JPS6253564B2 - - Google Patents
Info
- Publication number
- JPS6253564B2 JPS6253564B2 JP7005379A JP7005379A JPS6253564B2 JP S6253564 B2 JPS6253564 B2 JP S6253564B2 JP 7005379 A JP7005379 A JP 7005379A JP 7005379 A JP7005379 A JP 7005379A JP S6253564 B2 JPS6253564 B2 JP S6253564B2
- Authority
- JP
- Japan
- Prior art keywords
- computer
- furnace
- walking beam
- heating furnace
- stroke amount
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 42
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000000605 extraction Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000002791 soaking Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Control Of Conveyors (AREA)
- Reciprocating Conveyors (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Control Of Heat Treatment Processes (AREA)
- Tunnel Furnaces (AREA)
Description
【発明の詳細な説明】
本発明はウオーキングビーム式加熱炉の材料位
置の検出方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for detecting material position in a walking beam heating furnace.
最近の鉄鋼に関する計算機制御システムにおい
ては生産ラインが原料から製品まで一貫したシス
テム構成となつてきている。又熱間圧延ラインに
ついても１台の計算機による守備範囲は拡大する
方向にあり、加熱炉がラインに占める重要度は下
工程に与える影響を考えると増々大きくなつてき
ている。さらには省エネルギーの時代を反映して
加熱炉の燃焼制御に対する機能の向上は必至であ
る。この燃焼制御に重要な要素の一つとして炉内
に在荷する材料の位置を正確に知る必要がある。
又計算機の信頼性向上についても要求が高まつて
おり、ダウン時間の短縮化が重要である。しか
し、ラインの生産性向上の面より計算機がダウン
中でもラインの操業を続けるケースも多く、加熱
炉においては炉内に在荷する材料の本数が数百本
と多く炉内に在荷する時間も２〜３時間程度と成
り焼上げ上の点から長く炉内に在炉させることは
できない。そこで計算機がダウン中にも加熱炉の
装入は停止させても炉から抽出し、下工程の操業
を行なつた場合に各材料の在炉位置が大きく変化
する。そこで計算機が再開した時点で実際の炉内
の在位置を正確に把握し燃焼制御の早期再開を行
なうためには計算機がダウン中の位置の変化量を
知る必要が生ずる。 In recent computer control systems for steel, the production line has become a consistent system configuration from raw materials to finished products. Furthermore, the scope of coverage of a single computer on a hot rolling line is also expanding, and the importance of the heating furnace on the line is increasing, considering its influence on downstream processes. Furthermore, reflecting the era of energy conservation, improvements in the combustion control functions of heating furnaces are inevitable. As one of the important elements for this combustion control, it is necessary to accurately know the position of the materials in the furnace.
There is also an increasing demand for improved reliability of computers, and it is important to reduce downtime. However, in order to improve line productivity, there are many cases in which lines continue to operate even when computers are down, and in heating furnaces, the number of materials in the furnace is several hundred, and the amount of time the materials are in the furnace is limited. It takes about 2 to 3 hours, so it cannot be kept in the furnace for a long time from the viewpoint of baking. Therefore, even if the charging of the heating furnace is stopped even when the computer is down, if the materials are extracted from the furnace and the lower process operations are performed, the position of each material in the furnace changes significantly. Therefore, in order to accurately grasp the actual position in the furnace when the computer is restarted and to restart combustion control early, it is necessary to know the amount of change in the position when the computer is down.
しかしながら従来のウオーキングビーム式加熱
炉の材料の位置把握方法は、計算機が稼動中の場
合のみ可能であるが、計算機のダウン、調整のた
めに中断した場合、加熱炉内の材料を移動させた
後の位置を正確に把握することはできない。 However, the conventional method of determining the position of materials in a walking beam heating furnace is possible only when the computer is in operation, but if the computer is down or interrupted for adjustment, it is possible to grasp the position of the material in the furnace. It is not possible to accurately determine the location of
本発明に目的は、計算機がダウン等により停止
した際にも、材料の搬送状態を正確に把握可能に
したウオーキングビーム式加熱炉の材料位置の検
出方法を提供するものである。 SUMMARY OF THE INVENTION An object of the present invention is to provide a method for detecting the position of a material in a walking beam heating furnace, which makes it possible to accurately grasp the conveyance state of the material even when the computer is stopped due to failure or the like.
本発明の要旨は、計算機の停止中もウオーキン
グビームの搬送ストローク量を計算機以外のハー
ドウエア、例えばハードレジスタに記憶させ、計
算機再開時にレジスタの内容を読取り材料の抽出
位置からの距離を補正することにより正確な位置
の把握を可能にしたものである。 The gist of the present invention is to store the transport stroke amount of the walking beam in hardware other than the computer, such as a hard register, even when the computer is stopped, and to read the contents of the register and correct the distance from the material extraction position when the computer is restarted. This makes it possible to grasp the location more accurately.
第１図はウオーキングビーム式加熱炉の概略図
であり、第２図は温度変化を示す図である。加熱
炉１は、予熱帯１Ａ、加熱帯１Ｂ、均熱帯１Ｃよ
り成る。この加熱炉１内には、チヤージヤ２によ
つて材料M1が搬入する。搬入した材料M1はスキ
ツド３を介してウオーキングビーム１０により、
順次、加熱炉内を予熱帯１Ａ→加熱帯１Ｂ→均熱
帯１Ｃへと搬送され、炉外に抽出するようになつ
ている。炉に装入された材料の抽出位置からの距
離は、(1)式で計算され、材料M1単位に計算機に
記憶する。 FIG. 1 is a schematic diagram of a walking beam heating furnace, and FIG. 2 is a diagram showing temperature changes. The heating furnace 1 consists of a preheating zone 1A, a heating zone 1B, and a soaking zone 1C. A material M 1 is carried into the heating furnace 1 by a charger 2 . The material M 1 carried in is passed through the skid 3 and transported by the walking beam 10.
The material is sequentially transported inside the heating furnace from a preheating zone 1A to a heating zone 1B to a soaking zone 1C, and is extracted outside the furnace. The distance from the extraction position of the material charged into the furnace is calculated using equation (1) and stored in the computer in units of M 1 material.
Ｌi＝Ｌf−Ｓc−Ｗi …(1)
ここでＬiは抽出材検出器Ｒを基準点とするｉ
番目材料の抽出位置からの距離、Ｌfは加熱炉１
の炉長、Ｓcは装入ストローク量で材料Ｍiが装入
される毎に装入ストローク検出器より入力する。
Ｗiはｉ番目材料の巾である。この抽出位置から
の距離Ｌiは材料Ｍiが装入完了したタイミングで
計算され計算機に材料１本単位に記憶される。 L i =L f −S c −W i …(1) Here, L i is i with extraction material detector R as the reference point.
The distance from the extraction position of the th material, L f is the heating furnace 1
The furnace length, S c , is the charging stroke amount and is input from the charging stroke detector every time the material M i is charged.
W i is the width of the i-th material. This distance L i from the extraction position is calculated at the timing when the material M i is completely charged, and is stored in the computer for each material.
通常、計算機が稼動中はウオーキングビーム１
０が１ストローク移動する毎に自動的に計算機が
搬送ストローク量Ｓwoをウオーキングビーム搬送
ストローク検出器より入力し炉内に在荷する全て
の材料について再計算を行なう。ｉ番目材料の１
ストローク移動後の抽出位置からの距離Ｌoiは
Ｌoi＝Ｌi−Ｓwo …(2)
で計算され材料単位に更新される。 Normally, when the computer is running, walking beam 1
Every time 0 moves by one stroke, the computer automatically inputs the conveyance stroke amount S wo from the walking beam conveyance stroke detector and recalculates all the materials in the furnace. 1 of the i-th material
The distance L oi from the extraction position after the stroke movement is calculated as L oi =L i −S wo (2) and updated in material units.
ここで、計算機が停止した場合に炉の運転を停
止させ炉内の材料を移動させない処置がとられる
場合は(2)式で計算された抽出位置からの距離は不
変であり問題は無いが計算機が停止中でも手動操
作等により材料を移動させた場合にはウオーキン
グビームの搬送ストローク量の入力が停止するた
め計算機が記憶している各材料の抽出位置からの
距離と実際の材料の位置にづれが生じ計算機が再
スタートした場合に炉内材料の位置を必要とする
処理の機能が停止してしまう。本発明はこの点に
注目して計算機の停止後も各材料の抽出位置から
の距離を修正計算を行なうことにより、炉内の在
荷位置を正確に補償するようにした。 Here, if measures are taken to stop the furnace operation and prevent the movement of materials in the furnace when the computer stops, the distance from the extraction position calculated by equation (2) will remain unchanged and there is no problem, but the calculation If the material is moved manually even when the computer is stopped, the input of the walking beam transport stroke amount will stop, so there may be a discrepancy between the distance from the extraction position of each material stored in the computer and the actual material position. If this occurs and the computer is restarted, the processing function that requires the location of the material in the furnace will stop. The present invention focuses on this point and corrects the distance of each material from the extraction position even after the computer is stopped, thereby accurately compensating the position of the material in the furnace.
第３図は本発明の実施例を説明するための図で
あり、計算機１１、計算機スタート入力装置１
２、計算機ストツプ入力装置１３、ハードレジス
タ１４、装入ストローク検出器１５、ウオーキン
グビーム搬送ストローク検出器１６、スイツチ
SW１，SW２，SW３より構成されている。計算
機１１が停止した場合には、計算機１１から自動
的に計算機ストツプ入力装置１３に対して計算機
停止信号が出力され、これによつてスイツチSW
２，SW３がオンとなり、搬送ストローク検出器
１６からはハードレジスタ１４へストローク入力
Ｓwoが印加され、この結果、計算機が停止してい
る間にあつては、ウオーキングビームが移動した
総ストローク量がハードレジスタ１４に積算され
計算機停止中のウオーキングビームのストローク
量は補償される。 FIG. 3 is a diagram for explaining an embodiment of the present invention, in which a computer 11, a computer start input device 1
2. Computer stop input device 13, hard register 14, charging stroke detector 15, walking beam conveyance stroke detector 16, switch
It is composed of SW1, SW2, and SW3. When the computer 11 stops, the computer 11 automatically outputs a computer stop signal to the computer stop input device 13, which causes the switch SW
2, SW3 is turned on, and the stroke input S wo is applied from the transport stroke detector 16 to the hard register 14. As a result, while the computer is stopped, the total stroke amount moved by the walking beam is The amount of stroke of the walking beam is accumulated in the hard register 14 and the amount of stroke of the walking beam while the computer is stopped is compensated.
計算機が正常状態となり稼動を再開すると計算
機１１から自動的に計算機スタート入力装置１２
に計算機再スタート信号が出力されスイツチSW
２がオフとなり、ウオーキングビーム搬送ストロ
ーク量検出器１６からハードレジスタ１４への経
路がしや断され、ハードレジスタ１４へのウオー
キングビーム搬送ストローク量の積算は停止され
る。しかし計算機スタート入力装置１２はスター
ト信号が出力された時点にウオーキングビームが
移動中で１ストローク分の移動が完了していない
場合は移動が完了した後ハードレジスタ１４と検
出器１６とは切離される。それと同時にハードレ
ジスタ１４から計算機１１への回路を有効にする
スイツチSW１が動作し計算機１１がハードレジ
スタ１４に積算されたウオーキングビームストロ
ーク量Ｓwoを入力し計算機１１の停止時点での各
材料の抽出位置からの距離Ｌoiが修正計算され
Ｌoi＝Ｌoi−Ｓwo …(3)
で示されるｉ番目の最新の抽出位置からの距離Ｌ
oiが求められる。このＬoiは計算機１１が稼動再
開時点での実際の炉内材料の抽出位置からの距離
と一致しており、その後の位置更新は(2)式により
行なわれる。 When the computer becomes normal and resumes operation, the computer 11 automatically starts the computer start input device 12.
A computer restart signal is output to the switch SW.
2 is turned off, the path from the walking beam transport stroke amount detector 16 to the hard register 14 is cut off, and the integration of the walking beam transport stroke amount to the hard register 14 is stopped. However, if the walking beam is moving and the movement of one stroke has not been completed at the time when the start signal is output, the computer start input device 12 separates the hard register 14 and the detector 16 after the movement is completed. . At the same time, the switch SW1 that enables the circuit from the hard register 14 to the computer 11 operates, and the computer 11 inputs the accumulated walking beam stroke amount Swo into the hard register 14, and extracts each material when the computer 11 stops. The distance L oi from the position is corrected and calculated, and the distance L from the i-th latest extraction position is shown as L oi =L oi −S wo (3)
oi is required. This L oi corresponds to the distance from the actual extraction position of the in-furnace material at the time when the computer 11 resumes operation, and subsequent position updates are performed using equation (2).
さらに(3)式により各材料単位に抽出位置からの
距離が計算される。 Furthermore, the distance from the extraction position is calculated for each material unit using equation (3).
Ｌoi＜Ｌex …(4)
の判定を行なうことで炉から抽出された位置を決
定する。ここでＬexは炉の抽出基準からの距離を
示す。この抽出材の判断により計算機１１が再ス
タートした時点で操作員により炉内の在荷状況を
修正する処置が簡単に行なえる。尚、検出器１５
は装入ストローク量を与える検出器である。 The position extracted from the furnace is determined by determining L oi <L ex (4). Here, L ex indicates the distance from the extraction standard of the furnace. Based on this determination of the extraction material, the operator can easily correct the inventory status in the furnace when the computer 11 is restarted. In addition, the detector 15
is a detector that gives the charging stroke amount.
以上のように本発明の計算機が停止中でも炉内
の在荷位置を記憶することが可能で計算機が再ス
タートした時点で実際の炉内の在荷位置を正確に
把握することで炉の燃焼制御の再開が従来に比べ
格段に早められ、又炉内の在荷状況の修正も簡単
に行なえ自動運転の早期再開が可能となり炉の有
効利用の面で極めて有効である。 As described above, even when the computer of the present invention is stopped, it is possible to memorize the position of the cargo in the furnace, and when the computer is restarted, the combustion control of the furnace is controlled by accurately grasping the actual position of the cargo in the furnace. The restart is much faster than in the past, and the inventory status in the furnace can be easily corrected, allowing early restart of automatic operation, which is extremely effective in terms of effective utilization of the furnace.
第１図は加熱炉の概略図、第２図は抽出位置か
らの距離と温度との説明図、第３図は計算機のス
トツプ、スタート時のウオーキングビームストロ
ーク量をハードレジスタに記憶し、かつ入力する
本発明の実施例の説明図である。
１……加熱炉、１０……ウオーキングビーム、
１１……計算機、１４……ハードレジスタ、１６
……ウオーキングビーム搬送ストローク検出器。
Figure 1 is a schematic diagram of the heating furnace, Figure 2 is an explanatory diagram of the distance from the extraction position and temperature, and Figure 3 is a hard register that stores and inputs the walking beam stroke amount at the time of stopping and starting the computer. FIG. 2 is an explanatory diagram of an embodiment of the present invention. 1... Heating furnace, 10... Walking beam,
11...Calculator, 14...Hard register, 16
...Walking beam conveyance stroke detector.
Claims (1)
材料の装入ストローク量を第１の検出器によつて
検出し、該装入後の上記加熱炉内でのウオーキン
グビームによつて搬送される材料のウオーキング
ビームストローク量を第２の検出器によつて検出
し、上記第１、第２の検出器によつて検出された
検出値をもとに計算機によつて、各材料毎に上記
加熱炉での材料抽出位置からの加熱炉内での位置
を検出させると共に、上記計算機の停止中にあつ
ては上記計算機とは別個に設けられたハードウエ
アによつて上記第２の検出器からのウオーキング
ビームストローク量を算出し、計算機復帰時には
上記算出したストローク量を上記計算機に与えて
復帰後の材料位置の検出に供せしめるようにした
ウオーキングビーム式加熱炉の材料位置の検出方
法。1 The charging stroke amount of the material charged into the walking beam heating furnace is detected by a first detector, and the material transported by the walking beam in the heating furnace after the charging is detected. A second detector detects the walking beam stroke amount, and a computer calculates the temperature of the heating furnace for each material based on the detected values detected by the first and second detectors. In addition to detecting the position in the heating furnace from the material extraction position at A method for detecting the position of a material in a walking beam heating furnace, wherein a beam stroke amount is calculated, and when the computer returns, the calculated stroke amount is given to the computer to detect the position of the material after the computer returns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7005379A JPS55164022A (en) | 1979-06-06 | 1979-06-06 | Detection of material position for walking beam type heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7005379A JPS55164022A (en) | 1979-06-06 | 1979-06-06 | Detection of material position for walking beam type heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55164022A JPS55164022A (en) | 1980-12-20 |
| JPS6253564B2 true JPS6253564B2 (en) | 1987-11-11 |
Family
ID=13420423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7005379A Granted JPS55164022A (en) | 1979-06-06 | 1979-06-06 | Detection of material position for walking beam type heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55164022A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888505B (en) * | 2011-07-19 | 2014-06-04 | 宝山钢铁股份有限公司 | Control method for detection of slab in heating furnace |
| CN102888506B (en) * | 2011-07-22 | 2013-11-20 | 宝山钢铁股份有限公司 | Method for controlling position of plate blank at extraction end of heating furnace |
-
1979
- 1979-06-06 JP JP7005379A patent/JPS55164022A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55164022A (en) | 1980-12-20 |
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