JPH0611119Y2 - Nozzle for powder spray - Google Patents
Nozzle for powder sprayInfo
- Publication number
- JPH0611119Y2 JPH0611119Y2 JP1987187539U JP18753987U JPH0611119Y2 JP H0611119 Y2 JPH0611119 Y2 JP H0611119Y2 JP 1987187539 U JP1987187539 U JP 1987187539U JP 18753987 U JP18753987 U JP 18753987U JP H0611119 Y2 JPH0611119 Y2 JP H0611119Y2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- nozzle
- pipe
- duct
- slit
- 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 - Lifetime
Links
Landscapes
- Treating Waste Gases (AREA)
- Nozzles (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は粉体噴霧用ノズルに係り、特に粉体を流動する
ガス体中に均一に分散させることができる粉体噴霧用ノ
ズルに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a powder spray nozzle, and more particularly to a powder spray nozzle capable of uniformly dispersing powder in a flowing gas body. is there.
ガス中の成分と粉体を効果的に反応させるためには、接
触面積を大きくするために前記粉体を細かく粉砕し、こ
れをガス中にできるだけ均一に分散させることが必要で
ある。In order to effectively react the components in the gas with the powder, it is necessary to pulverize the powder in order to increase the contact area and disperse the powder in the gas as uniformly as possible.
従来、ダクト内を流れるガス体に粉体を均一に分散させ
る場合、ダクトの途中に固定羽根を有する分散器と粉体
噴霧用のノズルをこの順序で配置し、前記分散器の固定
羽根により、ダクト中のガス流を旋回させた後、この旋
回流内に前記噴霧用のノズルから粉体を供給して分散さ
せるものが知られている。Conventionally, when the powder is uniformly dispersed in the gas body flowing in the duct, a disperser having fixed blades and a nozzle for spraying powder are arranged in this order in the middle of the duct, and by the fixed blades of the disperser, It is known that a gas flow in a duct is swirled, and then powder is supplied and dispersed from the spray nozzle into the swirl flow.
しかしながら、上記従来技術では、ダクト内に粉体噴霧
用のノズルとは別に分散器を設置する必要があり、大径
のダクトの場合は分散器の製作および設置が困難であ
る。またガス体に旋回流を付与した場合、その条件によ
ってはガス体に吸引流が発生し、供給された粉体が前記
旋回流の中央に集まってしまい、かえって均一に分散さ
れないこともある。However, in the above-mentioned conventional technique, it is necessary to install a disperser in the duct in addition to the nozzle for spraying powder, and it is difficult to manufacture and install the disperser in the case of a large-diameter duct. In addition, when a swirl flow is applied to the gas body, a suction flow is generated in the gas body depending on the conditions, and the supplied powder is gathered in the center of the swirl flow and may not be uniformly dispersed.
本考案の目的は、上記従来技術の問題点をなくし、分散
器を用いることなく粉体を均一に分散できるうえ、前記
粉体による目詰まりを防止できる粉体噴霧用ノズルを提
供することにある。An object of the present invention is to eliminate the above-mentioned problems of the prior art, to provide a powder spray nozzle capable of uniformly dispersing powder without using a disperser and preventing clogging by the powder. .
上記目的を達成するため本考案は、ダクト内を流れるガ
ス流路に挿入されたパイプ状のノズルであって、軸方向
に少なくとも２本のスリット状の噴出孔を有することを
特徴とするものである。In order to achieve the above-mentioned object, the present invention is a pipe-shaped nozzle inserted in a gas flow path flowing in a duct, and has at least two slit-shaped ejection holes in the axial direction. is there.
例えば、一端を閉じたパイプの軸方向に沿ってスリット
状の噴出孔を複数個設けた粉体噴霧用ノズルをガスが流
れるダクトに設置し、該パイプの他端から搬送用媒体と
ともに粉体を導入することにより、前記粉体と搬送用媒
体はパイプ内を流動して閉端部に到り、前記複数のスリ
ット状の噴出孔から噴出され、ダクト内を流れるガス中
に均一に分散する。For example, a powder spray nozzle provided with a plurality of slit-shaped ejection holes along the axial direction of a pipe whose one end is closed is installed in a duct through which gas flows, and the powder is transferred from the other end of the pipe together with a carrier medium to the powder. When introduced, the powder and the carrier medium flow in the pipe to reach the closed end, are ejected from the plurality of slit-shaped ejection holes, and are uniformly dispersed in the gas flowing in the duct.
本考案に用いられるパイプの材質は特に限定されるもの
でなく、ダクト内のガス温度に耐えられるものであれば
よい。このパイプはフランジを介してダクトの側壁にね
じ等の手段により固着される。The material of the pipe used in the present invention is not particularly limited as long as it can withstand the gas temperature in the duct. This pipe is fixed to the side wall of the duct via a flange by means of screws or the like.
本考案において、前記スリット状の噴出孔の面積は可変
にすることができ、例えば前記噴出孔を有するパイプよ
りもわずかに径が大きい、前記パイプのスリット孔と同
形のスリット孔を有する開孔面積調整パイプを、前記噴
出孔を有するパイプの噴出孔部分に、同心状に、かつ円
周方向に摺動自在に設け、この開孔面積調整パイプを回
転させることにより、ノズルの開孔面積を変化させて粉
体の噴霧量を調節することもできる。In the present invention, the area of the slit-shaped ejection hole can be made variable, for example, the opening area having a slit hole of the same shape as the slit hole of the pipe, which is slightly larger in diameter than the pipe having the ejection hole. An adjustment pipe is provided concentrically and slidably in a circumferential direction at the ejection hole portion of the pipe having the ejection hole, and the opening area of the nozzle is changed by rotating the adjustment pipe. It is also possible to adjust the amount of powder sprayed.
次に、本考案を実施例によりさらに詳細に説明する。 Next, the present invention will be described in more detail by way of examples.
第１図は、本考案の一実施例である粉体噴霧用ノズルの
平面図、第２図はその側面図、第３図は、第１図のIII-
III線矢視方向断面図である。FIG. 1 is a plan view of a powder spraying nozzle which is an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is III- of FIG.
FIG. 3 is a sectional view taken along line III.
このノズルは、その閉端部２を有するパイプの軸方向に
並列に設けられた２本のスリット状の噴出孔３を有する
パイプ１と、該パイプ１の開口端４の近傍に設けられた
フランジ５とから構成されている。パイプ１の開口端４
から導入された粉体と搬送用媒体は、前記パイプ１を流
れ、スリット状の噴出孔３からダクト内に噴出される。This nozzle includes a pipe 1 having two slit-shaped ejection holes 3 arranged in parallel in the axial direction of a pipe having a closed end portion 2 thereof, and a flange provided in the vicinity of an open end 4 of the pipe 1. It is composed of 5 and. Open end 4 of pipe 1
The powder and the transfer medium introduced from the above flow through the pipe 1 and are ejected from the slit-shaped ejection holes 3 into the duct.
第４図は、本考案である粉体噴霧用ノズルの使用状況を
示す説明図である。図において粉体噴霧用ノズルは、フ
ランジ５によりダクト６のノズル取付け口７に取付けら
れている。粉体噴霧用ノズルの開口端４から搬送用媒体
とともに導入された、例えば粉状Ｃａ（ＯＨ）２は、ス
リット状噴出孔３からダクト６内へ噴出され、該ダクト
６内を流れる、例えば排ガス中にほぼ均一に分散され、
該排ガス中の例えば酸性成分と効率よく接触して反応す
る。FIG. 4 is an explanatory view showing a usage situation of the powder spraying nozzle of the present invention. In the figure, the powder spray nozzle is attached to the nozzle attachment port 7 of the duct 6 by the flange 5. For example, powdery Ca (OH) 2 introduced together with the carrier medium from the opening end 4 of the powder spraying nozzle is ejected from the slit-shaped ejection holes 3 into the duct 6 and flows in the duct 6, for example, exhaust gas. Distributed almost uniformly in the
For example, an acidic component in the exhaust gas is efficiently contacted and reacted.
本実施例によれば、１本の噴霧用ノズルで、粉体をダク
ト内に充分に均一に分散することができる。また粉体の
噴出孔をスリット状にしたので、噴出孔に粉体が詰まる
ことがなく、清掃も容易である。また２つのスリット状
の噴出孔の間隔を設定することにより、粉体の噴霧角度
を任意に変更することができる。また噴出孔３を有する
パイプ１をダクト６の半径方向にスライドさせることに
より、スリット状噴出孔３を、ガス流速、搬送用媒体流
速に応じた最適位置に移動させることができる。According to the present embodiment, the powder can be dispersed sufficiently uniformly in the duct with one spray nozzle. Further, since the powder ejection holes are formed in a slit shape, the powder ejection holes are not clogged with the powder and cleaning is easy. Further, the spray angle of the powder can be arbitrarily changed by setting the interval between the two slit-shaped ejection holes. Further, by sliding the pipe 1 having the ejection holes 3 in the radial direction of the duct 6, the slit-shaped ejection holes 3 can be moved to an optimum position according to the gas flow velocity and the transport medium flow velocity.
さらに本実施例において、スリット状の噴出孔３を９０
°間隔で四方に４つ設けることにより、粉体を３６０°
すべての方向に均一に噴霧することもできる。Further, in this embodiment, the slit-shaped ejection holes 3 are
Powder is provided 360 ° by providing four in four directions at intervals.
It is also possible to spray uniformly in all directions.
本考案によれば、噴出孔を少なくとも２本のスリット状
としたことにより、噴霧角度が広くなるので、分散器を
用いることなく粉体を均一に噴霧し分散させることがで
きるとともに、噴出孔における粉体の目詰まりを防止す
ることができる。According to the present invention, the spray angle is widened by forming at least two slits in the spray hole, so that the powder can be uniformly sprayed and dispersed without using a disperser, and at the same time in the spray hole. It is possible to prevent clogging of powder.
第１図は、本考案の一実施例を示す平面図、第２図は、
第１図の側面図、第３図は、第１図のIII-III線矢視方
向断面図、第４図は、本考案の使用状況を示す説明図で
ある。 １…パイプ、２…閉端部、３…スリット状噴出孔、４…
開口端、５…フランジ。FIG. 1 is a plan view showing an embodiment of the present invention, and FIG.
FIG. 1 is a side view, FIG. 3 is a sectional view taken along the line III-III of FIG. 1, and FIG. 4 is an explanatory view showing a use state of the present invention. 1 ... Pipe, 2 ... Closed end part, 3 ... Slit-like ejection hole, 4 ...
Open end, 5 ... Flange.
Claims (1)
イプ条のノズルであって、軸方向に少なくとも２本のス
リット状の噴出孔を有することを特徴とする粉体噴霧用
ノズル。1. A nozzle for powder spraying, which is a pipe-shaped nozzle inserted in a gas flow path flowing in a duct and has at least two slit-shaped ejection holes in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987187539U JPH0611119Y2 (en) | 1987-12-09 | 1987-12-09 | Nozzle for powder spray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987187539U JPH0611119Y2 (en) | 1987-12-09 | 1987-12-09 | Nozzle for powder spray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0192248U JPH0192248U (en) | 1989-06-16 |
| JPH0611119Y2 true JPH0611119Y2 (en) | 1994-03-23 |
Family
ID=31478686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987187539U Expired - Lifetime JPH0611119Y2 (en) | 1987-12-09 | 1987-12-09 | Nozzle for powder spray |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0611119Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1021596B9 (en) * | 2013-06-25 | 2018-06-18 | Lhoist Rech Et Developpement Sa | METHOD AND DEVICE FOR TREATING GAS BY INJECTION OF PULVERULENT COMPOUND. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5425047Y2 (en) * | 1975-04-21 | 1979-08-23 | ||
| JPS61174925A (en) * | 1985-01-28 | 1986-08-06 | Mitsubishi Heavy Ind Ltd | Waste gas treatment |
| JPS61187231U (en) * | 1985-05-14 | 1986-11-21 |
-
1987
- 1987-12-09 JP JP1987187539U patent/JPH0611119Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0192248U (en) | 1989-06-16 |
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