JPS5862519A - Detecting method for charging level of fusing material in cupola - Google Patents
Detecting method for charging level of fusing material in cupolaInfo
- Publication number
- JPS5862519A JPS5862519A JP16094281A JP16094281A JPS5862519A JP S5862519 A JPS5862519 A JP S5862519A JP 16094281 A JP16094281 A JP 16094281A JP 16094281 A JP16094281 A JP 16094281A JP S5862519 A JPS5862519 A JP S5862519A
- Authority
- JP
- Japan
- Prior art keywords
- cupola
- charging level
- electrodes
- fusing material
- level
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
- G01F23/241—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid for discrete levels
- G01F23/242—Mounting arrangements for electrodes
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、キュポラ内の溶解材料の装：６゛入レベルを
安全かつ簡便に精度良く検出する方法に関する亀のであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for safely, simply and accurately detecting the level of molten material in a cupola.
キュポラの操業におｉでは、新鋭１．故銑、鋼屑、コー
クス、石灰石、フェロシリコン等から成±溶解、材料０
装入ｌ／ ′）Ｌｐを一定一保つこ！−は・安定し九操
業をする上から重要なことであるＫもかかわらず、一般
には、装入口から見られる炎の具合等から装入レベルを
推定し℃いる程度で、正確なレベルを把握しながら操業
する場合は少なかのが現状である。In cupola operation, we have the latest 1. Made from waste pig iron, steel scrap, coke, limestone, ferrosilicon, etc., no materials used.
Keep the charging l/') Lp constant! Although this is important for stable operation, in general, the charging level can only be estimated from the condition of the flame seen from the charging port, and the accurate level can be ascertained. Currently, there are only a few cases where the plant is operated while
また、安定操業の面に限らず、キュポラ操業の自動化、
４１ＩＫ溶解材料の装入の自動化を計る丸めに鯰、常に
溶解材料のレベルを正確に検出して把握する。必要があ
る。In addition to ensuring stable operations, we also aim to automate cupola operations,
41IK Automates the charging of molten materials by accurately detecting and understanding the level of molten materials at all times. There is a need.
従来は、前述のように、殆んどのキュポラでは溶解材料
の装入レベルは目視によるのが一般的であるが、一部の
キュポラでは以下のような方法によって装入レベルの測
定が行われている。Conventionally, as mentioned above, in most cupolas the charging level of melted material is generally measured visually, but in some cupolas the charging level is measured by the following method. There is.
（１） 炉内圧を、測定する方法
第１図（４）Ｋその方法の概略を示す、これは炉内圧が
装入レベルの変化に応じて変わることを利用した方法で
あり、第１図■において、ＩＦｉキエポラ、２は溶解材
料、３＃′ｉ内径５ｍｍ程度の鋼管、＜Ｆｉｔｙ字管、
ＳＦｉ水銀あるいは水である。 、
（２）ｒ線を使用する方法
第１図＠にその方法の概略を示す。第１図＠にお−で、
１はキュポラ、２は溶解材料、５はコバルト６０等のｒ
線源、４は／翫ロゲンガイガーミュラー管やシ／チレー
シ１ン計数管等の検出器、５Ｆｉ電子回路部である。こ
の方法は、装入レベルがγ線源３のレベルよ委高い場合
ＫＦｉ検出器４へ到達するｒＷＩＩｄ少ないが、装入レ
ベルがγ線源５よ勤低下するとｒ線の透過率が高くなる
ことを利用し九４のである。(1) Method for measuring the furnace internal pressure Figure 1 (4)K shows an outline of the method. In, IFi Kiepora, 2 is melted material, 3#'i steel pipe with inner diameter of about 5 mm, <Fity-shaped pipe,
SFi is mercury or water. , (2) Method using r-rays Figure 1 @ shows an outline of this method. Figure 1 @
1 is cupola, 2 is melting material, 5 is r of cobalt 60 etc.
A radiation source, 4 a detector such as a Geiger-Müller tube and a 1-in counter, and a 5Fi electronic circuit section. In this method, when the charging level is higher than that of the gamma-ray source 3, less rWIId reaches the KFi detector 4, but when the charging level is lower than that of the gamma-ray source 5, the transmittance of r-rays increases. This is 94 using .
しかし、上記（１）の方法は、送風量轡の送風条件の変
化、あるいは溶解材料の形状等によって４炉内圧が変化
する丸め、非常に誤差が大きいという問題がある。まえ
上記（２）の方法は、ｒ線源の取扱いが非常に面倒であ
るという問題があり、あｔｂ実用化されていない。However, the above method (1) has the problem that the four-furnace internal pressure changes due to changes in the air flow rate, the shape of the melted material, etc., and a very large error. The above method (2) has a problem in that the handling of the r-ray source is extremely troublesome, and has not been put into practical use.
以上のように、従来は、安全かつ簡便に良精縦でキュポ
ラ内の溶解材料の装入レベルを検出することは困難であ
った。１：
本発明者尋は、この難点を克服することを目的として検
討の結果、電気回路を利用することによ）、キュポラ内
の溶解材料の装入レベルが所定位置より上にあるか下に
あるかを検出すれば、上記目的が達成し得るとの知見を
得、本発明に到達したものである。As described above, conventionally, it has been difficult to safely, simply, accurately and accurately detect the charging level of melted material in a cupola. 1: With the aim of overcoming this difficulty, the present inventor, Hiromu, as a result of studies, found that by using an electric circuit), the charging level of melted material in the cupola is above or below a predetermined position. The present invention was achieved based on the knowledge that the above object can be achieved by detecting whether or not the presence of a substance exists.
すなわち本発明は、溶解材料の所定装入レベル位置に和
尚するキュポラ周方向の炉壁を貫通して電極を対設し、
該電極間に前記溶解材料の介在有無による電気導通状態
を検出することにより前記溶解材料の装入レベルを推定
することを４１）做とするキュポラの溶解材料装入レベ
ルの検出方法に関するものである。That is, in the present invention, electrodes are provided oppositely through the furnace wall in the circumferential direction of the cupola at a predetermined charging level position of the melted material,
The present invention relates to a method for detecting the charging level of molten material in a cupola, which comprises estimating the charging level of the molten material by detecting the electrical conduction state depending on the presence or absence of the molten material between the electrodes. .
以下、添付図面等を参照して本発明方法を詳細に説明す
る。Hereinafter, the method of the present invention will be explained in detail with reference to the accompanying drawings and the like.
第２図は本発明方法を適用するキュポラの一態様を説明
するための概略図である。FIG. 2 is a schematic diagram for explaining one embodiment of a cupola to which the method of the present invention is applied.
！１Ｅ２図にお−て、１はキュボ２の鉄皮、２Ｆｉ耐火
材（ライニング）、５は絶縁体、４ｔｉ導電体（電極）
、５は、導線、６は電源、７は抵抗、・は電流検出器で
ある。! In the 1E2 diagram, 1 is the iron skin of Cubo 2, 2Fi refractory material (lining), 5 is the insulator, and 4ti conductor (electrode).
, 5 is a conductor, 6 is a power supply, 7 is a resistor, and . is a current detector.
第３図■、＠は第２図に示すキュポ２の実操業時の一状
態を模式的に示す概略図である。FIG. 3 (■) and @ are schematic diagrams schematically showing one state of the cupo 2 shown in FIG. 2 during actual operation.
第３図（４）は、溶解材料ＭＯ装入レベルが電極４の位
置より上にある場合の状態を示すもので、電極４．４間
を溶解材料Ｍが満たしている。FIG. 3 (4) shows a state in which the charging level of the molten material MO is above the position of the electrodes 4, and the molten material M fills the space between the electrodes 4.4.
この溶解材料Ｍ＃ｉ、殆んどが銑鉄、故銑、鋼屑、コー
クスおよびフェロシリコンであり、これらはいずれも導
電体であるから、第５図（４）の状態では電気的な回路
が閉じたことＫな゛す、回路に電流が流れ、これを電気
検出器８で知ることができる。This melted material M#i is mostly pig iron, waste pig iron, steel scrap, coke, and ferrosilicon, and since these are all conductors, there is no electrical circuit in the state shown in Figure 5 (4). Since the circuit is closed, current flows through the circuit, and this can be detected by the electric detector 8.
第５図…）は、溶解材料Ｍの装入レベルが電極４の位置
より下に８ゐ場合の状態を示すもので、電極４．４間Ｋ
Ｆｉ上記の導電体であゐ溶解材料Ｍが存在しない。従っ
て、第５図（９）の状態では、電気的回路が連断された
しとＫなり１回路に電流が流れなくな・る。Figure 5...) shows the state when the charging level of the molten material M is 8 degrees below the position of the electrode 4, and the distance between the electrodes 4 and 4 is K.
In the above-mentioned conductor, there is no dissolved material M. Therefore, in the state shown in FIG. 5(9), the electrical circuit becomes disconnected and no current flows through one circuit.
このように、回路を流れる電流の有無によって、溶解材
料Ｍのレベルが電極４より上にあるか下にあるかを知る
と七ができる。In this way, depending on the presence or absence of current flowing through the circuit, it can be determined whether the level of the dissolved material M is above or below the electrode 4.
電極４ｔｊ％溶解材料輩のレベルをコントロールしよう
とする位置に対向して設置することは言う壕でも愈く、
また第２，３図では１組（１対）しか示してｉ′ｌｋい
が、キュポラの馬方向に２組以上設置することもでき、
２組以上設置すれば電気的な誤報がなくな抄、より正確
な検出を行うことができる。更に、このよう門型極対を
キュポラの上下方向に適宜間隔を置−て複数組設置すれ
ば、溶解材料Ｍの装入レベルをよシ高精変Ｋかつよ抄正
確に把握することができる。It is convenient to install the electrode 4tj% opposite the position where you want to control the level of dissolved material.
Also, although only one set (one pair) is shown in Figures 2 and 3, two or more sets can be installed in the direction of the cupola horses.
If two or more sets are installed, electrical false alarms will be eliminated and more accurate detection can be performed. Furthermore, by installing a plurality of such gate-shaped pole pairs at appropriate intervals in the vertical direction of the cupola, it is possible to accurately grasp the charging level of the melted material M. .
なお、回路を流れる電流は、数＜ １３アンペアで充分
であ如、電流は交流で４直流で４よい。It should be noted that it is sufficient that the current flowing through the circuit is less than 13 amperes; the current should be AC, 4 DC, or 4.
以上詳述したように本発明方法によれば、回路を流れる
電流の有無により、溶解材料Ｍのレベルがコントロール
しようとする位置（すなわち電極４の設置位置）より上
にあるか下にあるかを□容易に知ることができ、溶解材
料輩のレベルが低下すれば（すなわち回路に電流が流れ
なくなれば）次の溶解材料を装入し、溶解材料の装入レ
ベルを一定位置に保持することができ、キュポラの安定
操業およびキュポラ操業の自動化上極めて有益である。As detailed above, according to the method of the present invention, it is possible to determine whether the level of the melted material M is above or below the position to be controlled (i.e., the installation position of the electrode 4) depending on the presence or absence of current flowing through the circuit. □Easy to know, if the level of molten material drops (i.e. no current flows through the circuit), the next molten material can be charged and the molten material charge level can be maintained at a constant position. This is extremely useful for stable cupola operation and automation of cupola operation.
＠１図（１）、（９）は従来のキュギラ内溶解材料装入
しベ羨の検出方法を説明するための図、第２図は本発明
方法を適用するキュポラの一態様を説明するための図、
第５図（Ａ）、（Ｂ）Ｆｉ第２図に示すキュポラの実操
業時の一状態を模式的に示す図である。
復代理人 内 １） 明
復代理人 萩 原 亮 −
１１□
弔１図（８）
馬２図
馬３図（Ａ）@1 Figures (1) and (9) are diagrams for explaining the conventional method for charging melted material in the cupola and detecting the leakage, and Figure 2 is for explaining one aspect of the cupola to which the method of the present invention is applied. diagram,
FIGS. 5A and 5B are diagrams schematically showing one state of the cupola shown in FIG. 2 during actual operation. Sub-agents 1) Meikoku agent Ryo Hagiwara - 11□ Condolence figure 1 (8) Horse 2 figure Horse 3 figure (A)
Claims (1)
向の炉壁を貫通して電極を対設、、シ、該電極間に前記
溶解材料の介在有無による電気導通状態を検出すること
により前記溶解材料の装入レベルを推定することを特徴
とするキュポラの溶解材料装入レベルの検出方法。Electrodes are provided oppositely through the furnace wall in the circumferential direction of the cupola corresponding to a predetermined charging level position of the melting material, and the melting is performed by detecting the state of electrical conduction depending on the presence or absence of the melting material between the electrodes. A method for detecting a charging level of melted material in a cupola, comprising estimating a charging level of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16094281A JPS5862519A (en) | 1981-10-12 | 1981-10-12 | Detecting method for charging level of fusing material in cupola |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16094281A JPS5862519A (en) | 1981-10-12 | 1981-10-12 | Detecting method for charging level of fusing material in cupola |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5862519A true JPS5862519A (en) | 1983-04-14 |
Family
ID=15725547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16094281A Pending JPS5862519A (en) | 1981-10-12 | 1981-10-12 | Detecting method for charging level of fusing material in cupola |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5862519A (en) |
-
1981
- 1981-10-12 JP JP16094281A patent/JPS5862519A/en active Pending
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