JPS58129105A - Method of burning pulverized coal burning tangential firing boiler - Google Patents
Method of burning pulverized coal burning tangential firing boilerInfo
- Publication number
- JPS58129105A JPS58129105A JP1183182A JP1183182A JPS58129105A JP S58129105 A JPS58129105 A JP S58129105A JP 1183182 A JP1183182 A JP 1183182A JP 1183182 A JP1183182 A JP 1183182A JP S58129105 A JPS58129105 A JP S58129105A
- Authority
- JP
- Japan
- Prior art keywords
- pulverized coal
- coal
- concentration
- furnace
- burning
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010304 firing Methods 0.000 title description 8
- 239000003610 charcoal Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000009841 combustion method Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000488988 Monotropa Species 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
- F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2201/00—Staged combustion
- F23C2201/10—Furnace staging
- F23C2201/102—Furnace staging in horizontal direction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は黴１１縦焚タンゼンシャルファイアリングポイ
ラの燃一方法の改ＪＬＫ関する一〇である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a modified JLK combustion method for vertical firing tangential firing boiler.
Ｉｌ初炭責タンゼルシャルファイアリンダボイラでは、
ミル（倣尉炭機）から各コールノ４−すに至る微粉炭供
給管の配置上、インド管Ｏ採用が避は難い間亀であり、
そのために管断面でＯ徹粉嶽員度のノ（ラツキな成る程
度許してきた。同様の問題はコールバーナ部でも生じ、
３１１１図に示すようＫｔｅａｓ給管＜１１とコールバ
ーナノズル（２）とを火炉の各コーナ四″８ （Ｉ））
に配置した場合、火炉を上方からみると各コールバーナ
（２）から火炉へ噴出される微粉炭のうち、コーナ＋５
ｌ（Ｄ）のコールバーナノズル（２）から火炉へ噴出さ
れる微粉炭に炉壁（４１（６１儒で濃度が濃いという傾
向がある。次にこの点についての間醜を説明する。タン
ゼンシャルファイアリングボイラでの微粉炭の着火、燃
焼は、火炉内に噴射された微粉炭が雰囲気温度で加熱さ
れて、まず着火しやすい揮発分が着火、燃焼し１次に揮
発分の燃焼に伴う温度上昇も助けになって残りのチャー
（一定炭素分）が着火、燃焼する。従って燃料比（固定
炭素／揮発分）が高い微粉炭の場合には。Il first coal fired tanzel fire cylinder boiler,
Due to the arrangement of the pulverized coal supply pipes from the mill (imitation coal machine) to each coal no. 4, the adoption of Indian pipes was unavoidable.
For this reason, we have allowed a certain degree of O powder penetration in the tube cross section.A similar problem also occurs in the coal burner section.
As shown in Figure 3111, connect the Kteas feed pipe <11 and the coal burner nozzle (2) to each corner of the furnace 4"8 (I))
When the furnace is placed in
The pulverized coal ejected from the coal burner nozzle (2) of l(D) into the furnace has a tendency to have a high concentration at the furnace wall (41 (61).Next, I will explain the problem with this point. Ignition and combustion of pulverized coal in a coal firing boiler occurs when the pulverized coal injected into the furnace is heated at ambient temperature, and the volatile components that are easy to ignite are ignited and combusted, and then the volatile components are combusted. A rise in temperature also helps the remaining char (constant carbon content) to ignite and burn, thus in the case of pulverized coal with a high fuel ratio (fixed carbon/volatile content).
着火点が嬌びがちになる。その際、雰囲気温度が着火安
定のための重要な条件になる。雰囲気温度を上げるもの
としては、上流側火炎（例えば亀１図についていえばコ
ーナ＾の火炎がコーナ（Ｂ）の火炎の上流側火炎）があ
り、逆に雰囲気温度を下げるものとしては、水冷された
炉壁（３１〜（６）がある。The ignition point tends to be low. In this case, the ambient temperature becomes an important condition for stable ignition. One way to raise the atmospheric temperature is the upstream flame (for example, in Figure 1, the flame at corner ^ is the flame upstream of the flame at corner (B)), and conversely, the one that lowers the atmospheric temperature is water cooling. There are furnace walls (31 to (6)).
ｂ’、 上述ｏ １５ Ｋ ：ｆ−す（Ｂ）（Ｉ））ノ
：ｆ −ｐｙＡ−＋１２１から火炉へ噴出される黴な炭
に炉壁（４）（６）側で濃度が濃いという傾向があると
、黴粉縦焚タンゼンシャルファイアリンダポイツの最低
負荷を低く設定することができない、また炉壁（４）（
６） Ｋ ＩＦ）って燃えずに上昇する黴な炭量が多く
なる。さらに炉壁（４）（６）が空気不足０ＩＩＡ元雰
囲気にさらされて、炉壁の腐蝕が早まるという開動な生
じる。b', the tendency that the concentration of moldy charcoal ejected from f-pyA-+121 into the furnace is higher on the furnace wall (4) and (6) sides. If there is, the minimum load of the mold powder vertical firing tangential fire cylinder point cannot be set low, and the furnace wall (4) (
6) K IF) increases the amount of moldy coal that rises without burning. Furthermore, the furnace walls (4) and (6) are exposed to the air-deficient original atmosphere, resulting in accelerated corrosion of the furnace walls.
本発明は前記の間観点に対処するもので、微粉炭焚タン
ゼンシャルファイアリンダボイラにおいて、微粉炭な各
コーナに設けたコールバ−ナノズルから火炉へ噴出させ
るに当り、どのコールバーナノズルでも倣１１＆巌Ｏ濃
度を隣接＝−すからＯ火炎により加熱される側を濃クシ
、炉１１に画する側を薄くシ【、燃焼させることを畳黴
とした黴１１１嶽焚タンゼンシャルファイアリングポイ
ツの燃焼方法に係り、その目的とする処は、微粉炭焚タ
ンゼンシャルファイアリングボイラの負低負萄を低く設
定することができる。炉壁に沿って燃えずに上昇する微
粉蝋゛量を減らすことができる。さらに炉壁の腐蝕を防
止することができる改良された黴看炭焚タンゼンシャル
ファイアリングボイラの燃焼方法を声すム点にある。The present invention deals with the above-mentioned point of view.In a pulverized coal-fired tangential fire cylinder boiler, when jetting pulverized coal from the coal burner nozzles provided at each corner to the furnace, any coal burner nozzle can be The side heated by the O flame is a thick comb, and the side bordering the furnace 11 is a thin comb. Regarding the combustion method, the objective is to set a low negative load of a pulverized coal-fired tangential firing boiler. The amount of fine wax that rises along the furnace wall without burning can be reduced. Furthermore, we would like to recommend an improved combustion method for a tangential firing boiler with mold-controlled coal that can prevent corrosion of the furnace wall.
、°次に本発明の微粉炭焚メンゼンシャルファイアリン
グボイラの燃焼方法な＠２．３．４．５図に示す一実施
例により説明すると、（１）が火炉の各コーナへ地びた
微粉炭供給管、（２）が同各供給管１１＋の先端に設け
たコールバーナノズル、（３１〜（６）がＦｌｌで、微
粉炭を各コーナ囚〜（Ｉ））に設けたコール、２−ナノ
ズル（２）から火炉へ噴出させるに当っては、どのコー
ルバーナノズル（２）でも微粉炭の濃度を隣接コーナか
らの火炎により加熱される１ｌｌｌ′ｉｋ濃くし、＃”
４ｍ（３１〜（６）に面する側を薄くし″Ｃ，燃焼させ
る。Next, the combustion method of the pulverized coal-fired mensential firing boiler of the present invention will be explained using an example shown in Figure 2.3.4.5. Charcoal supply pipe, (2) is a coal burner nozzle provided at the tip of each supply pipe 11+, (31 to (6) is Fll, coal is provided at each corner hole to (I)), 2- In injecting the pulverized coal from the nanozzle (2) to the furnace, the concentration of pulverized coal is increased by 1ll'ik in every coal burner nozzle (2) heated by the flame from the adjacent corner.
4m (thin the side facing 31-(6)''C) and burn.
こｏと＃、コールバーナノズル（２１から噴出させる微
粉炭に上述のｌＩ淡をつける方法とし【は、各黴＠縦供
給管（１１を第６図に示すように水平面に沿い同じ方向
に曲げて、遠心力を利用する方法、或いは微粉炭供給管
＋１１内に第４．５図に示すようにデフレクタブロック
（７）を取付けて、濃淡を生じさせる方法などがあるが
、いづれの方法を採用してもよい。The method of applying the above-mentioned heat to the pulverized coal ejected from the coal burner nozzle (21) is to bend each mold @ vertical supply pipe (11 in the same direction along the horizontal plane as shown in Figure 6). There are methods to use centrifugal force, or to create shading by installing a deflector block (7) inside the pulverized coal supply pipe +11 as shown in Figure 4.5, whichever method is used. You may.
以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく１本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design changes can be made without departing from the spirit of the present invention. .
絡１図は従来の微粉炭黄タンゼンシャル７アイリングボ
イラの燃焼方法を示す平面図、第２図は本発明に係る黴
粉嶽焚タンゼンシャルファイリンダボイラの燃焼方法の
一実施例を示す平面図、第６図は微粉炭の濃度に濃淡を
つけるーの方法を示す平面図、第４図は微粉炭の濃度に
濃淡をつける他の方法を示す縦断側面−，第５−はその
縦断正面図である。
（２）・・・・・・コールバーナノズル、（３１〜（６
）−・・・・・炉壁。
囚〜（麹・・・・・・谷コーナ。Fig. 1 is a plan view showing a combustion method of a conventional pulverized coal yellow tangential 7-eye ring boiler, and Fig. 2 is a plan view showing an embodiment of a combustion method of a tangential fine coal boiler according to the present invention. Figure 6 is a plan view showing a method of varying the concentration of pulverized coal, Figure 4 is a vertical side view showing another method of varying the concentration of pulverized coal, and Figure 5 is a vertical front view of the same. It is a diagram. (2)...Coal burner nozzle, (31~(6)
)−... Furnace wall. Prisoner ~ (Koji... Tani Corner.
Claims (1)
、微粉炭な各コーナに設けたコールバーナノズルから火
炉へ噴出させるに当り、どのコールバ−ナノズルでも黴
１１縦の濃度を隣接コーナからの火炎により加熱される
ｌｉｌを濃クシ、炉１１１に画する側を薄くして、燃焼
させることｖ４１黴とした黴粉炭賛タンゼンシャ羨ファ
イアリンダボイツの燃一方法。In the tangential fire cylinder boy 2, when the pulverized coal is ejected from the coal burner nozzle installed at each corner to the furnace, the vertical concentration of mold 11 is heated by the flame from the adjacent corner at each coal burner nozzle. The burning method of Linda Boits, who uses mold powder and charcoal, makes the side of the furnace 111 thinner and burns it into v41 mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1183182A JPS58129105A (en) | 1982-01-29 | 1982-01-29 | Method of burning pulverized coal burning tangential firing boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1183182A JPS58129105A (en) | 1982-01-29 | 1982-01-29 | Method of burning pulverized coal burning tangential firing boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58129105A true JPS58129105A (en) | 1983-08-02 |
| JPS6251361B2 JPS6251361B2 (en) | 1987-10-29 |
Family
ID=11788695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1183182A Granted JPS58129105A (en) | 1982-01-29 | 1982-01-29 | Method of burning pulverized coal burning tangential firing boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58129105A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0668469A3 (en) * | 1994-02-17 | 1996-04-24 | Praxair Technology Inc | Super off-stoichiometric combustion method. |
| EP0976977A1 (en) * | 1998-07-29 | 2000-02-02 | Mitsubishi Heavy Industries, Ltd. | Pulverized coal burner |
| CN107228357A (en) * | 2016-03-23 | 2017-10-03 | 山西三合盛节能环保技术股份有限公司 | One kind flows polygonal circle of contact coal dust decoupling combustion device and combustion method |
| CN114777144A (en) * | 2022-05-10 | 2022-07-22 | 西安热工研究院有限公司 | Method for reducing coking of water-cooled wall of tangential firing boiler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6087796B2 (en) * | 2013-11-26 | 2017-03-01 | 三菱日立パワーシステムズ株式会社 | boiler |
-
1982
- 1982-01-29 JP JP1183182A patent/JPS58129105A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0668469A3 (en) * | 1994-02-17 | 1996-04-24 | Praxair Technology Inc | Super off-stoichiometric combustion method. |
| EP0976977A1 (en) * | 1998-07-29 | 2000-02-02 | Mitsubishi Heavy Industries, Ltd. | Pulverized coal burner |
| CN107228357A (en) * | 2016-03-23 | 2017-10-03 | 山西三合盛节能环保技术股份有限公司 | One kind flows polygonal circle of contact coal dust decoupling combustion device and combustion method |
| CN107228357B (en) * | 2016-03-23 | 2020-02-18 | 山西三合盛节能环保技术股份有限公司 | A kind of uniform flow multi-angle tangential circular pulverized coal decoupling combustion device and combustion method |
| CN114777144A (en) * | 2022-05-10 | 2022-07-22 | 西安热工研究院有限公司 | Method for reducing coking of water-cooled wall of tangential firing boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6251361B2 (en) | 1987-10-29 |
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