JPH0774397B2 - Method for controlling air permeability of sintering raw material layer - Google Patents
Method for controlling air permeability of sintering raw material layerInfo
- Publication number
- JPH0774397B2 JPH0774397B2 JP1174697A JP17469789A JPH0774397B2 JP H0774397 B2 JPH0774397 B2 JP H0774397B2 JP 1174697 A JP1174697 A JP 1174697A JP 17469789 A JP17469789 A JP 17469789A JP H0774397 B2 JPH0774397 B2 JP H0774397B2
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- Prior art keywords
- air permeability
- raw material
- material layer
- pallet
- control rod
- Prior art date
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Description
【発明の詳細な説明】 産業上の利用分野 この発明はDL型焼結機の操業において、焼結原料の装入
部におけるパレット上原料層の通気度を迅速に制御し、
安定した焼結操業を可能とする焼結原料層の通気度制御
方法に関する。Description: TECHNICAL FIELD The present invention, in the operation of a DL type sintering machine, rapidly controls the air permeability of a raw material layer on a pallet in a charging portion of a sintering raw material,
The present invention relates to a method for controlling air permeability of a sintering raw material layer that enables stable sintering operation.
技術的背景 DL型焼結機による焼結鉱の製造においては、サージポッ
パーから切出された焼結原料をパレット上へ400〜600mm
程度の層厚に装入するが、DL型焼結機は下方吸引方式で
あるため、焼成の進行に伴ない下層部の焼成には上層部
の冷却に用いられて昇温されたガスが用いられることに
なる。Technical background In the production of sinter using a DL type sintering machine, the sintering raw material cut out from the surge popper is placed on a pallet at 400 to 600 mm.
Although the DL type sintering machine uses a downward suction method, the gas heated to the upper layer is used for firing the lower layer as the firing progresses. Will be done.
このため、下層部は必然的に多量の熱が加えられるとと
もに、高温ガスが加えられるために冷却が遅れ、赤熱帯
が肥大化する傾向がある。そして、この赤熱帯は通気性
を阻害するため焼結層内通過風量を減少させ、ひいては
生産性を阻害する原因となる。したがって、生産性の維
持および向上に対してはこの赤熱帯、いわゆる下層部の
通気性向上が課題となる。Therefore, a large amount of heat is inevitably applied to the lower layer portion, and cooling is delayed due to the addition of high-temperature gas, which tends to enlarge the red tropical zone. Further, this red tropical zone impairs air permeability, so that the amount of air passing through the sintered layer is reduced, which eventually becomes a cause of impairing productivity. Therefore, in order to maintain and improve productivity, improving the air permeability of this red tropical zone, so-called lower layer, becomes an issue.
また一方で、焼結機操業上の各種因子の内、原料平均粒
径および層厚の変動は、原料平均粒径と通気度の関係を
第９図に、層厚と通気度の関係を第10図に示すように、
それぞれ通気度に大きな影響をおよぼすため、操業の適
正化および安定化のためには適正な通気性の維持も課題
となってくる。On the other hand, among the various factors in the operation of the sintering machine, the fluctuation of the average particle diameter of the raw material and the layer thickness shows the relationship between the average particle diameter of the raw material and the air permeability in FIG. 9, and the relation between the layer thickness and the air permeability in FIG. As shown in Figure 10,
Since each has a great influence on air permeability, maintaining proper air permeability is also an issue for optimizing and stabilizing the operation.
第11図は一般的DL型焼結機の１ケ月間の操業推移を示す
ものであるが、この推移からも原料平均粒径、層厚等に
より通気度が変動していることがわかる。Fig. 11 shows the operation of a general DL type sintering machine for one month. From this transition, it can be seen that the air permeability changes depending on the average particle size of the raw material, the layer thickness, etc.
従来の技術 従来行なわれている通気性の改善方法としては、次に記
載する方法が一般的な方法として知られている。2. Description of the Related Art As a conventional method for improving air permeability, the following method is known as a general method.
生石灰、消石灰などのバインダーを添加して焼結原
料の疑似粒子化を進め、焼結パレット上での乾燥後水分
がなくなっても疑似粒子構造が崩壊しないようにして通
気性を改善する方法（鉄と鋼68年６号）。A method to improve the air permeability by adding a binder such as quick lime or slaked lime to promote the pseudo-particle formation of the sintering raw material so that the pseudo-particle structure does not collapse even if the water content disappears after drying on the sintering pallet (iron. And Steel 68 No. 6).
粗粒原料を下層に、細粒原料を上層にそれぞれ偏析
さる偏析装入方法（実開昭60−155894）。Segregation charging method in which coarse-grained raw material is segregated in the lower layer and fine-grained raw material is segregated in the upper layer (Actual Development Sho 60-155894).
製品焼結鉱の塩基度（CaO/SiO2）を上昇させること
によって通気性を改善する方法。Product A method of improving air permeability by increasing the basicity (CaO / SiO 2 ) of sinter.
しかし、これらの方法にはそれぞれ問題点がある。However, each of these methods has problems.
疑似粒子化方法については、バインダーに用いる生石
灰等の原料が高価であること、疑似粒子化による通気性
制御は、ある程度迄の通気性改善に対しては、上記バイ
ンダーの増量で対応できるが、それ以上に対応するため
には、造粒機の改善等かなり大がかりな設備投資が必要
となり、必然的に制御範囲が限られたものとなる。Regarding the method of forming pseudo particles, the raw material such as quick lime used for the binder is expensive, and the air permeability control by forming the pseudo particles can be achieved by increasing the amount of the binder to improve the air permeability to some extent. In order to deal with the above, a considerably large amount of capital investment such as improvement of the granulator is required, and the control range is inevitably limited.
また、偏析装入方法による通気性改善においても層内
の粒度偏析だけでは、改善に限度があることと、原料が
細粒化した場合には、その限度が更に引き下げられると
いう制約がある。Further, even in the improvement of air permeability by the segregation charging method, there is a limitation that only the particle size segregation in the layer can improve, and if the raw material becomes finer, the limit can be further lowered.
また、製品焼結鉱の塩基度の上昇は、高炉側のスラグ
設計より上限が定められること等の問題点があった。Further, there is a problem that the upper limit of the basicity of the product sinter is set by the slag design on the blast furnace side.
さらにこれらすべての方法では、操業中に通気性が変動
した場合、通気制御と通気性変化との時間遅れが大きい
という問題があった。Further, all of these methods have a problem that when the air permeability changes during operation, there is a large time delay between the air flow control and the change in air permeability.
これらの問題点を解決するために、この発明者は通気棒
を原料給鉱部より原料層内に挿入するという方法を先に
提案した（特願平１−85487号）。In order to solve these problems, the present inventor has previously proposed a method of inserting a ventilation rod into the raw material layer from the raw material ore feeding section (Japanese Patent Application No. 1-85487).
この方法によれば、原料装入部におけるパレット内原料
層に通気度制御棒をパレット進行方向に挿入することに
よって、当該原料層に空隙が形成されるので、その部分
の通気性は向上する。According to this method, by inserting the air permeability control rod into the pallet raw material layer in the raw material charging portion in the pallet advancing direction, voids are formed in the raw material layer, so that the air permeability of that portion is improved.
しかしながら、通気性制御の結果であるところの焼結原
料層の通気性の測定結果等に対して通気性を制御する方
法がとられていないため、通気性変動に対して迅速に対
応できないという問題がある。However, since there is no method for controlling the air permeability with respect to the result of the air permeability control, that is, the measurement result of the air permeability of the sintering raw material layer, it is not possible to quickly respond to the change in the air permeability. There is.
発明が解決しようとする課題 この発明は前期通気棒を挿入して通気度を制御する方法
における問題、すなわち通気性変動に対して迅速に対応
できないという問題を解決すべく、焼結原料層の通気性
に基づいて迅速に通気性制御を実施することによって、
通気性変動に対して時間遅れなく、通気度の最適操業ポ
イントで安定した操業を達成することができる通気度制
御方法を提案しようとするものである。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention aims to solve the problem in the method of controlling the air permeability by inserting a ventilation rod in the previous period, that is, the problem of not being able to quickly respond to fluctuations in air permeability, so By implementing breathability control quickly based on
An attempt is made to propose a ventilation rate control method capable of achieving stable operation at an optimal operation point of air permeability without a time delay with respect to a change in air permeability.
課題を解決するための手段 この発明は、DL型焼結機の原料装入部の床敷鉱給鉱部と
焼結原料給鉱部との間から、パレット内原料層内に通気
度制御棒をパレット進行方向にグレート面と平行に挿入
する焼結原料層通気度制御方法において、風箱内のパレ
ット幅方向の排気温度の測定値から求めた通気度に基づ
き、パレット幅方向で個々の通気度制御棒の原料層内の
挿入深度を調整すると共に、各風箱の排気温度から推定
した焼結原料燃焼前線、赤熱帯の形状に基づいて、上下
方向の個々の通気度制御棒の原料層内の挿入深度を調整
することを要旨とするものである。Means for Solving the Problems The present invention is to provide an air permeability control rod in a raw material layer in a pallet from between a bedding ore feeding portion and a sintering raw material feeding portion of a raw material charging portion of a DL type sintering machine. In the method for controlling the air permeability of the sintering raw material layer in which the pallets are inserted in the pallet traveling direction in parallel with each other, based on the air permeability obtained from the measured value of the exhaust temperature in the pallet width direction in the wind box, In addition to adjusting the insertion depth of the degree control rod into the raw material layer, the raw material layer of the individual air permeability control rods in the vertical direction is based on the sintering raw material combustion front and the shape of the red tropical zone estimated from the exhaust temperature of each wind box. The gist is to adjust the insertion depth inside.
作用 原料装入部におけるパレット内原料層の下層部に空隙を
つくるために挿入する通気度制御棒は、パレットの幅方
向および高さ方向に複数配し、かつ滑車等を介してモー
ター駆動等により挿入深度調整が個々にできるように設
置される。Action A plurality of air permeability control rods are inserted in the lower part of the raw material layer in the pallet in the raw material charging part, and are arranged in the width and height directions of the pallet, and are driven by a motor through a pulley etc. It is installed so that the insertion depth can be adjusted individually.
通気度制御棒の挿入深度は、例えば風箱部において測定
される排風温度または風量に基づいて演算された通気度
に応じて、通気度制御棒挿入用モータを制御して調整す
る。The insertion depth of the air permeability control rod is adjusted by controlling the motor for inserting the air permeability control rod according to the air permeability calculated based on, for example, the exhaust air temperature or the air volume measured in the wind box part.
パレット幅方向の個々の通気度制御棒の挿入深度調整
は、例えば風箱部のパレット幅方向の排風温度値により
求められた通気度に基づいて挿入深度分布を調整し、最
適なパレット幅方向の温度分布が維持できるようにす
る。For adjusting the insertion depth of each air permeability control rod in the pallet width direction, for example, adjust the insertion depth distribution based on the air permeability obtained from the exhaust air temperature value in the pallet width direction of the wind box section, and adjust the optimum pallet width direction. To maintain the temperature distribution of.
パレット高さ方向の個々の通気度制御棒の挿入深度調整
は、例えば風箱のパレット長手方向の排風温度値により
焼結原料燃焼前線、赤熱帯等の形状を推定し、その形状
が最適となるようにパレット高さ方向の個々の通気度制
御棒の挿入深度を調整する。For adjusting the insertion depth of individual air permeability control rods in the pallet height direction, for example, the shape of the sintering raw material combustion front, red tropical zone, etc. is estimated based on the exhaust air temperature value in the pallet longitudinal direction of the wind box, and that shape is determined to be optimal. Adjust the insertion depth of each air permeability control rod in the pallet height direction so that
実施例 第１図はこの発明方法を実施するための装置構成例を一
部破断して示す概略図、第２図は第１図II−II線上の概
略縦断面図であり、（１）はサージホッパー、（２）は
ロールフィーダ、（３）はデフレクターシュート、
（４）は焼結機パレット、（５）は風箱、（６）は排風
機、（７）は床敷鉱ホッパー、（８）は架台、（９）は
ワイヤからなる通気度制御棒、（10）は制御棒ドラム、
（11）は挿入深度調整用モータ、（12）は風量計、（1
3）は通気度演算装置、（14）は通気度制御棒挿入深度
制御装置（以下説明の便宜上「挿入深度制御装置」と略
称する）、（15）は床敷鉱、（16）は焼結原料である。Embodiment FIG. 1 is a schematic view showing a partially broken-away structural example of an apparatus for carrying out the method of the present invention, FIG. 2 is a schematic vertical sectional view taken along the line II-II in FIG. 1, and (1) is Surge hopper, (2) roll feeder, (3) deflector chute,
(4) is a sinter machine pallet, (5) is an air box, (6) is an air exhauster, (7) is a floor mine ore hopper, (8) is a pedestal, and (9) is an air permeability control rod made of wire, (10) is a control rod drum,
(11) is a motor for adjusting the insertion depth, (12) is an air flow meter, (1
3) is the air permeability calculation device, (14) is the air permeability control rod insertion depth control device (abbreviated as "insertion depth control device" for convenience of description below), (15) is floor mat, (16) is sintered It is a raw material.
通気度制御棒（９）は床敷鉱ホッパー（７）と原料給鉱
部との間にパレットグレート面の床敷鉱層より若干浮か
して設置した架台（８）に、第２図に示すごとく例えば
千鳥状に配置した滑車（17）を介してパレット進行方向
に可動となし、各制御棒毎に独立して設けられた挿入深
度調整用モータ（11）にてパレット進行方向に進退自在
となしている。The air permeability control rod (9) is installed between the bedding ore hopper (7) and the raw material ore feeding section, on a pedestal (8) installed slightly above the bedding ore layer on the pallet great surface, as shown in FIG. It is movable in the pallet traveling direction via the staggered pulleys (17), and can be moved back and forth in the pallet traveling direction by an insertion depth adjusting motor (11) independently provided for each control rod. There is.
上記装置において、焼結原料（16）はサージホッパーか
らロールフィーダ（２）を介して切出され、デフレクタ
ーシュート（３）を転動落下してパレット（４）上へ装
入される。In the above-mentioned apparatus, the sintering raw material (16) is cut out from the surge hopper via the roll feeder (2), rolls down on the deflector chute (3) and is loaded onto the pallet (4).
他方、床敷鉱（15）は床敷鉱ホッパー（７）より切出さ
れ、パレットグレート面上に約50mm程度敷き詰められ、
この床敷鉱層（15−１）の上に焼結原料層（16−１）が
形成される。On the other hand, the bedding ore (15) is cut out from the bedding ore hopper (7) and laid about 50 mm on the pallet great surface,
The sintering raw material layer (16-1) is formed on the bed bed ore layer (15-1).
この時、原料給鉱部の原料層内に通気度制御棒（９）が
パレット進行方向にグレート面と平行に装入され、パレ
ットの移動によって原料層に空隙が形成される。その
後、この空隙が形成された状態の焼結原料層の通気度が
例えば風箱部に設置した風量計（12）で測定される風量
に基づいて通気度演算装置（13）により演算される。そ
して、この演算された通気度が装入深度制御装置（14）
に入力され、挿入深度調整用モータ（11）により各通気
度制御棒の挿入深度および全体的な挿入深度分布が調整
される。At this time, the air permeability control rod (9) is inserted in the raw material layer of the raw material ore feeding section in parallel with the grate surface in the pallet advancing direction, and a gap is formed in the raw material layer by the movement of the pallet. After that, the air permeability of the sintering raw material layer in the state where the voids are formed is calculated by the air permeability calculating device (13) based on the air volume measured by, for example, the air flow meter (12) installed in the air box part. The calculated air permeability is the charging depth control device (14).
And the insertion depth adjusting motor (11) adjusts the insertion depth of each air permeability control rod and the overall insertion depth distribution.
第３図は通気度制御棒のパレット幅方向の原料層内深度
分布の調整方法を示す概略図、第４図は通気度制御棒の
パレット内上下方向の原料層内深度分布の調整方法を示
す概略図である。FIG. 3 is a schematic diagram showing a method of adjusting the depth distribution in the raw material layer in the pallet width direction of the air permeability control rod, and FIG. 4 is a method of adjusting the depth distribution in the raw material layer in the vertical direction of the air permeability control rod in the pallet. It is a schematic diagram.
すなわち、パレット幅方向の挿入深度分布を調整する場
合は、第３図に示すごとく、風箱（５）内のパレット幅
方向に排風温度計（20）を複数個設置し、データ変換器
（21）を介して入力される各温度計の測定値に基づいて
演算装置（13）によりパレット幅方向の通気度を演算
し、最適なパレット幅方向の温度分布が維持されるよう
に前記通気度に応じてパレット幅方向の個々の通気度制
御棒（９）の原料層内深度分布を調整する。That is, when adjusting the insertion depth distribution in the pallet width direction, as shown in FIG. 3, a plurality of exhaust air thermometers (20) are installed in the pallet width direction in the wind box (5) and the data converter ( The air permeability in the pallet width direction is calculated by the arithmetic unit (13) based on the measured values of the thermometers input via 21), and the air permeability is maintained so that the optimum temperature distribution in the pallet width direction is maintained. The depth distribution in the raw material layer of each air permeability control rod (9) in the pallet width direction is adjusted accordingly.
また、パレット上下方向の深度分布を調整する場合は、
第４図に示すごとく、各風箱に排風温度計（20）を設
け、データ変換器（21）を介して入力される各温度計の
測定値に基づいて演算装置（13）により燃焼原料燃焼前
線（23）、赤熱帯（24）の形状を推定し、その形状が最
適となるように上下方向の個々の通気度制御棒（９）の
原料層内深度分布を調整する。Also, when adjusting the depth distribution in the vertical direction of the pallet,
As shown in FIG. 4, an exhaust air thermometer (20) is provided in each wind box, and the combustion raw material is burned by the arithmetic unit (13) based on the measured value of each thermometer input through the data converter (21). The shapes of the combustion front (23) and the red tropical zone (24) are estimated, and the depth distribution in the raw material layer of each air permeability control rod (9) in the vertical direction is adjusted so that the shapes are optimal.
次に、この発明方法を実機に適用した場合のエネルギー
諸元と品質の通気度制御棒を用いない場合と比較して第
５図に、ストランドクーリング方式の焼結機における通
気度制御棒の有無による諸元変化を通気棒を用いない場
合と比較して第６図に示す。Next, in comparison with the case where the method of the present invention is applied to an actual machine and the case where the air permeability control rod of quality and quality is not used, FIG. 5 shows the presence or absence of the air permeability control rod in the strand cooling type sintering machine. Fig. 6 shows the change in specifications due to the comparison with the case where no ventilation rod is used.
なお本実施例は、直径15mmφ（SS材）のワイヤ20本を、
下段列がパレットグレート面から150mmの高さに位置
し、この位置から100mmの高さに上段列が位置し、かつ
パレット幅方向に100mmの間隔をおいて千鳥状に配置し
た。In this example, 20 wires with a diameter of 15 mmφ (SS material)
The lower row was located at a height of 150 mm from the pallet great surface, the upper row was located at a height of 100 mm from this position, and the rows were arranged in a staggered pattern at intervals of 100 mm in the pallet width direction.
第５図より明らかなごとく、原料層下層部に通気棒を挿
入することで、品質面では若干低下傾向を示すが、生産
性、エネルギー諸元は大幅に好転している。As is clear from FIG. 5, by inserting the ventilation rod in the lower layer of the raw material layer, the quality tends to be slightly deteriorated, but the productivity and energy specifications are greatly improved.
また、第６図から明らかなごとく、ストランドクーリン
グ方式では回収蒸気量に最も大きく影響する冷却部の風
量が、通気棒の挿入により、大幅に増加していることが
わかる。これは、成品の冷却に用いられるため生産性の
向上にもつながる。Further, as is clear from FIG. 6, in the strand cooling system, the air volume in the cooling section, which has the greatest effect on the amount of recovered steam, greatly increases due to the insertion of the ventilation rod. This also improves productivity because it is used to cool the product.
また第７図には、ストランドクーリング方式の焼結機に
おいて通気度制御棒の挿入体積を変化させた場合の冷却
部通気度の変化を示す。Further, FIG. 7 shows changes in the air permeability of the cooling section when the insertion volume of the air permeability control rod is changed in the strand cooling type sintering machine.
第７図より、通気度制御棒の挿入体積により冷却部通気
度を制御できることが明らかである。From FIG. 7, it is clear that the cooling section ventilation rate can be controlled by the insertion volume of the ventilation rate control rod.
また第８図には、個々の通気度制御棒の挿入深度を調整
して冷却部通気度を変化させた場合の蒸気回収量の変化
を示す。Further, FIG. 8 shows a change in the amount of vapor recovered when the insertion depth of each air permeability control rod is adjusted to change the air permeability of the cooling section.
第８図より、蒸気回収量に対しては適正な冷却部通気度
の操業範囲が存在し、通気度制御により、常に蒸気回収
量等のエネルギー諸元を最適とすることが可能であるこ
とがわかる。From FIG. 8, it is found that there is a proper operating range of the ventilation rate of the cooling section with respect to the steam recovery amount, and it is possible to always optimize the energy specifications such as the steam recovery amount by controlling the air permeability. Recognize.
発明の効果 以上説明したごとく、この発明は個々の通気度制御棒の
原料層内の挿入深度およびパレット幅方向、パレット高
さ方向の原料層内深度分布の調整を、焼結原料層の排風
温度や風量等の通気性データに基づいてフィードバック
制御にて行なう方法であるから、操業中における通気性
の変動に迅速に対応でき、通気度の最適操業ポイントで
安定した操業を達成することができる。EFFECTS OF THE INVENTION As described above, according to the present invention, the depth of insertion of the individual air permeability control rods in the raw material layer and the depth distribution in the raw material layer in the pallet width direction and the pallet height direction are adjusted by exhausting the sintering raw material layer. Since this is a method of performing feedback control based on air permeability data such as temperature and air volume, it is possible to quickly respond to changes in air permeability during operation and achieve stable operation at the optimum operation point of air permeability. .
したがって、この発明によれば、品質に大きな影響をお
よぼすことなく生産性、および蒸気回収量等のエネルギ
ー諸元を向上させることができ、焼結鉱の製造に大にな
る効果を奏するものである。Therefore, according to the present invention, productivity and energy specifications such as the amount of vapor recovery can be improved without significantly affecting the quality, and a great effect is produced in the production of sinter. .
第１図はこの発明方法を実施するための装置構成例を一
部破断して示す概略図、第２図は第１図II−II線上の概
略縦断正面図、第３図は通気度制御棒によるパレット幅
方向の原料層内深度分布調整方法の一例を示す概略図、
第４図は同じく通気度制御棒によるパレット上下方向の
原料層内深度分布調整方法の一例を示す概略図、第５図
はこの発明方法を実機に適用した場合の結果を示す図、
第６図はストランドクーリング方式の焼結機にこの発明
方法を適用した場合の諸元変化を示す図、第７図はスト
ランドクーリング方式の焼結機において通気度制御棒の
挿入体積を変化させた場合の冷却部通気度の変化を示す
図、第８図は同じく通気度制御棒の挿入深度を調整して
冷却部通気度を変化させた場合の蒸気回収量の変化を示
す図、第９図はこの発明の対象とするDL型焼結機におけ
る原料平均粒径と通気度の関係を示す図、第10図は同上
焼結機における原料層厚と通気度の関係を示す図、第11
図は同上焼結機における１ケ月間の操業推移の一例を示
す図である。 ４……焼結機パレット、５……風箱 ９……通気度制御棒 11……挿入深度調整用モータ 12……風量計 13……通気度演算装置 14……挿入深度制御装置FIG. 1 is a schematic view showing an example of a device configuration for carrying out the method of the present invention by partially breaking it, FIG. 2 is a schematic vertical sectional front view on the line II-II in FIG. 1, and FIG. 3 is a ventilation control rod. Schematic showing an example of the method of adjusting the depth distribution in the raw material layer in the pallet width direction by
FIG. 4 is a schematic view showing an example of a method for adjusting the depth distribution in the raw material layer in the vertical direction of the pallet using the air permeability control rod, and FIG. 5 is a view showing the result when the method of the present invention is applied to an actual machine.
FIG. 6 is a diagram showing changes in specifications when the method of the present invention is applied to a strand cooling type sintering machine, and FIG. 7 is a diagram showing changes in the insertion volume of the air permeability control rod in the strand cooling type sintering machine. FIG. 9 is a diagram showing a change in cooling section air permeability, and FIG. 8 is a diagram showing a change in vapor recovery amount when the cooling section air permeability is changed by similarly adjusting the insertion depth of the air permeability control rod. Is a diagram showing the relationship between the average particle diameter of the raw material and air permeability in the DL type sintering machine which is the subject of the present invention, FIG. 10 is a diagram showing the relationship between the raw material layer thickness and air permeability in the same sintering machine, 11th
The figure is a diagram showing an example of the operating transition of the sintering machine for one month. 4 …… Sintering machine pallet, 5 …… Wind box 9 …… Ventilation control rod 11 …… Insertion depth adjustment motor 12 …… Air flow meter 13 …… Ventilation calculator 14 …… Insertion depth control device
Claims (1)
焼結原料給鉱部との間から、パレット内原料層内に通気
度制御棒をパレット進行方向にグレート面と平行に挿入
する焼結原料層通気度制御方法において、風箱内のパレ
ット幅方向の排気温度の測定値から求めた通気度に基づ
き、パレット幅方向で個々の通気度制御棒の原料層内の
挿入深度を調整すると共に、各風箱の排気温度から推定
した焼結原料燃焼前線、赤熱帯の形状に基づいて、上下
方向の個々の通気度制御棒の原料層内の挿入深度を調整
することを特徴とする焼結原料層の通気度制御方法。1. An air permeability control rod is provided in a raw material layer in a pallet in a raw material layer in a raw material charging portion of a DL type sintering machine in a pallet traveling direction. In the method of controlling the air permeability of the sintering raw material layer to be inserted parallel to the surface, based on the air permeability obtained from the measured value of the exhaust temperature in the pallet width direction in the wind box, the raw material layer of each air permeability control rod in the pallet width direction. In addition to adjusting the insertion depth inside, the insertion depth in the raw material layer of each vertical air permeability control rod is adjusted based on the sintering raw material combustion front and the shape of the red tropical zone estimated from the exhaust temperature of each wind box. A method for controlling air permeability of a sintering raw material layer, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1174697A JPH0774397B2 (en) | 1989-07-06 | 1989-07-06 | Method for controlling air permeability of sintering raw material layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1174697A JPH0774397B2 (en) | 1989-07-06 | 1989-07-06 | Method for controlling air permeability of sintering raw material layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0339424A JPH0339424A (en) | 1991-02-20 |
| JPH0774397B2 true JPH0774397B2 (en) | 1995-08-09 |
Family
ID=15983089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1174697A Expired - Fee Related JPH0774397B2 (en) | 1989-07-06 | 1989-07-06 | Method for controlling air permeability of sintering raw material layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0774397B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9006557B2 (en) | 2011-06-06 | 2015-04-14 | Gentherm Incorporated | Systems and methods for reducing current and increasing voltage in thermoelectric systems |
| US9006556B2 (en) | 2005-06-28 | 2015-04-14 | Genthem Incorporated | Thermoelectric power generator for variable thermal power source |
| US9276188B2 (en) | 2009-07-24 | 2016-03-01 | Gentherm Incorporated | Thermoelectric-based power generation systems and methods |
| US9293680B2 (en) | 2011-06-06 | 2016-03-22 | Gentherm Incorporated | Cartridge-based thermoelectric systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100384126B1 (en) * | 1999-10-30 | 2003-05-14 | 주식회사 포스코 | Horizontal air permeating apparatus of sinter ore bed |
| KR100543184B1 (en) * | 2001-05-17 | 2006-01-20 | 주식회사 포스코 | Breathability Improvement Device of Sintered Layer |
| JP5458780B2 (en) * | 2009-09-30 | 2014-04-02 | Ｊｆｅスチール株式会社 | Sintering machine and method of operating the sintering machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236722B2 (en) * | 1973-05-14 | 1977-09-17 | ||
| JPS5018847A (en) * | 1973-06-21 | 1975-02-27 | ||
| JPS56105437A (en) * | 1980-01-28 | 1981-08-21 | Nippon Steel Corp | Method of sintering by dwight-lloyd sintering machine |
| JPH0638032B2 (en) * | 1987-10-13 | 1994-05-18 | 新日本製鐵株式会社 | Air permeability adjusting device for sintering raw material layer |
-
1989
- 1989-07-06 JP JP1174697A patent/JPH0774397B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9006556B2 (en) | 2005-06-28 | 2015-04-14 | Genthem Incorporated | Thermoelectric power generator for variable thermal power source |
| US9310112B2 (en) | 2007-05-25 | 2016-04-12 | Gentherm Incorporated | System and method for distributed thermoelectric heating and cooling |
| US9366461B2 (en) | 2007-05-25 | 2016-06-14 | Gentherm Incorporated | System and method for climate control within a passenger compartment of a vehicle |
| US9276188B2 (en) | 2009-07-24 | 2016-03-01 | Gentherm Incorporated | Thermoelectric-based power generation systems and methods |
| US9006557B2 (en) | 2011-06-06 | 2015-04-14 | Gentherm Incorporated | Systems and methods for reducing current and increasing voltage in thermoelectric systems |
| US9293680B2 (en) | 2011-06-06 | 2016-03-22 | Gentherm Incorporated | Cartridge-based thermoelectric systems |
| US9306143B2 (en) | 2012-08-01 | 2016-04-05 | Gentherm Incorporated | High efficiency thermoelectric generation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0339424A (en) | 1991-02-20 |
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