JPS5941770B2 - Fluidized bed equipment - Google Patents
Fluidized bed equipmentInfo
- Publication number
- JPS5941770B2 JPS5941770B2 JP684679A JP684679A JPS5941770B2 JP S5941770 B2 JPS5941770 B2 JP S5941770B2 JP 684679 A JP684679 A JP 684679A JP 684679 A JP684679 A JP 684679A JP S5941770 B2 JPS5941770 B2 JP S5941770B2
- Authority
- JP
- Japan
- Prior art keywords
- fluidized bed
- gas distribution
- distribution plate
- fluid
- fluidized
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 37
- 238000007664 blowing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 description 32
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/44—Fluidisation grids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Description
【発明の詳細な説明】
従来、流動層燃焼ボイラ、流動層反応装置、流動層加熱
装置、流動層乾燥装置等で用いられる流動層装置は、第
１図および第２図に示されるように、底板１、側壁２、
気体分配板３、流動材供給管４及び流動材供給ノズル５
で構成されている。DETAILED DESCRIPTION OF THE INVENTION Conventionally, fluidized bed devices used in fluidized bed combustion boilers, fluidized bed reactors, fluidized bed heating devices, fluidized bed drying devices, etc., as shown in FIGS. 1 and 2, Bottom plate 1, side wall 2,
Gas distribution plate 3, fluid supply pipe 4, and fluid supply nozzle 5
It consists of
そして、気体分配板３は水平に設けられ、多数の給気孔
６が同気体分配板３に垂直に設けられており、又同気体
分配板３の下方には風箱８が形成されている。The gas distribution plate 3 is provided horizontally, a large number of air supply holes 6 are provided perpendicularly to the gas distribution plate 3, and a wind box 8 is formed below the gas distribution plate 3.
又流動材供給ノズル５には水平に複数の孔７が設けられ
ている。Further, the fluid material supply nozzle 5 is provided with a plurality of holes 7 horizontally.
このような流動層装置において、気体分配板３の給気孔
６から吹き上げられる気体で流動層を作り、流動材と気
体の反応を行なわせたり、気体と流動材の熱交換を行な
わせたりする。In such a fluidized bed apparatus, a fluidized bed is created using gas blown up from the air supply holes 6 of the gas distribution plate 3, and a reaction between the fluidized material and the gas is performed, and a heat exchange between the gas and the fluidized material is performed.
すなわち風箱８に送られた空気は気体分配板３の給気孔
６を通して、吹き込まれ、気体分配板３上に供給されて
いる流動材９を流動化し、流動層を形成する。That is, the air sent to the wind box 8 is blown through the air supply hole 6 of the gas distribution plate 3, fluidizes the fluidized material 9 supplied onto the gas distribution plate 3, and forms a fluidized bed.
流動材供給管４を経て送られる流動材は流動材吹込みノ
ズル５の孔７を通して、流動層内に矢印方向に吹き込ま
れる。The fluid sent through the fluid supply pipe 4 passes through the hole 7 of the fluid injection nozzle 5 and is blown into the fluidized bed in the direction of the arrow.
このように、流動層においては、鉛直方向には攪拌がは
げしく、流動材が均等に混合されるが、水平方向では混
合がおそく、拡散作用のみによって混合される。In this manner, in the fluidized bed, stirring is vigorous in the vertical direction and the fluidized material is evenly mixed, but mixing is slow in the horizontal direction and is mixed only by diffusion.
従って、流動材供給ノズル５が流動材層の広さに比して
少ない場合は、図に示すように新しく投入された流動材
の到達が早い領域Ａと遅い領域Ｂが出来る。Therefore, if the number of fluid material supply nozzles 5 is small compared to the width of the fluid layer, there will be a region A where the newly introduced fluid reaches quickly and a region B where the newly introduced fluid reaches slowly, as shown in the figure.
気体と流動材の反応が非常に早い場合、あるいは、流動
材が熱等で変質する場合は、領域Ａでは粒子が多すぎ、
領域Ｂでは気体が過多となりＡとＢの両頭域でともに所
期の効果を期待できなくなる。If the reaction between the gas and the fluidized material is very fast, or if the fluidized material is altered by heat etc., there may be too many particles in region A.
In region B, there is too much gas, and the desired effect cannot be expected in both regions A and B.
一方、流動材到達の遅い領域Ｂをなくすためには、流動
材吹込ノズル５を密に極めて多数設けることが必要とな
り構造上又は運転保守の上から不具合となることが多い
。On the other hand, in order to eliminate the region B where the fluid material reaches slowly, it is necessary to provide a very large number of fluid material injection nozzles 5 closely packed, which often causes problems in terms of structure or operation and maintenance.
本発明は、従来の流動層装置における上記の欠点をなく
し、流動材吹込みノズルの数を増すことなく、流動材を
速かに且つ均一に流動層全域に分配するために、流動層
底部にほぼ水平な気体分配板と、同気体分配板の上方に
複数個の流動材供給ノズルを備えたものにおいて、上記
気体分配板上面は、上記各流動材供給ノズル位置を頂と
する複数個の丘状面を備え、かつ上記気体分配板に設け
られた給気口の少くとも一部の吹出し方向が、上記丘状
面を吹下す方向を指向していることを特徴とする流動層
装置を提案するものである。The present invention eliminates the above-mentioned drawbacks in conventional fluidized bed devices, and provides a fluidized bed at the bottom of the fluidized bed in order to quickly and uniformly distribute the fluidized material over the entire fluidized bed area without increasing the number of fluidized material injection nozzles. In a device comprising a substantially horizontal gas distribution plate and a plurality of fluid supply nozzles above the gas distribution plate, the upper surface of the gas distribution plate has a plurality of hills having peaks at the positions of the fluid supply nozzles. The present invention proposes a fluidized bed device, characterized in that the gas distribution plate has a shaped surface, and at least a part of the air supply ports provided in the gas distribution plate is directed in a direction in which the air is blown down the hill-shaped surface. It is something to do.
このように、本発明では気体分配板上面を、流動材供給
ノズルを頂とする丘状面とし、気体分配板に設けられた
給気孔の少くとも一部の吹出し方向が丘状面を吹下す方
向に指向するようにしたので、流動材が丘状面を滑りお
り、流動材供給ノズルから遠いところへ運ばれ速く広く
分散される。In this way, in the present invention, the upper surface of the gas distribution plate is formed into a hill-shaped surface with the fluidized material supply nozzle at the top, and at least a part of the air supply holes provided in the gas distribution plate blows down the hill-shaped surface. Since the flow material is oriented in the direction, the fluid material slides down the hill-like surface, is carried far from the fluid material supply nozzle, and is quickly and widely dispersed.
従って流動材と空気との効果的な反応や熱交換が可能と
なる。Therefore, effective reaction and heat exchange between the fluid material and air becomes possible.
次に本発明の一実施例を第３図および第４図により説明
する。Next, one embodiment of the present invention will be described with reference to FIGS. 3 and 4.
気体分配板は各流動材供給ノズル１５を中心に同ノズル
から離れるにつれて下降する傾斜板１３ａと互に隣接す
る傾斜板１３ａの間の水平板１３ｂより成る。The gas distribution plate consists of an inclined plate 13a which is centered around each fluid supply nozzle 15 and descends as it moves away from the nozzle, and a horizontal plate 13b between adjacent inclined plates 13a.
すなわち気体分配板は流動層底部に全体としてほぼ水平
に配されるが、その上面には複数の流動材供給ノズル１
５位置を頂点とする丘状面が形成されている。In other words, the gas distribution plate is arranged generally horizontally at the bottom of the fluidized bed, but a plurality of fluid material supply nozzles 1 are arranged on the top surface of the gas distribution plate.
A hill-like surface is formed with the apex at position 5.
流動材供給ノズル１５の孔１７は、吹込まれた流動材の
流が傾斜板１３ａに略平行になるように指向されている
。The hole 17 of the fluid supply nozzle 15 is oriented so that the flow of the injected fluid is substantially parallel to the inclined plate 13a.
水平板１３ｂには垂直に給気孔１６ｂが設けられている
。Air supply holes 16b are vertically provided in the horizontal plate 13b.
第５図は流動材供給ノズル１５近傍の平面図、第６図は
第５図のＭ−Ｗ断面図である。FIG. 5 is a plan view of the vicinity of the fluid material supply nozzle 15, and FIG. 6 is a sectional view taken along line M-W in FIG.
Ｅの領域には傾斜板１３ａに垂直に給気孔１６ａが多数
設けられている。In the region E, a large number of air supply holes 16a are provided perpendicularly to the inclined plate 13a.
Ｅの領域の広がり角は約２０°でその領域の中央には流
動材供給ノズル１５の孔１７が指向されている。The spread angle of the region E is about 20°, and the hole 17 of the fluid supply nozzle 15 is oriented in the center of the region.
Ｆの領域には給気ノズル２０が多数設けられるが、その
吹出し方向は矢印２１で示すように傾斜板１３ａに平行
で且つＥの領域から離れるようにしである。A large number of air supply nozzles 20 are provided in the region F, and the blowing direction thereof is parallel to the inclined plate 13a and away from the region E, as shown by an arrow 21.
流動材供給ノズル１５の孔１７より供給された流動材は
、Ｅの領域の傾斜板１３ａに設けた給気孔１６ａ、より
供給される気体に乗って傾斜板をすべりおちる。The fluid supplied from the hole 17 of the fluid supply nozzle 15 slides down the inclined plate riding on the gas supplied from the air supply hole 16a provided in the inclined plate 13a in the region E.
一方、Ｆの領域に設けられた給気ノズル２０の吹出し方
向がＦの部分の矢印のようにＥの領域から離れる方へ向
けられていることによりＥの領域をすべり落ちる流動材
がＥの領域から離れる方向−・輸送される。On the other hand, since the blowing direction of the air supply nozzle 20 provided in the area F is directed away from the area E as shown by the arrow in the part F, the fluid material that slides down the area E is in the area E. Direction away from - transported.
このようにして、本発明の流動層装置では流動材供給ノ
ズル１５から吹出される流動材が次の２つの作用により
速く、広く分散される。In this manner, in the fluidized bed apparatus of the present invention, the fluid material blown out from the fluid material supply nozzle 15 is quickly and widely dispersed due to the following two effects.
１、流動材が傾斜板１３ａを滑りおり、流動材吹出しノ
ズル１７から遠いところへ運ばれる。1. The fluid material slides down the inclined plate 13a and is carried far from the fluid material blowing nozzle 17.
２、気体吹込みノズル２０から吹出される気体により、
流動材の密なＥの領域から、流動材が粗なＦの領域へ流
動材が運ばれる。2. Due to the gas blown out from the gas blowing nozzle 20,
The fluid material is transported from the region E where the fluid material is dense to the region F where the fluid material is coarse.
この結果、流動材吹き込みノズルを増すことなく流動層
全面に流動材を速かに分散できるので流動材と空気との
効果的な反応や熱交換が可能となる。As a result, the fluidized material can be quickly dispersed over the entire surface of the fluidized bed without increasing the number of fluidized material injection nozzles, thereby enabling effective reaction and heat exchange between the fluidized material and air.
第７図は流動材供給管２４が気体分散板１３ａ。In FIG. 7, the fluid supply pipe 24 is the gas distribution plate 13a.
１３ｂの上方に設けられている実施例を示す。13b is shown.
第８図は第６図の気体吹込ノズル２０の代りに傾斜板１
３ａの一部を折り曲げ、開口部３０を設ける実施例であ
る。FIG. 8 shows an inclined plate 1 instead of the gas blowing nozzle 20 in FIG.
This is an embodiment in which a part of 3a is bent and an opening 30 is provided.
気体吹出し方向は第５図、第６図の給気ノズル２０と同
じ設定である。The gas blowing direction is the same as that of the air supply nozzle 20 shown in FIGS. 5 and 6.
以上、本発明を実施例によシ説明したが、本発明は上記
実施例に限定されるものではなく、本発明の精神を逸脱
しない範囲で種々の実施態様とすることができる。Although the present invention has been described above using examples, the present invention is not limited to the above-mentioned examples, and can be implemented in various ways without departing from the spirit of the invention.
たとえば、第４図において傾斜板１３ａの形成する丘状
面は不等辺六角錐が示されているが、この丘状面は円錐
、四角錐等、場合に応じて種々に変形実施することがで
きる。For example, in FIG. 4, the hill-shaped surface formed by the inclined plate 13a is shown as a scalene hexagonal pyramid, but this hill-shaped surface can be modified into a cone, a square pyramid, etc. depending on the situation. .
第１図は従来の流動層装置の側断面図、第２図は第１図
のＩＩ−Ｍ矢視図、第３図は本発明の一実施例の側断面
図、第４図は第３図のＩＶ −ＩＶ矢視図、第５図は流
動材供給ノズル近傍の拡大平面図、第６図は第５図のＶ
ｌ−Ｖｌ断面図、第７図は本発明の他の実施例を示す側
断面図、第８図は給気ノズルの他の実施例を示す断面図
である。
１６０．床板、２００．側壁、３０．・気体分配板、１
３ａ００．傾斜板、１３ｂ−０，水平板、４，１４，２
４・・・流動材供給管、５，１５．２５・・・流動材供
給ノズル、６．１６ａ、１６ｂ−−−給気孔、７．１７
，２７．、。
孔、８１１．風箱、２０・・・気体吹込ノズル。FIG. 1 is a side sectional view of a conventional fluidized bed apparatus, FIG. 2 is a view taken along arrow II-M in FIG. 1, FIG. 3 is a side sectional view of an embodiment of the present invention, and FIG. 5 is an enlarged plan view of the vicinity of the fluid supply nozzle, and FIG.
FIG. 7 is a side sectional view showing another embodiment of the present invention, and FIG. 8 is a sectional view showing another embodiment of the air supply nozzle. 160. Floorboard, 200. side wall, 30.・Gas distribution plate, 1
3a00. Inclined plate, 13b-0, horizontal plate, 4, 14, 2
4...Fluidized material supply pipe, 5, 15.25...Fluidized material supply nozzle, 6.16a, 16b---Air supply hole, 7.17
, 27. ,. Hole, 811. Wind box, 20... gas blowing nozzle.
Claims (1)
板の上方に複数個の流動材供給ノズルを備えたものにお
いて、上記気体分配板上面は、上記各流動材供給ノズル
位置を頂とする複数個の丘状面を備え、かつ上記気体分
配板に設けられた給気口の少くとも一部の吹出し方向が
、上記丘状面を吹下す方向を指向していることを特徴と
する流動層装置。1. In a device comprising a substantially horizontal gas distribution plate at the bottom of the fluidized bed and a plurality of fluid supply nozzles above the gas distribution plate, the top surface of the gas distribution plate is located at the top of each fluid supply nozzle position. The gas distribution plate has a plurality of hill-shaped surfaces, and at least a part of the air supply ports provided in the gas distribution plate is oriented in the direction of blowing down the hill-shaped surfaces. Fluidized bed equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP684679A JPS5941770B2 (en) | 1979-01-24 | 1979-01-24 | Fluidized bed equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP684679A JPS5941770B2 (en) | 1979-01-24 | 1979-01-24 | Fluidized bed equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5599334A JPS5599334A (en) | 1980-07-29 |
| JPS5941770B2 true JPS5941770B2 (en) | 1984-10-09 |
Family
ID=11649597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP684679A Expired JPS5941770B2 (en) | 1979-01-24 | 1979-01-24 | Fluidized bed equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5941770B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2519877B1 (en) * | 1982-01-20 | 1986-10-31 | Charbonnages De France | FLUIDIZING GRID AND COMBUSTION FIRE WITH LOWER AIR BLOW GRID AND METHOD FOR TREATING PARTICULATE MATERIAL IN A FLUIDIZING AND / OR DRIVING CHAMBER |
| FR2543848B1 (en) * | 1983-04-07 | 1985-11-29 | Charbonnages De France | FLUIDIZATION APPARATUS WITH INTERNAL HEAT EXCHANGER |
| KR101134001B1 (en) | 2008-12-31 | 2012-04-05 | 제일모직주식회사 | Tuyere-type Distributor for Fluidized Bed Reactor for Minimizing Dead Zone |
| CN103090372A (en) * | 2011-10-28 | 2013-05-08 | 张璟 | Special boiling burner for forging |
-
1979
- 1979-01-24 JP JP684679A patent/JPS5941770B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5599334A (en) | 1980-07-29 |
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