JPS6289824A - Level controlling method for sintered ore cooling machine - Google Patents

Level controlling method for sintered ore cooling machine

Info

Publication number
JPS6289824A
JPS6289824A JP22944085A JP22944085A JPS6289824A JP S6289824 A JPS6289824 A JP S6289824A JP 22944085 A JP22944085 A JP 22944085A JP 22944085 A JP22944085 A JP 22944085A JP S6289824 A JPS6289824 A JP S6289824A
Authority
JP
Japan
Prior art keywords
sintered ore
hopper
cooler
amount
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22944085A
Other languages
Japanese (ja)
Inventor
Shoji Kidokoro
城所　祥志
Fukuo Hamaguchi
浜口　福雄
Taiji Ikenaga
池永　泰治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP22944085A priority Critical patent/JPS6289824A/en
Publication of JPS6289824A publication Critical patent/JPS6289824A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE:To make sintered ore quantity in a cooling machine to exactly coincide with th aimed value, by measuring the quantity, and adjusting fed out quantity of sintered ore from the cooling machine while linking with quantity of sintered ore thrown into the cooling machine from the sintering machine. CONSTITUTION:Material fed into a pallet 8 from a surge hopper 5 is passed through the sintering machine 1, made to sintered ore, crushed at a crusher 7, then thrown into a hopper 4, air cooled at the cooling machine 2 and trans ferred out by a feeding out apparatus 3. Thereat, a sintered ore quantity WIN thrown into the machine 2 is obtd. by operation from fed out material quantity from the hopper 5. Sintered ore quantity in the machine 2 is obtd. by measuring sintered ore level in the hopper 4 from obtd. weight of the hopper 4 by a load cell 6. Further, velocity of the apparatus 3 is obtd. by operation according to the quantity WIN and sintered ore quantity in the hopper 4. The number of revolution of the apparatus 3 can be adjusted by inverter. In such a way, by adjusting fed out quantity of sintered ore, quantity of sintered ore in the machine 2 is made coincident with the aimed value.

Description

【発明の詳細な説明】 不発明は焼結鉱冷却機から焼結鉱を切呂す量を調整して
冷却機内の焼結鉱レベルを制御する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The invention relates to a method for controlling the level of sinter in a sinter chiller by adjusting the amount of sinter removed from the chiller.

〔従来の技術〕[Conventional technology]

焼結鉱冷却機から排呂される焼結鉱の量を調整する方法
としては、特開昭５０−１１４８０７号公報に記載され
た方法がある。As a method for adjusting the amount of sintered ore discharged from the sintered ore cooler, there is a method described in JP-A-50-114807.

この方法は、焼結鉱冷却機の排鉱シュート内の焼結鉱重
量を測定し、その測定値に基づき前記排鉱シュートに設
けた振動フィダーの電動機の回転数を変え、コンベア上
に賂々均一に排鉱することを特徴とするものである。This method measures the weight of sintered ore in the ore discharge chute of the sintered ore cooler, changes the rotation speed of the electric motor of the vibrating feeder installed in the ore discharge chute based on the measured value, and increases the amount of sinter on the conveyor. It is characterized by uniform discharge of ore.

しかし、この方法では冷却機内の焼結鉱の量の変動（冷
却機内へ焼結鉱の投入量と冷却機からの排出量のアンバ
ランスによって生じる冷却機内の焼結拡士の変動）を押
えることは不可能であシ、単に排出コンベア上の積載食
が均一化されるに過ぎない。However, with this method, it is difficult to suppress fluctuations in the amount of sintered ore in the cooler (fluctuations in the expansion of sintered ore in the cooler caused by an imbalance between the amount of sintered ore input into the cooler and the amount discharged from the cooler). This is not possible, and merely equalizes the food loaded on the discharge conveyor.

そして、この冷却機内（厳密には冷却機上の受鉱ホッパ
ー）の焼結鉱量の変動（焼結鉱レベルの変動）に起因し
て、次の問題点を生じる。The following problem occurs due to fluctuations in the amount of sintered ore (fluctuations in the level of sintered ore) within the cooler (strictly speaking, the ore receiving hopper on the cooler).

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

（１）冷却機ホッパーの焼結鉱のレベルが上位にあると
きは、焼結鉱の落下距離は短刀）くなり、落下時の衝撃
は小さく焼結鉱の粉化は少ない。(1) When the level of sintered ore in the cooler hopper is at a high level, the falling distance of the sintered ore is short, and the impact when falling is small, and the sintered ore is not pulverized.

また、焼結鉱レベルが下位にあるときは、落下距唯が長
くなり落下時の衝撃が大きくなり、焼結鉱の粉化の度合
も大きくなる。Moreover, when the sintered ore level is low, the falling distance becomes long, the impact upon falling becomes large, and the degree of pulverization of the sintered ore becomes large.

第２図は焼結鉱の落下高さと均発生率の関保を表わす図
である。横軸は落下高さであシ縦軸は粉発生率である。Figure 2 is a diagram showing the relationship between the falling height of sintered ore and the average incidence rate. The horizontal axis is the fall height and the vertical axis is the powder generation rate.

図でわかるように、落下高さが高い程粉発生率は多くな
っている。As can be seen in the figure, the higher the falling height, the higher the powder generation rate.

粉化の度合が変化することは後工程の返ＫＭの変動とな
シ好ましくない。A change in the degree of pulverization is undesirable because it causes a change in the return KM in the subsequent process.

（２１冷却機内の焼結鉱のレベルが極端に上昇すると、
上方にある破砕機等を焼結鉱が押し上げる形となシ破砕
機を損傷しかねない。(21 If the level of sinter in the cooler rises extremely,
The sinter may push up the crusher, etc. located above, which may damage the crusher.

（３）また、冷却機内の焼結鉱レベルが極端に下がると
、冷却排風機による冷却用空気が焼結鉱の層内を通過し
ないで、いわゆる漏風となシ冷却効果が著しく低下し、
冷却機よシ排出される焼結鉱の温度上昇による排鉱側コ
ンベアベルトの焼損事故となる。ま之、冷却用排風機の
動力損失の増加となる。(3) Furthermore, if the level of sintered ore in the cooler drops extremely, the cooling air from the cooling exhaust fan will not pass through the layer of sintered ore, resulting in so-called air leakage, and the cooling effect will be significantly reduced.
The rise in temperature of the sintered ore discharged from the cooler caused a burnout accident on the ore discharge side conveyor belt. However, the power loss of the cooling exhaust fan will increase.

（４）冷却機内の焼結鉱レベルを一定にするためには従
来技術では焼結機の速度を変化させることになシ、焼結
鉱製造条件の変更につながシ品質の低下を招く恐れがあ
る。(4) In order to keep the sintered ore level in the cooler constant, conventional technology does not require changing the speed of the sintering machine, which may lead to changes in the sintered ore production conditions and lead to a decrease in quality. be.

本発明はこれらの問題点を全て解決し得る焼結鉱冷却機
のレベル制御方法を提供しようとするものである。The present invention aims to provide a level control method for a sinter cooler that can solve all of these problems.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的を達成するための本発明の構成を第１図を参照
に説明する。The structure of the present invention for achieving the above object will be explained with reference to FIG.

本発明のレベル制御方法は、焼結鉱冷却機（２１内の焼
結鉱の量を計測し、その目標値との偏差をなくすように
、冷却機（２）からの焼結鉱の切出量を、焼結機（１）
から冷却機（２１へ投入される焼結鉱の量に連動して調
節するものである。The level control method of the present invention measures the amount of sinter in the sinter cooler (21), and cuts out the sinter from the cooler (2) so as to eliminate deviation from the target value. quantity, sintering machine (1)
It is adjusted in conjunction with the amount of sintered ore fed into the cooler (21).

〔作用〕[Effect]

冷却機（２）内、厳密にはそのホッパー（４）内の焼結
鉱の量は、焼結機（１）から冷却機（２１へ投入される
焼結鉱の量と、冷却機（２１から切出される焼結鉱の量
とのバランスによって決まる。不発明のレベル制御方法
では、冷却機（２）への投入量に連動させて冷却機（２
）からの切出量を調節するため、冷却機（２１内の焼結
鉱の量をその目標値に正確に一致させることができる。The amount of sintered ore in the cooler (2), more precisely in its hopper (4), is the amount of sintered ore fed from the sintering machine (1) to the cooler (21) and the amount of sintered ore in the cooler (21). It is determined by the balance with the amount of sinter cut out from the sintered ore.In the uninvented level control method, the amount of sintered ore cut into the cooler (2) is
), the amount of sinter in the cooler (21) can be matched exactly to its target value.

〔実施例〕〔Example〕

能力８，５００′ｒ／ｂの焼結鉱冷却機に本発明制御方
法を実施し之。第１図は本発明の実施態様を示す図であ
る。（１）は焼結機、（２＋は冷却機、（３）は切出装
置、（４）は冷却機のホッパー、（５）はサージホッパ
ー、（６）はロードセル、（７）は破砕機、（８）はパ
レットである。The control method of the present invention was implemented in a sintered ore cooler with a capacity of 8,500'r/b. FIG. 1 is a diagram showing an embodiment of the present invention. (1) is the sintering machine, (2+ is the cooler, (3) is the cutting device, (4) is the hopper of the cooler, (5) is the surge hopper, (6) is the load cell, and (7) is the crusher. , (8) is a palette.

サージホッパー（５）からパレット（８）上に給鉱され
ｔ原料は焼結機（１）を通過して焼結鉱とされる。この
焼結鉱は破砕機（７）にて破砕されｔ後、ホッパー（４
）に投入される。ホッパー（４）内の焼結鉱は冷却機本
体（２）において空冷され、切出装置（３）により外部
へ搬出される。The raw material fed from the surge hopper (5) onto the pallet (8) passes through the sintering machine (1) and is turned into sintered ore. This sintered ore is crushed in a crusher (7) and then crushed in a hopper (4).
). The sintered ore in the hopper (4) is air-cooled in the cooler main body (2), and is transported outside by the cutting device (3).

本発明のレベル制御方法を実施するには、冷却機（２）
に投入される焼結鉱の量と、冷却機（２１内の焼結鉱の
量と、冷却機（２）から切出される焼結鉱の量とを把握
することが必要であシ、更に切出装置（８）はその切出
量を調節できるものでなければならない。この実施例で
は、これらの要求を次のような手段で実現させている。To implement the level control method of the present invention, a cooler (2)
It is necessary to know the amount of sintered ore input into the cooler (21), and the amount of sintered ore cut out from the cooler (2). The cutting device (8) must be capable of adjusting the cutting amount.In this embodiment, these requirements are realized by the following means.

（１）焼結鉱投入量は、サージホッパー（５）の給鉱部
からの原料切出量よシ演算によシ求める。すなわち、切
出量データを焼結機（１）上でトラッキングして冷却Ｒ
（２）のホッパー（４）への投入量を求める。この投入
量には水分のドライ補正、イグニッションロス補正等が
加えられている。(1) The amount of sintered ore input is calculated based on the amount of raw material cut out from the ore feeding section of the surge hopper (5). That is, the cutting amount data is tracked on the sintering machine (1) and the cooling R
Find the amount of (2) charged into the hopper (4). This input amount includes dry moisture correction, ignition loss correction, etc.

（２）冷却機内の焼結鉱の量はロードセルを用い九計測
装置によりホッパー（４）の重量を求め、これからホッ
パー（４）内の焼結鉱レベルを計測する形で求める。(2) The amount of sintered ore in the cooler is determined by determining the weight of the hopper (4) with a measuring device using a load cell, and then measuring the level of sintered ore in the hopper (4).

（３）冷却機（２）からの焼結鉱の切出量は、上記投入
量と冷却機ホッパー（４）内の焼結鉱の量に応じて演算
により切出装置（３）の速度を演算で求め速度制御装置
の設定値とする。詳細は後述する。(3) The amount of sintered ore cut out from the cooler (2) is calculated by controlling the speed of the cutting device (3) according to the above input amount and the amount of sintered ore in the cooler hopper (4). Calculate it and use it as the setting value of the speed control device. Details will be described later.

（４）切出装置（３）は電動機で駆動され、その電動機
は工ＮＶ（インバータ）により回転数を調節できるよう
になっている。(4) The cutting device (3) is driven by an electric motor, and the rotation speed of the electric motor can be adjusted by an inverter.

そうして、（１）〜（４）から焼結鉱の切出量を調節し
、これにより冷却機（２）内の焼結鉱の量を目標値に一
致させるのである。Then, the amount of sintered ore cut out is adjusted based on (1) to (4), thereby making the amount of sintered ore in the cooler (2) match the target value.

ここで、切出装置（３）の設定速度の計算法について述
べておく。Here, a method of calculating the set speed of the cutting device (3) will be described.

この計算はホッパー（４）のレベル偏差がｎｘΔを秒後
に零となるように切出速度を求めるものである。ｎは整
数、△ｔは制御周期である。This calculation is to determine the cutting speed so that the level deviation of the hopper (4) becomes zero after nxΔ seconds. n is an integer, and Δt is a control period.

また、種々の誤差によって生ずるオフセットを取除くた
めホッパーレベルのフィードバック制御演算によシ投入
景を補正する。演算は下記式によった。Furthermore, in order to remove offsets caused by various errors, the projected view is corrected by hopper level feedback control calculations. The calculation was based on the following formula.

Ｗ暉Ｗ工ＮＸ（１＋ＭＵ−０，５）ＸＫｘ（Ｌａｐ　−
Ｌｃｓ　）但し、 Ｗ：現時点から△を秒間に切出される焼結鉱量ＷＩＮ：
［結拡投入量（現時点から△を秒までにホッパーに入る
焼結鉱量） 演算は、サージホッパー（５）から切出された焼結原料
の各パレット（８）単位でトラッキングしていく。ホッ
パー（４）への投入量は冷却機入口近くの制御区間バッ
ファ（Ｎ）（区間の変更可能）の平均とパレット速度か
ら求めた投入原料量に水分のドライ補正、イグニッショ
ンロス（コークス等の燃焼ロス）を補正しｔ量から求め
る。W Kx (Lap -
Lcs) However, W: Amount of sintered ore cut out per second from the current point WIN:
[Amount of sintered ore input (amount of sintered ore that enters the hopper from the current time to △ seconds) The calculation is performed by tracking each pallet (8) of the sintered raw material cut out from the surge hopper (5). The amount of input material into the hopper (4) is determined from the average of the control zone buffer (N) near the cooler inlet (zone can be changed) and the pallet speed, dry moisture correction, ignition loss (combustion of coke, etc.) loss) is corrected and determined from the t amount.

Δを秒：制御周期 Ｌａｐ　：ホッパーレベル測定値 Ｌｃｓ　：ホッパーレベル目標値 ＭＵ：修正係数（フィードバック制御高力）（Ｍｔ＋−
ｏ５の時補正足０） Ｋ　：定数 以上によりｗを求め切出装置（３）の切出速度の目標値
を決定した。Δ in seconds: Control period Lap: Hopper level measured value Lcs: Hopper level target value MU: Correction coefficient (feedback control high force) (Mt+-
When o5, the correction foot is 0) K: W was determined by a constant or more, and the target value of the cutting speed of the cutting device (3) was determined.

〔発明の効果〕〔Effect of the invention〕

本発明制御方法を実施した結果、冷却機のホッパレベル
は均一に保たれ下記効果があった。As a result of implementing the control method of the present invention, the hopper level of the cooler was kept uniform and the following effects were obtained.

（１）ホッパー内の落下高さが均一となシ焼俯鉱の粉発
生率が減少し念。本発明実施ｉＴ後の落下高さと粉発生
率を第１表に示す。(1) The falling height in the hopper is uniform, which reduces the powder generation rate of sintered ore. Table 1 shows the drop height and powder generation rate after iT according to the present invention.

第　　　１　　　表 （２）冷却機の焼結層が均一となり漏風がなくなる。Chapter 1 Table (2) The sintered layer of the cooler becomes uniform, eliminating air leakage.

（３）焼結鉱レベルの上昇により破砕機の故障が従来２
〜３町月あったものが皆無となつ之。(3) Breakdown of crusher due to increase in sinter level
~ Everything that was there for 3 months is now gone.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の実施態様を示す図、第２図は焼結鉱の
落下高さと粉発生率の関係を表わす図である。 図中、１：焼結機、２：冷却機、３：切出装置、４：ホ
ッパー、５：サージホッパー、６：ロードセル、７：破
砕機、８：パレット。 −一◆　落下高さくｍ）FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing the relationship between the falling height of sintered ore and the powder generation rate. In the figure, 1: sintering machine, 2: cooling machine, 3: cutting device, 4: hopper, 5: surge hopper, 6: load cell, 7: crusher, 8: pallet. -1◆ Falling height m)

Claims (1)

【特許請求の範囲】[Claims] （１）焼結鉱冷却機内の焼結拡の量を計測し、その目標
値との偏差をなくすように、冷却機からの焼結鉱の切出
量を、焼結機から冷却機へ投入される焼結拡の量に連動
して調節することを特徴とする焼結鉱冷却機のレベル制
御方法。(1) Measure the amount of sinter expansion in the sintered ore cooler, and feed the amount of sintered ore cut from the cooler into the cooler so as to eliminate the deviation from the target value. A level control method for a sintered ore cooler, characterized in that the level is adjusted in conjunction with the amount of sinter expansion.
JP22944085A 1985-10-14 1985-10-14 Level controlling method for sintered ore cooling machine Pending JPS6289824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22944085A JPS6289824A (en) 1985-10-14 1985-10-14 Level controlling method for sintered ore cooling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22944085A JPS6289824A (en) 1985-10-14 1985-10-14 Level controlling method for sintered ore cooling machine

Publications (1)

Publication Number Publication Date
JPS6289824A true JPS6289824A (en) 1987-04-24

Family

ID=16892252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22944085A Pending JPS6289824A (en) 1985-10-14 1985-10-14 Level controlling method for sintered ore cooling machine

Country Status (1)

Country Link
JP (1) JPS6289824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017048426A (en) * 2015-09-02 2017-03-09 新日鐵住金株式会社 Method for determinating the strength of sintered ore, method for sintering sintered ore, and sintering equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017048426A (en) * 2015-09-02 2017-03-09 新日鐵住金株式会社 Method for determinating the strength of sintered ore, method for sintering sintered ore, and sintering equipment

Similar Documents

Publication Publication Date Title
CN1129484C (en) Crusher and crushing method
CN111515009A (en) Full frequency conversion type pulverizing system without minimum coal quantity limit and debugging method
CN203005829U (en) Unloading device for particle packer
JPS6289824A (en) Level controlling method for sintered ore cooling machine
CN113277331B (en) High-balance storage cabinet discharging method
CN210102765U (en) Spiral lead plaster quantitative feeding device
JP3969695B2 (en) Continuous weight measuring method and continuous weight measuring apparatus
JPH11253832A (en) Controller for pulverizer
KR20030041009A (en) An apparatus for charginh bed ores into a sintering machine
CN113879866B (en) Coal flow conveying method based on traffic flow
JP2961204B2 (en) Rock wool manufacturing equipment
US20230375395A1 (en) Sectoral load measurement
KR20200008861A (en) Processing apparatus for raw material and method for processing raw material
KR20040051145A (en) A Method for Controlling the Supply of Sinter Cake for Furnace
JP3209029B2 (en) Granulation method of sintering raw material
JPS61279636A (en) Charging apparatus of sintered ore cooling machine
JPS6137903A (en) Method for controlling discharge of starting material to be charged into blast furnace
JPH06226125A (en) Crushing of water-granulated slag
JPH0499135A (en) Method for controlling sintering of calcined lump ore
JPH0873951A (en) Production of sintered ore
JPS5938289B2 (en) Method for producing sintered ore
JPH05272872A (en) Control device for feed amount of sintering material
SU446309A1 (en) The method of automatic control of the process gas-grinding
JPH02194128A (en) Method for operating sintering machine
JPS6246444Y2 (en)