JPH0311540Y2 - - Google Patents
Info
- Publication number
- JPH0311540Y2 JPH0311540Y2 JP9352886U JP9352886U JPH0311540Y2 JP H0311540 Y2 JPH0311540 Y2 JP H0311540Y2 JP 9352886 U JP9352886 U JP 9352886U JP 9352886 U JP9352886 U JP 9352886U JP H0311540 Y2 JPH0311540 Y2 JP H0311540Y2
- Authority
- JP
- Japan
- Prior art keywords
- burner
- fuel
- mixing chamber
- wear
- plate
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 52
- 239000002002 slurry Substances 0.000 claims description 19
- 238000000889 atomisation Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000956 alloy Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Description
【考案の詳細な説明】
[産業上の利用分野]
本考案は、高濃度石炭水スラリー等の強い摩耗
性を有する流体の噴霧燃焼を行なう場合に、バー
ナの耐摩耗性を向上し、長期間の使用をし得るよ
うにしたスラリー燃料用バーナに関するものであ
る。[Detailed description of the invention] [Industrial application field] The present invention improves the wear resistance of the burner and provides long-term use when spray combustion is performed on highly abrasive fluids such as high-concentration coal-water slurry. The present invention relates to a slurry fuel burner that can be used for.
[従来の技術]
従来のスラリー燃料用バーナは、第3図で示す
通り、バーナプラグ1とバーナプレート4とバー
ナチツプ7を外周部からチツプナツト10で固定
する構成になつている。前記バーナプラグ1は、
中央部に燃料供給孔2と、該燃料供給孔2の周辺
部の円周上に配列された複数の噴霧媒体供給孔3
を備えている。前記バーナプレート4は、前記バ
ーナプラグ1の前記燃料供給孔2と連通し該燃料
供給孔2から供給された燃料を分配するための流
路を有する燃料分配室5と、該燃料分配室5から
分配された燃料及び前記バーナプラグ1の噴霧媒
体供給孔3から供給された噴霧媒体を混合するた
めの複数の第1混合室6を備えている。前記バー
ナチツプ7は、前記バーナプレート4の複数の第
1混合室6と連通し、該第1混合室6で混合され
た燃料と噴霧媒体との混合物を一箇所に集め更に
混合するための第2混合室8と、該第2混合室8
で混合された混合物を外部に噴霧するため前記バ
ーナプレート4の反対側の端部に穿設された複数
の噴孔9とを備えている。[Prior Art] As shown in FIG. 3, a conventional slurry fuel burner has a structure in which a burner plug 1, a burner plate 4, and a burner tip 7 are fixed from the outer periphery with a tip nut 10. The burner plug 1 includes:
A fuel supply hole 2 in the center, and a plurality of spray medium supply holes 3 arranged on the circumference of the fuel supply hole 2.
It is equipped with The burner plate 4 includes a fuel distribution chamber 5 that communicates with the fuel supply hole 2 of the burner plug 1 and has a flow path for distributing the fuel supplied from the fuel supply hole 2; A plurality of first mixing chambers 6 are provided for mixing the distributed fuel and the atomizing medium supplied from the atomizing medium supply hole 3 of the burner plug 1. The burner tip 7 communicates with a plurality of first mixing chambers 6 of the burner plate 4, and has a second second mixing chamber for collecting and further mixing the mixture of fuel and atomizing medium mixed in the first mixing chambers 6. mixing chamber 8 and the second mixing chamber 8
A plurality of nozzle holes 9 are provided at the opposite end of the burner plate 4 to spray the mixture mixed in the burner plate 4 to the outside.
外部からバーナプラグ1へ流入した高濃度石炭
水スラリー等の燃料と圧縮空気等のに噴霧媒体と
は、それぞれ前記バーナプラグ1の燃料供給孔2
と噴霧媒体供給孔3とを通りバーナプレート4に
流入する。該バーナプレート4では、前記燃料供
給孔2から流入した燃料が燃料分配室5の流路か
ら第1混合室6に向かつて分配され、分配された
燃料は、前記噴霧媒体供給孔3を通り該第1混合
室6に流入した噴霧媒体と混合されバーナチツプ
7に流入する。該バーナチツプ7では、前記バー
ナプレート4の第1混合室6から流出した燃料
が、第2混合室8に集められ更に混合された後噴
孔9を通して外部に噴霧され燃焼する。 The fuel such as high-concentration coal water slurry and the like that flow into the burner plug 1 from the outside and the atomizing medium such as compressed air are the fuel supply holes 2 of the burner plug 1, respectively.
and the atomizing medium supply hole 3 into the burner plate 4 . In the burner plate 4, the fuel flowing from the fuel supply hole 2 is distributed from the flow path of the fuel distribution chamber 5 toward the first mixing chamber 6, and the distributed fuel passes through the atomization medium supply hole 3 and flows into the first mixing chamber 6. It is mixed with the spray medium that has flowed into the first mixing chamber 6 and flows into the burner tip 7. In the burner chip 7, the fuel flowing out from the first mixing chamber 6 of the burner plate 4 is collected in a second mixing chamber 8, further mixed, and then sprayed to the outside through a nozzle hole 9 and combusted.
[考案が解決しようとする問題点]
しかしながら、上記従来の技術では、バーナプ
ラグ1、バーナプレート4、バーナチツプ7はそ
れぞれ同一素材で形成されており、高濃度石炭水
スラリー等の強い摩耗性を有する流体を噴霧燃焼
に用いるとスラリーに接触する部分は激しく摩耗
し、使用後数十時間毎にバーナプレート4とバー
ナチツプ7とを交換する必要があつた。[Problems to be solved by the invention] However, in the above conventional technology, the burner plug 1, the burner plate 4, and the burner tip 7 are each made of the same material, which has strong abrasive properties such as high concentration coal-water slurry. When a fluid is used for spray combustion, the parts that come into contact with the slurry are severely worn, and it is necessary to replace the burner plate 4 and the burner tip 7 every several tens of hours after use.
本考案は、上述の実情に鑑み、耐摩耗性を向上
し長時間の使用をし得るようにしたスラリー燃料
用バーナを提供することを目的とするものであ
る。 In view of the above-mentioned circumstances, it is an object of the present invention to provide a slurry fuel burner that has improved wear resistance and can be used for a long time.
[問題点を解決するための手段]
本考案は、スラリー状の燃料を供給するための
燃料供給孔と噴霧媒体を供給するための複数の噴
霧媒体供給孔を備えたバーナプラグと、該バーナ
プラグの前記燃料供給孔から供給された燃料を分
配する燃料分配室と該燃料分配室から分配されて
送給された燃料及び前記バーナプラグの噴霧媒体
供給孔から送給された噴霧媒体を混合させる第1
混合室とを備えたバーナプレートと、該バーナプ
レートの前記第1混合室から送給された燃料及び
噴霧媒体の混合物を集め混合するための第2混合
室と該第2混合室で混合された燃料及び噴霧媒体
の混合物を外部に噴霧するための複数の噴孔とを
備えたバーナチツプとで構成されるバーナにおい
て、前記バーナプレートの前記燃料分配室と前記
第1混合室の内壁及び前記バーナチツプの前記第
2混合室と前記噴孔の内壁に耐摩耗性を有する部
材を着脱可能に設け、スラリー燃料用バーナとし
たものである。[Means for Solving the Problems] The present invention provides a burner plug including a fuel supply hole for supplying slurry fuel and a plurality of atomization medium supply holes for supplying an atomization medium, and the burner plug. a fuel distribution chamber that distributes the fuel supplied from the fuel supply hole of the burner plug; and a fuel distribution chamber that mixes the fuel distributed and supplied from the fuel distribution chamber and the atomization medium that is supplied from the atomization medium supply hole of the burner plug. 1
a burner plate having a mixing chamber; a second mixing chamber for collecting and mixing a mixture of fuel and atomizing medium fed from the first mixing chamber of the burner plate; a burner tip with a plurality of nozzle holes for atomizing a mixture of fuel and atomizing medium to the outside, the fuel distribution chamber of the burner plate and the inner wall of the first mixing chamber and the burner tip A wear-resistant member is removably provided on the inner wall of the second mixing chamber and the nozzle hole to form a slurry fuel burner.
[作用]
従つて本考案では、バーナプラグの燃料供給孔
からバーナプレートの燃料分配室を介して第1混
合室に送給されたスラリー状の燃料はバーナプラ
グの噴霧媒体供給孔からバーナプレートの第1混
合室に送給された噴霧媒体と混合されてバーナチ
ツプの第2混合室へ送給され、第2混合室で更に
混合されて噴孔より噴霧され、燃焼されるが、バ
ーナプレートの燃料分配室と第1混合室の内壁及
びバーナチツプの第2混合室と噴孔の内壁に耐摩
耗性の素材を用いたため高濃度石炭水スラリー等
の強い摩耗性を有する流体を噴霧する場合にもバ
ーナ内壁の摩耗は起こりにくい。[Function] Therefore, in the present invention, the slurry fuel that is fed from the fuel supply hole of the burner plug to the first mixing chamber via the fuel distribution chamber of the burner plate is transferred from the atomizing medium supply hole of the burner plug to the burner plate. It is mixed with the spray medium fed to the first mixing chamber and fed to the second mixing chamber of the burner chip, where it is further mixed and atomized through the nozzle holes and burned. Since wear-resistant materials are used for the inner walls of the distribution chamber and the first mixing chamber, as well as the inner walls of the second mixing chamber and nozzle hole of the burner tip, the burner can be used even when spraying highly abrasive fluids such as high-concentration coal-water slurry. Inner wall wear is less likely to occur.
[実施例]
以下、本考案の実施例を図面に基いて説明す
る。[Example] Hereinafter, an example of the present invention will be described based on the drawings.
第1図は本考案の一実施例の説明図であり、第
3図と同一部分に同一符号を付してある。 FIG. 1 is an explanatory diagram of an embodiment of the present invention, and the same parts as in FIG. 3 are given the same reference numerals.
バーナプラグ1とバーナプレート4及びバーナ
チツプ7はSKD61等の低合金鋼で形成されてい
る。バーナプレート4の燃料分配室5と第1混合
室6及びバーナチツプ7の噴孔9は特に摩耗が激
しいため、SiC等のセラミツク製耐摩耗部材を用
いて内壁の耐摩耗性の向上を計り、セラミツク部
材の耐熱衝性を向上させるために肉厚2〜3mm、
直径10〜20mm、長さ10〜50mm程度の大きさに形成
して燃料分配室ブロツク11a、第1混合室ノズ
ル11b、噴孔ノズル11cとしている。特にバ
ーナプレート4の第1混合室ノズル11bとバー
ナチツプ7の噴孔ノズル11cとを形成するセラ
ミツク製の耐摩耗部材は、スラリーと噴霧媒体と
の混合物の流動方向上流側からSKD61等の母材
に嵌入して楔着するために、外周部にテーパ面を
有する形状となつている。セラミツク製の燃料分
配室ブロツク11a、第1混合室ノズル11b、
噴孔ノズル11cは、それぞれバーナプレート
4、バーナチツプ7の母材に係合させるために穿
設された凹部に対してセラミツク系接着剤を用い
て着脱可能に取付けられている。バーナチツプ7
の第2混合室8を摩耗から保護するため、第2混
合室8内壁円筒状部分には硬質合金製の耐摩耗リ
ング12aを取付け、第2混合室8内壁端部円錐
台状部分には、セラミツク製の噴孔ノズル11c
を嵌入し得るように、セラミツク製の噴孔ノズル
11cの外周大径部分と同一形状をした孔を複数
有する硬質合金製の耐摩耗プレート12bを嵌装
してある。硬質合金製の耐摩耗リング12aと硬
質合金製の耐摩耗プレート12bは共に金属系材
料を使用したため肉厚等を大きくしても耐熱衝性
は維持できる。チツプナツト10によりバーナプ
ラグ1とバーナプレート4及びバーナチツプ7を
固定すると、硬質合金製の耐摩耗リング12a
は、一端をバーナプレート4により押圧され、他
端をバーナチツプ7に止めネジ13を用いて固定
された硬質合金製の耐摩耗プレート12bにより
押圧されることでバーナチツプ7内に固定され
る。 The burner plug 1, burner plate 4, and burner tip 7 are made of low alloy steel such as SKD61. Since the fuel distribution chamber 5 of the burner plate 4, the first mixing chamber 6, and the nozzle hole 9 of the burner chip 7 are subject to particularly severe wear, a wear-resistant member made of ceramic such as SiC is used to improve the wear resistance of the inner wall. In order to improve the heat impact resistance of the parts, the wall thickness is 2 to 3 mm.
The fuel distribution chamber block 11a, the first mixing chamber nozzle 11b, and the injection hole nozzle 11c are formed to have a diameter of about 10 to 20 mm and a length of about 10 to 50 mm. In particular, the ceramic wear-resistant member forming the first mixing chamber nozzle 11b of the burner plate 4 and the injection hole nozzle 11c of the burner chip 7 is applied to the base material such as SKD61 from the upstream side in the flow direction of the mixture of slurry and spray medium. It has a tapered surface on the outer periphery in order to fit in and wedge it. Ceramic fuel distribution chamber block 11a, first mixing chamber nozzle 11b,
The injection hole nozzles 11c are removably attached to recesses formed to engage with the base materials of the burner plate 4 and the burner chip 7, respectively, using a ceramic adhesive. Burna Chip 7
In order to protect the second mixing chamber 8 from wear, a hard metal wear-resistant ring 12a is attached to the cylindrical portion of the inner wall of the second mixing chamber 8, and a truncated conical portion of the inner wall of the second mixing chamber 8 is attached to the cylindrical portion of the inner wall of the second mixing chamber 8. Ceramic injection hole nozzle 11c
A wear-resistant plate 12b made of a hard alloy and having a plurality of holes having the same shape as the large diameter portion of the outer periphery of the ceramic nozzle nozzle 11c is fitted so that the nozzle 11c can be fitted therein. Since both the hard metal wear ring 12a and the hard metal wear plate 12b are made of metal materials, thermal shock resistance can be maintained even if the wall thickness is increased. When the burner plug 1, burner plate 4, and burner tip 7 are fixed with the tip nut 10, a wear-resistant ring 12a made of hard metal is attached.
is fixed in the burner chip 7 by having one end pressed by the burner plate 4 and the other end being pressed by a hard metal wear-resistant plate 12b fixed to the burner chip 7 using a set screw 13.
尚、これ以外の部分の構造は第3図に示すバー
ナと同じである。 The structure of the other parts is the same as the burner shown in FIG. 3.
斯かる構成のスラリー燃料用バーナによりスラ
リーを噴霧燃焼すると、最も摩耗の激しいバーナ
プレート4の燃料分配室ブロツク11aと第1混
合室ノズル11bの内壁及びバーナチツプ7の噴
孔ノズル11cの内壁はセラミツク製の耐摩耗部
材により形成されているために摩耗は起りにく
い。また長期間の使用により摩耗が進行したとき
には、セラミツク製の耐摩耗部材を交換する。 When slurry is spray-combusted by a slurry fuel burner having such a configuration, the inner walls of the fuel distribution chamber block 11a and the first mixing chamber nozzle 11b of the burner plate 4, which are the most worn, and the inner wall of the nozzle nozzle 11c of the burner tip 7 are made of ceramic. Since it is made of wear-resistant material, wear is less likely to occur. In addition, when wear progresses due to long-term use, the ceramic wear-resistant member should be replaced.
次に摩耗の激しい第2混合室8内壁は、硬質合
金製の耐摩耗リング12aと硬質合金製の耐摩耗
プレート12bで嵌装され摩耗から保護されてい
るため、混合室8内壁も摩耗しにくい。又硬質合
金製の耐摩耗リング12aと硬質合金製の耐摩耗
プレート12aは摩耗が進行した時に交換をす
る。さらに肉厚等を調整することにより交換時期
をセラミツク製の耐摩耗部材に合わせることがで
きる。 Next, the inner wall of the second mixing chamber 8, which is subject to severe wear, is protected from wear by being fitted with a hard alloy wear-resistant ring 12a and a hard alloy wear-resistant plate 12b, so that the inner wall of the mixing chamber 8 is also not easily worn. . Further, the wear-resistant ring 12a made of hard alloy and the wear-resistant plate 12a made of hard alloy are replaced when wear progresses. Furthermore, by adjusting the wall thickness, etc., the replacement period can be matched to that of the ceramic wear-resistant member.
第2図は本考案の他の実施例の説明図で、硬質
合金製の耐摩耗プレート12bに穿設された孔を
噴孔9と同径にし、セラミツク製の噴孔ノズル1
1cを第2混合室8内部から押付けるように硬質
合金製の耐摩耗プレートを嵌装したものである。
斯かる構成として前述と同様の噴孔等の寿命の長
期化が図られる。 FIG. 2 is an explanatory diagram of another embodiment of the present invention, in which the holes drilled in the wear-resistant plate 12b made of hard alloy have the same diameter as the nozzle holes 9, and the nozzles 1 are made of ceramic.
A wear-resistant plate made of a hard alloy is fitted so as to press 1c from inside the second mixing chamber 8.
With such a configuration, the life of the nozzle holes etc. can be extended as described above.
尚、本考案は上述の実施例に限定されるもので
はなく、各機器の材質を同種の機能を有する別の
材質に代替することも可能なこと、その他本考案
の要旨を逸脱しない範囲内で種々変更を加え得る
こと等は勿論である。 It should be noted that the present invention is not limited to the above-mentioned embodiments, and it is also possible to replace the material of each device with another material having the same type of function, and other modifications may be made without departing from the gist of the present invention. Of course, various changes can be made.
[考案の効果]
上記したように、本考案のスラリー燃料用バー
ナによれば、スラリーに接触する部分の摩耗を低
減することができ、又セラミツク製の耐摩耗部材
や硬質合金製の耐摩耗リング及び硬質合金製の耐
摩耗プレートを交換することで、長期間の使用が
可能で経済的なスラリー燃料用バーナに対する要
求が実現し得る等の種々の優れた硬化を奏し得
る。[Effects of the invention] As described above, according to the slurry fuel burner of the invention, the wear of the parts that come into contact with the slurry can be reduced, and the wear-resistant member made of ceramic and the wear-resistant ring made of hard alloy can be reduced. By replacing the wear-resistant plate made of hard alloy, various types of excellent hardening can be achieved, such as realizing the demand for an economical slurry fuel burner that can be used for a long period of time.
第1図は本考案の一実施例の説明図、第2図は
本考案の他の実施例の説明図、第3図は従来例の
説明図である。
図中11はセラミツク製耐摩耗部材、11aは
燃料分配室ブロツク、11bは第1混合室ノズ
ル、11cは噴口ノズル、12aは硬質合金製の
耐摩耗リング、12bは硬質合金製の耐摩耗プレ
ートを示す。
FIG. 1 is an explanatory diagram of one embodiment of the present invention, FIG. 2 is an explanatory diagram of another embodiment of the present invention, and FIG. 3 is an explanatory diagram of a conventional example. In the figure, 11 is a wear-resistant member made of ceramic, 11a is a fuel distribution chamber block, 11b is a first mixing chamber nozzle, 11c is a jet nozzle, 12a is a wear-resistant ring made of hard alloy, and 12b is a wear-resistant plate made of hard alloy. show.
Claims (1)
と噴霧媒体を供給するための複数の噴霧媒体供給
孔を備えたバーナプラグと、該バーナプラグの前
記燃料供給孔から供給された燃料を分配する燃料
分配室と該燃料分配室から分配されて送給された
燃料及び前記バーナプラグの噴霧媒体供給孔から
送給された噴霧媒体を混合させる第1混合室とを
備えたバーナプレートと、該バーナプレートの前
記第1混合室から送給された燃料及び噴霧媒体の
混合物を集め混合するための第2混合室と該第2
混合室で混合された燃料及び噴霧媒体の混合物を
外部に噴霧するための複数の噴孔とを備えたバー
ナチツプとで構成されるバーナにおいて、前記バ
ーナプレートの前記燃料分配室と前記第1混合室
の内壁及び前記バーナチツプの前記第2混合室と
前記噴孔の内壁に耐摩耗性を有する部材を着脱可
能に設けたことを特徴とするスラリー燃料用バー
ナ。 A burner plug including a fuel supply hole for supplying slurry fuel and a plurality of atomization medium supply holes for supplying an atomization medium, and a fuel for distributing the fuel supplied from the fuel supply hole of the burner plug. a burner plate comprising a distribution chamber and a first mixing chamber that mixes the fuel distributed and supplied from the fuel distribution chamber and the atomization medium supplied from the atomization medium supply hole of the burner plug; and the burner plate. a second mixing chamber for collecting and mixing the mixture of fuel and atomizing medium fed from the first mixing chamber;
a burner tip having a plurality of nozzle holes for atomizing a mixture of fuel and atomizing medium mixed in a mixing chamber to the outside, the fuel distribution chamber of the burner plate and the first mixing chamber; A burner for slurry fuel, characterized in that a wear-resistant member is removably provided on the inner wall of the burner chip, the second mixing chamber of the burner chip, and the inner wall of the nozzle hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9352886U JPH0311540Y2 (en) | 1986-06-19 | 1986-06-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9352886U JPH0311540Y2 (en) | 1986-06-19 | 1986-06-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62204133U JPS62204133U (en) | 1987-12-26 |
JPH0311540Y2 true JPH0311540Y2 (en) | 1991-03-20 |
Family
ID=30956180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9352886U Expired JPH0311540Y2 (en) | 1986-06-19 | 1986-06-19 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0311540Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100990748B1 (en) | 2008-04-22 | 2010-10-29 | 주식회사 한미노즐 | Nozzle for incinerator |
-
1986
- 1986-06-19 JP JP9352886U patent/JPH0311540Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS62204133U (en) | 1987-12-26 |
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