JPS6367096B2 - - Google Patents
Info
- Publication number
- JPS6367096B2 JPS6367096B2 JP19457982A JP19457982A JPS6367096B2 JP S6367096 B2 JPS6367096 B2 JP S6367096B2 JP 19457982 A JP19457982 A JP 19457982A JP 19457982 A JP19457982 A JP 19457982A JP S6367096 B2 JPS6367096 B2 JP S6367096B2
- Authority
- JP
- Japan
- Prior art keywords
- amount
- evaporation
- air
- waste
- incinerator
- 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
- 230000008020 evaporation Effects 0.000 claims description 25
- 238000001704 evaporation Methods 0.000 claims description 25
- 238000002485 combustion reaction Methods 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000002912 waste gas Substances 0.000 claims description 10
- 239000002918 waste heat Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000004056 waste incineration Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明は廃熱ボイラを有する都市ごみ焼却設備
の運転方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of operating a municipal waste incineration facility having a waste heat boiler.
従来この種の設備の運転に当たつては、ボイラ
の蒸発量を所定の設定値になるよう制御するの
に、蒸発量を検出し焼却炉に供給される都市ごみ
の供給量を制御していた。しかしながら、供給さ
れる都市ごみの質は不均一であるためその発熱量
は常に変化するものである。これに対し、ボイラ
などの熱容量が大きいために蒸発量の変動は速応
性がなく、ごみ質の変動にして、蒸発量を所定の
値に保ち、かつ安定燃焼を行なうことは困難であ
つた。 Conventionally, when operating this type of equipment, the amount of evaporation from the boiler was controlled to a predetermined set value by detecting the amount of evaporation and controlling the amount of municipal waste supplied to the incinerator. Ta. However, since the quality of the supplied municipal waste is non-uniform, its calorific value constantly changes. On the other hand, due to the large heat capacity of boilers and the like, fluctuations in the amount of evaporation do not respond quickly, and it has been difficult to maintain the amount of evaporation at a predetermined value and to perform stable combustion due to fluctuations in the quality of the waste.
本発明は、従来の方法の上記の欠点を除き、ご
み質の変動に速応し、安定で確実な蒸発量制御を
行なうことができる都市ごみ焼却設備の運転方法
を提供することを目的とするものである。 It is an object of the present invention to provide a method for operating a municipal waste incineration facility that eliminates the above-mentioned drawbacks of conventional methods and can quickly respond to changes in waste quality and perform stable and reliable evaporation control. It is something.
本発明は、焼却炉と、該焼却炉の燃焼廃ガスを
利用する廃熱ボイラを有する都市ごみ焼却設備の
運転方法において、前記ボイラの蒸発量を検出
し、設定蒸発量と比較して前記焼却炉の燃焼用空
気量を制御する空気量制御と、前記燃焼廃ガス中
の酸素濃度を検出し設定濃度と比較して前記焼却
炉に供給される都市ごみの供給量を制御するごみ
供給量制御とを併せ行なつて前記ボイラの蒸発量
を制御することを特徴とする都市ごみ燃焼設備の
運転方法である。 The present invention provides a method for operating a municipal waste incineration facility having an incinerator and a waste heat boiler that utilizes combustion waste gas from the incinerator, in which the amount of evaporation of the boiler is detected, and the amount of evaporation is compared with a set amount of evaporation. air amount control that controls the amount of combustion air in the furnace; and garbage supply amount control that detects the oxygen concentration in the combustion waste gas and compares it with a set concentration to control the amount of municipal waste supplied to the incinerator. This is a method of operating a municipal waste combustion facility, characterized in that the amount of evaporation of the boiler is controlled by performing the following steps together.
本発明の実施例を図面を用いて説明する。 Embodiments of the present invention will be described using the drawings.
第１図においてＡは焼却炉、Ｂはその燃焼廃ガ
スを利用する廃熱ボイラ、Ｃは都市ごみ供給源で
あり、例えばごみピツトである。Ｄはホツパ、Ｅ
はごみ定量供給機である。Ｆは燃焼用空気源、Ｇ
は高圧蒸気だめ、Ｐは集塵機、Ｈは煙突である。 In FIG. 1, A is an incinerator, B is a waste heat boiler that utilizes the combustion waste gas, and C is a municipal waste supply source, such as a garbage pit. D is hoppa, E
is a garbage metering feeder. F is the combustion air source, G
is a high-pressure steam tank, P is a dust collector, and H is a chimney.
本実施例は、次の如き制御システムが組み合わ
されている。 In this embodiment, the following control systems are combined.
一つは、廃熱ボイラＢの蒸発量を検出して焼却
炉の燃焼用空気量を制御する空気量制御システム
である。このシステムは、次の如くである。廃熱
ボイラより発生する蒸発の蒸発量検出端１８にて
蒸発量を検出し、蒸発量伝送器１９にて測定値
PV５を蒸気量調節計２０に送り、予め設定され
た蒸発量設定値SV５になるように、信号MV５
が出力される。２１は空気量基準設定器であり、
平均ごみ発熱量と、基準ごみ処理量W0に基づ
いて計算して空気量の基準設定値を定めて、信号
MV８を発する。 One is an air amount control system that detects the amount of evaporation in the waste heat boiler B and controls the amount of combustion air in the incinerator. This system is as follows. The evaporation amount of evaporation generated from the waste heat boiler is detected by the evaporation detection end 18, and the measured value is sent by the evaporation amount transmitter 19.
PV5 is sent to the steam amount controller 20, and the signal MV5 is sent so that the preset evaporation amount set value SV5 is reached.
is output. 21 is an air amount standard setting device;
Calculate the average waste calorific value and the standard waste processing amount W 0 to determine the standard setting value for the amount of air, and then set the signal.
Emit MV8.
なお、ここでいう空気量とは、一次空気量と二
次空気量との総和を意味するものであり、そして
焼却炉Ａが流動層式である場合は、一次空気量即
ち炉床から供給される燃焼用空気量は最低流動化
風量を下廻つてはならない。 Note that the amount of air here means the sum of the amount of primary air and the amount of secondary air, and if the incinerator A is a fluidized bed type, the amount of primary air, that is, the amount of air supplied from the hearth. The amount of combustion air used for combustion must not be less than the minimum fluidizing air amount.
２２は空気設定演算器であり、信号MV８に対
して信号MV５を比較し演算して信号MV９を出
力し、空気量調節計１１における空気量設定値
SV３を変化せしめる制御を行なう。燃焼用の空
気量は空気量検出端９により検出された空気量伝
送器１０により信号PV３が出力される。空気量
調節計１１においては、空気量設定値SV３に対
し信号PV３を比較し演算して信号MV３が出力
された空気量操作端１２であるダンパが開閉操作
され、空気量が制御される。 22 is an air setting calculator, which compares the signal MV5 with the signal MV8, calculates it, outputs the signal MV9, and sets the air amount setting value in the air amount controller 11.
Performs control to change SV3. The amount of air for combustion is detected by the air amount detection end 9, and the air amount transmitter 10 outputs a signal PV3. In the air amount controller 11, the damper, which is the air amount operating end 12, is operated to open and close, and the signal PV3 is compared with the air amount setting value SV3, and the signal MV3 is output.
空気量設定演算器２２における演算内容は基準
設定の許容幅を±Ｂ％とすれば、第２図の如くな
り、数式で示せば出力MV９は、
MV9＝MV8＋Ｂ（2MV5−１）
となる。 The content of the calculation in the air amount setting calculator 22 is as shown in FIG. 2, assuming that the allowable width of the standard setting is ±B%, and the output MV9 is expressed as MV9=MV8+B(2MV5-1).
次の制御システムは、廃熱ボイラＢの燃焼廃ガ
ス中の酸素濃度を検出して焼却炉Ａに供給される
都市ごみの供給量を制御するごみ供給量制御シス
テムである。このシステムは次の如くである。焼
却炉Ａからの燃焼廃ガス中の酸素濃度を酸素濃度
検出端１３により検出され酸素濃度伝送器１４に
より信号PV４が出力し、酸素濃度調節計１５に
おいて、予め設定された酸素濃度設定値SV４に
なるように信号MV４が出力される。１６はごみ
定量供給機Ｅの回転数基準設定器であり、ごみビ
ツト残量を適正に保つための基準処理量W0に基
づいて計算して回転数の基準設定値を定めて信号
MV６を発する。１７は回転設定演算器であり、
信号MV６に対し、信号MV４を比較し演算して
信号MV７を出力し、回転数調節計７における回
転数設定値SV２を変化せしめる制御を行なう。
ごみ定量供給機Ｅの回転数は駆動部８にて検出さ
れ回転数伝送器６により信号PV２が出力される。
回転数調節計７においては回転数設定値SV２に
対して信号PV２を比較し、演算して信号MV２
が出力され、操作端である駆動部８が操作され、
燃焼廃ガス中の酸素濃度が所定の値となるように
ごみ供給量の制御が行なわれる
回転数設定演算器１７における演算内容は、基
準設定の許容幅を±Ａ％とすれば、第３図の如く
なり、数式で示せば、出力MV７は、
MV7＝MV6−Ａ（2MV4−１）
となる。 The next control system is a waste supply amount control system that detects the oxygen concentration in the combustion waste gas of the waste heat boiler B and controls the amount of municipal waste supplied to the incinerator A. This system is as follows. The oxygen concentration in the combustion waste gas from the incinerator A is detected by the oxygen concentration detection end 13, the oxygen concentration transmitter 14 outputs a signal PV4, and the oxygen concentration controller 15 adjusts the oxygen concentration to a preset oxygen concentration value SV4. Signal MV4 is output so that Reference numeral 16 denotes a rotation speed standard setting device for the waste metering feeder E, which calculates a standard setting value for the rotation speed based on the standard processing amount W0 to maintain the appropriate amount of waste bits and outputs a signal.
Emit MV6. 17 is a rotation setting calculator;
The signal MV4 is compared and calculated with respect to the signal MV6, and a signal MV7 is outputted, thereby performing control to change the rotational speed setting value SV2 in the rotational speed controller 7.
The rotation speed of the waste quantitative feeder E is detected by the drive unit 8, and the rotation speed transmitter 6 outputs a signal PV2.
The rotation speed controller 7 compares the signal PV2 with the rotation speed setting value SV2 and calculates the signal MV2.
is output, the drive unit 8 which is the operating end is operated,
The amount of waste supplied is controlled so that the oxygen concentration in the combustion waste gas becomes a predetermined value.The content of the calculation in the rotation speed setting calculator 17 is as shown in Fig. 3, assuming that the allowable range of standard setting is ±A%. If expressed mathematically, the output MV7 will be as follows: MV7=MV6-A (2MV4-1).
以上の二つの制御システム、即ち、蒸発量を検
出して空気量を制御する空気量制御システムと、
廃ガスの酸素濃度を検出してごみ供給量を制御す
るごみ供給量制御システムとを組み合わせると、
効果的な蒸発量定量制御を行なうことができる。 The above two control systems, namely, an air amount control system that detects the amount of evaporation and controls the amount of air;
When combined with a garbage supply amount control system that detects the oxygen concentration of waste gas and controls the amount of garbage supplied,
Effective quantitative control of evaporation amount can be performed.
即ち、廃熱ボイラＢの蒸発量を検出し、空気量
制御システムにより燃焼空気量を制御する。空気
量の変化に応じて燃焼廃ガス中の酸素濃度が変化
し、これを検出してごみ供給量制御システムによ
りごみの供給量を制御する。ごみの供給量の変化
に応じてボイラの蒸発量が変る。 That is, the amount of evaporation from the waste heat boiler B is detected, and the amount of combustion air is controlled by the air amount control system. The oxygen concentration in the combustion waste gas changes in response to changes in the amount of air, and this is detected and the waste supply amount control system controls the amount of waste supplied. The amount of evaporation from the boiler changes depending on the amount of waste supplied.
このように二つの制御システムを併用すると、
酸素濃度変化は、空気量変化及びごみ供給量変化
に対し速応性があるので、酸素濃度を一定にする
ようごみ供給量を制御することにより蒸発量を所
定の値に保つ制御を安定して容易に行なうことが
できる。 When the two control systems are used together in this way,
Changes in oxygen concentration have a quick response to changes in air volume and garbage supply amount, so by controlling the garbage supply amount to keep the oxygen concentration constant, it is possible to stably and easily maintain the evaporation amount at a predetermined value. can be done.
本発明により、ごみ質の変動にも速応して安定
した確実な蒸発量制御を行なうことができ、実用
上極めて大なる効果を奏する。 According to the present invention, stable and reliable evaporation amount control can be performed in response to fluctuations in waste quality, which is extremely effective in practical use.
図面は本発明の実施例に関するもので、第１図
はフローシート、第２図はごみ定量供給機回転数
設定演算器の演算方式を示すグラフ、第３図は燃
焼用空気量設定演算器の演算方式を示すグラフで
ある。
１……ごみ供給量検出端、２……ごみ供給量伝
送器、３……ごみ供給量演算器（移動平均）、４
……監視装置、５……オペレータガイド、６……
回転数伝送器、７……回転数調節計、８……駆動
部、９……空気量検出端、１０……空気量伝送
器、１１……空気量調節計、１２……空気量操作
端、１３……酸素濃度検出端、１４……酸素濃度
伝送器、１５……酸素濃度調節計、１６……回転
数基準設定器、１７……回転数設定演算器、１８
……蒸気量検出端、１９……蒸気量伝送器、２０
……蒸気量調節計、２１……空気量基準設定器、
２２……空気量設定演算器。
The drawings relate to embodiments of the present invention, and Fig. 1 is a flow sheet, Fig. 2 is a graph showing the calculation method of the garbage metering machine rotation speed setting calculator, and Fig. 3 is a graph showing the calculation method of the combustion air amount setting calculator. It is a graph showing a calculation method. 1... Garbage supply amount detection end, 2... Garbage supply amount transmitter, 3... Garbage supply amount calculator (moving average), 4
...Monitoring device, 5...Operator guide, 6...
Rotation speed transmitter, 7...Rotation speed controller, 8...Drive unit, 9...Air amount detection end, 10...Air amount transmitter, 11...Air amount controller, 12...Air amount operation end , 13...Oxygen concentration detection end, 14...Oxygen concentration transmitter, 15...Oxygen concentration controller, 16...Rotation speed reference setting device, 17...Rotation speed setting calculator, 18
...Steam amount detection end, 19...Steam amount transmitter, 20
...Steam amount controller, 21...Air amount standard setting device,
22... Air amount setting calculator.
Claims (1)
廃熱ボイラを有する都市ごみ焼却設備の運転方法
において、前記ボイラの蒸発量を検出し、設定蒸
発量と比較して前記焼却炉の燃焼用空気量を制御
する空気量制御と、前記燃焼廃ガス中の酸素濃度
を検出し設定濃度と比較して前記焼却炉に供給さ
れる都市ごみの供給量を制御するごみ供給量制御
とを併せ行なつて前記ボイラの蒸発量を制御する
ことを特徴とする都市ごみ焼却設備の運転方法。1. In a method of operating a municipal waste incineration facility having an incinerator and a waste heat boiler that utilizes combustion waste gas from the incinerator, the amount of evaporation of the boiler is detected and compared with a set amount of evaporation to determine the combustion rate of the incinerator. A combination of air amount control that controls the amount of air used, and garbage supply amount control that detects the oxygen concentration in the combustion waste gas and compares it with a set concentration to control the amount of municipal waste supplied to the incinerator. A method for operating a municipal waste incineration facility, characterized in that the amount of evaporation of the boiler is controlled by controlling the amount of evaporation of the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19457982A JPS5984022A (en) | 1982-11-08 | 1982-11-08 | Operation of city garbage incinerating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19457982A JPS5984022A (en) | 1982-11-08 | 1982-11-08 | Operation of city garbage incinerating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5984022A JPS5984022A (en) | 1984-05-15 |
| JPS6367096B2 true JPS6367096B2 (en) | 1988-12-23 |
Family
ID=16326885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19457982A Granted JPS5984022A (en) | 1982-11-08 | 1982-11-08 | Operation of city garbage incinerating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5984022A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3424314C1 (en) * | 1984-07-02 | 1986-01-09 | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn | Control procedure for steam generators |
| DE3825933A1 (en) * | 1988-07-29 | 1990-02-01 | Martin Umwelt & Energietech | METHOD FOR CONTROLLING THE FIRE PERFORMANCE IN COMBUSTION PLANTS |
| EP2267366B1 (en) * | 2008-03-06 | 2015-06-03 | IHI Corporation | Method and apparatus of controlling combustion in oxyfuel combustion boiler |
-
1982
- 1982-11-08 JP JP19457982A patent/JPS5984022A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5984022A (en) | 1984-05-15 |
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