JPH04335989A - Method and apparatus for controlling mean staying time of rotary kiln - Google Patents
Method and apparatus for controlling mean staying time of rotary kilnInfo
- Publication number
- JPH04335989A JPH04335989A JP13561691A JP13561691A JPH04335989A JP H04335989 A JPH04335989 A JP H04335989A JP 13561691 A JP13561691 A JP 13561691A JP 13561691 A JP13561691 A JP 13561691A JP H04335989 A JPH04335989 A JP H04335989A
- Authority
- JP
- Japan
- Prior art keywords
- rotary kiln
- raw material
- target
- supply amount
- residence time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 17
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims description 42
- 238000010304 firing Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 4
- 238000005303 weighing Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000013077 target material Substances 0.000 abstract 1
- 239000008188 pellet Substances 0.000 description 10
- 239000000700 radioactive tracer Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はセラミックスや鉄鋼原料
などのペレット及び粉体を焼成するロータリーキルンの
平均滞留時間の制御に係る技術である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for controlling the average residence time of a rotary kiln for firing pellets and powders of ceramics, steel raw materials, etc.
【０００２】0002
【従来の技術】ロータリーキルンは直径数１０センチメ
ートル〜数メートル、長さ数メートル〜数十メートルの
筒体を炉体とし、水平より僅かに傾けた姿勢で回転させ
、原料の粉体を傾いた上方から供給して炉内で回動運動
を与えつつ加熱焼成し傾いた下方から焼成品として排出
回収するものである。炉内へ供給された原料は攪拌と混
合を繰り返しつつ徐々に炉内を下降し排出口に到達した
ときには焼成された状態となっていなければならないか
ら炉内に滞留して加熱を受ける時間は焼成品の品質を左
右する非常に重要な要素である。しかも炉内での粉体の
挙動は全体が一律に揃った状態で進むとは限らず、炉内
滞留時間も常時一定に管理することは難しいから、品質
を維持するうえで益々この炉内の平均滞留時間の測定と
その調整は重要な管理目標となる。操炉管理の第一歩と
しては目標平均滞留時間（以下「目標時間」という）を
設定しなければならないが、このロータリーキルンで焼
成する原料の材質固有の焼成温度およびその所要時間を
実際にテストして最良の焼成品が経済的に得られる目標
時間を選び出す。目標時間が定まると当該ロータリーキ
ルンの保有率（キルン内容積に対して原料容積の占める
割合。通常は１０〜２０％程度が望ましい）を決め最適
と思われる運転計画を立案する。すなわち、[Prior Art] A rotary kiln has a cylindrical body with a diameter of several tens of centimeters to several meters and a length of several meters to several tens of meters.The rotary kiln is rotated in an attitude slightly tilted from horizontal, and the raw material powder is tilted. The material is supplied from above, heated and fired in a furnace while being rotated, and discharged and recovered as a fired product from an inclined downward direction. The raw materials supplied into the furnace gradually descend through the furnace while repeating stirring and mixing, and by the time they reach the discharge port they must be in a fired state. This is a very important element that affects the quality of the product. Moreover, the behavior of the powder in the furnace does not always proceed in a uniform manner, and it is difficult to control the residence time in the furnace at a constant rate. Measuring and adjusting average residence time is an important management objective. As the first step in furnace operation management, it is necessary to set a target average residence time (hereinafter referred to as "target time"), but it is important to actually test the firing temperature and time required for each raw material to be fired in this rotary kiln. and select a target time that will economically yield the best fired product. Once the target time is determined, the holding ratio of the rotary kiln (ratio of the raw material volume to the internal volume of the kiln; usually about 10 to 20% is desirable) is determined, and an operation plan considered to be optimal is drawn up. That is,
【数１】
によって原料の目標供給量（以下「目標供給量」という
）を算出する。また、キルン回転数はキルン全長に比例
し、キルンの傾斜角度，キルン内径，目標時間の三者の
積に反比例する関係にあり、経験的に比例定数Ｋを仮定
して計算する。このように運転諸元をそれぞれ決定して
運転を始めるが、ここで供給した原料が実際にどれだけ
炉内に滞留して排出してくるか、すなわち実際平均炉内
滞留時間（以下「実際時間」という）が問題となる。
当然、実際時間を計測して目標時間との間に差があれば
速やかに運転条件を是正して両者を近づけなければ目標
の焼成品品質が得られない。The target supply amount of raw materials (hereinafter referred to as "target supply amount") is calculated by [Equation 1]. Further, the kiln rotation speed is proportional to the total length of the kiln and inversely proportional to the product of the kiln inclination angle, the kiln inner diameter, and the target time, and is calculated empirically assuming a proportionality constant K. In this way, each operating specification is determined and operation is started, but at this point, it is necessary to determine how much of the supplied raw material actually stays in the furnace and is discharged, that is, the actual average residence time in the furnace (hereinafter referred to as "actual time"). ) is a problem. Naturally, if the actual time is measured and there is a difference between the target time and the target time, the target fired product quality cannot be obtained unless the operating conditions are promptly corrected to bring the two closer together.
【０００３】従来、ロータリーキルンにおける原料の実
際時間の測定はトレーサを使う方法が用いられていた。
例えば、アルミナを球状としたアルミナペレットやＲＩ
（放射性同位元素）を混合したペレットをトレーサとし
て原料である生ペレットとともにロータリーキルンに装
入し、それらが排出されるまでの時間を測定する方法で
ある。またアルミナペレットやＲＩペレットに代って酸
化ペレットをトレーサとして使用する改良技術も提案さ
れている。（特開昭５９−１８３２８６号公報）トレー
サを使わないで原料の実際時間を測定する別の方法とし
てはサンプリングの計量による方法がある。これは例え
ば、図３に示すように実際の原料供給量（以下「実際供
給量」という）Ｑ１ と実際の焼成品排出量Ｐを一定時
間ごとに計量し、その結果を累積して時間の経過とそれ
ぞれの積算値をプロットした関係図表を作成し、たとえ
ば原料供給後ｔ（分）経過後における原料の実際時間を
水平に伸ばした長さＴとして知ることができる。Conventionally, a method using a tracer has been used to measure the actual time of raw materials in a rotary kiln. For example, alumina pellets made of spherical alumina or RI
In this method, pellets mixed with (radioactive isotope) are charged into a rotary kiln together with raw pellets as a tracer, and the time until they are discharged is measured. An improved technique has also been proposed in which oxide pellets are used as tracers instead of alumina pellets or RI pellets. (Japanese Unexamined Patent Publication No. 59-183286) Another method of measuring the actual time of raw materials without using a tracer is a method of measuring sampling. For example, as shown in Figure 3, the actual raw material supply amount (hereinafter referred to as "actual supply amount") Q1 and the actual fired product output amount P are measured at regular intervals, and the results are accumulated over time. A relational chart is created in which the integrated values are plotted, and the actual time of the raw material after t (minutes) has elapsed since the raw material was supplied can be known as the horizontal length T.
【０００４】0004
【発明が解決しようとする課題】従来の実際時間を測定
する方法は以上に述べたようにトレーサによるかサンプ
リングによる方法が主流を占めるが、トレーサの場合は
炉内を供給された原料と同じ条件で移動して排出されな
ければ測定の意味がない。そのためペレット焼結を目的
とする炉に対しては生ペレットとほぼ類似の大きさや比
重を持ったトレーサを使用しなければならないが、よく
類似しているほど排出口で的確に捉えて測定時間のデー
タとすることは相当に困難である。排出されるトレーサ
を見逃して測定結果の信頼性を著しく損なうことは往々
にして見られることで、紛らわしいトレーサを測定の対
象とする場合の避け難い課題である。また焼成の対象が
ペレットでなくセラミックスのように粉体の場合には粉
体のトレーサというものは考え難くこの方法の限界を示
している。サンプリングによる方法は直接、単位時間当
りの原料供給量を累積し、同様に焼成品排出量も累積し
、両者の関係から平均の炉内滞留時間を知るものである
から、前者のように見落しなどのミスの入る余地は少な
いが、この計測のため専従の作業者が常にデータを読取
り、その結果を図表化して実際時間を計算しなければな
らず、極めて煩瑣でかつ計量器の読取りミスや計算ミス
を犯しやすい作業である。また、実際時間と目標時間と
の間に差を見出したときは直ちに運転条件を修正しなけ
ればならないが、この修正は過去の豊富な経験が裏付け
られていないと的確には実行できないから、作業者個人
の熟練度が前提として求められる。[Problems to be Solved by the Invention] As mentioned above, the conventional methods of measuring actual time are mainly based on tracers or sampling, but in the case of tracers, the conditions are the same as the raw materials supplied inside the furnace. There is no point in measuring unless it moves and is ejected. Therefore, for a furnace intended for pellet sintering, it is necessary to use a tracer with a size and specific gravity that is almost similar to that of the raw pellets, but the more similar the tracer, the more accurately the tracer can be captured at the discharge port, and the measurement time can be reduced. It is quite difficult to convert it into data. It is often seen that discharged tracers are overlooked and the reliability of measurement results is significantly impaired, which is an unavoidable problem when measuring confusing tracers. Furthermore, if the object to be fired is not a pellet but a powder such as a ceramic, it is difficult to imagine a tracer for the powder, which shows the limitations of this method. The sampling method directly accumulates the amount of raw materials supplied per unit time, as well as the amount of fired products discharged, and the average residence time in the furnace can be determined from the relationship between the two, so there is no possibility of oversight like the former. However, for this measurement, a dedicated worker must constantly read the data, graph the results, and calculate the actual time, which is extremely cumbersome and prone to errors in reading the measuring instrument. This is a task where it is easy to make calculation errors. Additionally, when a difference is found between the actual time and the target time, the operating conditions must be corrected immediately, but this correction cannot be carried out accurately unless it is supported by extensive past experience. The level of proficiency of the individual is required as a prerequisite.
【０００５】本発明は以上に述べた課題を解決するため
に、あらかじめ特定の炉で特定の原料を焼成する場合の
最良条件を設定しておき、実際の運転に当ってこの条件
と速やかに一致するように自動制御を行う方法と装置の
提供を目的とする。In order to solve the above-mentioned problems, the present invention sets in advance the best conditions for firing a specific raw material in a specific furnace, and quickly matches these conditions during actual operation. The purpose of the present invention is to provide a method and device for automatically controlling the
【０００６】[0006]
【課題を解決するための手段】本発明に係るロータリー
キルンの平均滞留時間の制御方法は、あらかじめ確認し
た当該ロータリーキルンにおける当該原料の材質に固有
な目標時間と、当該時間を得るために必要な目標供給量
を算出し、実際の原料供給がはじまると実量を計測しつ
つ目標の供給量と比較して標準へ限りなく接近する供給
量調整を行い、焼成品の排出がはじまると計測した排出
量を積算して前記実際供給量の積算値とから現在の実際
時間を演算し、得られた実際時間を目標時間と比較して
目標へ限りなく接近するようにロータリーキルンの回転
数を増減することによって前記の課題を解決した。また
、この制御方法を実施するために使用する制御装置とし
ては、ロータリーキルンの原料供給機と焼成品排出機に
それぞれ計量器を具え、検知された時間当りの原料供給
量とロータリーキルンの回転数を入力し、比較と演算を
加えて時間当りの原料供給量とロータリーキルンの回転
数の増減を指示する信号をそれぞれの駆動源へ発信する
制御装置を結合した構成を開示した。[Means for Solving the Problems] The method for controlling the average residence time of a rotary kiln according to the present invention includes a previously confirmed target time specific to the material of the raw material in the rotary kiln, and a target supply necessary to obtain the time. When the actual raw material supply begins, the actual amount is measured and compared with the target supply amount to adjust the supply amount as close to the standard as possible, and when the discharge of fired products begins, the measured discharge amount is calculated. The current actual time is calculated from the integrated value of the actual supply amount, and the obtained actual time is compared with the target time and the rotation speed of the rotary kiln is increased or decreased so as to approach the target as much as possible. The problem was solved. In addition, the control device used to implement this control method is equipped with measuring instruments for the raw material feeder and baked product discharger of the rotary kiln, and inputs the detected amount of raw material supplied per hour and the rotation speed of the rotary kiln. The present invention also discloses a configuration in which a control device is combined that performs comparison and calculation and sends signals to each drive source to instruct an increase/decrease in the amount of raw material supplied per hour and the number of revolutions of the rotary kiln.
【０００７】[0007]
【作用】本発明に係るロータリーキルンについても基本
的な初期条件の設定方法は従来と同様に、焼成される材
料の材質固有の焼成温度から目標時間Ｔ０を決定しキル
ン内の保有率から目標供給量Ｑ０ を求め係数Ｋを仮定
して一応キルン回転数Ｒ１を定める。従来の運転では原
料供給およびキルン回転の駆動モータ回転数を固定し、
焼成品排出量を人手で時間ごとにサンプリングして実際
時間Ｔ１ を求めていたが、本発明では実際供給量Ｑ１
を自動的に検知してＱ０ とＱ１ との差があればこ
れを一致させる方向に繰り返し原料供給の駆動源に回転
数変更の信号を発する。これによって時間制御の基礎条
件となるキルン負荷の安定をまず確保する。焼成品排出
が始ると排出量Ｐ１ を自動的に検知してＱ１ とＰ１
とから実際時間Ｔ１ を算出し、Ｔ０ とＴ１ との
間に差のあるときはＴ１ がＴ０ と一致するように繰
り返しロータリーキルンの回転数Ｒ１ を増減して Ｔ
１＝Ｔ０ となるような回転数Ｒ０ を見出して運転を
続ける。以下この制御を定時間ごとに繰り返して運転停
止まで全ての時間中、最適とされる運転条件を自動的に
コントロールする。[Operation] The basic initial condition setting method for the rotary kiln according to the present invention is the same as the conventional method.The target time T0 is determined from the firing temperature specific to the material to be fired, and the target supply amount is determined from the retention rate in the kiln. After finding Q0 and assuming the coefficient K, the kiln rotation speed R1 is tentatively determined. In conventional operation, the rotation speed of the drive motor for raw material supply and kiln rotation is fixed.
The actual time T1 was obtained by manually sampling the discharge amount of fired products every hour, but in the present invention, the actual supply amount Q1
is automatically detected, and if there is a difference between Q0 and Q1, a signal is repeatedly issued to the drive source for supplying the raw material to change the rotation speed in a direction to make them match. This first ensures the stability of the kiln load, which is the basic condition for time control. When the discharge of fired products starts, the discharge amount P1 is automatically detected and Q1 and P1 are
Calculate the actual time T1 from , and if there is a difference between T0 and T1, repeatedly increase or decrease the rotation speed R1 of the rotary kiln so that T1 matches T0.
Find a rotational speed R0 that satisfies 1=T0 and continue operation. Thereafter, this control is repeated at regular intervals to automatically control the optimal operating conditions for the entire time until the operation is stopped.
【０００８】[0008]
【実施例】図１は本発明のハードウェアを示す。ロータ
リーキルン１は変速モータ１１によってローラ１２上を
緩急自在に回転する。ロータリーキルン１は僅かに水平
より傾いた軸線をもち、上方に原料の供給口１３を、ま
た下方に焼成品の排出口１４をそれぞれ具えている。原
料供給機２は変速モータ２１の回転によって原料を定量
づつ切り出して供給口１３へ供給する。原料供給機の底
部に計量器としてロードセル２２を装着する。またロー
タリーキルンの排出口１４の下部に焼成品を受入れる排
出槽３を具え、この底部にもロードセル３１を装着する
。このロータリーキルンを制御するパーソナルコンピュ
ータ４と各構成部材との間で交わされる情報としてのパ
ーソナルコンピュータへの入力信号はモータ１１の回転
数Ｒ１ 、原料供給機のロードセル２２からの刻々減少
する計量信号、排出槽のロードセル３１から刻々増加す
る計量信号である。パーソナルコンピュータ内の演算に
よってロードセル２２の計量信号から実際供給量Ｑ１
、ロードセル３１の計量信号から実際の焼成品排出量Ｐ
１ 、実際供給量Ｑ１ と実際排出量Ｐ１ とからロー
タリーキルン内の保有原料の量とその実際時間とを得る
。パーソナルコンピュータは事前に入力されている目標
供給量と実際供給量、目標時間と実際時間とをそれぞれ
対比して各構成部材を制御する出力信号を発する。すな
わち、ロータリーキルンの変速モータへ回転数Ｒの増減
、原料供給機の変速モータ２１へ回転数Ｍ１ の増減で
ある。図１のうち細い破線は前記の入力、太い破線は前
記の出力を伝達する系路をそれぞれ示している。図２は
いままで説明したパーソナルコンピュータ４内における
情報の伝達と内部における作用を示したフローチャート
を示したものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the hardware of the present invention. The rotary kiln 1 is rotated slowly and rapidly on rollers 12 by a variable speed motor 11. The rotary kiln 1 has an axis slightly inclined from the horizontal, and has a raw material supply port 13 at the top and a fired product discharge port 14 at the bottom. The raw material feeder 2 cuts out the raw material in fixed quantities and supplies it to the supply port 13 by rotating the variable speed motor 21 . A load cell 22 is attached to the bottom of the raw material feeder as a measuring device. Further, a discharge tank 3 for receiving the fired product is provided below the discharge port 14 of the rotary kiln, and a load cell 31 is also attached to the bottom of this discharge tank 3. Input signals to the personal computer as information exchanged between the personal computer 4 that controls the rotary kiln and each component include the rotational speed R1 of the motor 11, the ever-decreasing weighing signal from the load cell 22 of the raw material feeder, and the discharge This is a measurement signal that increases every moment from the load cell 31 of the tank. The actual supply amount Q1 is determined from the weighing signal of the load cell 22 by calculation in the personal computer.
, the actual amount of fired product discharged P from the measurement signal of the load cell 31
1. Obtain the amount of raw material held in the rotary kiln and its actual time from the actual supply amount Q1 and the actual discharge amount P1. The personal computer compares the target supply amount and the actual supply amount, and the target time and the actual time, which have been input in advance, and generates output signals for controlling each component. That is, the rotation speed R of the variable speed motor of the rotary kiln is increased or decreased, and the rotation speed M1 of the variable speed motor 21 of the raw material feeder is increased or decreased. In FIG. 1, thin broken lines indicate the inputs, and thick broken lines indicate the paths for transmitting the outputs. FIG. 2 shows a flowchart showing information transmission and internal operations within the personal computer 4 described above.
【０００９】[0009]
【発明の効果】本発明に係るロータリーキルンの平均滞
留時間の制御方法とその装置は、従来熟練した作業者が
専従して運転状態を計測し、手作業によって最良の結果
が得られるように計器の読み取りと装置の操作を行って
いたのに対し、自動的に最適条件で運転が継続するよう
に改めた。もちろん省人化の効果も大きいが人為的なミ
スに伴う品質上のばらつきが解消して信頼性を高め安定
した操業を保障することが何より大きな効果であるとい
える。Effects of the Invention The method and device for controlling the average residence time of a rotary kiln according to the present invention is a method for controlling the average residence time of a rotary kiln, in which conventionally skilled workers are dedicated to measuring the operating conditions, and the instruments are adjusted manually to obtain the best results. Instead of reading and operating the device, the system now automatically continues operation under optimal conditions. Of course, the effect of labor saving is significant, but the greatest effect can be said to be that it eliminates variations in quality due to human error, increases reliability, and guarantees stable operations.
【図１】本発明のハードウェアの実施例を示す。FIG. 1 shows a hardware embodiment of the invention.
【図２】同実施例のパーソナルコンピュータにおけるフ
ローチャートを示す。FIG. 2 shows a flowchart in the personal computer of the same embodiment.
【図３】実際の平均炉内滞留時間を計算する方法を示す
図表である。FIG. 3 is a chart showing a method for calculating the actual average residence time in the furnace.
１ ロータリーキルン
２ 原料供給機
３ 排出槽
４ パーソナルコンピュータ
１１ 変速モータ
１２ ローラ
１３ 供給口
１４ 排出口
２１ 変速モータ
２２ ロードセル
３１ ロードセル
Ｔ０ 目標平均炉内滞留時間（目標時間）Ｔ１ 実際平
均炉内滞留時間（実際時間）Ｑ０ 目標原料供給量（目
標供給量）
Ｑ１ 実際原料供給量（実際供給量）
Ｒ１ ロータリーキルン回転数
Ｒ０ ロータリーキルン回転数（Ｔ０＝Ｔ１のとき）Ｍ
１ 原料供給機の変速モータ回転数
Ｍ０ 原料供給機の変速モータ回転数（Ｑ０＝Ｑ１のと
き）Ｐ 焼成品排出量1 Rotary kiln 2 Raw material feeder 3 Discharge tank 4 Personal computer 11 Variable speed motor 12 Roller 13 Supply port 14 Discharge port 21 Variable speed motor 22 Load cell 31 Load cell T0 Target average furnace residence time (target time) T1 Actual average furnace residence time (actual time) Q0 Target raw material supply amount (target supply amount) Q1 Actual raw material supply amount (actual supply amount) R1 Rotary kiln rotation speed R0 Rotary kiln rotation speed (when T0 = T1) M
1 Rotation speed of variable speed motor of raw material feeder M0 Speed of variable speed motor of raw material feeder (when Q0=Q1) P Discharge amount of fired products
Claims (2)
おいてあらかじめ確認した当該ロータリーキルンにおけ
る当該原料の材質に固有な目標平均炉内滞留時間と、当
該時間を得るために必要な目標原料供給量を算出し、実
際の原料供給がはじまると実量を計測しつつ目標の供給
量と比較して標準へ限りなく接近する供給量調整を行い
、焼成品の排出がはじまると計測した排出量を積算して
前記原料供給量の積算値とから現在の平均炉内滞留時間
を演算し、得られた平均炉内滞留時間を目標平均炉内滞
留時間と比較して目標へ限りなく接近するようにロータ
リーキルンの回転数を増減することを特徴とするロータ
リーキルンの平均滞留時間の制御方法。Claim 1: When firing raw materials in a rotary kiln, calculate the target average residence time in the furnace specific to the material of the raw material in the rotary kiln, which has been confirmed in advance, and the target raw material supply amount necessary to obtain the time, and calculate the actual When raw material supply begins, the actual amount is measured and compared with the target supply amount to adjust the supply amount as closely as possible to the standard. When the discharge of fired products begins, the measured discharge amount is integrated to determine the raw material supply amount. Calculate the current average residence time in the furnace from the integrated value of , compare the obtained average residence time in the furnace with the target average residence time in the furnace, and increase or decrease the rotation speed of the rotary kiln so as to get as close to the target as possible. A method for controlling average residence time in a rotary kiln, characterized in that:
品排出機にそれぞれ計量器を具え、検知された時間当り
の原料供給量とロータリーキルンの回転数を入力し、比
較と演算を加えて時間当りの原料供給量とロータリーキ
ルンの回転数の増減を指示する信号をそれぞれの駆動源
へ発信する制御装置を結合したことを特徴とするロータ
リーキルンの平均滞留時間の制御装置。Claim 2: The rotary kiln's raw material supply machine and baked product discharge machine are each equipped with a measuring device, and the detected raw material supply amount per hour and the rotation speed of the rotary kiln are inputted, and comparison and calculations are performed to calculate the raw material per hour. A control device for the average residence time of a rotary kiln, comprising a control device for transmitting signals instructing increases and decreases in supply amount and rotary kiln rotational speed to respective drive sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13561691A JPH0743220B2 (en) | 1991-05-11 | 1991-05-11 | Method and device for controlling average residence time of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13561691A JPH0743220B2 (en) | 1991-05-11 | 1991-05-11 | Method and device for controlling average residence time of rotary kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04335989A true JPH04335989A (en) | 1992-11-24 |
| JPH0743220B2 JPH0743220B2 (en) | 1995-05-15 |
Family
ID=15155975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13561691A Expired - Fee Related JPH0743220B2 (en) | 1991-05-11 | 1991-05-11 | Method and device for controlling average residence time of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0743220B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100455086B1 (en) * | 1999-12-14 | 2004-11-06 | 주식회사 포스코 | A method for granulating a pseudo-particle a in sintered process |
| JP2011501704A (en) * | 2007-10-02 | 2011-01-13 | ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニム | Assembly of concrete reinforcement and markers |
| JP2011075195A (en) * | 2009-09-30 | 2011-04-14 | Jfe Steel Corp | Clogging detecting method and control method for rotary kiln |
| JP2021532264A (en) * | 2018-07-31 | 2021-11-25 | テノヴァ エッセ． ピ． ア． | A device for measuring and controlling the charged material supplied into the furnace. |
-
1991
- 1991-05-11 JP JP13561691A patent/JPH0743220B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100455086B1 (en) * | 1999-12-14 | 2004-11-06 | 주식회사 포스코 | A method for granulating a pseudo-particle a in sintered process |
| JP2011501704A (en) * | 2007-10-02 | 2011-01-13 | ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニム | Assembly of concrete reinforcement and markers |
| JP2011075195A (en) * | 2009-09-30 | 2011-04-14 | Jfe Steel Corp | Clogging detecting method and control method for rotary kiln |
| JP2021532264A (en) * | 2018-07-31 | 2021-11-25 | テノヴァ エッセ． ピ． ア． | A device for measuring and controlling the charged material supplied into the furnace. |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0743220B2 (en) | 1995-05-15 |
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