JPS60209184A - Measuring instrument for descendent speed of charge in blast furnace - Google Patents
Measuring instrument for descendent speed of charge in blast furnaceInfo
- Publication number
- JPS60209184A JPS60209184A JP6446984A JP6446984A JPS60209184A JP S60209184 A JPS60209184 A JP S60209184A JP 6446984 A JP6446984 A JP 6446984A JP 6446984 A JP6446984 A JP 6446984A JP S60209184 A JPS60209184 A JP S60209184A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- detectors
- charge
- speed
- pressure drop
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/18—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Blast Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、高炉内装入物の降下速度計測装置シニ関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for measuring the rate of descent of blast furnace contents.
高炉内装入原料の降下情報（例えば降下速度。Information on the descent of the raw material input into the blast furnace (for example, the rate of descent).
降下速度の変動および降下速度の分布等）は。(variation of descent speed, distribution of descent speed, etc.).
炉内反応状況を把握し、ｆロセス制御系の送風量、燃料
比、原料性状、装入物分布等を制御するために重要な情
報の１つとされている。It is considered to be one of the important pieces of information for understanding the reaction situation in the furnace and controlling the air flow rate, fuel ratio, raw material properties, charge distribution, etc. of the f-process control system.
従来、かかる降下情報のうち高炉内装入物原料の降下速
度は、サウジング装置から分銅付き鎖を吊下させて装入
原料のレベル値を計測し。Conventionally, among such descending information, the descending speed of the raw material charged in the blast furnace was obtained by suspending a chain with a weight from a sounding device and measuring the level value of the charged raw material.
このレベル値の時間的変化から演算によってめていた。It was determined by calculation based on the temporal change in this level value.
しかし、この装置では次のような問題点が指摘されてい
る。その１つは、原料表面およびその近傍では、装入原
料の流れ込み現象即ち装入原料が原料面等にそって低い
方へ流動的に動く現象が生じやすく、このため装入原料
のレベル値が実曝の原料降下と関係なく変化し、これが
装入原料の降下速度計測上、誤差を大きくする原因とな
っていた。また、原料装入時にはサウンジング装置の分
銅が装入原料に埋まるため、連続計測できない不具合が
あった。However, the following problems have been pointed out with this device. One of these is that on and near the raw material surface, a flow-in phenomenon of the charged material tends to occur, that is, a phenomenon in which the charged material moves fluidly downward along the material surface, etc., and this causes the level value of the charged material to decrease. It changes regardless of the material falling during actual exposure, and this causes a large error in measuring the falling speed of the charged material. Additionally, when charging raw materials, the weight of the sounding device was buried in the charged raw materials, making continuous measurement impossible.
本発明は以上のような点にかんがみてなされたもので、
装入原料の流れ込みの影響を受けずに精度良く計測し得
る高炉内装入物の降下速度計測装置を提供することにあ
る。The present invention has been made in view of the above points.
It is an object of the present invention to provide a device for measuring the rate of descent of blast furnace contents, which can measure the rate of descent with high accuracy without being affected by the flow of charged raw materials.
以下１本発明の一実施例について図を参照して説明する
。図において１０は高炉であって。An embodiment of the present invention will be described below with reference to the drawings. In the figure, 10 is a blast furnace.
これには例えば鉱石やコークス等の原料装入物１１が装
入される。１２Ａおよび１２Ｂは電導度、透磁率１粒径
の何れか１つまたはその組合せによって原料の性状を検
出し、或いは炉内の圧力損失を検出するための上部側検
出器および下部側検出器であって、これらは原料１１の
高さ方向において原料１１中に位置を異ならせて配置さ
れている。なお、説明の便宜上、圧力損失検出用のもの
を例ｒ上げて説明する。即ち。A raw material charge 11 such as ore or coke is charged into this. 12A and 12B are an upper side detector and a lower side detector for detecting the properties of the raw material by any one of conductivity, magnetic permeability, particle size, or a combination thereof, or detecting the pressure loss in the furnace. These are arranged at different positions in the raw material 11 in the height direction of the raw material 11. For convenience of explanation, a pressure loss detection device will be described as an example. That is.
上部側圧損検出器１２Ａは原料高さ方向において比較的
上部に、下部側圧損検出器１２Ｂは原料高さ方向におい
て上部側圧損検出器ｘｚＡよシも下部側に配置される。The upper side pressure loss detector 12A is arranged at a relatively upper part in the raw material height direction, and the lower side pressure loss detector 12B is arranged at a lower part than the upper side pressure loss detector xzA in the raw material height direction.
そして、これらの検出器１ｚＡ、ｘ：ｚＢによって検出
された圧力損失は圧力損失信号発信器１３Ａ、１３Ｂに
送られ、ここで圧力損失に比例する電気信号に変換して
出力する。１４は両全信器１３Ａ、１３Ｂの両出力伯°
号から相互相関関数をめて両信号間の時間差を得る相関
関数部、１５は装入原料１１の降下速度をめる演算処理
部である。１６は還元ガスの方向を示す。The pressure loss detected by these detectors 1zA, x:zB is sent to pressure loss signal transmitters 13A, 13B, where it is converted into an electrical signal proportional to the pressure loss and output. 14 is the output count of both transmitters 13A and 13B.
A correlation function unit calculates a cross-correlation function from No. 1 and obtains the time difference between both signals, and 15 is an arithmetic processing unit that calculates the descending speed of the charged raw material 11. 16 indicates the direction of the reducing gas.
次に、以上のように構成された計測装置の作用を説明す
る。炉ｌｏ内の原料中には図示する方向に還元ガス１６
が通過しているので、圧損検出器−１２Ａ、１２Ｂの検
出端を通過する原料の形状によって圧力損失が異なる。Next, the operation of the measuring device configured as above will be explained. A reducing gas 16 is introduced into the raw material in the furnace lo in the direction shown in the figure.
, the pressure loss varies depending on the shape of the raw material passing through the detection ends of the pressure loss detectors 12A and 12B.
そこで、原料１１の高さ方向において上部と下部にそれ
ぞれ圧損検出器１２ｆｉ、、１２Ｂを配置しておけば。Therefore, if the pressure loss detectors 12fi, 12B are arranged at the upper and lower parts of the raw material 11 in the height direction, respectively.
先ず上部側圧損検出器１２Ａ（＝よって原料即ち圧力損
失の変化状態をとらえることができ、引き続き、原料１
１の降下によって下部側圧損検出器１２ｆ３により圧力
損失の変化状態をとらえることができる。First, the upper side pressure loss detector 12A (=Therefore, it is possible to detect the changing state of the raw material, that is, the pressure loss, and then the raw material 1
1, the lower side pressure loss detector 12f3 can detect changes in pressure loss.
そこで、これら両検出器１２Ａ、１２ｐ、に対応する圧
力損失信号発信器１３Ａ、１３）３により電気信号に変
換すると、例えばそれぞれ図示するような出力波形Ａ、
Ｂが得られる。これら両出力波形Ａ、Ｂ即ち出力信号は
相関関数部１４１二人力され、ここで逐次、相互相関関
数を演算し両信号間Ω時間差を得る。即ち、この相関関
数部１４は、上部側圧力損失をＰＸ（ｔ）、下部側圧力
損失をＰ、（ｔ）とすると。Therefore, when the pressure loss signal transmitters 13A, 13) 3 corresponding to these two detectors 12A, 12p are converted into electrical signals, the output waveforms A,
B is obtained. These two output waveforms A and B, that is, the output signals, are input to a correlation function section 141, where a cross-correlation function is sequentially calculated to obtain the Ω time difference between the two signals. That is, in this correlation function section 14, let the upper side pressure loss be PX(t) and the lower side pressure loss be P,(t).
なる演算によって上・下部圧力損失の相互相関φ１．を
め、この圧力損失の相互相関φ８．を最大とする両信号
間の芦間差（原料１１が両検出器１２Ａ、１２Ｂ間を通
過した時間）Δ１を得る。そして、この時間差Δｔの信
号を演算処理部１５に供給し、ここで装入原料１１の降
下速度Ｖを下式によってめる。By calculating the cross-correlation between the upper and lower pressure losses φ1. The cross-correlation of this pressure drop is φ8. The difference Δ1 between the two signals (time during which the raw material 11 passes between both the detectors 12A and 12B) is obtained. Then, the signal of this time difference Δt is supplied to the arithmetic processing section 15, where the descending speed V of the charged raw material 11 is determined by the following formula.
ｖ” ｌｈ ｉ ・・・・・・・・・・・・・・・・・
・・・・・・曲・・曲曲・曲曲曲・（２１但し、Ｌは上
部側圧損検出器１２Ａと下部側圧損検出器１２ｆ３との
距離である。以上のようｌ二して演算処理部１５でめた
降下速度Ｖは出力されて例えばアナログまたはディジタ
ル指示計に表示され、さらにはプロセス制御のためのＩ
つの降下情報として使用されるものである。v”lh i・・・・・・・・・・・・・・・・・・
・・・・・・Song・・Song・Song・（21 However, L is the distance between the upper side pressure loss detector 12A and the lower side pressure loss detector 12f3. As described above, the calculation process is The rate of descent V determined in section 15 is outputted and displayed, for example, on an analog or digital indicator, and also on an I/O for process control.
This is used as one descent information.
なお、上記実施例では装入原料１）として鉱石、コーク
スとしたが、特に原料の種類は限定されるものではない
。In the above embodiments, ore and coke were used as the charging raw material 1), but the type of raw material is not particularly limited.
従って、以上のような構成によれば、２つの検出器を装
入原料中に設置し、それぞれの検出器からの圧力損失ま
たは原料性状の相互相関から得られる雨検出器間の原料
通過時間と前記両検出器の設置距離とから降下速度をめ
るよう（ニしたので、原料の流れ込みの影響を受けずに
、しかも連続的（二降下速度を計測できるものである。Therefore, according to the above configuration, two detectors are installed in the charged raw material, and the raw material transit time between the rain detectors is obtained from the pressure loss from each detector or the cross-correlation of the raw material properties. Since the rate of descent was calculated from the installation distance of both detectors, it was possible to measure the rate of descent continuously without being affected by the inflow of raw materials.
図は本発明に係る高炉内装入物の降下速度計測装置の一
実施例を示す構成図である。
１θ・・・炉（高炉）、１１・・・装入原料、１２Ａ。
１２Ｂ・・・検出器、１３に、１３ｆ３・・・圧力損失
信号発信器、１４・・・相関関数部、１５−・・演算処
理部。The figure is a configuration diagram showing an embodiment of a descending rate measuring device for blast furnace contents according to the present invention. 1θ...Furnace (blast furnace), 11...Charging raw material, 12A. 12B...Detector, 13, 13f3...Pressure loss signal transmitter, 14...Correlation function unit, 15-...Arithmetic processing unit.
Claims (1)
された原料性状または圧力損失を検出するための複数の
検出器と、この複数の検出器の出力から前記装入物がこ
れら検出器間を通過する時間をめる手段と、この手段に
よって得られた時間と前記複数の検出器間の距離とから
前記装入物の降下速度を算出する演算処理手段とを備え
たことを特徴とする高炉内装入物の降下速度計測装置。A plurality of detectors for detecting raw material properties or pressure loss are arranged at a required distance in the height direction in the charge in the blast furnace, and the output of the plurality of detectors is detected in the charge. means for calculating the time for the charge to pass between these detectors, and arithmetic processing means for calculating the descending speed of the charge from the time obtained by this means and the distance between the plurality of detectors. A device for measuring the rate of descent of materials contained in a blast furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6446984A JPS60209184A (en) | 1984-03-31 | 1984-03-31 | Measuring instrument for descendent speed of charge in blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6446984A JPS60209184A (en) | 1984-03-31 | 1984-03-31 | Measuring instrument for descendent speed of charge in blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60209184A true JPS60209184A (en) | 1985-10-21 |
| JPH032428B2 JPH032428B2 (en) | 1991-01-16 |
Family
ID=13259114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6446984A Granted JPS60209184A (en) | 1984-03-31 | 1984-03-31 | Measuring instrument for descendent speed of charge in blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60209184A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574553A (en) * | 1980-06-11 | 1982-01-11 | Fuji Electric Co Ltd | Correlation type speedometer |
-
1984
- 1984-03-31 JP JP6446984A patent/JPS60209184A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574553A (en) * | 1980-06-11 | 1982-01-11 | Fuji Electric Co Ltd | Correlation type speedometer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH032428B2 (en) | 1991-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |