JPH0410211U - - Google Patents
Info
- Publication number
- JPH0410211U JPH0410211U JP4734590U JP4734590U JPH0410211U JP H0410211 U JPH0410211 U JP H0410211U JP 4734590 U JP4734590 U JP 4734590U JP 4734590 U JP4734590 U JP 4734590U JP H0410211 U JPH0410211 U JP H0410211U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- exhaust gas
- nozzle
- air
- air nozzle
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims 3
- 239000007789 gas Substances 0.000 claims 3
- 239000004449 solid propellant Substances 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000012159 carrier gas Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000003245 coal Substances 0.000 description 9
- 238000007664 blowing Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す縦断側面図、
第２図は第１図の−矢視正面図、第３図は第
１図の−水平断面図、第４図は本考案が適用
されたボイラ火炉の一例を示す全体縦断側面図で
ある。第５図は燃焼用空気の代りに燃焼排ガスを
使用する従来の微粉炭焚きボイラ火炉の一例を示
す縦断側面図、第６図は同じくバーナ部の縦断側
面図、第７図は第６図の−矢視正面図、第８
図は第６図の−水平断面図である。第９図は
、微粉炭火炎の着火安定限界を再循環排ガス混入
率と石炭中揮発分の関係で示した図、第１０図は
第９図のデータを得るのに用いられた燃焼試験炉
を示す系統図である。
０１……ボイラ火炉、０２……バーナ風箱、０
３……コールコンパートメント、０４……エアコ
ンパートメント、０５……一次排ガス調整ダンパ
、０６……二次排ガス調整ダンパ、０７……コー
ルエアノズル、０８……二次エアノズル、０９…
…コールノイズ、１０……微粉炭輸送管、１１…
…燃焼用排ガスダクト、１２……微粉炭混合気、
１３……燃焼用排ガス、１４……一次排ガス、１
５……二次排ガス、１６……石炭粉砕機、１７…
…石炭、１８……搬送用空気、１９……微粉炭火
炎、２１……フレツシユエア、２２……フレツシ
ユエア量調整用ダンパ、２３……フレツシユエア
投入ダンパ、２４……流入口、２５……フレツシ
ユエア送風管。
FIG. 1 is a vertical side view showing an embodiment of the present invention;
2 is a front view taken in the direction of the - arrow in FIG. 1, FIG. 3 is a horizontal sectional view taken in the direction shown in FIG. Figure 5 is a vertical side view showing an example of a conventional pulverized coal-fired boiler furnace that uses combustion exhaust gas instead of combustion air, Figure 6 is a vertical side view of the burner section, and Figure 7 is the same as Figure 6. - Front view in arrow direction, No. 8
The figure is a -horizontal sectional view of FIG. Figure 9 shows the ignition stability limit of a pulverized coal flame in relation to the recirculated exhaust gas mixture rate and the volatile content in the coal. Figure 10 shows the combustion test furnace used to obtain the data in Figure 9. FIG. 01...Boiler furnace, 02...Burner style box, 0
3... Coal compartment, 04... Air compartment, 05... Primary exhaust gas adjustment damper, 06... Secondary exhaust gas adjustment damper, 07... Coal air nozzle, 08... Secondary air nozzle, 09...
...Call noise, 10...Pulverized coal transport pipe, 11...
... Combustion exhaust gas duct, 12 ... Pulverized coal mixture,
13... Combustion exhaust gas, 14... Primary exhaust gas, 1
5...Secondary exhaust gas, 16...Coal crusher, 17...
... Coal, 18 ... Air for conveyance, 19 ... Pulverized coal flame, 21 ... Flexible air, 22 ... Damper for adjusting the amount of flexible air, 23 ... Flexible air input damper, 24 ... Inlet, 25 ... Flexible air blowing pipe .
Claims (1)
料を火炉内で燃焼させるものにおいて、上記火炉
内に開口し微粉固体燃料と搬送気体との混合気が
供給される燃料ノズルと、同燃料ノズルの周囲に
開口し空気が供給される燃料空気ノズルと、同燃
料空気ノズルの上方および下方に開口し燃焼排ガ
スが供給される二次空気ノズルと、同二次空気ノ
ズルへダンパを介して空気を供給する手段とを具
備したことを特徴とする排ガス再燃バーナ。 In a device that burns pulverized solid fuel in a furnace using oxygen contained in combustion exhaust gas, there is a fuel nozzle that opens into the furnace and supplies a mixture of pulverized solid fuel and carrier gas, and a fuel nozzle around the fuel nozzle. A fuel-air nozzle that is open and supplied with air, a secondary air nozzle that is opened above and below the fuel-air nozzle and that is supplied with combustion exhaust gas, and means for supplying air to the secondary air nozzle via a damper. An exhaust gas reburner characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4734590U JPH0410211U (en) | 1990-05-08 | 1990-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4734590U JPH0410211U (en) | 1990-05-08 | 1990-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0410211U true JPH0410211U (en) | 1992-01-29 |
Family
ID=31563195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4734590U Pending JPH0410211U (en) | 1990-05-08 | 1990-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0410211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013002658A (en) * | 2011-06-13 | 2013-01-07 | Ihi Corp | Opposed combustion boiler device |
-
1990
- 1990-05-08 JP JP4734590U patent/JPH0410211U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013002658A (en) * | 2011-06-13 | 2013-01-07 | Ihi Corp | Opposed combustion boiler device |
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