JP2002161284A - Coal gasifier - Google Patents
Coal gasifierInfo
- Publication number
- JP2002161284A JP2002161284A JP2000358795A JP2000358795A JP2002161284A JP 2002161284 A JP2002161284 A JP 2002161284A JP 2000358795 A JP2000358795 A JP 2000358795A JP 2000358795 A JP2000358795 A JP 2000358795A JP 2002161284 A JP2002161284 A JP 2002161284A
- Authority
- JP
- Japan
- Prior art keywords
- burner
- slag
- fuel nozzle
- tip
- coal gasifier
- 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.)
- Pending
Links
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、石炭を部分酸化し
て燃料を製造する石炭ガス化炉に関し、バーナの先端部
位に付着・固化したスラグを簡単でしかも確実に除去で
きるようにしたものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coal gasifier for partially oxidizing coal to produce a fuel, and is capable of easily and reliably removing slag adhered and solidified at the tip of a burner. is there.
【０００２】[0002]
【従来の技術】石炭を部分酸化して燃料を製造する石炭
ガス化炉では、微粉炭が供給される燃料ノズルを備えた
バーナが炉内に臨んで設けられ、高温・高圧のもとで空
気または酸素を使って石炭を部分酸化し、H2やCOを主体
とする燃料が製造されるようになっている。石炭ガス化
炉のバーナでは、燃料中に含まれる灰分がバーナ先端に
溶融してスラグとなって付着・固化する問題があった。
バーナ先端にスラグが付着・固化すると、バーナの燃焼
状況が悪化したり、バーナの閉塞等が生じる等の不具合
が発生し、石炭ガス化炉が停止することがあった。この
ため、従来から、バーナの先端部の周囲に蒸気や空気を
噴射して付着・固化したスラグを除去する策が講じられ
ている。2. Description of the Related Art In a coal gasifier for producing fuel by partially oxidizing coal, a burner having a fuel nozzle to which pulverized coal is supplied is provided facing the inside of the furnace, and air is produced under high temperature and high pressure. or coal partial oxidation with oxygen, the fuel mainly of H 2 and CO is adapted to be manufactured. In a burner of a coal gasifier, there was a problem that ash contained in fuel was melted at the tip of the burner to become slag and adhered and solidified.
If the slag adheres to and solidifies at the burner tip, problems such as deterioration of the burner combustion status and burner blockage may occur, and the coal gasifier may be shut down. For this reason, conventionally, measures have been taken to remove the adhered and solidified slag by injecting steam or air around the tip of the burner.
【０００３】[0003]
【発明が解決しようとする課題】しかし、石炭ガス化炉
の灰分は湿った状態であるためスラグは強力に付着して
固化している。このため、蒸気や空気等のガスを噴射し
ただけではスラグを十分に除去できないのが現状であっ
た。However, since the ash of the coal gasifier is in a wet state, the slag is strongly adhered and solidified. For this reason, at present, slag cannot be sufficiently removed only by injecting gas such as steam or air.
【０００４】本発明は上記状況に鑑みてなされたもの
で、強力に付着・固化したスラグであっても簡単確実に
除去することができる石炭ガス化炉を提供することを目
的とする。[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a coal gasifier capable of easily and surely removing even slag strongly adhered and solidified.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
の本発明の石炭ガス化炉は、微粉炭が供給される燃料ノ
ズルを備えたバーナが炉内に臨む石炭ガス化炉におい
て、燃料ノズルを軸方向に移動自在に支持し、燃料ノズ
ルを炉内側に突出駆動させる駆動手段を備えたことを特
徴とする。According to the present invention, there is provided a coal gasifier having a fuel nozzle to which pulverized coal is supplied. And a driving means for driving the fuel nozzle to project inside the furnace.
【０００６】そして、バーナの燃料ノズルの外側にはガ
ス化剤供給筒が備えられ、燃料ノズルの先端外周には金
具が設けられていることを特徴とする。また、バーナの
先端部を監視する監視手段を備え、監視手段の情報によ
り駆動手段の駆動を制御する制御手段を設け、制御手段
には、バーナの先端部にスラグが付着・固化したことを
判断する判断機能が備えられ、バーナの先端部にスラグ
が付着・固化した際に駆動手段を駆動して燃料ノズルを
炉内側に突出駆動させることを特徴とする。[0006] A gasifying agent supply cylinder is provided outside the fuel nozzle of the burner, and a fitting is provided on the outer periphery of the tip of the fuel nozzle. The burner has a monitoring means for monitoring the tip of the burner, and a control means for controlling the driving of the driving means based on the information of the monitoring means. The control means determines that the slag has adhered and solidified to the tip of the burner. When the slag adheres and solidifies to the tip of the burner, the driving means is driven to drive the fuel nozzle to project inside the furnace.
【０００７】また、監視手段はバーナの先端部の温度を
検出する温度検出手段であり、制御手段の判断機能は、
温度の低下を判定してスラグの付着・固化を判断するこ
とを特徴とする。また、監視手段はバーナの先端部近傍
の圧力と燃料ノズル内もしくはガス化剤供給筒内の圧力
との差圧を検出する差圧検出手段であり、制御手段の判
断機能は、差圧の上昇を判定してスラグの付着・固化を
判断することを特徴とする。また、監視手段はバーナの
先端部近傍の明るさを検出する輝度検出手段であり、制
御手段の判断機能は、輝度の低下を判定してスラグの付
着・固化を判断することを特徴とする。また、燃料ノズ
ルの径Ｄと突出距離Ｌとの関係Ｌ／Ｄを１０以下とした
ことを特徴とする。The monitoring means is a temperature detecting means for detecting the temperature of the tip of the burner.
The method is characterized in that the temperature drop is determined to determine the adhesion and solidification of the slag. The monitoring means is a differential pressure detecting means for detecting a differential pressure between the pressure near the tip of the burner and the pressure in the fuel nozzle or the gasifying agent supply cylinder. Is determined to determine adhesion and solidification of the slag. The monitoring means is a luminance detecting means for detecting the brightness near the tip of the burner, and the judging function of the control means judges a decrease in the luminance to judge the adhesion and solidification of the slag. Further, the relationship L / D between the diameter D of the fuel nozzle and the projection distance L is set to 10 or less.
【０００８】[0008]
【発明の実施の形態】以下図面に基づいて本発明の実施
形態例を説明する。図１には本発明の第１実施形態例に
係る石炭ガス火炉の要部断面を示してある。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross section of a main part of a coal gas fired furnace according to a first embodiment of the present invention.
【０００９】図に示すように、石炭ガス火炉１の炉壁２
の所定位置には図示しない耐火材を有する開口２ａが設
けられ、開口２ａにはバーナ３が設けられている。バー
ナ３は、水冷ノズル４の内周後側に設けられるガス化剤
供給筒５が備えられ、ガス化剤供給筒５には供給口６か
らガス化剤Ｓが導入される。ガス化剤供給筒５の内周に
は圧力シール７を介して燃料ノズル８が支持され、即
ち、燃料ノズル８の外側にはガス化剤供給筒５が備えら
れ、燃料ノズル８には微粉炭及び窒素等の搬送ガスから
なる燃料Ｆが送られる。燃料ノズル８から燃料Ｆが供給
されると共にガス化剤供給筒５からガス化剤Ｓが供給さ
れ、燃焼により炉内で石炭が部分酸化して燃料が製造さ
れる。As shown in the figure, a furnace wall 2 of a coal gas furnace 1
Is provided with an opening 2a having a refractory material (not shown), and a burner 3 is provided in the opening 2a. The burner 3 is provided with a gasifying agent supply cylinder 5 provided on the inner circumference rear side of the water cooling nozzle 4, and the gasifying agent S is introduced into the gasifying agent supply cylinder 5 from a supply port 6. A fuel nozzle 8 is supported on the inner periphery of the gasifying agent supply tube 5 via a pressure seal 7, that is, a gasifying agent supply tube 5 is provided outside the fuel nozzle 8, and the fuel nozzle 8 And a fuel F comprising a carrier gas such as nitrogen. The fuel F is supplied from the fuel nozzle 8 and the gasifying agent S is supplied from the gasifying agent supply cylinder 5, and the coal is partially oxidized in the furnace by combustion to produce fuel.
【００１０】燃料ノズル８はガス化剤供給筒５に対して
軸方向に移動自在に支持され、燃料ノズル８は駆動手段
としてのエアシリンダ９により石炭ガス火炉１の炉内側
に突出自在となっている。石炭ガス化炉１のバーナ３で
は、水冷ノズル４の先端周囲、即ち、燃料ノズル８の先
端外周に、燃料Ｆ中に含まれる灰分が溶融してスラグ１
１となって付着・固化する。スラグ１１が付着・固化し
た場合、燃焼を止めることなく燃料Ｆを供給した状態
で、エアシリンダ９により燃料ノズル８を炉内側に突出
させてスラグ１１に衝突させ、燃料ノズル８によってス
ラグ１１を直接除去する（図中点線で示した状態）。こ
の時、燃料ノズル８中には低温の燃料Ｆが流れているた
め、炉内側に突出して高温に晒されても燃料Ｆによる冷
却効果により過熱して焼損する虞がない。The fuel nozzle 8 is supported movably in the axial direction with respect to the gasifying agent supply cylinder 5, and the fuel nozzle 8 can freely protrude inside the coal gas fired furnace 1 by an air cylinder 9 as a driving means. I have. In the burner 3 of the coal gasifier 1, the ash contained in the fuel F melts around the tip of the water cooling nozzle 4, that is, around the tip of the fuel nozzle 8, and the slag 1
It becomes 1 and adheres and solidifies. When the slag 11 adheres and solidifies, the fuel nozzle 8 is projected to the inside of the furnace by the air cylinder 9 to collide with the slag 11 while the fuel F is supplied without stopping the combustion, and the slag 11 is directly It is removed (the state shown by the dotted line in the figure). At this time, since the low-temperature fuel F flows through the fuel nozzle 8, even if the fuel F protrudes inside the furnace and is exposed to a high temperature, there is no danger of overheating due to the cooling effect of the fuel F and burning.
【００１１】燃料ノズル８の突出距離は、短すぎるとス
ラグ１１に衝突せずに除去することができず、長すぎる
と炉内側に突出する長さが長くなりすぎて高温に晒され
る部位が多くなって焼損の虞が生じる。そこで、本実施
形態例では、燃料ノズル８の径Ｄと突出距離Ｌとの関係
Ｌ／Ｄを１０以下、好ましくは、５以下としている。例
えば、燃料ノズル８の径Ｄが２０mmの場合、突出距離Ｌ
を５０mmとして関係Ｌ／Ｄを２．５としている。燃料ノ
ズル８の径Ｄと突出距離Ｌとの関係Ｌ／Ｄは、燃料ノズ
ル８の径Ｄが大きいほど、即ち、大型の石炭ガス火炉１
であるほど突出距離Ｌを長くし、燃料ノズル８の径Ｄが
小さいほど、即ち、小型の石炭ガス火炉１であるほど突
出距離Ｌを短くすることが好ましい。燃料ノズル８の突
出距離を径に応じて規定することで、燃料ノズル８を突
出させ過ぎずにスラグ１１に確実に衝突させることがで
き、スラグ１１の除去と燃料ノズル８の焼損防止とを両
立させることができる。If the protruding distance of the fuel nozzle 8 is too short, it cannot be removed without colliding with the slag 11, and if it is too long, the protruding length inside the furnace becomes too long, and many parts are exposed to high temperatures. As a result, there is a risk of burning. Therefore, in the present embodiment, the relationship L / D between the diameter D of the fuel nozzle 8 and the projection distance L is set to 10 or less, preferably 5 or less. For example, when the diameter D of the fuel nozzle 8 is 20 mm, the protrusion distance L
Is 50 mm, and the relation L / D is 2.5. The relationship L / D between the diameter D of the fuel nozzle 8 and the protruding distance L is such that the larger the diameter D of the fuel nozzle 8 is, that is, the larger the coal gas furnace 1 is,
It is preferable that the protrusion distance L be longer as the diameter of the fuel nozzle 8 is smaller, that is, the smaller the diameter D of the fuel nozzle 8, ie, the smaller the coal gas fired furnace 1, the shorter the protrusion distance L. By defining the protruding distance of the fuel nozzle 8 according to the diameter, the fuel nozzle 8 can reliably collide with the slag 11 without excessively protruding, and both removal of the slag 11 and prevention of burning of the fuel nozzle 8 can be achieved. Can be done.
【００１２】一方、バーナ３の先端部を監視する監視手
段が備えられ、監視手段の情報によりバーナ３の先端部
（水冷ノズル４の先端周囲）にスラグ１１が付着・固化
したことを判断する判断機能を備えた制御手段１２が設
けられている。制御手段１２でスラグ１１が付着・固化
したことが判断されると、エアシリンダ９に駆動指令が
出力され、燃料ノズル８が突出駆動される。燃料ノズル
８を突出駆動させて基の位置に戻す場合、好ましくは、
速度を速くすることで燃料ノズル８の焼損の虞を低下さ
せることができる。また、制御手段１２に、監視手段の
情報によりスラグ１１が除去されたことを判断する機能
を付加し、スラグ１１が除去されたことが判断されるま
で繰り返して燃料ノズル８を突出駆動させることで、更
に、確実にスラグ１１を除去することができる。尚、監
視手段を設けずに、スラグ１１の有無に拘らず所定時間
毎に燃料ノズル８を突出駆動させてスラグ１１を除去す
るようにしてもよい。On the other hand, a monitoring means for monitoring the tip of the burner 3 is provided, and it is determined by the information of the monitoring means whether the slag 11 has adhered and solidified to the tip of the burner 3 (around the tip of the water cooling nozzle 4). A control means 12 having a function is provided. When the control means 12 determines that the slag 11 has adhered and solidified, a drive command is output to the air cylinder 9 and the fuel nozzle 8 is driven to protrude. When the fuel nozzle 8 is driven to protrude and returned to the original position, preferably
By increasing the speed, the risk of burning of the fuel nozzle 8 can be reduced. Further, a function of determining that the slag 11 has been removed is added to the control means 12 based on the information of the monitoring means, and the fuel nozzle 8 is repeatedly driven to protrude until it is determined that the slag 11 has been removed. Further, the slag 11 can be reliably removed. Note that the slag 11 may be removed by driving the fuel nozzle 8 to project every predetermined time regardless of the presence or absence of the slag 11 without providing the monitoring means.
【００１３】監視手段を説明する。図に示したように、
バーナ３の先端の温度を検出する温度検出手段１５が燃
料ノズル８に設けられ、温度検出手段１５の情報が制御
手段１２に入力される。制御手段１２では、温度検出手
段１５で検出される温度が低下した場合（例えば2000℃
から600 ℃に低下）、スラグ１１が付着・固化して炉内
からの輻射熱が遮られたと判断し、エアシリンダ９に駆
動指令が出力される。更に、図に示したように、バーナ
３の先端部近傍の圧力と供給口６の圧力との差を検出す
る差圧検出手段１６が設けられ、差圧検出手段１６の情
報が制御手段１２に入力される。尚、差圧検出手段１６
はバーナ３の先端部近傍の圧力と燃料ノズル８内の圧力
との差圧を検出する構成とすることも可能である。制御
手段１２では、差圧検出手段１６で検出される差圧が上
昇した場合、スラグ１１が付着・固化してバーナ３の先
端が閉塞したと判断し、エアシリンダ９に駆動指令が出
力される。The monitoring means will be described. As shown in the figure,
Temperature detecting means 15 for detecting the temperature at the tip of the burner 3 is provided in the fuel nozzle 8, and information from the temperature detecting means 15 is input to the control means 12. In the control means 12, when the temperature detected by the temperature detection means 15 decreases (for example, 2000 ° C.
The temperature is lowered to 600 ° C.), the slag 11 adheres and solidifies, and it is determined that the radiant heat from the furnace is interrupted, and a drive command is output to the air cylinder 9. Further, as shown in the figure, a differential pressure detecting means 16 for detecting a difference between the pressure near the tip of the burner 3 and the pressure at the supply port 6 is provided, and the information of the differential pressure detecting means 16 is sent to the control means 12. Is entered. The differential pressure detecting means 16
May be configured to detect the pressure difference between the pressure near the tip of the burner 3 and the pressure inside the fuel nozzle 8. When the differential pressure detected by the differential pressure detecting means 16 rises, the control means 12 determines that the slag 11 adheres and solidifies and the tip of the burner 3 is closed, and outputs a drive command to the air cylinder 9. .
【００１４】監視手段を設けたことにより、スラグ１１
が付着・固化した場合には、直ちに燃料ノズル８を突出
駆動させてスラグ１１を除去することができる。このた
め、スラグ１１の付着・固化を防止することができ、運
転停止等の事態に至ることがなくなる。By providing the monitoring means, the slag 11
When slag adheres and solidifies, the slag 11 can be removed by immediately driving the fuel nozzle 8 to protrude. For this reason, adhesion and solidification of the slag 11 can be prevented, and a situation such as operation stop does not occur.
【００１５】尚、監視手段としては、図２に示したよう
に、輝度検出手段としての光ファイバ１７をバーナ３の
先端に臨ませて設け、光ファイバ１７で検出される明る
さの情報を制御手段１２に入力することも可能である。
この場合、制御手段１２では、光ファイバ１７で検出さ
れる輝度が低下した（暗くなった）場合、スラグ１１が
付着・固化してバーナ３の先端が閉塞したと判断し、エ
アシリンダ９に駆動指令が出力される。また、監視手段
としては、温度検出手段１５、差圧検出手段１６及び光
ファイバ１７の少なくとも１つを備えていてもよく、ま
た、任意の手段を組み合わせてもよい。As shown in FIG. 2, the monitoring means is provided with an optical fiber 17 as a luminance detecting means facing the tip of the burner 3, and controls the brightness information detected by the optical fiber 17. It is also possible to input to the means 12.
In this case, when the luminance detected by the optical fiber 17 decreases (darkens), the control means 12 determines that the slag 11 has adhered and solidified and the tip of the burner 3 has been closed, and the air cylinder 9 is driven. Command is output. Further, the monitoring means may include at least one of the temperature detecting means 15, the differential pressure detecting means 16, and the optical fiber 17, or may be a combination of arbitrary means.
【００１６】従って、上述した石炭ガス化炉１では、バ
ーナ３の先端部に強力に付着・固化したスラグ１１であ
っても簡単確実に除去すると共に付着を防止して閉塞を
なくすことができるので、バーナ３での燃焼状況が安定
し、安定した運転が可能となる。Therefore, in the above-described coal gasifier 1, even the slag 11 strongly adhered and solidified to the tip of the burner 3 can be easily and reliably removed, and the adhesion can be prevented to eliminate the blockage. The combustion condition in the burner 3 is stabilized, and stable operation is possible.
【００１７】図３、図４に基づいて本発明の第２実施形
態例を説明する。図３には本発明の第２実施形態例に係
る石炭ガス火炉の要部断面、図４には燃料ノズル８の先
端部の斜視状態を示してある。尚、図１に示した部材と
同一部材には同一符号を付して重複する説明は省略して
ある。A second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a sectional view of a main part of a coal gas fired furnace according to a second embodiment of the present invention, and FIG. The same members as those shown in FIG. 1 are denoted by the same reference numerals, and duplicate description is omitted.
【００１８】図に示すように、燃料ノズル８の先端外周
には筒状の金具２１が固定され、エアシリンダ９の駆動
により燃料ノズル８と共に金具２１が炉内側に突出する
ようになっている。このため、燃料ノズル８と共に金具
２１がスラグ１１に衝突し、１回の突出動により広い範
囲でスラグ１１を除去することが可能となる。図示の実
施形態例でも、温度検出手段１５、差圧検出手段１６及
び光ファイバ１７の監視手段を適宜設けることが可能で
ある。As shown in the figure, a cylindrical metal fitting 21 is fixed to the outer periphery of the tip of the fuel nozzle 8, and the metal nozzle 21 projects together with the fuel nozzle 8 into the furnace by driving the air cylinder 9. For this reason, the metal fitting 21 collides with the slag 11 together with the fuel nozzle 8, and the slag 11 can be removed in a wide range by one projecting movement. In the illustrated embodiment, the temperature detecting means 15, the differential pressure detecting means 16, and the monitoring means for the optical fiber 17 can be provided as appropriate.
【００１９】図５に基づいて本発明の第３実施形態例を
説明する。図５には本発明の第３実施形態例に係る石炭
ガス火炉の要部断面を示してある。尚、図１に示した部
材と同一部材には同一符号を付して重複する説明は省略
してある。A third embodiment of the present invention will be described with reference to FIG. FIG. 5 shows a cross section of a main part of a coal gas fired furnace according to a third embodiment of the present invention. The same members as those shown in FIG. 1 are denoted by the same reference numerals, and duplicate description is omitted.
【００２０】図示の実施形態例は、ガス化剤供給筒５が
備えられておらず、炉壁２の開口２ａには水冷ノズル４
と燃料ノズル８とから構成されるバーナ２２が備えられ
ている。そして、燃料ノズル８は圧力シール７を介して
水冷ノズル４に対して移動自在に支持され、エアシリン
ダ９の駆動により燃料ノズル８が突出駆動される。そし
て、監視手段として差圧検出手段１６が設けられ、差圧
検出手段１６ではバーナ２２の先端部近傍の炉内圧力と
燃料ノズル８内の圧力との差圧が検出される。このた
め、ガス化剤供給筒５が備えられていないバーナ２２で
あっても、スラグ１１を除去することが可能となる。In the illustrated embodiment, the gas-cooling agent supply cylinder 5 is not provided, and the water cooling nozzle 4 is provided in the opening 2 a of the furnace wall 2.
And a fuel nozzle 8. The fuel nozzle 8 is supported movably with respect to the water cooling nozzle 4 via the pressure seal 7, and the fuel nozzle 8 is driven to protrude by driving the air cylinder 9. Further, a differential pressure detecting means 16 is provided as a monitoring means, and the differential pressure detecting means 16 detects a differential pressure between the pressure in the furnace near the tip of the burner 22 and the pressure in the fuel nozzle 8. Therefore, even if the burner 22 is not provided with the gasifying agent supply cylinder 5, the slag 11 can be removed.
【００２１】[0021]
【発明の効果】本発明の石炭ガス化炉は、微粉炭が供給
される燃料ノズルを備えたバーナが炉内に臨む石炭ガス
化炉において、燃料ノズルを軸方向に移動自在に支持
し、燃料ノズルを炉内側に突出駆動させる駆動手段を備
えたので、燃料ノズルを突出させスラグに衝突させるこ
とでスラグを除去することができる。この結果、バーナ
の先端部に強力に付着・固化したスラグであっても簡単
確実に除去すると共に付着を防止して閉塞をなくすこと
ができる、バーナでの燃焼状況を安定させて安定した運
転が可能になる。According to the coal gasifier of the present invention, in a coal gasifier in which a burner provided with a fuel nozzle to which pulverized coal is supplied faces the inside of the furnace, the fuel nozzle supports the fuel nozzle movably in the axial direction. Since the driving means for driving the nozzle to project inside the furnace is provided, the slag can be removed by projecting the fuel nozzle and colliding with the slag. As a result, it is possible to easily and reliably remove even the slag strongly adhered and solidified at the tip of the burner, prevent adhesion and eliminate blockage, and stabilize the combustion condition in the burner to achieve stable operation. Will be possible.
【００２２】そして、バーナの燃料ノズルの外側にはガ
ス化剤供給筒が備えられ、燃料ノズルの先端外周には金
具が設けられているので、燃料ノズルと共に金具を突出
させスラグに衝突させることで広い範囲のスラグを除去
することが可能になる。Since the gasifying agent supply cylinder is provided outside the fuel nozzle of the burner, and a metal fitting is provided on the outer periphery of the tip of the fuel nozzle, the metal fitting is projected together with the fuel nozzle to collide with the slag. A wide range of slag can be removed.
【００２３】また、バーナの先端部を監視する監視手段
を備え、監視手段の情報により駆動手段の駆動を制御す
る制御手段を設け、制御手段には、バーナの先端部にス
ラグが付着・固化したことを判断する判断機能が備えら
れ、バーナの先端部にスラグが付着・固化した際に駆動
手段を駆動して燃料ノズルを炉内側に突出駆動させるよ
うにしたので、スラグが付着・固化した場合には、直ち
に燃料ノズルを突出駆動させてスラグを除去することが
でき、スラグの付着・固化を防止して運転停止等の事態
に至ることをなくすことができる。The burner has a monitoring means for monitoring the tip of the burner, and a control means for controlling the driving of the driving means based on the information of the monitoring means. The control means has a slag attached and solidified at the tip of the burner. The slag is attached and solidified at the tip of the burner by driving the drive means to drive the fuel nozzle to the inside of the furnace. In this case, the slag can be removed by immediately driving the fuel nozzle to protrude, the slag can be prevented from adhering and solidifying, and the situation such as stoppage of operation can be avoided.
【００２４】また、監視手段はバーナの先端部の温度を
検出する温度検出手段であり、制御手段の判断機能は、
温度の低下を判定してスラグの付着・固化を判断するよ
うにしたので、温度変化によりスラグを除去することが
可能になる。また、監視手段はバーナの先端部近傍の圧
力と燃料ノズル内もしくはガス化剤供給筒内の圧力との
差圧を検出する差圧検出手段であり、制御手段の判断機
能は、差圧の上昇を判定してスラグの付着・固化を判断
するようにしたので、ガス化剤もしくは燃料の圧力変化
によりスラグを除去することが可能になる。また、監視
手段はバーナの先端部近傍の明るさを検出する輝度検出
手段であり、制御手段の判断機能は、輝度の低下を判定
してスラグの付着・固化を判断するようにしたので、明
るさの変化によりスラグを除去することが可能になる。The monitoring means is a temperature detecting means for detecting the temperature at the tip of the burner.
Since the temperature drop is determined to determine the adhesion and solidification of the slag, it is possible to remove the slag by a change in temperature. The monitoring means is a differential pressure detecting means for detecting a differential pressure between the pressure near the tip of the burner and the pressure in the fuel nozzle or the gasifying agent supply cylinder. Is determined to determine the adhesion and solidification of the slag, so that the slag can be removed by a change in the pressure of the gasifying agent or the fuel. The monitoring means is a luminance detecting means for detecting the brightness near the tip of the burner, and the judging function of the control means judges a decrease in the luminance to judge the adhesion and solidification of the slag. The change in the height makes it possible to remove the slag.
【００２５】また、燃料ノズルの径Ｄと突出距離Ｌとの
関係Ｌ／Ｄを１０以下としたので、燃料ノズルを突出さ
せ過ぎずにスラグに確実に衝突させることができ、スラ
グの除去と燃料ノズルの焼損防止とを両立させることが
できる。Further, since the relationship L / D between the diameter D of the fuel nozzle and the protruding distance L is set to 10 or less, the fuel nozzle can reliably collide with the slag without excessively protruding. Prevention of nozzle burnout can be achieved.
【図１】本発明の第１実施形態例に係る石炭ガス火炉の
要部断面図。FIG. 1 is a sectional view of a main part of a coal gas furnace according to a first embodiment of the present invention.
【図２】監視手段の他の実施形態例を表すバーナ先端部
の断面図。FIG. 2 is a sectional view of a burner tip portion showing another embodiment of the monitoring means.
【図３】本発明の第２実施形態例に係る石炭ガス火炉の
要部断面図。FIG. 3 is a sectional view of a main part of a coal gas furnace according to a second embodiment of the present invention.
【図４】図３中の燃料ノズル先端部の斜視図。FIG. 4 is a perspective view of a tip portion of a fuel nozzle in FIG. 3;
【図５】本発明の第３実施形態例に係る石炭ガス火炉の
要部断面図。FIG. 5 is a sectional view of a main part of a coal gas fired furnace according to a third embodiment of the present invention.
１ 石炭ガス化炉 ２ 炉壁 ３ バーナ ４ 水冷ノズル ５ ガス化剤供給筒 ６ 供給口 ７ 圧力シール ８ 燃料ノズル ９ エアシリンダ １１ スラグ １２ 制御手段 １５ 温度検出手段 １６ 差圧検出手段 １７ 光ファイバ ２１ 金具 ２２ バーナ Ｆ 燃料 Ｓ ガス化剤 DESCRIPTION OF SYMBOLS 1 Coal gasifier 2 Furnace wall 3 Burner 4 Water cooling nozzle 5 Gasification agent supply cylinder 6 Supply port 7 Pressure seal 8 Fuel nozzle 9 Air cylinder 11 Slag 12 Control means 15 Temperature detection means 16 Differential pressure detection means 17 Optical fiber 21 Metal fitting 22 Burner F Fuel S Gasifier
───────────────────────────────────────────────────── 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） Ｆ２３Ｊ 1/06 Ｆ２３Ｊ 1/06 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (Reference) F23J 1/06 F23J 1/06
Claims (7)
バーナが炉内に臨む石炭ガス化炉において、燃料ノズル
を軸方向に移動自在に支持し、燃料ノズルを炉内側に突
出駆動させる駆動手段を備えたことを特徴とする石炭ガ
ス化炉。In a coal gasification furnace in which a burner provided with a fuel nozzle to which pulverized coal is supplied faces the inside of the furnace, the fuel nozzle is movably supported in the axial direction, and the fuel nozzle is driven to protrude inside the furnace. A coal gasifier comprising means.
れ、燃料ノズルの先端外周には金具が設けられているこ
とを特徴とする石炭ガス化炉。2. The coal gasifier according to claim 1, wherein a gasifying agent supply cylinder is provided outside the fuel nozzle of the burner, and a metal fitting is provided on an outer periphery of a tip of the fuel nozzle.
情報により駆動手段の駆動を制御する制御手段を設け、
制御手段には、バーナの先端部にスラグが付着・固化し
たことを判断する判断機能が備えられ、バーナの先端部
にスラグが付着・固化した際に駆動手段を駆動して燃料
ノズルを炉内側に突出駆動させることを特徴とする石炭
ガス化炉。3. A burner according to claim 1, further comprising: a monitor for monitoring a tip portion of the burner; and a controller for controlling driving of the drive unit based on information of the monitor.
The control means is provided with a judgment function for judging that the slag has adhered and solidified on the tip of the burner. When the slag adhered and solidified on the tip of the burner, the driving means is driven to move the fuel nozzle inside the furnace. A coal gasifier characterized by being driven to protrude from a coal gasifier.
段であり、制御手段の判断機能は、温度の低下を判定し
てスラグの付着・固化を判断することを特徴とする石炭
ガス化炉。4. The monitoring means according to claim 3, wherein the monitoring means is a temperature detecting means for detecting a temperature of a tip portion of the burner, and a judging function of the control means judges a decrease in the temperature to judge the adhesion and solidification of the slag. A coal gasifier characterized by the above.
しくはガス化剤供給筒内の圧力との差圧を検出する差圧
検出手段であり、制御手段の判断機能は、差圧の上昇を
判定してスラグの付着・固化を判断することを特徴とす
る石炭ガス化炉。5. The control means according to claim 3, wherein the monitoring means is a pressure difference detecting means for detecting a pressure difference between a pressure near the tip of the burner and a pressure in the fuel nozzle or the gasifying agent supply cylinder. The coal gasifier has a judging function of judging a rise in differential pressure to judge slag adhesion / solidification.
検出手段であり、制御手段の判断機能は、輝度の低下を
判定してスラグの付着・固化を判断することを特徴とす
る石炭ガス化炉。6. The monitoring device according to claim 3, wherein the monitoring device is a brightness detection device for detecting brightness near a tip portion of the burner, and the determination function of the control device determines a decrease in the brightness to determine the adhesion and solidification of the slag. A coal gasifier characterized by making a judgment.
項において、 燃料ノズルの径Ｄと突出距離Ｌとの関係Ｌ／Ｄを１０以
下としたことを特徴とする石炭ガス化炉。7. The coal gasifier according to claim 1, wherein the relationship L / D between the diameter D of the fuel nozzle and the projection distance L is 10 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000358795A JP2002161284A (en) | 2000-11-27 | 2000-11-27 | Coal gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000358795A JP2002161284A (en) | 2000-11-27 | 2000-11-27 | Coal gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002161284A true JP2002161284A (en) | 2002-06-04 |
Family
ID=18830637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000358795A Pending JP2002161284A (en) | 2000-11-27 | 2000-11-27 | Coal gasifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002161284A (en) |
Cited By (8)
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| WO2009069330A1 (en) * | 2007-11-27 | 2009-06-04 | Mitsubishi Heavy Industries, Ltd. | Burner for highly caking coal and gasification furnace |
| JP2012102981A (en) * | 2010-11-15 | 2012-05-31 | Jfe Engineering Corp | Melting furnace for gasifying waste |
| JP2014502664A (en) * | 2011-01-14 | 2014-02-03 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | Gasification reactor |
| CN103939924A (en) * | 2014-03-05 | 2014-07-23 | 北京国电富通科技发展有限责任公司 | Intelligent control system for dry slag cooling air amount |
| JP2018066524A (en) * | 2016-10-21 | 2018-04-26 | 三菱日立パワーシステムズ株式会社 | Burner device, cooling pipe breakage detection method of burner device, and cooling medium control method of burner device |
| WO2019159873A1 (en) * | 2018-02-19 | 2019-08-22 | 三菱日立パワーシステムズ株式会社 | Powder fuel supply device, gasification furnace facility, gasification compound power generation facility, and control method for powder fuel supply device |
| CN114777507A (en) * | 2022-04-26 | 2022-07-22 | 浙江伊诺环保科技股份有限公司 | Fly ash jetting circulating combustion system |
| CN116064173A (en) * | 2023-02-16 | 2023-05-05 | 山东兖矿国拓科技工程股份有限公司 | Water-coal-slurry process burner |
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| JP2009127972A (en) * | 2007-11-27 | 2009-06-11 | Mitsubishi Heavy Ind Ltd | Highly caking coal burner and gasifying furnace |
| KR101227310B1 (en) * | 2007-11-27 | 2013-02-07 | 미츠비시 쥬고교 가부시키가이샤 | Burner for highly caking coal and gasification furnace |
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| JP2012102981A (en) * | 2010-11-15 | 2012-05-31 | Jfe Engineering Corp | Melting furnace for gasifying waste |
| KR101900118B1 (en) * | 2011-01-14 | 2018-09-18 | 에어 프로덕츠 앤드 케미칼스, 인코오포레이티드 | Gasification reactor |
| JP2014502664A (en) * | 2011-01-14 | 2014-02-03 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | Gasification reactor |
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| CN103939924A (en) * | 2014-03-05 | 2014-07-23 | 北京国电富通科技发展有限责任公司 | Intelligent control system for dry slag cooling air amount |
| US11384933B2 (en) | 2016-10-21 | 2022-07-12 | Mitsubishi Power, Ltd. | Burner device, cooling pipe breakage detection method of burner device, and refrigerant control method of burner device |
| WO2018073998A1 (en) * | 2016-10-21 | 2018-04-26 | 三菱日立パワーシステムズ株式会社 | Burner device, method for detecting breakage of burner device cooling tube, and method for controlling burner device cooling medium |
| CN109844409A (en) * | 2016-10-21 | 2019-06-04 | 三菱日立电力系统株式会社 | The cooling medium control method of burner apparatus, the cooling tube damage testing method of burner apparatus and burner apparatus |
| JP2018066524A (en) * | 2016-10-21 | 2018-04-26 | 三菱日立パワーシステムズ株式会社 | Burner device, cooling pipe breakage detection method of burner device, and cooling medium control method of burner device |
| WO2019159873A1 (en) * | 2018-02-19 | 2019-08-22 | 三菱日立パワーシステムズ株式会社 | Powder fuel supply device, gasification furnace facility, gasification compound power generation facility, and control method for powder fuel supply device |
| JP2019143011A (en) * | 2018-02-19 | 2019-08-29 | 三菱日立パワーシステムズ株式会社 | Powder fuel supply system, gasification furnace facility, gasification combined power generating installation and method for controlling powder fuel supply system |
| US11292975B2 (en) | 2018-02-19 | 2022-04-05 | Mitsubishi Power, Ltd. | Powder fuel supply apparatus, gasfier unit, integrated gasification combined cycle, and control method of powder fuel supply apparatus |
| JP7123569B2 (en) | 2018-02-19 | 2022-08-23 | 三菱重工業株式会社 | POWDER FUEL SUPPLY DEVICE, GASIFIER FACTOR FACILITY AND COMBINED GASIFICATION COMBINED CYCLE EQUIPMENT AND METHOD OF CONTROLLING POWDER FUEL SUPPLY DEVICE |
| CN114777507A (en) * | 2022-04-26 | 2022-07-22 | 浙江伊诺环保科技股份有限公司 | Fly ash jetting circulating combustion system |
| CN114777507B (en) * | 2022-04-26 | 2024-04-16 | 浙江伊诺环保集团股份有限公司 | Fly ash jetting circulation combustion system |
| CN116064173A (en) * | 2023-02-16 | 2023-05-05 | 山东兖矿国拓科技工程股份有限公司 | Water-coal-slurry process burner |
| CN116064173B (en) * | 2023-02-16 | 2023-08-25 | 山东兖矿国拓科技工程股份有限公司 | Water-coal-slurry process burner |
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