JPH07126763A - Method for measuring and controlling thermal level in ore discharging part of sintering machine - Google Patents
Method for measuring and controlling thermal level in ore discharging part of sintering machineInfo
- Publication number
- JPH07126763A JPH07126763A JP29237593A JP29237593A JPH07126763A JP H07126763 A JPH07126763 A JP H07126763A JP 29237593 A JP29237593 A JP 29237593A JP 29237593 A JP29237593 A JP 29237593A JP H07126763 A JPH07126763 A JP H07126763A
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- Japan
- Prior art keywords
- pallet
- sinter
- sintering
- ore
- 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.)
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- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、焼結鉱を製造する過程
において、焼結鉱の歩留りや品位に大きく影響を与える
焼成状況を把握制御するために焼結機排鉱部の焼結鉱の
熱レベルを測定して、指数化し更にこの熱レベルに基づ
いて焼結鉱の焼成完了点を最適な位置に制御する方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sintered ore of a sinter of a sinter machine in order to grasp and control the firing condition that greatly affects the yield and quality of the sinter in the process of manufacturing the sinter. The present invention relates to a method for measuring and indexing the heat level of sinter and controlling the firing completion point of the sinter to an optimum position based on this heat level.
【０００２】[0002]
【従来の技術】従来、焼結機の排鉱部にはＩＴＶモニタ
−があるのみで操業者はそのモニタ−を監視するかまた
は、焼成した焼結鉱の現物を目視して熱レベル、焼成速
度や未燃焼箇所で焼成状況を判断し、焼結原料中の粉コ
−クス比率、パレットスピ−ド、装入原料密度等変更し
ていた。2. Description of the Related Art Conventionally, there is only an ITV monitor in the slag discharge section of a sintering machine, and an operator monitors the monitor, or visually observes the actual sintered sinter ore to determine the heat level and calcination. The firing situation was judged based on the speed and unburned points, and the powder coke ratio in the sintering raw material, the pallet speed, the charging raw material density, etc. were changed.
【０００３】前記のように焼結の焼成状況を作業員の目
視によって判断するには非常な熟練度を要すると共に作
業員個々による差が生じるため安定した操業ができない
といった欠点があった。また、焼結鉱の最適な焼成速度
は装入原料偏析度や装入密度等の種々の条件に左右して
変動すると言われ、それは各々のパレットに付いても一
定ではない。その為に、作業員が焼結機排鉱部の焼結鉱
の断面を長時間観察してその傾向を把握していた。As described above, there is a drawback in that it takes a very high degree of skill to judge the firing condition of the sintering by the operator's eyes, and a stable operation cannot be performed due to a difference between the operators. Further, it is said that the optimum firing rate of the sinter varies depending on various conditions such as the degree of segregation of the raw materials to be charged and the density of the raw materials, and it is not constant even for each pallet. For this reason, the worker had to observe the cross section of the sinter in the sinter of the sinter for a long time to grasp the tendency.
【０００４】更に、最近では、特公昭６２−２２０９９
号公報に開示されているように焼結機パレット排鉱部の
上方に焼結鉱のクラック発生時のクラック音を検出する
音響センサ−と焼結鉱が落下する時の落下音を検出する
センサ−を設け、排鉱部近傍を移動中のパレット上の焼
結鉱表面クッラクを前記検出センサ−にて検出し、この
クラック音と落下音検出センサ−で検出した落下音まで
の所要時間とあらかじめ設定した所要時間とが不一致の
場合に、パレット上焼結鉱破断面を撮像器により撮影
し、この映像を静止画像として取り込み画像処理をする
方法がある。Further, recently, Japanese Patent Publication No. 62-22099.
As disclosed in Japanese Unexamined Patent Publication (Kokai), an acoustic sensor for detecting a crack sound when a crack occurs in the sinter ore and a sensor for detecting a dropping sound when the sinter falls. -Provided, the sinter ore surface cracks on the pallet that is moving in the vicinity of the ore discharge part is detected by the detection sensor, and the time required until the crack sound and the drop sound detected by the drop sound detection sensor and When the set required time does not match, there is a method in which a sinter fracture surface on a pallet is photographed by an imager, and this image is captured as a still image and image processing is performed.
【０００５】[0005]
【発明が解決しようとする課題】しかし、本公報に開示
された方法では、パレット上の焼結鉱成品の凹凸や粉塵
等によるクラック検出エラ−や、更に音響センサ−での
焼結鉱の落下する音の検出では、雑多な周囲の騒音から
焼結鉱の落下音と同様な音を検出して亀裂音や落下音を
正確に検出することが困難で、実測時間と設定時間との
間に不一致がある場合に焼結原料層に新しいクラックが
生じたものと判断して画像を取り込みエラ−を生じてい
た。また、焼結鉱の断面から撮像器までの距離を測定す
るセンサ−としてレ−ザ−を用いているが、このレ−ザ
−も散乱を起こして距離の測定が目的とする測定精度の
要求に合致しなかった。高層厚装入や偏析装入による高
品質かつ高生産性での安定操業を求められている現時点
では、破断面の画像を取り込み、２値化した処理情報の
みでは、細密な焼結操業を維持するには不十分で合っ
た。そのため得られた画像からの情報を特定の制御因子
に結び付け、直ちにフィ−ドバック制御に適用する事が
求められていた。However, according to the method disclosed in this publication, a crack detection error due to unevenness or dust of the sintered mineral product on the pallet, and further falling of the sintered ore by the acoustic sensor. In sound detection, it is difficult to accurately detect crack sounds and falling sounds by detecting sounds similar to those of sinter ore from various ambient noises, and between the actual measurement time and the set time. When there was a mismatch, it was determined that a new crack had occurred in the sintering raw material layer, an image was taken in, and an error occurred. Further, a laser is used as a sensor for measuring the distance from the cross section of the sinter to the image pickup device, and this laser also scatters to measure the distance. Did not match. At the present time, stable operation with high quality and high productivity by high-thickness charging and segregation charging is required, and fine sintering operation can be maintained only by binarizing the fracture surface image and processing information. It wasn't enough to fit. Therefore, it has been required to link the information from the obtained image to a specific control factor and immediately apply it to feedback control.
【０００６】[0006]
【課題を解決するための手段】そこで、本発明者らは前
記課題に鑑み鋭意研究を重ねた結果、ドワイトロイド式
焼結機の排鉱部で焼結層断面の焼結性状を熱画像用カメ
ラにて撮像する方法において、排鉱部で破断落下した振
動音を検出する複数の振動センサ−で落下振動を検出
し、該振動から熱画像用カメラで新しい破断面を撮影し
て画像処理装置に取り込み画像処理にて焼結機排鉱部の
熱レベルを測定して、更に、取り込んだ画像は、焼結機
装入側の装入レベル検出信号に対応するようにパレット
幅方向に複数個分割し処理するか、またはパレット幅方
向に複数個分割し処理すると共に、温度勾配と所定温度
域の面積率で画像処理をする。Therefore, as a result of intensive studies conducted by the present inventors in view of the above-mentioned problems, as a result of the thermal imaging of the sintering property of the cross section of the sintered layer at the mine ore of the Dwightroid type sintering machine. In a method of imaging with a camera, a drop vibration is detected by a plurality of vibration sensors that detect a vibration sound that is broken and dropped at an ore discharge part, and a new fracture surface is photographed by a thermal image camera from the vibration, and an image processing apparatus The heat level of the sinter mine ore is measured by image processing, and more than one image is captured in the pallet width direction so as to correspond to the loading level detection signal on the sinter loading side. The image is divided into two or more parts, or a plurality of parts are divided in the pallet width direction, and image processing is performed with a temperature gradient and an area ratio in a predetermined temperature range.
【０００７】次に、風箱群の排ガス温度又はパレット直
下温度に基づき、推定ヒ−トパタ−ンと比較し、画像処
理装置からのデ−タを補正し、、焼結鉱の焼結完了点に
おける赤熱層がパレット底部に分布するように熱レベル
制御する。風箱群を通過する排ガス温度またはパレット
直下温度を制御する方法を、パレット速度を調整する
か、または、吸引する風量であることを特徴とする焼結
鉱排鉱部の熱レベル制御する。あるいは、焼結鉱の焼結
完了点における断面性状を制御する方法が、焼結原料の
供給量、パレット幅方向の焼結原料の装入密度、あるい
は焼結原料に対するコ−クス配合比率の内の少なくとも
１つ以上を制御することを特徴とする事によって、課題
を解決した。Next, based on the exhaust gas temperature of the wind box group or the temperature immediately below the pallet, the data from the image processing device is corrected by comparing with the estimated heat pattern, and the sintering completion point of the sinter is completed. The heat level is controlled so that the red-hot layer in is distributed at the bottom of the pallet. The method of controlling the temperature of the exhaust gas passing through the wind box group or the temperature immediately below the pallet is to adjust the pallet speed or to control the heat level of the sinter ore discharge part characterized by the amount of air sucked. Alternatively, the method of controlling the cross-sectional property of the sintered ore at the completion point of sintering is determined by the amount of the sintering raw material supplied, the charging density of the sintering raw material in the pallet width direction, or the coke mixing ratio to the sintering raw material. The problem has been solved by controlling at least one of the above.
【０００８】[0008]
【作 用】ドワイトロイド式焼結機においては、複数の
パレットが直列に配置した搬送台車に無軌道に沿って走
行させる。床敷きホッパ−から床敷き鉱をパレット上に
投入した後、サ−ジホッパ−から傾斜シュ−トを経て焼
結原料が床敷き鉱の上に供給量を制御しながら供給され
る。[Operation] In a Dwightroid-type sintering machine, a pallet with multiple pallets arranged in series is run along a trackless track. After the bedding ore is put on the pallet from the bedding hopper, the sintering raw material is supplied from the sarge hopper through the inclined shoe while controlling the supply amount on the bedding ore.
【０００９】内幅４０００ｍｍのパレットの幅方向には
超音波センサ−を等間隔で配置している。それぞれの超
音波センサ−は、パレット幅方向に関し複数の測定点で
パレットに供給される焼結原料の堆積高さを検出するよ
うになっている。更に焼結原料を収容するサ−ジホッパ
−の下部に、ロ−ルリ−フィ−ダ−が設けられ、このロ
−ルリ−フィ−ダ−の回転によって、焼結原料が切り出
され、切り出しゲ−トを介し傾斜シュ−トに落下してパ
レット上に堆積する。このロ−ルフィ−ダ−の回転数を
超音波センサ−からの信号と画像処理槽値より得られた
情報により演算を行い、その演算制御量に基づいて制御
をする。Ultrasonic sensors are arranged at equal intervals in the width direction of a pallet having an inner width of 4000 mm. Each ultrasonic sensor detects the deposition height of the sintering raw material supplied to the pallet at a plurality of measurement points in the pallet width direction. Further, a roll feeder is provided below the sarge hopper for containing the sintering raw material, and the sintering raw material is cut out by the rotation of the roll feeder, and the cutout gauge is provided. And falls on the slanted shoots through the tray and is deposited on the pallet. The rotation speed of the roll feeder is calculated based on the signal from the ultrasonic sensor and the information obtained from the image processing tank value, and is controlled based on the calculated control amount.
【００１０】切り出しゲ−トは、超音波センサ−と同じ
個数のロ−タリ−フィ−ダの軸方向に等間隔では位置さ
れ、個々の切りだしゲ−ト受け板及び昇降部を備え、超
音波センサ−からの信号と、画像処理装置より得られた
情報によって演算をおこない、その演算制御量に基づい
て昇降量、開度が制御される。The cut-out gates are located at equal intervals in the axial direction of the rotary feeder of the same number as the ultrasonic sensors, and are provided with individual cut-out gate receiving plates and elevating parts, A calculation is performed based on the signal from the sound wave sensor and the information obtained from the image processing apparatus, and the elevation amount and the opening degree are controlled based on the calculation control amount.
【００１１】切り出しゲ−トを通過した焼結原料は、パ
レット上にある焼結原料の堆積状況を反映して幅方向流
量分布制御された流れとなる。この制御された幅方向流
量分布は、傾斜シュ−ト上を転動する焼結原料流れにお
いても維持される。なお、制御される幅方向流量分布を
確実に維持するため、傾斜シュ−トの滑走方向に沿って
複数の凹凸、条溝等を形成している。The sintering raw material that has passed through the cutout gate becomes a flow whose flow rate distribution is controlled in the width direction, reflecting the deposition state of the sintering raw material on the pallet. This controlled widthwise flow rate distribution is maintained even in the sintering raw material flow rolling on the inclined shoe. In order to reliably maintain the controlled flow rate distribution in the width direction, a plurality of irregularities, grooves, etc. are formed along the sliding direction of the inclined shoe.
【００１２】傾斜シュ−トを転動または滑走した焼結原
料は、パレット上に既に形成されている焼結原料層の傾
斜面に積み重ねられる。傾斜面に送り込まれた焼結原料
の内、粗粒鉱石は傾斜面を下方まで転動し、細粒鉱石の
転動範囲は小さい。その結果、パレットには、下層部が
粗粒で、上層部が細粒で構成された焼結原料層が形成さ
れる。この焼結原料層の厚み方向に関する粒度分布は、
焼結反応を円滑に進行させる上で効果的である。The sintering raw material rolled or slid on the inclined shoot is stacked on the inclined surface of the sintering raw material layer already formed on the pallet. Of the sintering raw material sent to the inclined surface, coarse-grained ore rolls down the inclined surface, and the rolling range of fine-grained ore is small. As a result, a sintering raw material layer is formed on the pallet, in which the lower layer portion is coarse grains and the upper layer portion is fine grains. The particle size distribution in the thickness direction of this sintering raw material layer is
It is effective in smoothly promoting the sintering reaction.
【００１３】焼結原料層の傾斜面に対して、前述した複
数個の超音波センサ−が指向している。その為、パレッ
ト上における焼結原料はパレット幅方向に関する堆積状
態を常時把握することができる。さらに熱画像用カメラ
から得られた画像によって温度分布にムラが検出される
とこれを是正するように装入堆積状態の管理もなされ
る。焼結機排鉱部で取り込んだ焼結層断面の画像解析結
果と超音波センサ−による検出結果は、対応する切り出
しゲ−トだけでなく、ファジ−重み付け演算により周辺
のゲ−トに送られて開度を調節すると共に、ロ−ルフィ
フィ−ダ−に出力され、パレットに装入される焼結原料
の全体的な供給量制御を行う。The plurality of ultrasonic sensors described above are oriented toward the inclined surface of the sintering raw material layer. Therefore, the deposition state of the sintering raw material on the pallet can be always grasped in the pallet width direction. Furthermore, when unevenness in the temperature distribution is detected by the image obtained from the thermal image camera, the charging and depositing state is managed so as to correct it. The image analysis result of the cross section of the sintered layer and the detection result by the ultrasonic sensor captured in the slag discharge section of the sintering machine are sent not only to the corresponding cutout gate but also to the surrounding gates by fuzzy weighting calculation. In addition to adjusting the opening degree, the overall supply amount of the sintering raw material output to the roll feeder and loaded into the pallet is controlled.
【００１４】焼結原料がパレットに装入され堆積層が形
成されるとパレットは搬送台車で移動して点火炉にて焼
結原料の表層部に着火する。着火した焼結原料はパレッ
ト下部に設けた風箱群によって吸引されるが、この各群
の風箱の吸引風量は最適な焼結焼成状況が保たれるよう
に制御される。制御因子としては画像処理結果に基づい
てなされ、焼結原料が焼結機排鉱部の破断面において高
温部の形状がパレットの底部に分布し、しかも上部から
下部に至ほど温度が高くなるような分布を呈するよう
に、各群の排ガス温度を検出して目標の排ガス温度にな
るように、吸引風量や搬送台車の速度制御がなされる。When the sintering raw material is charged into the pallet and the deposited layer is formed, the pallet is moved by the carrier and the surface layer of the sintering raw material is ignited in the ignition furnace. The ignited sintering raw material is sucked by a wind box group provided at the lower part of the pallet, and the suction air volume of the wind box of each group is controlled so that the optimum sintering and firing condition is maintained. The control factor is based on the result of image processing, and the sintering raw material is such that the shape of the high temperature part is distributed at the bottom of the pallet in the fracture surface of the sinter waste from the sintering machine, and the temperature rises from top to bottom. The exhaust air flow rate and the speed of the carriage are controlled so that the exhaust gas temperature of each group is detected and the target exhaust gas temperature is reached so as to obtain a uniform distribution.
【００１５】焼結原料がパレット上で焼成されると、焼
結機の排鉱部において排出されるが、この時、焼結鉱の
焼成状況を把握し、更に要求される高品位の焼結鉱を得
る為に、排鉱部で破断した焼結鉱の新しい破断面を熱画
像用カメラにて撮影するが、直近の破断を捕らえる為に
破断して落下した焼結鉱が排鉱シュ−トに落下した時の
振動を３個の振動センサ−で捕らえ同一レベルの振動が
２個以上捕らえられたとき、この信号に基づいて直ちに
熱画像用カメラにて撮影する。この熱画像用カメラは拡
角度カメラ一台で７５０ｍｍ×４０００ｍｍの破断面を
撮影する。When the sintering raw material is fired on the pallet, it is discharged at the slag discharge section of the sinter machine. At this time, the sintering condition of the sinter is grasped and the required high-quality sintering is performed. In order to obtain the ore, a new fracture surface of the sintered ore that broke at the smelting section is photographed with a thermal image camera. When three or more vibration sensors of the same level are caught by the vibration sensor when it falls to the camera, the thermal image camera immediately shoots based on this signal. This thermal image camera captures a 750 mm × 4000 mm fracture surface with a single wide-angle camera.
【００１６】撮影した画像は画像処理されるが、焼結原
料を装入する装入部がパレット幅方向に本実施例では１
２分割して制御をならしめる用にしてあり、装入部と排
鉱部とを対応させ管理を容易にして、よりきめ細かい装
入管理をするため温度勾配も複数に分割してデ−タ処理
を行う。また、撮影した画像は温度分布形態や、特定温
度の面積率を算出してこの数値や温度勾配、高温度の位
置の情報をＣＰＵに入力して、焼結機の制御信号として
直ちにフィ−ドバックして制御因子を制御する。The photographed image is image-processed, but the charging portion for charging the sintering raw material is 1 in the present embodiment in the pallet width direction.
It is divided into two parts to smooth out the control, and the charging part and the ore mining part are made to correspond to each other to facilitate the management, and the temperature gradient is also divided into multiple parts for more detailed charging management, and data processing is performed. I do. In the photographed image, the temperature distribution pattern, the area ratio of the specific temperature are calculated, and the numerical value, the temperature gradient, and the information of the high temperature position are input to the CPU, and are immediately fed back as a control signal of the sintering machine. And control the control factor.
【００１７】[0017]
【実施例】以下、図面を参照しながら、焼結機の排鉱部
での焼結鉱の熱レベルを測定し、該測定結果に基づいた
焼結鉱製造における制御方法についての実施例を説明す
る。 焼結原料は、ホッパ−から切り出されて、層厚６
８０ｍｍの高さにパレットに装入され、点火炉にて焼結
鉱に着火して、パレット下部の風箱群より吸引しながら
排鉱部へと進む。EXAMPLES Hereinafter, with reference to the drawings, an example of a control method for measuring the heat level of the sinter in the discharge section of the sinter and measuring the heat level of the sinter based on the measurement result will be described. To do. The sintering raw material was cut out from the hopper to obtain a layer thickness of 6
It is loaded into a pallet at a height of 80 mm, ignites the sintered ore in an ignition furnace, and advances to the mine ore section while sucking from the wind box group under the pallet.
【００１８】排鉱部へ達した焼結鉱は亀裂が生じて落下
しシュ−ト(10)上に落ちる。このシュ−ト(10)上に落ち
た焼結鉱の落下振動を振動センサ−(4) で検出する。こ
の検出信号を熱画像用カメラ(3) にうけて、熱画像用カ
メラで焼結鉱の新しい破断面である赤熱部(2) を撮影す
る。撮影した画像は画像処理装置に送られて画像処理が
なされる。このときの画像処理されたデ−タはデ−タ処
理装置(6) へと転送される。The sintered ore that has reached the exhaust ore portion is cracked and falls, and falls onto the shunt (10). The vibration sensor (4) detects the falling vibration of the sintered ore that has fallen on the shunt (10). The detection signal is received by the thermal image camera (3), and the red hot part (2), which is a new fracture surface of the sinter, is photographed by the thermal image camera. The photographed image is sent to the image processing device for image processing. The image-processed data at this time is transferred to the data processing device (6).
【００１９】デ−タ処理装置(6) では予め入力した処理
情報、焼結鉱の装入側に設けた装入層厚制御のためのパ
レット(16)の幅方向に１２分割し、この分割それぞれに
設けた超音波センサ−と対になった切出しゲ−ト(13)に
よるパレット幅方向の分割や層高による分割、さらには
赤熱部(2) の１１００℃以上の温度の占める温度域の面
積率、最高温度位置とその温度表示、２００℃間隔での
温度勾配等を算出表示させるソフトが入力されて画像処
理装置(5) からの信号を変換している。デ−タ処理装置
(6) で処理された焼結鉱排鉱部(19)の赤熱部(2) のデ−
タは焼結操業を行うＣＰＵ(7) に送られてト−タル的な
管理が行われる。In the data processing device (6), processing information inputted in advance is divided into 12 in the width direction of the pallet (16) for controlling the loading layer thickness provided on the loading side of the sinter, and this division is performed. Dividing in the pallet width direction by the cutting gate (13) paired with the ultrasonic sensor provided in each, and by the height of the layer, and further in the temperature range occupied by the temperature of 1100 ° C or more of the red heating part (2). Software for calculating and displaying the area ratio, the maximum temperature position and its temperature display, and the temperature gradient at 200 ° C. intervals is input to convert the signal from the image processing device (5). Data processing device
Data of the red-hot part (2) of the sinter ore waste part (19) treated in (6)
The data is sent to the CPU (7), which performs the sintering operation, for total management.
【００２０】排鉱部の熱レベルのデ−タより例えば、パ
レット(16)の両側面側の温度分布が中心部より低いなら
ば、焼結原料を装入するパレット(16)両側面側の切出し
ゲ−ト(13)の開度を開き側面の焼結原料(1) の層高を高
くなるように装入する。また、焼結鉱の赤熱部(2) の高
温部がパレット(16)の底部に達していなかった場合に
は、風箱群（81〜8n) のダンパ−開度を調整して吸引す
る空気量の制御やパレット(16)の速度制御またはパレッ
ト直下の温度測定を行い最適な焼成制御を行い品質の良
い焼結鉱を得ることができた。If, for example, the temperature distribution on both sides of the pallet (16) is lower than that of the center of the pallet (16) on the basis of the heat level data of the mine, the pallets (16) into which the sintering raw material is charged are placed on both sides. The opening of the cutting gate (13) is opened, and the sintering raw material (1) on the side surface is charged so that the layer height becomes high. When the hot part of the red hot part (2) of the sinter does not reach the bottom of the pallet (16), the air intake is adjusted by adjusting the damper opening of the wind box group (81 to 8n). By controlling the quantity, controlling the speed of the pallet (16), or measuring the temperature immediately below the pallet, optimal firing control was performed and a good quality sinter was obtained.
【００２１】 [0021]
【００２２】 ００２３】表１に示すような焼結原料をホッパ−（12)
に貯留し、ロ−タリフィ−ダ−(11)によって切出し、パ
レット(16)に装入する焼結原料の装入量を超音波センサ
−(14)で検知し制御回路(15)を介して切出しゲ−ト(13)
を制御し、更に前記したパレットスピ−ドと風箱群（81
〜8n) の吸引風量を制御することによって、表２に示す
ような好結果が得られた。更に、焼結鉱の焼結完了点に
おける断面形状がパレット底部に分布する方法が、焼結
原料の供給量、パレット幅方向の焼結原料の装入密度、
あるいは焼結原料に対するコ−クス配合比率の内の少な
くとも１つ以上を制御することにより好適な焼結鉱が得
られた。[0022] A sintering raw material as shown in Table 1 was used for the hopper (12).
Stored in the pallet, cut out by the rotary feeder (11), and loaded into the pallet (16) by the ultrasonic sensor (14) to detect the loading amount of the sintering raw material, and through the control circuit (15). Cutout Gate (13)
Control the pallet speed and wind box group (81
By controlling the suction air volume of ~ 8n), good results as shown in Table 2 were obtained. Furthermore, the method in which the cross-sectional shape at the sintering completion point of the sinter is distributed to the bottom of the pallet is the amount of the sintering raw material supplied, the packing density of the sintering raw material in the pallet width direction,
Alternatively, a suitable sintered ore was obtained by controlling at least one of the coke mixing ratios with respect to the sintering raw material.
【００２４】[0024]
【発明の効果】排鉱部で破断落下した焼結鉱の落下振動
を検出する複数の振動センサ−を設け、該センサ−で落
下振動を検出し、該振動の検出より熱画像用カメラで新
しい破断面を撮影して画像処理装置に取り込み画像処理
にて焼結機排鉱部の熱レベル測定することによって、従
来の人目による判断に比べて素早くアクションがとられ
るので高い生産につながる。赤熱部を撮影する際、焼結
鉱の落下振動を検出する複数の振動センサ−で検出する
ので、音響センサ−での焼結鉱の落下音の検出方式によ
る、雑多な周囲の騒音からの画像を取り込み時のエラ−
を生ない。更に、高層厚装入や高密度装入による高品質
で高い安定操業を求められている現時点では、破断面の
画像を取り込み、２値化した処理情報のみではないの
で、細密な焼結操業を維持するに十分で、得られた画像
からの情報を焼結操業制御因子に結び付け、直ちにフィ
−ドバック制御に適用する事ができるので安定操業が可
能となる。。取り込んだ画像は、焼結機装入側の装入レ
ベル検出信号に対応するようにパレット幅方向に複数個
分割し処理する事によりパレット幅方向の品質むらをな
くすことができるので、歩留り向上につながる。焼結鉱
の焼結完了点における断面形状がパレット底部に分布す
るように、焼結原料のパレットの進行方向に設けられた
風箱群を通過する排ガス温度によって焼結機排鉱部の熱
レベル制御する事により、パレットスピ−ドを最適にコ
ントロ−ル出来るので生産率の向上につながる。EFFECTS OF THE INVENTION A plurality of vibration sensors for detecting falling vibrations of sinter ore that has broken and dropped at the slag discharge section are provided, and the falling vibrations are detected by the sensors. By taking an image of the fracture surface and importing it into an image processing device to measure the heat level of the sinter waste ore by image processing, quick action can be taken compared to the conventional judgment by human eyes, which leads to high production. When capturing the red-hot part, multiple vibration sensors that detect falling vibrations of the sinter are used for detection. Therefore, the sound sensor detects the falling sound of the sinter, and images from various ambient noises are detected. Error when importing
Do not grow. Furthermore, at the present time when high-quality thick and high-density charging is required for high-quality and stable operation, it is not only the processing information binarized that captures the image of the fracture surface. Stable operation is possible because the information from the obtained image is sufficient for maintenance and can be applied to the feedback control immediately after being linked to the sintering operation control factor. . The captured image can be processed by dividing it into multiple pieces in the pallet width direction so as to correspond to the loading level detection signal on the loading side of the sintering machine, and eliminate unevenness in quality in the pallet width direction, improving yield. Connect The heat level of the sinter mine discharge part depends on the temperature of the exhaust gas passing through the wind box group provided in the traveling direction of the pallet of the sintering raw material so that the cross-sectional shape at the sintering completion point of the sinter is distributed at the bottom of the pallet. By controlling it, the pallet speed can be controlled optimally, leading to an improvement in production rate.
【図１】焼結機排鉱部での赤熱部を検出する概念図であ
る。FIG. 1 is a conceptual diagram for detecting a red-heated part in a sinter mine ore discharge part.
【図２】焼結鉱の装入状況を説明する図である。FIG. 2 is a diagram illustrating a charging situation of sinter.
１ 焼結原料層 ２ 赤熱部 ３ 熱画像用カメラ ４ 振動センサ− ５ 画像処理装置 ６ デ−タ処理装置 ７ ＣＰＵ ８ 風箱群 ９ ダクト １０ シュ−ト １１ ロ−タリ−フィ−ダ− １２ ホッパ− １３ 切出しゲ−ト １４ 超音波センサ− １５ 制御回路 １６ パレット １７ 点火炉 １８ 破断焼結鉱 １９ 排鉱部 1 Sintered Raw Material Layer 2 Red Heat Section 3 Thermal Image Camera 4 Vibration Sensor-5 Image Processing Device 6 Data Processing Device 7 CPU 8 Wind Box Group 9 Duct 10 Shoot 11 Rotary Feeder 12 Hopper -13 Cut-out gate 14 Ultrasonic sensor-15 Control circuit 16 Pallet 17 Ignition furnace 18 Broken sinter ore 19 Excavation part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岡本 泰夫 広島県呉市昭和町11番１号 日新製鋼株式 会社呉製鉄所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuo Okamoto 11-11 Showa-cho, Kure-shi, Hiroshima Nisshin Steel Co., Ltd. Kure Steel Works
Claims (8)
層断面の焼結性状を熱画像用カメラにて撮像する方法に
おいて、排鉱部で破断落下した焼結鉱の落下振動を検出
する複数の振動センサ−を設け、該センサ−で落下振動
を検出し、該振動の検出より熱画像用カメラで新しい破
断面を撮影して画像処理装置に取り込み画像処理にて焼
結機排鉱部の熱レベル測定方法。1. A method of imaging a sintering property of a cross section of a sintered layer by a thermal imaging camera in an exhaust section of a Dwightroid-type sintering machine, in which a falling vibration of a sintered ore that is broken and dropped in the exhaust section is detected. A plurality of vibration sensors for detection are provided, drop vibrations are detected by the sensors, and a new fracture surface is photographed by a thermal image camera from the detection of the vibrations, which is taken into an image processing device and discharged by a sintering machine. Method of measuring heat level of ore.
レベル検出信号に対応するようにパレット幅方向に複数
個分割し処理する事を特徴とする請求項１焼結機排鉱部
の熱レベル測定方法。2. The sinter machine mine discharge according to claim 1, wherein the captured image is divided into a plurality of pieces in the pallet width direction so as to correspond to a loading level detection signal on the loading side of the sintering machine. Method for measuring heat level of parts.
数個分割し処理すると共に、温度勾配と所定温度域の面
積率で画像処理をすることを特徴とする請求項１焼結機
排鉱部の熱レベル測定方法。3. The discharged image from the sintering machine according to claim 1, wherein the captured image is divided into a plurality of pieces in the pallet width direction and processed, and the image processing is performed with a temperature gradient and an area ratio in a predetermined temperature range. Method for measuring heat level.
度のデ−タに基づき、推定ヒ−トパタ−ンと比較し、画
像処理装置からのデ−タを補正し、焼結鉱の排鉱部での
焼結完了点における赤熱層がパレット底部に分布するよ
うに制御する事を特徴とする焼結機排鉱部の熱レベル制
御方法。4. Exhaust ore of sinter is compared with estimated heat pattern based on the data of the exhaust gas temperature of the wind box group or the temperature immediately below the pallet to correct the data from the image processing apparatus. The method for controlling the heat level in the sinter waste ore section, wherein the red heat layer at the sintering completion point in the section is controlled so as to be distributed at the bottom of the pallet.
レット底部に分布するように、焼結原料のパレットの進
行方向に設けられた風箱群を通過する排ガス温度または
パレット直下温度によって焼結機排鉱部の熱レベル制御
する請求項４記載の方法。5. The temperature of exhaust gas passing through a wind box group provided in the traveling direction of the pallet of the sintering raw material or the temperature directly below the pallet so that the red hot layer at the sintering completion point of the sinter is distributed at the bottom of the pallet. The method of claim 4, wherein the heat level of the sinter mine waste is controlled.
ット直下温度を制御する方法が、パレット速度を調整す
ることを特徴とする焼結機排鉱部の熱レベル制御する請
求項５記載の方法。6. The method according to claim 5, wherein the method for controlling the temperature of the exhaust gas passing through the wind box group or the temperature immediately below the pallet comprises controlling the pallet speed to control the heat level of the sinter mine ore. .
下温度を制御する方法が、吸引する風量であることを特
徴とする焼結機排鉱部の熱レベル制御する請求項６記載
の方法。7. The method according to claim 6, wherein the method of controlling the temperature directly below the exhaust gas temperature pallet passing through the wind box group is controlling the heat level of the sinter mine ore discharge section, which is the amount of sucked air.
御する方法が、焼結原料の供給量、パレット幅方向の焼
結原料の装入密度、あるいは焼結原料に対するコ−クス
配合比率の内の少なくとも１つ以上を制御することを特
徴とする請求項４記載の焼結機排鉱部の熱レベル制御す
る方法。8. A method of controlling the cross-sectional shape of a sintered ore at the completion point of sintering is as follows: the amount of the sintering raw material supplied, the density of the sintering raw material charged in the width direction of the pallet, or the coke mixing with the sintering raw material. The method for controlling the heat level in the sinter mine waste section according to claim 4, wherein at least one of the ratios is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29237593A JPH07126763A (en) | 1993-10-29 | 1993-10-29 | Method for measuring and controlling thermal level in ore discharging part of sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29237593A JPH07126763A (en) | 1993-10-29 | 1993-10-29 | Method for measuring and controlling thermal level in ore discharging part of sintering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07126763A true JPH07126763A (en) | 1995-05-16 |
Family
ID=17780990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29237593A Withdrawn JPH07126763A (en) | 1993-10-29 | 1993-10-29 | Method for measuring and controlling thermal level in ore discharging part of sintering machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07126763A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009280837A (en) * | 2008-05-19 | 2009-12-03 | Nippon Steel Corp | Method for controlling quality of sintered ore |
| JP2010286158A (en) * | 2009-06-11 | 2010-12-24 | Jfe Steel Corp | Charge condition measuring device for sintered material and method for manufacturing sintered ore |
| JP2011052858A (en) * | 2009-08-31 | 2011-03-17 | Jfe Steel Corp | Sintering machine |
| KR101068965B1 (en) * | 2007-09-20 | 2011-09-29 | 주식회사 포스코 | Measuring apparatus for flame velocity of sintering furnace and method using it |
| JP2013064540A (en) * | 2011-09-16 | 2013-04-11 | Nippon Steel & Sumitomo Metal Corp | Apparatus for monitoring ore discharging part of sintering machine |
| KR101257421B1 (en) * | 2009-08-14 | 2013-04-23 | 주식회사 포스코 | Deivce and method for measuring quantity of heat for sintering furnace |
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| JP2014034686A (en) * | 2012-08-07 | 2014-02-24 | Nippon Steel & Sumitomo Metal | Production method of sintered ore using pallet position recognition device of sintering machine |
| JP2015004089A (en) * | 2013-06-19 | 2015-01-08 | 新日鐵住金株式会社 | Method of sintering sinter raw material |
| JP2015183219A (en) * | 2014-03-24 | 2015-10-22 | Ｊｆｅスチール株式会社 | Method for manufacturing sintered ore |
| JP2017057481A (en) * | 2015-09-18 | 2017-03-23 | Ｊｆｅスチール株式会社 | Method for producing sintered ore |
-
1993
- 1993-10-29 JP JP29237593A patent/JPH07126763A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101068965B1 (en) * | 2007-09-20 | 2011-09-29 | 주식회사 포스코 | Measuring apparatus for flame velocity of sintering furnace and method using it |
| JP2009280837A (en) * | 2008-05-19 | 2009-12-03 | Nippon Steel Corp | Method for controlling quality of sintered ore |
| JP2010286158A (en) * | 2009-06-11 | 2010-12-24 | Jfe Steel Corp | Charge condition measuring device for sintered material and method for manufacturing sintered ore |
| KR101257421B1 (en) * | 2009-08-14 | 2013-04-23 | 주식회사 포스코 | Deivce and method for measuring quantity of heat for sintering furnace |
| JP2011052858A (en) * | 2009-08-31 | 2011-03-17 | Jfe Steel Corp | Sintering machine |
| JP2013064540A (en) * | 2011-09-16 | 2013-04-11 | Nippon Steel & Sumitomo Metal Corp | Apparatus for monitoring ore discharging part of sintering machine |
| JP2013130367A (en) * | 2011-12-22 | 2013-07-04 | Jfe Steel Corp | Sintering machine, and gaseous fuel supply method |
| JP2014034686A (en) * | 2012-08-07 | 2014-02-24 | Nippon Steel & Sumitomo Metal | Production method of sintered ore using pallet position recognition device of sintering machine |
| JP2015004089A (en) * | 2013-06-19 | 2015-01-08 | 新日鐵住金株式会社 | Method of sintering sinter raw material |
| JP2015183219A (en) * | 2014-03-24 | 2015-10-22 | Ｊｆｅスチール株式会社 | Method for manufacturing sintered ore |
| JP2017057481A (en) * | 2015-09-18 | 2017-03-23 | Ｊｆｅスチール株式会社 | Method for producing sintered ore |
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