JP2003056822A - Supply method and apparatus for combustible substance in fluidized bed gasifying furnace - Google Patents
Supply method and apparatus for combustible substance in fluidized bed gasifying furnaceInfo
- Publication number
- JP2003056822A JP2003056822A JP2001247163A JP2001247163A JP2003056822A JP 2003056822 A JP2003056822 A JP 2003056822A JP 2001247163 A JP2001247163 A JP 2001247163A JP 2001247163 A JP2001247163 A JP 2001247163A JP 2003056822 A JP2003056822 A JP 2003056822A
- Authority
- JP
- Japan
- Prior art keywords
- fluidized bed
- combustible material
- furnace
- combustible
- supply mechanism
- 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
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Landscapes
- Gasification And Melting Of Waste (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、都市ごみや産業廃
棄物或いは、バイオマス廃棄物や医療廃棄物、廃タイヤ
或いはシュレッダーダスト等の自動車廃棄物等の可燃物
をガス化し、可燃性の生成ガスとする流動層ガス化炉に
該可燃物を供給する流動層ガス化炉の可燃物供給方法及
び可燃物供給装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention gasifies combustible substances such as municipal solid waste, industrial waste, biomass waste, medical waste, automobile waste such as waste tires or shredder dust, and produces a combustible product gas. The present invention relates to a combustible material supply method and a combustible material supply device for a fluidized bed gasification furnace, which supplies the combustible material to the fluidized bed gasification furnace.
【０００２】[0002]
【従来の技術】近年、都市ごみや産業廃棄物或いは、バ
イオマス廃棄物や医療廃棄物、廃タイヤ或いはシュレッ
ダーダスト等の自動車廃棄物等、廃棄物の処理に、これ
らの廃棄物を流動層ガス化炉の流動層の還元雰囲気下で
ガス化し、該ガス化された生成ガスを溶融炉で高温燃焼
させ、該生成ガスに含まれるチャー等の未燃炭素成分を
燃焼させると共に、該生成ガスに含まれる灰分を溶融
し、溶融スラグ化するガス化溶融施設がある。2. Description of the Related Art In recent years, for the treatment of municipal solid waste, industrial waste, biomass waste, medical waste, automobile waste such as waste tires or shredder dust, these wastes are gasified in a fluidized bed. The gasified gas in the fluidized bed of the furnace is gasified, the gasified product gas is burned at a high temperature in a melting furnace, and unburned carbon components such as char contained in the product gas are burned and contained in the product gas. There is a gasification and melting facility that melts the ash generated and melts it into slag.
【０００３】図１はこの種のガス化溶融施設で用いられ
る、流動層ガス化炉及び該流動層ガス化炉に可燃物を供
給する可燃物供給装置の概略構成例を示す図である。図
示するように、流動層ガス化炉１０は下部に流動媒体
（主に硅砂）が下方から導入される（吹き込まれる）流
動化ガス１２により流動する流動層１１が設けられてい
る。可燃物投入口１３から投入される都市ごみや産業廃
棄物或いは、バイオマス廃棄物や医療廃棄物、廃タイヤ
或いはシュレッダーダスト等の自動車廃棄物等の可燃物
１４は、流動層１１内の還元雰囲気下でガス化され、ガ
ス化された生成ガス１７は流動層１１内を抜け出してフ
リーボード１５を通って、生成ガス出口１６から図示し
ない溶融炉に導かれる。FIG. 1 is a diagram showing a schematic configuration example of a fluidized bed gasification furnace and a combustible material supply device for supplying a combustible material to the fluidized bed gasification furnace used in this type of gasification and melting facility. As shown in the figure, the fluidized bed gasification furnace 10 is provided at the bottom with a fluidized bed 11 which is fluidized by a fluidized gas 12 into which a fluidizing medium (mainly silica sand) is introduced (blown) from below. Combustible substances 14 such as municipal waste and industrial waste, biomass wastes, medical wastes, automobile wastes such as waste tires or shredder dust, which are input from the combustibles input port 13, are discharged under the reducing atmosphere in the fluidized bed 11. The produced gas 17 which has been gasified and gasified in step (1) flows out of the fluidized bed 11, passes through the freeboard 15, and is guided from the produced gas outlet 16 to a melting furnace (not shown).
【０００４】この種の流動層ガス化炉１０は炉内圧力が
負圧（外部圧力より低い）になっているので、可燃物投
入口１３から外部の空気が炉内にリークするのを防止す
る必要がある。そのため、例えば可燃物投入口１３に接
続されるシュート１８にシール機能を有するダンパー１
９、１９を二重に設け（所謂ダブルダンパー機構）、ク
レーン２１でホッパー２０に投入される可燃物１４を該
ダンパー１９、１９を介して間欠的に炉内に供給すると
共に、二重に設けたダンパー１９、１９のシール作用に
より、可燃物投入口１３から外部空気が炉内にリークす
るのを阻止している。In the fluidized bed gasification furnace 10 of this type, the pressure inside the furnace is a negative pressure (lower than the external pressure), so that the outside air is prevented from leaking into the furnace from the combustible material inlet 13. There is a need. Therefore, for example, the damper 1 having a sealing function for the chute 18 connected to the combustible material input port 13
9, 19 are provided in double (so-called double damper mechanism), and the combustible material 14 charged into the hopper 20 by the crane 21 is intermittently supplied into the furnace via the dampers 19, 19 and is also provided in double. Due to the sealing action of the dampers 19 and 19, the external air is prevented from leaking into the furnace through the combustible material inlet 13.
【０００５】しかしながら、上記のように炉内に可燃物
を間欠的に供給する方法では、供給される可燃物が流動
層１１内で迅速にガス化されるため、流動層ガス化炉１
０で生成される生成ガス１７が可燃物の間欠的供給に連
動して間欠的に大きく変動し、可燃物の安定したガス化
を行うための流動層ガス化炉の運転制御に支障をきたす
と共に、後段の溶融炉で流動層ガス化炉１０からの生成
ガスを安定して燃焼させる運転制御にも支障をきたすと
いう問題がある。However, in the method of intermittently supplying the combustible material into the furnace as described above, the combustible material supplied is rapidly gasified in the fluidized bed 11, so that the fluidized bed gasification furnace 1
The generated gas 17 generated at 0 fluctuates intermittently greatly in association with the intermittent supply of combustibles, which hinders the operation control of the fluidized bed gasification furnace for stable gasification of combustibles. However, there is a problem in that the operation control in which the generated gas from the fluidized bed gasification furnace 10 is stably burned in the subsequent melting furnace is also hindered.
【０００６】[0006]
【発明が解決しようとする課題】本発明は上述の点に鑑
みてなされたもので、流動層ガス化炉内の生成ガスの変
動が少なく、安定したガス化のための運転制御が容易と
なる流動層ガス炉の可燃物供給方法及び可燃物供給装置
を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and the fluctuation of the generated gas in the fluidized bed gasification furnace is small, and the operation control for stable gasification is facilitated. An object of the present invention is to provide a combustible material supply method and a combustible material supply apparatus for a fluidized bed gas furnace.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
請求項１に記載の発明は、流動媒体が流動化ガスによっ
て流動する流動層を具備し、該流動層に投入される可燃
物をガス化する流動層ガス化炉の可燃物供給方法であっ
て、外部空気が炉内にリークするのを阻止するシール機
能を有する第１の可燃物供給機構から不定量で供給され
る可燃物を該シール機能を有し且つ定量性を有する第２
の可燃物供給機構で所定の定量を維持しながら炉内に供
給することを特徴とする。In order to solve the above-mentioned problems, the invention according to claim 1 is provided with a fluidized bed in which a fluidized medium is fluidized by a fluidizing gas, and a combustible material charged into the fluidized bed is gasified. A method for supplying combustible substances in a fluidized bed gasification furnace, wherein a combustible substance supplied in an indeterminate amount from a first combustible substance supply mechanism having a sealing function for preventing external air from leaking into the furnace is used. Second with sealing function and quantitative
It is characterized in that the combustible material is supplied into the furnace while maintaining a predetermined amount.
【０００８】上記のようにシール機能を有する第１の可
燃物供給機構から不定量で供給される可燃物を第２の可
燃物供給機構で所定の定量で炉内に供給するので、炉内
でガス化される生成ガスの変動が少なくなり、流動層ガ
ス化炉の安定したガス化運転制御が容易となる。また、
ガス化される生成ガスの変動量が小さいことから、流動
層ガス化炉に続く溶融炉の安定した運転制御も容易に実
行できる。As described above, since the second combustible material supply mechanism supplies a predetermined quantity of combustible material supplied from the first combustible material supply mechanism having a sealing function into the furnace, Fluctuations in the produced gas to be gasified are reduced, and stable gasification operation control of the fluidized bed gasification furnace is facilitated. Also,
Since the amount of fluctuation of the produced gas to be gasified is small, stable operation control of the melting furnace following the fluidized bed gasification furnace can be easily executed.
【０００９】請求項２に記載の発明は、請求項１に記載
の可燃物供給方法において、シール機能は第１及び第２
の可燃物供給機構内を移動する可燃物により行われるマ
テリアルシール機能であることを特徴とする。According to a second aspect of the present invention, in the combustible substance supply method according to the first aspect, the sealing function is the first and second aspects.
The material sealing function is performed by the combustible material moving in the combustible material supply mechanism.
【００１０】上記のようにシール機能を可燃物供給機構
内を移動する可燃物により行わせるマテリアルシール機
能とすることにより、可燃物供給機構自体にシール機能
を奏するための格別な機構を設ける必要がない。Since the sealing function is the material sealing function performed by the combustible material moving in the combustible material supply mechanism as described above, it is necessary to provide the combustible material supply mechanism itself with a special mechanism for performing the sealing function. Absent.
【００１１】請求項３に記載の発明は、流動媒体が流動
化ガスによって流動する流動層を具備し、該流動層に投
入される可燃物をガス化する流動層ガス化炉の可燃物供
給装置であって、外部空気が炉内にリークするのを阻止
するシール機能を有する第１の可燃物供給機構と、該第
１の可燃物供給機構で供給される可燃物をシール機能を
有し且つ所定の定量で炉内に供給する第２の可燃物供給
機構を具備することを特徴とする。According to a third aspect of the present invention, a combustible material supply device for a fluidized bed gasification furnace is provided which has a fluidized bed in which a fluidized medium is fluidized by a fluidizing gas and which gasifies a combustible material introduced into the fluidized bed. And a first combustible material supply mechanism having a sealing function of preventing external air from leaking into the furnace, and a combustible material supplied by the first combustible material supply mechanism having a sealing function. It is characterized by comprising a second combustible material supply mechanism for supplying the combustible material in a predetermined amount.
【００１２】上記のようにシール機能を有する第１及び
第２の可燃物供給機構を具備することにより、これら可
燃物供給機構を通して炉内にリークする外部空気を阻止
しながら、第１の可燃物供給機構で不定量に供給された
可燃物を第２の可燃物供給機構により所定の定量で炉内
に供給できるから、炉内でガス化される生成ガスの変動
が少なくなり、流動層ガス化炉の安定したガス化運転制
御が容易となる。また、ガス化される生成ガスの変動量
が小さいことから、流動層ガス化炉に続く溶融炉の安定
した運転制御も容易に実行できる。By providing the first and second combustible material supply mechanisms having the sealing function as described above, the first combustible material is prevented while preventing external air leaking into the furnace through these combustible material supply mechanisms. Since the second combustible material supplying mechanism can supply the combustible material supplied in an indeterminate amount by the supply mechanism into the furnace in a predetermined quantity, the fluctuation of the product gas gasified in the furnace is reduced and the fluidized bed gasification is performed. Stable gasification operation control of the furnace becomes easy. Further, since the fluctuation amount of the produced gas to be gasified is small, stable operation control of the melting furnace following the fluidized bed gasification furnace can be easily executed.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施の形態例を図
面に基づいて説明する。図２は本発明に係る流動層ガス
化炉及び該流動層ガス化炉に可燃物を供給する可燃物供
給装置の概略構成を示す図である。図２において、図１
と同一符号を付した部分は同一又は相当部分を示す。な
お、他の図においても同様とする。図２に示すように、
流動層ガス化炉１０の可燃物投入口１３にモータ２８で
駆動されるスクリューコンベア２４を具備する可燃物供
給機構（第２の可燃物供給機構）２２を設け、該可燃物
供給機構２２に接続して２重のダンパー１９、１９（ダ
ブルダンパー）を具備するシュート２３を設け、更に該
シュート２３に接続してコンベア２５を設けている。こ
のコンベア２５及びシュート２３で第１の可燃物供給機
構を構成している。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing a schematic configuration of a fluidized bed gasifier according to the present invention and a combustible material supply device for supplying a combustible material to the fluidized bed gasifier. In FIG. 2, FIG.
The parts to which the same reference numerals are given indicate the same or corresponding parts. The same applies to other figures. As shown in FIG.
A combustible material supply mechanism (second combustible material supply mechanism) 22 including a screw conveyor 24 driven by a motor 28 is provided at the combustible material supply port 13 of the fluidized bed gasification furnace 10 and is connected to the combustible material supply mechanism 22. Further, a chute 23 having double dampers 19 and 19 (double damper) is provided, and a conveyor 25 is provided in connection with the chute 23. The conveyer 25 and the chute 23 constitute a first combustible material supply mechanism.
【００１４】ホッパー２６にクレーン２１等で投入され
る都市ごみや産業廃棄物或いは、バイオマス廃棄物や医
療廃棄物、廃タイヤ或いはシュレッダーダスト等の自動
車廃棄物等の可燃物１４は、コンベア２５により搬送さ
れ、シュート２３の上部に投入される。シュート２３に
投入された可燃物は、シール機能を有する２重のダンパ
ー１９、１９の動作により間欠的に可燃物供給機構２２
に投入される。可燃物供給機構２２はそのスクリューコ
ンベア２４により、間欠的に投入された可燃物の間欠性
を緩和して所定の一定量で連続的（定量的）に炉内に投
入する。A combustible material 14 such as municipal waste or industrial waste, which is put into the hopper 26 by the crane 21 or the like, or biomass waste, medical waste, automobile waste such as waste tires or shredder dust, is conveyed by a conveyor 25. Then, it is thrown into the upper part of the chute 23. The combustible material thrown into the chute 23 is intermittently operated by the operation of the double dampers 19 having a sealing function.
Be thrown into. The combustible material supply mechanism 22 reduces the intermittent property of the combustible material intermittently charged by the screw conveyor 24 and continuously (quantitatively) charges into the furnace at a predetermined fixed amount.
【００１５】図３の（ａ）、（ｂ）、（ｃ）はそれぞれ
コンベア２５、シュート２３、可燃物供給機構２２から
供給される可燃物の変動状態を示す図で、コンベア２５
から（ａ）に示す変動状態で供給された可燃物は、シュ
ート２３の２重のダンパー１９、１９の動作により
（ｂ）に示すような間欠的な変動となるが、可燃物供給
機構２２のスクリューコンベア２４の作用により間欠性
は（ｃ）に示すように緩和され連続的な流れとなって炉
内に投入される。3 (a), (b), and (c) are diagrams showing the fluctuation state of the combustibles supplied from the conveyor 25, the chute 23, and the combustibles supply mechanism 22, respectively.
The combustibles supplied in the fluctuation state shown in (a) become intermittent fluctuations as shown in (b) due to the operation of the double dampers 19 and 19 of the chute 23. Due to the action of the screw conveyor 24, the intermittency is alleviated as shown in (c), and a continuous flow is introduced into the furnace.
【００１６】炉内に投入された可燃物１４は、流動層１
１内の還元雰囲気下でガス化され、ガス化された生成ガ
ス１７は流動層１１内を抜け出してフリーボード１５を
通って、生成ガス出口１６から図示しない溶融炉に導か
れる点は、図１に示す従来の流動層ガス化炉と同じであ
るが、ここでは、シュート２３から間欠的に供給された
可燃物１４は可燃物供給機構２２のスクリューコンベア
２４の作用により、略一定量で連続的（定量的）に供給
されるから、流動化ガス１２の供給制御や炉内温度制御
等の流動層ガス化炉１０の安定したガス化運転を行うた
めの制御が極めて容易となる。しかも２重のダンパー１
９、１９のシール機能により、可燃物投入口１３から炉
内にリークする外部空気も阻止できる。The combustible material 14 charged into the furnace is the fluidized bed 1
1 is gasified under a reducing atmosphere in 1 and the gasified product gas 17 escapes from the fluidized bed 11, passes through the freeboard 15, and is guided from the product gas outlet 16 to a melting furnace (not shown). However, the combustible material 14 intermittently supplied from the chute 23 is continuously operated in a substantially constant amount by the action of the screw conveyor 24 of the combustible material supply mechanism 22. Since the gas is supplied (quantitatively), control for performing stable gasification operation of the fluidized bed gasification furnace 10 such as supply control of the fluidized gas 12 and furnace temperature control becomes extremely easy. Moreover, double damper 1
The sealing function of 9 and 19 also prevents external air leaking from the combustibles input port 13 into the furnace.
【００１７】図４は本発明に係る流動層ガス化炉及び該
流動層ガス化炉に可燃物を供給する可燃物供給装置の概
略構成を示す図である。図４において、可燃物投入口１
３にはモータ３２で駆動されるスクリューコンベア３１
を具備する可燃物供給機構３０が接続され、該可燃物供
給機構３０にはモータ３５で駆動されるスクリューコン
ベア３４を具備する可燃物供給機構３３が接続されてい
る。可燃物供給機構３３にはホッパー３６が接続して設
けられ、該ホッパー３６にはシュート３７が接続して設
けられ、更にシュート３７にはホッパー３８が接続して
設けられ、シュート３７とホッパー３８の接続部にはプ
ッシャー３９が設けられている。なお、４０、４１はそ
れぞれ緊急時閉じる緊急遮断弁である。FIG. 4 is a diagram showing a schematic configuration of a fluidized bed gasification furnace and a combustible material supply device for supplying combustible material to the fluidized bed gasification furnace according to the present invention. In FIG. 4, the combustible material input port 1
3 is a screw conveyor 31 driven by a motor 32
Is connected to a combustible substance supply mechanism 30, which is connected to a combustible substance supply mechanism 33 having a screw conveyor 34 driven by a motor 35. A hopper 36 is connected to the combustible material supply mechanism 33, a chute 37 is connected to the hopper 36, and a hopper 38 is connected to the chute 37 to connect the chute 37 and the hopper 38. A pusher 39 is provided at the connecting portion. Reference numerals 40 and 41 are emergency shutoff valves that are closed in an emergency.
【００１８】クレーン２１等でホッパー３８に投入され
る都市ごみや産業廃棄物或いは、バイオマス廃棄物や医
療廃棄物、廃タイヤ或いはシュレッダーダスト等の自動
車廃棄物等の可燃物１４は、プッシャー３９により所定
量ずつ切出され、ホッパー３６に収容される。このよう
にホッパー３８に収容された可燃物１４をプッシャー３
９で所定量ずつ切出してシュート３７に投入するように
構成することにより、プッシヤー３９に収容された可燃
物のシール（マテリアルシール）作用により外部空気の
リークを阻止できる。また、ホッパー３６に収容される
可燃物１４のシール（マテリアルシール）作用によって
も外部空気のリークが阻止される。Combustible materials 14 such as municipal waste and industrial waste, which are thrown into the hopper 38 by the crane 21 or the like, or biomass waste, medical waste, automobile waste such as waste tires or shredder dust, are removed by the pusher 39. It is cut out in a fixed amount and stored in the hopper 36. In this way, the combustible material 14 stored in the hopper 38 is pushed by the pusher 3
By slicing out a predetermined amount at 9 and throwing it into the chute 37, leakage of external air can be prevented by the action of the combustible material (material seal) contained in the pusher 39. In addition, the leakage of external air is also prevented by the action of the seal (material seal) of the combustible material 14 housed in the hopper 36.
【００１９】ホッパー３６に収容された可燃物１４は、
可燃物供給機構３３のスクリューコンベア３４の作用に
より所定の一定量を維持しながら可燃物供給機構３０に
供給される。可燃物供給機構３０ではそのスクリューコ
ンベア３１により、可燃物１４が可燃物投入口１３から
連続的に炉内に供給される。このように可燃物１４を所
定の定量を維持し連続的に供給するので、流動化ガス１
２の供給制御や炉内温度制御等の流動層ガス化炉１０の
安定したガス化運転制御が極めて容易となる。The combustible material 14 contained in the hopper 36 is
By the action of the screw conveyor 34 of the combustible substance supply mechanism 33, the combustible substance supply mechanism 30 supplies the combustible substance while maintaining a predetermined constant amount. In the combustibles supply mechanism 30, the screw conveyor 31 continuously supplies the combustibles 14 from the combustibles input port 13 into the furnace. Since the combustible material 14 is continuously supplied while maintaining a predetermined amount, the fluidized gas 1
Stable gasification operation control of the fluidized bed gasification furnace 10 such as supply control of No. 2 and furnace temperature control becomes extremely easy.
【００２０】なお、可燃物供給量の定量性は、可燃物供
給機構３３のスクリューコンベア３４の作用により行う
から、可燃物供給機構３０は必ずしも定量性を必要とす
るものではなく、可燃物供給機構３３から定量的に供給
される可燃物１４を連続的に炉内に供給できるものであ
ればよく、例えばシュートのようなものであってもよ
い。Since the quantity of the combustible material supply is quantitatively determined by the action of the screw conveyor 34 of the combustible material supply mechanism 33, the combustible material supply mechanism 30 does not necessarily need the quantitativeness, and the combustible material supply mechanism is not necessarily required. It is sufficient that the combustible material 14 quantitatively supplied from 33 can be continuously supplied into the furnace, and for example, a chute or the like may be used.
【００２１】図４に示す可燃物供給装置では、第１の可
燃物供給機構にあたるホッパー３８、プッシャー３９、
シュート３７及びホッパー３６において、収容される可
燃物１４の充填密度を高くしそれにより外部空気のリー
クを阻止するシール（マテリアルシール）作用を持たせ
つつ不定量で供給される可燃物１４を第２の可燃物供給
機構にあたる可燃物供給機構３３及び可燃物供給機構３
０で可燃物１４によるシール（マテリアルシール）作用
を維持しながら所定の一定量で供給することになる。ま
た、外部空気の炉内へのリークをマテリアルシールで阻
止するので、ダンパー等の格別のシール機構を設ける必
要がない。In the combustible material supply device shown in FIG. 4, a hopper 38, a pusher 39, which corresponds to a first combustible material supply mechanism,
In the chute 37 and the hopper 36, the combustible material 14 that is supplied in an indeterminate amount while having a seal (material seal) function of increasing the packing density of the stored combustible material 14 and thereby preventing leakage of external air Combustibles supply mechanism 33 and combustibles supply mechanism 3 corresponding to the other combustibles supply mechanism
When it is 0, a predetermined fixed amount is supplied while maintaining the seal (material seal) action of the combustible material 14. Further, since the material seal prevents leakage of external air into the furnace, it is not necessary to provide a special seal mechanism such as a damper.
【００２２】[0022]
【発明の効果】以上、説明したように各請求項に記載の
発明によれば下記のような優れた効果が得られる。As described above, according to the invention described in each claim, the following excellent effects can be obtained.
【００２３】請求項１に記載の発明によれば、シール機
能を有する第１の可燃物供給機構から不定量で供給され
る可燃物を第２の可燃物供給機構で所定の定量で炉内に
供給するので、炉内でガス化される生成ガスの変動が少
なくなり、流動層ガス化炉の安定したガス化運転制御が
容易となる。また、ガス化される生成ガスの変動量が小
さいことから、流動層ガス化炉に続く溶融炉の安定した
運転制御も容易に実行できる。According to the first aspect of the invention, the inflammable substance supplied in an indeterminate amount from the first inflammable substance supply mechanism having the sealing function is introduced into the furnace in a predetermined amount by the second inflammable substance supply mechanism. Since the gas is supplied, fluctuations in the produced gas gasified in the furnace are reduced, and stable gasification operation control of the fluidized bed gasification furnace is facilitated. Further, since the fluctuation amount of the produced gas to be gasified is small, stable operation control of the melting furnace following the fluidized bed gasification furnace can be easily executed.
【００２４】請求項２に記載の発明によれば、シール機
能を可燃物供給機構内を移動する可燃物により行わせる
マテリアルシール機能とすることにより、可燃物供給機
構自体にシール機能を奏するための格別な機構を設ける
必要がない。According to the second aspect of the present invention, the seal function is a material seal function performed by the combustible material moving in the combustible material supply mechanism, so that the combustible material supply mechanism itself has the seal function. There is no need to provide a special mechanism.
【００２５】請求項３に記載の発明によれば、シール機
能を有する第１及び第２の可燃物供給機構を具備するこ
とにより、これら可燃物供給機構を通して炉内にリーク
する外部空気を阻止しながら、第１の可燃物供給機構で
不定量に供給された可燃物を第２の可燃物供給機構によ
り所定の定量で炉内に供給できるから、炉内でガス化さ
れる生成ガスの変動が少なくなり、流動層ガス化炉の安
定したガス化運転制御が容易となる。また、ガス化され
る生成ガスの変動量が小さいことから、流動層ガス化炉
に続く溶融炉の安定した運転制御も容易に実行できる。According to the third aspect of the present invention, by providing the first and second combustible material supply mechanisms having a sealing function, the external air leaking into the furnace through these combustible material supply mechanisms is blocked. However, since the second combustible material supply mechanism can supply the combustible material supplied in an indeterminate amount by the first combustible material supply mechanism into the furnace in a predetermined quantity, fluctuations in the product gas gasified in the furnace This reduces the number, and facilitates stable gasification operation control of the fluidized bed gasification furnace. Further, since the fluctuation amount of the produced gas to be gasified is small, stable operation control of the melting furnace following the fluidized bed gasification furnace can be easily executed.
【図１】従来の流動層ガス化炉及び可燃物供給装置の概
略構成例を示す図である。FIG. 1 is a diagram showing a schematic configuration example of a conventional fluidized bed gasification furnace and a combustibles supply device.
【図２】本発明に係る流動層ガス化炉及び可燃物供給装
置の概略構成例を示す図である。FIG. 2 is a diagram showing a schematic configuration example of a fluidized bed gasification furnace and a combustible material supply device according to the present invention.
【図３】図２に示す可燃物供給装置の各可燃物供給機構
により供給される可燃物の変動状態を示す図である。FIG. 3 is a diagram showing a fluctuation state of a combustible substance supplied by each combustible substance supply mechanism of the combustible substance supply device shown in FIG. 2.
【図４】本発明に係る流動層ガス化炉及び可燃物供給装
置の概略構成例を示す図である。FIG. 4 is a diagram showing a schematic configuration example of a fluidized bed gasification furnace and a combustible substance supply device according to the present invention.
１０ 流動層ガス化炉 １１ 流動層 １２ 流動化ガス １３ 可燃物投入口 １４ 可燃物 １５ フリーボード １６ 生成ガス出口 １７ 生成ガス １８ シュート １９ ダンパー ２０ ホッパー ２１ クレーン ２２ 可燃物供給機構 ２３ シュート ２４ スクリューコンベア ２５ コンベア ２６ ホッパー ２８ モータ ３０ 可燃物供給機構 ３１ スクリューコンベア ３２ モータ ３３ 可燃物供給機構 ３４ スクリューコンベア ３５ モータ ３６ ホッパー ３７ シュート ３８ ホッパー ３９ プッシャー ４０ 緊急遮断弁 ４１ 緊急遮断弁 10 Fluidized bed gasification furnace 11 fluidized bed 12 Fluidizing gas 13 Combustible material input port 14 Combustibles 15 Freeboard 16 Product gas outlet 17 Product gas 18 shoots 19 damper 20 hopper 21 cranes 22 Combustible material supply mechanism 23 shoots 24 screw conveyor 25 conveyor 26 hopper 28 motors 30 Combustible material supply mechanism 31 screw conveyor 32 motor 33 Combustible material supply mechanism 34 screw conveyor 35 motor 36 hopper 37 shoots 38 hopper 39 pusher 40 Emergency shutoff valve 41 Emergency shutoff valve
───────────────────────────────────────────────────── 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） Ｃ１０Ｊ 3/02 Ｃ１０Ｊ 3/02 Ｆ Ｍ Ｆ２３Ｃ 10/18 Ｆ２３Ｇ 5/027 Ｂ Ｆ２３Ｇ 5/027 Ｚ 5/30 Ｃ 5/30 Ｆ２３Ｃ 11/02 ３１３ (72)発明者 小宮山 賢 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 (72)発明者 中村 雄一 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 Ｆターム(参考） 3K061 AA11 AB02 AC01 AC14 AC17 BA02 BA06 EA01 FA03 3K064 AA10 AB03 AC05 AD08 BA05 3K065 AA11 AB02 AC01 AC14 AC17 BA01 EA06 EA15 EA23 EA26 EA47 EA48 4G070 AA01 AB06 BB32 CA30 CB25─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C10J 3/02 C10J 3/02 FM MF23C 10/18 F23G 5/027 B F23G 5/027 Z 5/30 C5 / 30 F23C 11/02 313 (72) Inventor Ken Komiyama 11-11 Haneda Asahi-cho, Ota-ku, Tokyo Inside the EBARA CORPORATION (72) Inventor Yuichi Nakamura 11-11 Haneda-Asahi-cho, Ota-ku, Tokyo F term in EBARA CORPORATION (reference) 3K061 AA11 AB02 AC01 AC14 AC17 BA02 BA06 EA01 FA03 3K064 AA10 AB03 AC05 AD08 BA05 3K065 AA11 AB02 AC01 AC14 AC17 BA01 EA06 EA15 EA23 EA26 EA47 EA48 4G070 AA01 AB06 AB25 CA32 AB06.
Claims (3)
流動層を具備し、該流動層に投入される可燃物をガス化
する流動層ガス化炉の可燃物供給方法であって、 外部空気が炉内にリークするのを阻止するシール機能を
有する第１の可燃物供給機構から不定量で供給される可
燃物を該シール機能を有し且つ定量性を有する第２の可
燃物供給機構で所定の定量を維持しながら炉内に供給す
ることを特徴とする流動層ガス化炉の可燃物供給方法。1. A method for supplying combustible substances in a fluidized bed gasification furnace, comprising a fluidized bed in which a fluidized medium is fluidized by a fluidizing gas, and gasifying a combustible substance put in the fluidized bed, wherein external air is used. Inflammable substances supplied in an indeterminate amount from the first combustible substance supply mechanism having a sealing function for preventing leakage into the furnace are predetermined by the second combustible substance supply mechanism having the sealing function and having a quantitative property. A method for supplying combustibles in a fluidized bed gasification furnace, characterized in that the combustible material is supplied into the furnace while maintaining a constant amount.
て、 前記シール機能は前記第１及び第２の可燃物供給機構内
を移動する可燃物により行われるマテリアルシール機能
であることを特徴とする流動層ガス化炉の可燃物供給方
法。2. The combustible material supply method according to claim 1, wherein the sealing function is a material seal function performed by a combustible material moving in the first and second combustible material supply mechanisms. Method for supplying combustibles in fluidized bed gasification furnace.
流動層を具備し、該流動層に投入される可燃物をガス化
する流動層ガス化炉の可燃物供給装置であって、 外部空気が炉内にリークするのを阻止するシール機能を
有する第１の可燃物供給機構と、該第１の可燃物供給機
構で供給される可燃物を前記シール機能を有し且つ所定
の定量で炉内に供給する第２の可燃物供給機構を具備す
ることを特徴とする流動層ガス化炉の可燃物供給装置。3. A combustible material supply device for a fluidized bed gasification furnace, comprising a fluidized bed in which a fluidized medium is fluidized by a fluidizing gas, and gasifying a combustible material charged in the fluidized bed, wherein external air is used. A first combustible material supply mechanism having a sealing function of preventing leakage into the furnace, and a combustible material supplied by the first combustible material supply mechanism having the sealing function and having a predetermined fixed amount in the furnace. And a second combustible material supplying mechanism for supplying the combustible material to the fluidized bed gasification furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001247163A JP2003056822A (en) | 2001-08-16 | 2001-08-16 | Supply method and apparatus for combustible substance in fluidized bed gasifying furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001247163A JP2003056822A (en) | 2001-08-16 | 2001-08-16 | Supply method and apparatus for combustible substance in fluidized bed gasifying furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003056822A true JP2003056822A (en) | 2003-02-26 |
| JP2003056822A5 JP2003056822A5 (en) | 2004-12-24 |
Family
ID=19076555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001247163A Pending JP2003056822A (en) | 2001-08-16 | 2001-08-16 | Supply method and apparatus for combustible substance in fluidized bed gasifying furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003056822A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004074409A1 (en) * | 2003-02-18 | 2004-09-02 | Ebara Corporation | Method and device for feeding inflammables to gasifying furnace, and gasification melting system |
| JP2007283253A (en) * | 2006-04-19 | 2007-11-01 | Taiyo Nippon Sanso Corp | Filler filling apparatus |
| WO2009025378A1 (en) | 2007-08-21 | 2009-02-26 | Kobelco Eco-Solutions Co., Ltd. | Waste feeding apparatus, its sealing method, and waste feeding method |
| JP2009085537A (en) * | 2007-10-01 | 2009-04-23 | Kobelco Eco-Solutions Co Ltd | Waste supply apparatus and its sealing method |
| JP2009092370A (en) * | 2007-09-18 | 2009-04-30 | Kobelco Eco-Solutions Co Ltd | Waste feeding method |
| JP2014126250A (en) * | 2012-12-26 | 2014-07-07 | Kawasaki Heavy Ind Ltd | Waste feeding system and method for operating the same |
| CN106090898A (en) * | 2016-07-27 | 2016-11-09 | 长兴云峰炉料有限公司 | One is used for producing energy-saving material high-temperature boiling furnace |
| CN109355107A (en) * | 2018-12-17 | 2019-02-19 | 江苏华威机械制造有限公司 | A kind of coal gas combined gasification equipment |
| WO2022176340A1 (en) * | 2021-02-19 | 2022-08-25 | 株式会社日本製鋼所 | Thermal decomposition extruder, thermal decomposition system, manufacturing method and discharge method for decomposition gas |
-
2001
- 2001-08-16 JP JP2001247163A patent/JP2003056822A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004074409A1 (en) * | 2003-02-18 | 2004-09-02 | Ebara Corporation | Method and device for feeding inflammables to gasifying furnace, and gasification melting system |
| JP2007283253A (en) * | 2006-04-19 | 2007-11-01 | Taiyo Nippon Sanso Corp | Filler filling apparatus |
| EP3112753A1 (en) | 2007-08-21 | 2017-01-04 | Kobelco Eco-Solutions Co., Ltd | Waste-feeding method |
| EP2180255A4 (en) * | 2007-08-21 | 2015-12-23 | Kobelco Eco Solutions Co Ltd | Waste feeding apparatus, its sealing method, and waste feeding method |
| EP3112754A1 (en) | 2007-08-21 | 2017-01-04 | Kobelco Eco-Solutions Co., Ltd | Waste-feeding apparatus and sealing method thereof |
| WO2009025378A1 (en) | 2007-08-21 | 2009-02-26 | Kobelco Eco-Solutions Co., Ltd. | Waste feeding apparatus, its sealing method, and waste feeding method |
| JP2009092370A (en) * | 2007-09-18 | 2009-04-30 | Kobelco Eco-Solutions Co Ltd | Waste feeding method |
| JP2009085537A (en) * | 2007-10-01 | 2009-04-23 | Kobelco Eco-Solutions Co Ltd | Waste supply apparatus and its sealing method |
| JP2014126250A (en) * | 2012-12-26 | 2014-07-07 | Kawasaki Heavy Ind Ltd | Waste feeding system and method for operating the same |
| CN106090898A (en) * | 2016-07-27 | 2016-11-09 | 长兴云峰炉料有限公司 | One is used for producing energy-saving material high-temperature boiling furnace |
| CN106090898B (en) * | 2016-07-27 | 2018-09-07 | 娄底高安环保科技有限公司 | One kind is for producing energy-saving material high-temperature boiling furnace |
| CN109355107A (en) * | 2018-12-17 | 2019-02-19 | 江苏华威机械制造有限公司 | A kind of coal gas combined gasification equipment |
| CN109355107B (en) * | 2018-12-17 | 2023-08-22 | 江苏华威机械制造有限公司 | Coal-to-gas composite gasification device |
| WO2022176340A1 (en) * | 2021-02-19 | 2022-08-25 | 株式会社日本製鋼所 | Thermal decomposition extruder, thermal decomposition system, manufacturing method and discharge method for decomposition gas |
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