JP2000144267A - Method for controlling charge of sintering raw material - Google Patents
Method for controlling charge of sintering raw materialInfo
- Publication number
- JP2000144267A JP2000144267A JP10323673A JP32367398A JP2000144267A JP 2000144267 A JP2000144267 A JP 2000144267A JP 10323673 A JP10323673 A JP 10323673A JP 32367398 A JP32367398 A JP 32367398A JP 2000144267 A JP2000144267 A JP 2000144267A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- fine
- sintering
- sintering raw
- charging
- 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]
【発明の属する技術分野】本発明は焼結パレット上へ焼
結原料を偏析装入するための装入制御方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging control method for segregating charging of a sintering raw material onto a sintering pallet.
【０００２】[0002]
【従来の技術】ＤＬ型焼結機においては、無端鎖状の焼
結パレットに原料装入装置によって焼結原料を装入し、
この装入原料層の表面に点火炉で着火すると共にウイン
ドボックスを介して排風機によって装入原料層の上方部
の空気を吸引することにより、焼結パレットの移動に伴
い焼結原料中に配合されたコークスが燃焼し、順次、焼
結原料の焼結がおこなわれ、排鉱部で焼結パレットより
排出される。この原料装入装置にて焼結パレット上に装
入された焼結原料の上層部は、保熱効果が少なく、急冷
等により脆弱な焼結鉱となるため、下層部に比し燃料分
（カーボン）を多く、かつ粒度が小さくなるように偏析
装入することが焼結鉱の品質及び生産性を向上させるた
めに重要なことである。2. Description of the Related Art In a DL type sintering machine, a sintering raw material is charged into an endless chain-shaped sintering pallet by a raw material charging device.
The surface of the charge material layer is ignited by an ignition furnace, and the air above the charge material layer is sucked by a blower through a wind box, so that the sintering pallet moves and is blended into the sintering material. The coke burns, the sintering of the sintering material is sequentially performed, and the sintering material is discharged from the sintering pallet at the mining part. The upper part of the sintering raw material charged on the sintering pallet by this raw material charging device has a small heat retention effect and becomes brittle sintered ore due to rapid cooling or the like. It is important to improve the quality and productivity of sinter by increasing the amount of carbon and segregating so as to reduce the particle size.
【０００３】このため、特開昭６４−５６８２９号公報
にてスリットバー式装入装置における上層の細粒原料量
の制御手段が提案されている。即ち、図３に示すように
装入シュート７を焼結パレット１０の上方に該焼結パレ
ット１０進行方向に対して一定のシュート角度αを維持
し、上方より上流側シュート８U 、助走板７a 、スリッ
トバー５及び下流側シュート８L を一体に設け、スリッ
トバー５の下方にデフレクターシュート９を設けた装置
構成とし、ホッパー１からフィーダー２で切り出された
焼結原料１７は装入シュート７を滑降中に前記スリット
バー５で粗粒焼結原料２１と微・細粒焼結原料１８に分
離する。そして、スリットバー５間を通過しなかった粗
粒焼結原料２１は、下流側シュート８L を経て焼結パレ
ット１０に落下し、一方、スリットバー５を通過した微
・細粒焼結原料１８は、デフレクターシュート９を経て
焼結パレット１０上の粗粒焼結原料２１の表層に落下す
る。ここで、焼結パレット１０に装入した焼結原料層
（装入原料層１２）の全層厚１３A と下層（粗粒焼結原
料２１）の層厚（下層厚）１３L をそれぞれ測定する層
厚計１６a 、１６b を設け、これらの測定値からスリッ
トバー５を通過した微・細粒焼結原料１８の厚み、すな
わち上層厚１３U を求め、装入原料層１２の全層厚１３
A に対する上層厚１３U の比率を算出し、この比率が予
め設定した値となるように、原料装入装置１１の制御要
素、例えば装入シュート７の上下方向位置、シュート角
度α、スリットバー５のロッド間隔、上流側シュート８
U の長さ等を制御し、スリットバー５を通過する、又は
通過しない焼結原料１７の量をそれぞれ加減するもので
ある。For this reason, Japanese Patent Application Laid-Open No. 64-56829 proposes a means for controlling the amount of fine-grained raw material in the upper layer in a slit bar type charging apparatus. That is, as shown in FIG. 3, the charging chute 7 is maintained above the sintering pallet 10 at a constant chute angle α with respect to the traveling direction of the sintering pallet 10, and the upper chute 8U, the run-up plate 7a, The slit bar 5 and the downstream chute 8L are integrally provided, and a deflector chute 9 is provided below the slit bar 5. The sintering raw material 17 cut out from the hopper 1 by the feeder 2 is sliding down the charging chute 7. Then, the raw material is separated into the coarse sintering raw material 21 and the fine / fine sintering raw material 18 by the slit bar 5. Then, the coarse-grained sintering raw material 21 that has not passed between the slit bars 5 falls on the sintering pallet 10 through the downstream chute 8L, while the fine / fine-grained sintering raw material 18 that has passed through the slit bar 5 is , Through the deflector chute 9, and falls onto the surface layer of the coarse-grained sintering raw material 21 on the sintering pallet 10. Here, a layer for measuring the total thickness 13A of the sintering raw material layer (charging raw material layer 12) charged into the sintering pallet 10 and the layer thickness (lower layer thickness) 13L of the lower layer (coarse-grained sintering raw material 21), respectively. Thickness gauges 16a and 16b are provided, and from these measured values, the thickness of the fine / fine-grained sintering raw material 18 that has passed through the slit bar 5, that is, the upper layer thickness 13U is obtained.
The ratio of the upper layer thickness 13U to A is calculated, and the control elements of the raw material charging device 11, for example, the vertical position of the charging chute 7, the chute angle α, and the slit bar 5 are adjusted so that the ratio becomes a preset value. Rod spacing, upstream chute 8
The length of U is controlled, and the amount of the sintering raw material 17 that passes through or does not pass through the slit bar 5 is adjusted.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、この従
来法では、上層厚１３U の比率を一定にするために原料
装入装置１１自体を制御することから、以下の課題が生
じていた。すなわち、図４に示すように原料装入装置１
１の全体位置を点線に示すように切り出しフィーダー２
から離れる方向（下方向）に移動させると、フィーダー
２から切り出された焼結原料１７の落下位置１４が装入
シュート７の下方へ移動することから、焼結原料１７が
装入シュート７上を滑降する距離が短くなり、装入シュ
ート７上で受ける焼結原料１７の偏析効果が低下する。
また、装入シュート７上の助走板７a を上方に引き上げ
た場合、焼結原料１７が装入シュート７上の助走板７a
上を滑降する距離が短くなってしまい、装入シュート７
上の助走板７a 上で受ける焼結原料１７の偏析効果が低
下する。また、装入シュート７のシュート角度αを大き
くした場合、滑降中の焼結原料１７が装入シュート７上
で受ける摩擦力が小さくなるため焼結原料１７の滑降速
度が速くなり、装入シュート７上で偏析を受ける時間が
短くなり、焼結原料１７の偏析効果が低下する。この結
果、装入シュート７上を滑降中に受ける焼結原料の偏析
効果が大きく低下して、装入原料層１２の全層に渡る偏
析が十分に付かずに焼結鉱の歩留、強度の低下につなが
っていた。However, in this conventional method, since the raw material charging device 11 itself is controlled to keep the ratio of the upper layer thickness 13U constant, the following problems have arisen. That is, as shown in FIG.
Cut out the entire position of 1 as shown by the dotted line Feeder 2
When the sintering material 17 is moved away from the feeder 2 (downward), the falling position 14 of the sintering material 17 cut out from the feeder 2 moves below the charging chute 7. The sliding distance is shortened, and the segregation effect of the sintering raw material 17 received on the charging chute 7 is reduced.
When the run-up plate 7a on the charging chute 7 is lifted upward, the sintering raw material 17
The distance to go down is short, and the loading chute 7
The segregation effect of the sintering raw material 17 received on the upper run-up plate 7a is reduced. In addition, when the chute angle α of the charging chute 7 is increased, the frictional force applied to the sintering raw material 17 on the charging chute 7 during descent is reduced, so that the sliding speed of the sintering raw material 17 is increased, and the charging chute is increased. 7, the time of segregation is shortened, and the segregation effect of the sintering raw material 17 is reduced. As a result, the segregation effect of the sintering raw material received during the downhill on the charging chute 7 is greatly reduced, and the segregation over the entire layer of the charging raw material layer 12 is not sufficiently provided, and the yield and strength of the sintered ore are reduced. Has led to a decline.
【０００５】本発明は、焼結パレット上に装入した焼結
原料の偏析状態に影響を与えずに上層厚みを一定に制御
する焼結原料の装入制御方法を提供することを課題とす
るものである。[0005] It is an object of the present invention to provide a method for controlling the charging of a sintering raw material in which the thickness of the upper layer is controlled to be constant without affecting the segregation state of the sintering raw material charged on the sintering pallet. Things.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記課題を解
決するためになされたものであり、その手段１は、ホッ
パーからフィーダーを介して落下供給される焼結原料を
装入シュートを介して焼結パレット上へ装入する方法に
おいて、前記フィーダーから供給される焼結原料の前記
装入シュート上落下位置の下流側に開口を設けると共
に、該開口の上方から気体を吹き付ける第１のノズルを
設け、この第１のノズルから気体を前記焼結原料に吹き
付けることにより微・細粒焼結原料を前記開口より落下
させて前記焼結原料を粗粒と微・細粒に分離し、この分
離した粗粒焼結原料を前記装入シュート上を滑降させて
前記焼結パレット上に装入し、その表層上に前記開口よ
り落下した微・細粒焼結原料を装入する際、前記焼結パ
レット上の粗粒焼結原料上に装入した微・細粒焼結原料
の層厚が予め設定した値となるように前記第１のノズル
からの気体吹き付け量を制御するものである。Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and its means 1 is to feed a sintering material dropped and supplied from a hopper through a feeder through a charging chute. In the method of charging the sintering material onto the sintering pallet, an opening is provided on a downstream side of a position where the sintering raw material supplied from the feeder falls on the charging chute, and a first nozzle for blowing gas from above the opening is provided. Gas is blown from the first nozzle onto the sintering raw material to cause the fine and fine sintering raw material to fall from the opening to separate the sintering raw material into coarse particles and fine / fine particles. The separated coarse-grained sintering material is slid down on the charging chute and charged on the sintering pallet, and when charging the fine / fine-grained sintering material dropped from the opening onto the surface layer, Coarse grain sintering on sintering pallets The thickness of the fine-fine sintered material was charged onto postal is used to control the gas blowing quantity from the first nozzle so that the preset value.
【０００７】その手段２は、ホッパーからフィーダーを
介して落下供給される焼結原料を装入シュートを介して
焼結パレット上へ装入する方法において、前記フィーダ
ーから供給される焼結原料の前記装入シュート上落下位
置の下流側に開口を設けると共に、該開口の上方から気
体を吹き付ける第１のノズルを設けると共に、この第１
のノズルから気体を前記焼結原料に吹き付けることによ
り微・細粒焼結原料を前記開口より落下させて前記焼結
原料を粗粒と微・細粒に分離し、この分離した粗粒焼結
原料を前記装入シュート上を滑降させて前記焼結パレッ
ト上に装入し、前記装入シュート下部背面側から前記装
入シュートの開口より落下中の微・細粒焼結原料へ気体
を吹き付ける第２のノズルを設け、前記微・細粒焼結原
料に気体を吹き付けて微粒と細粒に分離し、前記焼結パ
レット上に装入した粗粒焼結原料の表層上に細粒焼結原
料を装入し、その表層に微粒焼結原料を装入する際、装
入した該微粒焼結原料と細粒焼結原料の合計層厚が予め
設定した値となるように前記第１のノズルからの気体吹
き付け量を制御すると共に前記装入シュートの下流に設
けた点火炉の内部温度又は該点火炉下流の装入原料層の
着火面の温度が予め設定した値となるように前記第２の
ノズルからの気体吹き付け量を制御するものである。[0007] The means 2 is a method of charging a sintering raw material supplied from a hopper via a feeder onto a sintering pallet via a charging chute. An opening is provided on the downstream side of the charging chute dropping position, and a first nozzle for blowing gas from above the opening is provided.
By spraying a gas onto the sintering raw material from the nozzle, the fine and fine sintering raw material is dropped from the opening to separate the sintering raw material into coarse particles and fine and fine particles. The raw material is slid down on the charging chute and charged on the sintering pallet, and gas is blown from the lower rear side of the charging chute to the fine / fine-grained sintering material falling from the opening of the charging chute. A second nozzle is provided, and fine and fine sintering raw material is blown with gas to separate the fine and fine sintering material, and the fine sintering is performed on the surface layer of the coarse sintering raw material charged on the sintering pallet. When the raw material is charged and the fine-grained sintering raw material is charged into the surface layer, the first layer is mixed so that the total layer thickness of the charged fine-grained sintering material and the fine-grained sintering raw material becomes a preset value. The inside of an ignition furnace provided downstream of the charging chute while controlling the amount of gas blown from the nozzle And controls the gas blowing quantity from the second nozzle so that the temperature of the ignition face of the degrees or the point furnace downstream of the charging material layer is a preset value.
【０００８】その手段３は、前記手段１又は２記載の焼
結原料の装入制御方法において、微・細粒焼結原料の層
厚を、微・細粒焼結原料を装入した後の全層厚から焼結
パレット上に装入した粗粒焼結原料の層厚を減じて求め
るものである。その手段４は、前記手段１又は２記載の
焼結原料の装入制御方法において、微・細粒原料の層厚
を、微・細粒焼結原料を装入した後の全層厚から装入シ
ュート下端に設けたカットゲートの下端高さを減じて求
めるものである。本発明者は、装入シュート上を滑降す
る焼結原料に気体を吹き付けて粗粒と微・細粒に分離す
る場合、焼結原料と、この中のコークス（カーボン源）
は表１に示すような粒度分布を有していることから質量
の軽い微・細粒焼結原料及び微・細粒コークスほど気体
による分級作用を受け易く、焼結原料より容易に分離さ
れる。一方、質量の重い粗粒は、気体を吹き付けられた
後も、装入シュート上を滑降中の流速を保った状態で移
動している。このため、装入シュートを移動することな
く前記吹き付け気体の流量を調整することにより粗粒と
微・細粒の分離比率を調整するとが可能であることを見
いだした。Means 3 is a method for controlling the charging of the sintering raw material according to the means 1 or 2, wherein the layer thickness of the fine and fine sintering raw material after the fine and fine sintering raw material is charged is adjusted. It is determined by subtracting the layer thickness of the coarse-grained sintering raw material charged on the sintering pallet from the total layer thickness. The means 4 is characterized in that, in the charging control method of the sintering raw material according to the above-mentioned means 1 or 2, the layer thickness of the fine and fine-grained raw material is determined from the total thickness after the fine and fine-grained sintering material is charged. This is obtained by subtracting the lower end height of the cut gate provided at the lower end of the entrance chute. When the present inventor blows a gas on a sintering raw material that slides down on a charging chute to separate it into coarse particles and fine / fine particles, the sintering raw material and coke (carbon source) therein
Has a particle size distribution as shown in Table 1, so that the finer and finer sintering raw materials and the finer and finer coke having lighter weight are more susceptible to the classifying action by gas, and are easily separated from the sintering raw materials. . On the other hand, the heavy coarse particles move on the charging chute while maintaining the flow velocity during the downhill even after the gas is blown. For this reason, it has been found that it is possible to adjust the separation ratio between coarse particles and fine / fine particles by adjusting the flow rate of the blowing gas without moving the charging chute.
【０００９】[0009]
【表１】 [Table 1]
【００１０】本発明者はこの点に着目し、図１に示すよ
うに、装入シュート７に開口３を設け、この開口３の上
方に装入シュート７上を滑降する焼結原料１７に向かっ
て気体を吹き付ける第１のノズル１５を設け、開口３を
通過した微・細粒焼結原料１８の層厚が予め設定した値
となるように吹き付け気体の流量を制御することによ
り、原料装入装置１１の位置やシュート角度αを操作せ
ず、すなわち焼結原料１７の偏析効果に影響を与えずに
上層厚１３U を一定にすることが可能となった。ここ
で、上層厚１３U の求め方として、微・細粒焼結原料１
８を装入した後の全層厚１３A から焼結パレット１０上
に装入した粗粒焼結原料２１の層厚を減じて求める方
法、あるいは、図２に示すように、微・細粒焼結原料１
８を装入した後の全層厚１３A から装入シュート７下端
に設けたカットゲート６の下端高さを減じて求める方法
のいずれを用いてもよい。さらに、装入原料層１２の表
層部の微粒焼結原料１９の量と微粒コークスの量の増減
は、装入シュート７下流の点火炉２４の内部温度又は点
火炉２４の下流の装入原料層１２の表面温度に大きく影
響し、微粒焼結原料１９の量と微粒コークスの量が増加
すると、点火炉２４の内部温度又は点火炉２４の下流の
装入原料層１２の表面温度が上昇し、逆に、微粒焼結原
料１９の量と微粒コークスの量が減少すると点火炉２４
の内部温度又は点火炉２４の下流の装入原料層１２の表
面温度が低下するため、装入シュート７下部の背面側に
開口３から落下中の微・細粒焼結原料１８へ向かって気
体を吹き付ける第２のノズル１５L を設け、このノズル
１５L からの気体吹き付け量を制御して、装入シュート
７下流の点火炉２４の内部温度又は点火炉２４の下流の
装入原料層１２の表面温度が予め設定した値となるよう
にすることにより、装入原料層１２の表層部の微粒焼結
原料１９の量と微粒コークスの量を一定に制御すること
が可能となり、点火炉２４での着火状態を常に良好に保
つことが可能になった。The present inventor pays attention to this point, and as shown in FIG. 1, an opening 3 is provided in the charging chute 7, and a sintering raw material 17 sliding down on the charging chute 7 is provided above the opening 3. A first nozzle 15 for spraying a gas is provided, and the flow rate of the blowing gas is controlled so that the layer thickness of the fine / fine-grained sintering raw material 18 that has passed through the opening 3 becomes a preset value. The upper layer thickness 13U can be made constant without operating the position of the apparatus 11 or the chute angle α, that is, without affecting the segregation effect of the sintering raw material 17. Here, as a method of obtaining the upper layer thickness 13U, a fine / fine grain sintering raw material 1
2 is obtained by subtracting the layer thickness of the coarse-grained sintering raw material 21 charged on the sintering pallet 10 from the total layer thickness 13A after the charging of the sintering pallet 10, or as shown in FIG. Material 1
Any method may be used, which is obtained by subtracting the height of the lower end of the cut gate 6 provided at the lower end of the charging chute 7 from the total layer thickness 13A after the charging of the gate 8 has been performed. Further, the amount of the fine sintering raw material 19 and the amount of the fine coke in the surface portion of the charging raw material layer 12 can be increased or decreased depending on the internal temperature of the ignition furnace 24 downstream of the charging chute 7 or the charging raw material layer downstream of the ignition furnace 24. When the amount of fine sintering raw material 19 and the amount of fine coke increase, the internal temperature of ignition furnace 24 or the surface temperature of charged raw material layer 12 downstream of ignition furnace 24 increases, Conversely, when the amount of the fine sintering raw material 19 and the amount of the fine coke decrease, the ignition furnace 24
Because the internal temperature of the raw material or the surface temperature of the charged raw material layer 12 downstream of the ignition furnace 24 decreases, the gas flows toward the fine / fine-grained sintering raw material 18 falling from the opening 3 on the back side of the lower part of the charging chute 7. A second nozzle 15L for spraying gas is provided, and the amount of gas blown from the nozzle 15L is controlled to control the internal temperature of the ignition furnace 24 downstream of the charging chute 7 or the surface temperature of the charged material layer 12 downstream of the ignition furnace 24. Is set to a preset value, the amount of the fine sintering raw material 19 and the amount of the fine coke in the surface portion of the charged raw material layer 12 can be controlled to be constant, and the ignition in the ignition furnace 24 can be performed. It has become possible to keep the condition always good.
【００１１】[0011]
【発明の実施の形態】次に本発明の各請求項に対応した
実施の形態について説明する。 （第１の実施の形態）請求項１、３に対応する実施の形
態を図１を参照しつつ説明する。図１に示す原料装入装
置１１は、ホッパーの一例である給鉱ホッパー１から焼
結原料１７を切り出すフィーダー２の下方に装入シュー
ト７を設け、この装入シュート７には前記フィーダー２
から切り出された焼結原料１７が落下する位置（落下位
置）１４の下流側に開口３を設け、上流側シュート８U
上を滑降して開口３部に達した焼結原料１７に向かって
開口３の上方から気体を吹き付ける第１のノズル１５
と、該第１のノズル１５に連通する気体供給管２０に気
体流量調整弁１５a を設け、更に、焼結パレット１０上
方、即ち、装入シュート７の下部に粗粒焼結原料２１の
層厚（下層厚１３L ）を測定する前方層厚計１６b を設
けると共に装入原料層１２の全層厚１３A を測定する後
方層厚計１６a を前方層厚計１６b の下流側に設けてい
る。また、前記後方層厚計１６a 、前方層厚計１６b の
測定値を入力して、前記第１のノズル１５への気体供給
量を制御するための気体流量調整弁１５a の開度調整を
行うための制御装置Ａを設けた原料装入装置１１であ
る。尚、本例における装入シュート７は上流側シュート
８U と、該上流側シュート８U のシュート面に対して直
角方向に段差Ｚを設けた下流側シュート８L から構成し
たものを用いたが、これに変えて、前記段差Ｚを設けな
いものでもよい。しかし、この場合には多少分級効率は
低下する傾向にある。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments corresponding to the claims of the present invention will be described. (First Embodiment) An embodiment corresponding to claims 1 and 3 will be described with reference to FIG. The raw material charging apparatus 11 shown in FIG. 1 is provided with a charging chute 7 below a feeder 2 for cutting out a sintering raw material 17 from an ore feeding hopper 1 which is an example of a hopper.
The opening 3 is provided on the downstream side of the position (fall position) 14 where the sintering raw material 17 cut out from the
A first nozzle 15 that blows gas from above the opening 3 toward the sintering raw material 17 that has reached the opening 3 by sliding down.
A gas flow control valve 15a is provided in a gas supply pipe 20 communicating with the first nozzle 15, and a layer thickness of the coarse-grained sintering raw material 21 is provided above the sintering pallet 10, that is, below the charging chute 7. A front layer thickness gauge 16b for measuring (lower layer thickness 13L) is provided, and a rear layer thickness gauge 16a for measuring the total layer thickness 13A of the charged material layer 12 is provided downstream of the front layer thickness gauge 16b. In addition, the measured values of the rear layer thickness gauge 16a and the front layer thickness gauge 16b are input to adjust the opening degree of the gas flow control valve 15a for controlling the gas supply amount to the first nozzle 15. Is a raw material charging device 11 provided with the control device A. The charging chute 7 used in this example was composed of an upstream chute 8U and a downstream chute 8L provided with a step Z in a direction perpendicular to the chute surface of the upstream chute 8U. Alternatively, the step Z may not be provided. However, in this case, the classification efficiency tends to decrease somewhat.
【００１２】かくして、焼結原料１７を給鉱ホッパー１
内よりフィーダー２で切り出して上流側シュート８U へ
供給する。この焼結原料１７が開口３の上方に達した際
に第１のノズル１５から気体を吹き付ける。これによ
り、焼結原料１７は表１に示す粒度分布を有しているこ
とから、質量の重い粗粒焼結原料２１（粒径＋１ｍｍ）
は開口３を飛び越えて下流側シュート８L に乗り、該下
流側シュート８L 上を滑降して焼結パレット１０へ層厚
４５０〜６００ｍｍ程度に装入される。一方、質量の軽
い微・細粒焼結原料１８（粒径−１ｍｍ）は、開口３の
上方で気体の進行方向に沿って飛ばされるため、開口３
を通過して落下し、焼結パレット１０上の粗粒焼結原料
２１の表層上へ層厚１０〜５０ｍｍ程度に装入される。
その結果、焼結パレット１０上の装入原料層１２の全層
厚１３A は４６０〜６５０ｍｍ程度となる。Thus, the sintering raw material 17 is supplied to the feed hopper 1
It is cut out from inside by the feeder 2 and supplied to the upstream chute 8U. When the sintering raw material 17 reaches above the opening 3, gas is blown from the first nozzle 15. As a result, since the sintering raw material 17 has the particle size distribution shown in Table 1, the heavy-grained coarse-grained sintering raw material 21 (particle size +1 mm)
Jumps over the opening 3 and rides on the downstream chute 8L, slides down on the downstream chute 8L and is loaded into the sintering pallet 10 with a layer thickness of about 450 to 600 mm. On the other hand, the fine and fine sintering raw material 18 (particle diameter -1 mm) having a small mass is blown over the opening 3 along the direction of the gas flow.
, And is dropped onto the surface layer of the coarse-grained sintering raw material 21 on the sintering pallet 10 to a thickness of about 10 to 50 mm.
As a result, the total thickness 13A of the charged raw material layer 12 on the sintered pallet 10 is about 460 to 650 mm.
【００１３】また、制御装置Ａには、予め上層厚１３U
の目標設定値Ｘを入力すると共に前方層厚計１６b で測
定した下層厚１３L 及び後方層厚計１６a で測定した装
入原料層１２の全層厚１３A を入力する。そして、この
入力した測定全層厚１３A から測定下層厚１３L を減じ
て上層厚１３U を算定し、この算定した上層厚１３Uと
前記目標設定値Ｘに差が生じた場合は、その差を求め、
この差が無くなるような前記気体流量調整弁１５a の開
度調整量を算定し、この算定開度調整量に応じて気体流
量調整弁１５a を調整して気体吹き付け量を増減し、前
記開口３を通過する微・細粒焼結原料１８の量を制御す
ることにより上層厚１３U を一定に維持する。The control device A has an upper layer thickness of 13 U in advance.
And the lower layer thickness 13L measured by the front layer thickness gauge 16b and the total layer thickness 13A of the charged material layer 12 measured by the rear layer thickness gauge 16a. Then, the upper layer thickness 13U is calculated by subtracting the measured lower layer thickness 13L from the input measured total layer thickness 13A. If a difference occurs between the calculated upper layer thickness 13U and the target set value X, the difference is obtained.
The opening adjustment amount of the gas flow control valve 15a that eliminates this difference is calculated, and the gas flow adjustment valve 15a is adjusted according to the calculated opening adjustment amount to increase or decrease the gas blowing amount, and the opening 3 is closed. The upper layer thickness 13U is kept constant by controlling the amount of the fine / fine grain sintering raw material 18 that passes.
【００１４】（第２の実施の形態）請求項２、４に対応
する実施の形態を図２を参照しつつ説明する。図２に示
す原料装入装置１１は、給鉱ホッパー１から焼結原料１
７を切り出すフィーダー２の下流側に装入シュート７を
設け、この装入シュート７には前記フィーダー２から切
り出された焼結原料１７が落下する位置１４の下流側に
開口３を設け、上流側シュート８U 上を滑降して開口３
の上方に達した焼結原料１７に向かって気体を吹き付け
る第１のノズル１５を該開口部３の上方に設けると共に
該第１のノズル１５に連通する気体供給管２０に気体流
量調整弁１５a を設けている。更に、前記開口３を通過
して落下中の微・細粒焼結原料１８に向かって気体を吹
き付ける第２のノズル１５L を装入シュート７下部背面
に設けると共に第２のノズル１５L に連通する気体供給
管２６に気体流量調整弁１５b を設ける。装入シュート
７の下端に上下動可能にカットゲート６を設けると共に
焼結パレット１０上の装入原料層１２の全層厚１３A を
測定する後方層厚計１６を装入シュート７の下流側に設
け、後方層厚計１６の下流側に設けた点火炉２４に内部
の温度を測定する温度計２２を設け、前記点火炉２４の
下流側に装入原料層１２の表面温度（着火面の温度）を
測定する温度計２３を設ける。さらに、後方層厚計１６
の測定値及び前記カットゲート６の下端高さを入力し
て、前記第１のノズル１５への気体供給量を制御するた
めの気体流量調整弁１５a の開度調整を行うための制御
装置Ｂと、前記温度計２２又は２３にいずれかの測定値
を入力して、前記第２のノズル１５L への気体供給量を
制御するための気体流量調整弁１５b の開度調整を行う
ための制御装置Ｃを設ける。(Second Embodiment) An embodiment corresponding to claims 2 and 4 will be described with reference to FIG. The raw material charging apparatus 11 shown in FIG.
A feed chute 7 is provided on the downstream side of the feeder 2 from which the sintering material 7 is cut out. The feed chute 7 is provided with an opening 3 on the downstream side of a position 14 where the sintering material 17 cut out from the feeder 2 falls. Downhill on chute 8U and open 3
A first nozzle 15 for blowing a gas toward the sintering raw material 17 that has reached the upper part of the nozzle 3 is provided above the opening 3 and a gas flow control valve 15a is connected to a gas supply pipe 20 communicating with the first nozzle 15. Provided. Further, a second nozzle 15L for blowing a gas toward the falling fine / fine-grained sintering raw material 18 through the opening 3 is provided on the lower back surface of the charging chute 7 and a gas communicating with the second nozzle 15L is provided. The supply pipe 26 is provided with a gas flow control valve 15b. A cut gate 6 is provided at the lower end of the charging chute 7 so as to be vertically movable, and a rear layer thickness gauge 16 for measuring the total layer thickness 13A of the charging material layer 12 on the sintering pallet 10 is provided downstream of the charging chute 7. A thermometer 22 for measuring the internal temperature is provided in an ignition furnace 24 provided on the downstream side of the rear layer thickness gauge 16, and the surface temperature of the charged raw material layer 12 (the temperature of the ignition surface) is provided on the downstream side of the ignition furnace 24. ) Is provided. Further, the rear layer thickness gauge 16
And a controller B for adjusting the opening of a gas flow control valve 15a for controlling the amount of gas supplied to the first nozzle 15 by inputting the measured value of the cut gate 6 and the height of the lower end of the cut gate 6. A control device C for inputting either measured value to the thermometer 22 or 23 and adjusting the opening of the gas flow control valve 15b for controlling the gas supply amount to the second nozzle 15L. Is provided.
【００１５】かくして、焼結原料１７を給鉱ホッパー１
内よりフィーダー２で切り出して上流側シュート８U へ
供給する。この焼結原料１７は、開口３の上方に達した
際に第１のノズル１５によって気体を吹き付けられる。
焼結原料１７は表１に示す粒度分布を有しており、質量
の重い中粒焼結原料（粒径５〜１ｍｍ）及び粗粒焼結原
料２１（粒径＋５ｍｍ）は開口３より落下せずに下流側
シュート８L に乗り、該下流側シュート８L 上を滑降し
て焼結パレット１０へ層厚４５０〜６００ｍｍ程度に装
入され、装入された中粒、粗粒焼結原料はカットゲート
６にてその表面を均される。一方、質量の軽い微・細粒
焼結原料１８（粒径−１ｍｍ）は、開口３の上方で気体
の進行方向に沿って飛ばされるため、開口３を通過して
落下し、さらに第２のノズル１５L によって気体を吹き
付けられて微粒焼結原料１９（粒径−０．５ｍｍ）と細
粒焼結原料（粒径０．５〜１ｍｍ）に分離され、焼結パ
レット１０上の中粒、粗粒焼結原料２１の表層上へ細粒
焼結原料、微粒焼結原料１９の順にて層厚１０〜５０ｍ
ｍ程度に装入される。その結果、焼結パレット１０上の
装入原料層１２の全層厚１３A は４６０〜６５０ｍｍ程
度となる。Thus, the sintering raw material 17 is supplied to the mining hopper 1
It is cut out from inside by the feeder 2 and supplied to the upstream chute 8U. When the sintering raw material 17 reaches above the opening 3, a gas is blown by the first nozzle 15.
The sintering raw material 17 has a particle size distribution shown in Table 1, and the heavy, medium-grained sintering raw material (grain size 5 to 1 mm) and the coarse-grained sintering raw material 21 (grain size +5 mm) are dropped from the opening 3. Instead, it rides on the downstream chute 8L, slides down the downstream chute 8L, and is loaded into the sintering pallet 10 with a layer thickness of about 450 to 600 mm. At 6 the surface is leveled. On the other hand, the fine and fine-grained sintering raw material 18 (particle diameter -1 mm) having a small mass is blown over the opening 3 in the gas traveling direction, so that it falls through the opening 3 and drops, and Gas is blown by the nozzle 15L to separate into fine sintering raw material 19 (particle size -0.5 mm) and fine sintering raw material (particle size 0.5-1 mm). On the surface layer of the granular sintering raw material 21, the layer thickness is 10 to 50 m in the order of the fine sintering raw material and the fine sintering raw material 19.
m. As a result, the total thickness 13A of the charged raw material layer 12 on the sintered pallet 10 is about 460 to 650 mm.
【００１６】制御装置Ｂには予め上層厚１３U 、即ち、
細粒焼結原料と微粒焼結原料１９の合計層厚の目標設定
値Ｙを入力しておき、後方層厚計１６で測定した装入原
料層１２の全層厚１３A 及び前記カットゲート６の下端
高さ、即ち、下層厚１３L を逐次入力し、この全層厚１
３A からカットゲート６の下端高さを減じて上層厚１３
U を演算し、この算定した上層厚１３U と目標設定値Ｙ
を比較し、これに差が生じた場合は、その差を求め、こ
の差が無くなるような前記気体流量調整弁１５a の開度
調整量を算定し、この算定開度調整量に応じて気体流量
調整弁１５a を調整して気体吹き付け量を増減し、前記
開口３を通過する微・細粒焼結原料１８の量を制御し、
調整することにより上層厚１３U を一定に制御する。
尚、図示はしていないが、カットゲート６を設けずに、
下流側シュート８L の背後に前方層厚計を設置し、該前
方層厚計にて下層厚１３L を測定し、前記後方層厚計１
６にて測定した装入原料層１２の全層厚１３A の測定値
から下層厚１３L の測定値を減じて上層厚１３U を求め
てもよい。The control device B has an upper layer thickness of 13 U in advance, ie,
The target set value Y of the total layer thickness of the fine-grained sintering raw material and the fine-grained sintering raw material 19 is input, and the total thickness 13A of the charged raw material layer 12 measured by the rear thickness gauge 16 and the cut gate 6 The lower end height, that is, the lower layer thickness 13L is sequentially input, and the total layer thickness 1L is input.
3A, the lower end height of the cut gate 6 is reduced to obtain an upper layer thickness of 13
U, and the calculated upper layer thickness 13U and target set value Y
And if there is a difference between them, the difference is obtained, the opening adjustment amount of the gas flow control valve 15a is calculated to eliminate the difference, and the gas flow rate is adjusted according to the calculated opening adjustment amount. By adjusting the regulating valve 15a to increase or decrease the gas blowing amount, the amount of the fine / fine grain sintering raw material 18 passing through the opening 3 is controlled,
By adjusting, the upper layer thickness 13U is controlled to be constant.
Although not shown, without providing the cut gate 6,
A front layer thickness gauge is installed behind the downstream chute 8L, and the lower layer thickness 13L is measured by the front layer thickness meter.
The upper layer thickness 13U may be obtained by subtracting the measured value of the lower layer thickness 13L from the measured value of the total layer thickness 13A of the charged raw material layer 12 measured in 6.
【００１７】制御装置Ｃに予め点火炉２４の内部温度の
目標設定値Ｄ又は点火炉２４下流の装入原料層１２の表
面温度の目標設定値Ｅを入力しておき、点火炉２４の内
部温度を測定する温度計２２の測定値又は点火炉２４下
流の装入原料層１２の表面温度を測定する温度計２３の
測定値を制御装置Ｃに入力して、点火炉２４の内部温度
と目標設定値Ｄに差が生じた場合、又は点火炉２４下流
側の装入原料層１２の表面温度と目標設定値Ｅに差が生
じた場合は、その差を求め、この差が無くなるような前
記気体流量調整弁１５b の開度調整量を算定し、この算
定開度調整量に応じて気体流量調整弁１５b の開度を調
整して第２のノズル１５の気体吹き付け量を増減し、開
口３を通過して落下中の微・細粒焼結原料１８内の微粒
（粒径−０．５ｍｍ）と細粒（粒径０．５〜１ｍｍ）の
分離の程度を調整することにより点火炉２４の内部温度
又は点火炉２４下流の装入原料層１２の表面温度を一定
に制御して安定操業を維持する。The target set value D of the internal temperature of the ignition furnace 24 or the target set value E of the surface temperature of the charged material layer 12 downstream of the ignition furnace 24 is input to the control device C in advance. Of the thermometer 22 for measuring the surface temperature of the charged raw material layer 12 downstream of the ignition furnace 24 or the measurement value of the thermometer 23 for measuring the surface temperature of the charged raw material layer 12 downstream of the ignition furnace 24, the internal temperature of the ignition furnace 24 and the target setting. If there is a difference in the value D, or if there is a difference between the surface temperature of the charged raw material layer 12 downstream of the ignition furnace 24 and the target set value E, the difference is determined and the gas is used to eliminate the difference. The opening adjustment amount of the flow control valve 15b is calculated, and the opening of the gas flow control valve 15b is adjusted according to the calculated opening adjustment amount to increase or decrease the gas blowing amount of the second nozzle 15, thereby opening the opening 3. The fine particles in the fine / fine-grained sintering raw material 18 that have passed and fallen (particle size -0.5 mm ) And fine grains (particle diameter: 0.5 to 1 mm) are adjusted to control the internal temperature of the ignition furnace 24 or the surface temperature of the charged material layer 12 downstream of the ignition furnace 24 to maintain a stable operation. To maintain.
【００１８】[0018]
【発明の効果】本発明は簡単にして、パレット上に装入
した焼結ベッドの下層の偏析状態を良好に維持すると共
に上層厚を目標層厚に制御することが可能となり、焼結
鉱の歩留、強度が向上し、この分野に於ける効果は大き
い。According to the present invention, in a simplified manner, the segregation state of the lower layer of the sintering bed loaded on the pallet can be maintained well and the upper layer thickness can be controlled to the target layer thickness. The yield and strength are improved, and the effect in this field is great.
【図１】本発明の第１の実施の形態に係る焼結原料の装
入制御方法を適用する原料装入装置の説明図である。FIG. 1 is an explanatory view of a raw material charging apparatus to which a method for controlling charging of a sintering raw material according to a first embodiment of the present invention is applied.
【図２】本発明の第２の実施の形態に係る焼結原料の装
入制御方法を適用する原料装入装置の説明図である。FIG. 2 is an explanatory view of a raw material charging apparatus to which a method for controlling charging of a sintering raw material according to a second embodiment of the present invention is applied.
【図３】従来技術の説明図である。FIG. 3 is an explanatory diagram of a conventional technique.
【図４】従来技術の説明図である。FIG. 4 is an explanatory diagram of a conventional technique.
α シュート角度 １ 給鉱ホッパ
ー ２ フィーダー ３ 開口 ５ スリットバー ６ カットゲー
ト ７ 装入シュート ７a 助走板 ８U 上流側シュート ８L 下流側シ
ュート ９ デフレクターシュート １０ 焼結パレ
ット １１ 原料装入装置 １２ 装入原料
層 １３A 全層厚 １３U 上層厚 １３L 下層厚 １４ 落下位置 １５ 第１のノズル １５a 気体流
量調整弁 １５L 第２のノズル １５b 気体流
量調整弁 １６ 後方層厚計 １６a 後方層
厚計 １６b 前方層厚計 １７ 焼結原料 １８ 微・細粒焼結原料 １９ 微粒焼結
原料 ２０ 気体供給管 ２１ 粗粒焼結
原料 ２２ 温度計 ２３ 温度計 ２４ 点火炉 ２６ 気体供給
管α Chute angle 1 Mineral feed hopper 2 Feeder 3 Opening 5 Slit bar 6 Cut gate 7 Charging chute 7a Starter plate 8U Upstream chute 8L Downstream chute 9 Deflector chute 10 Sintering pallet 11 Raw material charging device 12 Charging material layer 13A Total layer thickness 13U Upper layer thickness 13L Lower layer thickness 14 Drop position 15 First nozzle 15a Gas flow control valve 15L Second nozzle 15b Gas flow control valve 16 Rear layer thickness gauge 16a Rear layer thickness gauge 16b Front layer thickness gauge 17 Sintering Raw material 18 Fine / fine sintering raw material 19 Fine sintering raw material 20 Gas supply pipe 21 Coarse sintering raw material 22 Thermometer 23 Thermometer 24 Ignition furnace 26 Gas supply pipe
───────────────────────────────────────────────────── フロントページの続き (72)発明者 柴田 大介 大分県大分市大字西ノ洲１番地 新日本製 鐵株式会社大分製鐵所内 (72)発明者 星野 裕康 大分県大分市大字西ノ洲１番地 新日本製 鐵株式会社大分製鐵所内 Ｆターム(参考） 4K001 AA10 BA02 CA41 GA10 GB01 GB11 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Daisuke Shibata 1 Oshinoshi, Oita, Oita City, Oita Prefecture Inside Nippon Steel Corporation Oita Works (72) Inventor Hiroyasu Hoshino 1 Nishinosu, Oita City, Oita City, Oita New Japan 4K001 AA10 BA02 CA41 GA10 GB01 GB11
Claims (4)
給される焼結原料を装入シュートを介して焼結パレット
上へ装入する方法において、 前記フィーダーから供給される焼結原料の前記装入シュ
ート上落下位置の下流側に開口を設けると共に、該開口
の上方から気体を吹き付ける第１のノズルを設け、この
第１のノズルから気体を前記焼結原料に吹き付けること
により微・細粒焼結原料を前記開口より落下させて前記
焼結原料を粗粒と微・細粒に分離し、この分離した粗粒
焼結原料を前記装入シュート上を滑降させて前記焼結パ
レット上に装入し、その表層上に前記開口より落下した
微・細粒焼結原料を装入する際、前記焼結パレット上の
粗粒焼結原料上に装入した微・細粒焼結原料の層厚が予
め設定した値となるように前記第１のノズルからの気体
吹き付け量を制御することを特徴とする焼結原料の装入
制御方法。1. A method for charging a sintering raw material supplied from a hopper via a feeder onto a sintering pallet via a charging chute, wherein the charging chute for the sintering raw material supplied from the feeder is provided. An opening is provided on the downstream side of the upper drop position, and a first nozzle for blowing a gas from above the opening is provided. Is dropped from the opening to separate the sintering raw material into coarse particles and fine / fine particles, and the separated coarse-grained sintering raw material is slid down on the charging chute and charged on the sintering pallet. When charging the fine / fine-grained sintering material dropped from the opening onto the surface layer, the layer thickness of the fine / fine-grained sintering material charged on the coarse-grained sintering material on the sintering pallet is reduced. The first nozzle is set to a preset value. Charging control method for a sintering material characterized by controlling the gas blowing amount of al.
給される焼結原料を装入シュートを介して焼結パレット
上へ装入する方法において、前記フィーダーから供給さ
れる焼結原料の前記装入シュート上落下位置の下流側に
開口を設けると共に、該開口の上方から気体を吹き付け
る第１のノズルを設けると共に、この第１のノズルから
気体を前記焼結原料に吹き付けることにより微・細粒焼
結原料を前記開口より落下させて前記焼結原料を粗粒と
微・細粒に分離し、この分離した粗粒焼結原料を前記装
入シュート上を滑降させて前記焼結パレット上に装入
し、前記装入シュート下部背面側から前記装入シュート
の開口より落下中の微・細粒焼結原料へ気体を吹き付け
る第２のノズルを設け、前記微・細粒焼結原料に気体を
吹き付けて微粒と細粒に分離し、前記焼結パレット上に
装入した粗粒焼結原料の表層上に細粒焼結原料を装入
し、その表層に微粒焼結原料を装入する際、装入した該
微粒焼結原料と細粒焼結原料の合計層厚が予め設定した
値となるように前記第１のノズルからの気体吹き付け量
を制御すると共に前記装入シュートの下流に設けた点火
炉の内部温度又は該点火炉下流の装入原料層の着火面の
温度が予め設定した値となるように前記第２のノズルか
らの気体吹き付け量を制御することを特徴とする焼結原
料の装入制御方法。2. A method for charging a sintering raw material supplied from a hopper via a feeder onto a sintering pallet via a charging chute, wherein the charging chute for the sintering raw material supplied from the feeder is used. An opening is provided on the downstream side of the upper drop position, and a first nozzle for blowing gas from above the opening is provided. The raw material is dropped from the opening to separate the sintering raw material into coarse particles and fine / fine particles, and the separated coarse-grained sintering raw material is slid down on the charging chute and charged on the sintering pallet. A second nozzle for spraying a gas from the lower rear side of the charging chute to the fine / fine-grained sintering material falling from the opening of the charging chute, and blowing the gas on the fine / fine-grained sintering material; Fine and fine The fine-grained sintering material is charged on the surface layer of the coarse-grained sintering material charged on the sintering pallet, and when the fine-grained sintering material is charged on the surface layer, The amount of gas blown from the first nozzle is controlled so that the total layer thickness of the sintering raw material and the fine-grained sintering material becomes a preset value, and the internal temperature of an ignition furnace provided downstream of the charging chute is controlled. Or controlling the amount of gas blown from the second nozzle so that the temperature of the ignition surface of the charged material layer downstream of the ignition furnace becomes a preset value. .
御方法において、前記焼結パレット上に装入した粗粒焼
結原料の層厚を測定する前方層厚計と、前記微・細粒焼
結原料を装入した後の全層厚を測定する後方層厚計を前
記焼結パレット上方に設け、前記後方層厚計で測定した
微・細粒焼結原料装入後の全層厚値から前記前方層厚計
で測定した粗粒焼結原料の層厚値を減じて前記微・細粒
焼結原料の層厚を求めることを特徴とする焼結原料の装
入制御方法。3. The method for controlling charging of a sintering raw material according to claim 1, wherein a front layer thickness gauge for measuring a layer thickness of the coarse sintering raw material charged on the sintering pallet; -A rear layer thickness gauge for measuring the total layer thickness after charging the fine-grained sintering raw material is provided above the sintering pallet, and after the fine / fine-grained sintering raw material charged with the rear layer thickness gage is measured. Charging the sintering raw material, wherein the thickness of the fine and fine sintering raw material is determined by subtracting the thickness of the coarse sintering raw material measured by the front layer thickness meter from the total thickness. Method.
御方法において、前記焼結パレット上方に設けた後方層
厚計で測定した微・細粒焼結原料を装入した後の全層厚
値から前記装入シュート下端に設けたカットゲートの下
端高さを減じて前記微・細粒焼結原料の層厚を求めるこ
とを特徴とする焼結原料の装入制御方法。4. The method for controlling charging of a sintering raw material according to claim 1, wherein the fine and fine-grained sintering raw material measured by a rear layer thickness gauge provided above the sintering pallet is charged. A method for controlling the charging of the sintering raw material, wherein the layer thickness of the fine and fine sintering raw material is obtained by subtracting the lower end height of the cut gate provided at the lower end of the charging chute from the total layer thickness value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32367398A JP3950244B2 (en) | 1998-11-13 | 1998-11-13 | Sintering raw material charging control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32367398A JP3950244B2 (en) | 1998-11-13 | 1998-11-13 | Sintering raw material charging control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000144267A true JP2000144267A (en) | 2000-05-26 |
| JP3950244B2 JP3950244B2 (en) | 2007-07-25 |
Family
ID=18157341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32367398A Expired - Lifetime JP3950244B2 (en) | 1998-11-13 | 1998-11-13 | Sintering raw material charging control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3950244B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010286158A (en) * | 2009-06-11 | 2010-12-24 | Jfe Steel Corp | Charge condition measuring device for sintered material and method for manufacturing sintered ore |
| JP2011168826A (en) * | 2010-02-17 | 2011-09-01 | Jfe Steel Corp | Sintering machine and operation method of sintering machine |
| CN113295000A (en) * | 2020-08-20 | 2021-08-24 | 中冶长天国际工程有限责任公司 | Material distribution control system and method based on material layer thickness prediction |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106987709B (en) * | 2017-06-09 | 2018-11-13 | 山东钢铁股份有限公司 | A kind of the dispensing flow rate adjusting method and system of sintered material |
-
1998
- 1998-11-13 JP JP32367398A patent/JP3950244B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010286158A (en) * | 2009-06-11 | 2010-12-24 | Jfe Steel Corp | Charge condition measuring device for sintered material and method for manufacturing sintered ore |
| JP2011168826A (en) * | 2010-02-17 | 2011-09-01 | Jfe Steel Corp | Sintering machine and operation method of sintering machine |
| CN113295000A (en) * | 2020-08-20 | 2021-08-24 | 中冶长天国际工程有限责任公司 | Material distribution control system and method based on material layer thickness prediction |
| CN113295000B (en) * | 2020-08-20 | 2022-04-12 | 中冶长天国际工程有限责任公司 | Material distribution control system and method based on material layer thickness prediction |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3950244B2 (en) | 2007-07-25 |
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