JPH0861637A - Burner in sand for fluidized bed incinerator - Google Patents
Burner in sand for fluidized bed incineratorInfo
- Publication number
- JPH0861637A JPH0861637A JP19827994A JP19827994A JPH0861637A JP H0861637 A JPH0861637 A JP H0861637A JP 19827994 A JP19827994 A JP 19827994A JP 19827994 A JP19827994 A JP 19827994A JP H0861637 A JPH0861637 A JP H0861637A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- burner
- fluidized bed
- fluidized
- bed incinerator
- 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
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、都市ごみ又は産業廃棄
物等の被焼却物を焼却する流動床式焼却炉に係り、特に
該流動床式焼却炉の砂中バーナの改良に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluidized bed incinerator for incinerating incinerators such as municipal waste or industrial waste, and more particularly to improvement of a sand burner in the fluidized bed incinerator. .
【０００２】[0002]
【従来の技術】従来、燃焼バーナとしては、例えば燃料
ガス化装置において該燃料ガス化装置の燃焼バーナのノ
ズルを引き抜き可能な装置を備えたものが知られている
（特開昭６２−２２５８０９号公報）。2. Description of the Related Art Conventionally, as a combustion burner, for example, a fuel gasifier equipped with a device capable of withdrawing a nozzle of the combustion burner of the fuel gasifier is known (Japanese Patent Laid-Open No. 225809/1987). Gazette).
【０００３】一方図４は、従来技術に係る流動床式焼却
炉用砂中バーナ１００を示す断面図である。従来の砂中
バーナ１０１は、流動床式焼却炉のケーシング１０４の
内側に耐火材１０５を設け、更にその内側に流動砂１０
６が充填されている。この流動砂１０６を流動させ、且
つ高温に加熱することで都市ごみ又は産業廃棄物等の被
焼却物を焼却するものである。流動床式焼却炉の運転中
は、流動砂１０６の温度が低下し燃焼が不良にならない
様に、流動砂１０６の中に燃料油等の助燃用燃料を噴霧
させるために、ケーシング１０４、耐火材１０５の部分
にフランジ１１０を有するスリーブ１１１を取り付け、
その内側にフランジ１０７とボールバルブ１０８を有す
るガイドスリーブ１０９を配置し、更に、その内側に砂
中バーナ１０１を設置している。On the other hand, FIG. 4 is a sectional view showing a sand-bed burner 100 for a fluidized bed type incinerator according to the prior art. The conventional sand burner 101 is provided with a refractory material 105 inside a casing 104 of a fluidized bed incinerator, and further the inside of the fluid sand 10
6 is filled. The fluidized sand 106 is fluidized and heated to a high temperature to incinerate incineration objects such as municipal waste or industrial waste. During operation of the fluidized bed type incinerator, the casing 104 and the refractory material are sprayed in order to spray auxiliary fuel such as fuel oil into the fluidized sand 106 so that the temperature of the fluidized sand 106 does not decrease and combustion does not become defective. Attach the sleeve 111 having the flange 110 to the portion 105,
A guide sleeve 109 having a flange 107 and a ball valve 108 is arranged inside thereof, and further, an in-sand burner 101 is arranged inside thereof.
【０００４】この砂中バーナ１０１には、燃料油１０２
と噴霧エアー１０３をその一端から供給し先端より流動
砂１０６の内部に燃料油１０２と噴霧エアー１０３の混
合気を噴射させる。一方、流動床式焼却炉の運転中は、
砂中バーナ１０１及びガイドスリーブ１０９の焼損防止
及び流動砂１０６の流動床式焼却炉外への噴出を防止す
るためシールエアー１１２、シールエアー１１４及び噴
霧エアー１０３を常に流し、ガイドスリーブ１０９と砂
中バーナ１０１の間隙からはシールエアー１１５を、外
側スリーブ１１１と内側スリーブ１０９の間隙からはシ
ールエアー１１３を、各々噴射している。流動砂１０６
の温度低下の信号で燃料油１０２を供給して燃焼させ、
流動砂１０６の温度を上昇させて温度が正常になった時
点で燃料油１０２の供給を停止する様にシステムを組ん
でいる。しかし流動砂１０６の温度が低下する頻度は少
なく、その間シールエアー１１２、シールエアー１１４
及び噴霧エアー１０３を供給し続けるので、その消費量
も多く、且つガイドスリーブ１０９及び砂中バーナ１０
１は高温の流動砂１０６の内に常時曝されている状態と
なっている。The sand burner 101 has a fuel oil 102
The spray air 103 is supplied from one end thereof, and a mixture of the fuel oil 102 and the spray air 103 is injected from the tip into the fluidized sand 106. On the other hand, during operation of the fluidized bed incinerator,
In order to prevent the burner 101 in the sand and the guide sleeve 109 from being burnt out and to prevent the fluidized sand 106 from jetting out of the fluidized bed incinerator, the seal air 112, the seal air 114, and the spray air 103 are constantly flowed to guide the guide sleeve 109 and the sand. Seal air 115 is jetted from the gap of the burner 101, and seal air 113 is jetted from the gap of the outer sleeve 111 and the inner sleeve 109. Fluidized sand 106
The fuel oil 102 is supplied and burned by the signal of the temperature drop of
The system is constructed so that the temperature of the fluidized sand 106 is raised and the supply of the fuel oil 102 is stopped when the temperature becomes normal. However, the temperature of the fluidized sand 106 is less likely to decrease, and the sealing air 112 and the sealing air 114 are in the meantime.
Since the spray air 103 is continuously supplied, the consumption amount is large, and the guide sleeve 109 and the sand burner 10 are used.
No. 1 is always exposed to the high temperature fluidized sand 106.
【０００５】[0005]
【発明が解決しようとする課題】上記前者における燃焼
バーナは、水冷壁で形成されたガス化炉本体を圧力容器
に内蔵させてなるガス化装置に使用する燃焼バーナに関
するもので、本発明で対象とする流動床式焼却炉の砂中
バーナとは構成が異なるものである。The combustion burner in the former case relates to a combustion burner used in a gasification apparatus in which a gasification furnace main body formed of a water cooling wall is built in a pressure vessel. It has a different structure from the sand burner of the fluidized bed incinerator.
【０００６】又、上記流動床式焼却炉用砂中バーナ１０
０は、焼損防止対策としてシールエアー１１２、１１４
及び噴霧エアー１０３を常時流しているが、砂中バーナ
１０１及びガイドスリーブ１０９の先端側は、流動砂１
０６の流動による摩耗及び高温による焼損或いは酸化雰
囲気による腐触等で脱落する恐れがあり、脱落した場合
には、その都度流動床式焼却炉を停止し補修するという
問題があり、又常時使用するシールエアー１１２、１１
４及び噴霧エアー１０３の使用量も多いという問題もあ
った。In addition, the above-mentioned sand burner 10 for a fluidized bed type incinerator is used.
0 is seal air 112, 114 as a burnout prevention measure.
While the spray air 103 is constantly flowing, the front end side of the in-sand burner 101 and the guide sleeve 109 is
There is a possibility that it will fall off due to wear due to fluidity of 06 and burning due to high temperature or corrosion due to oxidizing atmosphere, and if it falls off, there is a problem that the fluidized bed incinerator will be stopped and repaired each time, and it will always be used. Seal air 112, 11
4 and the amount of spray air 103 used was also large.
【０００７】本発明の目的は、上記従来技術の課題を解
決し、摩耗や焼損、腐食等による脱落の恐れが少なく長
期間の連続運転が可能な寿命の長い、且つ噴霧媒体及び
冷却気体の使用量が少なく、保守の容易な流動床式焼却
炉用砂中バーナを提供することである。The object of the present invention is to solve the above-mentioned problems of the prior art and to use a spraying medium and a cooling gas which have a long life and are capable of continuous operation for a long period of time with less risk of falling off due to wear, burnout, corrosion and the like. (EN) It is an object to provide an in-sand burner for a fluidized bed incinerator, which has a small amount and is easy to maintain.
【０００８】[0008]
【課題を解決するための手段】上記目的は、被焼却物を
焼却する流動床式焼却炉の砂中バーナと、この砂中バー
ナの外側に設けた内側スリーブと、これら砂中バーナ及
び内側スリーブを流動床式焼却炉の内部に導入する外側
スリーブとを有し、これら砂中バーナ及び内側スリーブ
の冷却及び焼損防止を行なう冷却気体の供給口を内側ス
リーブ及び外側スリーブの基端側に形成した流動床式焼
却炉用砂中バーナにおいて、砂中バーナは、流動砂中に
出没可能な第１の出没操作手段を備えたものである。そ
して砂中バーナ及び内側スリーブを流動砂中に出没可能
な第２の出没操作手段を備え、内側スリーブの先端側
に、砂中バーナの第１の出没操作手段による出没によっ
て開閉可能なくさび形状に形成した蓋を設けたことであ
る。SUMMARY OF THE INVENTION The above-mentioned object is to provide an in-sand burner of a fluidized bed incinerator for incinerating an object to be incinerated, an inner sleeve provided outside the in-sand burner, and these in-sand burner and inner sleeve. And an outer sleeve for introducing into the fluidized bed incinerator, and a cooling gas supply port for cooling the burner in the sand and the inner sleeve and for preventing burnout is formed on the proximal end side of the inner sleeve and the outer sleeve. In the in-sand burner for a fluidized bed incinerator, the in-sand burner is provided with a first retracting operation means capable of retracting in and out of the fluidized sand. Further, a second retracting operation means capable of retracting the in-sand burner and the inner sleeve into and out of the fluidized sand is provided, and a wedge shape which can be opened and closed by retracting by the first retracting operation means of the in-sand burner on the tip side of the inner sleeve. That is, the formed lid is provided.
【０００９】[0009]
【作用】本発明の流動床式焼却炉用砂中バーナは、流動
砂中に出没可能な第１の出没操作手段を備えたので、流
動砂の温度が低下した時のみ、その信号を受け自動的に
流動床式焼却炉内に挿入され燃料流体を噴射し、流動砂
の温度を上昇させる。流動砂の温度が適正な温度に上昇
したら自動的に流動砂から流動床式焼却炉の外側方向に
没するように作動する。これにより砂中バーナは、高温
で且つ流動している流動砂に曝されている時間が短かく
なるので、砂中バーナの先端側は焼損したり摩耗するこ
とがない。The sand-bed burner for a fluidized bed incinerator according to the present invention is provided with the first retracting operation means capable of retracting into and out of the fluidized sand, so that the signal is automatically received only when the temperature of the fluidized sand decreases. It is inserted into the fluidized bed type incinerator and the fuel fluid is injected to raise the temperature of the fluidized sand. When the temperature of the fluidized sand rises to an appropriate temperature, it automatically operates so as to sink from the fluidized sand to the outside of the fluidized bed incinerator. As a result, the in-sand burner is exposed to high temperature and fluidized sand for a short period of time, so that the tip side of the in-sand burner is not burned or worn.
【００１０】更に、砂中バーナ及び内側スリーブを流動
砂中に出没可能な第２の出没操作手段を備えたので、上
記作用に加え、砂中バーナは、内側スリーブに保護され
つつ流動砂に出没することが出来、砂中バーナの流動砂
による無用な焼損と摩耗を防止することが出来ると共
に、砂中バーナの流動砂中への出没距離が大きくとれ
る。 そして、内側スリーブの先端側に、砂中バーナの
第１の出没操作手段による出没によって開閉可能なくさ
び形状に形成した蓋を設けたので、砂中バーナ及び内側
スリーブが流動砂中に突出した際に、砂中バーナの先端
側から基端側にかけた部分が位置する内側スリーブの内
部に流動砂が侵入しない。又内側スリーブは、流動砂中
に突出するくさび形状の蓋によって、抵抗なく突出する
ことが出来ると共に、砂中バーナも、砂中バーナの第１
の出没操作手段によって内側スリーブのくさび形状の蓋
を突き上げ、抵抗なく突出することが出来る。Further, since the in-sand burner and the inner sleeve are provided with the second retracting operation means capable of retracting in and out of the fluidized sand, the in-sand burner appears and retracts in the fluidized sand while being protected by the inner sleeve. It is possible to prevent unnecessary burnout and wear of the in-sand burner due to the fluidized sand, and a large distance for the in-sand burner to appear in and out of the fluidized sand can be obtained. Further, a wedge-shaped lid that can be opened and closed by the first retracting operation means of the in-sand burner is provided on the tip side of the inner sleeve, so that when the in-sand burner and the inner sleeve protrude into the fluidized sand. Moreover, the fluidized sand does not enter the inside of the inner sleeve where the portion extending from the tip end side to the base end side of the sand burner is located. Further, the inner sleeve can be projected without resistance by the wedge-shaped lid projecting into the fluidized sand, and the in-sand burner is the first in-sand burner.
The wedge-shaped lid of the inner sleeve can be pushed up by the projecting / retracting operation means and can be projected without resistance.
【００１１】[0011]
【実施例】本発明の流動床式焼却炉用砂中バーナの実施
例を図面に基づいて説明する。図１は本発明に係る流動
床式焼却炉用砂中バーナの一実施例を示し、砂中バーナ
及び内側スリーブが流動床式焼却炉から没した状態の断
面図、図２は図１と同じ実施例の流動床式焼却炉用砂中
バーナを示し、図１の状態から砂中バーナ及び内側スリ
ーブが流動砂中に突き出た状態の断面図、図３は図１と
同じ実施例の流動床式焼却炉用砂中バーナを示し、図２
の状態から砂中バーナが流動砂中に突き出た状態の断面
図、を各々示す。EXAMPLE An example of the in-sand burner for a fluidized bed type incinerator according to the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of an in-sand burner for a fluidized bed incinerator according to the present invention, a sectional view of a state in which the in-sand burner and the inner sleeve are submerged from the fluidized bed incinerator, and FIG. 2 is the same as FIG. FIG. 3 is a cross-sectional view showing an in-sand burner for a fluidized bed incinerator of an example, in which the in-sand burner and the inner sleeve protrude into the fluidized sand from the state of FIG. 1, and FIG. 3 is a fluidized bed of the same example as FIG. 1. Fig. 2 shows an in-sand burner for an incinerator.
FIG. 4 is a cross-sectional view of the state in which the burner in sand protrudes into the fluidized sand from the state of FIG.
【００１２】図１に示すように、本実施例の流動床式焼
却炉用砂中バーナ１は、基端側１１から供給した燃料流
体である燃料油１５と噴霧媒体である噴霧エアー１６を
先端側１２から高温に加熱した流動する流動砂７中に噴
射し、被焼却物を焼却する流動床式焼却炉３の砂中バー
ナ１０と、この砂中バーナ１０の先端側１２から基端側
１１にかけて砂中バーナ１０の外側に設けた内側スリー
ブであるガイドスリーブ２１と、流動床式焼却炉３の側
壁５を貫通し砂中バーナ１０及びガイドスリーブ２１を
流動床式焼却炉３の内部に導入する外側スリーブ３７と
を有している。そして、砂中バーナ１０及びガイドスリ
ーブ２１の冷却及び焼損防止を行なう冷却気体であるシ
ールエアー３１の供給口３１ａをガイドスリーブ２１の
基端側２２に形成し、ガイドスリーブ２１の冷却及び焼
損防止を行なう冷却気体であるシールエアー４４の供給
口４４ａを外側スリーブ３７の基端側３８に形成した流
動床式焼却炉用砂中バーナ１において、砂中バーナ１０
は、流動砂７中に出没可能な第１の出没操作手段１８を
備えたものである。As shown in FIG. 1, the in-sand burner 1 for a fluidized bed type incinerator according to the present embodiment is provided with a fuel oil 15 which is a fuel fluid supplied from a base end 11 and a spray air 16 which is a spray medium. The in-sand burner 10 of the fluidized bed incinerator 3 which injects from the side 12 into the fluidized sand 7 heated to a high temperature to incinerate the incineration object, and the tip side 12 to the base side 11 of the in-sand burner 10 The guide sleeve 21 which is an inner sleeve provided on the outside of the in-sand burner 10 and the side wall 5 of the fluidized bed incinerator 3 are penetrated to introduce the in-sand burner 10 and the guide sleeve 21 into the fluidized bed incinerator 3. And an outer sleeve 37 that operates. Then, a supply port 31a of the seal air 31, which is a cooling gas for cooling the burner 10 in the sand and the guide sleeve 21 and preventing burnout, is formed on the base end side 22 of the guide sleeve 21 to prevent cooling and burnout of the guide sleeve 21. In the sand burner 1 for a fluidized bed type incinerator in which the supply port 44a of the seal air 44 which is the cooling gas to be performed is formed on the base end side 38 of the outer sleeve 37, the sand burner 10
Is equipped with a first appearing / withdrawing operation means 18 capable of appearing and disappearing in the fluidized sand 7.
【００１３】更に、本実施例の流動床式焼却炉用砂中バ
ーナ１は、砂中バーナ１０及びガイドスリーブ２１を流
動砂７中に出没可能な第２の出没操作手段３３を備えて
いる。ガイドスリーブ２１の先端側２３は、砂中バーナ
１０の第１の出没操作手段１８による出没によって開閉
可能なくさび形状に形成した蓋２８を有している。Further, the in-sand burner 1 for a fluidized bed incinerator of this embodiment is provided with a second retracting operation means 33 capable of retracting the in-sand burner 10 and the guide sleeve 21 in the fluidized sand 7. The tip side 23 of the guide sleeve 21 has a lid 28 formed in a wedge shape that can be opened and closed by the retracting of the in-sand burner 10 by the first retracting operation means 18.
【００１４】更に、流動床式焼却炉３のケーシング４の
内側に耐火材６を設け、その内側に流動砂７を充填して
いる。ケーシング４と耐火材６とを貫通するように外側
スリーブ３７を設け、その基端側３８にグランドボック
ス４０、グランド４１及びグランドパッキン４２を設け
ている。このグランドボックス４０、グランド４１及び
グランドパッキン４２に支持されて外側スリーブ３７の
内側に内側スリーブであるガイドスリーブ２１を設け、
その先端側２３にくさび形状の蓋２８、この蓋２８を軸
支するヒンジ２９が設けられ、蓋の近傍にはガイドラグ
２７を取り付けられている。ガイドスリーブ２１の基端
側２２には、グランドボックス２４、グランド２５及び
グランドパッキン２６が設けられ、グランドボックス２
４と砂中バーナ１０との間には、第１の出没操作手段１
８を構成するエアーシリンダー１９とサポート２０が取
り付けられ砂中バーナ１０を出没可能にしている。グラ
ンドボックス２４はシールエアー３１を受け入れ、ガイ
ドスリーブ２１の内側に供給する様にしている。Further, a refractory material 6 is provided inside the casing 4 of the fluidized bed incinerator 3, and fluid sand 7 is filled inside the refractory material 6. An outer sleeve 37 is provided so as to penetrate the casing 4 and the refractory material 6, and a gland box 40, a gland 41, and a gland packing 42 are provided on a base end side 38 thereof. The guide sleeve 21, which is an inner sleeve, is provided inside the outer sleeve 37 supported by the gland box 40, the gland 41, and the gland packing 42.
A wedge-shaped lid 28 and a hinge 29 that pivotally supports the lid 28 are provided on the tip end side 23, and a guide lug 27 is attached near the lid. A gland box 24, a gland 25, and a gland packing 26 are provided on the base end side 22 of the guide sleeve 21.
4 between the sand burner 10 and the in-sand burner 10.
An air cylinder 19 and a support 20, which form part 8, are attached so that the sand burner 10 can be retracted. The gland box 24 receives the seal air 31 and supplies it to the inside of the guide sleeve 21.
【００１５】更に、ケーシング４とグランドボックス２
４には、第２の出没操作手段３３を構成するエアーシリ
ンダー３４とサポート３５が取り付けられ、砂中バーナ
１０及びガイドスリーブ２１を出没可能にしている。グ
ランドボックス４０はシールエア４４を受け入れガイド
スリーブ２１と外側スリーブ３７の間隙に供給してい
る。Further, the casing 4 and the ground box 2
An air cylinder 34 and a support 35, which constitute the second retracting operation means 33, are attached to the roller 4, so that the sand burner 10 and the guide sleeve 21 can retract. The gland box 40 receives the sealing air 44 and supplies it to the gap between the guide sleeve 21 and the outer sleeve 37.
【００１６】次に、本実施例の流動床式焼却炉用砂中バ
ーナ１の作用について説明する。第１図は、砂中バーナ
及び内側スリーブが流動床式焼却炉３から没した状態の
断面図である。これは砂中バーナ１０を使用しない通常
時の状態を示している。この時が流動床式焼却炉の運転
中で最も長い時間であり、シールエアー３１、シールエ
アー４４及び噴霧エアー１６を供給し流動床式焼却炉内
へ流し、砂中バーナ１０及びガイドスリーブ２１を冷却
している。流動砂７の温度が低下した場合、その信号を
受けると砂中バーナ１０を使用することになるが、噴霧
エアー１６を供給し砂中バーナ１０の先端部より噴射さ
せてガイドスリーブ２１の先端側蓋２８の隙間より噴霧
エアー１６とシールエアー３１の混合気３２を流動砂７
へ噴射させる。Next, the operation of the in-sand burner 1 for a fluidized bed type incinerator of this embodiment will be described. FIG. 1 is a cross-sectional view showing a state in which the in-sand burner and the inner sleeve are submerged from the fluidized bed incinerator 3. This shows a normal state in which the sand burner 10 is not used. This time is the longest time during the operation of the fluidized bed incinerator, and the seal air 31, the seal air 44 and the spray air 16 are supplied and flowed into the fluidized bed incinerator, and the burner 10 in sand and the guide sleeve 21 are supplied. It is cooling. When the temperature of the fluidized sand 7 is lowered, when the signal is received, the sand burner 10 is used. However, the atomizing air 16 is supplied and jetted from the tip end of the sand burner 10 to the tip side of the guide sleeve 21. A mixture 32 of the spray air 16 and the seal air 31 is passed through the gap between the lids 28 to form the fluidized sand 7
To jet to.
【００１７】次の段階は、第２図に示すように、砂中バ
ーナ１０及びガイドスリーブ２１を流動砂７中に突き出
た状態にする。第２の出没操作手段３３を構成するエア
ーシリンダー３４を作動させ砂中バーナ１０とガイドス
リーブ２１とを同時に流動床式焼却炉３内、即ち流動砂
７の中に突き出させる。ガイドスリーブ２１の先端側２
３は、くさび形状であり流動砂７の中に容易に突き出さ
せることが出来る。この状態ではまだ砂中バーナ１０は
ガイドスリーブ２１と蓋２８により保護されている。In the next step, as shown in FIG. 2, the in-sand burner 10 and the guide sleeve 21 are made to protrude into the fluidized sand 7. The air cylinder 34 constituting the second projecting / retracting operation means 33 is operated to cause the in-sand burner 10 and the guide sleeve 21 to simultaneously project into the fluidized bed incinerator 3, that is, into the fluidized sand 7. The tip side 2 of the guide sleeve 21
3 is wedge-shaped and can be easily projected into the fluidized sand 7. In this state, the sand burner 10 is still protected by the guide sleeve 21 and the lid 28.
【００１８】最後の段階は、第３図に示すように、砂中
バーナ１０が流動砂７中に突き出た状態である。第１の
出没操作手段１８を構成するエアーシリンダー１９を作
動させ、砂中バーナ１０を流動砂７中に突き出させると
蓋２８を押し上げ砂中バーナ１０の先端側１２は完全に
流動砂７の内部に入る。その後燃料油１５を供給し流動
砂７へ噴霧、燃焼させ流動砂７の温度を上昇させる。こ
の時砂中バーナ１０は噴霧エアー１６、燃料油１５及び
シールエアー３２′により冷却されている。ガイドスリ
ーブ２１もその基端側２２から供給されたシールエアー
４４が、ガイドスリーブ２１と外側スリーブ３７との間
隙を通過することによってシールエアー４５となって流
動砂７中に噴出し冷却すると共に、ガイドスリーブ２１
の中に流動砂７が侵入しないようにシールエアー３２′
により防止される。At the final stage, as shown in FIG. 3, the in-sand burner 10 is projected into the fluidized sand 7. When the air cylinder 19 that constitutes the first retracting operation means 18 is operated to project the sand burner 10 into the fluidized sand 7, the lid 28 is pushed up and the tip side 12 of the sand burner 10 is completely inside the fluidized sand 7. to go into. After that, the fuel oil 15 is supplied and sprayed on the fluidized sand 7 and burned to raise the temperature of the fluidized sand 7. At this time, the sand burner 10 is cooled by the spray air 16, the fuel oil 15, and the seal air 32 '. In the guide sleeve 21 as well, the seal air 44 supplied from the base end side 22 thereof passes through the gap between the guide sleeve 21 and the outer sleeve 37 to become the seal air 45, which is jetted into the fluidized sand 7 to be cooled. Guide sleeve 21
Seal air 32 'to prevent fluidized sand 7 from entering inside
Is prevented by.
【００１９】流動砂７の温度の上昇が完了すると、燃料
油１５の供給を停止し、砂中バーナ１０を第１の出没操
作手段１８で流動床式焼却炉の外側方向に没とさせると
共に、第２の出没操作手段３３により砂中バーナ１０及
びガイドスリーブ２１を流動床式焼却炉の外側方向に没
とさせ、第２図から第１図の状態に自動的に戻し流動砂
７の温度が低下するまでスタンバイさせておく。ガイド
スリーブ２１の先端側及び蓋２８の材質は、耐熱性の良
い材料を使用することにより、長期間の連続運転が可能
になり寿命が長くなる。When the temperature rise of the fluidized sand 7 is completed, the supply of the fuel oil 15 is stopped and the sand burner 10 is sunk in the outward direction of the fluidized bed incinerator by the first retracting operation means 18, and The burner 10 in the sand and the guide sleeve 21 are sunk in the outer direction of the fluidized bed type incinerator by the second retracting operation means 33, and the temperature of the fluidized sand 7 is automatically returned to the state of FIG. 2 to FIG. Keep it on standby until it drops. The tip end side of the guide sleeve 21 and the lid 28 are made of a material having good heat resistance, so that continuous operation for a long period of time becomes possible and the life is extended.
【００２０】[0020]
【発明の効果】本発明の砂中バーナによれば、流動砂中
に出没可能な第１の出没操作手段を備えたので、砂中バ
ーナの先端側は焼損したり摩耗することがなく、流動床
式焼却炉を停止することなく長期間の連続運転が可能に
なる。そして、砂中バーナの寿命が延びるため交換する
手間が減り部品を取り替えする費用も少なくなる。According to the in-sand burner of the present invention, since the first retracting operation means capable of retracting in and out of the fluidized sand is provided, the tip end side of the in-sand burner is not burned or worn, and flows. It enables long-term continuous operation without stopping the floor incinerator. Further, since the life of the in-sand burner is extended, the time and labor required for replacement are reduced, and the cost for replacing the parts is also reduced.
【００２１】更に、砂中バーナ及び内側スリーブを流動
砂中に出没可能な第２の出没操作手段を備えたので、上
記発明の効果に加え、砂中バーナは、内側スリーブに保
護されつつ流動砂に出没することが出来、砂中バーナの
流動砂による無用な焼損と摩耗を防止することが出来る
と共に、砂中バーナの流動砂中への出没距離が大きくと
れる。Further, since the in-sand burner and the inner sleeve are provided with the second retracting operation means capable of retracting into and out of the fluidized sand, in addition to the effects of the above invention, the in-sand burner is protected by the inner sleeve while the fluidized sand is being protected. In addition to being able to prevent unnecessary burning and wear due to the fluidized sand of the burner in the sand, the distance of the burner in the sand from and to the sand can be greatly increased.
【００２２】そして、内側スリーブの先端側に、砂中バ
ーナの第１の出没操作手段による出没によって開閉可能
なくさび形状に形成した蓋を設けたので、上記いずれか
の発明の効果に加え、砂中バーナの先端側から基端側に
かけた部分が位置する内側スリーブの内部に流動砂が侵
入しない。又内側スリーブは、くさび形状の蓋によっ
て、流動砂中に抵抗なく突出することが出来ると共に、
砂中バーナも、砂中バーナの第１の出没操作手段によっ
て内側スリーブのくさび形状の蓋を突き上げ、抵抗なく
突出することが出来る。その上、万が一砂中バーナがダ
メージを受けた場合でもガイドスリーブ先端側の蓋が閉
じている為、流動床式焼却炉運転中でも流動砂はガイド
スリーブの内部に侵入しないため砂中バーナは容易に抜
き出せ、修理又は交換ができる。A wedge-shaped lid that can be opened and closed by the first retracting operation means of the sand-burner is provided on the tip side of the inner sleeve. The fluidized sand does not enter the inside of the inner sleeve where the part extending from the tip side to the base side of the middle burner is located. Also, the inner sleeve can be projected into the fluid sand without resistance by the wedge-shaped lid,
In the sand burner, the wedge-shaped lid of the inner sleeve can be pushed up by the first protruding / retracting operation means of the sand burner and can be projected without resistance. In addition, even if the sand-burner is damaged, the lid on the tip side of the guide sleeve is closed, so even if the fluidized bed incinerator is operating, fluid sand does not enter the inside of the guide sleeve, so the sand-burner can be easily used. It can be pulled out and repaired or replaced.
【図１】本発明に係る流動床式焼却炉用砂中バーナの一
実施例を示し、砂中バーナ及び内側スリーブが流動床式
焼却炉から没した状態の断面図である。FIG. 1 is a cross-sectional view showing an embodiment of an in-sand burner for a fluidized bed incinerator according to the present invention, with the in-sand burner and the inner sleeve being submerged from the fluidized bed incinerator.
【図２】図１と同じ実施例の流動床式焼却炉用砂中バー
ナを示し、図１の状態から砂中バーナ及び内側スリーブ
が流動砂中に突き出た状態の断面図である。FIG. 2 is a cross-sectional view showing an in-sand burner for a fluidized bed incinerator according to the same embodiment as in FIG. 1, showing a state in which an in-sand burner and an inner sleeve protrude from the state of FIG. 1 into the fluidized sand.
【図３】図１と同じ実施例の流動床式焼却炉用砂中バー
ナを示し、図２の状態から砂中バーナが流動砂中に突き
出た状態の断面図である。FIG. 3 is a cross-sectional view showing an in-sand burner for a fluidized bed incinerator according to the same embodiment as in FIG. 1, showing a state where the in-sand burner projects into the fluid sand from the state of FIG.
【図４】従来技術に係る流動床式焼却炉用砂中バーナを
示す断面図である。FIG. 4 is a cross-sectional view showing an in-sand burner for a fluidized bed incinerator according to a conventional technique.
１ 流動床式焼却炉用砂中バーナ ３ 流動床式焼却炉 ５ 側壁 ７ 流動砂 １０ 砂中バーナ １１ 基端側 １２ 先端側 １５ 燃料油（燃料流体） １６ 噴霧エアー（噴霧媒体） １８ 第１の出没操作手段 ２１ ガイドスリーブ（内側スリーブ） ２２ 基端側 ２３ 先端側 ２８ 蓋 ３１ シールエアー（冷却気体） ３３ 第２の出没操作手段 ３７ 外側スリーブ ３８ 基端側 ４４ シールエアー（冷却気体） 1 Sandbed burner for fluidized bed type incinerator 3 Fluidized bed type incinerator 5 Side wall 7 Fluidized sand 10 Sandburner 11 Base end side 12 Tip side 15 Fuel oil (fuel fluid) 16 Spraying air (spraying medium) 18 First Hoisting and operating means 21 Guide sleeve (inner sleeve) 22 Base end side 23 Tip side 28 Lid 31 Seal air (cooling gas) 33 Second hoisting and operating means 37 Outer sleeve 38 Base end side 44 Seal air (cooling gas)
Claims (3)
を先端側から高温に加熱した流動する流動砂中に噴射
し、被焼却物を焼却する流動床式焼却炉の砂中バーナ
と、該砂中バーナの前記先端側から前記基端側にかけて
前記砂中バーナの外側に設けた内側スリーブと、前記流
動床式焼却炉の側壁を貫通し前記砂中バーナ及び内側ス
リーブを前記流動床式焼却炉の内部に導入する外側スリ
ーブとを有し、前記砂中バーナ及び内側スリーブの冷却
及び焼損防止を行なう冷却気体の供給口を前記内側スリ
ーブの基端側に形成し、前記内側スリーブの冷却及び焼
損防止を行なう冷却気体の供給口を前記外側スリーブの
基端側に形成した流動床式焼却炉用砂中バーナにおい
て、前記砂中バーナは、前記流動砂中に出没可能な第１
の出没操作手段を備えたことを特徴とする流動床式焼却
炉用砂中バーナ。1. A burner in sand of a fluidized bed incinerator for injecting a fuel fluid and a spray medium supplied from a base end side into flowing fluidized sand heated to a high temperature from a tip end side to incinerate an incineration object, The inner sleeve provided outside the sand burner from the tip end side to the base end side of the sand burner and the sand burner and the inner sleeve that penetrate the side wall of the fluidized bed incinerator are the fluidized bed type. An outer sleeve introduced into the incinerator, and a cooling gas supply port for cooling the burner in the sand and the inner sleeve and for preventing burnout are formed on the base end side of the inner sleeve to cool the inner sleeve. And a sand-bed burner for a fluidized bed incinerator in which a cooling gas supply port for preventing burnout is formed on a base end side of the outer sleeve, wherein the sand-burner is a first sandable burner that can appear in and out of the fluidized sand.
An in-sand burner for a fluidized bed incinerator, which is equipped with a means for operating the in and out.
内側スリーブを前記流動砂中に出没可能な第２の出没操
作手段を備えたことを特徴とする流動床式焼却炉用砂中
バーナ。2. The in-sand burner for a fluidized bed incinerator according to claim 1, further comprising a second retracting operation means capable of retracting the in-sand burner and the inner sleeve in the fluidized sand.
ーブの先端側に、前記砂中バーナの前記第１の出没操作
手段による出没によって開閉可能なくさび形状に形成し
た蓋を設けたことを特徴とする流動床式焼却炉用砂中バ
ーナ。3. The lid according to claim 1, wherein the inner sleeve is provided with a wedge-shaped lid that is openable and closable by retracting or retracting the sand burner by the first retracting operation means on the front end side of the inner sleeve. A sand burner for a fluidized bed incinerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19827994A JP3622060B2 (en) | 1994-08-23 | 1994-08-23 | Burner in sand for fluidized bed incinerator and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19827994A JP3622060B2 (en) | 1994-08-23 | 1994-08-23 | Burner in sand for fluidized bed incinerator and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0861637A true JPH0861637A (en) | 1996-03-08 |
| JP3622060B2 JP3622060B2 (en) | 2005-02-23 |
Family
ID=16388487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19827994A Expired - Fee Related JP3622060B2 (en) | 1994-08-23 | 1994-08-23 | Burner in sand for fluidized bed incinerator and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3622060B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085498A (en) * | 2007-09-28 | 2009-04-23 | Mitsubishi Heavy Ind Ltd | Burned ash deposition prevention device and duct having the same |
| JP2011094868A (en) * | 2009-10-29 | 2011-05-12 | Osaka Gas Co Ltd | Gas nozzle for fluidized bed type incinerator |
| WO2020145090A1 (en) * | 2019-01-11 | 2020-07-16 | 三菱日立パワーシステムズ株式会社 | Burner, burner system, gasification combined power generation equipment, and method for moving burner |
-
1994
- 1994-08-23 JP JP19827994A patent/JP3622060B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085498A (en) * | 2007-09-28 | 2009-04-23 | Mitsubishi Heavy Ind Ltd | Burned ash deposition prevention device and duct having the same |
| JP2011094868A (en) * | 2009-10-29 | 2011-05-12 | Osaka Gas Co Ltd | Gas nozzle for fluidized bed type incinerator |
| WO2020145090A1 (en) * | 2019-01-11 | 2020-07-16 | 三菱日立パワーシステムズ株式会社 | Burner, burner system, gasification combined power generation equipment, and method for moving burner |
| JP2020112311A (en) * | 2019-01-11 | 2020-07-27 | 三菱日立パワーシステムズ株式会社 | Burner, burner system, gasification composite power generation facility, and burner moving method |
| CN112585400A (en) * | 2019-01-11 | 2021-03-30 | 三菱动力株式会社 | Burner, burner system, gasification combined power generation plant, and method for moving burner |
| US11384938B2 (en) | 2019-01-11 | 2022-07-12 | Mitsubishi Power, Ltd. | Burner, burner system, integrated gasification combined cycle, and method for moving burner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3622060B2 (en) | 2005-02-23 |
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