JPS6057117A - Ash dispersing nozzle structure - Google Patents
Ash dispersing nozzle structureInfo
- Publication number
- JPS6057117A JPS6057117A JP16608883A JP16608883A JPS6057117A JP S6057117 A JPS6057117 A JP S6057117A JP 16608883 A JP16608883 A JP 16608883A JP 16608883 A JP16608883 A JP 16608883A JP S6057117 A JPS6057117 A JP S6057117A
- Authority
- JP
- Japan
- Prior art keywords
- ash
- nozzle
- air
- injection
- flue
- 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
Landscapes
- Incineration Of Waste (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は石炭燃焼ボイラ、セメントキルン排ガスボイラ
等に応用できる灰飛散ノズル構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ash scattering nozzle structure that can be applied to coal combustion boilers, cement kiln exhaust gas boilers, and the like.
灰を後流へ飛散させる灰飛散ノズル構造として、従来ボ
イラ本体用、脱硝装置用としてのスートブロワ(煤吹)
は提案されているが、本発明の如く灰が堆積し易い個所
に煙道を貫通させて取付けたものは提案されていない。As an ash scattering nozzle structure that scatters ash to the wake, soot blowers are conventionally used for boiler bodies and denitrification equipment.
has been proposed, but there has been no proposal for installing a flue through a location where ash is likely to accumulate as in the present invention.
本発明は石炭焚ボイラの煙道ダクトにあって、スポット
的にガス流速の遅い部分に石炭燃焼灰が堆積する場合、
その灰を飛散させて後流へ運ぶための簡便な灰飛散ノズ
ル構造を提供せんとするものである。The present invention is applied to a flue duct of a coal-fired boiler, and when coal combustion ash accumulates in spots where the gas flow rate is slow,
The present invention aims to provide a simple ash scattering nozzle structure for scattering the ash and transporting it to the downstream stream.
以下本発明の実施例を図面について説明する。Embodiments of the present invention will be described below with reference to the drawings.
第1図は一般的な石炭燃焼ボイラの煙道1の1例で、ガ
ス流れが停滞し易い所あるいはガス流速が遅い部分に、
燃焼灰2が堆積し易い状態を示している。Figure 1 shows an example of the flue 1 of a typical coal-fired boiler.
This shows a state in which combustion ash 2 tends to accumulate.
第2図は灰の堆積し易い部分に、本発明の1実施例の灰
飛散ノズル3を取付けた例を示す。また第4図は灰飛散
ノズル3の構造を示す。第4図において4は盲板、5は
ノズル3の上方部側面に設けた噴射穴、6はノズル3に
取付けたつば、7はノズル3に取付けた把手、8は煙道
ダクト、9はダクト8に取付けたノズル3の支持兼シー
ルリング、10はシール用のガスケット、11はねじ込
みカップリング、12はフレキシブルホースであり、把
手7を持って回転させると、つば6がダクト8とシール
リング9の間に挟まれているので、ダクト3を回転させ
ることができる。FIG. 2 shows an example in which an ash scattering nozzle 3 according to an embodiment of the present invention is attached to a part where ash tends to accumulate. Further, FIG. 4 shows the structure of the ash scattering nozzle 3. In Fig. 4, 4 is a blind plate, 5 is an injection hole provided on the upper side of the nozzle 3, 6 is a collar attached to the nozzle 3, 7 is a handle attached to the nozzle 3, 8 is a flue duct, and 9 is a duct. 8 is a supporting/sealing ring for the nozzle 3 attached to the nozzle 3, 10 is a sealing gasket, 11 is a threaded coupling, and 12 is a flexible hose. When the handle 7 is held and rotated, the collar 6 connects the duct 8 and the seal ring 9. Since it is sandwiched between the two, the duct 3 can be rotated.
次に作用を説明すると、第8図は本発明による灰飛散ノ
ズル3を煙道1の灰2の堆積し易い個所に取付けて、エ
アをブローさせている状況を示す。Next, to explain the operation, FIG. 8 shows a situation in which the ash scattering nozzle 3 according to the present invention is attached to a part of the flue 1 where ash 2 is likely to accumulate, and air is blown.
即ち、図の如く空気母管15から分岐した空気配管I3
に弁14を設げ、前記第4図の如くカップリング11で
フレキシブルホース12とノズル3とを繋いでいるので
、弁14を開けると、ノズル3の噴射穴5からエアが噴
射され、灰2は後流側へ飛散する。That is, as shown in the figure, the air pipe I3 branches from the air main pipe 15.
Since the flexible hose 12 and the nozzle 3 are connected by the coupling 11 as shown in FIG. is scattered to the downstream side.
なお、ノズル3の噴射穴の数は、噴出速度を大きくとる
ために、1〜4個程度(第5図では3個)であるので、
灰をより効果的に飛ばす為にエアを360°の範囲に噴
射させるのがよい。従ってノズル3に把手7を設け、配
管13との接続はフレキシブルホースエ2で行なって、
ノズル3を把手7により回転させることができるように
している。Note that the number of injection holes in the nozzle 3 is approximately 1 to 4 (3 in Fig. 5) in order to increase the injection speed.
In order to blow away the ash more effectively, it is best to spray air over a 360° range. Therefore, the nozzle 3 is provided with a handle 7, and the connection to the piping 13 is made with a flexible hose 2.
The nozzle 3 can be rotated by a handle 7.
第9図(イ)(ロ) (ハ)は、そのノズル3の回転と
エアの噴射状況の関係を示しており、はぼ全周にわたり
、灰を飛散させることができるようにしている。なお、
ノズルの設置数量は、吹出し速度、有効半径、ダクト面
積等を考慮して1個以上の任意の数にすることができる
。Figures 9(a), 9(b), and 9(c) show the relationship between the rotation of the nozzle 3 and the air injection situation, making it possible to scatter ash over almost the entire circumference. In addition,
The number of installed nozzles can be set to one or more, taking into consideration the blowing speed, effective radius, duct area, etc.
本ノズル3の操作方法として、前述の場合は現場におけ
る手動操作を主体に説明したが、第10図に示した如く
、大口弁を電磁弁18にし、開閉を中央制御室からの遠
隔制御又はブローイング時間を設定して、完全自動化を
図ることができる。As for the operation method of this nozzle 3, in the above case, manual operation was mainly explained in the field, but as shown in Fig. 10, the large mouth valve is replaced with a solenoid valve 18, and the opening and closing is controlled by remote control from the central control room or by blowing. You can set the time and fully automate it.
またノズルの回転は公知の方法(例えば第10図の場合
のランクアンドピニオン方式)を採用して、弁の開閉操
作と連動して自動的に操作することが可能である。なお
、16はラック、17はランク駆動装置(ピニオン)で
ある。Further, the nozzle can be rotated automatically in conjunction with the opening/closing operation of the valve by employing a known method (for example, the rank and pinion method shown in FIG. 10). Note that 16 is a rack, and 17 is a rank drive device (pinion).
以上詳細に説明した如く本発明は構成されているので、
本発明の飛散ノズルから、噴射方向を変化させて空気を
噴射させれば、煙道の流れの遅い部分等に堆積している
灰を飛散させ、ガス流れに乗せて後流側へ運ぶことがで
き、煙道の流れのよどみの生じ易い部分等に灰が堆積す
るのを防止できる。Since the present invention is configured as explained in detail above,
By jetting air from the scattering nozzle of the present invention by changing the jetting direction, it is possible to scatter the ash accumulated in the slow-flowing parts of the flue and carry it to the downstream side along with the gas flow. This prevents ash from accumulating in areas where stagnation is likely to occur in the flue flow.
第1図は一般的な石炭燃焼ボイラの煙道の1例を示ず断
面図、第2図は本発明の実施例を示す灰飛散ノズルを煙
道に設置した状態を示す断面図、第3図は第2図のD−
D断面図、第4図は同ノズルの1部所面側面図、第5図
は第4図のA−A断面図、第6図は第4図のB−Blf
r面図、第7図は第4図のC−C断面図、第8図は同ノ
ズルの設置状態を示す断面図、第9図(イ)(ロ)(ハ
)は同ノズルの回転状態を説明する断面図、第10図は
第4図と異なるノズルの回転機構を示す側面図、第11
図は第10図のE−E断面図である。
図の主要部分の説明
1−煙道 2−灰
3−ノズル 5・−=噴射穴
7−把手 8−煙道ダクト
13−空気配管
ら
特開昭GO−57117(3)
范9図
(イ)(/ 、)
。d31σ
\ 5
/ 涙藷Fig. 1 is a cross-sectional view, not showing an example, of a flue of a general coal-fired boiler; Fig. 2 is a cross-sectional view showing an ash scattering nozzle according to an embodiment of the present invention installed in the flue; The figure is D- in Figure 2.
D sectional view, FIG. 4 is a partial side view of the same nozzle, FIG. 5 is a sectional view taken along line AA in FIG. 4, and FIG. 6 is taken along B-Blf in FIG.
r side view, Figure 7 is a CC sectional view of Figure 4, Figure 8 is a sectional view showing the installation state of the same nozzle, and Figures 9 (A), (B), and (C) are the rotational states of the same nozzle. Fig. 10 is a side view showing a nozzle rotation mechanism different from Fig. 4;
The figure is a sectional view taken along the line EE in FIG. 10. Explanation of the main parts of the figure 1 - Flue 2 - Ash 3 - Nozzle 5 - = Injection hole 7 - Handle 8 - Flue duct 13 - Air piping etc. JP-A-Sho GO-57117 (3) Fan 9 (A) (/,). d31σ \ 5 / lachrymal
Claims (1)
排ガス中に多くの灰分を含むボイラにおいて、ボイラ出
口から煙突までの煙道の流れのよどみの生じ易い部分や
、流速の遅い部分で灰が堆積し易い個所に、煙道を貫通
させて灰の飛散ノズルを取付け、同ノズルを手動又は自
動的に回転させる機構を設けて空気の噴射方向を変化さ
せることにより、灰を飛散させることを特徴とする灰飛
散ノズル構造。In boilers that contain a large amount of ash in the exhaust gas, such as coal-fired boilers or cement kiln exhaust gas boilers, this product can be used in areas where stagnation tends to occur in the flue flow from the boiler outlet to the chimney, or where ash is likely to accumulate in areas where the flow rate is slow. , an ash scattering nozzle characterized in that an ash scattering nozzle is attached through a flue, and a mechanism is provided to rotate the nozzle manually or automatically to change the direction of air injection, thereby scattering ash. structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16608883A JPS6057117A (en) | 1983-09-09 | 1983-09-09 | Ash dispersing nozzle structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16608883A JPS6057117A (en) | 1983-09-09 | 1983-09-09 | Ash dispersing nozzle structure |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6057117A true JPS6057117A (en) | 1985-04-02 |
Family
ID=15824765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16608883A Pending JPS6057117A (en) | 1983-09-09 | 1983-09-09 | Ash dispersing nozzle structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6057117A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01260208A (en) * | 1988-04-11 | 1989-10-17 | Mitsubishi Heavy Ind Ltd | Combustion ash accumulation preventive device |
JP2012035155A (en) * | 2010-08-04 | 2012-02-23 | Jfe Steel Corp | Dust removing apparatus of dust collecting duct |
CN103047667A (en) * | 2013-01-23 | 2013-04-17 | 国核电力规划设计研究院 | Front horizontal flue collapse prevention device of thermal power plant deduster |
WO2023053218A1 (en) | 2021-09-28 | 2023-04-06 | 三菱重工業株式会社 | Denitration device |
-
1983
- 1983-09-09 JP JP16608883A patent/JPS6057117A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01260208A (en) * | 1988-04-11 | 1989-10-17 | Mitsubishi Heavy Ind Ltd | Combustion ash accumulation preventive device |
JP2012035155A (en) * | 2010-08-04 | 2012-02-23 | Jfe Steel Corp | Dust removing apparatus of dust collecting duct |
CN103047667A (en) * | 2013-01-23 | 2013-04-17 | 国核电力规划设计研究院 | Front horizontal flue collapse prevention device of thermal power plant deduster |
WO2023053218A1 (en) | 2021-09-28 | 2023-04-06 | 三菱重工業株式会社 | Denitration device |
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