JPS60117081A - Fluidized-bed combustion furnace - Google Patents
Fluidized-bed combustion furnaceInfo
- Publication number
- JPS60117081A JPS60117081A JP22321283A JP22321283A JPS60117081A JP S60117081 A JPS60117081 A JP S60117081A JP 22321283 A JP22321283 A JP 22321283A JP 22321283 A JP22321283 A JP 22321283A JP S60117081 A JPS60117081 A JP S60117081A
- Authority
- JP
- Japan
- Prior art keywords
- fluidized bed
- fluidized
- fuel
- air
- combustion furnace
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明に１、流動床の内部でむらなく燃焼を行わせ、１
・ｉｌ １１．５に・・−す根っ′」・りを起すことの
ない流動未燃（：ｌ’＋’、炉に１９．、ｌするもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention has the following features: 1. Evenly combustion is performed inside a fluidized bed; 1.
・il 11.5...-su'''・liquid unburnt (: l'+', 19., l to the furnace) without causing ri.
（ｊ（＝来、２４０図に示すような流動床で、保温性を
良くシ／（−ν゛置に」、って、金属棒の熱処理が行わ
れているが、この時、流動材の逆流を防ぐ目的でセラミ
ックスが用いられていた。しかし、第１図の平板型（又
Ｃ」、円盤型）セラミックスは、大型の流動床でバーナ
として用いる場合には、強度上太きな問題があり、実用
化が困難である。また、従来の流動床ボイラ用バーナ等
では、流動粒子がバーナの内部へ飛び込みを起こし、バ
ーナの根づ捷りを起こす恐れがある。(J(=Since then, metal rods have been heat-treated in a fluidized bed as shown in Figure 240 to ensure good heat retention.) Ceramics were used for the purpose of preventing backflow. However, the flat plate (also known as "C", disk-shaped) ceramics shown in Figure 1 had serious problems in terms of strength when used as a burner in a large fluidized bed. In addition, in conventional burners for fluidized bed boilers, fluidized particles may fly into the burner and cause the burner to become rooted.
第１図において、符号０１は熱処理が行われる金属棒で
、流動床０５内に挿入される。燃料、空気混合ガスが配
管０２を通じてチャンバー０３に導かれ、ポーラスセラ
ミック板０４を通過して高温の流動床０５内で燃焼し、
燃焼ガス（図中実線矢印）はバブル０６となって流動床
０５の上方へ排出される。In FIG. 1, reference numeral 01 denotes a metal rod to be subjected to heat treatment, which is inserted into a fluidized bed 05. A fuel/air mixture gas is led to a chamber 03 through a pipe 02, passes through a porous ceramic plate 04, and burns in a high-temperature fluidized bed 05.
The combustion gas (solid arrow in the figure) becomes bubbles 06 and is discharged above the fluidized bed 05.
こノ時、ポーラスセラミック板０４を混合ガスは通過す
るが、流動材がチャンバー０３内に落下する４１はない
。また、流動材にはアルミナ粉等を用いる。０７は外壁
で、ポーラスセラミック板０４を固定するだめに間材０
８で分割している。At this time, the mixed gas passes through the porous ceramic plate 04, but no fluid material falls into the chamber 03 (41). In addition, alumina powder or the like is used as the fluid material. 07 is the outer wall, and there is a spacer material 0 for fixing the porous ceramic plate 04.
It is divided by 8.
本発明は、大型の流動床を要するもの（例えば流動床ボ
イラなと）において、流動床の内部でむらなく燃焼を行
わせ、同時にバーナ根づまりや強度−トの不安を無くす
ことを目的とし、セラミックスのチューブを蛇行状又は
渦巻状に接続し、これを流動床内に固定し、燃料系のチ
ューブと空気系のチューブをそれぞれ設け、これらを］
−下に配置することを新規な点とするものである。The purpose of the present invention is to perform combustion evenly inside the fluidized bed in a device that requires a large fluidized bed (for example, a fluidized bed boiler), and at the same time eliminate concerns about burner clogging and strength. Ceramic tubes are connected in a serpentine or spiral shape, fixed in a fluidized bed, and a fuel system tube and an air system tube are provided respectively.
- The new point is that it is placed at the bottom.
以下、本発明の好適な実施例につき第２図（ａ）、（ｂ
）および第３図を参照して説明する。Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. 2(a) and 2(b).
) and FIG.
第２図（ａ）、（１））において、流動床床板１より出
た配％２を通じて、燃料又は空気（図中、矢印で示す）
が蛇行１．たポーラスセラミックスのチューブ、３内に
導か１１１、これより流動床４内に噴き出す。In Fig. 2 (a), (1)), fuel or air (indicated by arrows in the figure)
Meandering 1. The porous ceramic tube 111 is introduced into the porous ceramic tube 3, from which it is spouted into the fluidized bed 4.
セラミックチューブ３は、流動床床板１に取り伺けられ
た支持具５によって固定される。ポーラスセラミックチ
ューブ３には流動粒子がチューブ内に入って来ない程度
の小穴がおいている。The ceramic tube 3 is fixed by a support 5 which is inserted into the fluidized bed plate 1. The porous ceramic tube 3 has small holes to prevent fluid particles from entering the tube.
第３図に示すように、燃料側セラミックチューブ；）；
ｌ（又は空気側セラミックチューブ３ｂ ）と、空気側
セラミックチューブ３ｂ （又は燃料側セラミックチュ
ーブ３ａ）は流動床４内の上下に交互に配置しである。As shown in Figure 3, the fuel side ceramic tube ;);
1 (or the air side ceramic tube 3b) and the air side ceramic tube 3b (or the fuel side ceramic tube 3a) are arranged alternately above and below in the fluidized bed 4.
燃料および空気がそれぞれのポーラスセラミックチュー
ブより噴き出し、それぞれが流動床内でバブルを形成す
る。この燃料のバブルと空気のノくプルが混合して一つ
のバブルを形成し、そこで燃焼が起こる。Fuel and air eject from their respective porous ceramic tubes, each forming a bubble within the fluidized bed. These fuel bubbles and air nodules mix to form a single bubble, where combustion occurs.
本発明は以上の構成、作用−により次のごとき効果を有
する。The present invention has the following effects due to the above configuration and operation.
（ａ） 流動床燃焼炉の形状、断面積の大小に拘らず、
床内にむらなく燃焼ガスを送ることが可能になる。(a) Regardless of the shape or cross-sectional area of the fluidized bed combustion furnace,
It becomes possible to send combustion gas evenly within the floor.
（ｂ） 支持具を設けたことによってチューブの強度を
カバーできる。(b) The strength of the tube can be covered by providing a support.
（Ｃ） 流動粒子のバーナへの飛ひ込みによる・く−す
根づ捷りの問題は、ポーラスセラミツクツく−ナチュー
ブにあいた粒子径より小径の多数の穴によって防ぐこと
が出来る。(C) The problem of debris rooting caused by fluidized particles flying into the burner can be prevented by providing a large number of holes smaller in diameter than the particle diameter in the porous ceramic tube.
（ｄｌ バーナチューブを上下に装置することによって
、燃料のバブルと空気のバブルの混合性を良くすること
ができる。特に一般には流量の少い燃料を下段のチュー
ブより噴き出す方が、混合はより良い傾向にある。(dl By arranging the burner tubes one above the other, it is possible to improve the mixing of fuel bubbles and air bubbles. In general, mixing is better if fuel with a small flow rate is ejected from the lower tube.) There is a tendency.
（（・） ポーラスセラミンクを用いるために、燃料お
、Ｌひ空気の噴出速度はかなり遅いものになると考えら
れるが、平板状のセラミック板に比較してブーユーブ状
の方が噴出面積が大きいため、燃オ・［および空気の流
量は確保できる。((・) Due to the use of porous ceramic plate, the ejection speed of fuel, L, and air is thought to be quite slow, but the ejection area of the bouyou-shaped plate is larger than that of a flat ceramic plate. , fuel, gas, and air flow rates can be secured.
（「）Ｊ−混合でなく、燃料用と空気用のバーナが別々
であるため、高温度雰囲気によるバーナ内での燃焼、逆
火による爆発などの心配は全くない。(') Since there is no J-mixture, and there are separate burners for fuel and air, there is no need to worry about combustion in the burner due to high temperature atmosphere or explosion due to backfire.
第１図ｉ１従来の！ｊ：ｅ動床燃焼炉の構成を示す縦断
面図、第２図以降は本発明に関し、第２図（ａ）は流動
未燃ｉａ’ｒ：炉の一部破断の平面図、第２１之１（ｂ
）は一部破断の・燃（３＋１＋、炉の側面図、第３図は
セラミックチューブの配置を／Ｊ＜す側面図である。
■・・３ｔＣ動床床板、２・・配管、３・・セラミック
チューブ、：３ａ・・燃料側セラミックチューブ゛、３
１．＋ｅ拳空気イ則セラミックチコーーブ、 ４・・流
動床。
第１図
第？図Figure 1 i1 Conventional! j: e A vertical cross-sectional view showing the configuration of a moving bed combustion furnace, Figure 2 and subsequent figures relate to the present invention, and Figure 2 (a) is a partially broken plan view of the fluidized unburned furnace. 1(b
) is a side view of the partially broken furnace (3+1+, Figure 3 is a side view of the arrangement of ceramic tubes. ■... 3tC moving bed plate, 2... piping, 3... Ceramic tube: 3a...Fuel side ceramic tube, 3
1. + e fist air i law ceramic chicobe, 4... fluidized bed. Figure 1 No.? figure
Claims (1)
燃オ・１側セラミツクチユーブと空気側セラミックチュ
ーブとを流動床内に上下に交互に配置１１、同士ラミッ
クチューブより燃料を噴出させて燃（３ｊ’ｉさせるよ
うに構成したことを特徴とする流動床燃焼炉。Ceramic tubes on the combustion side and the ceramic tubes on the air side, which are made of ceramic and have many small holes in minute diameter, are arranged vertically alternately in a fluidized bed (11). 1. A fluidized bed combustion furnace characterized in that it is configured to cause 'i'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22321283A JPS60117081A (en) | 1983-11-29 | 1983-11-29 | Fluidized-bed combustion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22321283A JPS60117081A (en) | 1983-11-29 | 1983-11-29 | Fluidized-bed combustion furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60117081A true JPS60117081A (en) | 1985-06-24 |
Family
ID=16794545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22321283A Pending JPS60117081A (en) | 1983-11-29 | 1983-11-29 | Fluidized-bed combustion furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60117081A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60243195A (en) * | 1984-04-27 | 1985-12-03 | Hitachi Ltd | Burner for gasifying coal |
| US11577420B2 (en) | 2018-01-23 | 2023-02-14 | Ranpak Corp. | Quick-change cutting blade assembly and method |
-
1983
- 1983-11-29 JP JP22321283A patent/JPS60117081A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60243195A (en) * | 1984-04-27 | 1985-12-03 | Hitachi Ltd | Burner for gasifying coal |
| JPH046237B2 (en) * | 1984-04-27 | 1992-02-05 | Hitachi Ltd | |
| US11577420B2 (en) | 2018-01-23 | 2023-02-14 | Ranpak Corp. | Quick-change cutting blade assembly and method |
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