JPH04362113A - Device for controlling charging rate of auxiliary material and alloy for converter - Google Patents
Device for controlling charging rate of auxiliary material and alloy for converterInfo
- Publication number
- JPH04362113A JPH04362113A JP3163608A JP16360891A JPH04362113A JP H04362113 A JPH04362113 A JP H04362113A JP 3163608 A JP3163608 A JP 3163608A JP 16360891 A JP16360891 A JP 16360891A JP H04362113 A JPH04362113 A JP H04362113A
- Authority
- JP
- Japan
- Prior art keywords
- input
- converter
- alloy
- electric power
- value
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 19
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 238000009628 steelmaking Methods 0.000 abstract description 4
- 238000005261 decarburization Methods 0.000 abstract 1
- 230000032258 transport Effects 0.000 abstract 1
- 238000011282 treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000005262 decarbonization Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Feedback Control In General (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は転炉における副材・合金
投入量制御装置に係わるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling the amount of auxiliary materials and alloys input into a converter.
【０００２】0002
【従来の技術】従来、転炉における副材・合金投入量制
御方法は供給駆動装置から転炉本体に投入物を投入する
際、投入ホッパーは投入物を一時的に貯蔵しており、投
入物は自重により供給駆動装置に流入するために投入物
の単位時間当たりの投入量は最初は多く除々に減少する
ことが一般的である。[Prior Art] Conventionally, in a method for controlling the amount of auxiliary material/alloy input in a converter, when inputting the input from the supply drive device to the converter main body, the input hopper temporarily stores the input. Since the input material flows into the supply drive device due to its own weight, the amount of input material per unit time is generally large at first and gradually decreases.
【０００３】0003
【従来技術の課題】従来技術の課題としては、脱炭素反
応、合金投入等の製鋼処理を行うときに、反応効率、合
金歩留りの点から投入物の単位時間当たりの投入量をほ
ぼ一定にする必要があるが、このような対応ができない
という問題があった。[Problems with the prior art] When performing steelmaking processes such as decarbonization reactions and alloying, the issues with the prior art are to keep the input amount per unit time almost constant from the viewpoint of reaction efficiency and alloy yield. Although it is necessary, there was a problem that such a response could not be taken.
【０００４】本発明は上記事情に基づいてなされたもの
であり、脱炭素反応、合金投入等の製鋼処理を行うとき
に、反応効率、合金歩留りの点から投入物の単位時間当
たりの投入量をほぼ一定にすることができる転炉におけ
る副材・合金投入量制御装置を提供することを目的とす
るものである。The present invention has been made based on the above-mentioned circumstances, and when performing steelmaking processes such as decarbonization reaction and alloy charging, the amount of input material per unit time is reduced from the viewpoint of reaction efficiency and alloy yield. The object of the present invention is to provide a control device for controlling the amount of auxiliary material/alloy input in a converter that can be kept almost constant.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めの本発明は、投入ホッパーと、電気エネルギーを機械
振動にかえて前記投入ホッパーからの投入物を搬送供給
する供給駆動手段と、前記投入ホッパー内の投入物の重
量を検出する秤量値検出手段と、前記秤量値検出手段か
らの信号により前記投入ホッパー内の投入物の重量変化
値を算出して前記供給駆動手段による投入物の搬送量を
制御する制御手段とを備えたことを特徴とするものであ
る。[Means for Solving the Problems] To achieve the above object, the present invention includes an input hopper, a supply drive means for converting electrical energy into mechanical vibration to transport and supply the input material from the input hopper, and A weighed value detection means for detecting the weight of the loaded material in the input hopper, and a weight change value of the loaded material in the input hopper is calculated based on a signal from the weighed value detection means, and the loaded material is transported by the supply drive means. The invention is characterized by comprising a control means for controlling the amount.
【０００６】[0006]
【実施例】以下、本発明を図面に基づいて説明する。図
１は本発明の一実施例である副材・合金投入量制御装置
を用いた転炉装置の概略構成図である。本実施例装置で
は、図１に示すように投入ホッパー７内の投入物８の重
量を秤量値検出器１により検出し、その出力信号を信号
変換器２と入出力信号処理３とを介して制御手段である
制御系プログラム本体９に送る。制御系プログラム本体
９はその信号を処理してその結果を入出力信号処理３と
電力制御器４とを介して供給駆動装置５に送り、転炉本
体６に投入物８を投入する。投入した結果は、ただちに
秤量値検出器１で検出する閉ループで制御される。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below based on the drawings. FIG. 1 is a schematic diagram of a converter apparatus using an auxiliary material/alloy input amount control device according to an embodiment of the present invention. In this embodiment, as shown in FIG. 1, the weight of the input material 8 in the input hopper 7 is detected by the weighed value detector 1, and its output signal is transmitted through the signal converter 2 and the input/output signal processor 3. It is sent to the control system program main body 9 which is a control means. The control system program main body 9 processes the signal, sends the result to the supply drive device 5 via the input/output signal processing 3 and the power controller 4, and charges the charge 8 into the converter main body 6. The input result is immediately detected by the weighed value detector 1 and controlled in a closed loop.
【０００７】秤量値検出器１は投入ホッパー７に入る副
材又は合金の重量を検出するものであってロードセル型
の荷重検出器である。信号変換器２はロードセルからの
抵抗値変化を電流値の変化に変換するものである。入出
力信号処理３は秤量値検出器１からの入力アナログ量を
デジタル量に変えて制御系プログラム本体９に伝え、ま
た、制御系プログラム本体９の結果デジタル量をアナロ
グ量に変えて出力する。電力制御器４は入出力信号処理
３のアナログ量出力でもって供給駆動装置５に与える電
力を制御するものである。供給駆動装置５は電力制御器
４からの電気エネルギーを機械振動にかえて投入物８を
搬送供給するものである。転炉本体６は主に、脱炭素反
応などの製鋼処理を行うものである。投入ホッパー７は
投入物８を一時的に貯蔵するものである。制御系プログ
ラム本体９は入出力信号処理３からの投入ホッパー７に
入っている副材又は合金の重量変化値を算出した後、重
量変化値と設定投入量とを比較演算し制御値を算出し、
入出力信号処理３に出力する。その結果は電力制御器４
を経て、供給駆動装置５から転炉本体６に投入物８の投
入量を決定するものである。The weighing value detector 1 detects the weight of the auxiliary material or alloy entering the input hopper 7, and is a load cell type load detector. The signal converter 2 converts a change in resistance value from a load cell into a change in current value. The input/output signal processing 3 converts the input analog quantity from the weighed value detector 1 into a digital quantity and transmits it to the control system program main body 9, and also converts the digital quantity as a result of the control system program main body 9 into an analog quantity and outputs it. The power controller 4 controls the power supplied to the supply drive device 5 using the analog output of the input/output signal processing 3. The supply drive device 5 converts the electric energy from the power controller 4 into mechanical vibration to transport and supply the input material 8. The converter main body 6 mainly performs steel manufacturing processes such as decarbonization reactions. The charging hopper 7 temporarily stores the charging material 8. The control system program main body 9 calculates the weight change value of the auxiliary material or alloy contained in the input hopper 7 from the input/output signal processing 3, and then calculates the control value by comparing the weight change value and the set input amount. ,
Output to input/output signal processing 3. The result is power controller 4
Through this process, the amount of charge 8 to be fed from the supply drive device 5 to the converter main body 6 is determined.
【０００８】図２は本発明による制御系プログラム本体
９でのフローチャートである。最初に、ステップＳ１で
投入ホッパー７の投入物８の単位時間当たりの投入重量
を示す投入量設定値Ｓ（ｋｇ／ｓｅｃ）を選択する。ス
テップＳ２で投入量設定値Ｓから供給駆動装置５の機械
能力で決まる定数値である初期制御基準値ＫＳを決定す
る。次に、ステップＳ３でデータ取込みｗｉ（ｋｇ／ｓ
ｅｃ）をし、ステップＳ４で前回値と今回値との差から
変化率Ｄ（ｋｇ／ｓｅｃ）を求める。
Ｄ＝（前回値−今回値）／データ取込み周期そして、ス
テップＳ５で投入設定値Ｓと変化率Ｄとの差である偏差
Ｄｎ＝Ｓ−Ｄを計算し、ステップＳ６において制御比率
演算でＯｎ＝Ｄｎ×ｋを計算する。ここで、ｋは制御比
率定数である。ステップＳ７で初期制御基準値ＫＳを更
新する。ＫＳ＝ＫＳ＋Ｏｎ
そして、ステップＳ８で更新した初期制御基準値ＫＳを
入出力信号処理３に出力する。ステップＳ９で制御終了
か否かを判定する。終了でなければ、ステップＳ３に戻
ってデータ取込みｗｉ（ｋｇ／ｓｅｃ）をし、上記ステ
ップＳ３以降の処理を繰り返す。FIG. 2 is a flow chart of the control system program body 9 according to the present invention. First, in step S1, an input amount setting value S (kg/sec) indicating the input weight of the input material 8 per unit time of the input hopper 7 is selected. In step S2, an initial control reference value KS, which is a constant value determined by the mechanical capacity of the supply drive device 5, is determined from the input amount setting value S. Next, in step S3, data acquisition wi (kg/s
ec), and in step S4, the rate of change D (kg/sec) is determined from the difference between the previous value and the current value. D = (previous value - current value) / data acquisition period Then, in step S5, the difference between the input setting value S and the rate of change D, the deviation Dn = S - D, is calculated, and in step S6, the control ratio calculation is performed to determine On = Calculate Dn×k. Here, k is a control ratio constant. In step S7, the initial control reference value KS is updated. KS=KS+On Then, the initial control reference value KS updated in step S8 is output to the input/output signal processing 3. In step S9, it is determined whether the control is finished. If the process is not completed, the process returns to step S3 to acquire data wi (kg/sec), and repeats the process from step S3 onwards.
【０００９】例えば、投入量設定値を１Ｔｏｎ／ｍｉｎ
、データ取込み周期を１ｓｅｃ、制御比率定数ｋを０．
８とし、供給駆動装置５の機械能力で決まる定数値であ
る初期制御基準値ＫＳを５０％に決定したとする。
このとき、投入量設定値Ｓは１６．７（ｋｇ／ｓｅｃ）
となる。今、データを取り込み、前回値が１０００ｋｇ
、今回値が９９９０ｋｇであったとすると、変化率Ｄは
１０ｋｇ／ｓｅｃとなる。設定値との差である偏差Ｄｎ
は、Ｄｎ＝１６．７（ｋｇ／ｓｅｃ）−１０（ｋｇ／ｓ
ｅｃ）＝６．７（ｋｇ／ｓｅｃ）となるので、制御比率
演算を行うとＯｎ＝６．７×０．８＝５．３６と計算さ
れる。初期制御基準値を更新すると、ＫＳ＝５０％＋５
．３６＝５５．３６％となり、この更新した初期制御基
準値ＫＳを入出力信号処理３に出力する。For example, if the input amount setting value is 1Ton/min.
, the data acquisition period is 1 sec, and the control ratio constant k is 0.
8, and the initial control reference value KS, which is a constant value determined by the mechanical capacity of the supply drive device 5, is determined to be 50%. At this time, the input amount setting value S is 16.7 (kg/sec)
becomes. I have now imported the data and the previous value is 1000 kg.
, if the current value is 9990 kg, the rate of change D is 10 kg/sec. Deviation Dn, which is the difference from the set value
is Dn=16.7(kg/sec)-10(kg/s
ec)=6.7 (kg/sec), so when the control ratio is calculated, On=6.7×0.8=5.36. When the initial control reference value is updated, KS = 50% + 5
．． 36=55.36%, and this updated initial control reference value KS is output to the input/output signal processing 3.
【００１０】続いて、ステップＳ３以降の処理を行い、
今回値が９９７０ｋｇであったとすると、変化率ＤはＤ
＝９９００（ｋｇ／ｓｅｃ）−９９７０（ｋｇ／ｓｅｃ
）＝２０（ｋｇ／ｓｅｃ）となる。設定値との差である
偏差Ｄｎは、Ｄｎ＝１６．７（ｋｇ／ｓｅｃ）−２０（
ｋｇ／ｓｅｃ）＝−３．３（ｋｇ／ｓｅｃ）となる。
制御比率演算でＯｎを計算すると、Ｏｎ＝−３．３×０
．８＝−２．６４となる。初期制御基準値を更新すると
、ＫＳ＝５５．３６＋（−２．６４）＝５２．７２％と
なり、この更新した初期制御基準値ＫＳを入出力信号処
理３に出力する。[0010] Next, the processing from step S3 onwards is performed,
If the current value is 9970 kg, the rate of change D is D
=9900(kg/sec)-9970(kg/sec)
)=20 (kg/sec). The deviation Dn, which is the difference from the set value, is Dn = 16.7 (kg/sec) - 20 (
kg/sec)=-3.3 (kg/sec). When On is calculated by control ratio calculation, On=-3.3×0
．． 8=-2.64. When the initial control reference value is updated, KS=55.36+(-2.64)=52.72%, and this updated initial control reference value KS is output to the input/output signal processing 3.
【００１１】このように本実施例では、制御系プログラ
ム本体が入出力信号処理からの投入ホッパーに入ってい
る副材又は合金の重量変化値Ｄを算出した後、重量変化
値Ｄと設定投入量Ｓとを比較演算し制御基準値ＫＳを算
出して、転炉本体に投入する投入物の量を決定している
ので、反応効率、合金歩留りの点から投入物の単位時間
当たりの投入量をほぼ一定にすることができる。As described above, in this embodiment, after the control system program calculates the weight change value D of the auxiliary material or alloy contained in the input hopper from the input/output signal processing, the weight change value D and the set input amount are calculated. The control standard value KS is calculated by comparing S with It can be kept almost constant.
【００１２】0012
【発明の効果】本発明により、脱炭素反応、合金投入等
の製鋼処理を行うときに、反応効率、合金歩留りの点か
ら投入物の単位時間当たりの投入量をほぼ一定にするこ
とができる。According to the present invention, when carrying out steelmaking processes such as decarbonization reactions and alloy charging, the amount of input materials per unit time can be made almost constant from the viewpoint of reaction efficiency and alloy yield.
【図１】本発明の一実施例である副材・合金投入量制御
装置を用いた転炉装置の概略構成図である。FIG. 1 is a schematic diagram of a converter apparatus using an auxiliary material/alloy input amount control device according to an embodiment of the present invention.
【図２】本実施例の制御系プログラム本体９における処
理手順を示すフローチャートである。FIG. 2 is a flowchart showing a processing procedure in the control system program main body 9 of this embodiment.
１ 秤量値検出器 ２ 信号変換器 ３ 入出力信号処理 ４ 電力制御器 ５ 供給駆動装置 ６ 転炉本体 ７ 投入ホッパー ８ 投入物 ９ 制御系プログラム本体 1 Weighing value detector 2 Signal converter 3 Input/output signal processing 4 Power controller 5 Supply drive device 6 Converter body 7 Input hopper 8. Inputs 9 Control system program body
Claims (1)
械振動にかえて前記投入ホッパーからの投入物を搬送供
給する供給駆動手段と、前記投入ホッパー内の投入物の
重量を検出する秤量値検出手段と、前記秤量値検出手段
からの信号により前記投入ホッパー内の投入物の重量変
化値を算出して前記供給駆動手段による投入物の搬送量
を制御する制御手段とを備えたことを特徴とする転炉に
おける副材・合金投入量制御装置。1. A charging hopper, a supply drive means for converting electrical energy into mechanical vibration to transport and supply the input material from the input hopper, and a weighing value detection means for detecting the weight of the input material in the input hopper. , a control means for calculating a weight change value of the input material in the input hopper based on a signal from the weighed value detection means and controlling an amount of the input material transported by the supply drive means. A control device for the amount of auxiliary materials and alloys input into the furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3163608A JPH04362113A (en) | 1991-06-07 | 1991-06-07 | Device for controlling charging rate of auxiliary material and alloy for converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3163608A JPH04362113A (en) | 1991-06-07 | 1991-06-07 | Device for controlling charging rate of auxiliary material and alloy for converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04362113A true JPH04362113A (en) | 1992-12-15 |
Family
ID=15777164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3163608A Withdrawn JPH04362113A (en) | 1991-06-07 | 1991-06-07 | Device for controlling charging rate of auxiliary material and alloy for converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04362113A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100838719B1 (en) * | 2001-09-27 | 2008-06-16 | 주식회사 포스코 | Slag agent throwing apparatus |
| CN103911483A (en) * | 2014-04-09 | 2014-07-09 | 中冶南方工程技术有限公司 | Method for controlling automatic alloy feeding of converter steel ladle |
-
1991
- 1991-06-07 JP JP3163608A patent/JPH04362113A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100838719B1 (en) * | 2001-09-27 | 2008-06-16 | 주식회사 포스코 | Slag agent throwing apparatus |
| CN103911483A (en) * | 2014-04-09 | 2014-07-09 | 中冶南方工程技术有限公司 | Method for controlling automatic alloy feeding of converter steel ladle |
| CN103911483B (en) * | 2014-04-09 | 2016-01-20 | 中冶南方工程技术有限公司 | A kind of converter steel alloy clading self-feeding control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980903 |