JPS5978711A - Controlling method of water spraying bank - Google Patents
Controlling method of water spraying bankInfo
- Publication number
- JPS5978711A JPS5978711A JP57190306A JP19030682A JPS5978711A JP S5978711 A JPS5978711 A JP S5978711A JP 57190306 A JP57190306 A JP 57190306A JP 19030682 A JP19030682 A JP 19030682A JP S5978711 A JPS5978711 A JP S5978711A
- Authority
- JP
- Japan
- Prior art keywords
- bank
- water injection
- slab
- time
- output
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims description 7
- 238000005507 spraying Methods 0.000 title abstract 10
- 230000004044 response Effects 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims description 90
- 239000007924 injection Substances 0.000 claims description 90
- 230000001133 acceleration Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
- B21B37/76—Cooling control on the run-out table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B2001/028—Slabs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はホットストリップ圧延等においで温度制御を行
なう注水バンク列の制御方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a control system for water injection bank arrays for temperature control in hot strip rolling and the like.
ホットミル圧延においては、スラブの走行方向に沿って
複数個の注水バンクを配置し、注水バンクを開閉するこ
とにより、スラブの自動温度制御を行なっている。In hot mill rolling, a plurality of water injection banks are arranged along the running direction of the slab, and automatic temperature control of the slab is performed by opening and closing the water injection banks.
この場合、スラブの走行距離をパルスジェネレータによ
って測定して、一定走行距離ごとに割込み信号を計算機
に入力し、注水バンクの開閉タイミングを計算して注水
バンクの開閉を指令している。ここで、割込み信号間の
スラブ走行距離はセグメント長と呼ばれ、通常数ｍ〜１
ｏ数ｍとされている。In this case, the distance traveled by the slab is measured by a pulse generator, and an interrupt signal is input into the computer every fixed distance traveled, and the opening/closing timing of the water injection bank is calculated and commands are given to open and close the water injection bank. Here, the slab travel distance between interrupt signals is called the segment length, and is usually several meters to 1
It is said that there are several m.
スラブの単位長さ当りの必要注水ｔＮｔ［、スラブ厚Ｈ
、スラブ仕上目標温度−１仕上入側温度Ｔｎ、水温Ｔｗ
、スラブ材質による変化量ｒの関数であり２次式によっ
て示されるＣ
Ｎｔ＝＝ｆ（Ｈ，Ｔｍ、Ｔｎ、Ｔｗ、ｒ）［：Ｎｍ５Ａ
ｎ〕＋＋＋ （１）また、各注水バンクの単位時間注
水量にはばらつきがあり、普通テーブル値として記憶さ
れているが、第１番目のバンクの単位時間当りの注水量
をｎｉ［Ｎｍ ／ｌ ］ 、 スラブ速度をｖ〔ｍ／ｌ
〕とすると。Required water injection per unit length of slab tNt[, slab thickness H
, slab finishing target temperature - 1 finishing entrance temperature Tn, water temperature Tw
, is a function of the amount of change r due to the slab material, and is expressed by the quadratic equation.
n] +++ (1) Also, there are variations in the water injection amount per unit time for each water injection bank, and it is usually stored as a table value, but the water injection amount per unit time for the first bank is ni[Nm /l ], the slab speed is v [m/l
].
ＮＴ＝Ｘｎｌ／ｖ ［：Ｎｍ”／ｍ） ”・
（２）となるように、注水バンクを開閉制御することに
より、スラブ温度を目的とする仕上温度に冷却するＯ
〔背景技術の問題点〕
スラブ速度が一定の場合には上述の制御方法で問題を生
ずることはないが、スラブ速度が加減速する圧延工程に
おいては、バンク列の後半でスラブ速度が初期値として
計算した値から大きくずれるため、温度誤差を生ずる。NT=Xnl/v [:Nm”/m) ”・
(2) By controlling the opening and closing of the water injection bank, the slab temperature is cooled to the desired finishing temperature. However, in a rolling process where the slab speed is accelerated or decelerated, the slab speed in the latter half of the bank row deviates greatly from the value calculated as the initial value, resulting in a temperature error.
また、電気的なオン・オフ指令に対して注水バンクが実
際に注水を開始または停止するのけ機械的応答遅れのた
めかなりの時間を経過した後となり、その間における各
バンクの機械的変化や水圧等の環境条件の変化により、
注水量に大きな誤差を生ずるという不都合がある。In addition, due to mechanical response delays, it takes a considerable amount of time for the water injection banks to actually start or stop water injection in response to electrical on/off commands, and mechanical changes in each bank and water pressure during that time may occur. Due to changes in environmental conditions such as
This has the disadvantage of causing a large error in the amount of water injected.
このように、背景技術においては、スラブの注水バンク
通過時間と注水バンクの応答時間を関連づけて制御して
いなかったため、同一スラブ内においても、大きな温度
むらを生ずるという欠点があった。As described above, in the background art, since the passage time of the slab through the water injection bank and the response time of the water injection bank are not controlled in relation to each other, there is a drawback that large temperature irregularities occur even within the same slab.
本発明は背珠技術におけろ上述の如き不都合を除去すべ
くなされたもので、温ＩＷむらを低減させ、また計算機
の負荷を軽減させろこと１によってきめ細かな温度制御
を可能にした注水バンク制御方式な払′供することを目
的とする。The present invention was made in order to eliminate the above-mentioned disadvantages in the back beads technology, and it reduces temperature IW unevenness and reduces computer load.1. Water injection bank control that enables fine temperature control. The purpose is to provide a formal payment.
本発明の注水バンク制菌方式はスラブのセグメント長毎
にバンク通過時間を計算し、この通過時間と単位時間バ
ンク注水量記憶装置の出力に基いてセグメント長毎の必
要注水量を計算し、注水バンク開閉指令装置と注水者検
出装置の出方に基いテ各バンクの応答遅れ時間をリアル
タイムで１ｌｌｌＪ 定演算し、この応答遅れ時間分だ
け先行してバンク開閉指令を出力することを主たる特徴
とするものである。The water injection bank sterilization method of the present invention calculates the bank passage time for each segment length of the slab, calculates the required water injection amount for each segment length based on this passage time and the output of the unit time bank water injection amount storage device, and then The main feature is that the response delay time of each bank is calculated in real time based on the output of the bank opening/closing command device and the water injector detection device, and the bank opening/closing command is output in advance by this response delay time. It is something to do.
以下、図面を参照して本発明の詳細な説明する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図は、仕上ストリップミルの最終段ミルである圧延
ミル１によりスラブ２を圧延し、これを多数の注水バン
ク列３からの注水によって冷却するシステムに本発明を
適用する例を示すもので。FIG. 1 shows an example in which the present invention is applied to a system in which a slab 2 is rolled by a rolling mill 1, which is the final stage mill of a finishing strip mill, and is cooled by water injection from a large number of water injection bank rows 3. .
圧延ミル１に連動するパルスジェネレ−４４ｔｒ、を圧
延ミル１の回転に応じて所定のパルスを割込み制御装置
５へ伝える。この割込み制御装置はパルスジェネレータ
４からのパルス数をカウントすることにより、スラブ２
の走行距離を演算し、スラブが予め設定した注水制御ス
ラブ長（セグメント長）を走行す７１度毎に割込み信号
を出力し、そのタイミング毎に演算を行ない、注水バン
ク列３の開閉制御を行／、Ｃう。A pulse generator 44tr interlocked with the rolling mill 1 transmits predetermined pulses to the interrupt control device 5 in accordance with the rotation of the rolling mill 1. This interrupt control device controls the slab 2 by counting the number of pulses from the pulse generator 4.
calculates the traveling distance of the slab, outputs an interrupt signal every 71 degrees when the slab travels the preset water injection control slab length (segment length), performs calculations at each timing, and controls the opening and closing of the water injection bank row 3. /, C.
スラブ加速パターン計算装置ｉｔ６は、圧延されるスラ
ブ２の仕上目標厚、仕上目標温度、スラブ長および鋼種
区分等に応じて加速パターン記憶装置７から所定の加速
パターンを選択し、それを読込んで圧延ミル１を速度制
御すると共に実績値により加速パターン記憶装置７の記
憶内容を補正するースラブ加速パターン計算装置６の出
力はバンク通過時刻計算装置８にも入力される。このバ
ンク通過時刻計算装置の出力ｉｔは単位時間バンク注水
量記憶袋ｊρ９の出力ｎｉと共に、バンク注水附計算装
置１０に入力され、ｉた、このバンク注水綱°計算装置
の出力Ｎｉはスラブ注水母計′Ｗ、装置１１の出力Ｎｔ
と共に、開バンク選択計算装置１２に入力され、その計
算結果は開バンクパターン記憶装置１３に−月記憶され
た後、バンク通過時刻計算装置ｉｔ ８の出力ｔｌと共
に注水バンク開閉決定演算装置１４に入力される。The slab acceleration pattern calculation device it6 selects a predetermined acceleration pattern from the acceleration pattern storage device 7 according to the target finish thickness, target finish temperature, slab length, steel type classification, etc. of the slab 2 to be rolled, reads it, and performs rolling. The speed of the mill 1 is controlled and the contents stored in the acceleration pattern storage device 7 are corrected based on actual values.The output of the slab acceleration pattern calculation device 6 is also input to the bank passage time calculation device 8. The output it of this bank passage time calculation device is inputted to the bank water injection calculation device 10 together with the output ni of the unit time bank water injection amount storage bag jρ9, and the output Ni of this bank water injection line calculation device is Total 'W, output Nt of device 11
At the same time, the calculation result is inputted to the open bank selection calculation device 12, and the calculation result is stored in the open bank pattern storage device 13, and then inputted to the water injection bank opening/closing determination calculation device 14 together with the output tl of the bank passage time calculation device it8. be done.
注水バンク開閉決定演算装置１４は後述するように、注
水パターン、スラブのバンク通過時刻、注水バンクの応
答遅れに基いて、注水バンクの開閉を決定し、注水バン
ク開閉指令装置１５に向けて開閉指令を出力する。この
開閉指令を受けると注水バンク開閉指令装置１５は注水
指令信号ＲＬを出力し、所定の注水バンク３の配管中に
設けた電磁弁１６を開閉させる。As described later, the water injection bank opening/closing decision calculation device 14 determines whether to open or close the water injection bank based on the water injection pattern, the time when the slab passes through the bank, and the response delay of the water injection bank, and sends an opening/closing command to the water injection bank opening/closing command device 15. Output. Upon receiving this opening/closing command, the water injection bank opening/closing command device 15 outputs a water injection command signal RL to open and close the solenoid valve 16 provided in the piping of a predetermined water injection bank 3.
各注水ノ５ンク３からの注水流量は流着計１７によって
検出され、注水量検出装置１８に入力される。The water injection flow rate from each water injection tank 3 is detected by a flow meter 17 and inputted to a water injection amount detection device 18.
この注水量検出装置の出力と注水バンク開始指令装置】
５の出力は注水バンク応答遅れ検出装置１９に導かれ、
注水指令信号と実注水のりｉ始または停止時間により各
注水バンク毎の応答遅れ時間ｔｄｌを演算し、その演算
結果を注水バンク開閉決定演算装置１４に入力する。Output of this water injection amount detection device and water injection bank start command device]
The output of 5 is led to the water injection bank response delay detection device 19,
The response delay time tdl for each water injection bank is calculated based on the water injection command signal and the actual water injection start or stop time, and the calculation result is input to the water injection bank opening/closing determination calculation device 14.
上記において、バンク通過時刻計算装置８は次のように
して、各スラブセグメン）Ａ−Ｆの注水バンク通過時刻
ｔｉを計算する。即ちスラブ加速パターン計′算装置６
から出力されるスラブ速度ｖ （ｔ）が第２図の曲線側
のように変化する場自、各注水バンク３の距離を第３図
のように７１ ＋ ＆ １・・・、ｌｌとすると、スラ
ブセグメントＡの各注水バンク通過時刻ｔｉを次式の演
算によって求めろ。In the above, the bank passing time calculation device 8 calculates the water injection bank passing time ti of each slab segment A to F as follows. That is, the slab acceleration pattern calculation device 6
When the slab speed v (t) output from V (t) changes as shown in the curved line in Fig. 2, and the distance between each water injection bank 3 is set to 71 + & 1..., ll as shown in Fig. 3, then Find each water injection bank passing time ti of slab segment A by calculating the following equation.
ｔｏ ｊ−’１
但し、ｔｏハセグメントＡが＃１の注水バンクに進入す
る時刻を示すＣ
また、バンク注水量計算装置１０はスラブセグメントＡ
が上記加速パターンで走行する場合に各注水バンク３か
ら注水されろ水ＱＮＩを、注水バンク通過時刻ｊｉと、
単位時間バンク注水量記憶装置９に記憶されている注水
量ｎｉ［Ｎｍｇ／ ｔ 〕に基いて次式の演算を行ない
出力する。to j-'1 However, to C indicates the time when segment A enters the #1 water injection bank.
When running in the above acceleration pattern, the water injected from each water injection bank 3 QNI, the water injection bank passing time ji,
Based on the water injection amount ni [Nmg/t] stored in the unit time bank water injection amount storage device 9, the following equation is calculated and output.
Ｎ１＝ｎｉＸ（ｔｉ−ｔｌ−１） ・・・
（４）また、スラブ注水量計算装置１１は（１）式によ
り、スラブセグメントＡが必要とする注水ｉＮｔを計算
し、出力する。この（１）式は前述のようにスラブ厚Ｈ
，スラブ仕上目標温度ｌ、仕上入側温［Ｔｈ等の関数で
あり、これらの値は同一スラブでも位置により変化する
ので１割込み毎に各セグメントについて計算する。N1=niX(ti-tl-1)...
(4) Furthermore, the slab water injection amount calculation device 11 calculates and outputs the water injection amount iNt required by the slab segment A using equation (1). As mentioned above, this equation (1) is expressed by the slab thickness H
, slab finishing target temperature l, finishing entrance temperature [Th, etc., and since these values change depending on the position even in the same slab, they are calculated for each segment for each interruption.
開バンク選択計算装置１２ば、上述の計算によって求め
られた必要注水量Ｎｔとバンク注水ｉＮｉおよび注水バ
ンク優先度に基いて、該当セグメントの走行に応じて開
とすべき注水バンクを決定する。The open bank selection calculation device 12 determines the water injection bank to be opened according to the running of the relevant segment, based on the required water injection amount Nt, bank water injection iNi, and water injection bank priority determined by the above-mentioned calculation.
この開バンクパターンは各セグメント毎に開パンクパタ
ーン記憶装置１３に記憶され２・割込みタイミング毎に
更新されて注水バンク開閉制御指令を管理する。This open bank pattern is stored in the open puncture pattern storage device 13 for each segment and updated at every interrupt timing to manage water injection bank opening/closing control commands.
また、注水バンク開閉決定演算装置１４は上記した注水
パターン、スラブバンク通過時刻ｔｉ、および注水バン
ク応答遅れ検出装置１９の出力に基いてリアルタイムで
求めたバンクの応答遅れ時間ｔｄｉにより実際の注水バ
ンクの開閉を決定し、注水バンク開閉指令装置１５に開
閉指令ＲＬを出力する。In addition, the water injection bank opening/closing decision calculation device 14 calculates the actual water injection bank using the bank response delay time tdi obtained in real time based on the above-mentioned water injection pattern, the slab bank passing time ti, and the output of the water injection bank response delay detection device 19. Opening/closing is determined and an opening/closing command RL is output to the water injection bank opening/closing command device 15.
次に第４図を参照して本発明の注水バンク制御方式の作
用について説明する。Next, the operation of the water injection bank control system of the present invention will be explained with reference to FIG.
第４図はスラブの速度パターンｖ（ｔ）、ノ（ンク通過
時刻ｔｉ、バンク応答遅れ時間ｔｄ１．開／＜ン・クパ
ターンＰＴおよび実際のバンク聞出力信号ＲＬの関係を
示している。FIG. 4 shows the relationship among the slab speed pattern v(t), the bank passage time ti, the bank response delay time td1.open/<k pattern PT, and the actual bank output signal RL.
速度パターンｖ（ｔ）はスラブ加速ノくターン計算装置
６によって、スラブの圧延予定速度をスラブの先端から
後端まで適当なサンプリングタイム毎に時間のｌＡｋ”
ｌとして求めたもので、各サンプリングタイムの間の値
は補間計算によって求められる。The speed pattern v(t) is calculated by the slab acceleration turn calculation device 6, which calculates the expected rolling speed of the slab at every appropriate sampling time from the front end to the back end of the slab.
The value between each sampling time is obtained by interpolation calculation.
スラブパンク通過時刻ｔｌｌｄスラブセグメントが各バ
ンクを通過する予定時刻を示し７、この時間毎に割込み
が発生し、注水制御’＋１１を実行するタイミング毎
また、バンク応答遅れ時間ｔｄｉσ注水バンク応答遅れ
検出装置１９によってリアルタイムに実測演算された値
であり、各バンクによって応答遅れ晴間にばらつきがあ
るため、第４図に示すように、各バンク毎に異なった値
を示す。Slab puncture passing time tlld Indicates the scheduled time when the slab segment passes through each bank 7, an interrupt occurs at each time, and each time the water injection control '+11 is executed Bank response delay time tdiσ Water injection bank response delay detection device This is a value actually measured and calculated in real time by No. 19, and since the response delay varies depending on each bank, it shows a different value for each bank, as shown in FIG.
開バンクパターンＰＴは開バンク選択計算装置ｌ２で計
算されて開バンクパターン記憶装置１３に編集記憶され
ているあるバンクの開パターンを示すもので、第４図の
例では時刻ｔ！で開、時刻ｔｒで閉となる。The open bank pattern PT indicates the open pattern of a certain bank that is calculated by the open bank selection calculation device l2 and edited and stored in the open bank pattern storage device 13, and in the example of FIG. 4, it is calculated at time t! It opens at time tr and closes at time tr.
ところで、注水バンクから実際に時刻ｔ２〜ｔ５の間、
注水を行なうため゛にはバンク応答遅れ時間ｔｄ１分だ
け先行して注水指令信号を出力する必要があろ０
そこで、本発明では注水バンク開閉決定演算装置１４に
おいて、開バンクパターンＰＴ、スラブバンク通過時刻
ｔ％およびバンク応答遅、れ時間ｔｄｌに基いて実際の
バンク開出力ＲＬを演算し、このパンク開出力ＲＬを開
パンクパターンＰＴよりもバンク応答遅れ時間ｔｄｉず
つ先行して出力させろ。By the way, actually from time t2 to t5 from the water injection bank,
In order to perform water injection, it is necessary to output a water injection command signal in advance by the bank response delay time td1 minute. Therefore, in the present invention, in the water injection bank opening/closing determination calculation device 14, the open bank pattern PT, the slab bank passage time Calculate the actual bank opening output RL based on t% and the bank response delay time tdl, and output this puncture opening output RL in advance of the opening puncture pattern PT by the bank response delay time tdi.
但し、本発明におけろ制御タイミングはスラブがセグメ
ント長１８を走行する毎妬行なわれるので。However, in the present invention, the control timing is performed every time the slab travels the segment length 18.
バンク開出力ＲＬはバンク通過時刻ｔｌのうち酸も近い
タイミングを選択して出力される。即ち、第４図の例で
は、時刻１＋でバンク開指令を出力し。The bank opening output RL is output by selecting a timing close to the bank passing time tl. That is, in the example of FIG. 4, the bank open command is output at time 1+.
時刻ｔ４でバンク閉指令を出力している。A bank close command is output at time t4.
上記した本発明の注水バンク制御方式においては、スラ
ブの必要注水量を加速パターンによる予想速度に基いて
計算し、バンクの応答１１早れ時間を見込んだ制御ｒＡ
ｌを行なうので、スラブ内における温度むらを軽減でき
、スラブの品質向上を図ることができる。また、複雑な
繰返し計算を行なう必要がないので計算時間が短く、計
算機の負荷を軽減でき、きめ細かな制御が可能となる。In the water injection bank control method of the present invention described above, the required amount of water injection into the slab is calculated based on the expected speed based on the acceleration pattern, and the control rA takes into account the early response time of the bank.
1, temperature unevenness within the slab can be reduced and the quality of the slab can be improved. Furthermore, since there is no need to perform complex repeated calculations, the calculation time is short, the load on the computer can be reduced, and fine control is possible.
また更に、スラブの必要注水量をセグメント長毎に行な
っているので、仕上目標巻取温度を任意の時間関数とし
て設定でき、複雑な温Ｉｔ’設定を行なうことも可能と
なる。また、バンク応答遅れ時間をリアルタイムで逐次
測定しているので、水圧等の環境条件の変動やバンクの
経年変化等による変動の影響を除去することができる。Furthermore, since the required amount of water injected into the slab is determined for each segment length, the finishing target winding temperature can be set as an arbitrary time function, and it is also possible to set a complicated temperature It'. Furthermore, since the bank response delay time is sequentially measured in real time, it is possible to eliminate the effects of fluctuations in environmental conditions such as water pressure, changes in the bank over time, and the like.
第１図は本発明において使用されろ注水バンク制御装置
の実施例を示す説明図、第２図は本発明におけるスラブ
加速パターンの一例を示すグラフ、第３図はスラブ走行
状況説明図、第４図は本発明の実施例のタイムチャート
である。
１・・・圧延ミル、２・・・スラブ、３・・・注水バン
ク列。
４・・・パルスジェネレータ、１６・・・眠磁弁、１７
・・・流量計。
出願人代理人 猪 股 清第２図
スラブ速度
第３図Fig. 1 is an explanatory diagram showing an embodiment of the water injection bank control device used in the present invention, Fig. 2 is a graph showing an example of the slab acceleration pattern in the present invention, Fig. 3 is an explanatory diagram of the slab running situation, The figure is a time chart of an embodiment of the present invention. 1...Rolling mill, 2...Slab, 3...Water injection bank row. 4...Pulse generator, 16...Sleep valve, 17
···Flowmeter. Applicant's representative Kiyoshi Inomata Figure 2 Slab speed Figure 3
Claims (1)
置し、スラブが所定距離を走行する度に割込み信号を計
算機に入力して注水バンクに注水指令信号を出力する注
水バンク制御方式において、スラブ加速パターン計算装
置の出力に基いてスラブのバンク通過時間を計算し、こ
の通過時間と単位時間バンク注水量記憶装置の出力に基
いてスラブのセグメント長毎の必要注水量を計算し、注
水バンク開閉指令装置と注水量検出装置の出力に基いて
各バンクの応答遅れ時間をリアルタイムで測定演算し、
この応答遅れ時間分だけ先行して注水バンク開閉決定演
算装置よりバンク開閉指令を出力することを％徴とす・
る注水バンク制御方式。 ２、バンク注水量計算装置の出力とスラブ注水量計算装
置の出力に基いて、開とすべきバンクを開バンク選択計
算装置により計算し、この計算結果を開パンクパターン
記憶装置を介して注水バンク開閉決定演算装置に入力す
ることを特徴とする特許請求の範囲第１項に記載の注水
バンク制御方式。[Claims] 1. A plurality of water injection banks are arranged along the running direction of the slab, and each time the slab travels a predetermined distance, an interrupt signal is input to a computer and a water injection command signal is output to the water injection bank. In the water injection bank control method, the bank passage time of the slab is calculated based on the output of the slab acceleration pattern calculation device, and the required water injection amount for each segment length of the slab is calculated based on this passage time and the output of the unit time bank water injection amount storage device. is calculated, and the response delay time of each bank is measured and calculated in real time based on the output of the water injection bank opening/closing command device and the water injection amount detection device.
The percentage sign is to output a bank opening/closing command from the water injection bank opening/closing decision calculation device in advance by this response delay time.
Water injection bank control method. 2. Based on the output of the bank water injection amount calculation device and the output of the slab water injection amount calculation device, the bank to be opened is calculated by the opening bank selection calculation device, and the calculation result is used to select the water injection bank via the open puncture pattern storage device. The water injection bank control method according to claim 1, wherein the water injection bank control method is input to an opening/closing decision calculation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57190306A JPS5978711A (en) | 1982-10-29 | 1982-10-29 | Controlling method of water spraying bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57190306A JPS5978711A (en) | 1982-10-29 | 1982-10-29 | Controlling method of water spraying bank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5978711A true JPS5978711A (en) | 1984-05-07 |
Family
ID=16255961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57190306A Pending JPS5978711A (en) | 1982-10-29 | 1982-10-29 | Controlling method of water spraying bank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978711A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63137513A (en) * | 1986-11-26 | 1988-06-09 | Kobe Steel Ltd | Control method for preventing over-cooling of tail end of steel plate |
| US8692725B2 (en) | 2007-12-20 | 2014-04-08 | Harada Industry Co., Ltd. | Patch antenna device |
| USD726696S1 (en) | 2012-09-12 | 2015-04-14 | Harada Industry Co., Ltd. | Vehicle antenna |
| US9225055B2 (en) | 2011-03-24 | 2015-12-29 | Harada Industry Co., Ltd. | Antenna device |
-
1982
- 1982-10-29 JP JP57190306A patent/JPS5978711A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63137513A (en) * | 1986-11-26 | 1988-06-09 | Kobe Steel Ltd | Control method for preventing over-cooling of tail end of steel plate |
| US8692725B2 (en) | 2007-12-20 | 2014-04-08 | Harada Industry Co., Ltd. | Patch antenna device |
| US9225055B2 (en) | 2011-03-24 | 2015-12-29 | Harada Industry Co., Ltd. | Antenna device |
| US9287610B2 (en) | 2011-03-24 | 2016-03-15 | Harada Industry Co., Ltd. | Antenna device |
| US9680201B2 (en) | 2011-03-24 | 2017-06-13 | Harada Industry Co., Ltd. | Antenna device |
| US9825351B2 (en) | 2011-03-24 | 2017-11-21 | Harada Industry Co., Ltd. | Antenna device |
| USD726696S1 (en) | 2012-09-12 | 2015-04-14 | Harada Industry Co., Ltd. | Vehicle antenna |
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