JP3313288B2 - Melting furnace operation control device - Google Patents
Melting furnace operation control deviceInfo
- Publication number
- JP3313288B2 JP3313288B2 JP30227596A JP30227596A JP3313288B2 JP 3313288 B2 JP3313288 B2 JP 3313288B2 JP 30227596 A JP30227596 A JP 30227596A JP 30227596 A JP30227596 A JP 30227596A JP 3313288 B2 JP3313288 B2 JP 3313288B2
- Authority
- JP
- Japan
- Prior art keywords
- value
- control device
- melting furnace
- input
- control
- 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 - Fee Related
Links
Landscapes
- Regulation And Control Of Combustion (AREA)
- Gasification And Melting Of Waste (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、溶融炉を自動運転
するための溶融炉運転制御装置に関する。The present invention relates to a melting furnace operation control device for automatically operating a melting furnace.
【０００２】[0002]
【従来の技術】従来、溶融炉においては、定格（一定
値）の処理量を確保することを最優先の目標として、そ
の運転を制御している。運転の制御に際しては、溶融炉
に設けた温度計や濃度計等のセンサー手段により、溶融
炉の現在の運転状況を示すプロセス値ＰＶを検出し、検
出したプロセス値ＰＶを指示調節計において設定値ＳＶ
と比較して操作値ＭＶを算出し、操作値ＭＶに基づいて
溶融炉の各操作手段（廃棄物の投入量を制御する切出手
段、燃焼空気量の調節手段等）を制御していた。2. Description of the Related Art Conventionally, the operation of a melting furnace has been controlled with the highest priority being to ensure a rated (constant value) throughput. In controlling the operation, a sensor value such as a thermometer or a densitometer provided in the melting furnace detects a process value PV indicating the current operation state of the melting furnace, and the detected process value PV is set to a set value in the indicating controller. SV
The operating value MV is calculated in comparison with the above, and each operating means of the melting furnace (cutting means for controlling the amount of waste input, adjusting means for the amount of combustion air, etc.) is controlled based on the operating value MV.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記した従来
の構成においては、定格以外の処理量で溶融炉の運転を
行いたい場合に、たとえば排ガスの性状の向上を第一義
的な目標として運転したいときにあっても、制御プログ
ラムが基本的に定格の処理量を確保することを第一義的
な目標とするように構成されているために、そのときの
状況に応じて優先目標を変更することができなかった。However, in the conventional configuration described above, when it is desired to operate the melting furnace with a processing amount other than the rated value, for example, the operation is performed with the primary goal of improving the properties of the exhaust gas. Even if you want to, you can change the priority target according to the situation at that time because the control program is basically configured to ensure the rated processing amount as the primary goal I couldn't.
【０００４】本発明は上記した課題を解決するものであ
り、その時々における運転員の意思によって制御におけ
る優先目標を変更して運転を行うことができる溶融炉運
転制御装置を提供することを目的とする。An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a melting furnace operation control device capable of changing a priority target in control according to an operator's intention at each time and performing operation. I do.
【０００５】[0005]
【課題を解決するための手段】上記した課題を解決する
ために、本発明の溶融炉運転制御装置は、溶融炉の運転
制御に係る各種の制御要素の各々を制御するための複数
の操作手段と、溶融炉の運転状態を示す指標としての各
種のプロセス値ＰＶを検出する複数のセンサ手段と、各
センサ手段からのプロセス値ＰＶの入力を受けて設定値
ＳＶを算出する自動燃焼制御装置と、各センサ手段から
のプロセス値ＰＶと自動燃焼制御装置からの設定値ＳＶ
の入力を受けて操作値ＭＶを算出し、算出した操作値Ｍ
Ｖを各操作手段に入力する指示調節計と、自動燃焼制御
装置に制御目標を指示する制御目標切換手段とを備え、
自動燃焼制御装置は、各制御目標毎に定めてなる複数の
ルールを予め登録してなり、切換手段から入力する制御
目標と各センサ手段から入力するプロセス値ＰＶを受け
てルールを選択し、当該ルールの下で設定値ＳＶを算出
するものである。In order to solve the above-mentioned problems, a melting furnace operation control device according to the present invention comprises a plurality of operating means for controlling each of various control elements related to the operation control of the melting furnace. A plurality of sensor means for detecting various process values PV as an index indicating the operation state of the melting furnace; an automatic combustion control device for receiving a process value PV from each sensor means to calculate a set value SV; , The process value PV from each sensor means and the set value SV from the automatic combustion control device
, The operation value MV is calculated, and the calculated operation value M is calculated.
An instruction controller for inputting V to each operating means, and control target switching means for instructing the automatic combustion control device on a control target,
The automatic combustion control device has a plurality of
A rule is registered in advance, a rule is selected based on a control target input from the switching means and a process value PV input from each sensor means , and a set value SV is calculated under the rule .
【０００６】[0006]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。図１において、溶融炉プラント１
は、例えば表面溶融炉であり、炉体内に堆積する廃棄物
によって燃焼室の壁体を形成するとともに、炉体を構成
する部材の回転によって堆積した廃棄物を燃焼室内に切
り出すものである。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a melting furnace plant 1
Is a surface melting furnace, for example, which forms a wall of a combustion chamber with waste accumulated in the furnace body and cuts out the deposited waste into the combustion chamber by rotation of members constituting the furnace body.
【０００７】溶融炉プラント１は、運転制御に係る各種
の制御要素の各々を制御するために複数の操作手段を有
しており、制御要素としては、廃棄物の投入量、燃焼空
気量などがあり、操作手段としては、廃棄物の投入量を
制御する切出手段（炉体の回転を制御して切出量を制御
する）、送風機、ダンパ装置、バルブなどがある。溶融
炉プラント１には、溶融炉の運転状態を示す指標として
の各種のプロセス値ＰＶ、例えば排ガス温度、排ガス中
のＣＯ濃度、燃焼室への送風量などを検出する複数のセ
ンサ手段（温度計、風量計など）が設けてある。[0007] The melting furnace plant 1 has a plurality of operating means for controlling each of various control elements related to the operation control. The control elements include a waste input amount, a combustion air amount, and the like. There are operation means such as cutout means for controlling the input amount of waste (controlling the rotation of the furnace body to control the cutout amount), a blower, a damper device, and a valve. The melting furnace plant 1 includes a plurality of sensor means (thermometers) for detecting various process values PV as indicators indicating the operating state of the melting furnace, for example, exhaust gas temperature, CO concentration in the exhaust gas, and the amount of air blown into the combustion chamber. , An anemometer, etc.).
【０００８】自動燃焼制御装置２は、予め登録した複数
の制御ルールに基づいて各操作手段を制御するものであ
り、複数の制御ルールが選択可能に設定してある。各制
御ルールは、後述する制御目標切換手段から入力する制
御目標と、各センサ手段から入力するプロセス値ＰＶを
受けて設定値ＳＶを算出する手順を記述したものであ
る。制御目標には、通常運転、処理量減、排ガス性状の
向上などがあり、設定値ＳＶの算出手順を規定する制御
ルールの例としては下記のものがある。 １．ＩＦ 制御目標＝通常運転 ＡＮＤ 廃棄物投入量
（プロセス値）＝１．０ ＡＮＤ 排ガスＣＯ濃度（プロセス値）＝並 ＴＨＥＮ 現状維持（前回のＳＶ値を今回も出力） ２．ＩＦ 制御目標＝処理量減 ＡＮＤ 廃棄物投入量
（プロセス値）＝１．０ ＡＮＤ 排ガスＣＯ濃度（プロセス値）＝並 ＴＨＥＮ 炉回転数＝減 ＡＮＤ 燃焼空気量＝減 ３．ＩＦ 制御目標＝排ガス性状向上 ＡＮＤ 廃棄物
投入量（プロセス値）＝１．０ ＡＮＤ 排ガスＣＯ濃
度（プロセス値）＝並 ＴＨＥＮ 燃焼空気量＝増 ＡＮＤ 燃焼空気温度＝低 指示調節計３は、溶融炉プラント１の各センサ手段から
のプロセス値ＰＶと自動燃焼制御装置２からの設定値Ｓ
Ｖの入力を受けて操作値ＭＶを算出するものであり、算
出した操作値ＭＶを溶融炉プラント１の各操作手段に入
力する。The automatic combustion control device 2 controls each operation means based on a plurality of control rules registered in advance, and a plurality of control rules are set to be selectable. Each control rule describes a procedure for calculating a set value SV in response to a control target input from a control target switching unit described later and a process value PV input from each sensor unit. The control target includes normal operation, reduction of the processing amount, improvement of the exhaust gas properties, and the like. Examples of the control rules that define the calculation procedure of the set value SV include the following. 1. 1. IF control target = normal operation AND waste input amount (process value) = 1.0 AND exhaust gas CO concentration (process value) = average THEN Maintain current status (previous SV value is also output this time) 2. IF control target = processing amount reduction AND waste input amount (process value) = 1.0 AND exhaust gas CO concentration (process value) = normal THEN furnace speed = reduction AND combustion air amount = reduction IF control target = improve exhaust gas properties AND Waste waste input (process value) = 1.0 AND exhaust gas CO concentration (process value) = normal THEN combustion air volume = increase AND combustion air temperature = low The process value PV from each sensor means of the plant 1 and the set value S from the automatic combustion control device 2
The operation value MV is calculated in response to the input of V, and the calculated operation value MV is input to each operation means of the melting furnace plant 1.
【０００９】制御目標切換手段４は、自動燃焼制御装置
２に制御目標を指示するものであって、運転員５の選択
した指示にしたがって選択指示信号を自動燃焼制御装置
２に入力する。The control target switching means 4 instructs the automatic combustion control device 2 to specify a control target, and inputs a selection instruction signal to the automatic combustion control device 2 in accordance with an instruction selected by the operator 5.
【００１０】上記した構成により、運転員５が通常運転
を意図する場合にあっては、制御目標切換手段４から自
動燃焼制御装置２へ「通常運転」を制御目標に設定する
選択指示信号を入力する。この状態において、自動燃焼
制御装置２は、「通常運転」を維持するように制御ルー
ルを実行し、溶融炉プラント１の各センサ手段から入力
する各種のプロセス値ＰＶを受けて各々の設定値ＳＶ値
を算出する。各指示調節計３は、流動床プラント１の各
センサ手段からのプロセス値ＰＶを受けて自動燃焼制御
装置２からの設定値ＳＶに見合う操作値ＭＶを算出し、
算出した操作値ＭＶを各操作手段に指示する。With the above configuration, when the operator 5 intends to perform normal operation, a selection instruction signal for setting “normal operation” as a control target is input from the control target switching means 4 to the automatic combustion control device 2. I do. In this state, the automatic combustion control device 2 executes a control rule so as to maintain “normal operation”, receives various process values PV input from each sensor unit of the melting furnace plant 1, and sets each set value SV. Calculate the value. Each of the indicating controllers 3 receives the process value PV from each sensor means of the fluidized bed plant 1 and calculates an operation value MV corresponding to the set value SV from the automatic combustion control device 2,
The calculated operation value MV is instructed to each operation means.
【００１１】運転員５が状況に応じて制御目標の変更を
意図する場合には、制御目標切換手段４を操作し、目的
とする制御目標を選択指示するための信号を自動燃焼制
御装置２へ入力し、例えば「排ガス性状向上」を選択す
る。この状態において、自動燃焼制御装置２は、「排ガ
ス性状向上」を維持するように制御ルールを実行する。
つまり、「通常運転」モードでは処理量を定格に維持す
ることを優先していたが、「排ガス性状向上」モードで
は排ガスの性状を向上させることを優先事項とするため
に、燃焼空気量の増加や燃焼空気温度を高くすることを
指向する制御を行う。When the operator 5 intends to change the control target according to the situation, the operator operates the control target switching means 4 and sends a signal for selecting and instructing the target control target to the automatic combustion control device 2. Input, and select, for example, “exhaust gas property improvement”. In this state, the automatic combustion control device 2 executes the control rule so as to maintain “exhaust gas property improvement”.
In other words, in the "normal operation" mode, priority was given to maintaining the processing amount at the rated value, but in the "exhaust gas property improvement" mode, an increase in the amount of combustion air was required to improve the exhaust gas properties. And control to increase the combustion air temperature.
【００１２】[0012]
【発明の効果】以上述べたように本発明によれば、制御
目標を制御ルールの条件式に組み込むことにより、その
時々における運転員の意思を反映した制御目標に応じて
適正な運転制御を行うことができる。As described above, according to the present invention, by incorporating the control target into the conditional expression of the control rule, appropriate operation control is performed in accordance with the control target reflecting the intention of the operator at each time. be able to.
【図１】本発明の実施形態を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
【符号の説明】 １ 溶融炉プラント ２ 自動燃焼制御装置 ３ 指示調節計 ４ 制御目標切換手段 ５ 運転員[Description of Signs] 1 melting furnace plant 2 automatic combustion control device 3 indicating controller 4 control target switching means 5 operator
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平８−296823（ＪＰ，Ａ) 特開 平７−73968（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F23N 5/00 F27B 3/28 F23G 5/00 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-296823 (JP, A) JP-A-7-73968 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) F23N 5/00 F27B 3/28 F23G 5/00
Claims (1)
の各々を制御するための複数の操作手段と、溶融炉の運
転状態を示す指標としての各種のプロセス値ＰＶを検出
する複数のセンサ手段と、各センサ手段からのプロセス
値ＰＶの入力を受けて設定値ＳＶを算出する自動燃焼制
御装置と、各センサ手段からのプロセス値ＰＶと自動燃
焼制御装置からの設定値ＳＶの入力を受けて操作値ＭＶ
を算出し、算出した操作値ＭＶを各操作手段に入力する
指示調節計と、自動燃焼制御装置に制御目標を指示する
制御目標切換手段とを備え、 自動燃焼制御装置は、各制御目標毎に定めてなる複数の
ルールを予め登録してなり、切換手段から入力する制御
目標と各センサ手段から入力するプロセス値ＰＶを受け
てルールを選択し、当該ルールの下で設定値ＳＶを算出
することを特徴とする溶融炉運転制御装置。1. A plurality of operation means for controlling each of various control elements related to the operation control of a melting furnace, and a plurality of sensors for detecting various process values PV as an index indicating an operation state of the melting furnace. Means, an automatic combustion control device for calculating the set value SV by receiving the input of the process value PV from each sensor means, and receiving the process value PV from each sensor means and the input of the set value SV from the automatic combustion control device. Operating value MV
And an instruction controller for inputting the calculated operation value MV to each operating means, and control target switching means for instructing the automatic combustion control device to indicate a control target. The automatic combustion control device is provided for each control target. Defined multiple
A rule is registered in advance, a rule is selected in response to a control target input from the switching means and a process value PV input from each sensor means , and a set value SV is calculated under the rule. Furnace operation control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30227596A JP3313288B2 (en) | 1996-11-14 | 1996-11-14 | Melting furnace operation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30227596A JP3313288B2 (en) | 1996-11-14 | 1996-11-14 | Melting furnace operation control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10141617A JPH10141617A (en) | 1998-05-29 |
| JP3313288B2 true JP3313288B2 (en) | 2002-08-12 |
Family
ID=17907052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30227596A Expired - Fee Related JP3313288B2 (en) | 1996-11-14 | 1996-11-14 | Melting furnace operation control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3313288B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100906016B1 (en) | 2007-10-23 | 2009-07-06 | 김호빈 | Automated melting system and method |
| US9740214B2 (en) | 2012-07-23 | 2017-08-22 | General Electric Technology Gmbh | Nonlinear model predictive control for chemical looping process |
-
1996
- 1996-11-14 JP JP30227596A patent/JP3313288B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10141617A (en) | 1998-05-29 |
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