JPH0337820B2 - - Google Patents
Info
- Publication number
- JPH0337820B2 JPH0337820B2 JP18968486A JP18968486A JPH0337820B2 JP H0337820 B2 JPH0337820 B2 JP H0337820B2 JP 18968486 A JP18968486 A JP 18968486A JP 18968486 A JP18968486 A JP 18968486A JP H0337820 B2 JPH0337820 B2 JP H0337820B2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- groove
- molten metal
- continuous casting
- casting 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.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000009749 continuous casting Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000005266 casting Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 206010063659 Aversion Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
- B22D11/185—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0602—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a casting wheel and belt, e.g. Properzi-process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は亜鉛等金属を鋳造する連続鋳造機に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a continuous casting machine for casting metals such as zinc.
第３図は連続鋳造機の構成図で、ａは正面図、
ｂは要部平面図である。図中１はドラム、１ａは
その溝、２はスチールベルト、３は樋、４は給湯
タンク、５は溶解炉、６は液面計、７は溶湯、８
はポンプ、９は湯溜り部、１０は空間部、１８は
鋳造板である。
Figure 3 is a configuration diagram of the continuous casting machine, a is a front view,
b is a plan view of main parts. In the figure, 1 is the drum, 1a is the groove, 2 is the steel belt, 3 is the gutter, 4 is the hot water tank, 5 is the melting furnace, 6 is the liquid level gauge, 7 is the molten metal, 8
9 is a pump, 9 is a water reservoir, 10 is a space, and 18 is a cast plate.
図において溶解炉５で溶解された溶湯７は、ポ
ンプ８で吸引されて給湯タンク４内に送られ、さ
らに樋３を介してドラム１の溝１ａに流入され
る。ドラム１は矢印方向に回転しているので、溶
湯７はドラム１の湯溜り部９を矢印方向に流動す
る。ドラム１の外周部の最頂部近傍に、該外周部
に密着してスチールベルト２が矢印方向に移動し
ており、上記ドラム外周部の溝１ａとスチールベ
ルト２とで空間部１０を形成する。溶湯７は湯溜
り部９よりこの空間部１０内に流入し、この空間
部１０で水冷されて凝固し、鋳造板１８となつて
ドラム１の下部より排出される。 In the figure, molten metal 7 melted in a melting furnace 5 is sucked by a pump 8 and sent into a hot water supply tank 4, and further flows into a groove 1a of a drum 1 via a gutter 3. Since the drum 1 is rotating in the direction of the arrow, the molten metal 7 flows in the sump 9 of the drum 1 in the direction of the arrow. A steel belt 2 is moved in the direction of the arrow near the top of the outer periphery of the drum 1 in close contact with the outer periphery, and a space 10 is formed by the groove 1a on the outer periphery of the drum and the steel belt 2. The molten metal 7 flows into this space 10 from the sump 9, is water-cooled in this space 10, solidifies, becomes a cast plate 18, and is discharged from the lower part of the drum 1.
この連続鋳造機を運転するに当つて最も重要な
ことは、製品品質を保持するため空間部１０内
に溶湯７が満遍なく充填されること、及び安全
と設備保全の面より、湯溜り部９から溶湯７をオ
ーバーフローさせないこと、すなわち溶湯７が鋳
造凝固スピードに一致して過不足を生じないよう
に、給湯タンク４からドラム１に供給されること
である。そのため従来装置においては、スチール
ベルト２をドラム外周部の最頂部近傍に配置する
とともに、液面計６及びポンプ８を連動させて、
給湯タンク４の湯面が常に一定になるように制御
している。 The most important thing when operating this continuous casting machine is that the molten metal 7 is evenly filled in the space 10 in order to maintain product quality, and that the molten metal 7 is evenly filled in the space 10 in order to maintain product quality. The molten metal 7 must not overflow, that is, the molten metal 7 must be supplied from the hot water supply tank 4 to the drum 1 so as not to cause excess or deficiency in accordance with the casting solidification speed. Therefore, in the conventional device, the steel belt 2 is placed near the top of the outer circumference of the drum, and the liquid level gauge 6 and pump 8 are interlocked.
Control is performed so that the hot water level in the hot water supply tank 4 is always constant.
ところで上記液面計６とポンプ８とを連動させ
て制御し、給湯タンク内の湯面を常に一定に保持
しても、給湯樋内側への溶融金属の凝固付着によ
り給湯量が減少し、又湯温冷却水量、冷却水温
度、外気温度等の変動の影響を受け鋳造凝固スピ
ードが変動するため、給湯量と鋳造凝固スピード
とを常に一致させることは困難であつた。そのた
め運転員の目視により湯溜り部４の液面を監視
し、ドラム１の回転数を制御するという専ら運転
員の人力操作に頼らざるを得ず、従つて運転員は
片時も機側を離れることができないという状況に
あり、運転員の単純作業への嫌悪感、疲労などか
ら、運転の自動化が切望されていた。
By the way, even if the liquid level gauge 6 and pump 8 are controlled in conjunction to maintain the hot water level in the hot water supply tank at a constant level, the amount of hot water supplied may decrease due to the solidification and adhesion of molten metal to the inside of the hot water supply gutter. Since the casting solidification speed fluctuates under the influence of changes in hot water temperature, cooling water volume, cooling water temperature, outside air temperature, etc., it has been difficult to always match the amount of hot water supplied to the casting solidification speed. Therefore, the operator has no choice but to rely exclusively on the manual operation of visually monitoring the liquid level in the water reservoir 4 and controlling the rotational speed of the drum 1, and therefore the operator does not have to leave the machine side at any time. Automation of driving was desperately needed due to the situation where it was impossible to leave the vehicle, and due to the aversion and fatigue of the operators to simple tasks.
本発明は上記問題点を解消するためになされた
もので、自動運転可能な連続鋳造機を提供しよう
とするものである。 The present invention has been made to solve the above-mentioned problems, and aims to provide a continuous casting machine that can be operated automatically.
上記目的を達成するため種々考案の結果、溶湯
７は樋３より湯溜り部９を経て空間部１０に流入
する際、樋３の内側部の幅をドラム１の溝１ａの
幅より若干小さくすることにより、湯溜り部９か
ら、空間部１０に流入しようとする溶湯７の流れ
の両側部に逆走部を生じ、この逆走部の先端の位
置を一定位置に保持するようにドラム１の回転数
を制御すれば、溶湯７が空間部１０内に万辺なく
充填するとともに、湯溜り部からもオーバフロー
しないように制御しうるという知見を得た。
As a result of various ideas to achieve the above object, when the molten metal 7 flows from the gutter 3 through the sump 9 and into the space 10, the width of the inner side of the gutter 3 is made slightly smaller than the width of the groove 1a of the drum 1. As a result, reverse running parts are created on both sides of the flow of the molten metal 7 that is about to flow from the pool 9 into the space 10, and the drum 1 is adjusted so as to maintain the tip of this reverse running part at a constant position. It has been found that by controlling the rotation speed, it is possible to fill the space 10 with the molten metal 7 evenly and to prevent it from overflowing from the pool.
なお上記逆走部を形成するため、スチールベル
トは、スチールベルトの上端部をドラム外周部の
最頂部近傍に位置させることが必要である。 Note that in order to form the above-mentioned reverse running portion, it is necessary to position the upper end of the steel belt near the top of the outer circumferential portion of the drum.
よつて本発明は連続鋳造機において、上記逆走
部の先端の位置を検出するイメージセンサと、該
センサの情報に応じてドラムの回転数を演算する
コンピユータと、該コンピユータの出力をうけて
ドラム駆動用モータの回転数を制御する制御装置
とよりなる自動運転装置を備えた。 Therefore, the present invention provides a continuous casting machine that includes an image sensor that detects the position of the tip of the reverse running section, a computer that calculates the number of rotations of the drum according to information from the sensor, and a computer that calculates the rotation speed of the drum based on the output of the computer. It is equipped with an automatic driving device consisting of a control device that controls the rotation speed of the drive motor.
イメージセンサを用いて逆走部の先端の位置を
検出するので、溶湯温度、浮滓の存在あるいは給
湯タンクの湯面高さなどに影響されることなく情
報を得ることができ、さらにコンピユータを併用
したので迅速確実にドラムの回転数制御が行なえ
ることとなり、正確かつ安全な自動運転が可能と
なつた。
Since the position of the tip of the reverse run section is detected using an image sensor, information can be obtained without being affected by the temperature of the molten metal, the presence of scum, or the height of the hot water level in the hot water tank. This made it possible to control the drum rotation speed quickly and reliably, making accurate and safe automatic operation possible.
第１図は本発明の一実施例を示す自動運転方法
の構成図、第２図は湯溜り部のａは側面断面図、
ｂは平面図である。図中１〜１０は従来装置と同
一又は相当部分、１１はイメージセンサ、１２は
コンピユータ、１３は制御装置、１４は背水曲
線、１５は逆走部、１５ａは逆走部の先端、１６
は基準点、１７はイメージセンサの測定範囲であ
る。
Fig. 1 is a configuration diagram of an automatic operation method showing an embodiment of the present invention, Fig. 2 is a side sectional view of the water reservoir section, and
b is a plan view. In the figure, 1 to 10 are the same or equivalent parts as the conventional device, 11 is an image sensor, 12 is a computer, 13 is a control device, 14 is a backwater curve, 15 is a reverse running part, 15a is the tip of the reverse running part, 16
is a reference point, and 17 is a measurement range of the image sensor.
図に示すように、ドラム１の外周部の最頂部１
ｃの近くに樋３を配置するとともに、最頂部１ｃ
を挟んで反対側にスチールベルト２の上端部がく
るようにスチールベルト２を配置する。幾つかの
実験の結果、ドラム１の中心Ｏとドラム外周部の
最頂部１ａとを結ぶ鉛直線と、樋３の先端部とド
ラム１の中心とを結ぶ直線のなす角度αを２度、
また上記鉛直線とスチールベルト２の上部プーリ
２ａの中心Ｃとドラム中心Ｏとを結ぶ直線とのな
す角度βを３度としたとき、上記逆走部を最もよ
く形成し得ることが判明している。 As shown in the figure, the top 1 of the outer circumference of the drum 1
The gutter 3 is placed near the top part 1c.
The steel belt 2 is arranged so that the upper end of the steel belt 2 is on the opposite side of the belt. As a result of several experiments, the angle α formed by the vertical line connecting the center O of the drum 1 and the topmost part 1a of the outer circumference of the drum and the straight line connecting the tip of the gutter 3 and the center of the drum 1 is 2 degrees.
It has also been found that the reverse running portion can be formed best when the angle β between the vertical line and the straight line connecting the center C of the upper pulley 2a of the steel belt 2 and the drum center O is 3 degrees. There is.
第２図に示すように、樋３の内側部の幅をドラ
ムの溝の幅より若干小さくし、樋３よりドラム１
の湯溜り部９に溶湯７を流入せしめると、溶湯７
はスチールベルト２が障碍物となつて背水曲線１
４を形成し、両端部には逆走部１５を形成する。
逆走部１５の先端１５ａは、溶湯の流入量及びド
ラム速度の変動により絶えず変動する。従つて溶
湯７がスチールベルト２とドラム１の溝１ａの間
に満遍なく充填し、かつドラムの溝１ａからオー
バフローもしないような最適状況における逆走部
先端１５ａの位置を、基準点１６として予め求め
ておき、逆走部先端１５ａの該基準点１６からの
変位量を検出し、先端１５ａが基準点１６より前
方へ出ればドラムの回転数を下げ、反対に基準点
１６より後方へ退ればドラム回転数を上げるよう
に制御すれば、溶湯７はドラムの溝１ａとスチー
ムベルト２との間の空間部１０を満遍なく充填す
るとともに、ドラムの溝１ａよりオーバフローす
ることもなく、溶湯は順調に自動的に鋳造され
る。 As shown in FIG.
When the molten metal 7 is allowed to flow into the pool 9, the molten metal 7
The steel belt 2 becomes an obstacle and the backwater curve 1
4, and reverse running portions 15 are formed at both ends.
The tip 15a of the reverse running portion 15 constantly fluctuates due to fluctuations in the amount of molten metal flowing in and the drum speed. Therefore, the position of the tip 15a of the reverse running part in an optimal situation where the molten metal 7 is evenly filled between the steel belt 2 and the groove 1a of the drum 1 and does not overflow from the groove 1a of the drum is determined in advance as the reference point 16. Then, the amount of displacement of the tip 15a of the reverse running section from the reference point 16 is detected, and if the tip 15a moves forward from the reference point 16, the rotation speed of the drum is lowered, and conversely, if it moves back from the reference point 16, the rotation speed of the drum is decreased. If the drum rotation speed is controlled to increase, the molten metal 7 will evenly fill the space 10 between the drum groove 1a and the steam belt 2, and the molten metal will flow smoothly without overflowing from the drum groove 1a. Cast automatically.
第１図はこの自動運転のための設備を示してい
る。すなわち、イメージセンサ１１により湯溜り
部９における溶湯の逆走部５の先端１５ａの基準
点１６からの変位量を検出し、その情報をコンピ
ユータ１２に送り、コンピユータ１２はその変位
量に基づいてドラム１の回転数を演算し、その演
算値を制御装置１３を介してＤ／Ａ変換を行な
い、変換された信号をドラムの可変速モータ１ｂ
に送つてモータ１ｂの回転数を制御する。 Figure 1 shows the equipment for this automatic operation. That is, the image sensor 11 detects the amount of displacement from the reference point 16 of the tip 15a of the molten metal reversing portion 5 in the sump 9, and sends this information to the computer 12, which then adjusts the position of the drum based on the amount of displacement. 1, the calculated value is subjected to D/A conversion via the control device 13, and the converted signal is sent to the variable speed motor 1b of the drum.
to control the rotation speed of motor 1b.
上記イメージセンサ１１は2048ビツトのライン
センサで、溶湯の有無を輝度の差として測定す
る。測定範囲１７は約100mm、0.05mm／ビツトの
精度である。イメージセンサ１１より上記測定値
を電気信号としてマイクロコンピユータ１２に送
り、コンピユータ１２において、２値化、平均化
あるいは曲面の補正等の画像処理を行ない、その
結果に基づきドラムの適正回転数を演算し、その
演算値が制御装置１３を介して可変速モータ１ｂ
に送られるのである。 The image sensor 11 is a 2048-bit line sensor that measures the presence or absence of molten metal as a difference in brightness. The measurement range 17 is approximately 100 mm, with an accuracy of 0.05 mm/bit. The image sensor 11 sends the measured value as an electrical signal to the microcomputer 12, where the computer 12 performs image processing such as binarization, averaging, or correction of the curved surface, and calculates the appropriate rotational speed of the drum based on the results. , the calculated value is sent to the variable speed motor 1b via the control device 13.
It is sent to.
本発明は、連続鋳造機において、イメージセン
サと、マイクロコンピユータと、制御装置とを備
え、自動運転できるように構成したので、運転員
が常時機側にあつて監視運転を行なう必要がなく
なるとともに、製品歩留りが向上し、コスト低減
に大きく貢献した。
According to the present invention, a continuous casting machine is equipped with an image sensor, a microcomputer, and a control device, and is configured to be able to operate automatically.Therefore, there is no need for an operator to constantly be on the machine side to monitor operation. This improved product yield and greatly contributed to cost reduction.
第１図は本発明の一実施例を示す連続鋳造機の
自動運転方法の構成図、第２図は連続鋳造機の湯
溜り部のａは側面断面図、ｂは平面図、第３図は
従来装置のａは側面図、ｂは平面図である。
図中、１はドラム、１ａはドラム溝、１ｂはド
ラム駆動用可変速モータ、２はスチールベルト、
３は樋、９は湯溜り部、１１はイメージセンサ、
１２はマイクロコンピユータ、１３は制御装置、
１５は逆走部、１５ａはその先端、１６は基準
点、１７はイメージセンサの測定範囲である。
Fig. 1 is a block diagram of an automatic operation method for a continuous casting machine showing an embodiment of the present invention, Fig. 2 is a side cross-sectional view of the trough portion of the continuous casting machine, b is a plan view, and Fig. 3 is a A is a side view and b is a plan view of the conventional device. In the figure, 1 is a drum, 1a is a drum groove, 1b is a variable speed motor for driving the drum, 2 is a steel belt,
3 is a gutter, 9 is a water reservoir, 11 is an image sensor,
12 is a microcomputer, 13 is a control device,
Reference numeral 15 denotes a reverse running portion, 15a its tip, 16 a reference point, and 17 a measurement range of the image sensor.
Claims (1)
覆つてドラム周速と同方向に同一速度で移動する
スチールベルトを、該スチールベルトの上端が上
記ドラムの外周部の最頂部近傍にあるように配置
し、上記ドラムの外周部とスチールベルトとで形
成される空間部に、上記ドラム外周部の上部に設
けた樋及びドラムの溝を介して金属溶湯を注入
し、連続して金属板を鋳造するように構成された
連続鋳造機において、 上記樋より、ドラムの幅より若干小さい幅で、
ドラムの溝に流入する溶湯により、ドラムの溝の
空間部入り口付近に形成される逆走部の先端の位
置を検出する手段と、ドラム回転数の制御手段と
を備え、 上記逆走部の先端の位置に応じてドラム回転数
を制御するように構成した ことを特徴とする連続鋳造機。 ２ 上記逆走部の先端位置検出手段にイメージセ
ンサを、ドラム回転数制御手段にマイクロコンピ
ユータとＤ／Ａ変換器とを使用した ことを特徴とする特許請求の範囲第１項記載の連
続鋳造機。[Scope of Claims] 1. A steel belt that touches the outer periphery of a drum in which a groove is formed, covers the groove, and moves at the same speed in the same direction as the circumferential speed of the drum, the upper end of the steel belt being on the outer periphery of the drum. The molten metal is injected into the space formed by the outer periphery of the drum and the steel belt through a gutter provided at the upper part of the outer periphery of the drum and a groove in the drum. , in a continuous casting machine configured to continuously cast metal plates, the gutter has a width slightly smaller than the width of the drum,
The apparatus comprises means for detecting the position of the tip of a reverse running part formed near the entrance of the space of the groove of the drum by the molten metal flowing into the groove of the drum, and means for controlling the number of rotations of the drum; A continuous casting machine characterized in that the drum rotation speed is controlled according to the position of the continuous casting machine. 2. The continuous casting machine according to claim 1, wherein an image sensor is used as the tip position detection means of the reverse running section, and a microcomputer and a D/A converter are used as the drum rotation speed control means. .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18968486A JPS6349346A (en) | 1986-08-14 | 1986-08-14 | Method for automatically operating continuous caster |
| GB8717049A GB2193667B (en) | 1986-08-14 | 1987-07-20 | Improvements in continuous casting installations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18968486A JPS6349346A (en) | 1986-08-14 | 1986-08-14 | Method for automatically operating continuous caster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6349346A JPS6349346A (en) | 1988-03-02 |
| JPH0337820B2 true JPH0337820B2 (en) | 1991-06-06 |
Family
ID=16245448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18968486A Granted JPS6349346A (en) | 1986-08-14 | 1986-08-14 | Method for automatically operating continuous caster |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS6349346A (en) |
| GB (1) | GB2193667B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212686B (en) * | 2013-05-13 | 2016-01-06 | 德阳宏广科技有限公司 | A kind of crystallizing wheel thermometer liquid level regulation device |
-
1986
- 1986-08-14 JP JP18968486A patent/JPS6349346A/en active Granted
-
1987
- 1987-07-20 GB GB8717049A patent/GB2193667B/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB8717049D0 (en) | 1987-08-26 |
| GB2193667A (en) | 1988-02-17 |
| JPS6349346A (en) | 1988-03-02 |
| GB2193667B (en) | 1990-05-09 |
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