JPS6320027A - Feeding method for fine powder - Google Patents
Feeding method for fine powderInfo
- Publication number
- JPS6320027A JPS6320027A JP16237186A JP16237186A JPS6320027A JP S6320027 A JPS6320027 A JP S6320027A JP 16237186 A JP16237186 A JP 16237186A JP 16237186 A JP16237186 A JP 16237186A JP S6320027 A JPS6320027 A JP S6320027A
- Authority
- JP
- Japan
- Prior art keywords
- fine powder
- powder
- storage drum
- fluid
- fed
- 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.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims description 9
- 239000012530 fluid Substances 0.000 abstract description 21
- 239000000443 aerosol Substances 0.000 abstract description 8
- 230000010349 pulsation Effects 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation 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
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Air Transport Of Granular Materials (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、微粉体を複数個のノズμに定量的に供給する
微粉体供給方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fine powder supply method for quantitatively supplying fine powder to a plurality of nozzles μ.
従来の技術
たとえば、燃焼炉において乾式炉内脱硫を行なう場合、
微粉状の脱硫剤を、供給量の脈動を生じることなく、か
つ炉壁に設けた複数個の吸込みノズルに、かたよりなく
定量的に供給することが必要である。そのため従来は定
量供給機で切シ出した脱硫剤の微粉体を、２分割を何段
にも繰返して複数個のノア゛ルに分配する方法が採用さ
れていた。Conventional technology For example, when performing dry furnace desulfurization in a combustion furnace,
It is necessary to uniformly and quantitatively supply the fine powder desulfurization agent to the plurality of suction nozzles provided on the furnace wall without causing any pulsation in the supply amount. Therefore, conventionally, a method has been adopted in which the fine powder of the desulfurizing agent cut out by a quantitative feeder is divided into two parts many times and distributed to a plurality of nozzles.
発明が解決しようとする問題点
しかしながら、上記の定量供給機から切シ出した微粉体
を、２分割を繰返して複数個のノズルに分配するだけの
方法では、脈動を微少範囲に抑えること、および容量等
の異々る多数のノズμにかたよシなく定量的に分配する
ことは、いずれも困難である。Problems to be Solved by the Invention However, with the method of simply dividing the fine powder cut out from the quantitative feeder into two and distributing it to a plurality of nozzles, it is difficult to suppress the pulsation to a minute range, and It is difficult to distribute uniformly and quantitatively to a large number of nozzles μ having different capacities.
本発明は、微粉体を複数個のノス゛〜に供給する際の、
上記のごとき問題点を解決して、定量供給機により生じ
る供給量の微少な脈動を吸収し、かつ容量の異なる多数
のノズルへ定量的に供給しうる微粉体供給方法を提供し
ようとするものである。The present invention provides a method for supplying fine powder to a plurality of nozzles.
The purpose of this project is to solve the above-mentioned problems and provide a method for supplying fine powder that can absorb minute pulsations in the supply amount caused by a quantitative feeder and can quantitatively supply it to a large number of nozzles with different capacities. be.
問題点を解決するだめの手段
上記問題点を解決するため、本発明の微粉体供給方法は
、加圧下に微粉体を定量供給機から貯留ドラムに供給し
、その微粉体を循環ブロワにより前記貯留ドラムと循環
管路間を粉流体状で循環させるとともに、貯留ドラム側
壁に設けた複数個の排出口から前記粉流体を複数個のエ
ゼクタノズルに供給することを特徴とするものである。Means for Solving the Problems In order to solve the above-mentioned problems, the fine powder supply method of the present invention supplies fine powder under pressure from a constant feeder to a storage drum, and the fine powder is transferred to the storage drum by a circulating blower. This system is characterized in that a liquid powder is circulated between the drum and the circulation pipe, and the liquid powder is supplied to a plurality of ejector nozzles from a plurality of discharge ports provided on the side wall of the storage drum.
作用
本発明において、加圧下に定量供給機で供給さ九る微粉
体を、−旦貯留ドラムに貯留し、しかも循環ブロワによ
り循環管路との間で粉流体状で循環し、かつ貯留ドラム
内の状態をエアロゾル化しておくことにより、定量供給
機で発生する供給量の脈動を吸収して、流れを均一化し
、かつ粉流体中の微粉体の濃度を一定に保つことができ
、貯留ドラムの側壁に設けた複数の排出口の取付は位置
の差あるいは各ノズルへの配管差等による流量不均衡お
よびノ：０に／Ｌ／の容量等に応じて微粉体の供給量を
精密に制御することができる。Operation In the present invention, the fine powder supplied under pressure by a quantitative feeder is first stored in a storage drum, and furthermore, it is circulated in the form of powder between the circulation pipe and the circulation blower, and By converting the powder into an aerosol, it is possible to absorb the pulsations in the supply amount that occur in the metering feeder, make the flow uniform, and keep the concentration of fine powder in the powder fluid constant. The installation of multiple discharge ports on the side wall allows for precise control of the supply amount of fine powder according to the flow rate imbalance due to differences in position or piping to each nozzle, and the capacity of No:0/L/. be able to.
実施例
本発明の一実施例を図面に基づき説明する。第１図は本
発明で用いる装置の一例を示す概略構成図であシ、燃焼
炉で乾式脱硫を行なう際に、脱硫剤微粉体を燃焼炉内へ
定量的に吹き込む場合の装置の例である。図において、
（１）は貯留ドラムで、上部に循環する粉流体の出口（
２）、下部に前記循環する粉流体の入口（３）および側
壁の上部寄シの円周方向に粉流体を外部へ排出する排出
口（４）を複数個それぞれ配設し、前記出口（２）と入
口（３）間には循環ブロワ（５）を介して粉流体を循環
させる循環管路（６）を配管し、前記貯留タンク（１）
下部の入口（３）と循環ブロワ（５）間の循環管路（６
）中に混合エゼクタ（７）を介在させる。前記混合エゼ
クタ（７）の二次空気（吸引空気）側に、微粉体（Ｆ）
の定量供給機（８）からの微粉体移送管（９）を開口し
、循環ブロワ（５）で付勢された粉流体と、加圧条件下
（Ｐ）に定量供給機（８）から微粉体移送管（９）を通
して送られる微粉体（Ｆ）を混合するとともに、微粉体
（Ｆ）を分散させ均一なエアロゾル状態を保たせる。貯
留タンク（１）の側壁に配設した複数個の排出口（４）
には、それぞれ粉流体移送管ＱＧの一端側を接続し、他
端側を、粉流体を燃焼炉へ送入する、炉壁αηを貫通し
て炉内■へ開口した、微粉体送入用の複数個のノズ１ｖ
Ｑ３へ接続する。Embodiment An embodiment of the present invention will be explained based on the drawings. Figure 1 is a schematic configuration diagram showing an example of an apparatus used in the present invention, and is an example of an apparatus for quantitatively injecting desulfurizing agent fine powder into a combustion furnace when performing dry desulfurization in a combustion furnace. . In the figure,
(1) is the storage drum, and the outlet (
2), a plurality of inlets (3) for the circulating powder fluid are provided in the lower part and a plurality of discharge ports (4) for discharging the powder fluid to the outside in the circumferential direction of the upper part of the side wall; ) and the inlet (3) are provided with a circulation pipe (6) for circulating the powder via a circulation blower (5), and a circulation pipe (6) is installed between the storage tank (1)
Circulation line (6) between the lower inlet (3) and the circulation blower (5)
) is interposed with a mixing ejector (7). Fine powder (F) is placed on the secondary air (suction air) side of the mixing ejector (7).
The fine powder transfer pipe (9) from the metering feeder (8) is opened, and the powder fluid energized by the circulation blower (5) and the fine powder from the metering feeder (8) under pressure (P) are The fine powder (F) sent through the body transfer pipe (9) is mixed, and the fine powder (F) is dispersed to maintain a uniform aerosol state. Multiple discharge ports (4) arranged on the side wall of the storage tank (1)
One end side of the powder fluid transfer pipe QG is connected to each, and the other end is connected to a powder fluid transfer pipe QG for feeding the powder fluid to the combustion furnace, which penetrates the furnace wall αη and opens into the furnace interior ■. multiple nozzles 1v
Connect to Q3.
上記のごとく配備した装置において、微粉体（Ｆ）をノ
ス“／ｌ／ａ３へ供給して噴射させるため、所定圧力の
加圧条件下（Ｐｌに定量供給機（８）で定量供給される
微粉体（Ｆ）を、微粉体移送管（９）を経て混合エゼク
タ（７）内へ移送し、循環ブロワ（５）からの気流と混
合分散して、粉流体として貯留ドラム（１）内へ送入し
、均一なエアロゾル状態を保ちつつ循環管路（６）を経
て循環させる。このとき循環比（循環量／排出量）は排
出口（４）からの排出が不安。定になら々い程度に保つ
必要があり、少なくとも１以上が望ましい。In the apparatus installed as described above, in order to supply the fine powder (F) to No./l/a3 and inject it, the fine powder (F) is supplied under a predetermined pressure (the fine powder is supplied quantitatively to Pl by the quantitative feeder (8)). The powder (F) is transferred into the mixing ejector (7) through the fine powder transfer pipe (9), mixed and dispersed with the airflow from the circulation blower (5), and sent into the storage drum (1) as a powder fluid. The aerosol is circulated through the circulation pipe (6) while maintaining a uniform aerosol state. At this time, the circulation ratio (circulation amount/emission amount) is unstable as the discharge from the outlet (4) is not stable. It is necessary to maintain a value of at least 1 or more.
またこのとき粉流体中の微粉体濃度を調整する。Also, at this time, the concentration of fine powder in the powder fluid is adjusted.
貯留ドラム（１）内の粉流体は、複数個の排出口（４）
から粉流体移送管αＯを経て、ノヌ°ル（至）により炉
内＠へ注入する。ここで、ノズ／ｖＱ３へ供給される粉
流体が、一定濃度の均一なエアロゾル状態であるので、
名ノズ／Ｌ’（Ｌｌにおける貯留ドラム（１）からの粉
流体移送管αＱの配管差等による流量不均衡と容量に応
じて、微粉体の供給量を容易に、かつ精密に制御するこ
とができる。The liquid powder in the storage drum (1) is discharged through a plurality of discharge ports (4).
From there, it is injected into the furnace via a non-null through the powder transfer pipe αO. Here, since the powder fluid supplied to the nozzle/vQ3 is in a uniform aerosol state with a constant concentration,
It is possible to easily and precisely control the supply amount of fine powder according to the flow rate imbalance and capacity due to piping differences in the powder transfer pipe αQ from the storage drum (1) in the famous nozzle/L' (Ll). can.
なお循環ブロワ（５）を経て循環される粉流体と、定量
供給機（８）から供給される粉流体とを混合して均一な
エアロゾルを作る方法としては、混合エゼクタ（７）に
代えてオリフィス、ベンチュリ等を用いてもよい。Note that as a method of mixing the powder fluid circulated through the circulation blower (5) and the powder fluid supplied from the quantitative feeder (8) to create a uniform aerosol, an orifice may be used instead of the mixing ejector (7). , Venturi, etc. may also be used.
発明の効果
本発明によれば、加圧下に定量供給機で供給された微粉
体を、粉流体として循環しつつ貯留ドラム内にエアロゾ
ル化して一定濃度で貯梢して、定量供゛給機で発生する
供給量の脈動を吸収し、かつ粉流体移送管ＱＯでの脈動
の発生を減少させて、流量が不均一で容量の異なる複数
のノズルに、それぞれに対応した量の前記粉流体を精密
かつコンスタントに供給することができ、所定の装置内
へ噴射することができる。Effects of the Invention According to the present invention, the fine powder supplied by the metering feeder under pressure is circulated as a powder fluid, aerosolized in the storage drum, stored at a constant concentration, and then fed by the metering feeder. By absorbing the pulsations in the supply amount that occur and reducing the occurrence of pulsations in the powder fluid transfer pipe QO, the powder fluid is precisely delivered in the corresponding amount to multiple nozzles with uneven flow rates and different capacities. Moreover, it can be constantly supplied and can be injected into a predetermined device.
第１図は本発明を適用する装置の一例を示す概略構成図
である。FIG. 1 is a schematic configuration diagram showing an example of an apparatus to which the present invention is applied.
Claims (1)
し、その微粉体を循環ブロワにより前記貯留ドラムと循
環管路間を粉流体状で循環させるとともに、貯留ドラム
側壁に設けた複数個の排出口から前記粉粒体を複数個の
ノズルに供給することを特徴とする微粉体供給方法。1. The fine powder is supplied under pressure from the quantitative feeder to the storage drum, and the fine powder is circulated in powder form between the storage drum and the circulation pipe by a circulation blower. A method for supplying fine powder, comprising supplying the powder to a plurality of nozzles from an outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16237186A JPH0620530B2 (en) | 1986-07-09 | 1986-07-09 | Fine powder supply method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16237186A JPH0620530B2 (en) | 1986-07-09 | 1986-07-09 | Fine powder supply method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6320027A true JPS6320027A (en) | 1988-01-27 |
| JPH0620530B2 JPH0620530B2 (en) | 1994-03-23 |
Family
ID=15753301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16237186A Expired - Fee Related JPH0620530B2 (en) | 1986-07-09 | 1986-07-09 | Fine powder supply method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620530B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015101770A (en) * | 2013-11-26 | 2015-06-04 | 株式会社カネカ | Vapor deposition apparatus, film deposition method, and production method for organic el device |
| JP2017518941A (en) * | 2014-06-13 | 2017-07-13 | ポール ヴルス エス．エイ．Ｐａｕｌ Ｗｕｒｔｈ Ｓ．Ａ． | Method and apparatus for supplying bulk material through an air line |
-
1986
- 1986-07-09 JP JP16237186A patent/JPH0620530B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015101770A (en) * | 2013-11-26 | 2015-06-04 | 株式会社カネカ | Vapor deposition apparatus, film deposition method, and production method for organic el device |
| JP2017518941A (en) * | 2014-06-13 | 2017-07-13 | ポール ヴルス エス．エイ．Ｐａｕｌ Ｗｕｒｔｈ Ｓ．Ａ． | Method and apparatus for supplying bulk material through an air line |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0620530B2 (en) | 1994-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |