JP3349337B2 - Burner for wet furnace - Google Patents
Burner for wet furnaceInfo
- Publication number
- JP3349337B2 JP3349337B2 JP07996796A JP7996796A JP3349337B2 JP 3349337 B2 JP3349337 B2 JP 3349337B2 JP 07996796 A JP07996796 A JP 07996796A JP 7996796 A JP7996796 A JP 7996796A JP 3349337 B2 JP3349337 B2 JP 3349337B2
- Authority
- JP
- Japan
- Prior art keywords
- burner
- passage
- pipe
- gas
- furnace
- 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 - Fee Related
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガス化炉、湿式ボ
イラ等に採用される湿式炉用バーナに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burner for a wet furnace used in gasifiers, wet boilers, and the like.
【０００２】[0002]
【従来の技術】高負荷燃焼で且つ溶融スラグが炉壁を流
下する湿式炉のバーナには、一般に水冷二重管型のバー
ナが適用されている。図５は、このような従来の水冷二
重管型バーナであり（ａ）はその正面から、（ｂ）は
（ａ）のＧ−Ｇ矢視断面、（ｃ）は（ｂ）のＨ−Ｈ矢視
断面を示す。2. Description of the Related Art A water-cooled double-pipe type burner is generally applied to a burner of a wet furnace in which high load combustion and molten slag flow down a furnace wall. FIGS. 5A and 5B show such a conventional water-cooled double-pipe type burner, wherein FIG. 5A is a front view, FIG. 5B is a sectional view taken along line GG of FIG. 5A, and FIG. 3 shows a cross section taken along the arrow H.
【０００３】ここで、２１は燃料供給管で、その中に微
粉炭等の燃料と空気との混合気通路２４を形成し、ま
た、２２は水冷管で、前記燃料供給管２１との間に空気
通路２５を区画、形成している。なお水冷管２２は、そ
の内部に流路仕切管２３で仕切られて往復路となる冷却
水通路２６を形成している。[0003] Here, reference numeral 21 denotes a fuel supply pipe, in which a mixture passage 24 of a fuel such as pulverized coal or the like and air is formed. An air passage 25 is defined and formed. The water cooling pipe 22 has a cooling water passage 26 formed therein, which is partitioned by a flow path partitioning pipe 23 to be a reciprocating path.
【０００４】従って、実線矢印Ｆで供給された微粉炭等
の燃料は、太線矢印Ａで供給される空気と共にそれぞれ
の通路端部から炉内に供給されることになるが、前記太
線矢印Ａで空気通路２５へ供給される空気は、破線矢印
Ｗで冷却水通路２６を往復する冷却水により冷却され
る。Accordingly, the fuel such as pulverized coal supplied by the solid arrow F is supplied into the furnace from the end of each passage together with the air supplied by the thick arrow A. The air supplied to the air passage 25 is cooled by cooling water reciprocating in the cooling water passage 26 as indicated by a dashed arrow W.
【０００５】[0005]
【発明が解決しようとする課題】前記した従来の二重管
型バーナを炉壁に取付けた状況を図４に示す。FIG. 4 shows a state in which the above-mentioned conventional double tube type burner is mounted on a furnace wall.
【０００６】二重管型バーナ４３は、多数の水冷管４１
を密接して構成された炉壁に対し、シールボックス４２
を貫通し、かつ前記水冷管４１の一部を押し分けるよう
にして先端を炉内に開口するように取付けられるが、前
記水冷管４１および二重管型バーナ４３自身の冷却効果
により、この取付部の固化、流動スラグ４５は取付部以
外の炉壁部の固化、流動スラグ４４とは違って同バーナ
取付部全体に亘って厚く成長する。The double tube type burner 43 has a large number of water cooling tubes 41.
Is sealed to the furnace wall,
And the water cooling tube 41 is attached so that a part of the water cooling tube 41 is pressed and opened so that the front end is opened in the furnace. Due to the cooling effect of the water cooling tube 41 and the double tube type burner 43 itself, this mounting is performed. The solidified portion and the fluidized slag 45 grow thickly over the entire burner attaching portion unlike the solidified portion and the fluidized slag 44 of the furnace wall portion other than the attaching portion.
【０００７】そして、場合によってはバーナ４３のノズ
ル先端を覆うまで成長し、ついにはバーナ４３からの各
噴流を阻害するか、更に発達してバーナ４３のノズル開
口部を閉塞するおそれがある。[0007] In some cases, the burner 43 grows to cover the tip of the nozzle, and may eventually hinder each jet from the burner 43 or may further develop to close the nozzle opening of the burner 43.
【０００８】即ち、湿式炉では燃料である石炭中の灰を
炉内で溶融スラグ化し、炉を構成する水冷壁で捕捉し、
スラグ流として炉壁を流下させ炉底より排出されるもの
であるが、このスラグ流は、炉内からのふく射熱流束
と、炉壁吸熱量、および灰供給量より決まる。That is, in a wet furnace, ash in coal, which is fuel, is melted and slagged in the furnace, and captured by a water cooling wall constituting the furnace.
The slag flow is caused to flow down the furnace wall and discharged from the furnace bottom. The slag flow is determined by the radiant heat flux from the furnace, the heat absorption of the furnace wall, and the ash supply.
【０００９】一方、この湿式炉へ微粉炭等の燃料、空気
を供給するバーナは、水冷壁を貫通して取付けられるこ
とになるが、この取付部は水冷型バーナと水冷壁の両方
から冷却されることになり、バーナ取付部を起点として
その近傍ではスラグの冷却度合が大きく、スラグが固化
・成長し、これがバーナ先端部まで成長した場合は、バ
ーナノズルを閉塞させることになるものである。On the other hand, a burner for supplying fuel such as pulverized coal and air to the wet furnace is mounted so as to penetrate the water cooling wall, and the mounting portion is cooled from both the water cooling type burner and the water cooling wall. That is, the degree of cooling of the slag is large near the burner mounting portion as a starting point, and the slag solidifies and grows. When the slag grows to the burner tip, the burner nozzle is closed.
【００１０】本発明はこのようなノズル閉塞等の発生を
なくし、長期に亘って安定して作動するバーナを提供す
ることを課題とするものである。An object of the present invention is to provide a burner that can operate stably for a long period of time by eliminating such nozzle blockage.
【００１１】[0011]
【課題を解決するための手段】本発明は前記課題を解決
するべくなされたもので、内側管と外側管で区画して微
粉炭等の燃料通路と空気通路を形成し、且つ同外側管を
水冷構造としたバーナにおいて、前記外側管の先端に高
圧蒸気またはＮ2 ガス等の不活性ガスを噴出するスリッ
トを設け、同スリットに前記不活性ガスを導くガス供給
配管を前記外側管に設けた湿式炉用バーナを提供し、同
湿式炉用バーナを炉壁に取付けて稼動させた際、このバ
ーナのノズル先端に付着し、成長する固化スラグに対し
て不活性ガスをスリットから噴射し衝突させてこれを破
壊し、除去させるようにしたものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and comprises an inner pipe and an outer pipe which define a fuel passage for pulverized coal or the like and an air passage, and the outer pipe is formed. In a burner having a water-cooled structure, a slit for ejecting an inert gas such as high-pressure steam or N 2 gas is provided at a tip of the outer tube, and a gas supply pipe for guiding the inert gas to the slit is provided in the outer tube. We provide a burner for a wet furnace, and when the burner for a wet furnace is mounted on the furnace wall and operated, when the burner sticks to the tip of the nozzle and the solidified slag that grows is injected from the slit with an inert gas, it collides with it. To destroy and remove it.
【００１２】また、本発明は、内側管と外側管で区画し
て微粉炭等の燃料通路と空気通路を形成し、且つ同外側
管を水冷構造としたバーナにおいて、前記空気通路を更
に中央管で仕切って前記外側管との間に高圧蒸気または
Ｎ2 ガス等の不活性ガス通路を区画し、同中央管の先端
に放射状に拡がるバッフルを設けた湿式炉用バーナを提
供し、同湿式炉用バーナを炉壁に取付けて稼動させた
際、このバーナのノズル先端に付着し、成長する固化ス
ラグに対して不活性ガスを、バッフルを経て噴射し衝突
させ、前記同様にこれを破壊し、除去させるようにした
ものである。The present invention also provides a burner in which a fuel passage for pulverized coal or the like and an air passage are formed by being divided by an inner tube and an outer tube, and the outer tube is provided with a water-cooled structure. To provide a burner for a wet furnace provided with a baffle extending radially at the tip of the central pipe, by partitioning an inert gas passage such as high-pressure steam or N 2 gas between the outer pipe and the outer pipe. When the burner was attached to the furnace wall and operated, the inert gas adhered to the nozzle tip of the burner and solidified slag that grew was injected through a baffle and collided, and destroyed as described above. It is intended to be removed.
【００１３】[0013]
【発明の実施の形態】本発明の第１の実施の形態を図１
及び図３に基づいて説明する。なお図１において（ａ）
は水冷型バーナを正面から、（ｂ）は（ａ）のＢ−Ｂ矢
視断面、（ｃ）は（ｂ）のＣ−Ｃ矢視断面を示してい
る。FIG. 1 shows a first embodiment of the present invention.
A description will be given based on FIG. In FIG. 1, (a)
FIG. 3B is a front view of the water-cooled burner, FIG. 4B is a cross-sectional view taken along the line BB in FIG. 4A, and FIG.
【００１４】１は中心に配置された燃料供給管で、その
内部に微粉炭等の燃料通路に当たる燃料と空気の混合気
通路７を形成している。２は水冷管で前記燃料供給管１
と共にその間に空気通路８を区画し、形成している。Reference numeral 1 denotes a fuel supply pipe disposed at the center of the fuel supply pipe. The fuel supply pipe 1 forms a mixture passage 7 of fuel and air corresponding to a fuel passage such as pulverized coal. 2 is a water-cooled pipe,
At the same time, an air passage 8 is defined and formed therebetween.
【００１５】即ち、同空気通路８はその外方に設けた外
側管に当たる水冷管２と、内方に設けた内側管に当たる
燃料供給管１とにより区画、形成されており、また、中
心位置にある微粉炭等の燃料と空気の混合気通路７は、
前記内側管に当たる燃料供給管１それ自身により区画、
形成されている。That is, the air passage 8 is divided and formed by the water cooling pipe 2 provided on the outside and the fuel supply pipe 1 provided on the inside and the water cooling pipe 2 provided on the outside. An air-fuel mixture passage 7 of a fuel such as pulverized coal and the like is
Partitioned by the fuel supply pipe 1 itself, which corresponds to the inner pipe,
Is formed.
【００１６】そして前記外側管に当たる水冷管２は、そ
の内部に仕切管６を配置した二重管構造とし、先端部近
傍で折り返して対向方向に流れる往復路となる冷却水通
路１０を形成している。The water-cooling pipe 2 corresponding to the outer pipe has a double-pipe structure in which a partition pipe 6 is disposed inside, and forms a cooling water passage 10 which is turned up and down in the vicinity of the distal end and becomes a reciprocating path flowing in the opposite direction. I have.
【００１７】３は高圧蒸気又はＮ2 ガス等の不活性ガス
を供給するガス導入管で、内部にガス通路９を形成し、
前記水冷管２の内部で、前記仕切管６と一体化となるよ
うな位置に先端部近傍まで軸方向に延びて配置されてい
る。Reference numeral 3 denotes a gas introduction pipe for supplying an inert gas such as high-pressure steam or N 2 gas, and has a gas passage 9 formed therein.
Inside the water-cooled tube 2, it is arranged at a position where it is integrated with the partition tube 6 so as to extend in the axial direction up to the vicinity of the distal end.
【００１８】４は環状のガス通路で、前記水冷管２の先
端内部に配設され、前記ガス導入管３に連通して、同ガ
ス導入管３で供給される高圧蒸気又はＮ2 ガス等の不活
性ガスを水冷管２の周方向に向けて供給するように構成
されている。Reference numeral 4 denotes an annular gas passage, which is disposed inside the distal end of the water cooling pipe 2 and communicates with the gas introduction pipe 3 to supply high-pressure steam or N 2 gas supplied from the gas introduction pipe 3. It is configured to supply the inert gas in the circumferential direction of the water cooling tube 2.
【００１９】５は前記不活性ガスを噴射する開孔スリッ
トで、前記水冷管２の先端面に設けられ、その上流側は
前記環状のガス通路４に連通して構成されている。そし
てこの開孔スリット５は図１（ａ）に明示されるよう
に、周方向で複数個に分けられている。Reference numeral 5 denotes an opening slit for injecting the inert gas, which is provided at the distal end surface of the water cooling pipe 2 and whose upstream side communicates with the annular gas passage 4. This opening slit 5 is divided into a plurality in the circumferential direction as clearly shown in FIG.
【００２０】このように構成された本実施の形態のもの
では、図１（ｂ）に示すように、燃料となる微粉炭等は
実線矢印Ｆのように混合気通路７に供給され、太線矢印
Ａのように空気通路８に供給される空気共々図示省略し
た炉内へ供給される。In the thus constructed embodiment, as shown in FIG. 1 (b), pulverized coal or the like serving as fuel is supplied to the mixture passage 7 as indicated by a solid arrow F, As shown at A, the air supplied to the air passage 8 is also supplied into a furnace (not shown).
【００２１】また、冷却水通路１０内には破線矢印Ｗで
示すように冷却水が往復路を流れて、前記空気通路８を
流れる空気を冷却している。In the cooling water passage 10, cooling water flows through the reciprocating path as shown by a dashed arrow W to cool the air flowing through the air passage 8.
【００２２】一方、一点破線矢印Ｇで示すようにガス通
路９を流れるべき不活性ガスは、常時ここに供給されて
流れているというものではなく、一定の条件が整ったと
きに供給されるものである。On the other hand, as shown by the dashed-dotted arrow G, the inert gas to flow through the gas passage 9 is not always supplied and flowing here, but is supplied when certain conditions are satisfied. It is.
【００２３】即ち、前記したように混合気通路７と空気
通路８を経て燃料、空気が炉内に供給され一定時間運転
が続くと、図４により従来の技術として説明したよう
に、炉壁に、そしてノズル近傍からノズル噴射口へとス
ラグが付着し、厚く成長して来る。なおこの様相につい
ては、先に説明済につき重複を避けるため省略する。That is, as described above, when fuel and air are supplied into the furnace through the mixture passage 7 and the air passage 8 and the operation is continued for a certain period of time, as described with reference to FIG. The slag adheres from the vicinity of the nozzle to the nozzle orifice and grows thickly. Note that this aspect has already been described and will not be described to avoid duplication.
【００２４】バーナノズル先端に付着し、成長した固化
スラグの状態については、特に図示しないが適宜の手
段、例えばバーナの圧損の測定等によりそれを判断し、
同測定値があらかじめ定めた一定の値となった時に、前
記ガス通路９に高圧蒸気又はＮ 2 ガス等の不活性ガスを
供給する。The solidification that has adhered to the tip of the burner nozzle and has grown
Regarding the condition of the slag, although not particularly shown,
Step, for example, by measuring the burner pressure drop,
When the measured value reaches a predetermined value,
High-pressure steam or N TwoInert gas such as gas
Supply.
【００２５】同不活性ガスは環状のガス通路４に導びか
れ、周方向に複数区分されて設けられた開孔スリット５
から一斉に炉内へ噴射され、図４に示すような付着成長
した固化スラグ４５に衝突し、同不活性ガスの運動量に
より図３に破砕片４６として示すようにこの固化スラグ
を破壊して除去し、これによりバーナノズルの作動を安
定状態に復帰させるものである。The inert gas is guided to an annular gas passage 4 and is provided with a plurality of aperture slits 5 provided in the circumferential direction.
From the furnace, and collides with the solidified slag 45 that has adhered and grown as shown in FIG. 4. The solid slag is broken and removed by the momentum of the inert gas as shown in FIG. Thus, the operation of the burner nozzle is returned to a stable state.
【００２６】なお、メタル温度が低い水冷管へのスラグ
の付着力は、本質的に小さいものであり、このように水
冷構造のバーナに付着し固化するスラグはガス噴射圧で
十分に除去できるものである。The adhesion of the slag to the water-cooled pipe with a low metal temperature is essentially small, and the slag that adheres to the water-cooled burner and solidifies can be sufficiently removed by gas injection pressure. It is.
【００２７】また、前記固化スラグの破壊、除去は、前
記したように固化スラグの成長を検知して行うというだ
けではなく、定期的にこれを行い、固化スラグの成長を
防止するようにしてもよいことは勿論である。In addition, the destruction and removal of the solidified slag is performed not only by detecting the growth of the solidified slag as described above but also periodically to prevent the growth of the solidified slag. Of course it is good.
【００２８】本発明の第２の実施の形態を図２に基づき
説明する。なお、前記第１の実施の形態と同一又は同等
の部位については、図中同一の符号を付して示し、重複
する説明は省略する。A second embodiment of the present invention will be described with reference to FIG. Note that the same or equivalent parts as those in the first embodiment are denoted by the same reference numerals in the drawings, and redundant description will be omitted.
【００２９】即ち、前記第１の実施の形態では、不活性
ガスを導き、これを炉内に向けて噴射するために、冷却
水通路１０内のガス導入管３、ノズル先端の環状のガス
通路４、及び不活性ガスを噴出する開孔スリット５等の
構成としていたのに対し、同第２の実施の形態において
は、外側管である水冷管２と、内側管である燃料供給管
１とで区画した空気通路８を中央管１３で仕切って、同
空気通路８の外側に不活性ガス通路１４を形成すると共
に、同中央管１３の先端に放射状に拡がるバッフル１５
を設け、ここに円周方向で連続した環状のガス噴射開口
１６を形成したものである。That is, in the first embodiment, the gas introduction pipe 3 in the cooling water passage 10 and the annular gas passage at the tip of the nozzle are provided to guide the inert gas and to inject it into the furnace. 4 and an opening slit 5 for ejecting an inert gas, the second embodiment has a water cooling pipe 2 as an outer pipe and a fuel supply pipe 1 as an inner pipe. The air passage 8 is divided by a central pipe 13 to form an inert gas passage 14 outside the air passage 8 and a baffle 15 extending radially at the tip of the central pipe 13.
In which a circular gas injection opening 16 continuous in the circumferential direction is formed.
【００３０】即ち本実施の形態では前記中央管１３で区
画した不活性ガス通路１４、バッフル１５を経てガス噴
射開口１６から高圧蒸気又はＮ2 ガス等の不活性ガスを
固化スラグに向けて噴射し、これを破壊して除去するよ
うにしたものである。That is, in the present embodiment, an inert gas such as high-pressure steam or N 2 gas is injected toward the solidified slag from the gas injection opening 16 through the inert gas passage 14 and the baffle 15 defined by the central pipe 13. This is destroyed and removed.
【００３１】本実施の形態によればこのような簡便な構
成で容易かつ確実に固化スラグを破壊し、除去すること
ができるものである。なお、その余の構成及び作用、効
果は前記第１の実施の形態のものと実質的に同等であ
る。According to the present embodiment, the solidified slag can be easily and reliably destroyed and removed with such a simple structure. The remaining configuration, operation, and effect are substantially the same as those of the first embodiment.
【００３２】以上、本発明を図示の実施の形態について
説明したが、本発明はかかる実施の形態に限定されず、
本発明の範囲内でその具体的構造に種々の変更を加えて
よいことはいうまでもない。Although the present invention has been described with reference to the illustrated embodiments, the present invention is not limited to such embodiments.
It goes without saying that various changes may be made to the specific structure within the scope of the present invention.
【００３３】[0033]
【発明の効果】以上本発明によれば、バーナノズル先端
部まで成長した固化スラグに対して不活性ガスの噴射に
よりこれを簡単に除去することができ、湿式炉用バーナ
として最適に運用できる安定した信頼性の高いものを得
ることができたものである。As described above, according to the present invention, the solidified slag grown to the tip of the burner nozzle can be easily removed by injecting an inert gas, and the stable slag can be optimally operated as a burner for a wet furnace. A highly reliable product could be obtained.
【００３４】また請求項２の発明によれば、極めて簡単
な設備、構造により前記同様に固化スラグを簡単に除去
して、湿式炉バーナの稼動の安定性を確保し、信頼性の
高いバーナを得ることができたものである。According to the second aspect of the present invention, the solidified slag is easily removed by the very simple equipment and structure as described above, and the operation stability of the wet furnace burner is secured, and a highly reliable burner is provided. That is what we could get.
【図１】本発明の第１の実施の形態に係るバーナ構造を
示し、（ａ）はその正面、（ｂ）は（ａ）のＢ−Ｂ矢視
断面、（ｃ）は（ｂ）のＣ−Ｃ矢視断面から見た構造
図。1A and 1B show a burner structure according to a first embodiment of the present invention, wherein FIG. 1A is a front view thereof, FIG. 1B is a cross-sectional view taken along the line BB of FIG. FIG. 3 is a structural view as viewed from a cross section taken along a line CC.
【図２】本発明の第２の実施の形態に係るバーナ構造を
示し、（ａ）はその正面、（ｂ）は（ａ）のＤ−Ｄ矢視
断面、（ｃ）は（ｂ）のＥ−Ｅ矢視断面から見た構造
図。FIGS. 2A and 2B show a burner structure according to a second embodiment of the present invention, wherein FIG. 2A is a front view thereof, FIG. 2B is a cross-sectional view taken along line D-D of FIG. FIG. 2 is a structural view as viewed from a cross section taken along line EE.
【図３】本発明の第１、第２の実施の形態における固化
スラグの除去動作状況を示し、（ａ）は側面から（ｂ）
は正面から見た説明図。FIGS. 3A and 3B show the operation of removing solidified slag in the first and second embodiments of the present invention, wherein FIG. 3A is a side view and FIG.
Is an explanatory diagram viewed from the front.
【図４】バーナノズルに対する固化スラグの成長状況を
示し、（ａ）は側面から（ｂ）は正面から見た説明図。FIGS. 4A and 4B are explanatory diagrams showing a growth state of solidified slag with respect to a burner nozzle, where FIG. 4A is a side view and FIG.
【図５】従来のバーナを示し、（ａ）はその正面、
（ｂ）は（ａ）のＧ−Ｇ矢視断面、（ｃ）は（ｂ）のＨ
−Ｈ矢視断面から見た構造図。FIG. 5 shows a conventional burner, (a) shows its front,
(B) is a cross section taken along the line GG of (a), (c) is H of (b).
FIG. 2 is a structural view as viewed from a cross section taken along arrow H.
１ 燃料供給管 ２ 水冷管 ３ ガス導入管 ４ ガス通路 ５ 開孔スリット ６ 仕切管 ７ 混合気通路 ８ 空気通路 ９ ガス通路 １０ 冷却水通路 １３ 中央管 １４ ガス通路 １５ バッフル １６ ガス噴射開口 ４１ 水冷管 ４２ シールボックス ４３ バーナ ４４ 流動スラグ ４５ 固化スラグ ４６ スラグ破砕片 DESCRIPTION OF SYMBOLS 1 Fuel supply pipe 2 Water cooling pipe 3 Gas introduction pipe 4 Gas passage 5 Opening slit 6 Partition pipe 7 Mixture passage 8 Air passage 9 Gas passage 10 Cooling water passage 13 Central pipe 14 Gas passage 15 Baffle 16 Gas injection opening 41 Water cooling pipe 42 Seal box 43 Burner 44 Fluid slag 45 Solidified slag 46 Slag crushed pieces
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−38313（ＪＰ，Ａ) 特開 平２−206687（ＪＰ，Ａ) 特開 平１−268809（ＪＰ，Ａ) 実開 平３−30013（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F23D 1/00 F23C 11/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-38313 (JP, A) JP-A-2-206687 (JP, A) JP-A-1-268809 (JP, A) 30013 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F23D 1/00 F23C 11/00
Claims (2)
料通路と空気通路を形成し、且つ同外側管を水冷構造と
したバーナにおいて、前記外側管の先端に高圧蒸気また
はＮ2 ガス等の不活性ガスを噴出するスリットを設け、
同スリットに前記不活性ガスを導くガス供給配管を前記
外側管に設けたことを特徴とする湿式炉用バーナ。1. A and partitioned by the inner tube and outer tube to form a fuel passage and an air passage, such as pulverized coal, and the burners of the same outer tube was cooled structure, high pressure steam or N 2 at the tip of said outer tube Provide a slit to eject inert gas such as gas,
A burner for a wet furnace, wherein a gas supply pipe for guiding the inert gas to the slit is provided in the outer pipe.
料通路と空気通路を形成し、且つ同外側管を水冷構造と
したバーナにおいて、前記空気通路を更に中央管で仕切
って前記外側管との間に高圧蒸気またはＮ2 ガス等の不
活性ガス通路を区画し、同中央管の先端に放射状に拡が
るバッフルを設けたことを特徴とする湿式炉用バーナ。2. A burner in which a fuel passage for pulverized coal and the like and an air passage are formed by being partitioned by an inner tube and an outer tube, and wherein the outer tube is water-cooled, the air passage is further partitioned by a central tube. wet furnace burners partition the inert gas passage, such as high pressure steam or N 2 gas, characterized in that a baffle extending radially to the distal end of the central tube between the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07996796A JP3349337B2 (en) | 1996-04-02 | 1996-04-02 | Burner for wet furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07996796A JP3349337B2 (en) | 1996-04-02 | 1996-04-02 | Burner for wet furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09273715A JPH09273715A (en) | 1997-10-21 |
| JP3349337B2 true JP3349337B2 (en) | 2002-11-25 |
Family
ID=13705097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07996796A Expired - Fee Related JP3349337B2 (en) | 1996-04-02 | 1996-04-02 | Burner for wet furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3349337B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100906379B1 (en) * | 2008-03-25 | 2009-07-07 | 한국남동발전 주식회사 | The boiler burner having the nozzle for removing burned particles |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002130613A (en) * | 2000-10-20 | 2002-05-09 | Taiheiyo Cement Corp | Combustion nozzle and method for combustion of combustible synthetic resin in which the nozzle is used |
| JP5425544B2 (en) * | 2009-07-01 | 2014-02-26 | 電源開発株式会社 | Burner |
| CN102706167B (en) * | 2012-06-19 | 2014-06-18 | 中国恩菲工程技术有限公司 | Charging opening device for metallurgical furnace |
| CN108026596A (en) * | 2015-07-27 | 2018-05-11 | 株式会社Posco | The fine coal device for blowing and its blowing method of smelting furnace |
-
1996
- 1996-04-02 JP JP07996796A patent/JP3349337B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100906379B1 (en) * | 2008-03-25 | 2009-07-07 | 한국남동발전 주식회사 | The boiler burner having the nozzle for removing burned particles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09273715A (en) | 1997-10-21 |
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