JPS59229267A - Sensing system in powder charger for continuous casting - Google Patents

Sensing system in powder charger for continuous casting

Info

Publication number
JPS59229267A
JPS59229267A JP10173983A JP10173983A JPS59229267A JP S59229267 A JPS59229267 A JP S59229267A JP 10173983 A JP10173983 A JP 10173983A JP 10173983 A JP10173983 A JP 10173983A JP S59229267 A JPS59229267 A JP S59229267A
Authority
JP
Japan
Prior art keywords
powder
nozzle
charging
molten steel
signal
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
JP10173983A
Other languages
Japanese (ja)
Inventor
Yoshio Kinoshita
喜夫 木下
Kenji Fujiwara
謙二 藤原
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP10173983A priority Critical patent/JPS59229267A/en
Publication of JPS59229267A publication Critical patent/JPS59229267A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10Supplying or treating molten metal
    • B22D11/108Feeding additives, powders, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To eliminate the need for a coordinate converter and position detector and to enable adequate charging of powder with the device simplified over the entire part by charging powder to a molten steel at every detection of the part where the powder is deficient. CONSTITUTION:A molten steel 3 is poured through an inlet 1 onto a pouring floor 2 then powder 4 is sprayed onto the molten steel. The powder 4 melts gradually into the steel 3 and a part 4a where the powder is deficient is generated. The light generated from the part 4a is converted to an electric current signal by a photosensor 9 and a CPU12 outputs the signal to stop a charging nozzle 31 to a driving circuit 33. When the nozzle 31 stops, the CPU12 outputs the signal to move the nozzle 31 to a prescribed position to a driving circuit 33. The nozzle 31 moves to the prescribed position and charges the powder 4 within the visual range of quartz tubes 6, 6'. The scanning is accomplished again after the powder is charged according to need.

Description

【発明の詳細な説明】 この発明は連続鋳造・ぐラダ投入装置におけるセンシン
グ方式に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sensing method in a continuous casting/grader charging device.

従来、連続鋳造システムにおけるバッグ投入装置は例え
は第1図に示すように構成されている。同図において、
1は鋳込口であり、この鋳込口1から鋳込床2へ溶鋼3
が注ぎ込まれる。
Conventionally, a bag loading device in a continuous casting system is configured as shown in FIG. 1, for example. In the same figure,
1 is a pouring port, and molten steel 3 flows from this pouring port 1 to a pouring bed 2.
is poured into it.

注ぎ込まれた溶鋼3は空気に触れると酸化して製品の材
質(二悪影響を及ぼすため酸化防止用のパウダ4が投入
ノズル5から散布される。このパウダ4は除々に溶鋼3
中に溶け1部分的に欠損部4aが生じ、赤く発色する。
When the poured molten steel 3 comes into contact with air, it oxidizes and has a negative effect on the quality of the product, so oxidation prevention powder 4 is sprayed from the charging nozzle 5. This powder 4 gradually changes the molten steel 3
It dissolves inside, and a defective part 4a is formed partially, and the color develops red.

発色した光線は、投入ノズル5に設けられた石英管6.
コネクタ7、光フアイバケーブル8を通って、光センサ
9に入力し、この光センサ9から入力した光量に応じた
電流が出力される。この信号は。
The colored light rays are sent to the quartz tube 6 installed in the injection nozzle 5.
The light is inputted to the optical sensor 9 through the connector 7 and the optical fiber cable 8, and a current corresponding to the input light amount is outputted from the optical sensor 9. This signal is.

レバル設定器10で一定値(あらかじめ測定したデータ
による。)以上のものだけA/D変換器11に出力され
、さらにこのA / D変換器11において数段階のデ
ジタル信号に変換されて、 CPU J 2にパウダ投
入量情報として送られる。欠損部4aの検出は、2つの
駆動装置13゜14によってノズル5を矢、印Aに沿っ
て移動させて行う。これにより、鋳込床2の一区画15
毎に位置検知器16.17からの信号が座標演算器18
によりCPU 12に伝達され、上記パウダ投入量情報
の読み込み命令及び座標情報として伝達される。CPU
 12はこれら2つの情報をメモリ19に格納し、−通
り測定を行う。その後、メモリ19内の座標情報により
駆動回路20、さらに駆動装置13.14に駆動して投
入ノズル5を移動させパウダ4會投入するものである。
The level setter 10 outputs only those values that are above a certain value (based on data measured in advance) to the A/D converter 11, which converts them into digital signals of several levels and sends them to the CPU J. 2 as powder input amount information. Detection of the defective portion 4a is performed by moving the nozzle 5 along the arrow mark A using the two drive devices 13 and 14. As a result, one section 15 of the casting bed 2
The signals from the position detectors 16 and 17 are sent to the coordinate calculator 18.
The information is transmitted to the CPU 12 as a command to read the powder input amount information and coordinate information. CPU
12 stores these two pieces of information in the memory 19 and performs -way measurements. Thereafter, the drive circuit 20 and further the drive devices 13 and 14 are driven based on the coordinate information in the memory 19 to move the charging nozzle 5 and charge the powder 4.

このように、従来の連続鋳造システムにおいては、欠損
部4aの検出が−通り終了した後にパウダ4を投入して
いる。
As described above, in the conventional continuous casting system, the powder 4 is introduced after the detection of the defective portion 4a has been successfully completed.

しかしながら、上記のような方式では、一過程終了する
ためには投入ノズル5會鋳込床2において2往復させる
必要がある。このため時間がかかり、検出から投入まで
の時間によってパウダ4における欠損部4aの状況が変
化する場合があり、適切なバッグの投入ができない。ま
た、情報を一旦メモリ19に格納するといった方式のた
め、装置が複雑になり、製品価格が高価となる。
However, in the above method, it is necessary to make two reciprocations of the charging nozzle 5 in the casting bed 2 in order to complete one process. This takes time, and the condition of the defective portion 4a in the powder 4 may change depending on the time from detection to loading, making it impossible to properly load the bag. Furthermore, since the information is temporarily stored in the memory 19, the device becomes complicated and the product price increases.

この発明は上記実情に鑑みてなされたもので。This invention was made in view of the above circumstances.

その目的は、簡単な構成で、装置の小型化及び低価格化
が可能であり、かつバッグの投入を適切に行うことがで
きる連続鋳造/IPウダ投入装置におけるセンシング方
式を提供することにある。
The purpose is to provide a sensing method for a continuous casting/IP waste charging device that has a simple configuration, allows the device to be made smaller and lower in price, and can properly load bags.

以下1図面″ftオ照してこの発明の一実施例を説明す
る。第2図は連続鋳造システムにおける/やラダ投入装
置の全体構成を示すものである。
An embodiment of the present invention will be described below with reference to the drawings. Fig. 2 shows the overall configuration of a ladder charging device in a continuous casting system.

ここで、第1図と同一構成部分は同一符号を付してその
説明を省略する。同図において、このバッグ自動投入装
置における検出システムは。
Here, the same components as in FIG. 1 are given the same reference numerals, and the explanation thereof will be omitted. In the figure, the detection system in this automatic bag loading device is shown.

投入ノズル31に設けられた石英管61 ”sコネクタ
7、光フアイバグープル8及び光センサ9により構成さ
れている。この検出システムは。
This detection system is composed of a quartz tube 61''s connector 7 provided on the input nozzle 31, an optical fiber group 8, and an optical sensor 9.

投入ノズル31円の石英管6,6に2系統あり。There are two systems in the quartz tube 6,6 with a charging nozzle of 31 yen.

測定範囲に死角音生じさせないようにし、また検出と確
認全同時に行うようになっている。また、この検出シス
テムからの検出信号’i CPU12に適合する信号に
変換するインターフェイスは、レベル設定器1o及びA
/D変換器11により構成されている。CPU J 2
による演算は。
It is designed to prevent noise from occurring in the measurement range, and to perform detection and confirmation at the same time. In addition, the interface for converting the detection signal 'i from this detection system into a signal suitable for the CPU 12 is the level setter 1o and the
/D converter 11. CPUJ2
The calculation by .

入力データとあらかじめ測定して得られ、メモリ32に
格納されているデータと?比較することにより行われ、
このCPU 12から駆動回路33に対して制御信号が
出力される。駆動回路33はこの制御信号を受けて、前
記投入ノズル3ノの横方向の移動を行う駆動装置34及
び縦方向の移動を行う駆動装置35それぞれに対して駆
動信号を出力する。また、、:I6,37はそれぞれ鋳
込床2の測°定ラインB(a→b→C→d)における投
入ノズル31の限界停止位置に設けられ、駆動回路33
に対して停止信号を出ノjするリミットスイッチである
The input data and the data obtained by pre-measurement and stored in the memory 32? It is done by comparing
A control signal is output from the CPU 12 to the drive circuit 33. In response to this control signal, the drive circuit 33 outputs a drive signal to a drive device 34 that moves the input nozzle 3 in the horizontal direction and a drive device 35 that moves the injection nozzle 3 in the vertical direction. Further, :I6, 37 are respectively provided at the limit stop position of the charging nozzle 31 in the measurement line B (a→b→C→d) of the casting bed 2, and the drive circuit 33
This is a limit switch that outputs a stop signal to the machine.

次に、上記構成のバッグ自動投入装置の動作ついて説明
する。先ず、@適法2に鋳込口1より溶鋼3が注ぎ込ま
れ1次に酸化防止用の・ぞラダ4が散布されるが、パウ
ダ4は徐々に溶鋼3円に溶け、その結果欠損部4aが発
生する。しかして、投入ノズル31が一定時間毎に鋳込
床2の測定ラインB(a−+b−+C−+d)に沿って
移動し、−9ウダ4の欠損s4 aの検出にあたる。
Next, the operation of the automatic bag loading device having the above configuration will be explained. First, molten steel 3 is poured into the @legal method 2 from the pouring port 1, and then oxidation prevention powder 4 is sprinkled, but the powder 4 gradually melts into the molten steel 3 yen, and as a result, the defective part 4a is Occur. Thus, the injection nozzle 31 moves along the measurement line B (a-+b-+C-+d) of the casting bed 2 at regular intervals, and detects the defect s4a of the -9 Uda 4.

すなわち、測定ラインBのa点から投入ノズル3ノがス
キャニングを始め、パウダ4の欠損部4aから発生して
いる光が石英管6 、6’、コネクタ7及び光フアイバ
ケーブル8を通り、光センサ9によって光量に応じた電
流信号に変換される。そして、レベル設定器1oは光セ
ンサ9からの信号か一定レベル(あらかじめ測定して決
定すホキ 3゜)以上のとき入力電流に応じた電圧’iA/D変換
器11へ出力する。A/D変換器11は、パウダ4の投
入をどの程度適正に行うかその度合に応じて数段階のプ
ジタル信号@ CPU J 2に出力する。CPU 1
2はデジタル信号を受は取ると。
That is, the input nozzle 3 starts scanning from point a on the measurement line B, and the light generated from the defective part 4a of the powder 4 passes through the quartz tubes 6, 6', the connector 7, and the optical fiber cable 8, and is detected by the optical sensor. 9, it is converted into a current signal according to the amount of light. Then, the level setter 1o outputs a voltage corresponding to the input current to the A/D converter 11 when the signal from the optical sensor 9 is above a certain level (3 degrees determined by measurement in advance). The A/D converter 11 outputs several levels of digital signals @ CPU J 2 depending on how properly the powder 4 is added. CPU 1
2 receives and receives digital signals.

先ず投入ノズル31′t−停止させるための信号を駆動
回路33に出力する。投入ノズル31か停止すると、 
CPU 12は、数本有る石英管6,6′の中でどれと
どれから11号A1人力しているか全判断して、投入ノ
ズル31を所定の位置へ移動させるための信号t−駆動
回路33に出力する。
First, a signal for stopping the injection nozzle 31't is outputted to the drive circuit 33. When the input nozzle 31 stops,
The CPU 12 determines which of the several quartz tubes 6, 6' is being manually powered by No. 11 A1, and sends a signal t-drive circuit 33 to move the injection nozzle 31 to a predetermined position. Output to.

しかして、*動回路33から駆動装置34゜35それぞ
れに対し駆動信号が出力され、これにより投入ノズル3
1が所定の位置に移動して石英管6,6′の視野範囲内
にバッグ4を投入する。そして、必要に応じて投入?行
った後、再びスキャニングが行われる。投入ノズル3ノ
が測定ラインのb点の位置に達すると、リミットスイツ
y−36から駆動回路33へ停止信号が出力され1次(
二駆動回路33から横方向の移動を伴って0点へ移動す
るための駆動信号が駆動装置34に出力される。さらに
、測定ラインc−+dの移動においては @−+ bの
移動と同様にスキャニングを行う。投入ノズル31がd
点に達すると、リミットスイッチ37から駆動回路33
へ停止信号が出力され、その結果、投入ノズル31か停
止する。次に、投入ノズル31をd点からa点へ移動さ
せるための信号が駆動回路33から駆動装置34.35
へそれぞれ出力され、これにより投入ノズル31はa点
へ戻る。以上の動作全一定時間おきに繰り返すことによ
って適正なA’ウダ4の投入が行われる。
As a result, drive signals are outputted from the drive circuit 33 to each of the drive devices 34 and 35, and this causes the injection nozzle 3
1 moves to a predetermined position and throws the bag 4 into the viewing range of the quartz tubes 6, 6'. And put it in as needed? After that, scanning is performed again. When the input nozzle 3 reaches the position of point b on the measurement line, a stop signal is output from the limit switch Y-36 to the drive circuit 33, and the primary (
A drive signal for moving to the zero point with horizontal movement is output from the second drive circuit 33 to the drive device 34. Furthermore, scanning is performed in the movement of the measurement line c-+d in the same manner as in the movement of @-+b. The input nozzle 31 is d
When the point is reached, the drive circuit 33 is switched from the limit switch 37.
As a result, the injection nozzle 31 is stopped. Next, a signal for moving the injection nozzle 31 from point d to point a is transmitted from the drive circuit 33 to the drive device 34.35.
As a result, the input nozzle 31 returns to point a. By repeating all of the above operations at regular intervals, A' Uda 4 can be properly added.

このように、この発明のパウダ投入装置においては、パ
ウダ4の欠損部4ai検出する毎に投入ノズル3)から
パウダ4を投入するようにしたので1次のような効果が
ある。
As described above, in the powder charging device of the present invention, the powder 4 is charged from the charging nozzle 3) every time the defective portion 4ai of the powder 4 is detected, so that the following effects are obtained.

■ 従来のような座標変換器及び位置検知器が不要であ
る。■ソフトウェアが簡素になる。■装置全体の構成が
簡単になる。■高速化によって、より適正なパウダ投入
が可能となる。
■ No need for conventional coordinate converters and position detectors. ■Software becomes simpler. ■The configuration of the entire device becomes simpler. ■Higher speed enables more appropriate powder injection.

さらに、従来装置では、@適法2を横方向に2分割して
、ノ母りダ4の欠損部4aが測定されると1分割同全体
にノ(クダ4を投入しているため、不要な箇所にもパウ
ダ4か投入され、)9ウダ消費量か多いが、この発明の
パウダ投入装置では、1本の石英管6の視野角にノ’?
ウダ4を投入するため、鋳込床2會横方向に4〜8分割
(必要に応じてさらに細か、くできる。)することによ
り、適正なパウダ投入が可能であり、その結果、パウダ
4の消費量が少なくなる。
Furthermore, in the conventional device, when the @legal method 2 is divided into two in the horizontal direction and the defective part 4a of the sludge 4 is measured, the sludge 4 is put into the whole of the 1st division. Powder 4 is also injected into the quartz tube 6, and the amount consumed is as high as 9 Udah, but with the powder injecting device of the present invention, the viewing angle of one quartz tube 6 has no effect on the viewing angle.
In order to introduce powder 4, it is possible to properly introduce powder by dividing the casting bed 2 into 4 to 8 parts in the horizontal direction (it can be divided into smaller pieces if necessary). Consumption is reduced.

以上のようにこの発明によれば、ノ9ウダ投入装置の構
成が簡単になり、小型化及び低価格化が可能であり、ま
たバッグの投入全適切に行うことができ、さらにはパウ
ダの消費量も軽減することができる。
As described above, according to the present invention, the configuration of the powder charging device is simplified, making it possible to reduce the size and cost, and also allows bags to be loaded properly, and furthermore, it is possible to consume powder. The amount can also be reduced.

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

第1図は従来の・ぐラダ投入装置の全体構成図。 第2図はこの発明の一実施例に係るパウダ投入装置の全
体構成図である。 2・・・鋳込床、3・・・溶鋼、4・・・パウダ、4a
・・・欠損部、6,6′・・・石英管、7・・・コネク
タ、8・・・光フアイバケーブル、9・・・光センサ、
10・・・レベル設定器、11・・・A/D変換器、1
2・・・CPU S31°°°投入ノズル、32・・・
メモリ、33・・・駆動回路、34.35・・・駆動装
置、36’、37・・・リミットスイッチ。
Fig. 1 is an overall configuration diagram of a conventional gurada feeding device. FIG. 2 is an overall configuration diagram of a powder charging device according to an embodiment of the present invention. 2... Casting bed, 3... Molten steel, 4... Powder, 4a
... Missing part, 6, 6'... Quartz tube, 7... Connector, 8... Optical fiber cable, 9... Optical sensor,
10... Level setter, 11... A/D converter, 1
2...CPU S31°°° input nozzle, 32...
Memory, 33... Drive circuit, 34.35... Drive device, 36', 37... Limit switch.

Claims (1)

【特許請求の範囲】[Claims] 連続鋳造システムの鋳込床に注ぎ込まれた溶鋼上に投入
ノズルにより酸化防止用のパウダ金散布する・ぐラダ投
入装置において、前記溶鋼上の前記パウダに生じた欠損
部を順次検出する手段と、前記欠損f!Is”It検出
する毎に、この検出した欠損部に対して前記ノクウダの
投入を行うように前記投入ノズルを制御する制御手段と
を具備したことを特徴とする連続鋳造バッグ投入装置に
おけるセンシング方式。
Means for sequentially detecting defects occurring in the powder on the molten steel in a gradation charging device that sprays powder gold for oxidation prevention onto the molten steel poured into a pouring bed of the continuous casting system using a charging nozzle; Said defect f! A sensing system for a continuous casting bag loading device, comprising: a control means for controlling the charging nozzle so as to charge the nokuda into the detected defective portion every time Is''It is detected.
JP10173983A 1983-06-09 1983-06-09 Sensing system in powder charger for continuous casting Pending JPS59229267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10173983A JPS59229267A (en) 1983-06-09 1983-06-09 Sensing system in powder charger for continuous casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10173983A JPS59229267A (en) 1983-06-09 1983-06-09 Sensing system in powder charger for continuous casting

Publications (1)

Publication Number Publication Date
JPS59229267A true JPS59229267A (en) 1984-12-22

Family

ID=14308619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10173983A Pending JPS59229267A (en) 1983-06-09 1983-06-09 Sensing system in powder charger for continuous casting

Country Status (1)

Country Link
JP (1) JPS59229267A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371482A2 (en) * 1988-11-30 1990-06-06 Nippon Steel Corporation Continuous casting method and apparatus for implementing same method
US5067553A (en) * 1988-04-27 1991-11-26 Liner Kabouki Co., Ltd. Powder feeder in continuous casting
US5242014A (en) * 1988-11-30 1993-09-07 Nippon Steel Corporation Continuous casting method and apparatus for implementing same method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5067553A (en) * 1988-04-27 1991-11-26 Liner Kabouki Co., Ltd. Powder feeder in continuous casting
EP0371482A2 (en) * 1988-11-30 1990-06-06 Nippon Steel Corporation Continuous casting method and apparatus for implementing same method
US5242014A (en) * 1988-11-30 1993-09-07 Nippon Steel Corporation Continuous casting method and apparatus for implementing same method
US5360051A (en) * 1988-11-30 1994-11-01 Nippon Steel Corporation Continuous casting method and apparatus for implementing same method

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