JPH04217704A - Coal gasification burner - Google Patents
Coal gasification burnerInfo
- Publication number
- JPH04217704A JPH04217704A JP2403168A JP40316890A JPH04217704A JP H04217704 A JPH04217704 A JP H04217704A JP 2403168 A JP2403168 A JP 2403168A JP 40316890 A JP40316890 A JP 40316890A JP H04217704 A JPH04217704 A JP H04217704A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- preheating
- burner
- gasification
- air
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 40
- 238000002309 gasification Methods 0.000 title claims abstract description 40
- 239000000446 fuel Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 238000007664 blowing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 abstract description 2
- 238000000889 atomisation Methods 0.000 abstract 2
- 239000003250 coal slurry Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000000746 purification 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
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、石炭水スラリを高温高
圧下で還元して石炭ガスとする石炭ガス化炉に係り、特
に、そのガス化炉に石炭水スラリを吹き込むバーナを改
良した石炭ガス化バーナに関するものである。[Field of Industrial Application] The present invention relates to a coal gasifier that reduces coal water slurry to coal gas under high temperature and high pressure, and particularly relates to a coal gasifier that has an improved burner for blowing coal water slurry into the gasifier. It relates to gasification burners.
【０００２】0002
【従来の技術】最近、石炭水スラリを高温高圧下で還元
して石炭ガスとし、これをガスタービンに供給して発電
を行うことが試みられている。2. Description of the Related Art Recently, attempts have been made to reduce coal-water slurry under high temperature and pressure to produce coal gas, and supply this to a gas turbine to generate electricity.
【０００３】図２は、石炭ガス化炉を示すもので、石炭
ガス化炉１は、耐火物を内張して形成され、その上部に
石炭ガス化バーナ２が設けられ、このバーナ２に、石炭
水スラリ供給ライン３と酸素又は空気供給ライン４とが
接続される。バーナ２から炉１内に吹き込まれた石炭水
スラリは、反応温度を維持するために同時に吹き込まれ
た酸素又は空気で一部燃焼され、残りが還元されて石炭
ガス化ガスとされる。この生成した石炭ガス化ガスは、
排出ライン５より排出され、以後図には示していないが
、ガス精製装置に供給された後、ガスタービンに供給さ
れるようになっている。FIG. 2 shows a coal gasification furnace. A coal gasification furnace 1 is lined with a refractory material, and a coal gasification burner 2 is provided on the top of the furnace. A coal water slurry supply line 3 and an oxygen or air supply line 4 are connected. The coal-water slurry blown into the furnace 1 from the burner 2 is partially combusted with oxygen or air blown simultaneously in order to maintain the reaction temperature, and the remainder is reduced to form coal gasification gas. This generated coal gasification gas is
Although not shown in the drawings, the gas is discharged from the discharge line 5, and after being supplied to a gas purification device, it is supplied to a gas turbine.
【０００４】0004
【発明が解決しようとする課題】ところで、このガス化
運転に入る前には、石炭ガス化炉１内を予熱して内張り
された耐火物の温度を上げる必要がある。現在、予熱運
転を行うには、上述したバーナ２を予め取り外した状態
にしておき、代わりに予熱用バーナを装着し、そのバー
ナにより軽油等を噴霧して石炭ガス化炉１内を予熱する
ようにしている。しかしながら、予熱のために予熱用バ
ーナとガス化バーナとを取り替えるのでは作業性が悪い
と共に予熱完了後、ガス化バーナに取替える際に、時間
がかかると予熱した炉１内が冷えてしまいガス化反応が
行えなくなる問題が生じる。By the way, before starting this gasification operation, it is necessary to preheat the interior of the coal gasifier 1 to raise the temperature of the refractory lined therein. Currently, in order to perform preheating operation, the burner 2 described above must be removed in advance, a preheating burner is installed in its place, and the burner sprays light oil etc. to preheat the inside of the coal gasifier 1. I have to. However, replacing the preheating burner and the gasification burner for preheating is not easy to work with, and if it takes time to replace the gasification burner after preheating is completed, the preheated interior of the furnace 1 will cool down and the gasification A problem arises in which the reaction cannot be carried out.
【０００５】またガス化炉１に予め予熱用バーナを取り
付けておけば、上述の問題は解消できるが、ガス化バー
ナ２によるガス化反応時、予熱用バーナが高温雰囲気に
さらされるため、熱で破損されてしまう。 さらに、
予熱運転の際、ガス化バーナ２から直接軽油を噴霧でき
れば良いが、ガス化運転中の石炭水スラリの流量に対し
、予熱用の軽油の流量は、約１／５０と極端に少なく、
軽油をガス化バーナ２から噴射しても流量が少なすぎて
、噴霧が良好になされないと共に燃焼も維持できない問
題がある。[0005]Also, if a preheating burner is installed in the gasification furnace 1 in advance, the above-mentioned problem can be solved, but since the preheating burner is exposed to a high temperature atmosphere during the gasification reaction by the gasification burner 2, the heat It will be damaged. moreover,
It would be good if light oil could be sprayed directly from the gasification burner 2 during preheating operation, but the flow rate of light oil for preheating is extremely small at about 1/50 of the flow rate of coal water slurry during gasification operation.
Even if light oil is injected from the gasification burner 2, the flow rate is too small, resulting in problems that good spraying cannot be achieved and combustion cannot be maintained.
【０００６】本発明は上記事情を考慮してなされたもの
で、石炭ガス化炉を予熱用燃料で予熱するにおいて、ガ
ス化バーナを通して良好に噴霧できる石炭ガス化バーナ
を提供することを目的とする。The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a coal gasification burner that can effectively spray fuel through the gasification burner when preheating a coal gasification furnace with preheating fuel. .
【０００７】[0007]
【課題を解決するための手段】本発明は、上記の目的を
達成するために、耐火物が内張されたガス化炉に、石炭
水スラリを吹き込んで石炭ガス化を行う石炭ガス化バー
ナにおいて、バーナ本体に石炭水スラリを供給する供給
管に、予熱用燃料と空気とを混合して供給する予熱用燃
料供給手段を接続したものである。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a coal gasification burner that gasifies coal by blowing coal water slurry into a gasification furnace lined with refractories. A preheating fuel supply means for supplying a mixture of preheating fuel and air is connected to a supply pipe that supplies coal water slurry to the burner body.
【０００８】[0008]
【作用】上記の構成によれば、予熱運転の際、予熱用燃
料供給手段より予熱用燃料と空気とを混合してバーナ本
体の供給管に供給することにより、すなわち予熱用燃料
のみでなく空気も同時に混合して供給することで、流量
が大となり良好な噴霧が行える。[Operation] According to the above structure, during preheating operation, by mixing the preheating fuel and air from the preheating fuel supply means and supplying the mixture to the supply pipe of the burner body, it is possible to mix not only the preheating fuel but also the air. By mixing and supplying both at the same time, the flow rate becomes large and good spraying can be achieved.
【０００９】[0009]
【実施例】以下、本発明の好適実施例を添付図面に基づ
いて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１０】図１は、石炭ガス化炉１の頂部のバーナ取
り付け構造を示し、図において石炭ガス化炉１の頂部１
ａには石炭ガス化バーナ本体６を挿通するための挿入穴
７が設けられる。FIG. 1 shows the burner mounting structure at the top of the coal gasifier 1. In the figure, the top 1 of the coal gasifier 1 is
An insertion hole 7 for inserting the coal gasification burner main body 6 is provided in a.
【００１１】石炭ガス化バーナ本体６は、酸素又は空気
が噴射される内側ノズル８と、石炭水スラリ（ＣＷＭ）
などが噴射される外側ノズル９との２重管構造で形成さ
れ、挿入穴７に設けた覆蓋１０にて支持される。The coal gasification burner body 6 has an inner nozzle 8 through which oxygen or air is injected, and a coal water slurry (CWM).
It is formed in a double tube structure with an outer nozzle 9 through which water is sprayed, and is supported by a cover 10 provided in the insertion hole 7.
【００１２】内側ノズル８には酸素又は空気を導入する
導入口１１が設けられ、外側ノズル９には、石炭水スラ
リなどを導入する導入口１２が設けられ、その導入口１
２に石炭水スラリなどを供給する供給管１３が接続され
る。この供給管１３の上流側は二股に分岐され、一方１
３ａはガス化運転用開閉弁１４を介して石炭水スラリ供
給手段（図示せず）に接続され、他方１３ｂは予熱用開
閉弁１５を介して予熱用燃料供給手段１６が接続される
。The inner nozzle 8 is provided with an inlet 11 for introducing oxygen or air, and the outer nozzle 9 is provided with an inlet 12 for introducing coal water slurry.
2 is connected to a supply pipe 13 for supplying coal water slurry or the like. The upstream side of this supply pipe 13 is branched into two, one
3a is connected to a coal water slurry supply means (not shown) via a gasification operation on-off valve 14, and the other 13b is connected to a preheating fuel supply means 16 via a preheating on-off valve 15.
【００１３】予熱用燃料供給手段１６は、混合器本体１
７内にノズル１８を設けたもので、その混合器本体１７
に予混合用空気の導入口１９が設けられ、ノズル１８に
軽油等の予熱用燃料が供給されるようになっている。ま
た覆蓋１０には予熱用空気供給管２０が接続され、その
供給管２０に開閉弁２１が接続される。The preheating fuel supply means 16 is connected to the mixer main body 1.
A nozzle 18 is provided in the mixer body 17.
An inlet 19 for premixing air is provided at , and preheating fuel such as light oil is supplied to the nozzle 18 . Further, a preheating air supply pipe 20 is connected to the cover 10, and an on-off valve 21 is connected to the supply pipe 20.
【００１４】次に上記実施例の作用を説明する。Next, the operation of the above embodiment will be explained.
【００１５】ガス化運転を行う前にガス化炉１内を予熱
する場合、ガス化運転用開閉弁１４を閉じておき、予熱
用開閉弁１５を開とし、予熱用燃料供給手段１６より供
給管１３に予熱用燃料と空気と混合して供給する。すな
わち、ノズル１８から混合器本体１７内に噴射された予
熱用燃料は、導入口１９から本体１７内に供給される予
混合用空気により予混合された状態で、供給管１３を通
り、石炭ガス化バーナ本体６の外側ノズル９からガス化
炉１内に噴射され、また、覆蓋１０に接続した予熱用空
気供給管２０から適宜予熱用空気を供給して燃焼させ、
ガス化炉１内に内張された耐火物を予熱する。この際、
内側ノズル８から噴射される予熱燃料は、予混合用空気
と予混合された状態で噴射されるため、予熱用燃料自体
の流量が少なくても予混合用空気が噴射に必要な流量を
補償し、その噴射が良好に行えると共に燃焼が良好にな
る。When preheating the inside of the gasifier 1 before performing gasification operation, the gasification operation on-off valve 14 is closed, the preheating on-off valve 15 is opened, and the supply pipe is supplied from the preheating fuel supply means 16. The fuel for preheating is mixed with air and supplied to No. 13. That is, the preheating fuel injected into the mixer main body 17 from the nozzle 18 passes through the supply pipe 13 in a state of being premixed by the premixing air supplied into the main body 17 from the inlet 19, and becomes coal gas. The gasifier is injected into the gasifier 1 from the outer nozzle 9 of the gasifier main body 6, and preheating air is supplied as appropriate from the preheating air supply pipe 20 connected to the cover 10 to cause combustion.
The refractory lined inside the gasifier 1 is preheated. On this occasion,
The preheating fuel injected from the inner nozzle 8 is injected in a premixed state with the premixing air, so even if the flow rate of the preheating fuel itself is small, the premixing air can compensate for the flow rate necessary for injection. , the injection can be performed well and the combustion can be improved.
【００１６】ガス化炉１内に内張された耐火物の予熱が
完了したならば、予熱用開閉弁１５を閉じ、ガス化運転
用開閉弁１４を開き、供給管１３に石炭水スラリを供給
して内側ノズル８から炉１内に噴射すると共に外側ノズ
ル９から酸素又は空気を噴射してガス化運転を行う。When the preheating of the refractory lined in the gasifier 1 is completed, the preheating on-off valve 15 is closed, the gasification operation on-off valve 14 is opened, and the coal water slurry is supplied to the supply pipe 13. Oxygen or air is injected into the furnace 1 from the inner nozzle 8, and oxygen or air is injected from the outer nozzle 9 to perform gasification operation.
【００１７】この予熱運転からガス化運転に切り替える
際には、開閉弁１４，１５を切り替えるだけですみ、そ
の操作が簡単である。[0017] When switching from the preheating operation to the gasification operation, it is only necessary to switch the on-off valves 14 and 15, and the operation is simple.
【００１８】[0018]
【発明の効果】以上説明したことから明らかなように本
発明によれば次のごとき優れた効果を発揮する。[Effects of the Invention] As is clear from the above explanation, the present invention exhibits the following excellent effects.
【００１９】（１） ガス化炉内を予熱するにおいて、
予熱用燃料を、石炭水スラリを噴射するガス化バーナを
用いて噴射するので、予熱運転とガス化運転の切り替え
が簡単にできる。(1) In preheating the inside of the gasifier,
Since the preheating fuel is injected using a gasification burner that injects coal water slurry, switching between preheating operation and gasification operation can be easily performed.
【００２０】（２） 予熱用燃料をガス化バーナを用い
て噴射するおいて、その燃料に予め空気を混合して噴射
するので、予熱用燃料の流量が少なくでも十分な噴射が
できると共に、良好な燃焼ができる。(2) When the preheating fuel is injected using a gasification burner, the fuel is mixed with air beforehand and is injected, so that even if the flow rate of the preheating fuel is small, sufficient injection can be performed, and the injection is good. combustion.
【図１】本発明の一実施例を示す断面図[Fig. 1] Cross-sectional view showing one embodiment of the present invention
【図２】石炭ガ
ス化炉の全体断面図である。FIG. 2 is an overall sectional view of a coal gasifier.
１ 石炭ガス化炉 ６ 石炭ガス化バーナ １３ 供給管 １６ 予熱用燃料供給手段 1 Coal gasifier 6 Coal gasification burner 13 Supply pipe 16 Preheating fuel supply means
Claims (1)
水スラリを吹き込んで石炭ガス化を行う石炭ガス化バー
ナにおいて、バーナ本体に石炭水スラリを供給する供給
管に、予熱用燃料と空気とを混合して供給する予熱用燃
料供給手段を接続したことを特徴とする石炭ガス化バー
ナ。Claim 1: In a coal gasification burner that gasifies coal by blowing coal water slurry into a gasification furnace lined with refractories, preheating fuel is connected to a supply pipe that supplies the coal water slurry to the burner body. A coal gasification burner characterized by being connected to a preheating fuel supply means for supplying a mixture of fuel and air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2403168A JP3047996B2 (en) | 1990-12-18 | 1990-12-18 | Coal gasification burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2403168A JP3047996B2 (en) | 1990-12-18 | 1990-12-18 | Coal gasification burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04217704A true JPH04217704A (en) | 1992-08-07 |
| JP3047996B2 JP3047996B2 (en) | 2000-06-05 |
Family
ID=18512930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2403168A Expired - Fee Related JP3047996B2 (en) | 1990-12-18 | 1990-12-18 | Coal gasification burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3047996B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5433599A (en) * | 1992-03-16 | 1995-07-18 | Hoogovens Groep B.V. | Ceramic burner for a hot-blast stove of a blast furnace |
| KR100433443B1 (en) * | 2002-02-07 | 2004-05-31 | 사단법인 고등기술연구원 연구조합 | Gasifier complex burner |
-
1990
- 1990-12-18 JP JP2403168A patent/JP3047996B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5433599A (en) * | 1992-03-16 | 1995-07-18 | Hoogovens Groep B.V. | Ceramic burner for a hot-blast stove of a blast furnace |
| KR100433443B1 (en) * | 2002-02-07 | 2004-05-31 | 사단법인 고등기술연구원 연구조합 | Gasifier complex burner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3047996B2 (en) | 2000-06-05 |
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