JPS6246118A - Method to control combustion of incinerator for separated refuse - Google Patents
Method to control combustion of incinerator for separated refuseInfo
- Publication number
- JPS6246118A JPS6246118A JP18553585A JP18553585A JPS6246118A JP S6246118 A JPS6246118 A JP S6246118A JP 18553585 A JP18553585 A JP 18553585A JP 18553585 A JP18553585 A JP 18553585A JP S6246118 A JPS6246118 A JP S6246118A
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- Japan
- Prior art keywords
- combustion
- waste
- refuse
- temperature
- 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.)
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- Incineration Of Waste (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は高分子系ごみの含有率の高い分別ごみを回転
キルン、後燃焼火格子及びガス混合室を含むごみ焼却炉
でガス化燃焼させる場合の燃焼制御方法に関するもので
ある。[Detailed Description of the Invention] [Technical Field of the Invention] This invention provides a method for gasifying and burning separated waste with a high content of polymeric waste in a waste incinerator including a rotary kiln, a post-combustion grate, and a gas mixing chamber. The present invention relates to a combustion control method.
！発明の技術的背景〕
従来、通常の都市ごみを燃焼火格子上で燃焼させ、未燃
分を回転キルンを利用して後燃焼させるごみ焼却炉、が
知られているが、分別ごみを回転キルンと後燃焼火格子
とを組合せた焼却炉で焼却する実用例はない。! [Technical Background of the Invention] Conventionally, waste incinerators have been known in which ordinary municipal waste is burned on a combustion grate and unburned waste is post-burned using a rotary kiln. There are no practical examples of incineration in an incinerator that combines a combustion grate and a post-combustion grate.
この発明は、ごみの安定した燃焼を長期に渡って維持す
ると共に、有害ガス、未燃ガスの発生を抑制する燃焼制
御方法を提供することを目的とするものである。An object of the present invention is to provide a combustion control method that maintains stable combustion of garbage over a long period of time and suppresses the generation of harmful gases and unburned gases.
この発明の分別ごみ焼却炉の燃焼制御方法の特徴は、高
分子系ごみの含有率の高い分別ごみを回転キルン、後燃
焼火格子及びガス混合室を含む焼却炉でがス化燃焼させ
る場合に、ごみ質及びごみ焼却量等をベースに、ごみ供
給プッシャ速度、回転キルン速度及び後燃焼火格子速度
並びに燃焼排ガスの再循環量、後燃焼空気量及びガス混
合空気量を自動設定し、これら設定値をごみ焼却炉内各
部温度及び燃焼排ガス中の０２％によって自動調整する
ことである。The combustion control method for a separated waste incinerator according to the present invention is characterized in that when separated waste with a high content of polymeric waste is incinerated in an incinerator including a rotary kiln, a post-combustion grate, and a gas mixing chamber, , automatically sets the waste feed pusher speed, rotary kiln speed, post-combustion grate speed, combustion exhaust gas recirculation amount, post-combustion air amount, and gas mixing air amount based on the waste quality, waste incineration amount, etc. The value is automatically adjusted according to the temperature of each part inside the waste incinerator and 0.2% of the combustion exhaust gas.
高分子系ごみの含有率の高い分別ごみを回転キルンで焼
却処理することにより、回転キルン内でごみの平均化を
図り、ごみの緩慢な熱分解、燃焼が行われるので、多少
のごみ質変動を吸収して安定な燃焼を行うことができる
。By incinerating separated waste with a high content of polymeric waste in a rotary kiln, the waste is evened out in the rotary kiln, and the waste undergoes slow thermal decomposition and combustion, so there may be slight fluctuations in waste quality. can be absorbed for stable combustion.
回転キルンの上記特性に加えて、ごみ供給プツシ易−速
度、回転キルン速度、再循環ガス量＃＋ヲ調節すること
により、炉内各部湿灰パターンを所定の状態に保ち安定
した熱分解燃焼を維持し、又ガス混合至内で二段燃焼全
完結する。In addition to the above-mentioned characteristics of the rotary kiln, by adjusting the waste feed push speed, rotary kiln speed, and recirculation gas amount, it is possible to maintain the wet ash pattern in each part of the furnace in a predetermined state and achieve stable pyrolysis combustion. The two-stage combustion is completely completed within the gas mixture.
本発明方法を実施するための装置の一例ｆｉ２１図のフ
ローシートにより説明すＳｏごみパ／力１１に投入され
たごみは、クレーン１２によりごみシュート１４に投入
される。この際ごみ投入量は荷重計１３により計量され
る。ごみ投入シュート１４にはごみレベル調節計１５が
設けられている。ごみシュート１４内のごみはごみ供給
プッシャー１６により回転キルン２１へ供給される。１
７はプッシャーの速度調節計である。回転キルン２１の
入口にはスタートバーナ２２が設けられてい５０２３は
回転キルン２１の速度調節計である。回転キルン２ノ内
の各部の温度は温度計２４により測定される。回転キル
ン２１に続いて、後燃焼火格子２６が設けられ、その速
度は速度調節計２８によって制御される。２７はガス混
合室で、各部の温度が温度計２９によって測定される。Garbage that has been put into the garbage tank 11, which will be explained with reference to the flow sheet of FIG. At this time, the amount of garbage input is measured by a load meter 13. A garbage level controller 15 is provided in the garbage input chute 14. The waste in the waste chute 14 is supplied to the rotary kiln 21 by a waste supply pusher 16. 1
7 is a pusher speed controller. A start burner 22 is provided at the entrance of the rotary kiln 21, and 5023 is a speed controller for the rotary kiln 21. The temperature of each part within the rotary kiln 2 is measured by a thermometer 24. Following the rotary kiln 21 is an afterburning grate 26 whose speed is controlled by a speed regulator 28 . 27 is a gas mixing chamber, and the temperature of each part is measured by a thermometer 29.
３０は、炉内ＩＴＶの画像処理により、後燃焼火格子２
６上のごみの燃え切り点を算定する燃え切り点検出器で
ある。燃焼排ガスの熱量はメイラ４１で回収集じんされ
た後、再循環ファン５１により回転キルン２ノの入口に
送給される。５２は再循環量の調節計、５３は温度計で
ある。また排ガス中の０２％が酸素濃度計４７で測定さ
れる。一方燃焼用空気は、押込ファン３１がら空気予熱
器３３を通って供給される。３２は吸込流量調節計、３
４は温度調節計である。スタートバーナ２２用の空気は
流量計３７により副足される。30 is a post-combustion grate 2 created by image processing of the in-furnace ITV.
This is a burnout point detector that calculates the burnout point of the garbage above. The calorific value of the combustion exhaust gas is collected by the mailer 41 and then sent to the inlet of the rotary kiln 2 by the recirculation fan 51. 52 is a recirculation amount controller, and 53 is a thermometer. Further, 0.2% in the exhaust gas is measured by an oxygen concentration meter 47. On the other hand, combustion air is supplied through a forced fan 31 and an air preheater 33 . 32 is a suction flow rate controller, 3
4 is a temperature controller. Air for the start burner 22 is supplemented by a flow meter 37.
また後燃焼用空気は流量調節計３５により調節され、ガ
ス混合室２７への混合空気短は流量調節計３６によって
調節されるようになっている。Further, the air for after-combustion is regulated by a flow rate controller 35, and the shortness of the mixed air to the gas mixing chamber 27 is regulated by a flow rate controller 36.
上記装置による制御を第２図に示すフローチャートによ
り説明する。Control by the above device will be explained with reference to the flowchart shown in FIG.
（イ）炉本体から廃熱メイラまでを一つの系として熱収
支計算全行い、ごみの低位発熱板（以下Ｈｕ ）を求め
る。(a) Perform all heat balance calculations from the furnace body to the waste heat mailer as one system, and find the lower heating plate (hereinafter referred to as Hu) of the waste.
ごみの炉内滞留時間は約２〜３時間であり、炉内へ切り
出されたばかりのごみから、数時間前に切り出されたご
み迄炉内の広範囲で燃焼しているので、総合的なごみ質
紫求める必要がある。The residence time of garbage in the furnace is about 2 to 3 hours, and the garbage that has just been cut into the furnace is burned in a wide area in the furnace, from the garbage that was cut out several hours ago, so the overall garbage quality is purple. need to ask.
従ってごみ投入時毎に炉内で燃焼したごみのＨｕ ｆ求
め、それ以前に求めた過去のＨｕを考慮してより正確な
ごみのＨｕ”ｊｉｇ出する。Therefore, each time garbage is input, the Hu f of the garbage burned in the furnace is determined, and a more accurate Hu''jig of the garbage is output by taking into consideration the past Hu determined previously.
Ｈｕ計算は例えば次のようにして行う。Hu calculation is performed, for example, as follows.
Ｈ” ＝’ （ＧＲｎ ｌ ＬＦＤＦｌ １ ＬＦＤＦ
２１ ＬＩＤＦ Ｐｔａ、 ｔｉ＋Ｇｓｙ ｔｇ ）
十ＫＧａｎ ’平均ごみ焼却量 （ム／ｈ）。H"=' (GRn l LFDFl 1 LFDF
21 LIDF Pta, ti+Gsy tg)
10 KGan 'Average waste incineration amount (mu/h).
荷重計１４のデータをもとに算出する。It is calculated based on the data of the load cell 14.
ＬＦＤＦｌ ”後燃焼空気量 （Ｎｍ’／ｈ）。LFDFl ”Post-combustion air amount (Nm’/h).
流量計３５より ＬＦＤＦ２ ”再燃焼空気ｆ （Ｎｍ３／ｈ）。From flow meter 35 LFDF2 "Re-combustion air f" (Nm3/h).
流量計３６より ｔａ：燃焼空気温度 （℃）。From flow meter 36 ta: Combustion air temperature (°C).
温度計３４より
Ｌ！ＩＩＩＩＦ ’再循環ガスｉ （Ｎｍ３／ｈ）
。L from thermometer 34! IIIF 'Recirculated gas i (Nm3/h)
.
流量計５２より ｔＲ：再循環ガス温度 （℃）。From flow meter 52 tR: Recirculation gas temperature (°C).
温度計５３より Ｇｓ：メイラ蒸発量 （―／ｈ）。From thermometer 53 Gs: Mayra evaporation amount (-/h).
流量計４２より ｔｇ：＆イラ出ロガス温度 （℃）。From flow meter 42 tg: & irradiation log gas temperature (°C).
温度計４３より
Ｋ ：定 数
さらに上式で算出されｆｃＨｕに対し、次の平滑化処理
を行い補正する。From the thermometer 43, K: Constant is calculated using the above equation, and fcHu is corrected by performing the following smoothing process.
（へ） （ｎ−１）
Ｈｕ ＝αＨｕ＋（１−α）Ｈｕ
店 ：今回のＨｕ計算結果
（ｎ−１）
Ｈｎ：前回の
α ：指数平滑係数（０≦αく１）
（ロ） 設定するごみ焼１ｉｉＧに対応するように、例
えば後述するごみ切り出し量制御（ごみ供給プッシャー
速度制御）及び回転キルン制御全行う。(to) (n-1) Hu = αHu + (1-α) Hu Store: Current Hu calculation result (n-1) Hn: Previous α: Exponential smoothing coefficient (0≦α×1) (b) Set In order to correspond to the garbage incineration 1iiG, for example, the garbage cutting amount control (garbage supply pusher speed control) and the rotary kiln control, which will be described later, are all performed.
０９ Ｈｕ 、 Ｇにより後燃焼空気ｉｔ （ＬｙＤｙ
ｌ ） ＋再混合空気ｔ （Ｌ、：、□）及び再循環ガ
スｔ （ＬＲ”ＤＦ）の基準値が算出され、自動的に設
定されます。09 After-combustion air it (LyDy
The reference values for + remixed air t (L, :, □) and recirculated gas t (LR”DF) are calculated and automatically set.
”Ｆ”ＤＦ １ ＝Ｌ１（Ｈｕｐ Ｇ） ｒ Ｌｙ：ｙ
２ ” Ｌ２ （Ｈｕ 、 Ｇ） 。"F" DF 1 = L1 (Hup G) r Ly:y
2” L2 (Hu, G).
ＬＲＤＦ ＝ ＬＲ（Ｈｕ、Ｇ）この内閲数Ｌ２及びＬ
３は計算機の学習機能によシリアルタイムで、第３図に
示す如くキルン内温度の最適点を選んだごみ質Ｈｕと焼
却ｔＧａの関数に更新される。LRDF = LR(Hu, G) This internal review number L2 and L
3 is updated in real time by the learning function of the computer to a function of waste quality Hu and incineration tGa, which selects the optimum point for the temperature inside the kiln, as shown in FIG.
に） ごみ投入毎にＨｕを算出し、（ロ）、（／→を繰
返す。) Calculate Hu for each garbage input, and repeat (B) and (/→).
（ホ） 常３時炉内ＩＴＶ画面により燃え切υ点制御を
行う。(E) Always perform burn-out υ point control using the in-furnace ITV screen at 3 o'clock.
（へ）炉内温度データを温度計２４．２９から読込み、
その変動を常時監視し、許容変動幅を越える場合には以
下の制御を行う。(to) Read the furnace temperature data from thermometer 24.29,
The fluctuation is constantly monitored, and if it exceeds the permissible fluctuation range, the following control is performed.
その際、炉出口０□僑を酸素渡度計４７によシ測定し、
その値も許容変動範囲内に常時維持されるよう、混合空
気量を二次的に自動制御する。At that time, the temperature at the furnace outlet 0□ was measured using an oxygen flux meter 47,
The amount of mixed air is secondarily automatically controlled so that the value is always maintained within the allowable fluctuation range.
■ 回転キルン内温度制御
回転キルン２１内温度（長さ方向に数点測定）の分布全
常時温度計２４によシ計測し、所定の燃焼温度・譬ター
ンが許容範囲内に維持されるよう、
ごみ供給プッシャー速度：ｖ。■ Temperature control inside the rotary kiln Distribution of the temperature inside the rotary kiln 21 (measured at several points in the length direction) Measured by the thermometer 24 all the time, so that the predetermined combustion temperature/temperature is maintained within the allowable range. Garbage feed pusher speed: v.
回転キルン速度：ｖ、ｃ
再循環排ガス量ニーＤｊＰ
を、それぞれ速度調節計１７．２３及び５２により先に
算出した基準値をベース圧して制御する。Rotating kiln speed: v, c The recirculated exhaust gas amount knee DjP is controlled using the reference value previously calculated by the speed controllers 17.23 and 52 as the base pressure.
１）キルン内各温度が第４図に示す設定変動幅を越えて
いるかどうかチェックする。1) Check whether each temperature in the kiln exceeds the set fluctuation range shown in Figure 4.
２）キルン内各温度が上限値以上となった場合龜）燃焼
状況を、キルン内温度、後燃焼室温度、がス混合室温度
のバランスより判断し、キルン内温度が後燃焼室及びが
ス混合室温度より高い場合は
ごみ供給ゾツシャ速度Ｖ１及び回転キルン速度ｖ、ｃを
基準値に対し一定量増加する。2) When each temperature in the kiln exceeds the upper limit value.) The combustion situation is judged from the balance of the temperature inside the kiln, the temperature in the after-combustion chamber, and the temperature in the gas mixture chamber. If the temperature is higher than the mixing chamber temperature, the waste supply speed V1 and the rotary kiln speeds v and c are increased by a certain amount relative to the reference value.
ｂ）キルン内温度が第４図に示すような分布で、キルン
出口温度が後燃焼室及びがス混合室温度にほぼ同じ場合
は
再循環がスーＬＲＤＦを基準値に対し一定量増加させる
。b) If the kiln internal temperature is distributed as shown in FIG. 4 and the kiln exit temperature is approximately the same as the after-combustion chamber and gas mixing chamber temperatures, recirculation increases the sous LRDF by a certain amount relative to the reference value.
Ｃ）これらの自動制御が行われた結果、キルン内温度の
全てが各上限値以下となれば、■＋ 、”＋ｃ 、ＬＲ
ＤＦ ｌ’ｊ計！結果Ｋ Ｌ リ算出された値ｖ ”
、 ｖ、： 、 Ｌ；Ｄ、に戻す。C) As a result of these automatic controls, if all of the kiln internal temperatures are below the respective upper limit values, ■+, ”+c, LR
DF l'j total! Result K L calculated value v ”
, v, : , L; Return to D.
３）キルン内各温度が下限値■以下となった場’）
ＬＩＤＦを基準値に対し一定量減少し、又、Ｖ４． Ｖ
、ｃを基準値に対し一定量増加する。3) If each temperature in the kiln falls below the lower limit ■')
LIDF is decreased by a certain amount from the reference value, and V4. V
, c are increased by a certain amount relative to the reference value.
ｂ）その結果、キルン内温度の全てが下限値１以上とな
れば、
Ｖ、Ｖ、Ｖ はＶ、Ｖ、Ｖ に
１ １６ ＲＤＦ １
１ ｅ ＩＩＤＦ戻す。b) As a result, if all of the temperatures inside the kiln are equal to or higher than the lower limit value 1, then V, V, V are 1 16 RDF 1
1 e Return to IIDF.
４）キルン内温度の内１つでも下限値■以下となった場
合は、キルン入ロパーナ２１着火指示の警報を出し点火
する。4) If even one of the kiln internal temperatures falls below the lower limit ■, an alarm is issued to instruct the ignition of the Ropana 21 entering the kiln and the ignition is performed.
■ がス混合室温度制御
ノゾ
Ｐ出口温度即ちガス混合室温度を常時計測し、公害防止
対策上所定温度範囲に維持するようがス混合空気ｉｉ
： Ｌ、□２
を基準値をベースにして制御する。■Gasu mixing chamber temperature control Noso P outlet temperature, that is, gas mixing chamber temperature, is constantly measured and the gas mixture air is maintained within a predetermined temperature range as a pollution prevention measure.
: Control L, □2 based on the reference value.
但し、炉出口０２％を常時監視し、未燃ガス発生防止面
より、その０２チが許容範囲内に維持されるよう、上記
がス混合空気量を二次的に補正する。However, the furnace outlet 02% is constantly monitored, and the above-described gas mixture air amount is secondarily corrected so that the 02% is maintained within the allowable range in order to prevent the generation of unburned gas.
１）ガス混合室温度が第５図に示す設定変動幅を越えて
いるかどうかチェックする。1) Check whether the gas mixing chamber temperature exceeds the set fluctuation range shown in FIG.
２）ガス混合室温度が０以上となった場合ａ）がス混合
空気量Ｌ２□２をその基準値に対して一定量増大させる
。2) When the gas mixing chamber temperature becomes 0 or more, a) increases the gas mixing air amount L2□2 by a certain amount with respect to its reference value.
ｂ）その結果温度が■以下となればＬＦＤ、□は、計算
結果により算出された基準値Ｌ；１□に戻す。b) As a result, if the temperature becomes below ■, LFD, □ is returned to the reference value L; 1□ calculated from the calculation result.
３）ガス混合室温度が◎以下となった場合’） ＬＰ
ＯＦ□をその値に対して一定量減少させる。3) When the gas mixing chamber temperature is below ◎') LP
OF□ is decreased by a certain amount relative to its value.
ｂ）その結果、温度が０以上となればＬＦＤＦ□はＬＰ
ＤＦ□に戻す。b) As a result, if the temperature becomes 0 or more, LFDF□ becomes LP
Return to DF□.
４）同時に、炉出口０□％（Ｅｌ）出口部）が第６図に
示す設定変動幅を越えているかどうかチェックする。4) At the same time, check whether the furnace outlet 0□% (El exit section) exceeds the set fluctuation range shown in FIG.
５）炉出口０２ｑ１ｋが０以上となった場合（炉出口温
度が変動幅以内でも）
ａ）３）−ａ）と同じ処置する。5) If the furnace outlet 02q1k becomes 0 or more (even if the furnace outlet temperature is within the fluctuation range), take the same measures as a) 3)-a).
ｂ）その結果、［Ｆ］以下となればＬＦＤＦ２は”Ｆ＊
ＤＦ。b) As a result, if it is less than [F], LFDF2 becomes “F*
D.F.
に戻す。Return to
６）炉出口０２％が■以下となった場合ａ） ２）
−ａ）と同じ処置をする。6) If the furnace outlet 02% is below ■ a) 2)
- Do the same as a).
ｂ）その結果、０以上となればＬＦＤＦ□はＬＰＤＦ２
に戻す。b) If the result is 0 or more, LFDF□ is LPDF2
Return to
■ ごみ切出し量制御及び回転キルン制御１）ごみシー
ート１４のレベルを例えば超音波レベル計１５によυ連
続的に測定する。(2) Garbage cutting amount control and rotary kiln control 1) The level of the garbage sheet 14 is continuously measured by, for example, an ultrasonic level meter 15.
２）設定されたごみ焼却量Ｇを本制御における初期条件
とする。2) The set garbage incineration amount G is used as the initial condition in this control.
３）超音波レベル計１５によりクレーン室へ投入指示が
発信され、この指示に従いごみ投入がおこなわれる。こ
の時、投入前にクレーン荷重計１３によって計測された
実投入ｔＣＧ’）が読込まれる。3) A loading instruction is sent to the crane room by the ultrasonic level meter 15, and garbage is loaded in accordance with this instruction. At this time, the actual loading tCG') measured by the crane load meter 13 before loading is read.
４）Ｇ′投入完了前後時のごみレベル（ｈ）及び実際投
入間隔（Ｔ）により、ごみのかさ密度及びごみレベル降
下速度（Ｖｓ）を計算し、それらよシＧが確保されるご
み供給プッシャ１６の速度基準値（ｖ′：）を算出する
。4) A garbage supply pusher that calculates the bulk density of garbage and the rate of garbage level drop (Vs) based on the garbage level (h) before and after the completion of G' loading and the actual loading interval (T), and secures the garbage G by calculating them. 16 speed reference values (v':) are calculated.
５）そのｖ７に従って、ごみ供給グツシャ速度（ｖｌ）
を速度調節計１７により自動制御し、さらに回転キルン
速度（ｖｌｃ）を燃焼中のごみ質、ごみ供給グツシャ速
度に見合った速度になる様に速度調節計２３により自動
制御する。5) According to its v7, garbage supply mushy speed (vl)
is automatically controlled by a speed controller 17, and further, the rotational kiln speed (VLC) is automatically controlled by a speed controller 23 so that it becomes a speed commensurate with the type of garbage being burned and the garbage feeding speed.
ｖ１ｅ＝ｖ（ｖ４．Ｈｕ）
６）ごみレベルが投入準備レベルに達するクレーン室へ
ごみ投入準備が出される。v1e=v(v4.Hu) 6) The garbage level reaches the loading preparation level. Garbage loading preparation is issued to the crane room.
７）ごみレベルが新に投入指示レベルに達するとクレー
ン室へ投入指示が出され、ごみ投入がおこなわれ、上述
の３．４．５及び６が繰シ返される。7) When the garbage level reaches the new loading instruction level, a loading instruction is issued to the crane room, garbage is loaded, and steps 3.4.5 and 6 described above are repeated.
８）次回の投入指示がなされるまでの間、定期的にごみ
レベル計１５により実ごみレベル降下速度を検出し、標
準ごみレベル降下速度と比較し、ブリッジ発生の有無を
監視する。8) Until the next input instruction is given, the actual garbage level drop rate is periodically detected by the garbage level meter 15, and compared with the standard garbage level drop rate to monitor the occurrence of bridging.
■ 慾え切シ点制御
炉内ＩＴＶの画像処理によシ、後燃焼火格子上のごみの
燃え切シ点を燃え切り点検出器３０によｐ算出し、その
位置が許容範囲内に保たれる様、ごみ質Ｈｕ、ごみ供給
プッシャ速度Ｖ、に見合った速度になるように算定され
る基準値Ｖ２＊をベースに、後燃焼火格子速度ｖ２を速
度調節計２８により制御する。■ Burn-out point of the waste on the post-combustion grate is calculated by the image processing of the ITV in the reactor, and the burn-out point detector 30 is used to maintain the position within the allowable range. The post-combustion grate speed v2 is controlled by the speed controller 28 based on a reference value V2* calculated so that the speed corresponds to the waste quality Hu and the waste supply pusher speed V so that the post-combustion grate speed V2 will drip.
ｖ： ” ■’ （ｖｌ ＋ Ｈｕ ）Ｖ２： Ｋ、
Ｘ Ｖ；
係数に、は、燃え切９点の位置に応じて、第７図に示す
値とする。v: ” ■' (vl + Hu) V2: K,
The coefficient X V has the value shown in FIG. 7 depending on the position of the 9 burnout points.
又、後燃焼空気量Ｌ７０ｒｌも基準値Ｌ；ＤＦ１にベー
スに燃え切９点が許容範囲内に保たれる量制御する。Further, the after-combustion air amount L70rl is also controlled based on the reference value L; DF1 by an amount such that the burnout point 9 is maintained within the allowable range.
ＬＦＤＦｌ ” Ｋ４ ×Ｌ八へ１
係数に４は燃え切り点の位置に応じて、第８図に示す値
とする。LFDFl''K4×L8to1 The coefficient 4 is set to the value shown in FIG. 8, depending on the position of the burnout point.
〔発明の効果〕
この発明の分別ごみ焼矧炉の燃焼制御方法は上記のよう
なもので、次の如き効果を奏する。[Effects of the Invention] The combustion control method for a sorted waste incineration furnace according to the present invention is as described above, and has the following effects.
１）ごみの安定したガス化、燃焼を長期に渡って維持す
ることができる。1) Stable gasification and combustion of waste can be maintained over a long period of time.
２）ごみの燃焼が安定するため、例えばゴイラ付の場合
は、ゼイラ蒸発量も安定し、これにより２４２発生蒸気
の利用価値を高めることができる。2) Since the combustion of garbage is stabilized, the amount of evaporation of zeira is also stabilized, for example, in the case of using a goira, thereby increasing the utility value of the 242 generated steam.
３）炉内各部の燃焼ガス温度が安定するため、炉内耐火
物の寿命を長くすることができ、特に高分子系ごみの焼
却で問題となる回転キルンへのクリンカの付着を防止す
ることができる。3) Since the combustion gas temperature in each part of the furnace is stabilized, the life of the refractories inside the furnace can be extended, and in particular, it is possible to prevent clinker from adhering to the rotary kiln, which is a problem when incinerating polymeric waste. can.
４） ＮＯｘ及びダイオキシン等の有害ガスの発生が
安定抑制され、又未燃がス（Ｃｏ ）やすすの発生も抑
制することができる。4) The generation of harmful gases such as NOx and dioxins is stably suppressed, and the generation of unburned gas (Co) and soot can also be suppressed.
第１図は本発明方法を実施するための装置の一例を示す
フローシート、第２図は本発明方法の一例を示すフロー
チャート、第３図はごみ質Ｈｕ、焼却量Ｇとから基準再
循環がスｔＬ、、、を設定するための関数ＬＲの求め方
の説明図、第４図は回転キルン内温度の許容パターンの
説明図、第５図はガス混合室温度の制御範囲の説明図、
第６図は焼却炉出口０２％の制御範囲の説明図、第７図
及び第８図は、それぞれ燃え切り点位置に対応する係数
に３及びに°４の値を示す説明図である。
２１・・・回転キルン、２６・・・後燃焼火格子、２７
・・・がス混合寛、４１・・・メイラ。Fig. 1 is a flow sheet showing an example of an apparatus for carrying out the method of the present invention, Fig. 2 is a flow chart showing an example of the method of the present invention, and Fig. 3 shows the standard recirculation based on the waste quality Hu and the amount of incineration G. Fig. 4 is an explanatory diagram of the permissible pattern of the temperature inside the rotary kiln, Fig. 5 is an explanatory diagram of the control range of the gas mixing chamber temperature,
FIG. 6 is an explanatory diagram of the control range of 02% at the incinerator outlet, and FIGS. 7 and 8 are explanatory diagrams showing values of 3 and 4 for the coefficient corresponding to the burnout point position, respectively. 21... Rotating kiln, 26... Post-combustion grate, 27
... is mixed Hiroshi, 41... Mayra.
Claims (1)
燃焼火格子及びガス混合室を含む焼却炉でガス化燃焼さ
せる場合に、ごみ質及びごみ焼却量等をベースに、ごみ
供給プッシャ速度、回転キルン速度及び後燃焼火格子速
度並びに燃焼排ガスの再循環量、後燃焼空気量及びガス
混合空気量を自動設定し、これら設定値をごみ焼却炉内
各部温度及び燃焼排ガス中のＯ＿２％によって自動調整
することを特徴とする分別ごみ焼却炉の燃焼制御方法。When separating waste with a high content of polymeric waste is gasified and burned in an incinerator that includes a rotary kiln, post-combustion grate, and gas mixing chamber, the waste feed pusher speed is determined based on the waste quality and waste incineration amount. , the rotating kiln speed, post-combustion grate speed, recirculation amount of combustion exhaust gas, amount of after-combustion air, and gas mixture air amount are automatically set, and these set values are adjusted according to the temperature of each part in the waste incinerator and O_2% in the combustion exhaust gas. A combustion control method for a separated waste incinerator characterized by automatic adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18553585A JPS6246118A (en) | 1985-08-23 | 1985-08-23 | Method to control combustion of incinerator for separated refuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18553585A JPS6246118A (en) | 1985-08-23 | 1985-08-23 | Method to control combustion of incinerator for separated refuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6246118A true JPS6246118A (en) | 1987-02-28 |
| JPH0468533B2 JPH0468533B2 (en) | 1992-11-02 |
Family
ID=16172503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18553585A Granted JPS6246118A (en) | 1985-08-23 | 1985-08-23 | Method to control combustion of incinerator for separated refuse |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6246118A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246119A (en) * | 1985-08-23 | 1987-02-28 | Nippon Kokan Kk <Nkk> | Burning control method of classified waste incinerator |
| JPH01114610A (en) * | 1987-10-28 | 1989-05-08 | Babcock Hitachi Kk | Method for operating refuse incineration facility |
| EP0329984A2 (en) * | 1988-02-25 | 1989-08-30 | Westinghouse Electric Corporation | Improved automatic combustion control method for a rotary combustor |
| JPH04297714A (en) * | 1991-03-26 | 1992-10-21 | Plantec:Kk | Refuse incineration in refuse incinerator with gas mixer |
| US6435113B1 (en) | 1996-12-06 | 2002-08-20 | Nkk Corporation | Incineration apparatus and method which suppress generation of dioxins |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5222502B2 (en) * | 2007-08-13 | 2013-06-26 | 三菱重工環境・化学エンジニアリング株式会社 | How to operate the rotary kiln |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53683U (en) * | 1976-06-23 | 1978-01-06 | ||
| JPS5577625A (en) * | 1978-12-04 | 1980-06-11 | Air Liquide | Heat treatment method of and apparatus for industrial wastes |
| JPS55102816A (en) * | 1979-01-31 | 1980-08-06 | Mitsubishi Heavy Ind Ltd | Device for volume reduction treatment for noninflammable refuse |
| JPS5743114A (en) * | 1980-08-28 | 1982-03-11 | Nippon Kokan Kk <Nkk> | Estimating method of low calorific value of waste |
| JPS5782609A (en) * | 1981-04-09 | 1982-05-24 | Kubota Ltd | Automatic controlling method for incinerator |
| JPS6246119A (en) * | 1985-08-23 | 1987-02-28 | Nippon Kokan Kk <Nkk> | Burning control method of classified waste incinerator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53683B2 (en) * | 1973-01-31 | 1978-01-11 |
-
1985
- 1985-08-23 JP JP18553585A patent/JPS6246118A/en active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53683U (en) * | 1976-06-23 | 1978-01-06 | ||
| JPS5577625A (en) * | 1978-12-04 | 1980-06-11 | Air Liquide | Heat treatment method of and apparatus for industrial wastes |
| JPS55102816A (en) * | 1979-01-31 | 1980-08-06 | Mitsubishi Heavy Ind Ltd | Device for volume reduction treatment for noninflammable refuse |
| JPS5743114A (en) * | 1980-08-28 | 1982-03-11 | Nippon Kokan Kk <Nkk> | Estimating method of low calorific value of waste |
| JPS5782609A (en) * | 1981-04-09 | 1982-05-24 | Kubota Ltd | Automatic controlling method for incinerator |
| JPS6246119A (en) * | 1985-08-23 | 1987-02-28 | Nippon Kokan Kk <Nkk> | Burning control method of classified waste incinerator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246119A (en) * | 1985-08-23 | 1987-02-28 | Nippon Kokan Kk <Nkk> | Burning control method of classified waste incinerator |
| JPH0468534B2 (en) * | 1985-08-23 | 1992-11-02 | Nippon Kokan Kk | |
| JPH01114610A (en) * | 1987-10-28 | 1989-05-08 | Babcock Hitachi Kk | Method for operating refuse incineration facility |
| JP2664909B2 (en) * | 1987-10-28 | 1997-10-22 | バブコツク日立株式会社 | Operating method of refuse incineration equipment |
| EP0329984A2 (en) * | 1988-02-25 | 1989-08-30 | Westinghouse Electric Corporation | Improved automatic combustion control method for a rotary combustor |
| GR890100107A (en) * | 1988-02-25 | 1994-03-31 | Westinghouse Electric Corp | Automatic combustion control method for a rotary combustor |
| JPH04297714A (en) * | 1991-03-26 | 1992-10-21 | Plantec:Kk | Refuse incineration in refuse incinerator with gas mixer |
| US6435113B1 (en) | 1996-12-06 | 2002-08-20 | Nkk Corporation | Incineration apparatus and method which suppress generation of dioxins |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0468533B2 (en) | 1992-11-02 |
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