JP5628511B2 - Gas nozzle for fluidized bed incinerator - Google Patents

Gas nozzle for fluidized bed incinerator Download PDF

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JP5628511B2
JP5628511B2 JP2009248874A JP2009248874A JP5628511B2 JP 5628511 B2 JP5628511 B2 JP 5628511B2 JP 2009248874 A JP2009248874 A JP 2009248874A JP 2009248874 A JP2009248874 A JP 2009248874A JP 5628511 B2 JP5628511 B2 JP 5628511B2
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fluidized bed
fuel gas
incinerator
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air
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JP2011094868A (en
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平野　誠
誠 平野
田中　康郎
康郎 田中
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Osaka Gas Co Ltd
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Description

本発明は、流動床を流動させて被焼却物を焼却する流動床式焼却炉のガスノズルに関するものである。   The present invention relates to a gas nozzle for a fluidized bed incinerator that incinerates an incinerated product by flowing a fluidized bed.

従来より、ごみ焼却炉や下水汚泥焼却炉として流動床式焼却炉が用いられている（例えば特許文献１参照）。流動床式焼却炉は、図４に示すように、焼却炉本体１内の下部に流動媒体を装填して流動床２１を形成し、流動床２１の上方をフリーボード２２としてある。そして、被焼却物を焼却炉本体１内に投入して流動床２１に混入させるとともに、流動床２１内の下部に設けた散気手段３からの流動エアーにて流動攪拌し、流動床２１内に設けた燃焼手段４にて燃料ガスを流動床２１内に噴出させて流動エアーを燃焼用空気として（あるいは燃料ガスに空気を混入しておいて）燃焼させることで、流動床２１内に混入された被焼却物を均一に効率良く焼却するものである。   Conventionally, fluidized bed incinerators have been used as waste incinerators or sewage sludge incinerators (see, for example, Patent Document 1). As shown in FIG. 4, the fluidized bed incinerator has a fluidized bed 21 formed by loading a fluidized medium in the lower part of the incinerator main body 1, and a freeboard 22 above the fluidized bed 21. Then, the incinerated material is put into the incinerator main body 1 and mixed into the fluidized bed 21, and fluidized and stirred by the fluidized air from the air diffuser 3 provided in the lower part of the fluidized bed 21. The fuel is injected into the fluidized bed 21 by the combustion means 4 provided in the combustion chamber, and the fluidized air is burned as combustion air (or mixed with air in the fuel gas) to be mixed into the fluidized bed 21. The incinerated material to be incinerated is incinerated uniformly and efficiently.

燃焼手段４は燃料ガス管を備えており、燃料ガス管から燃料ガスを噴出することで流動床２１内に燃料ガスを噴出するものであったが、この場合、単に燃料ガス管から側方に燃料ガスを噴出すると、流動床２１は流動エアーにて流動攪拌されるため流動床２１内に留まらずにすぐに流動床２１の上方に燃料ガスが抜けてしまい、流動床２１内での燃料ガスの燃焼効率が低いものであった。   The combustion means 4 includes a fuel gas pipe, and the fuel gas is ejected into the fluidized bed 21 by ejecting the fuel gas from the fuel gas pipe. When the fuel gas is ejected, the fluidized bed 21 is fluidized and agitated by the fluidized air, so that the fuel gas escapes immediately above the fluidized bed 21 without remaining in the fluidized bed 21, and the fuel gas in the fluidized bed 21. The combustion efficiency of was low.

また、従来の既存の焼却炉本体１においては、図４に示すように、炉壁１１に略水平方向に貫通する貫通孔１０を形成し、この貫通孔１０に略直線状の燃料ガス管（図示せず）を備えたガスガン４ａを挿通させて炉内に略水平方向に突出させ、燃料ガス管の先端のガスノズルから側方に燃料ガスを噴出して燃焼させていた。このため、燃料ガスの燃焼効率を、燃料ガス管の炉内への突出方向を変更することで向上させようとしても、貫通孔１０を斜めに形成し直すといった大掛かりな改造工事が必要となり、困難なものであった。   Moreover, in the conventional existing incinerator main body 1, as shown in FIG. 4, a through hole 10 penetrating in a substantially horizontal direction is formed in the furnace wall 11, and a substantially straight fuel gas pipe ( A gas gun 4a equipped with a gas gun (not shown) was inserted and protruded into the furnace in a substantially horizontal direction, and fuel gas was ejected from the gas nozzle at the tip of the fuel gas pipe to the side and burned. For this reason, even if it is intended to improve the combustion efficiency of the fuel gas by changing the direction in which the fuel gas pipe protrudes into the furnace, a large-scale remodeling work such as forming the through hole 10 at an angle is necessary and difficult. It was something.

特開２０００−８１２０６号公報JP 2000-81206 A

本発明は上記の点に鑑みてなされたものであり、その目的とするところは、流動床での燃料ガスの滞留時間が長くなって流動床で燃焼する燃料ガスの量が多くなり、流動床内での燃料ガスの燃焼効率を向上させることができ、更に、燃焼効率の向上を、燃料ガス管の炉内への突出方向を略水平方向から変更せずに達成することができる流動床式焼却炉のガスノズルを提供することを課題とするものである。   The present invention has been made in view of the above points, and the object of the present invention is to increase the amount of fuel gas combusted in the fluidized bed by increasing the residence time of the fuel gas in the fluidized bed. The fluidized bed type can improve the combustion efficiency of the fuel gas in the inside, and can further improve the combustion efficiency without changing the protruding direction of the fuel gas pipe into the furnace from the substantially horizontal direction. An object of the present invention is to provide a gas nozzle for an incinerator.

上記課題を解決するために請求項１に係る発明にあっては、焼却炉本体１内の下部に流動床２１が形成され、流動床２１内の下部に該流動床２１及び流動床２１内に混入された被焼却物を流動攪拌させる流動エアーを散気する散気手段３が設けられ、流動床２１内に燃料ガスを噴出して流動床２１内で燃焼させる燃料ガス管４１がその炉内への突出方向が略水平方向となるように設けられる流動床式焼却炉の燃料ガス管４１に設けられるガスノズル５であって、燃料ガスの噴出方向が斜め下方となるノズル孔５０を複数有する列が周方向に複数列設けられることを特徴とするものである。 In order to solve the above problem, in the invention according to claim 1, a fluidized bed 21 is formed in the lower part of the incinerator body 1, and the fluidized bed 21 and the fluidized bed 21 are formed in the lower part of the fluidized bed 21. An air diffuser 3 for diffusing fluid air for fluidly stirring the mixed incinerated material is provided, and a fuel gas pipe 41 for injecting fuel gas into the fluidized bed 21 and combusting in the fluidized bed 21 is provided in the furnace. A gas nozzle 5 provided in a fuel gas pipe 41 of a fluidized bed incinerator provided so that the protruding direction to the substantially horizontal direction is a row having a plurality of nozzle holes 50 in which the fuel gas ejection direction is obliquely downward. Are provided in a plurality of rows in the circumferential direction .

本発明にあっては、単に側方に燃料ガスを噴出する従来例のように流動攪拌される流動床からすぐに上方に燃料ガスが抜けてしまうことがなく、燃料ガスは流動床内に前記従来例よりも長く留まって流動床内で燃料ガスがよく燃焼して燃焼効率が高まるものである。更に、燃料ガス管の炉内への突出方向を略水平方向としたまま、燃料ガスの噴出方向を斜め下方とすることができるため、燃料ガス管の炉内への突出方向が略水平方向である既存の焼却炉本体においても、燃料ガス管を交換するだけで燃料ガスの噴出方向を斜め下方とすることが可能となる。   In the present invention, the fuel gas does not escape immediately upward from the fluidized bed that is fluidly stirred as in the conventional example in which the fuel gas is simply jetted to the side. The fuel gas stays longer than the conventional example, and the fuel gas burns well in the fluidized bed to increase the combustion efficiency. Furthermore, since the direction of fuel gas injection into the furnace can be made obliquely downward while the direction of protrusion of the fuel gas pipe into the furnace is substantially horizontal, the direction of protrusion of the fuel gas pipe into the furnace is substantially horizontal. Even in an existing incinerator main body, it is possible to make the fuel gas ejection direction obliquely downward simply by replacing the fuel gas pipe.

本発明のガスノズルの一実施形態を示し、（ａ）は側断面図であり、（ｂ）は正面図であり、（ｃ）は前斜め側方より見た斜視図である。1 shows an embodiment of a gas nozzle according to the present invention, in which (a) is a side sectional view, (b) is a front view, and (c) is a perspective view as viewed from the front oblique side. （ａ）〜（ｃ）はそれぞれ同上のガスノズルの他例の正面図である。(A)-(c) is a front view of the other example of the gas nozzle same as the above, respectively. 同上のガスノズルを備えたガスガンの断面図である。It is sectional drawing of the gas gun provided with the gas nozzle same as the above. 流動床式焼却炉の全体概略図である。1 is an overall schematic diagram of a fluidized bed incinerator.

以下、本発明の一実施形態について添付図面に基づいて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

流動床式焼却炉は、被焼却物として汚泥、一般ごみや産業廃棄物等が挙げられるが、特に限定されない。   In the fluidized bed incinerator, sludge, general waste, industrial waste, and the like are listed as incinerated materials, but there is no particular limitation.

流動床式焼却炉の本体である焼却炉本体１は、耐火材にて形成されており、図４に示すように焼却炉本体１内の底部に砂のような流動媒体を装填してあり、この流動媒体にて流動床２１を形成してある。この流動床２１には散気手段３として散気管３ａを配置してあり、この散気管３ａには給気経路１２を経て流動エアを供給するようになっている。この散気管３ａは平行に複数本並設してある。そして給気経路１２から流動エアを散気管３ａに供給することにより流動媒体と被焼却物とを混合攪拌することができるようになっている。また散気管３ａの上には燃焼手段４としてガスガン４ａを配置してあり、ガスガン４ａから燃料ガスを流動床２１内に噴出して流動床２１内で火炎を形成して燃焼するようになっている。このガスガン４ａは図３に示すような構造になっており、外管４０内にはメインの燃料ガス管４１とパイロットガス管４２とを並設してあり、燃料ガス管４１とパイロットガス管４２には夫々燃料ガスと一次空気とを混合した空気予混合の燃料ガスを供給できるようになっている。燃料ガス管４１については後述する。   The incinerator main body 1 which is the main body of the fluidized bed incinerator is formed of a refractory material, and a fluid medium such as sand is loaded at the bottom of the incinerator main body 1 as shown in FIG. The fluidized bed 21 is formed with this fluidized medium. The fluidized bed 21 is provided with an air diffuser 3 a as the air diffuser 3, and fluid air is supplied to the air diffuser 3 a through the air supply path 12. A plurality of the air diffusion tubes 3a are arranged in parallel. The fluid medium and the incinerated material can be mixed and agitated by supplying fluid air from the air supply path 12 to the air diffuser 3a. Further, a gas gun 4a is disposed on the air diffusion pipe 3a as the combustion means 4, and fuel gas is ejected from the gas gun 4a into the fluidized bed 21 to form a flame in the fluidized bed 21 and burn. Yes. The gas gun 4a has a structure as shown in FIG. 3, and a main fuel gas pipe 41 and a pilot gas pipe 42 are provided in parallel in the outer pipe 40, and the fuel gas pipe 41 and the pilot gas pipe 42 are provided. Can be supplied with premixed fuel gas, which is a mixture of fuel gas and primary air. The fuel gas pipe 41 will be described later.

また外管４０の基部には二次空気を導入する空気導入口４３を設けてあり、空気導入口４３から導入された二次空気を取り入れることで燃料ガス管４１とパイロットガス管４２の先端で燃焼をするようになっている。また外管４０の先端の手前には砂のような流動媒体を避けるためのマトリックス４４を装着してある。   In addition, an air introduction port 43 for introducing secondary air is provided at the base of the outer tube 40, and the secondary air introduced from the air introduction port 43 is taken in at the tips of the fuel gas tube 41 and the pilot gas tube 42. It comes to burn. A matrix 44 for avoiding a fluid medium such as sand is mounted in front of the front end of the outer tube 40.

焼却炉本体１内の上部はフリーボード２２（燃焼室）となっており、このフリーボード２２には昇温バーナ１５を装着してある。この昇温バーナ１５は焼却炉本体１の起動時等に燃焼させてフリーボード２２を加熱するようになっている。また焼却炉本体１の上部には焼却する被焼却物を投入するための被焼却物投入口１６を設けてある。焼却炉本体１の上端には排気口１７を設けてあり、この排気口１７から排気経路１３を経て排気ガスを外部に排気できるようになっている。この排気経路１３の途中には熱交換器１４を配置してあり、散気管３ａに給気経路１２を経て供給する流動エアとを熱交換器１４にて熱交換するようになっており、排気ガスで流動エアを加熱して供給することができるようになっている。また焼却炉本体１の下端には排出口（図示せず）を設けてある。   The upper part in the incinerator body 1 is a free board 22 (combustion chamber), and a temperature raising burner 15 is attached to the free board 22. This temperature raising burner 15 is combusted when the incinerator main body 1 is started up to heat the freeboard 22. Further, an incinerator input port 16 is provided in the upper part of the incinerator main body 1 to input an incinerator to be incinerated. An exhaust port 17 is provided at the upper end of the incinerator main body 1, and exhaust gas can be exhausted from the exhaust port 17 through the exhaust path 13 to the outside. A heat exchanger 14 is disposed in the middle of the exhaust path 13, and heat exchange is performed by the heat exchanger 14 with the flowing air supplied to the diffuser pipe 3a via the air supply path 12. The flowing air can be heated and supplied with gas. A discharge port (not shown) is provided at the lower end of the incinerator body 1.

次に、燃料ガス管４１について説明する。図３に示すように、燃料ガス管４１は、本実施形態では断面略円形状をしたもので、前記略円形状をした断面の中心軸が長手方向に直線状に伸びている。なお、燃料ガス管４１の断面は略円形状でなくてもよく特に限定されないが、長手方向（即ち管内の流れ方向）は略直線状に形成されるものである。   Next, the fuel gas pipe 41 will be described. As shown in FIG. 3, the fuel gas pipe 41 has a substantially circular cross section in the present embodiment, and the central axis of the substantially circular cross section extends linearly in the longitudinal direction. The cross section of the fuel gas pipe 41 may not be substantially circular and is not particularly limited, but the longitudinal direction (that is, the flow direction in the pipe) is formed in a substantially straight line.

そして、燃料ガス管４１のフリーボード２２内に突出する側の先端には、ガスノズル５が設けられる。ガスノズル５は、燃料ガス管４１の先端開口を覆って閉塞する略円錐台状をした覆い壁部５１と、覆い壁部５１の外端縁から連設される筒部５２とで主体が構成され、覆い壁部５１の略円錐台状の台部となる略円形をした端面５１ａが燃料ガス管４１の長手方向を向くように設けられる。そして、覆い壁部５１の一部にノズル孔５０となる貫通孔が形成してある。このノズル孔５０は、該ノズル孔５０から噴出される燃料ガスの噴出方向が斜め下方となるように、覆い壁部５１の略円錐状の側面５１ｂの下半部に形成してある。ここで前記斜め下方とは、水平方向から鉛直下方までの間の任意の角度が該当する。図２（ａ）〜（ｃ）にガスノズル５の他例をそれぞれ示す。図２（ａ）はノズル孔５０を周方向に複数個設けた例であり、図２（ｂ）は複数のノズル孔５０を有する列を周方向に複数列設けた例である。また、図２（ｃ）に示すように、ノズル孔５０を端面５１ａに形成したり、側面５１ｂの上半部に形成してあってもよく、少なくとも下半部に形成してあればよい。   A gas nozzle 5 is provided at the tip of the fuel gas pipe 41 that protrudes into the free board 22. The gas nozzle 5 is mainly composed of a cover wall part 51 having a substantially truncated cone shape that covers and closes the front end opening of the fuel gas pipe 41 and a cylindrical part 52 that is provided continuously from the outer edge of the cover wall part 51. A substantially circular end surface 51 a that is a substantially truncated cone-shaped base part of the covering wall part 51 is provided so as to face the longitudinal direction of the fuel gas pipe 41. A through hole that becomes the nozzle hole 50 is formed in a part of the covering wall portion 51. The nozzle hole 50 is formed in the lower half of the substantially conical side surface 51b of the cover wall 51 so that the direction of fuel gas ejected from the nozzle hole 50 is obliquely downward. Here, the diagonally downward corresponds to an arbitrary angle from the horizontal direction to the vertically downward direction. 2A to 2C show other examples of the gas nozzle 5, respectively. FIG. 2A is an example in which a plurality of nozzle holes 50 are provided in the circumferential direction, and FIG. 2B is an example in which a plurality of rows having a plurality of nozzle holes 50 are provided in the circumferential direction. Further, as shown in FIG. 2 (c), the nozzle hole 50 may be formed in the end surface 51a, or may be formed in the upper half of the side surface 51b, and may be formed in at least the lower half.

なお本実施形態では、ガスノズル５の先端形状は上記略円錐台状となっているが、ノズル孔５０からの噴出方向が斜め下方であれば如何なる形状であってもよい。   In the present embodiment, the tip shape of the gas nozzle 5 has a substantially truncated cone shape, but may be any shape as long as the ejection direction from the nozzle hole 50 is obliquely downward.

上記の焼却炉本体１で燃料として用いられる燃料ガスは一般的には都市ガスであって、例えば１３Ａと称される天然ガスである。かかる燃料ガスは都市ガスに限定されず、プロパンガスやブタンガス等であってもよい。   The fuel gas used as fuel in the incinerator main body 1 is generally city gas, for example, natural gas called 13A. Such fuel gas is not limited to city gas, but may be propane gas or butane gas.

上記流動床式焼却炉は、次のように被焼却物の焼却が行われる。被焼却物は被焼却物投入口１６から投入され、上記流動エアの散気により流動媒体と一緒に被焼却物が混合攪拌される。流動床式焼却炉の起動時は昇温バーナ１５が燃焼させられて流動床２１とフリーボード２２が加熱される。ガスガン４ａから流動床２１内に火炎が噴出されて流動床２１が加熱されると共に散気管３ａから流動エアが散気されて流動床２１の流動媒体が流動攪拌され、流動床２１内が８００℃程度に加熱されて被焼却物が焼却される。そしてこの時、本発明におけるようにガスノズル５から燃料ガスが斜め下方に噴出されることで、単に側方に燃料ガスを噴出する従来例のように流動攪拌される流動床２１からすぐに上方に燃料ガスが抜けてしまうことがなく、燃料ガスは流動床２１内に前記場合よりも長く留まって流動床２１内で燃料ガスがよく燃焼して燃焼効率が高まるものである。また、流動床２１で燃焼しなかった未燃焼ガスはフリーボード２２で燃焼させられる。   In the fluidized bed incinerator, the incineration object is incinerated as follows. The incinerated material is introduced from the incinerated material inlet 16, and the incinerated material is mixed and stirred together with the fluid medium by the diffusing air of the flowing air. When the fluidized bed incinerator is started, the temperature raising burner 15 is burned and the fluidized bed 21 and the free board 22 are heated. A flame is ejected from the gas gun 4a into the fluidized bed 21, the fluidized bed 21 is heated, fluidized air is diffused from the diffuser 3a, the fluidized medium in the fluidized bed 21 is fluidly stirred, and the inside of the fluidized bed 21 is 800 ° C. The material to be incinerated is incinerated by being heated to the extent. At this time, the fuel gas is jetted obliquely downward from the gas nozzle 5 as in the present invention, so that the fuel gas is simply jetted laterally, and immediately above the fluidized bed 21 that is fluidly stirred as in the conventional example. The fuel gas does not escape, and the fuel gas stays longer in the fluidized bed 21 than in the above case, and the fuel gas burns well in the fluidized bed 21 to increase the combustion efficiency. The unburned gas that has not been burned in the fluidized bed 21 is burned by the free board 22.

本発明のガスノズル５にあっては、上記のようにガスノズル５から燃料ガスが斜め下方に噴出されて燃焼効率が高まるものであり、更に、燃料ガス管４１の炉内への突出方向が略水平方向である既存の焼却炉本体においても、本発明のガスノズル５を設けた燃料ガス管４１に交換するだけで（更にいえばガスノズル５を交換するだけで）燃料ガスの噴出方向を斜め下方とすることが可能となる。これにより、燃料ガスを側方に噴出する燃料ガス管４１の長手方向を斜め下方に傾けたりする必要がなく、炉壁１１に貫通形成される貫通孔１０を斜めに形成し直すといった大掛かりな改造工事を要することなく、燃料ガスの噴出方向を斜め下方とすることが可能となる。   In the gas nozzle 5 of the present invention, as described above, the fuel gas is ejected obliquely downward from the gas nozzle 5 to increase the combustion efficiency, and the protruding direction of the fuel gas pipe 41 into the furnace is substantially horizontal. Also in the existing incinerator body which is the direction, the fuel gas ejection direction is set to be obliquely downward only by replacing the fuel gas pipe 41 provided with the gas nozzle 5 of the present invention (in other words, by simply replacing the gas nozzle 5). It becomes possible. Thus, it is not necessary to incline the longitudinal direction of the fuel gas pipe 41 for injecting the fuel gas to the side obliquely downward, and a large-scale modification such that the through hole 10 formed through the furnace wall 11 is formed obliquely. It is possible to make the fuel gas ejection direction obliquely downward without requiring construction.

また本発明は、流動床２１から上方に抜ける都市ガス、天然ガス等の空気より比重が小さい燃料ガスを用いる場合に顕著な効果が得られるが、空気より比重が大きい燃料ガスであっても本発明のガスノズル５を使用することができる。   In addition, the present invention provides a remarkable effect when using a fuel gas having a specific gravity smaller than that of air, such as city gas or natural gas, which flows upward from the fluidized bed 21. The inventive gas nozzle 5 can be used.

１ 焼却炉本体
１０ 貫通孔
１１ 炉壁
１２ 給気経路
１３ 排気経路
１４ 熱交換器
１５ 昇温バーナ
１６ 被焼却物投入口
１７ 排気口
２１ 流動床
２２ フリーボード
３ 散気手段
３ａ 散気管
４ 燃焼手段
４ａ ガスガン
４０ 外管
４１ 燃料ガス管
４２ パイロットガス管
４３ 空気導入口
４４ マトリックス
５ ガスノズル
５０ ノズル孔
５１ 覆い壁部
５１ａ 端面
５１ｂ 側面
５２ 筒部 DESCRIPTION OF SYMBOLS 1 Incinerator main body 10 Through-hole 11 Furnace wall 12 Air supply path 13 Exhaust path 14 Heat exchanger 15 Temperature rising burner 16 Incinerator inlet 17 Exhaust outlet 21 Fluidized bed 22 Free board 3 Air diffuser 3a Air diffuser 4 Combustion means 4a Gas gun 40 Outer pipe 41 Fuel gas pipe 42 Pilot gas pipe 43 Air inlet 44 Matrix 5 Gas nozzle 50 Nozzle hole 51 Covering wall part 51a End face 51b Side face 52 Cylindrical part

Claims (1)

焼却炉本体内の下部に流動床が形成され、流動床内の下部に該流動床及び流動床内に混入された被焼却物を流動攪拌させる流動エアーを散気する散気手段が設けられ、流動床内に燃料ガスを噴出して流動床内で燃焼させる燃料ガス管がその炉内への突出方向が略水平方向となるように設けられる流動床式焼却炉の燃料ガス管に設けられるガスノズルであって、燃料ガスの噴出方向が斜め下方となるノズル孔を複数有する列が周方向に複数列設けられることを特徴とする流動床式焼却炉のガスノズル。 A fluidized bed is formed in the lower part of the incinerator main body, and a diffused means for diffusing fluidized air for fluidly stirring the fluidized bed and the incinerated material mixed in the fluidized bed is provided in the lower part of the fluidized bed, A gas nozzle provided in a fuel gas pipe of a fluidized bed incinerator in which a fuel gas pipe for injecting fuel gas into the fluidized bed and combusting in the fluidized bed is provided so that the protruding direction into the furnace is substantially horizontal. A gas nozzle for a fluidized bed incinerator, wherein a plurality of rows having a plurality of nozzle holes in which the fuel gas ejection direction is obliquely downward is provided in the circumferential direction .
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JPS61204123U (en) * 1985-06-05 1986-12-23
JPH06300237A (en) * 1993-04-14 1994-10-28 Babcock Hitachi Kk Fluidized bed type combustion method and apparatus
JP3622060B2 (en) * 1994-08-23 2005-02-23 バブコック日立株式会社 Burner in sand for fluidized bed incinerator and operation method thereof
JPH10160118A (en) * 1996-11-29 1998-06-19 Tokyo Gas Co Ltd Fluid bed heating burner and fluid bed combustion device
JP3004629B1 (en) * 1998-09-04 2000-01-31 川崎重工業株式会社 Start control method and stop control method for partial combustion furnace, and start / stop control device
JP2002130636A (en) * 2000-10-23 2002-05-09 Tokyo Gas Co Ltd Fluidized bed incinerator
JP2005282994A (en) * 2004-03-30 2005-10-13 Osaka Gas Co Ltd Fluidized bed type incinerator
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