JPH11228975A - Preheating apparatus for gasification oven - Google Patents

Preheating apparatus for gasification oven

Info

Publication number
JPH11228975A
JPH11228975A JP10031576A JP3157698A JPH11228975A JP H11228975 A JPH11228975 A JP H11228975A JP 10031576 A JP10031576 A JP 10031576A JP 3157698 A JP3157698 A JP 3157698A JP H11228975 A JPH11228975 A JP H11228975A
Authority
JP
Japan
Prior art keywords
preheating
burner
fuel
gasification furnace
main body
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.)
Pending
Application number
JP10031576A
Other languages
Japanese (ja)
Inventor
Sugihiro Konishi
杉弘 小西
Tetsuya Hori
哲哉 堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP10031576A priority Critical patent/JPH11228975A/en
Publication of JPH11228975A publication Critical patent/JPH11228975A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

PROBLEM TO BE SOLVED: To efficiently and economically preheat a downward entrained-bed gasification oven, which gasifies a fuel comprising carbon compds., by installing a preheating burner for heating the inside of the oven at its downstream side. SOLUTION: This gasification oven 15 mainly comprises an oven body 1 for reacting a fuel with an oxidizing agent and water at high temps. to gasify the fuel; a gas cooler 2 connected to the downstream side of the oven body 1 for cooling the gasification gas; a burner 6 installed at the top of the oven body 1; a fuel supply means 7 connected to the burner 6 for supplying a fuel to the oven body 1; an oxidizing agent supply means 8 connected to the burner 6 for supplying an oxidizing agent to the oven body 1; an exhaust means 10 installed at the top of the oven body 1 for exhausting; a preheating burner 3 installed at the upper part of the gas cooler 2 for preheating the oven body 1 at the start of operation, etc.; a means 4 for supplying a fuel for preheating to the preheating burner 3; and a means 5 for supplying combustion air for preheating to the preheating burner 3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、石炭等の燃料をガ
ス化炉本体の上部で下向きに噴射して酸化剤及び水と反
応させてガス化する下向き噴流床方式のガス化炉の予熱
装置に係り、特に、ガス化炉本体の下流部にその内部を
加熱する予熱バーナを設けたガス化炉の予熱装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a preheating apparatus for a gasifier having a downward spouted bed system in which a fuel such as coal is injected downward at an upper portion of a gasifier main body to react with an oxidizing agent and water to gasify. More particularly, the present invention relates to a preheating device for a gasification furnace having a preheating burner for heating the inside of a gasification furnace main body at a downstream portion thereof.

【0002】[0002]

【従来の技術】図2に、炭素化合物(具体的には石炭,
重油及びメタン等の炭化水素)から成る燃料を炉の入口
で下向きに噴射すると共に高温下でこれを酸化剤及び水
分と反応させてガス化する、従来の下向き噴流床方式の
ガス化炉20が示されている。
2. Description of the Related Art FIG. 2 shows a carbon compound (specifically, coal,
A conventional downward-spouted-bed type gasifier 20 injects a fuel composed of heavy oil and hydrocarbons such as methane downward at the inlet of the furnace and gasifies the fuel by reacting it with an oxidizing agent and moisture at a high temperature. It is shown.

【0003】この従来の下向き噴流床方式のガス化炉2
0は、一般に、燃料を高温下で酸化剤及び水と反応させ
てガス化するガス化炉本体1と、ガス化されたガス(ガ
ス化ガス)を冷却すべくガス化炉本体1の下流側に接続
されたガスクーラ2と、ガス化炉本体1の頂部に設けら
れたバーナ6と、ガス化炉本体1に燃料を供給すべくバ
ーナ6に接続された燃料供給手段7と、ガス化炉本体1
に酸化剤(空気等)を供給すべくバーナ6に接続された
酸化剤供給手段8と、運転開始時などにガス化炉本体1
を予熱すべくバーナ6に付随して設けられた予熱バーナ
13と、予熱バーナ13に予熱のための燃料(軽油,プ
ロパン等)を供給する予熱燃料供給手段14と、予熱バ
ーナ13に予熱のための燃焼空気を供給する空気供給手
段15とから主に構成される。
[0003] This conventional downward-spouted bed type gasifier 2
0 generally indicates a gasification furnace body 1 that reacts fuel with an oxidizing agent and water at a high temperature to gasify the gas, and a downstream side of the gasification furnace body 1 to cool the gasified gas (gasification gas). A gas cooler 2 connected to the gasifier, a burner 6 provided at the top of the gasifier body 1, a fuel supply means 7 connected to the burner 6 to supply fuel to the gasifier body 1, a gasifier body. 1
Oxidant supply means 8 connected to a burner 6 for supplying an oxidant (air or the like) to the gasification furnace body 1 at the start of operation or the like.
A preheating burner 13 attached to the burner 6 to preheat the fuel, a preheating fuel supply means 14 for supplying fuel (light oil, propane, etc.) to the preheating burner 13, and a preheating burner 13 for the preheating burner 13. And air supply means 15 for supplying combustion air.

【0004】なお、必要であれば、ガス化反応に必要な
水分をガス化炉本体1に供給する水供給手段9を、バー
ナ6に接続して設けてもよい。
[0004] If necessary, a water supply means 9 for supplying water required for the gasification reaction to the gasification furnace main body 1 may be connected to the burner 6.

【0005】また、図2においては、説明を容易にする
ためにバーナ6と予熱バーナ13が別々に構成された例
が示されているが、バーナ6が予熱バーナ13としても
機能できるように構成し、予熱バーナ13を省いてよい
のは勿論である。なお、この場合は、燃料供給手段7が
予熱時に予熱燃料をバーナ6に供給できるように構成す
ることが望ましい。
FIG. 2 shows an example in which the burner 6 and the preheating burner 13 are separately provided for the sake of simplicity of explanation, but the burner 6 can also function as the preheating burner 13. However, it goes without saying that the preheating burner 13 may be omitted. In this case, it is desirable that the fuel supply means 7 be configured to supply the preheated fuel to the burner 6 at the time of preheating.

【0006】石炭等の燃料が、燃料供給手段7からバー
ナ6を介してガス化炉本体1内に下向きに噴射される。
同時に、空気等の酸化剤が酸化剤供給手段8から、また
必要であれば水分が水供給手段9から各々バーナ6を介
してガス化炉本体1内に供給され、この結果、燃料,酸
化剤及び水がガス化炉本体1内で反応してガス化され、
ガス化ガス(主にH2 ,CO,CO2 )が発生する。
Fuel such as coal is injected downward from the fuel supply means 7 into the gasifier main body 1 via the burner 6.
At the same time, an oxidant such as air is supplied from the oxidant supply means 8 and, if necessary, water is supplied from the water supply means 9 into the gasification furnace main body 1 via the burner 6, and as a result, fuel, oxidant And water react in the gasification furnace body 1 to be gasified,
Gasification gas (mainly H 2 , CO, CO 2 ) is generated.

【0007】しかし、運転開始時などガス化炉本体1の
温度が比較的低い場合は、ガス化反応が円滑に進行しな
い可能性があるので、燃料,酸化剤などをガス化炉本体
1内に供給する前に、予熱バーナ13によってガス化炉
本体1内部を暖める(予熱する)。
However, when the temperature of the gasification furnace main body 1 is relatively low, such as at the start of operation, the gasification reaction may not proceed smoothly. Before the supply, the inside of the gasification furnace main body 1 is warmed (preheated) by the preheating burner 13.

【0008】すなわち、ガス化炉本体1内部の温度が比
較的低いときには、予熱燃料供給手段14を介して予熱
燃料が、また空気供給手段15を介して燃焼空気が予熱
バーナ13に供給され、予熱バーナ13で燃焼が行われ
る。この燃焼により暖められた空気は、ガス化炉本体1
及びガスクーラ2内部を図示しない負圧発生手段で負圧
にすることにより、あるいはガス化炉本体1及びガスク
ーラ2内部に図示しない圧縮空気供給手段で圧縮空気を
送りこむことにより、下流方向に強制的に排気される。
そして、このように暖められた空気が内部を通ることに
より、ガス化炉本体1(及び結果的にガスクーラ2)の
内部が暖められる(予熱される)。
That is, when the temperature inside the gasifier main body 1 is relatively low, the preheating fuel is supplied to the preheating burner 13 via the preheating fuel supply means 14 and the combustion air is supplied to the preheating burner 13 via the air supply means 15. Combustion is performed in the burner 13. The air heated by this combustion is supplied to the gasifier main body 1
By forcing the inside of the gas cooler 2 into a negative pressure by means of a negative pressure generating means (not shown), or by sending compressed air into the inside of the gasification furnace main body 1 and the gas cooler 2 by means of a compressed air supply means (not shown), forcibly in the downstream direction. Exhausted.
Then, the inside of the gasification furnace main body 1 (and consequently, the gas cooler 2) is warmed (preheated) by the air thus heated passing through the inside.

【0009】こうしてガス化炉本体1内部がガス化反応
に適した温度に予熱されると、上記のように燃料,酸化
剤などがバーナ6を介してガス化炉本体1に供給され、
ガス化が行われる。
When the interior of the gasification furnace main body 1 is preheated to a temperature suitable for the gasification reaction, fuel, oxidizing agent and the like are supplied to the gasification furnace main body 1 through the burner 6 as described above.
Gasification takes place.

【0010】ガス化炉本体1内で発生したガス化ガス
は、ガスクーラ2に送られて冷却される。ガスクーラ2
で冷却されたガス化ガスは、図示されない諸設備(脱硫
塔など)で適宜処理され、その後発電等に利用されてか
ら大気放出される。
The gasified gas generated in the gasification furnace main body 1 is sent to a gas cooler 2 and cooled. Gas cooler 2
The gasified gas cooled in the above is appropriately treated in various equipment (not shown) (desulfurization tower or the like), and thereafter is released to the atmosphere after being used for power generation or the like.

【0011】[0011]

【発明が解決しようとする課題】さて、上記のように下
向き噴流床式のガス化炉本体の頂部のバーナに付随して
予熱バーナを設け、この予熱バーナで暖めた空気をガス
化炉内を負圧にすることにより(あるいは炉内に圧縮空
気を注入することにより)下流側に抜いてガス化炉内を
予熱する場合、これを効果的に行うためには結局ガス化
炉の下流側のガスクーラも負圧にしなければならない
(あるいは下流側のガスクーラにも圧縮空気を注入しな
ければならない)。
As described above, a preheating burner is provided in addition to the burner at the top of the gasification furnace body of the downward spouted bed type, and air heated by the preheating burner is supplied to the inside of the gasification furnace. When preheating the gasification furnace by drawing it to the downstream side by creating a negative pressure (or by injecting compressed air into the furnace), in order to do this effectively, it is necessary to end up with the downstream side of the gasification furnace. The gas cooler must also be underpressure (or compressed air must be injected into the downstream gas cooler).

【0012】ところが、このようにガス化炉本体とガス
クーラの両方に負圧を発生させたり圧縮空気を注入した
りして内部の空気を強制的に排気しようとすると、ガス
クーラの容積が大きいため、負圧の発生あるいは圧縮空
気の注入に多くの動力が必要となり不経済であるばかり
か、予熱作業に時間がかかるという問題があった。
However, if the internal air is forcibly exhausted by generating a negative pressure or injecting compressed air into both the gasification furnace main body and the gas cooler, the volume of the gas cooler is large. A lot of power is required to generate a negative pressure or to inject compressed air, which is not only uneconomical, but also takes time to perform a preheating operation.

【0013】また、ガス化炉のみを予熱すればよいのに
もかかわらず、結果的にガスクーラも無駄に予熱されて
しまうという問題があった。
[0013] In addition, although only the gasification furnace needs to be preheated, there is a problem in that the gas cooler is preciously heated as a result.

【0014】そこで、本発明の目的は、下向き噴流床式
のガス化炉の予熱を効率的かつ経済的に行えるガス化炉
の予熱装置を提供することである。
It is an object of the present invention to provide a gasification furnace preheating apparatus capable of efficiently and economically preheating a downward spouted bed type gasification furnace.

【0015】[0015]

【課題を解決するための手段】上記目的を達成するため
請求項1の発明は、石炭等の炭素化合物から成る燃料を
ガス化炉本体の頂部から下向きに噴射して酸素などの酸
化剤及び水と反応させてガス化する下向き噴流床方式の
ガス化炉の予熱装置において、ガス化炉本体の下流部に
その内部を熱する予熱バーナを設けて構成される。
In order to achieve the above object, according to the first aspect of the present invention, a fuel made of a carbon compound such as coal is injected downward from the top of a gasification furnace main body and an oxidizing agent such as oxygen and water. The gasification furnace of the downward spouted bed system which reacts with and gasifies the gasification furnace is provided with a preheating burner which heats the inside of the gasification furnace body downstream of the gasification furnace body.

【0016】[0016]

【発明の実施の形態】以下、本発明の好適実施の形態を
添付図面により説明する。
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

【0017】図1に、下向き噴流床方式のガス化炉(燃
料を炉の入口で下向きに噴射して酸化剤及び水分と反応
させてガス化するガス化炉)の予熱をガス化炉の下流で
行う本発明のガス化炉の予熱装置を備えたガス化炉が、
概略的に示されている。
FIG. 1 shows the preheating of a downward-spouted bed type gasifier (a gasifier which injects fuel downward at the inlet of the furnace and reacts with an oxidant and moisture to gasify the gas) downstream of the gasifier. A gasifier equipped with a gasifier preheating device of the present invention,
Shown schematically.

【0018】このガス化炉15は、燃料を高温下で酸化
剤及び水と反応させてガス化するガス化炉本体1と、ガ
ス化されたガス(ガス化ガス)を冷却すべくガス化炉本
体1の下流側に接続されたガスクーラ2と、ガス化炉本
体1の頂部に設けられたバーナ6と、ガス化炉本体1に
燃料(石炭,重油及びメタン等の炭化水素)を供給すべ
くバーナ6に接続された燃料供給手段7と、ガス化炉本
体1に酸化剤(空気等)を供給すべくバーナ6に接続さ
れた酸化剤供給手段8と、排気のためにガス化炉本体1
の頂部に設けられた排気手段10と、運転開始時などに
ガス化炉本体1を予熱すべくガスクーラ2の上部(ある
いはガス化炉本体1の下部)に設けられた予熱バーナ3
と、予熱バーナ3に予熱のための燃料(軽油,プロパン
等)を供給する予熱燃料供給手段4と、予熱バーナ3に
予熱のための燃焼空気を供給する空気供給手段5とから
主に構成される。
The gasification furnace 15 includes a gasification furnace main body 1 for reacting fuel with an oxidizing agent and water at a high temperature to gasify the fuel, and a gasification furnace for cooling a gasified gas (gasification gas). A gas cooler 2 connected to the downstream side of the main body 1, a burner 6 provided on the top of the gasifier main body 1, and a fuel (hydrocarbon such as coal, heavy oil and methane) supplied to the gasifier main body 1. A fuel supply means 7 connected to the burner 6, an oxidant supply means 8 connected to the burner 6 for supplying an oxidant (air or the like) to the gasification furnace main body 1, and a gasification furnace main body 1 for exhaustion.
And a preheating burner 3 provided at an upper part of the gas cooler 2 (or a lower part of the gasification furnace main body 1) for preheating the gasification furnace main body 1 at the start of operation or the like.
And preheating fuel supply means 4 for supplying fuel (light oil, propane, etc.) for preheating to the preheating burner 3 and air supply means 5 for supplying combustion air for preheating to the preheating burner 3. You.

【0019】排気手段10には、流量制御手段11が設
けられる。また、図示されるように、排気手段10にバ
ーナ6を組み込んだ構成にしてもよい。ただし、この場
合は、バーナ6を、暖められて上昇し排気手段10を介
して排気される空気流(下記参照)の熱によって損傷を
受けないように構成する。
The exhaust means 10 is provided with a flow control means 11. Further, as shown in the figure, a configuration in which the burner 6 is incorporated in the exhaust means 10 may be adopted. However, in this case, the burner 6 is configured so as not to be damaged by the heat of the air flow (see below) which is warmed up and exhausted through the exhaust means 10.

【0020】例えば、バーナ6を排気手段10に対して
進退可能に構成し、ガス化炉本体1の予熱が行われる間
バーナ6を排気手段10部から引っ込めるようにしても
よい。あるいは、バーナ6を冷却する冷却装置を設け、
ガス化炉本体1の予熱が行われる間バーナ6を冷却する
ようにしてもよい。あるいは、バーナ6を耐熱性の高い
材料(セラミック等)で構成してもよい。
For example, the burner 6 may be configured to be able to advance and retreat with respect to the exhaust means 10, and the burner 6 may be retracted from the exhaust means 10 while the gasification furnace body 1 is being preheated. Alternatively, a cooling device for cooling the burner 6 is provided,
The burner 6 may be cooled while the gasification furnace main body 1 is being preheated. Alternatively, the burner 6 may be made of a material having high heat resistance (such as ceramic).

【0021】なお、必要であれば、ガス化反応に必要な
水分をガス化炉本体1に供給する水供給手段9を、バー
ナ6に接続して設けてもよい。
If necessary, a water supply means 9 for supplying the water required for the gasification reaction to the gasification furnace main body 1 may be connected to the burner 6.

【0022】また、本好適実施の形態においては、図示
されるように予熱バーナ3,予熱燃料供給手段4及び空
気供給手段5のセットがガスクーラ2の両側に各々設け
られているが、これらの各構成要素の設置数,設置位置
はこの例に限定されず、ガス化炉本体1の予熱が最も効
果的に行われるように適宜変更されてよい。
In this preferred embodiment, a set of preheating burner 3, preheating fuel supply means 4 and air supply means 5 is provided on both sides of gas cooler 2 as shown in the figure. The number of components and the location of the components are not limited to this example, and may be changed as appropriate so that the preheating of the gasifier main body 1 is performed most effectively.

【0023】石炭等の燃料が、燃料供給手段7からバー
ナ6を介してガス化炉本体1内に下向きに噴射される。
同時に、空気等の酸化剤が酸化剤供給手段8から、また
必要であれば水分が水供給手段9から各々バーナ6を介
してガス化炉本体1内に供給され、この結果、燃料,酸
化剤及び水がガス化炉本体1内で反応してガス化され、
ガス化ガス(主にH2 ,CO,CO2 )が発生する。
A fuel such as coal is injected downward from the fuel supply means 7 into the gasifier main body 1 via the burner 6.
At the same time, an oxidant such as air is supplied from the oxidant supply means 8 and, if necessary, water is supplied from the water supply means 9 into the gasification furnace main body 1 via the burner 6, and as a result, fuel, oxidant And water react in the gasification furnace body 1 to be gasified,
Gasification gas (mainly H 2 , CO, CO 2 ) is generated.

【0024】しかし、運転開始時などガス化炉本体1の
温度が比較的低い場合は、ガス化反応が円滑に進行しな
い可能性があるので、燃料,酸化剤などをガス化炉本体
1内に供給する前に、予熱バーナ3によってガス化炉本
体1の内部を暖める(予熱する)。
However, when the temperature of the gasification furnace main body 1 is relatively low, such as at the start of operation, the gasification reaction may not proceed smoothly. Before the supply, the inside of the gasification furnace main body 1 is heated (preheated) by the preheating burner 3.

【0025】すなわち、ガス化炉本体1内部の温度が比
較的低いときには、予熱燃料供給手段4を介して予熱燃
料が、また空気供給手段5を介して燃焼空気が予熱バー
ナ3に供給され、予熱バーナ3で燃焼が行われる。この
燃焼により暖められた空気は、上昇気流となってガス化
炉本体1内を自然に上昇し、排気手段10を介して外部
に排出される。つまり、暖められた空気がガス化炉本体
1内を通過することにより、ガス化炉本体1内部がガス
化反応を開始する上で適当な温度まで予熱される。
That is, when the temperature inside the gasifier main body 1 is relatively low, preheating fuel is supplied to the preheating burner 3 via the preheating fuel supply means 4 and combustion air is supplied to the preheating burner 3 via the air supply means 5. Combustion is performed in the burner 3. The air warmed by this combustion naturally rises in the gasifier main body 1 as an ascending airflow, and is discharged to the outside through the exhaust means 10. That is, by passing the heated air through the gasification furnace main body 1, the inside of the gasification furnace main body 1 is preheated to an appropriate temperature for starting the gasification reaction.

【0026】なお、このとき、予熱燃料または燃料空気
の供給量を変えて予熱バーナでの燃焼を調節したり、あ
るいは排気手段10に設けられた流量制御手段11を介
して上昇流の流量を調節したりすることにより、ガス化
炉本体1内部が予熱される温度を適宜調節してよいのは
勿論である。また、排気手段10の流量制御手段11
は、ガス化炉本体1の予熱が行われるときのみ適宜開閉
され、予熱が行われていないときは閉じられていること
も、勿論である。
At this time, the combustion in the preheating burner is adjusted by changing the supply amount of the preheating fuel or fuel air, or the flow rate of the ascending flow is adjusted through the flow rate control means 11 provided in the exhaust means 10. Of course, the temperature at which the inside of the gasification furnace main body 1 is preheated may be appropriately adjusted. Also, the flow control means 11 of the exhaust means 10
Is opened and closed appropriately only when the preheating of the gasification furnace main body 1 is performed, and is closed when the preheating is not performed.

【0027】こうしてガス化炉本体1内部がガス化反応
に適した温度に予熱された後、上記のように燃料,酸化
剤などがバーナ6を介してガス化炉本体1に供給され、
ガス化が行われる。
After the inside of the gasification furnace main body 1 is preheated to a temperature suitable for the gasification reaction in this way, the fuel, the oxidizing agent and the like are supplied to the gasification furnace main body 1 through the burner 6 as described above.
Gasification takes place.

【0028】ガス化炉本体1内で発生したガス化ガス
は、ガスクーラ2に送られて冷却される。ガスクーラ2
で冷却されたガス化ガスは、図示されない諸設備(脱硫
塔など)で適宜処理され、その後発電等に利用されてか
ら大気放出される。
The gasified gas generated in the gasification furnace main body 1 is sent to a gas cooler 2 and cooled. Gas cooler 2
The gasified gas cooled in the above is appropriately treated in various equipment (not shown) (desulfurization tower or the like), and thereafter is released to the atmosphere after being used for power generation or the like.

【0029】以上、要するに、本発明によれば、下向き
噴流床方式のガス化炉の予熱を行う際、ガス化炉の下部
を予熱バーナで暖めて上昇気流を発生させてこの上昇気
流によってガス化炉の予熱を行うので、予熱バーナをガ
ス化炉の頂部に設置していた従来のようにガス化炉内の
空気を負圧や圧縮空気によってガス化炉から抜き出す必
要がない。従って、より短時間でかつ経済的にガス化炉
のみを予熱することができる。
In summary, according to the present invention, when preheating a gasifier of a downward spouted bed system, the lower part of the gasifier is heated by a preheating burner to generate an ascending airflow, and the ascending gas is generated by the ascending airflow. Since the furnace is preheated, it is not necessary to extract the air in the gasification furnace from the gasification furnace by negative pressure or compressed air as in the conventional case where the preheating burner is installed at the top of the gasification furnace. Therefore, only the gasifier can be preheated in a shorter time and more economically.

【0030】[0030]

【発明の効果】以上、要するに本発明に係るガス化炉の
予熱装置によれば、下向き噴流床方式のガス化炉の予熱
を行う際、ガス化炉の下部を予熱バーナで暖めて上昇気
流を発生させてこの上昇気流によってガス化炉の予熱を
行うので、予熱バーナをガス化炉の頂部に設置する場合
のようにガス化炉内の空気を負圧や圧縮空気によってガ
ス化炉から抜き出す必要がない。従って、より短時間で
かつ経済的にガス化炉のみを予熱することができる。
As described above, in short, according to the gasifier preheating apparatus of the present invention, when preheating a downward spouted bed type gasifier, the lower part of the gasifier is heated by a preheating burner to reduce the rising airflow. Since the gasification furnace is preheated by this rising air flow, the air in the gasification furnace must be extracted from the gasification furnace by negative pressure or compressed air as in the case where a preheating burner is installed at the top of the gasification furnace. There is no. Therefore, only the gasifier can be preheated in a shorter time and more economically.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のガス化炉の予熱装置を備えたガス化炉
の概略図である。
FIG. 1 is a schematic view of a gasification furnace provided with a gasification furnace preheating device of the present invention.

【図2】従来のガス化炉の予熱装置を備えたガス化炉の
概略図である。
FIG. 2 is a schematic view of a gasifier having a conventional gasifier preheating device.

【符号の説明】[Explanation of symbols]

1 ガス化炉本体 3 予熱バーナ 1 Gasifier main body 3 Preheating burner

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 石炭等の炭素化合物から成る燃料をガス
化炉本体の頂部から下向きに噴射して酸素などの酸化剤
及び水と反応させてガス化する下向き噴流床方式のガス
化炉の予熱装置において、ガス化炉本体の下流部にその
内部を熱する予熱バーナを設けたことを特徴とするガス
化炉の予熱装置。
1. Preheating of a downward-spouted bed type gasifier in which a fuel made of a carbon compound such as coal is injected downward from the top of a gasifier main body to react with an oxidant such as oxygen and water to gasify. An apparatus for preheating a gasification furnace, wherein a preheating burner for heating the inside of the gasification furnace body is provided in a downstream portion of the apparatus.
JP10031576A 1998-02-13 1998-02-13 Preheating apparatus for gasification oven Pending JPH11228975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10031576A JPH11228975A (en) 1998-02-13 1998-02-13 Preheating apparatus for gasification oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10031576A JPH11228975A (en) 1998-02-13 1998-02-13 Preheating apparatus for gasification oven

Publications (1)

Publication Number Publication Date
JPH11228975A true JPH11228975A (en) 1999-08-24

Family

ID=12335017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10031576A Pending JPH11228975A (en) 1998-02-13 1998-02-13 Preheating apparatus for gasification oven

Country Status (1)

Country Link
JP (1) JPH11228975A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107880938A (en) * 2016-09-30 2018-04-06 中国科学院工程热物理研究所 Pre-heated classification gasification method and device
WO2023222038A1 (en) * 2022-05-17 2023-11-23 安徽理工大学 Gasification furnace drying furnace device capable of automatically adjusting temperature

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107880938A (en) * 2016-09-30 2018-04-06 中国科学院工程热物理研究所 Pre-heated classification gasification method and device
CN107880938B (en) * 2016-09-30 2023-05-30 中国科学院工程热物理研究所 Preheating type staged gasification method and device
WO2023222038A1 (en) * 2022-05-17 2023-11-23 安徽理工大学 Gasification furnace drying furnace device capable of automatically adjusting temperature

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