JP2003161420A - Combustion control method and combustion control device of stoker incinerator - Google Patents
Combustion control method and combustion control device of stoker incineratorInfo
- Publication number
- JP2003161420A JP2003161420A JP2001363066A JP2001363066A JP2003161420A JP 2003161420 A JP2003161420 A JP 2003161420A JP 2001363066 A JP2001363066 A JP 2001363066A JP 2001363066 A JP2001363066 A JP 2001363066A JP 2003161420 A JP2003161420 A JP 2003161420A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- oxygen
- stoker
- primary air
- combustible material
- 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- Withdrawn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
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Incineration Of Waste (AREA)
- Air Supply (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ストーカ式焼却炉
に適用され、一次空気流量調整弁により開閉される一次
空気管からの一次空気をストーカの燃焼炉に投入された
可燃物層中に供給してガス化を含む一次燃焼を行い、該
可燃物層の上方に設けられた二次燃焼室に二次空気を供
給して二次燃焼を行うようにしたストーカ焼却炉の燃焼
制御方法及び燃焼制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a stoker type incinerator, and supplies primary air from a primary air pipe opened and closed by a primary air flow rate control valve into a combustible material layer put into a stoker combustion furnace. Combustion control method and combustion in a stoker incinerator, in which primary combustion including gasification is performed, and secondary air is supplied to a secondary combustion chamber provided above the combustible material layer to perform secondary combustion. Regarding the control device.
【０００２】[0002]
【従来の技術】ストーカ式焼却炉においては、ストーカ
上に投入された可燃物層中に一次空気管からの一次空気
を供給して該ストーカ上の一次燃焼室で熱分解ガス化を
含む一次燃焼を行い、次いで該一次燃焼室の上方に設け
られた二次燃焼室において二次空気を供給して高温燃焼
（二次燃焼）を行い、排ガス中の煤塵やダイオキシンの
排出を抑制している。かかる式焼却炉において、ストー
カ上に投入された可燃物層を燃焼させる一次燃焼では、
前記のようなダイオキシンの排出抑制及び燃焼後の灰の
性状良化をなすため、一次空気として酸素富化空気を供
給しての高温燃焼が行われている。2. Description of the Related Art In a stoker type incinerator, primary air is supplied from a primary air pipe into a combustible material layer put on a stoker to perform primary combustion including pyrolysis gasification in a primary combustion chamber on the stoker. Then, secondary air is supplied in a secondary combustion chamber provided above the primary combustion chamber to perform high temperature combustion (secondary combustion) to suppress emission of dust and dioxin in the exhaust gas. In this type of incinerator, in the primary combustion that burns the combustible material layer put on the stoker,
In order to suppress the emission of dioxin and improve the properties of ash after combustion as described above, high temperature combustion is performed by supplying oxygen-enriched air as primary air.
【０００３】前記ストーカ式焼却炉における燃焼制御方
法の１つとして特開平６−３１３５３４号の発明が提供
されている。かかる発明においては、ストーカ上での可
燃物層の一次燃焼において一次空気の酸素比を高めるこ
とにより燃焼強度を強め、二次燃焼室における燃焼強度
を再循環排ガスを二次空気と併用することにより絞るよ
うにして燃焼効率を高めている。またかかる発明におい
ては、ＣＣＤカメラ、赤外線カメラ等の撮像画像によっ
てストーカ上における可燃物層の燃焼表面温度を検出
し、この検出信号に基づき一次空気の酸素比及び二次空
気の酸素比等を制御している。The invention of JP-A-6-313534 is provided as one of the combustion control methods in the stoker type incinerator. In such an invention, the combustion strength is increased by increasing the oxygen ratio of the primary air in the primary combustion of the combustible material layer on the stoker, and the combustion strength in the secondary combustion chamber is increased by using the recirculated exhaust gas together with the secondary air. Combustion efficiency is improved by squeezing. Further, in the invention, the combustion surface temperature of the combustible material layer on the stoker is detected by the image captured by the CCD camera, the infrared camera, etc., and the oxygen ratio of the primary air and the oxygen ratio of the secondary air are controlled based on the detection signal. is doing.
【０００４】[0004]
【発明が解決しようとする課題】ストーカ式焼却炉にお
いては、前記のように、ストーカ上に投入された可燃物
層を燃焼させる一次燃焼では、ダイオキシンの排出抑制
及び燃焼後の灰の性状良化をなすため、一次空気として
酸素富化空気を供給しての高温燃焼が行われている。殊
に発熱量の高い可燃物（ごみ）がストーカ上に投入され
た場合には、該可燃物の燃焼による輻射熱によってスト
ーカ後段部のおき燃焼域における灰の表面温度が高くな
り、灰が焼結することがある。さらにこの灰が大きくな
ると、灰処理装置上に落下して該灰処理装置に損傷の発
生をみたり、灰の容積増大によって灰の輸送が不可能に
なることがある。In the stoker type incinerator, as described above, in the primary combustion in which the combustible material layer put on the stoker is burned, the emission of dioxin is suppressed and the quality of ash after burning is improved. Therefore, high temperature combustion is performed by supplying oxygen-enriched air as primary air. Especially when a combustible material (dust) with a high calorific value is put on the stoker, the radiant heat from the combustion of the combustible material raises the surface temperature of the ash in the every combustion area of the latter part of the stoker, and the ash is sintered. I have something to do. Further, when the ash becomes large, the ash may drop on the ash processing apparatus to cause damage to the ash processing apparatus or the ash cannot be transported due to the increased volume of the ash.
【０００５】前記のような高温燃焼に伴うおき燃焼域に
おける灰の表面温度上昇を抑制するには、ストーカ上に
おける可燃物層の燃焼状態を監視して一次空気中の酸素
量を調整することを要するが、前記特開平６−３１３５
３４号の発明においては、ＣＣＤカメラ、赤外線カメラ
等の撮像画像によってストーカ上における可燃物層の燃
焼表面温度を検出し、この検出信号に基づき一次空気の
酸素比及び二次空気の酸素比等を制御している。In order to suppress the surface temperature rise of the ash in the combustion zone due to the high temperature combustion as described above, it is necessary to monitor the combustion state of the combustible material layer on the stoker and adjust the oxygen amount in the primary air. In short, the above-mentioned JP-A-6-3135
In the invention of No. 34, the combustion surface temperature of the combustible material layer on the stoker is detected by a captured image of a CCD camera, an infrared camera, etc., and the oxygen ratio of the primary air and the oxygen ratio of the secondary air are detected based on the detected signal Have control.
【０００６】しかしながら、かかる発明においては可燃
物層の燃焼表面温度をＣＣＤカメラ、赤外線カメラ等の
撮像画像によって可燃物層の燃焼表面温度を検出してい
るが、殊に発熱量の高い可燃物の高温燃焼時においては
燃焼火炎の「たなびき」によって可燃物層の燃焼表面温
度の検出精度が低下し、ストーカ上における一次燃焼に
おける一次空気量や一次空気の酸素比の制御精度が低下
して、ダイオキシンの排出量の増大や燃焼後の灰の性状
悪化を引き起こし易くなる。また、前記燃焼火炎の影響
を受けることなく可燃物層の燃焼表面温度を検出する手
段として、おき燃焼域の上部に熱電対を設置して該表面
温度を監視する手段があるが、かかる手段の場合には、
熱電対に設置部位が高温で腐食性ガスの雰囲気内にある
ため、熱電対の寿命がきわめて短くなる。However, in this invention, the combustion surface temperature of the combustible material layer is detected by the image captured by a CCD camera, an infrared camera or the like, but the combustion surface temperature of the combustible material layer is particularly high. During high-temperature combustion, the accuracy of detection of the combustion surface temperature of the combustible layer decreases due to the "tanabiki" of the combustion flame, and the control accuracy of the primary air amount and oxygen ratio of primary air in primary combustion on the stoker decreases, resulting in dioxins. Of ash and deterioration of ash properties after combustion are likely to occur. Further, as a means for detecting the combustion surface temperature of the combustible material layer without being affected by the combustion flame, there is a means for installing a thermocouple at the upper part of the alternate combustion zone and monitoring the surface temperature. in case of,
Since the installation site of the thermocouple is in a high temperature and corrosive gas atmosphere, the life of the thermocouple is extremely short.
【０００７】さらに、ストーカ式焼却炉において、燃え
切り点等の燃焼火炎の状態がストーカ（火格子）上の位
置によって変化するが、従来はストーカの主燃焼段の燃
え切り点を所要位置になるように該主燃焼段の風箱への
富化酸素供給量を増加しているに止まり、燃え切り点の
移動に迅速に追従して富化酸素供給量を調整できる手段
は提供されていない、等の問題点を有している。Further, in the stoker type incinerator, the state of the combustion flame such as the burnout point changes depending on the position on the stoker (grate), but conventionally, the burnout point of the main combustion stage of the stoker becomes the required position. As described above, the supply of the enriched oxygen to the wind box of the main combustion stage is merely increased, and a means for quickly adjusting the enriched oxygen supply to follow the movement of the burnout point is not provided, There are problems such as.
【０００８】本発明はかかる従来技術の課題に鑑み、燃
焼炉上の可燃物層の燃焼表面温度を燃焼火炎の「たなび
き」の影響を除去して高精度で検出し、可燃物層の燃焼
表面の温度状態に適合した一次空気量および酸素量を調
整可能として、ダイオキシンの排出量の増大や燃焼後の
灰の性状悪化に伴う灰の焼結及び灰処理装置の損傷の発
生、灰の容積増大による輸送不能等の不具合の発生を防
止するとともに、ストーカ式焼却炉において燃え切り点
の移動に迅速に追従して富化酸素供給量を調整できる焼
却炉の燃焼制御方法及び燃焼制御装置を提供することを
目的とする。In view of the above problems of the prior art, the present invention detects the combustion surface temperature of the combustible material layer on the combustion furnace with high accuracy by removing the effect of "tanabuki" of the combustion flame, and detects the combustion surface of the combustible material layer. It is possible to adjust the primary air amount and oxygen amount according to the temperature condition of the ash, and increase the emission of dioxins and the deterioration of ash properties after combustion, resulting in ash sintering and damage to the ash treatment equipment, and increase in ash volume. A combustion control method and a combustion control device for an incinerator that can prevent the occurrence of problems such as inability to transport due to the above and can adjust the enriched oxygen supply amount by quickly following the movement of the burnout point in the stoker type incinerator. The purpose is to
【０００９】[0009]
【課題を解決するための手段】本発明はかかる課題を解
決するため、請求項１記載の発明として、流量調整され
た一次空気をストーカ上に投入された可燃物層中に供給
してガス化を含む一次燃焼を行い、該可燃物層の上方に
設けられた二次燃焼室に二次空気を供給して二次燃焼を
行うようにしたストーカ焼却炉の燃焼制御方法におい
て、前記燃焼炉上の可燃物層中に流量調整された酸素を
供給することで、前記燃焼炉における灰を含む前記可燃
物層の表面温度を燃焼火炎の影響を除去する波長域を選
択して検出し、該表面温度の検出値に基づき前記一次空
気と酸素の供給量を調整することを特徴とするストーカ
焼却炉の燃焼制御方法を提案する。In order to solve the above problems, the present invention provides gasification by supplying primary air, the flow rate of which is adjusted, into a combustible material layer put on a stoker. In the combustion control method of the stoker incinerator, the primary combustion is performed, and secondary combustion is performed by supplying secondary air to the secondary combustion chamber provided above the combustible material layer. By supplying a flow rate-adjusted oxygen into the combustible material layer, the surface temperature of the combustible material layer containing ash in the combustion furnace is detected by selecting a wavelength range for removing the influence of the combustion flame, and the surface is detected. A combustion control method for a stoker incinerator, which is characterized in that the supply amounts of the primary air and oxygen are adjusted based on a detected value of temperature.
【００１０】請求項１において、具体的には次のように
構成する。即ち、前記表面温度の検出値が基準値よりも
高いとき、前記一次空気の供給量を増加せしめ、前記酸
素の供給量を減少せしめる。また、前記表面温度を前記
可燃物の表面の撮像画像により検出し、該撮像画像から
バンドパスフィルタを介して前記燃焼火炎の主成分であ
る炭酸ガス（ＣＯ2）及び水蒸気（Ｈ2Ｏ）の影響度が一
定値以下の波長域の光量を温度換算した熱画像信号を選
択する。In the first aspect of the present invention, it is specifically constructed as follows. That is, when the detected value of the surface temperature is higher than the reference value, the supply amount of the primary air is increased and the supply amount of the oxygen is decreased. Further, the surface temperature is detected from a captured image of the surface of the combustible material, and carbon dioxide (CO 2 ) and water vapor (H 2 O) that are the main components of the combustion flame are detected from the captured image through a bandpass filter. A thermal image signal in which the amount of light in the wavelength range having a degree of influence equal to or less than a certain value is converted into temperature is selected.
【００１１】請求項６記載の発明は請求項１の発明を実
施する装置の発明であり、一次空気管からの一次空気を
ストーカの燃焼炉に投入された可燃物層中に供給して、
ガス化を含む一次燃焼を行うとともに、該可燃物層の上
方に設けられた二次燃焼室に二次空気を供給して二次燃
焼を行うように構成され、前記一次空気管の管路を開閉
する一次空気流量調整弁を備えた焼却炉の燃焼制御装置
において、前記燃焼炉の可燃物層中に酸素を供給する酸
素供給管と、該酸素供給管の管路を開閉する酸素流量調
整弁と、前記燃焼炉上における灰を含む前記可燃物層の
表面温度を検出する温度検出手段と、該温度検出手段か
らの表面温度の検出信号から燃焼火炎の主成分である炭
酸ガス（ＣＯ2）及び水蒸気（Ｈ2Ｏ）の影響を波長域選
択により除去する火炎成分除去手段と、該火炎成分除去
手段を経た表面温度の検出信号に基づき前記一次空気流
量調整弁の開度を変化させて一次空気の供給量を調整す
るとともに前記酸素流量調整弁の開度を変化させて酸素
の供給量を調整する制御装置とを備えたことを特徴とす
る。The invention according to claim 6 is the invention of an apparatus for carrying out the invention according to claim 1, wherein the primary air from the primary air pipe is supplied into the combustible material layer charged into the combustion furnace of the stoker,
Along with performing primary combustion including gasification, it is configured to perform secondary combustion by supplying secondary air to a secondary combustion chamber provided above the combustible material layer, In a combustion control device for an incinerator having a primary air flow rate control valve that opens and closes, an oxygen supply pipe that supplies oxygen into a combustible layer of the combustion furnace, and an oxygen flow rate control valve that opens and closes a line of the oxygen supply pipe. And temperature detecting means for detecting the surface temperature of the combustible material layer containing ash on the combustion furnace, and carbon dioxide gas (CO 2 ) which is the main component of the combustion flame from the detection signal of the surface temperature from the temperature detecting means. And flame component removing means for removing the influence of water vapor (H 2 O) by wavelength range selection, and the opening degree of the primary air flow rate adjusting valve is changed based on the detection signal of the surface temperature passed through the flame component removing means. In addition to adjusting the air supply Characterized by comprising a control device by changing the degree of opening of the unit flow rate adjusting valve for adjusting the supply amount of oxygen.
【００１２】請求項６において、具体的には次のように
構成する。即ち、前記温度検出手段は前記可燃物の表面
を撮像する赤外線カメラと該赤外線カメラによる撮像画
像信号を温度信号に変換する画像処理手段とを有し、前
記制御装置は前記温度検出手段からの表面温度の検出値
が設定された基準値よりも高いとき前記一次空気の供給
量を増加せしめ、前記酸素の供給量を減少せしめるよう
に構成される。また、好ましくは、前記温度検出手段は
前記温度検出手段に赤外線カメラによる撮像画像信号か
ら前記燃焼火炎の主成分である炭酸ガス（ＣＯ2）及び
水蒸気（Ｈ2Ｏ）の影響度が一定値以下の波長を透過す
るバンドパスフィルタを備えたことを特徴とするのがよ
い。[0012] In claim 6, the concrete construction is as follows. That is, the temperature detecting means has an infrared camera for capturing an image of the surface of the combustible material and an image processing means for converting an image signal captured by the infrared camera into a temperature signal, and the controller controls the surface from the temperature detecting means. When the detected temperature value is higher than the set reference value, the supply amount of the primary air is increased and the supply amount of the oxygen is decreased. Further, preferably, the temperature detection means has an influence degree of carbon dioxide gas (CO 2 ) and water vapor (H 2 O), which are main components of the combustion flame, which is less than a certain value from an image signal captured by an infrared camera in the temperature detection means. It is preferable to have a bandpass filter that transmits the wavelength of.
【００１３】本発明によれば、例えば酸素供給管を通し
て燃焼炉上の可燃物層中に酸素を供給し、該酸素供給管
を開閉する酸素流量調整弁及び可燃物層中への一次空気
供給管を開閉する前記一次空気流量調整弁を、制御装置
により前記可燃物層の表面温度の検出値に基づき開閉
し、具体的には請求項２及び７のように前記表面温度の
検出値が基準値よりも高いとき一次空気の供給量を増加
せしめるとともに酸素の供給量を減少せしめるように制
御する。According to the present invention, for example, oxygen is supplied into the combustible material layer on the combustion furnace through the oxygen supply tube, and the oxygen flow rate adjusting valve for opening and closing the oxygen supply tube and the primary air supply tube into the combustible material layer are provided. The primary air flow rate adjusting valve for opening and closing is opened and closed based on the detected value of the surface temperature of the combustible material layer by a control device. Specifically, the detected value of the surface temperature is a reference value as in claims 2 and 7. When it is higher than the above, the supply amount of primary air is increased and the supply amount of oxygen is controlled to be decreased.
【００１４】さらに、前記表面温度の検出信号を波長域
選択により燃焼火炎の影響を除去して前記制御装置に入
力する、つまり具体的には、前記可燃物の表面温度の検
出信号として可燃物表面の撮像画像により検出して該撮
像画像からバンドパスフィルタにより前記燃焼火炎の主
成分である炭酸ガス（ＣＯ2）及び水蒸気（Ｈ2Ｏ）の影
響度が一定値以下の波長域の光量を温度換算した熱画像
信号を選択して前記制御装置に入力する。Further, the detection signal of the surface temperature is inputted to the control device after removing the influence of the combustion flame by selecting the wavelength range, that is, specifically, the surface of the combustible material is detected as the detection signal of the surface temperature of the combustible material. Detected from the captured image, and from the captured image, the amount of light in the wavelength range in which the degree of influence of carbon dioxide (CO 2 ) and water vapor (H 2 O), which are the main components of the combustion flame, is equal to or less than a certain value is controlled by a bandpass filter. The converted thermal image signal is selected and input to the control device.
【００１５】従って本発明によれば、前記表面温度の検
出信号を、請求項８のようなバンドパスフィルタを用い
て燃焼火炎の主成分である炭酸ガス（ＣＯ2）及び水蒸
気（Ｈ2Ｏ）の影響度が一定値以下の波長域の光量を温
度換算した熱画像信号を抽出し燃焼火炎の影響を除去し
て前記制御装置に入力するので、燃焼火炎の「たなび
き」の影響が確実に除去された表面温度の検出信号を得
ることができ、かかる正確な可燃物表面温度の検出信号
に基づいて制御装置により可燃物表面温度の検出値が基
準値よりも高いとき一次空気の供給量を増加せしめると
ともに酸素の供給量を減少せしめるように制御するの
で、一次空気及び酸素の供給量を可燃物表面温度に適応
させて高精度で制御することが可能となる。これによ
り、燃焼炉の燃焼温度を適正温度に保持して、該燃焼温
度の過小によるダイオキシンの排出量の増大や該燃焼温
度の過大による灰の性状悪化に伴う灰の焼結及び灰処理
装置の損傷の発生、灰の容積増大による輸送不能等の不
具合の発生を防止することができる。Therefore, according to the present invention, the detection signal of the surface temperature is converted into carbon dioxide (CO 2 ) and water vapor (H 2 O), which are the main components of the combustion flame, by using the bandpass filter as claimed in claim 8. The influence of the combustion flame is extracted by extracting the thermal image signal in which the amount of light in the wavelength range below the certain value is converted to temperature and input to the control device, so the influence of "tanabiki" of the combustion flame is surely removed. It is possible to obtain the detected surface temperature detection signal, and based on this accurate detection signal of the combustible material surface temperature, the controller increases the supply amount of primary air when the detected value of the combustible material surface temperature is higher than the reference value. Since the control is performed such that the supply amount of oxygen is reduced as well as the supply amount of primary air and oxygen, it is possible to control the supply amounts of primary air and oxygen in accordance with the surface temperature of the combustible material with high accuracy. With this, the combustion temperature of the combustion furnace is maintained at an appropriate temperature, and the emission amount of dioxin increases due to the combustion temperature being too small, and the ash sintering and ash treatment apparatus associated with the deterioration of ash properties due to the excessive combustion temperature It is possible to prevent the occurrence of problems such as damage and the inability to transport due to an increase in the volume of ash.
【００１６】また、請求項４記載の発明は、流量調整さ
れた一次空気を複数段のストーカ（火格子）の夫々に設
けられた風箱を介して該ストーカ上に投入された可燃物
層中に供給してガス化を含む一次燃焼を行い、該可燃物
層の上方に設けられた二次燃焼室に二次空気を供給して
二次燃焼を行うようにしたストーカ焼却炉の燃焼制御方
法において、前記ストーカ炉における燃焼火炎の燃え切
り点の位置を検出し、前記複数段のストーカの燃焼段及
びおき燃焼段の風箱の夫々に流量調整された酸素を供給
し、前記燃え切り点の位置の検出信号に基づき前記各段
の風箱への酸素の供給量を調整することを特徴とする。Further, in the invention according to claim 4, in the combustible material layer in which the primary air whose flow rate is adjusted is put on the stoker through the wind box provided in each of the plurality of stages of stokers (grate). Control method for a stoker incinerator in which primary combustion including gasification is performed to supply secondary air to a secondary combustion chamber provided above the combustible material layer to perform secondary combustion. In, the position of the burn-out point of the combustion flame in the stoker furnace is detected, and the flow rate of oxygen is supplied to each of the combustion stages of the stokers of the plurality of stages and the wind boxes of the alternate combustion stages, and the burn-out point of It is characterized in that the supply amount of oxygen to the air boxes of the respective stages is adjusted based on a position detection signal.
【００１７】請求項４において、具体的には次のように
構成する。即ち、前記燃え切り点の位置が一定位置より
も灰側にあるときは少なくとも前記燃焼段の風箱への酸
素供給量を増加し、前記燃え切り点の位置が一定位置よ
りもごみ供給側にあるときは少なくとも前記燃焼段の風
箱への酸素供給量を減少する。In the fourth aspect, specifically, the following construction is made. That is, when the position of the burn-off point is on the ash side of the fixed position, at least the oxygen supply amount to the wind box of the combustion stage is increased, and the position of the burn-off point is on the dust supply side of the fixed position. In some cases, at least the oxygen supply to the air box in the combustion stage is reduced.
【００１８】請求項９記載の発明は前記発明を実施する
装置の発明であり、一次空気流量調整弁により開閉され
る一次空気管からの一次空気をストーカ炉を構成する複
数段のストーカ（火格子）の夫々に設けられた風箱を介
して該ストーカ上に投入された可燃物層中に供給してガ
ス化を含む一次燃焼を行なうとともに該可燃物層の上方
に設けられた二次燃焼室に二次空気を供給して二次燃焼
を行うように構成された焼却炉の燃焼制御装置におい
て、前記複数段のストーカの燃焼段及びおき燃焼段の風
箱の夫々に酸素を供給する酸素供給管と、前記各酸素供
給管の管路を開閉する酸素流量調整弁と、前記ストーカ
上に燃焼火炎の燃え切り点の位置を検出する燃え切り点
検出装置と、該燃え切り点検出装置からの燃え切り点の
検出信号が入力され該燃え切り点の検出信号に基づき該
燃え切り点の位置が一定位置よりも灰側にあるときは少
なくとも前記燃焼段の風箱への酸素供給量を増加せし
め、前記燃え切り点の位置が一定位置よりもごみ供給側
にあるときは少なくとも前記燃焼段の風箱への酸素供給
量を減少せしめる制御装置を備えたことを特徴とする。The invention according to claim 9 is the invention of an apparatus for carrying out the above invention, wherein a plurality of stages of stoker (grate) for forming primary air from a primary air pipe opened and closed by a primary air flow rate adjusting valve in a stoker furnace. ) Is supplied to the combustible material layer put on the stoker through the wind box provided in each of the above) to perform the primary combustion including gasification and the secondary combustion chamber provided above the combustible material layer. In a combustion control device of an incinerator configured to supply secondary air to secondary combustion, oxygen supply for supplying oxygen to each of the combustion stages of the plurality of stages of the stoker and the wind box of the alternate combustion stage. A pipe, an oxygen flow rate adjusting valve that opens and closes the pipeline of each oxygen supply pipe, a burn-out point detection device that detects the position of the burn-out point of the combustion flame on the stoker, and a burn-out point detection device from the burn-out point detection device. The burnout point detection signal is input When the position of the burn-out point is on the ash side of the constant position based on the detection signal of the burn-out point, at least the oxygen supply amount to the wind box of the combustion stage is increased, and the position of the burn-off point is a fixed position. It is characterized in that it is provided with a control device for reducing the oxygen supply amount to at least the air box of the combustion stage when it is on the dust supply side.
【００１９】本発明によれば、ストーカ炉の炉頂に設置
された赤外線カメラ等の炉頂カメラによりストーカ炉内
の燃焼火炎を撮像し、この撮像画像を燃え切り点検出装
置にて画像処理し燃焼火炎の燃え切り点を検出して制御
装置に入力する。そして該制御装置により、前記燃え切
り点の検出信号に基づき、該燃え切り点の検出位置が予
め設定された基準位置よりも灰側にあるときは、ストー
カの少なくとも燃焼段の風箱への酸素供給管の酸素流量
調整弁の開度を大きくして酸素供給量を増加せしめるこ
とにより燃焼火炎を強め、前記燃え切り点の位置が基準
位置よりもごみ供給側にあるときは、ストーカの少なく
とも燃焼段の風箱への酸素供給管の酸素流量調整弁の開
度を小さくして酸素供給量を減少せしめることにより燃
焼火炎を弱める。According to the present invention, the combustion flame in the stoker furnace is imaged by the top camera such as an infrared camera installed on the top of the stoker furnace, and the captured image is processed by the burn-out point detection device. The burn-out point of the combustion flame is detected and input to the control device. Then, based on the burn-out point detection signal by the control device, when the burn-out point detection position is on the ash side of the preset reference position, oxygen to at least the combustion stage wind box of the stoker The combustion flame is strengthened by increasing the opening of the oxygen flow rate adjusting valve of the supply pipe to increase the oxygen supply amount, and when the burn-out point is located on the dust supply side of the reference position, at least the combustion of the stoker is performed. The combustion flame is weakened by reducing the opening of the oxygen flow rate adjusting valve of the oxygen supply pipe to the stage wind box to reduce the oxygen supply amount.
【００２０】従って本発明によれば、ストーカ炉内にお
ける燃焼火炎の燃え切り点の移動に迅速に追従して酸素
富化されるストーカの位置を変化させることができて、
燃焼火炎の燃え切り点の位置を常時適正位置に保持する
ことが可能となる。これにより、主燃焼段において酸素
富化に伴う高温燃焼をむらなく行うことができてダイオ
キシンの発生を抑制できる。また、おき燃焼段において
も酸素富化に伴う高温燃焼をむらなく行うことができ
て、主灰中の未燃物を完全燃焼せしめることが可能とな
って該おき燃焼段におけるダイオキシンの発生を抑制で
きるとともに主灰の性状を向上でき、さらには主灰の燒
結を促進して重金属の溶出を低減できる。Therefore, according to the present invention, the position of the oxygen-enriched stoker can be changed by rapidly following the movement of the burn-out point of the combustion flame in the stoker furnace,
It is possible to always keep the position of the burn-out point of the combustion flame at an appropriate position. This makes it possible to uniformly perform high temperature combustion associated with oxygen enrichment in the main combustion stage, and suppress generation of dioxins. Further, even in the pre-combustion stage, high temperature combustion due to oxygen enrichment can be performed evenly, and it is possible to completely burn unburned matter in the main ash, thereby suppressing the generation of dioxin in the pre-combustion stage. In addition to being able to improve the properties of the main ash, it is possible to accelerate the sintering of the main ash and reduce the elution of heavy metals.
【００２１】[0021]
【発明の実施の形態】以下、本発明を図に示した実施例
を用いて詳細に説明する。但し、この実施例に記載され
ている構成部品の寸法、材質、形状、その相対配置など
は特に特定的な記載がない限り、この発明の範囲をそれ
のみに限定する趣旨ではなく、単なる説明例にすぎな
い。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are not intended to limit the scope of the present invention thereto, unless there is a specific description, and are merely illustrative examples. Nothing more.
【００２２】図１は本発明の第１実施例に係るストーカ
式焼却炉及びその燃焼制御装置の全体構成図である。図
２は前記燃焼制御装置の制御フロー図、図３は燃焼火炎
の撮像画像への影響説明用線図である。図４は本発明の
第２実施例に係るストーカ式焼却炉及びその燃焼制御装
置の全体構成図である。FIG. 1 is an overall configuration diagram of a stoker type incinerator and its combustion control device according to a first embodiment of the present invention. FIG. 2 is a control flow chart of the combustion control device, and FIG. 3 is a diagram for explaining the influence of combustion flame on a captured image. FIG. 4 is an overall configuration diagram of a stoker incinerator and its combustion control device according to a second embodiment of the present invention.
【００２３】本発明の第１実施例を示す図１において、
１００はストーカ炉で次のように構成されている。１０
１は燃焼炉を構成するストーカ（火格子）、１２１は該
ストーカ１０１の後段側に構成されるおき燃焼段であ
る。１０８は該ストーカ１０１上に投入されるごみ（可
燃物）を収容するごみホッパ、１２２は該ストーカ１０
１の上部に形成される一次燃焼室、１０５は該一次燃焼
室１２２の上方に設けられた二次燃焼室である。１１４
は排ガス熱を回収するためのボイラ、１１５は煙道であ
る。In FIG. 1 showing the first embodiment of the present invention,
A stoker furnace 100 is configured as follows. 10
Reference numeral 1 is a stoker (grate) that constitutes a combustion furnace, and 121 is a pre-combustion stage that is formed on the rear side of the stoker 101. Reference numeral 108 denotes a waste hopper for storing the waste (combustible material) thrown on the stoker 101, and 122 denotes the stoker 10
Reference numeral 105 denotes a primary combustion chamber formed in the upper part of 1, and reference numeral 105 denotes a secondary combustion chamber provided above the primary combustion chamber 122. 114
Is a boiler for collecting exhaust gas heat, and 115 is a flue.
【００２４】１３０ａ、１３０ｂ、１３０ｃ、１３０
ｄ、１３０ｅは前記ストーカ１０１を構成する前段の乾
燥段から主燃焼段を経て後段のおき燃焼段１２１の下部
に夫々設けられた風箱である。１１１は前記風箱１３０
ａ〜１３０ｅの夫々に一次空気を供給するための一次空
気管、７は該一次空気管１１１の管路を開閉する一次空
気流量調整弁、１２３は前記二次燃焼室１０５内に二次
空気を供給するための二次空気管である。また１２５は
前記おき燃焼段１２１にて燃焼後の灰８を捕集する灰捕
集槽である。130a, 130b, 130c, 130
Reference numerals d and 130e denote wind boxes provided in the stoker 101, which are respectively provided under the drying stage in the front stage, the main combustion stage, and the lower combustion stage 121 in the rear stage. 111 is the wind box 130
a to 130e, a primary air pipe for supplying primary air, 7 is a primary air flow rate adjusting valve that opens and closes the conduit of the primary air pipe 111, and 123 is a secondary air in the secondary combustion chamber 105. It is a secondary air pipe for supplying. Further, 125 is an ash collection tank for collecting the ash 8 after combustion in the alternate combustion stage 121.
【００２５】かかるストーカ炉において、前記ごみホッ
パ１０８からストーカ１０１上に投入されたごみは該ス
トーカ１０１に供給される一次空気によって一次燃焼室
１２２にて高温燃焼される。この燃焼ガスは二次燃焼室
１０５において二次空気によって更なる高温燃焼がなさ
れて完全燃焼されるとともにダイオキシン類の分解がな
される。該二次燃焼室１０５にて燃焼後の排ガスは、ボ
イラ１１４にて蒸気を発生することによって熱回収され
た後、煙道１１５を通って大気中に排出される。In the stoker furnace, the dust put on the stoker 101 from the dust hopper 108 is burned at a high temperature in the primary combustion chamber 122 by the primary air supplied to the stoker 101. This combustion gas is further burned at a higher temperature in the secondary combustion chamber 105 by the secondary air to be completely burned and the dioxins are decomposed. The exhaust gas after combustion in the secondary combustion chamber 105 is subjected to heat recovery by generating steam in the boiler 114, and then discharged into the atmosphere through the flue 115.
【００２６】尚、前記一次空気はブロワ１０９から熱交
換器１１２に圧送され、該熱交換器１１２において蒸気
源１１３からの蒸気によって加熱された後、前記一次空
気管１１１を通って前記風箱１３０ａ〜１３０ｅの夫々
に供給される。また、前記ストーカ１０１の後段燃焼部
であるおき燃焼段１２１での燃焼後の灰８は灰捕集槽１
２５に捕集される。以上の構成、作用は従来のストーカ
焼却炉及び燃焼システムと同様である。本発明において
は、ストーカ焼却炉を含む焼却炉の燃焼制御方法及び燃
焼制御装置を改良している。The primary air is pressure-fed from the blower 109 to the heat exchanger 112, heated in the heat exchanger 112 by the steam from the steam source 113, and then passed through the primary air pipe 111 to the wind box 130a. ~ 130e, respectively. Also, the ash 8 after combustion in the alternate combustion stage 121, which is the latter stage combustion part of the stoker 101, is the ash collection tank 1
25. The above configuration and operation are similar to those of the conventional stoker incinerator and combustion system. In the present invention, a combustion control method and a combustion control device for an incinerator including a stoker incinerator are improved.
【００２７】即ち、図１において、５は酸素供給装置、
９は該酸素供給装置５と前記各一次空気管１１１とを接
続する酸素供給管である（該酸素供給管９は前記風箱１
３０ａ〜１３０ｅに直接接続してもよい）。６は該酸素
供給管９の管路を開閉する酸素流量調整弁である。尚、
前記酸素供給管９は前段の乾燥段用風箱１３０ａには接
続しなくてもよい。１は前記ストーカ炉内部、具体的に
は前記ストーカ１０１上における可燃物層即ちごみの燃
焼層の表面を撮像する赤外線カメラ、２は該赤外線カメ
ラ１に装着され該赤外線カメラ１からの撮像画像から後
述する手段によって燃焼火炎１２０の主成分である炭酸
ガス（ＣＯ2）及び水蒸気（Ｈ2Ｏ）の影響を除去するバ
ンドパスフィルタ、３は該バンドパスフィルタ２を通し
た撮像画像信号を画像処理して温度信号（前記可燃物層
の表面温度）に変換する表面温度検出装置である。That is, in FIG. 1, 5 is an oxygen supply device,
Reference numeral 9 is an oxygen supply pipe that connects the oxygen supply device 5 and each of the primary air pipes 111 (the oxygen supply pipe 9 is the wind box 1).
30a-130e may be directly connected). Reference numeral 6 is an oxygen flow rate adjusting valve that opens and closes the conduit of the oxygen supply pipe 9. still,
The oxygen supply pipe 9 does not have to be connected to the preceding drying stage air box 130a. Reference numeral 1 denotes an infrared camera that images the inside of the stoker furnace, specifically, the surface of a combustible material layer on the stoker 101, that is, the surface of a combustion layer of dust, and 2 denotes an infrared camera mounted on the infrared camera 1 and an image captured by the infrared camera 1. A bandpass filter 3 for removing the influence of carbon dioxide gas (CO 2 ) and water vapor (H 2 O), which are the main components of the combustion flame 120, by a means described later is image-processed by the image pickup image signal passed through the bandpass filter 2. And a surface temperature detecting device for converting into a temperature signal (surface temperature of the combustible material layer).
【００２８】４は制御装置で、前記表面温度検出装置３
からの前記可燃物層の表面温度検出信号が入力され、該
表面温度検出信号に基づき、後述する手段によって前記
一次空気流量調整弁７の開度を変化させて前記ストーカ
１０１への一次空気の供給量を調整するとともに前記酸
素流量調整弁６の開度を変化させて前記二次燃焼室１０
５への酸素の供給量を調整するものである。Reference numeral 4 denotes a control device, which is the surface temperature detecting device 3 described above.
Is supplied with the surface temperature detection signal of the combustible material layer, and the opening of the primary air flow rate adjusting valve 7 is changed by means to be described later based on the surface temperature detection signal to supply the primary air to the stoker 101. The secondary combustion chamber 10 by adjusting the amount and changing the opening of the oxygen flow rate adjusting valve 6.
The amount of oxygen supplied to the No. 5 is adjusted.
【００２９】次に図１〜３を参照して、かかる実施例に
おける燃焼制御方法につき説明する。前記赤外線カメラ
１で撮像された可燃物層即ちごみの燃焼層表面の撮像画
像はバンドパスフィルタ２を通すことにより、燃焼火炎
１２０の主成分である炭酸ガス（ＣＯ2）及び水蒸気
（Ｈ2Ｏ）の影響が除去された撮像画像が得られる。Next, the combustion control method in this embodiment will be described with reference to FIGS. The image of the surface of the combustible material layer, that is, the surface of the combustion layer of the dust captured by the infrared camera 1 is passed through the bandpass filter 2 so that carbon dioxide (CO 2 ) and water vapor (H 2 O) which are the main components of the combustion flame 120. A captured image from which the influence of 1) is removed is obtained.
【００３０】即ち、図３に示されるように、燃焼火炎１
２０の主成分である炭酸ガスＣＯ2（炭酸ガス）及びＨ2
Ｏ（水蒸気）の波長ｗが３．８〜４μｍの範囲（ｗ0の
範囲）では前記ＣＯ2（炭酸ガス）及びＨ2Ｏ（水蒸気）
による吸収、放射が少なく、燃焼火炎１２０の「たなび
き」の影響を受けない可燃物層の表面温度の計測波長と
なる。一方、前記波長ｗが３μｍ以下の領域では、す
す、煤塵による吸収、放射の影響がきわめて大きく、ま
た前記波長ｗが４μｍを超えるとＣＯ2（炭酸ガス）及
びＨ2Ｏ（水蒸気）による吸収、放射が急に大きくな
り、可燃物層の表面温度の計測波長としては不適であ
る。That is, as shown in FIG. 3, the combustion flame 1
CO 2 (CO 2 ) and H 2 which are the main components of 20
When the wavelength w of O (water vapor) is in the range of 3.8 to 4 μm (w 0 range), the CO 2 (carbon dioxide gas) and H 2 O (water vapor) are used.
Is a measurement wavelength of the surface temperature of the combustible material layer that is not absorbed and radiated by the above, and is not affected by the "fluttering" of the combustion flame 120. On the other hand, in the region where the wavelength w is 3 μm or less, the influence of absorption and radiation by soot and dust is extremely large, and when the wavelength w exceeds 4 μm, absorption by CO 2 (carbon dioxide gas) and H 2 O (water vapor), Radiation suddenly increases, which is unsuitable as a measurement wavelength for the surface temperature of the combustible material layer.
【００３１】前記のように、可燃物表面温度の検出信号
を、バンドパスフィルタ２を用いて燃焼火炎の主成分で
ある炭酸ガス（ＣＯ2）及び水蒸気（Ｈ2Ｏ）の影響度が
一定値以下の波長域（３．８〜４μｍの範囲）の光量を
温度換算した熱画像信号を抽出し、燃焼火炎の影響を除
去して前記制御装置４に入力するので、燃焼火炎の「た
なびき」の影響が確実に除去された表面温度の検出信号
を得ることができる。As described above, the detection signal of the surface temperature of the combustible substance is detected by the bandpass filter 2 with a constant degree of influence of carbon dioxide (CO 2 ) and water vapor (H 2 O) which are the main components of the combustion flame. Since the thermal image signal in which the light amount in the following wavelength range (range of 3.8 to 4 μm) is temperature-converted is extracted and the influence of the combustion flame is removed and is input to the control device 4, the “tanabiki” of the combustion flame is detected. It is possible to obtain the detection signal of the surface temperature from which the influence is surely removed.
【００３２】かかる燃焼火炎１２０の影響を受けないバ
ンドパスフィルタ２からの撮像画像は表面温度検出装置
３において画像処理して温度信号つまり前記可燃物層の
表面温度信号として制御装置４に入力される。該制御装
置４においては、図２のように、前記表面温度の検出値
ＰＶと予め目標値として設定してある表面温度の設定値
ＳＶと前記表面温度の検出値ＰＶとの偏差（ＳＶ−Ｐ
Ｖ）を取り、リミッタを通過させて乗算器でＫ2を掛け
さらに次の乗算器で−Ｋを掛けた負の信号の２つに分配
される。The picked-up image from the band-pass filter 2 which is not affected by the combustion flame 120 is image-processed by the surface temperature detecting device 3 and inputted to the control device 4 as a temperature signal, that is, a surface temperature signal of the combustible material layer. . In the control device 4, as shown in FIG. 2, a deviation (SV-P) between the detected value PV of the surface temperature and the set value SV of the surface temperature set as a target value in advance and the detected value PV of the surface temperature.
V) is taken, passed through a limiter, multiplied by K 2 by a multiplier, and further divided by -K by the next multiplier, and distributed to two negative signals.
【００３３】前記偏差（ＳＶ−ＰＶ）にＫ2を掛けた正
の信号は、リミッタ通過後、加算器で予め設定されてい
る富化酸素流量設定値に加算され、補正された新しい設
定値ＳＶとしてＰＩＤ制御器に入力され、該設定値ＳＶ
と現状の富化酸素流量ＰＶとの動作により操作量の出力
信号を作り、該出力信号を酸素流量調整弁６に伝送して
該酸素流量調整弁６の開度を調節する。従って、前記制
御装置４は、前記表面温度の検出値ＰＶが大きくなると
（前記偏差（ＳＶ−ＰＶ）が小さくなると）、酸素流量
調整弁６の開度を小さくなるように制御する。そして、
一次空気及び酸素の供給量を可燃物の表面温度に適応さ
せて高精度で制御することが可能となるThe positive signal obtained by multiplying the deviation (SV-PV) by K 2 is added to the enriched oxygen flow rate set value preset by the adder after passing through the limiter, and a new corrected set value SV is obtained. Is input to the PID controller as
Then, an output signal of the manipulated variable is created by the operation of the current enriched oxygen flow rate PV, and the output signal is transmitted to the oxygen flow rate adjusting valve 6 to adjust the opening degree of the oxygen flow rate adjusting valve 6. Therefore, the control device 4 controls the opening degree of the oxygen flow rate adjusting valve 6 to decrease when the detected value PV of the surface temperature increases (when the deviation (SV-PV) decreases). And
It becomes possible to control the supply amount of primary air and oxygen to the surface temperature of combustibles with high accuracy.
【００３４】一方、前記偏差（ＳＶ−ＰＶ）に−Ｋを掛
けた負の信号は、リミッタ通過後、加算器で予め設定さ
れている一次空気流量設定値に加算され、補正された新
しい設定値ＳＶとしてＰＩＤ制御器に入力され、該設定
値ＳＶと現状の空気流量流量ＰＶとの動作により操作量
の出力信号を作り、該出力信号を一次空気流量調整弁７
に伝送して該一次空気流量調整弁７の開度を調節する。
従って、前記制御装置４は、前記表面温度の検出値ＰＶ
が大きくなると（前記偏差（ＳＶ−ＰＶ）が小さくなる
と）、一次空気流量調整弁７の開度を大きくなるように
制御する。On the other hand, the negative signal obtained by multiplying the deviation (SV-PV) by -K is added to the preset primary air flow rate set value by the adder after passing the limiter, and the new set value is corrected. It is input to the PID controller as SV, an output signal of the manipulated variable is generated by the operation of the set value SV and the current air flow rate PV, and the output signal is output to the primary air flow rate adjusting valve 7
To adjust the opening of the primary air flow rate adjusting valve 7.
Therefore, the controller 4 detects the detected value PV of the surface temperature PV.
Is increased (the deviation (SV-PV) is decreased), the opening of the primary air flow rate adjusting valve 7 is controlled to be increased.
【００３５】以上のように、前記制御装置４は、前記表
面温度の検出値ＰＶが大きくなると（前記偏差（ＳＶ−
ＰＶ）が小さくなると）、酸素流量調整弁６の開度を小
さくなるように制御し、一次空気流量調整弁７の開度を
大きくなるように制御する（前記表面温度の検出値ＰＶ
が小さくなると前記とは逆の制御を行う）ので、前記風
箱１３０ａ〜１３０ｅへの酸素及び一次空気の供給量を
可燃物の表面温度に適応させて高精度で制御することが
可能となるAs described above, when the detected value PV of the surface temperature becomes large, the control device 4 (the deviation (SV-
(PV) becomes smaller), the opening of the oxygen flow rate adjusting valve 6 is controlled to be smaller, and the opening of the primary air flow rate adjusting valve 7 is controlled to be larger (the detected value PV of the surface temperature PV.
Is smaller than the above value, the reverse control is performed. Therefore, it becomes possible to control the supply amounts of oxygen and primary air to the air boxes 130a to 130e with high accuracy by adapting to the surface temperature of the combustible material.
【００３６】図４に示す第２実施例において、０１はス
トーカ炉１００の頂部に設置されて該ストーカ炉１００
内における燃焼火炎１２０を撮像する赤外線カメラ等の
炉頂カメラである。０３は燃え切り点検出装置で、前記
炉頂カメラ０１での撮像画像を画像処理して前記燃焼火
炎１２０のストーカ１０１の位置に対応する燃え切り点
の位置を検出して後述する制御装置に入力するものであ
る。１３０ａ、１３０ｂ、１３０ｃ、１３０ｄ、１３０
ｅは前記ストーカ１０１を構成する前段の乾燥段から主
燃焼段を経て後段のおき燃焼段１２１の下部に夫々設け
られた風箱である。５は酸素供給装置、９は該酸素供給
装置５と前記各風箱１３０ａ〜１３０ｅへの一次空気管
１１１とを接続する酸素供給管である（該酸素供給管９
は前記風箱１３０ａ〜１３０ｅに直接接続してもよ
い）。６は前記各酸素供給管９の管路を開閉する酸素流
量調整弁である。In the second embodiment shown in FIG. 4, 01 is installed at the top of the stoker furnace 100 and
It is a furnace top camera such as an infrared camera that images the combustion flame 120 inside. Reference numeral 03 is a burn-out point detection device, which performs image processing on the image captured by the furnace top camera 01 to detect the position of the burn-out point corresponding to the position of the stoker 101 of the combustion flame 120 and inputs it to the control device described later. To do. 130a, 130b, 130c, 130d, 130
Reference numeral e is a wind box provided in the lower part of the upstream combustion stage 121, which is a downstream stage of the stoker 101, passes through the main combustion stage, and passes through the main combustion stage. Reference numeral 5 is an oxygen supply device, and 9 is an oxygen supply pipe that connects the oxygen supply device 5 and the primary air pipes 111 to the air boxes 130a to 130e (the oxygen supply pipe 9).
May be directly connected to the air boxes 130a to 130e). Reference numeral 6 denotes an oxygen flow rate adjusting valve that opens and closes the pipeline of each oxygen supply pipe 9.
【００３７】０４は制御装置で、前記燃え切り点検出装
置０３から入力されるストーカ１０１の位置に対応する
燃焼火炎１２０の燃え切り点の位置に基づき、該燃え切
り点の位置が一定値よりも灰側にあるときはストーカ１
０１の主燃焼段１２４の風箱１３０ｂ、１３０ｃ、１３
０ｄ、及びおき燃焼段の風箱１３０ｅへの酸素供給量を
増加せしめ、前記燃え切り点の位置が一定位置よりもご
み供給側にあるときは前記主燃焼段１２４の風箱１３０
ｂ、１３０ｃ、１３０ｄ、及びおき燃焼段の風箱１３０
ｅへの酸素供給量を減少せしめるものである。以上の構
成以外は図１に示す第１実施例と同様であり、これと同
一の部材は同一の符号で示す。Reference numeral 04 denotes a control device which, based on the position of the burn-out point of the combustion flame 120 corresponding to the position of the stoker 101 input from the burn-out point detection device 03, determines the position of the burn-out point above a constant value. Stalker 1 when on the ash side
01 main combustion stage 124 wind boxes 130b, 130c, 13
0d and the amount of oxygen supplied to the wind box 130e of the alternate combustion stage are increased, and when the burn-off point is located on the dust supply side rather than a fixed position, the wind box 130 of the main combustion stage 124 is
b, 130c, 130d, and the air box 130 of the alternate combustion stage
It reduces the amount of oxygen supplied to e. The structure other than the above is the same as that of the first embodiment shown in FIG. 1, and the same members are designated by the same reference numerals.
【００３８】かかる第２実施例において、ストーカ炉１
００の頂部に設置された炉頂カメラ０１で撮像されたス
トーカ炉１００内における燃焼火炎１２０の撮像信号は
燃え切り点検出装置０３に入力される。該燃え切り点検
出装置０３においては、前記撮像画像を画像処理して前
記燃焼火炎１２０のストーカ１０１の位置、つまり該ス
トーカ１０１の主燃焼段１２４からおき燃焼段１２１に
至るストーカ１０１上の位置に対応する燃焼火炎１２０
の燃え切り点の位置を検出して前記制御装置０４に入力
する。In the second embodiment, the stoker furnace 1 is used.
An image pickup signal of the combustion flame 120 in the stoker furnace 100, which is picked up by the furnace top camera 01 installed at the top of 00, is input to the burn-out point detection device 03. In the burn-out point detection device 03, the captured image is image-processed to the position of the stoker 101 of the combustion flame 120, that is, the position on the stoker 101 from the main combustion stage 124 of the stoker 101 to the combustion stage 121. Corresponding combustion flame 120
The position of the burn-out point is detected and input to the control device 04.
【００３９】該制御装置０４においては、燃え切り点検
出装置０３からの、ストーカ１０１上の位置つまり前記
主燃焼段１２４の風箱１３０ｂ、１３０ｃ、１３０ｄ、
及びおき燃焼段の風箱１３０ｅに対応する位置に対応す
る燃え切り点の検出信号に基づき、該燃え切り点の位
置、即ち燃え切り点の位置が、予め設定された基準位置
即ち所要の高温燃焼をなし得る燃焼火炎１２０の燃え切
り点の位置よりも灰側にあるときは、かかる燃え切り点
の位置に対応する風箱（例えば風箱１３０ｂ）への酸素
供給管９に設けられた酸素流量調整弁６の開度を大きく
して前記燃え切り点の位置への酸素供給量を増加せしめ
る。これにより、前記燃え切り点高さの位置における酸
素量が増加して燃焼火炎が強められる。In the control device 04, the position on the stoker 101 from the burn-out point detection device 03, that is, the wind boxes 130b, 130c, 130d of the main combustion stage 124,
Based on the detection signal of the burn-off point corresponding to the position corresponding to the wind box 130e of the vertical combustion stage, the position of the burn-off point, that is, the position of the burn-off point, is the preset reference position, that is, the required high temperature combustion. When it is on the ash side of the position of the burn-out point of the combustion flame 120 capable of achieving the above, the oxygen flow rate provided in the oxygen supply pipe 9 to the wind box (for example, the wind box 130b) corresponding to the position of the burn-off point. The opening of the adjusting valve 6 is increased to increase the amount of oxygen supplied to the position of the burnout point. As a result, the amount of oxygen at the position of the burn-off point height increases and the combustion flame is strengthened.
【００４０】また、前記燃え切り点の位置が前記基準位
置よりもごみ供給側にあるときは、かかる燃え切り点の
位置に対応する風箱（例えば風箱１３０ｃ）への酸素供
給管９に設けられた酸素流量調整弁６の開度を小さくし
て前記燃え切り点の位置への酸素供給量を減少せしめ
る。これにより、前記燃え切り点の位置における酸素量
が減少して燃焼火炎が弱められる。When the position of the burn-off point is on the dust supply side of the reference position, the oxygen supply pipe 9 to the wind box (for example, the wind box 130c) corresponding to the position of the burn-off point is provided. The opening of the oxygen flow rate adjusting valve 6 is reduced to reduce the amount of oxygen supplied to the burn-off point. As a result, the amount of oxygen at the position of the burn-off point is reduced and the combustion flame is weakened.
【００４１】従って、かかる第２実施例によれば、スト
ーカ炉１００内における燃焼火炎１２０の燃え切り点位
置の移動に従い酸素富化される風箱１３０ｂ〜１３０ｅ
の位置つまりストーカ１０１の位置を変化させることが
できて、該燃焼火炎１２０の燃え切り点の高さを常時適
正位置に保持することが可能となる。これにより、主燃
焼段１２４において酸素富化に伴う高温燃焼をむらなく
行うことができてダイオキシンの発生を抑制できる。ま
た、おき燃焼段１２１においても酸素富化に伴う高温燃
焼をむらなく行うことができて、主灰中の未燃物を完全
燃焼せしめることが可能となって該おき燃焼段１２１に
おけるダイオキシンの発生を抑制できるとともに主灰の
性状を向上でき、さらには主灰の燒結を促進して重金属
の溶出を低減できる。Therefore, according to the second embodiment, the air boxes 130b to 130e are enriched with oxygen according to the movement of the burn-out point position of the combustion flame 120 in the stoker furnace 100.
Can be changed, that is, the position of the stoker 101 can be changed, and the height of the burn-out point of the combustion flame 120 can be constantly maintained at an appropriate position. This makes it possible to uniformly perform high-temperature combustion associated with oxygen enrichment in the main combustion stage 124, and suppress generation of dioxins. Further, high temperature combustion due to oxygen enrichment can be performed evenly in the preliminary combustion stage 121, and unburned matter in the main ash can be completely burned, and dioxins are generated in the preliminary combustion stage 121. The properties of the main ash can be improved and the sintering of the main ash can be promoted, and the elution of heavy metals can be reduced.
【００４２】[0042]
【発明の効果】以上記載の如く請求項１ないし３及び請
求項６ないし８の発明によれば、可燃物層の表面温度の
検出信号を、請求項８のようなバンドパスフィルタを用
いて燃焼火炎の主成分である炭酸ガス（ＣＯ2）及び水
蒸気（Ｈ2Ｏ）の影響度が一定値以下の波長域の光量を
温度換算した熱画像信号を抽出し燃焼火炎の影響を除去
して制御装置に入力するので、燃焼火炎の「たなびき」
の影響が確実に除去された表面温度の検出信号を得るこ
とができ、かかる正確な可燃物表面温度の検出信号に基
づいて制御装置により可燃物表面温度の検出値が基準値
よりも高いとき一次空気の供給量を増加せしめるととも
に酸素の供給量を減少せしめるように制御するので、一
次空気及び酸素の供給量を可燃物表面温度に適応させて
高精度で制御することが可能となる。As described above, according to the inventions of claims 1 to 3 and 6 to 8, the detection signal of the surface temperature of the combustible material layer is burned by using the bandpass filter as claimed in claim 8. Control by removing the influence of the combustion flame by extracting the thermal image signal in which the amount of light in the wavelength range where the degree of influence of carbon dioxide (CO 2 ) and water vapor (H 2 O), which are the main components of the flame, is below a certain value is extracted and the influence of the combustion flame is removed. "Tanabiki" of combustion flame as input to the device
It is possible to obtain a detection signal of the surface temperature from which the influence of is reliably removed, and based on such an accurate detection signal of the surface temperature of the combustible material, when the detected value of the surface temperature of the combustible material is higher than the reference value, the primary Since the control is performed so as to increase the supply amount of air and decrease the supply amount of oxygen, it becomes possible to control the supply amounts of primary air and oxygen to the combustible material surface temperature with high accuracy.
【００４３】これにより、燃焼炉の燃焼温度を適正温度
に保持して、該燃焼温度の過小によるダイオキシンの排
出量の増大や該燃焼温度の過大による灰の性状悪化に伴
う灰の焼結及び灰処理装置の損傷の発生、灰の容積増大
による輸送不能等の不具合の発生を防止することができ
る。As a result, the combustion temperature of the combustion furnace is maintained at an appropriate temperature, the amount of dioxin emission is increased due to the combustion temperature being too small, and the ash is sintered and the ash is accompanied by the deterioration of the ash properties due to the combustion temperature being too high. It is possible to prevent damage to the processing device and problems such as inability to transport due to increase in ash volume.
【００４４】また、本発明によれば、ストーカ炉内にお
ける燃焼火炎の燃え切り点の移動に迅速に追従して酸素
富化されるストーカの位置を変化させることができて、
燃焼火炎の燃え切り点の位置を常時適正位置に保持する
ことが可能となる。これにより、主燃焼段において酸素
富化に伴う高温燃焼をむらなく行うことができてダイオ
キシンの発生を抑制できる。また、おき燃焼段において
も酸素富化に伴う高温燃焼をむらなく行うことができ
て、主灰中の未燃物を完全燃焼せしめることが可能とな
って該おき燃焼段におけるダイオキシンの発生を抑制で
きるとともに主灰の性状を向上でき、さらには主灰の燒
結を促進して重金属の溶出を低減できる。Further, according to the present invention, it is possible to change the position of the oxygen-enriched stoker by rapidly following the movement of the burn-out point of the combustion flame in the stoker furnace,
It is possible to always keep the position of the burn-out point of the combustion flame at an appropriate position. This makes it possible to uniformly perform high temperature combustion associated with oxygen enrichment in the main combustion stage, and suppress generation of dioxins. Further, even in the pre-combustion stage, high temperature combustion due to oxygen enrichment can be performed evenly, and it is possible to completely burn unburned matter in the main ash, thereby suppressing the generation of dioxin in the pre-combustion stage. In addition to being able to improve the properties of the main ash, it is possible to accelerate the sintering of the main ash and reduce the elution of heavy metals.
【図１】 本発明の第１実施例に係るストーカ式焼却炉
及びその燃焼制御装置の全体構成図である。FIG. 1 is an overall configuration diagram of a stoker incinerator and a combustion control device therefor according to a first embodiment of the present invention.
【図２】 前記燃焼制御装置の制御フロー図である。FIG. 2 is a control flow chart of the combustion control device.
【図３】 燃焼火炎の撮像画像への影響説明用線図であ
る。FIG. 3 is a diagram for explaining the influence of combustion flame on a captured image.
【図４】 本発明の第２実施例に係るストーカ式焼却炉
及びその燃焼制御装置の全体構成図である。FIG. 4 is an overall configuration diagram of a stoker incinerator and its combustion control device according to a second embodiment of the present invention.
１ 赤外線カメラ
０１ 炉頂カメラ
２ バンドパスフィルタ
３ 表面温度検出装置
４、０４ 制御装置
５ 酸素供給装置
６ 酸素流量調整弁
９ 酸素供給管
７ 一次空気流量調整弁
１００ ストーカ炉
１０１ ストーカ（火格子
１２４ 主燃焼段
１０５ 二次燃焼室
１０８ ごみホッパ
１１１ 一次空気管
１１４ ボイラ
１２０ 燃焼火炎
１２１ おき燃焼段
１２２ 一次燃焼室
１２３ 二次空気管
１３０ａ、１３０ｂ、１３０ｃ、１３０ｄ、１３０ｅ
風箱1 infrared camera 01 furnace top camera 2 bandpass filter 3 surface temperature detection device 4, 04 control device 5 oxygen supply device 6 oxygen flow rate control valve 9 oxygen supply pipe 7 primary air flow rate control valve 100 stoker furnace 101 stoker (mainly grate 124 Combustion stage 105 Secondary combustion chamber 108 Waste hopper 111 Primary air pipe 114 Boiler 120 Combustion flame 121 Every other combustion stage 122 Primary combustion chamber 123 Secondary air pipes 130a, 130b, 130c, 130d, 130e
Wind box
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２３Ｌ 7/00 Ｆ２３Ｌ 7/00 Ａ Ｆ２３Ｍ 11/04 １０３ Ｆ２３Ｍ 11/04 １０３ (72)発明者 野辺 雅典 横浜市中区錦町12番地 三菱重工業株式会 社横浜製作所内 (72)発明者 橘田 岳洋 横浜市金沢区幸浦一丁目８番地１ 三菱重 工業株式会社横浜研究所内 Ｆターム(参考） 3K023 JA01 3K061 HA16 HA17 3K062 AA01 AB02 BA02 CA08 CB03 DA01 DB06 DB08 3K078 AA02 BA03 CA03 CA12 CA21─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) F23L 7/00 F23L 7/00 A F23M 11/04 103 F23M 11/04 103 (72) Inventor Masanori Nobe Yokohama 12 Nishiki-cho, Naka-ku, Yokohama, Mitsubishi Heavy Industries, Ltd. (72) Inventor, Takehiro Katazawa 1-8, Yukiura, Kanazawa-ku, Yokohama F-Term, Yokohama Research Laboratory, Mitsubishi Heavy Industries, Ltd. (reference) 3K023 JA01 3K061 HA16 HA17 3K062 AA01 AB02 BA02 CA08 CB03 DA01 DB06 DB08 3K078 AA02 BA03 CA03 CA12 CA21
Claims (9)
カ上に投入された可燃物層中に供給してガス化を含む一
次燃焼を行い、該可燃物層の上方に設けられた二次燃焼
室に二次空気を供給して二次燃焼を行うようにしたスト
ーカ焼却炉の燃焼制御方法において、前記燃焼炉におけ
る灰を含む前記可燃物層の表面温度を燃焼火炎の影響を
除去する波長域を選択して検出し、該表面温度の検出値
に基づき前記一次空気と酸素の供給量を調整することを
特徴とするストーカ焼却炉の燃焼制御方法。A primary combustion including gasification is performed by supplying primary air and oxygen whose flow rate is adjusted into a combustible material layer put on a stoker, and secondary combustion provided above the combustible material layer. In a combustion control method for a stoker incinerator that supplies secondary air to a chamber to perform secondary combustion, a surface temperature range of the combustible material layer containing ash in the combustion furnace is a wavelength range for removing the influence of a combustion flame. Is selected and detected, and the supply amounts of the primary air and oxygen are adjusted based on the detected value of the surface temperature, and a combustion control method for a stoker incinerator.
いとき、前記一次空気の供給量を増加せしめ、前記酸素
の供給量を減少せしめることを特徴とする請求項１記載
のストーカ焼却炉の燃焼制御方法。2. The stoker incinerator according to claim 1, wherein when the detected value of the surface temperature is higher than a reference value, the supply amount of the primary air is increased and the supply amount of the oxygen is decreased. Combustion control method.
画像により検出し、該撮像画像からバンドパスフィルタ
を介して前記燃焼火炎の主成分である炭酸ガス（Ｃ
Ｏ2）及び水蒸気（Ｈ2Ｏ）の影響度が一定値以下の波長
域の光量を温度換算した熱画像信号を選択することを特
徴とする請求項１記載のストーカ焼却炉の燃焼制御方
法。3. The surface temperature is detected from a captured image of the surface of the combustible material, and carbon dioxide (C) which is the main component of the combustion flame is detected from the captured image through a bandpass filter.
The combustion control method for a stoker incinerator according to claim 1, wherein a thermal image signal in which the amount of light in a wavelength range in which the degree of influence of O 2 ) and water vapor (H 2 O) is equal to or less than a certain value is converted is selected.
のストーカ（火格子）の夫々に設けられた風箱を介して
該ストーカ上に投入された可燃物層中に供給してガス化
を含む一次燃焼を行い、該可燃物層の上方に設けられた
二次燃焼室に二次空気を供給して二次燃焼を行うように
したストーカ焼却炉の燃焼制御方法において、前記スト
ーカ炉における燃焼火炎の燃え切り点の位置を検出し、
前記複数段のストーカの燃焼段及びおき燃焼段の風箱の
夫々に流量調整された酸素を供給し、前記燃え切り点の
位置の検出信号に基づき前記各段の風箱への酸素の供給
量を調整することを特徴とするストーカ焼却炉の燃焼制
御方法。4. Gasification by supplying primary air and oxygen whose flow rate has been adjusted to a combustible material layer put on a stoker through a wind box provided in each of the stokers (grate) of a plurality of stages. In the combustion control method of the stoker incinerator, the primary combustion is performed, and secondary combustion is performed by supplying secondary air to the secondary combustion chamber provided above the combustible material layer. Detects the burn-off point position of the combustion flame,
Supplying oxygen with a flow rate adjusted to each of the combustion stages of the plurality of stages of stokers and the air boxes of the alternate combustion stages, and the amount of oxygen supplied to the wind chambers of each stage based on the detection signal of the position of the burn-out point. A method for controlling combustion in a stoker incinerator, comprising:
灰側にあるときは少なくとも前記燃焼段の風箱への酸素
供給量を増加し、前記燃え切り点の位置が一定位置より
もごみ供給側にあるときは少なくとも前記燃焼段の風箱
への酸素供給量を減少することを特徴とする請求項４記
載のストーカ焼却炉の燃焼制御方法。5. When the position of the burn-off point is on the ash side of the fixed position, at least the amount of oxygen supplied to the wind box of the combustion stage is increased, and the position of the burn-off point is more dust than the fixed position. The combustion control method for a stoker incinerator according to claim 4, wherein the oxygen supply amount to at least the air box of the combustion stage is reduced when the stoker is on the supply side.
燃焼炉に投入された可燃物層中に供給して、ガス化を含
む一次燃焼を行うとともに、該可燃物層の上方に設けら
れた二次燃焼室に二次空気を供給して二次燃焼を行うよ
うに構成され、前記一次空気管の管路を開閉する一次空
気流量調整弁を備えた焼却炉の燃焼制御装置において、
前記燃焼炉の可燃物層中に酸素を供給する酸素供給管
と、該酸素供給管の管路を開閉する酸素流量調整弁と、
前記燃焼炉上における灰を含む前記可燃物層の表面温度
を検出する温度検出手段と、該温度検出手段からの表面
温度の検出信号から燃焼火炎の主成分である炭酸ガス
（ＣＯ2）及び水蒸気（Ｈ2Ｏ）の影響を波長域選択によ
り除去する火炎成分除去手段と、該火炎成分除去手段を
経た表面温度の検出信号に基づき前記一次空気流量調整
弁の開度を変化させて一次空気の供給量を調整するとと
もに前記酸素流量調整弁の開度を変化させて酸素の供給
量を調整する制御装置とを備えたことを特徴とするスト
ーカ焼却炉の燃焼制御装置。6. The primary air from the primary air pipe is supplied into the combustible material layer introduced into the combustion furnace of the stoker to perform primary combustion including gasification, and the primary air is provided above the combustible material layer. In a combustion control device for an incinerator, which is configured to supply secondary air to a secondary combustion chamber to perform secondary combustion, and which includes a primary air flow rate adjusting valve that opens and closes the conduit of the primary air pipe,
An oxygen supply pipe for supplying oxygen into the combustible material layer of the combustion furnace, and an oxygen flow rate adjusting valve for opening and closing the pipeline of the oxygen supply pipe,
Temperature detection means for detecting the surface temperature of the combustible material layer containing ash on the combustion furnace, and carbon dioxide (CO 2 ) and water vapor, which are the main components of the combustion flame, from the detection signal of the surface temperature from the temperature detection means. Flame component removing means for removing the influence of (H 2 O) by wavelength range selection, and the opening degree of the primary air flow rate adjusting valve is changed based on the detection signal of the surface temperature passed through the flame component removing means to change the primary air flow rate. A combustion control device for a stoker incinerator, comprising: a control device that adjusts the supply amount and changes the opening of the oxygen flow rate adjusting valve to adjust the oxygen supply amount.
撮像する赤外線カメラと該赤外線カメラによる撮像画像
信号を温度信号に変換する画像処理手段とを有し、前記
制御装置は前記温度検出手段からの表面温度の検出値が
設定された基準値よりも高いとき前記一次空気の供給量
を増加せしめ、前記酸素の供給量を減少せしめるように
構成されたことを特徴とする請求項６記載の焼却炉の燃
焼制御装置。7. The temperature detecting means has an infrared camera for picking up an image of the surface of the combustible material, and an image processing means for converting an image signal picked up by the infrared camera into a temperature signal, and the control device has the temperature detecting means. 7. When the detected value of the surface temperature from is higher than the set reference value, the supply amount of the primary air is increased, and the supply amount of the oxygen is decreased. Combustion control device for incinerator.
撮像画像信号から前記燃焼火炎の主成分である炭酸ガス
（ＣＯ2）及び水蒸気（Ｈ2Ｏ）の影響度が一定値以下の
波長を透過するバンドパスフィルタを備えたことを特徴
とする請求項７記載のストーカ焼却炉の燃焼制御装置。8. The temperature detecting means transmits a wavelength of which the degree of influence of carbon dioxide gas (CO 2 ) and water vapor (H 2 O), which are the main components of the combustion flame, is equal to or less than a certain value from an image signal captured by an infrared camera. The combustion control device for a stoker incinerator according to claim 7, further comprising a bandpass filter.
次空気管からの一次空気をストーカ炉を構成する複数段
のストーカ（火格子）の夫々に設けられた風箱を介して
該ストーカ上に投入された可燃物層中に供給してガス化
を含む一次燃焼を行なうとともに該可燃物層の上方に設
けられた二次燃焼室に二次空気を供給して二次燃焼を行
うように構成された焼却炉の燃焼制御装置において、前
記複数段のストーカの燃焼段及びおき燃焼段の風箱の夫
々に酸素を供給する酸素供給管と、前記各酸素供給管の
管路を開閉する酸素流量調整弁と、前記ストーカ上に燃
焼火炎の燃え切り点の位置を検出する燃え切り点検出装
置と、該燃え切り点検出装置からの燃え切り点の検出信
号が入力され該燃え切り点の検出信号に基づき該燃え切
り点の位置が一定位置よりも灰側にあるときは少なくと
も前記燃焼段の風箱への酸素供給量を増加せしめ、前記
燃え切り点の位置が一定位置よりもごみ供給側にあると
きは少なくとも前記燃焼段の風箱への酸素供給量を減少
せしめる制御装置を備えたことを特徴とするストーカ焼
却炉の燃焼制御装置。9. The primary air from the primary air pipe opened and closed by the primary air flow rate adjusting valve is fed onto the stoker via a wind box provided in each of a plurality of stages of stoker (grate) constituting the stoker furnace. It is configured to perform primary combustion including gasification by supplying it to the charged combustible material layer, and to supply secondary air to a secondary combustion chamber provided above the combustible material layer to perform secondary combustion. In the combustion control device of the incinerator, an oxygen supply pipe for supplying oxygen to each of the combustion stages of the plurality of stokers and the air boxes of the alternate combustion stages, and an oxygen flow rate for opening and closing the pipelines of the oxygen supply pipes. Adjusting valve, burnout point detection device for detecting the position of the burnout point of the combustion flame on the stoker, the detection signal of the burnout point from the burnout point detection device is input and the detection signal of the burnout point The position of the burnout point is fixed based on When it is on the ash side of the installation, it increases at least the oxygen supply amount to the air box of the combustion stage, and when the position of the burn-off point is on the dust supply side from a certain position, at least the air box of the combustion stage. A combustion control device for a stoker incinerator, which is equipped with a control device that reduces the amount of oxygen supplied to the stoker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001363066A JP2003161420A (en) | 2001-11-28 | 2001-11-28 | Combustion control method and combustion control device of stoker incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001363066A JP2003161420A (en) | 2001-11-28 | 2001-11-28 | Combustion control method and combustion control device of stoker incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003161420A true JP2003161420A (en) | 2003-06-06 |
Family
ID=19173476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001363066A Withdrawn JP2003161420A (en) | 2001-11-28 | 2001-11-28 | Combustion control method and combustion control device of stoker incinerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003161420A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010223473A (en) * | 2009-03-23 | 2010-10-07 | Mitsubishi Heavy Industries Environment & Chemical Engineering Co Ltd | Nozzle cleaning device of stoker type incinerator |
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2001
- 2001-11-28 JP JP2001363066A patent/JP2003161420A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010223473A (en) * | 2009-03-23 | 2010-10-07 | Mitsubishi Heavy Industries Environment & Chemical Engineering Co Ltd | Nozzle cleaning device of stoker type incinerator |
| CN104566388A (en) * | 2015-01-16 | 2015-04-29 | 光大环保（中国）有限公司 | Garbage incinerator and incineration method |
| JP5875720B1 (en) * | 2015-02-10 | 2016-03-02 | 株式会社タクマ | Waste incinerator boiler and control method thereof |
| JP2016148470A (en) * | 2015-02-10 | 2016-08-18 | 株式会社タクマ | Control method for waste incinerator boiler |
| JP2019190740A (en) * | 2018-04-25 | 2019-10-31 | 日立造船株式会社 | Fire grate structure and stoker type incinerator |
| JP7015205B2 (en) | 2018-04-25 | 2022-02-02 | 日立造船株式会社 | Grate structure and stoker incinerator |
| CN112384736A (en) * | 2018-10-05 | 2021-02-19 | 三菱重工业株式会社 | Charging type incineration equipment and incineration method of incinerated object |
| CN112384736B (en) * | 2018-10-05 | 2023-04-11 | 三菱重工业株式会社 | Charging type incineration equipment and incineration method of incinerated object |
| CN112762459A (en) * | 2020-12-22 | 2021-05-07 | 无锡市阳泰环境科技有限公司 | Device and method for eliminating dioxin in fly ash |
| CN112762459B (en) * | 2020-12-22 | 2023-05-23 | 无锡市阳泰环境科技有限公司 | Device and method for eliminating dioxin in fly ash |
| CN113512439A (en) * | 2021-08-18 | 2021-10-19 | 上海固类特环境科技有限公司 | Low-temperature pyrolysis method and system |
| JP7477198B2 (en) | 2022-09-01 | 2024-05-01 | 株式会社プランテック | Combustion system and combustion method |
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