JPH03152302A - High efficiency combustion in fluidized bed furnace and its device - Google Patents
High efficiency combustion in fluidized bed furnace and its deviceInfo
- Publication number
- JPH03152302A JPH03152302A JP1290625A JP29062589A JPH03152302A JP H03152302 A JPH03152302 A JP H03152302A JP 1290625 A JP1290625 A JP 1290625A JP 29062589 A JP29062589 A JP 29062589A JP H03152302 A JPH03152302 A JP H03152302A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- supply pipe
- fluidized bed
- bed furnace
- combustion
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 31
- 239000001301 oxygen Substances 0.000 claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 46
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims description 21
- 238000009841 combustion method Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 19
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 abstract description 3
- 229910001882 dioxygen Inorganic materials 0.000 abstract 2
- 239000002075 main ingredient Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Air Supply (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、流動床炉において、炉内で処理物を完全燃焼
させる高効率燃焼方法及び装置に関するもので、流動床
で燃焼可能な石炭、都市ごみ、汚泥、一般廃棄物等の処
理に利用するのに適している。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a highly efficient combustion method and apparatus for completely burning a processed material in a fluidized bed furnace. Suitable for use in processing municipal waste, sludge, general waste, etc.
［従来の技術〕
従来、流動床炉における燃焼方式は、処理物の負荷変動
、組成及び性状の変動等に応じて、燃焼用二次空気量を
制御するものが一般的である。たとえば、炉出口の排ガ
スラインに設けられた温度計又は０！計からの信号によ
り、二次空気量を！Ｐ１節している。[Prior Art] Conventionally, a combustion system in a fluidized bed furnace generally controls the amount of secondary air for combustion in accordance with changes in the load, composition, and properties of the processed material. For example, a thermometer installed in the exhaust gas line at the furnace outlet or 0! The amount of secondary air is determined by the signal from the meter! It has P1 section.
しかし、従来の技術においては、処理物の負荷変動、組
成及び性状の変動が大きい処理物の場合は、二次空気の
制御のみでは不完全燃焼を起こすことがあり、黒煙発生
の原因になっている。However, with conventional technology, if the load of the processed material is subject to large fluctuations, and the composition and properties of the processed material vary greatly, controlling the secondary air alone may cause incomplete combustion, causing black smoke. ing.
本発明は上記の点に鑑みなされたもので、二次空気に必
要な場合に酸素を供給することにより、高効率の完全燃
焼を実施することができ、かつ、排ガス処理設備、通風
設備等のコンパクトを図ることができる方法及び装置を
Ｈ４Ｂすることを目的とするものである。The present invention was made in view of the above points, and it is possible to carry out highly efficient complete combustion by supplying oxygen to the secondary air when necessary, and to improve the efficiency of exhaust gas treatment equipment, ventilation equipment, etc. The object of the present invention is to provide a method and apparatus that can be made compact.
〔課題を解決するための手段および作用〕上記の目的を
達成するために、請求項１の方法は、流動床炉で処理物
を燃焼させるに際し、燃焼用二次空気に酸素を供給する
ことを特徴とするものである。[Means and operations for solving the problem] In order to achieve the above object, the method of claim 1 includes supplying oxygen to the secondary combustion air when burning the processed material in the fluidized bed furnace. This is a characteristic feature.
才だ、ｉｆｆ求項２の方法は、流動床炉で処理物を燃焼
させるに際し、一次空気及び燃焼用二次空気に酸素を供
給することを特徴とするものである。The method of IF term 2 is characterized by supplying oxygen to the primary air and the secondary air for combustion when the processed material is combusted in a fluidized bed furnace.
また、請求項３の装置は、第１図及び第２図に示すよう
に、風箱２に一次空気供給管５を、フリーボード４に燃
焼用二次空気供給管６を接続した流動床炉１において、
燃焼用二次空気供給青石に酸素供給管１２を接続したこ
とを特徴とするものである。Further, the apparatus of claim 3 is a fluidized bed furnace in which a primary air supply pipe 5 is connected to the wind box 2 and a secondary air supply pipe 6 for combustion is connected to the freeboard 4, as shown in FIGS. 1 and 2. In 1,
It is characterized in that an oxygen supply pipe 12 is connected to the secondary air supply blue stone for combustion.
さらに、請求項４の装置は、風箱２に一次空気供給管５
を、フリーボード４に燃焼用二次空気供給管６を接続し
た流動床炉１において、一次空気供給管５及び燃焼用二
次空気供給管６にそれぞれ酸素供給管２４．１２を接続
したことを特徴とするものである。Furthermore, the device of claim 4 has a primary air supply pipe 5 in the wind box 2.
In the fluidized bed furnace 1 in which the secondary air supply pipe 6 for combustion is connected to the freeboard 4, the oxygen supply pipes 24 and 12 are connected to the primary air supply pipe 5 and the secondary air supply pipe 6 for combustion, respectively. This is a characteristic feature.
酸素としては、純酸素、酸素富化空気等の酸素を主成分
とするガス等が用いられる。As the oxygen, a gas containing oxygen as a main component, such as pure oxygen or oxygen-enriched air, is used.
請求項１及び３においては、第１図に示すように、二次
空気に酸素を供給して、処理物を完全燃焼させる。In claims 1 and 3, as shown in FIG. 1, oxygen is supplied to the secondary air to completely burn the processed material.
また、請求項２及び４においては、第３図に示すように
、一次空気及び二次空気に酸素を供給して、処理物を完
全燃焼させる。Moreover, in claims 2 and 4, as shown in FIG. 3, oxygen is supplied to the primary air and secondary air to completely burn the processed material.
（実施例）
以下、図面を参照して本発明の好適な実施例を詳細に説
明する。ただしこの実施例に記載されている構成機器の
形状、その相対配置などは、とくに特定的な記載がない
限りは、本発明の範囲をそれらのみに限定する趣旨のも
のではなく、単なる説明例にすぎない。(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. However, unless there is a specific description, the shapes of the components described in this example, their relative positions, etc. are not intended to limit the scope of the present invention to these, but are merely illustrative examples. Only.
実施例１
第１図において、１は流動床炉で、風箱２、流動床３、
フリーボード４を有している。そして、風箱２には一次
空気供給管５が接続され、フリーボード４には燃焼用二
次空気供給管６が接続されている。７は空気分散板、８
は処理物投入口、１０は排ガス出口である。Example 1 In Fig. 1, 1 is a fluidized bed furnace, which includes a wind box 2, a fluidized bed 3,
It has a free board 4. A primary air supply pipe 5 is connected to the wind box 2, and a combustion secondary air supply pipe 6 is connected to the freeboard 4. 7 is an air distribution plate, 8
1 is a processing material inlet, and 10 is an exhaust gas outlet.
上記のように構成された流動床炉１において、燃焼用二
次空気供給管６に、ダンパー、弁、インバータ等の酸素
１！Ｉｔ節装置１１を備えた酸素供給管１２を介して酸
素供給装置１３が接続されている。この酸素供給装置１
３は、酸素ボンベ、酸素タンク、酸素製造機、酸素富化
空気製造機等である。１４は一次送風機、１５は二次送
風機、１６は排ガスラインに接続された温度計、１７は
排ガスラインに接続されたＯ！計、１８は二次ノズルで
ある。なお通常、排ガスラインにはガス冷却室、ついで
電気集塵機が設けられており、温度計１６はガス冷却室
の上流側に、０２針１７はガス冷却室と電気集塵機との
間に設けられる。In the fluidized bed furnace 1 configured as described above, the secondary air supply pipe 6 for combustion is provided with oxygen 1! An oxygen supply device 13 is connected via an oxygen supply pipe 12 provided with an It node device 11 . This oxygen supply device 1
3 is an oxygen cylinder, an oxygen tank, an oxygen production machine, an oxygen-enriched air production machine, etc. 14 is a primary blower, 15 is a secondary blower, 16 is a thermometer connected to the exhaust gas line, and 17 is an O! connected to the exhaust gas line. A total of 18 are secondary nozzles. Note that the exhaust gas line is usually provided with a gas cooling chamber and then an electrostatic precipitator, the thermometer 16 is provided upstream of the gas cooling chamber, and the 02 needle 17 is provided between the gas cooling chamber and the electrostatic precipitator.
第２図は二次ノズル１８の一例の詳細を示している。酸
素ノズル２０を被覆するように二次空気ノズル２１を設
けて二重管を構成し、空気と酸素とを混合しながら流動
床炉１内に噴射するようにしている。なお、二次空気ノ
ズルを被覆するように酸素ノズルを設けるか、又は二次
空気ノズル七は別に酸素ノズルを設けても差し支えない
。FIG. 2 shows details of an example of the secondary nozzle 18. A secondary air nozzle 21 is provided to cover the oxygen nozzle 20 to form a double pipe, and air and oxygen are mixed and injected into the fluidized bed furnace 1. Note that an oxygen nozzle may be provided to cover the secondary air nozzle, or an oxygen nozzle may be provided separately for the secondary air nozzle 7.
このように構成された流動床炉の高効率燃焼装置におい
て、温度計１６もしくはｏｔｉ（−１７と酸素量Ｕ４節
装置ｆｔｍとを接続するか、又は処理物が定常杖態より
も多量に供給されたことを検知する処理物多量供給検知
手段２２とを接続して、処理物が多量に供給されること
により排ガスの温度が上がるかもしくは排ガス中のＯ１
濃度が低下するのを検知して、酸素量ｉｊｉ！Ｉｆｆ装
置１１を開方向に制御するように構成するか、又は処理
物が多量に供給するのを直接検知して、酸素量１節装置
１１を開方向に制御するように構成する。In the high-efficiency combustion apparatus of the fluidized bed furnace configured in this way, the thermometer 16 or oti(-17) is connected to the oxygen amount U4 moderator ftm, or the treated material is supplied in a larger amount than in the steady state. A large amount of processing material supply detection means 22 is connected to detect whether the temperature of the exhaust gas increases or O1 in the exhaust gas increases due to the large amount of processing material being supplied.
Detects the decrease in oxygen concentration and determines the amount of oxygen! The Iff device 11 is configured to be controlled in the open direction, or the oxygen amount single mode device 11 is configured to be controlled in the open direction by directly detecting that a large amount of processing material is supplied.
処理物多量供給検知手段２２としては、たとえば、処理
物供給機の回転数、時間当り重量及び容積を検知するよ
うな方式がある。As the processing material large quantity supply detection means 22, for example, there is a method of detecting the rotation speed, weight per hour, and volume of the processing material supply machine.
実施例２
本例は第３図に示すように、燃焼用二次空気供給管６及
び一次空気供給管５に、それぞれ酸素量調節装置１１．
２３を備えた酸素供給管１２．２４を接続し、これらの
酸素量調節装置１１．２３に温度計１６もしくは０□計
１７、又は処理物多量供給検知手段２２を接続したもの
である。他の構成、作用は実施例１と同様である。Embodiment 2 In this embodiment, as shown in FIG. 3, an oxygen amount adjusting device 11.
Oxygen supply pipes 12, 24 equipped with 23 are connected, and a thermometer 16, a 0□ meter 17, or a large quantity supply detecting means 22 of the processed material is connected to these oxygen amount adjusting devices 11, 23. Other configurations and operations are the same as in the first embodiment.
［発明の効果］
本発明は上記のように構成されているので、つぎのよう
な効果を奏する。[Effects of the Invention] Since the present invention is configured as described above, the following effects are achieved.
（１）廃棄物のような組成のバラツキの大きい処理物を
燃焼させる場合には、必要な０□を的確に効率よく供給
できるので、高効率の完全燃焼を実施することができる
。(1) When burning a material to be treated with a large variation in composition, such as waste, the necessary 0□ can be supplied accurately and efficiently, so complete combustion can be carried out with high efficiency.
（２）二次空気により供給酸素を混合撹拌し、制御分の
少量酸素供給コントロール（空気の無駄なＮ、（共給が
なくなる）で、０．制御ができるので、排ガス量増減が
わずかとなり、このため、ＩＤＦ（誘引ファン）による
炉内圧制御が安定・確実にでき、省エネルギーを図るこ
とができる。(2) By mixing and stirring the supplied oxygen with secondary air, it is possible to control the small amount of oxygen supply (no wasted N in air, (no co-supply), and 0.0 control is possible, so the increase or decrease in exhaust gas amount is small, Therefore, the furnace internal pressure can be controlled stably and reliably by the IDF (induction fan), and energy can be saved.
（３）排ガス処理設備、通風設備（請求項２．４の場合
は燃焼設備も）等の機器がコンパクトになり、イニシャ
ルコストが安価となる。(3) Equipment such as exhaust gas treatment equipment and ventilation equipment (also combustion equipment in the case of claim 2.4) becomes more compact, and the initial cost becomes lower.
（４）請求項２．４の場合は、流動床炉を小径にするこ
とができるので、流動床で最も動力を要する一次送風機
の風量を低減することができる。(4) In the case of claim 2.4, since the diameter of the fluidized bed furnace can be made small, the air volume of the primary blower, which requires the most power in the fluidized bed, can be reduced.
このため、省エネルギー、後流の排ガス設備のさらなる
コンパクト化及び処理量ベースでの大型化が実現可能と
なる。Therefore, it becomes possible to save energy, further downsize the downstream exhaust gas equipment, and increase the size based on the throughput.
第１図は本発明の流動床炉の高効率燃焼装置の一実施例
を示す説明図、第２図は第１図における二次ノズル部の
一例を示す拡大断面図、第３図は本発明の装置の他の実
施例を示す説明図である。
１・・・流動床炉、２・・・風箱、３・・・流動床、４
・・・フリーボード、５・・・一次空気供給管、６・・
・燃焼用二次空気供給管、７・・・空気分散板、８・・
・処理物投入口、１０・・・排ガス出口、１１・・・酸
素′！１調節装置、１２・・・酸素供給管、１３・・・
酸素供給装置、１４・・・一次送風機、１５・・・二次
送風機、１６・・・温度計、１７・・・０．計、１８・
・・二次ノズル、２０・・・酸素ノズル、２１・・・二
次空気ノズル、２２・・・処理物多量供給検知手段、２
３・・・酸素ａｉｍ節装置、２４・・・酸素イ共結管
第２図FIG. 1 is an explanatory diagram showing an embodiment of a high-efficiency combustion device for a fluidized bed furnace according to the present invention, FIG. 2 is an enlarged sectional view showing an example of the secondary nozzle part in FIG. 1, and FIG. FIG. 3 is an explanatory diagram showing another embodiment of the device. 1... Fluidized bed furnace, 2... Wind box, 3... Fluidized bed, 4
...Free board, 5...Primary air supply pipe, 6...
・Combustion secondary air supply pipe, 7...Air distribution plate, 8...
- Processing material inlet, 10...Exhaust gas outlet, 11...Oxygen'! 1 regulator, 12... oxygen supply pipe, 13...
Oxygen supply device, 14...Primary blower, 15...Secondary blower, 16...Thermometer, 17...0. Total, 18.
... Secondary nozzle, 20 ... Oxygen nozzle, 21 ... Secondary air nozzle, 22 ... Processing material large quantity supply detection means, 2
3...Oxygen aim node device, 24...Oxygen A joint tube Figure 2
Claims (1)
空気に酸素を供給することを特徴とする流動床炉の高効
率燃焼方法。 ２ 流動床炉で処理物を燃焼させるに際し、一次空気及
び燃焼用二次空気に酸素を供給することを特徴とする流
動床炉の高効率燃焼方法。 ３ 風箱（２）に一次空気供給管（５）を、フリーボー
ド（４）に燃焼用二次空気供給管（６）を接続した流動
床炉（１）において、燃焼用二次空気供給管（６）に酸
素供給管（１２）を接続したことを特徴とする流動床炉
の高効率燃焼装置。 ４ 風箱（２）に一次空気供給管（５）を、フリーボー
ド（４）に燃焼用二次空気供給管（６）を接続した流動
床炉（１）において、一次空気供給管（５）及び燃焼用
二次空気供給管（６）にそれぞれ酸素供給管（２４、１
２）を接続したことを特徴とする流動床炉の高効率燃焼
装置。[Scope of Claims] 1. A highly efficient combustion method for a fluidized bed furnace, which comprises supplying oxygen to secondary air for combustion when a processed material is combusted in the fluidized bed furnace. 2. A highly efficient combustion method for a fluidized bed furnace, which comprises supplying oxygen to primary air and secondary air for combustion when burning a processed material in a fluidized bed furnace. 3 In a fluidized bed furnace (1) in which the primary air supply pipe (5) is connected to the wind box (2) and the secondary air supply pipe for combustion (6) is connected to the freeboard (4), the secondary air supply pipe for combustion is A high-efficiency combustion device for a fluidized bed furnace, characterized in that (6) is connected to an oxygen supply pipe (12). 4 In a fluidized bed furnace (1) in which the primary air supply pipe (5) is connected to the wind box (2) and the secondary air supply pipe (6) for combustion is connected to the freeboard (4), the primary air supply pipe (5) and oxygen supply pipes (24, 1) to the combustion secondary air supply pipe (6), respectively.
2) A high-efficiency combustion device for a fluidized bed furnace, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290625A JP2530502B2 (en) | 1989-11-08 | 1989-11-08 | Highly efficient combustion method and apparatus for fluidized bed furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290625A JP2530502B2 (en) | 1989-11-08 | 1989-11-08 | Highly efficient combustion method and apparatus for fluidized bed furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03152302A true JPH03152302A (en) | 1991-06-28 |
| JP2530502B2 JP2530502B2 (en) | 1996-09-04 |
Family
ID=17758409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1290625A Expired - Fee Related JP2530502B2 (en) | 1989-11-08 | 1989-11-08 | Highly efficient combustion method and apparatus for fluidized bed furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530502B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195019A (en) * | 1983-04-21 | 1984-11-06 | Ebara Corp | Fluidized-bed type combustion furnace |
| JPS60238605A (en) * | 1984-05-10 | 1985-11-27 | Kuraray Co Ltd | Fluidized combustion |
-
1989
- 1989-11-08 JP JP1290625A patent/JP2530502B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195019A (en) * | 1983-04-21 | 1984-11-06 | Ebara Corp | Fluidized-bed type combustion furnace |
| JPS60238605A (en) * | 1984-05-10 | 1985-11-27 | Kuraray Co Ltd | Fluidized combustion |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2530502B2 (en) | 1996-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6071842U (en) | steam generator | |
| JPH03152302A (en) | High efficiency combustion in fluidized bed furnace and its device | |
| JP2758090B2 (en) | CO control method in incinerator | |
| JPH06323510A (en) | Combustion control method in fluidized bed type furnace | |
| JPS6125961B2 (en) | ||
| CN205779238U (en) | Electricity generation system | |
| CN111121064A (en) | Waste liquid oxygen-enriched incineration device | |
| CN205779239U (en) | Electricity generation system | |
| JPS61231321A (en) | Combustion control unit of radioactive waste incinerator | |
| JPH07243611A (en) | Method and apparatus for burning finely ground coal | |
| JPS5682314A (en) | Sludge incinerator | |
| JP2762054B2 (en) | Combustion control method for fluidized bed incinerator | |
| JPS5585805A (en) | Low nox burner device | |
| JP3052967B2 (en) | Secondary air supply device for incinerator | |
| JPS5443333A (en) | Liquid duel combustion apparatus | |
| JP2663307B2 (en) | Operating method of waste combustion furnace | |
| JPH064172Y2 (en) | Reactor pressure control device for fluidized bed combustor | |
| JPS5668713A (en) | Fluidized incinerator for mixed combustion of coal and refuse | |
| SU1209293A1 (en) | Grinding and drying installation | |
| JPS6259307A (en) | Device for pulverizing and supplying coal | |
| JPS599419A (en) | Air supplying apparatus for fluidized-bed incinerator | |
| JP2000121025A (en) | Method for controlling combustion of fluidized bed incinerator | |
| JPH04260710A (en) | Method of controlling combustion of waste material incinerator | |
| JPH11132425A (en) | Secondary combustion method in refuse incinerator | |
| JPH06313511A (en) | Method and device for complete combustion in fluidized bed furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |