JP3402962B2 - Fluidized bed equipment - Google Patents
Fluidized bed equipmentInfo
- Publication number
- JP3402962B2 JP3402962B2 JP28817896A JP28817896A JP3402962B2 JP 3402962 B2 JP3402962 B2 JP 3402962B2 JP 28817896 A JP28817896 A JP 28817896A JP 28817896 A JP28817896 A JP 28817896A JP 3402962 B2 JP3402962 B2 JP 3402962B2
- Authority
- JP
- Japan
- Prior art keywords
- fluidized bed
- ash
- fluidized
- cooling
- gas
- 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.)
- Expired - Fee Related
Links
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、流動床ボイラ、ガ
ス化炉などの流動床装置に関する。
【０００２】
【従来の技術】図２は流動床ボイラ、ガス化炉など従来
の流動床装置の説明図である。図において、符号０１は
流動床容器、０３は流動床の目皿、０４は流動床灰の抜
出し管、０６は流動床灰の冷却用コイル、０８は冷却さ
れた流動床灰の抜出し管である。流動媒体中の流動床灰
は抜出し管０４内を通って流動床容器０１外へ排出され
るが、この流動床灰は８００℃程度と高温のために冷却
する必要があり、冷却用コイル０６などを設置して冷却
を行っている。
【０００３】
【発明が解決しようとする課題】上記のように、従来の
流動床装置においては流動床灰を冷却するために流動床
容器０１の下流に冷却用コイル０６などを設置してお
り、このために流動床の設備が複雑化するとともに、冷
却用コイル０６の磨耗が生じるなどの不具合がある。
【０００４】
【課題を解決するための手段】本発明に係る流動床装置
は上記課題の解決を目的にしており、流動床容器内の第
１の目皿上に第１の流動床を有し同第１の流動床で生成
される流動床灰を抜出し管を介して下方へ排出する流動
床装置において、上記流動床容器内の上記抜出し管の下
流に設置され上記抜出し管を介して排出される流動床灰
を受ける第２の目皿と、上記流動床容器に設けられ同第
２の目皿の下方へガスを供給して同第２の目皿上の流動
床灰を冷却するガス投入管とを備え、同第２の目皿上に
流動床灰冷却用の第２の流動床を形成し、上記ガス投入
管から供給され上記第２の流動床を通過したガスを上記
第１の目皿を通して上記第１の流動床の流動に用いるよ
うに構成してなることを特徴とする。このように、本流
動床装置においては流動床容器内の第１の目皿上の第１
の流動床の抜出し管の下流に第２の目皿を設置しガス投
入管により第２の目皿の下方からガスを供給することに
より流動床容器内の第１の流動床下方に流動床灰冷却用
の第２の流動床が形成されており、流動床灰を冷却する
ための特別な冷却装置を必要とせず、また第２の流動床
での流動床灰冷却用のガスと第１の流動床における流動
媒体の流動用に用いるガスとを共用することにより大量
の冷却用ガスを必要とせず、また流動床灰の冷却と同時
に第１の流動床における流動媒体を流動化するガスが予
熱される。
【０００５】
【発明の実施の形態】図１は本発明の実施の一形態に係
る流動床装置の説明図である。図において、本実施の形
態に係る流動床装置は流動床ボイラ、ガス化炉など流動
床反応器内で生成される流動床灰の冷却を必要とする流
動床装置で、図における符号１は流動床容器、３は第１
の流動床の第１の目皿、１１は流動床灰冷却用の第２の
流動床の第２の目皿、４は流動床灰の抜出し管、９は流
動床灰冷却用のガス投入管である。流動媒体中の流動床
灰は抜出し管４内を通って下方へ排出されるが、この流
動床灰は８００℃程度と高温のために冷却する必要があ
り、本流動床装置においては図に示すように第１の流動
床の第１の目皿３の下部に流動床灰冷却用の第２ の目皿
１１を設置するとともに、この第２の目皿１１の下方か
ら流動床灰冷却用のガスを投入して流動床容器１内に流
動床灰冷却用の第２の流動床を形成している。
【０００６】このように、本流動床装置においては流動
床容器１内に第１の流動床の第１の目皿３と流動床灰冷
却用の第２の流動床の第２の目皿１１とが設置されてい
る。第１の流動床の第１の目皿３上の流動床灰は、抜出
し管４から下部の流動床灰冷却用の第２の流動床に入
る。流動床灰冷却用のガスは、ガス投入管９から流動床
容器１内下部へ投入されて流動床灰冷却用の第２の流動
床の第２の目皿１１を通り、流動床灰冷却用の第２の流
動床の流動床灰層を通過しながら流動床灰を冷却する。
このため、ガス投入管９から流動床容器１内へ投入され
たガスが暖まり、予熱された状態で第１の流動床の第１
の目皿３を通って上方の流動媒体へ供給される。
【０００７】従来の流動床装置においては流動床灰を冷
却するために流動床容器の下流に冷却用コイルなどを設
置しており、このために流動床の設備が複雑化するとと
もに、冷却用コイルの磨耗が生じるなどの不具合がある
が、本流動床装置においては流動床容器１内の第１の流
動床の抜出し管の下流に流動床灰の冷却を行う別の第２
の流動床を設置して流動床灰冷却用のガスに第１の流動
床の流動媒体の流動に用いるガスを利用しており、流動
床灰冷却のために特に別の冷却装置を必要とせず、また
流動床灰冷却用のガスは第１の流動床で流動媒体の流動
に用いるガスを利用することにより大量の流動床灰冷却
用のガスを必要とせず、また流動床灰を冷却すると同時
に流動用ガスを予熱することができるなど、装置ならび
に運転用のコストが低減される。
【０００８】
【発明の効果】本発明に係る流動床装置は前記のように
構成されており、流動床灰を冷却するための特別な冷却
装置を必要とせず、また流動床灰冷却用のガスと第１の
流動床における流動媒体の流動用に用いるガスとを共用
することにより大量の冷却用ガスを必要とせず、また流
動床灰の冷却と同時に第１の流動床における流動媒体を
流動化するガスが予熱されるので、流動床装置および流
動床装置の運転に要するコストの削減が可能になる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluidized bed apparatus such as a fluidized bed boiler and a gasification furnace. FIG. 2 is an explanatory view of a conventional fluidized-bed apparatus such as a fluidized-bed boiler and a gasifier. In the figure, reference numeral 01 denotes a fluidized bed container, 03 denotes a fluidized bed plate, 04 denotes a fluidized bed ash extraction tube, 06 denotes a fluidized bed ash cooling coil, and 08 denotes a cooled fluidized bed ash extraction tube. . The fluidized bed ash in the fluidized medium is discharged to the outside of the fluidized bed container 01 through the extraction pipe 04, but the fluidized bed ash needs to be cooled because of its high temperature of about 800 ° C. Is installed for cooling. [0003] As described above, in the conventional fluidized bed apparatus , a cooling coil 06 or the like is installed downstream of the fluidized bed vessel 01 for cooling fluidized bed ash. This complicates the equipment of the fluidized bed, and causes problems such as abrasion of the cooling coil 06. [0004] A fluidized-bed apparatus according to the present invention has an object to solve the above-mentioned problems, and has the following features .
Oite fluidized bed apparatus for discharging downwardly through the first having a fluidized bed the first fluidized bed ash extraction tube produced in a fluidized bed on the first perforated plate, of the fluidized bed vessel A second tray installed downstream of the extraction pipe and receiving fluidized bed ash discharged through the extraction pipe; and a second tray provided in the fluidized bed container.
Supply gas to the lower part of the second plate and flow it over the second plate
And a gas inlet pipe for cooling the floor ash.
Forming a second fluidized bed for cooling the fluidized bed ash,
The gas supplied from the pipe and passing through the second fluidized bed is
It is used for the flow of the first fluidized bed through the first dish.
It is characterized by comprising . Thus, in the fluidized bed apparatus, the first plate on the first dish in the fluidized bed container
A second tray is installed downstream of the fluidized bed withdrawal pipe, and gas is supplied from below the second tray by a gas inlet pipe, so that the fluidized bed ash falls below the first fluidized bed in the fluidized bed vessel. the second fluidized bed for cooling is formed, without requiring any special cooling device for cooling the fluidized bed ash, and the second fluidized bed
A large amount of cooling gas is not required by sharing the gas for cooling the fluidized bed ash in the first step with the gas used for flowing the fluidized medium in the first fluidized bed, and the first gas is cooled simultaneously with the cooling of the fluidized bed ash . The gas that fluidizes the fluidizing medium in the fluidized bed of the preheater is preheated. FIG. 1 is an explanatory view of a fluidized bed apparatus according to an embodiment of the present invention. In the figure, a fluidized bed apparatus according to the present embodiment is a fluidized bed apparatus which requires cooling of a fluidized bed ash generated in a fluidized bed reactor such as a fluidized bed boiler and a gasification furnace. Floor container, 3 is first
A first dish of a fluidized bed of the second, 11 for a second fluidized bed ash cooling
The second plate 4 of the fluidized bed is a pipe for extracting the fluidized bed ash, and 9 is a gas inlet pipe for cooling the fluidized bed ash. Although fluidized bed ashes in the fluidized medium is discharged downward through the extraction tube 4, the fluidized bed ash must be cooled because of high temperature and about 800 ° C., shown in FIG. In this fluidized bed apparatus we established a first flow first second perforated plate 11 of the fluidized bed ash cooling the bottom of the perforated plate 3 of the bed as, for fluidized bed ash cooled below the second perforated plate 11 A second fluidized bed for fluidized bed ash cooling is formed in the fluidized bed container 1 by introducing gas. As described above, in the present fluidized bed apparatus , the first dish 3 of the first fluidized bed and the second dish 11 of the second fluidized bed for cooling the ash in the fluidized bed vessel 1 are provided . And is installed. The fluidized bed ash on the first dish 3 of the first fluidized bed enters the lower fluidized bed ash cooling second fluidized bed from the withdrawal pipe 4. The gas for cooling the fluidized-bed ash is introduced into the lower part of the fluidized-bed container 1 from the gas inlet pipe 9 and the second fluid for cooling the fluidized-bed ash is supplied.
The fluidized bed ash is cooled through the second bed 11 of the bed and through the fluidized bed ash layer of the second fluidized bed for cooling the fluidized bed ash.
For this reason, the gas introduced into the fluidized bed container 1 from the gas introduction pipe 9 is warmed, and the first fluidized bed of the first fluidized bed is preheated .
It is supplied to the upper fluidized medium through the perforated plate 3. In the conventional fluidized bed apparatus , a cooling coil or the like is installed downstream of the fluidized bed vessel in order to cool the fluidized bed ash. wear but there is a problem such as occurs, the fluidized bed in the device a second alternative for cooling the fluidized bed ash downstream withdrawal tube of the first flow <br/> fluidized bed in the fluidized bed vessel 1
And the gas used for fluidizing the fluidized medium of the first fluidized bed is used as the gas for cooling the fluidized bed ash, and a separate cooling device is not particularly required for cooling the fluidized bed ash. The gas for cooling the fluidized-bed ash does not require a large amount of gas for cooling the fluidized-bed ash by utilizing the gas used for flowing the fluidized medium in the first fluidized bed. Equipment and operating costs are reduced, such as the ability to preheat the flowing gas. [0008] The fluidized bed apparatus according to the present invention is constructed as described above, does not require a special cooling device for cooling the fluidized bed ash, and has a gas for cooling the fluidized bed ash. If without requiring a large amount of cooling gas by sharing the gas used for the flow of the first <br/> fluidized in a fluidized bed medium, also flow in the first fluidized bed at the same time cooling of the fluidized bed ash Since the gas for fluidizing the medium is preheated, the cost required for operating the fluidized bed apparatus and the fluidized bed apparatus can be reduced.
【図面の簡単な説明】
【図１】図１は本発明の実施の一形態に係る流動床装置
の断面図である。
【図２】図２は従来の流動床装置の断面図である。
【符号の説明】
１ 流動床容器
３ 第１の目皿
４ 抜出し管
９ ガス投入管
１１ 第２の目皿BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a fluidized bed apparatus according to one embodiment of the present invention. FIG. 2 is a sectional view of a conventional fluidized bed apparatus . [Description of Signs] 1 Fluidized bed container 3 First perforated plate 4 Extraction tube 9 Gas inlet tube 11 Second perforated plate
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F23C 10/24 F27B 15/16 F23G 5/30 B01J 8/24 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) F23C 10/24 F27B 15/16 F23G 5/30 B01J 8/24
Claims (1)
動床を有し同第１の流動床で生成される流動床灰を抜出
し管を介して下方へ排出する流動床装置において、上記
流動床容器内の上記抜出し管の下流に設置され上記抜出
し管を介して排出される流動床灰を受ける第２の目皿
と、上記流動床容器に設けられ同第２の目皿の下方へガ
スを供給して同第２の目皿上の流動床灰を冷却するガス
投入管とを備え、同第２の目皿上に流動床灰冷却用の第
２の流動床を形成し、上記ガス投入管から供給され上記
第２の流動床を通過したガスを上記第１の目皿を通して
上記第１の流動床の流動に用いるように構成してなるこ
とを特徴とする流動床装置。(57) Patent Claims 1. A flow generated by the first perforated plate has a first flow <br/> fluidized bed on the same first fluidized bed in the fluidized bed vessel In a fluidized bed apparatus for discharging bed ash downward through a discharge pipe, a second tray installed downstream of the discharge pipe in the fluidized bed container and receiving the fluidized bed ash discharged through the discharge pipe And a gas inlet pipe provided in the fluidized-bed container for supplying gas below the second dish to cool fluidized-bed ash on the second dish. On top of the fluidized bed ash for cooling
2 to form the fluidized bed,
The gas that has passed through the second fluidized bed is passed through the first pan.
A fluidized bed apparatus configured to be used for the fluidization of the first fluidized bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28817896A JP3402962B2 (en) | 1996-10-30 | 1996-10-30 | Fluidized bed equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28817896A JP3402962B2 (en) | 1996-10-30 | 1996-10-30 | Fluidized bed equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10132213A JPH10132213A (en) | 1998-05-22 |
| JP3402962B2 true JP3402962B2 (en) | 2003-05-06 |
Family
ID=17726829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28817896A Expired - Fee Related JP3402962B2 (en) | 1996-10-30 | 1996-10-30 | Fluidized bed equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3402962B2 (en) |
-
1996
- 1996-10-30 JP JP28817896A patent/JP3402962B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10132213A (en) | 1998-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20030121 |
|
| LAPS | Cancellation because of no payment of annual fees |