の炉内
での高さをシミユレーシヨンモデルにより推定す
ることも行なわれる。なお、通常操業時は装入原
料のレベルは所定のストツクライン位置の範囲に
維持される為、固定ゾンデ１の先端が装入原料の
表面に出ることはない。 During operation, the fixed probes 1 installed at multiple points in the radial direction measure the temperature and gas composition inside the furnace at the top of the charge m, and monitor changes in the temperature distribution inside the furnace and the progress of the reaction. . Additionally, the height of the softened cohesive zone of the iron ore at that radial position in the furnace is also estimated using a simulation model. Note that during normal operation, the level of the charged material is maintained within a predetermined stock line position range, so the tip of the fixed sonde 1 does not come out onto the surface of the charged material.
上記固定ゾンデ１による軟化融着帯の推定位置
が予め予定した範囲からはずれる場合や、操業変
更時あるいは炉況不調時等には、上記固定ゾンデ
１と同じ半径方向位置に消耗型垂直ゾンデ４を操
り出し、炉内高さ方向の温度、ガス組成分布を測
定して操業変更の効果や炉況不調の原因を確認す
る。 When the estimated position of the softened cohesive zone by the fixed sonde 1 deviates from the predetermined range, or when the operation is changed or the furnace condition is poor, the expendable vertical sonde 4 is installed at the same radial position as the fixed sonde 1. The temperature and gas composition distribution in the height direction inside the furnace are measured to confirm the effects of operational changes and the cause of furnace malfunctions.
そして、消耗型垂直ゾンデ４により得られた計
測データと、固定ゾンデ１による炉内状況推定結
果を比較し、両者が一致しない場合には、固定ゾ
ンデ１の計測データを利用した炉内状況推定モデ
ル中の炉内ガスと装入物ｍの熱交換係数や反応速
度定数を消耗型垂直ゾンデ４により計測したもの
に修正する。 Then, the measurement data obtained by the expendable vertical sonde 4 and the estimation result of the reactor situation by the fixed sonde 1 are compared, and if the two do not match, a model is created to estimate the reactor situation using the measurement data of the fixed sonde 1. The heat exchange coefficient and reaction rate constant between the gas in the furnace and the charge m are corrected to those measured by the expendable vertical probe 4.
（具体例）
第３図に本発明に係る層頂ゾンデを使用して炉
内温度、CO2、COおよび炉内圧力について２回
にわたつて測定した結果を示す。図中、…〇…、
―●―は炉内温度を、…△…、―▲―はCO2を、…□
…、―■―はCOを、また…〓…、―〓―は炉内圧
力を夫々表わし、また実線は第１回目を、破線は
第２回目を示す。(Specific Example) FIG. 3 shows the results of two measurements of furnace temperature, CO 2 , CO, and furnace pressure using the bed top sonde according to the present invention. In the diagram...〇...,
―●― indicates the temperature inside the furnace, …△…, ―▲― indicates the CO 2 , …□
..., -■- represent CO, and ...〓..., -〓- represent the pressure inside the furnace, respectively, and the solid line shows the first time, and the broken line shows the second time.
第３図より明らかなように、送風条件（送風
量、送風温度、送風圧力、送風湿分、液燃比）、
原料条件（コークス中水分、焼結比等）がほぼ等
しい２日間での測定の再現性は非常に良好であ
り、十分な精度で測定できていることがわかる。 As is clear from Figure 3, the air blowing conditions (air flow rate, air temperature, air pressure, air humidity, liquid-fuel ratio),
It can be seen that the reproducibility of the measurement over two days when the raw material conditions (moisture in coke, sintering ratio, etc.) were almost the same was very good, and that the measurement was performed with sufficient accuracy.
（発明の効果）
以上述べた如く本発明によれば、従来の固定ゾ
ンデのみによるものよりも正確に炉内温度、炉内
ガス圧力、炉内ガス組成等を測定することが出
来、炉況制御に大なる効果を有する。(Effects of the Invention) As described above, according to the present invention, it is possible to measure the furnace temperature, furnace gas pressure, furnace gas composition, etc. more accurately than by conventional fixed sondes, and to control the furnace condition. It has a great effect on
第１図は本発明方法に使用する層頂ゾンデの概
略構成図、第２図は同じく拡大説明図、第３図は
本発明方法により測定した炉内温度、CO2、CO
および炉内圧力を示すグラフである。
１は固定ゾンデ、２はガスサンプリング孔、３
は熱電体、４は消耗型垂直ゾンデ、５は高融点金
属管、６は検出錘、７は熱電対、８は通孔、１２
はストツクライン。
Fig. 1 is a schematic configuration diagram of the layer top sonde used in the method of the present invention, Fig. 2 is an enlarged explanatory diagram of the same, and Fig. 3 is the temperature inside the furnace, CO 2 , CO 2 measured by the method of the present invention.
and a graph showing the furnace pressure. 1 is a fixed sonde, 2 is a gas sampling hole, 3 is a
is a thermoelectric body, 4 is a consumable vertical sonde, 5 is a high melting point metal tube, 6 is a detection weight, 7 is a thermocouple, 8 is a through hole, 12
is a stock line.
Claims (1)
けられた固定ゾンデと、熱電対を内蔵したフレキ
シブルな高融点金属管と該金属管の先端に取付け
られその外周に複数の通孔と上記熱電対の測温部
を夫々設けてなる検出錘を備えた消耗型垂直ゾン
デとを用いた炉内計測法において、上記固定ゾン
デを層頂部装入物内にて半径方向に複数点、スト
ツクライン上から鉛直に設置し、あわせて同心半
径方向位置に上記消耗型垂直ゾンデを設置し、常
時は上記固定ゾンデにより炉内の温度およびガス
組成を測定して炉内状況を推定し、操業変更時や
炉況不調時等には 上記消耗型垂直ゾンデを装入
物の荷下りに伴つて繰り出して炉内状況変化を測
定すると共に、該消耗型垂直ゾンデで測定したデ
ーターから炉内の伝熱・反応速度等の変化を推定
し、上記固定ゾンデデーターを用いた炉内状況推
定モデルのパラメーターを修正することにより高
精度の炉内状況推定を可能とした高炉炉内状況の
測定方法。1. A fixed sonde with a gas sampling hole and a thermocouple at its tip, a flexible high-melting point metal tube with a built-in thermocouple, and a plurality of through holes attached to the tip of the metal tube and a measuring tube for the thermocouple. In the in-furnace measurement method using a consumable vertical sonde equipped with a detection weight each having a hot section, the fixed sonde is placed at multiple points in the radial direction within the charge at the top of the layer, vertically from above the stock line. At the same time, the above-mentioned expendable vertical sonde is installed at a concentric radial position, and the above-mentioned fixed sonde measures the temperature and gas composition inside the furnace to estimate the inside situation. At times, the above-mentioned expendable vertical sonde is taken out as the charge is unloaded to measure changes in the conditions inside the furnace, and the data measured by the expendable vertical sonde is used to determine the heat transfer, reaction rate, etc. in the furnace. A method for measuring conditions inside a blast furnace that enables highly accurate estimation of conditions inside the furnace by estimating changes and modifying parameters of a model for estimating conditions inside the furnace using the above-mentioned fixed sonde data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17370583A JPS6067604A (en) | 1983-09-19 | 1983-09-19 | Measurement of interior condition of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17370583A JPS6067604A (en) | 1983-09-19 | 1983-09-19 | Measurement of interior condition of blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6067604A JPS6067604A (en) | 1985-04-18 |
| JPS6325043B2 true JPS6325043B2 (en) | 1988-05-24 |
Family
ID=15965597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17370583A Granted JPS6067604A (en) | 1983-09-19 | 1983-09-19 | Measurement of interior condition of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0513251U (en) * | 1991-08-06 | 1993-02-23 | アラコ株式会社 | Headrest support structure for vehicle seats |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2572096B1 (en) * | 1984-10-19 | 1987-02-13 | Usinor | METHOD AND INSTALLATION FOR THE CONTINUOUS MONITORING OF BLAST FURNACES |
| CN102816879B (en) * | 2012-08-03 | 2013-10-02 | 燕山大学 | Burden distribution method for bucket string-type bell-free blast furnace |
| US12043713B2 (en) * | 2018-07-31 | 2024-07-23 | W.L. Gore & Associates, Inc. | Polyethylene film |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57152405A (en) * | 1981-03-13 | 1982-09-20 | Sumitomo Metal Ind Ltd | Method and device for measuring level and shape of melt zone of blast furnace |
-
1983
- 1983-09-19 JP JP17370583A patent/JPS6067604A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57152405A (en) * | 1981-03-13 | 1982-09-20 | Sumitomo Metal Ind Ltd | Method and device for measuring level and shape of melt zone of blast furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0513251U (en) * | 1991-08-06 | 1993-02-23 | アラコ株式会社 | Headrest support structure for vehicle seats |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6067604A (en) | 1985-04-18 |
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