JPS5821955B2 - Coal gasification equipment using molten slag heat - Google Patents
Coal gasification equipment using molten slag heatInfo
- Publication number
- JPS5821955B2 JPS5821955B2 JP13891277A JP13891277A JPS5821955B2 JP S5821955 B2 JPS5821955 B2 JP S5821955B2 JP 13891277 A JP13891277 A JP 13891277A JP 13891277 A JP13891277 A JP 13891277A JP S5821955 B2 JPS5821955 B2 JP S5821955B2
- Authority
- JP
- Japan
- Prior art keywords
- slag
- temperature
- reactor
- coal
- granular
- 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
Links
Description
【発明の詳細な説明】
本発明は、製鉄所の高炉、転炉等の溶融スラグの廃熱を
利用した石炭のガス化装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coal gasification apparatus that utilizes waste heat of molten slag from blast furnaces, converters, etc. of steel plants.
石炭のガス化プロセスは、原料の大きさ、ガス化剤、ガ
ス化温度、圧力等により各種のガス化炉が開発されてい
るが、これら従来のガス化プロセスは、最低温度が少な
くとも８０℃以上必要であるから、ガス化剤として多量
の燃料を消費するという欠点があった。In the coal gasification process, various gasification furnaces have been developed depending on the size of the raw material, gasification agent, gasification temperature, pressure, etc. However, in these conventional gasification processes, the minimum temperature is at least 80℃ or higher. Since it is necessary, there is a drawback that a large amount of fuel is consumed as a gasifying agent.
石炭、特に低品質の微粉炭から容易に、かつ安価な高エ
ネルギの燃料ガスが得られれば、新しい装置産業が生ま
れるものと期待される。If high-energy fuel gas can be easily obtained from coal, especially low-quality pulverized coal, it is expected that a new equipment industry will be created.
本発明は、上記各種の石炭のガス化プロセスが必要とし
ている多量の燃料を必要とすることなく、石炭、特に低
品質の微粉炭から容易に、かつ安価な高エネルギの燃料
ガスを得ることを目的として提案されたもので、樋を介
して連続的に流出する高温溶融スラグを飛散させて粒状
化する手段、同粒状化手段により粒状化された高温スラ
グを受は入れ、所定量に達したとき該高温粒状スラグを
放出するスラグ溜り、同スラグ溜りから放出された高温
粒状スラグを受は入れ、その温度、熱量等を適当に調整
し、必要に応じて該高温粒状スラグを放出するスラグ槽
、同スラグ槽から放出された高温粒状スラグを受は入れ
る反応炉、同反応炉内に微粉炭もしくは粒状石炭を、上
記高温粒状スラグの受入れと同時に噴射投入する手段該
反応炉内で発生したガスを貯留するガスホルダおよび該
反応炉内の残留物を受は入れ、これを冷却したのち外部
に排出する分離槽を具備してなることを特徴とする溶融
スラグ熱を利用する石炭のガス化装置に係るものである
。The present invention makes it possible to easily and inexpensively obtain high-energy fuel gas from coal, especially low-quality pulverized coal, without requiring the large amount of fuel required by the various coal gasification processes described above. This method was proposed for the purpose of scattering and granulating high-temperature molten slag that continuously flows out through a gutter, and receiving the high-temperature slag granulated by the same granulating means until it reaches a predetermined amount. A slag tank which receives the high temperature granular slag released from the slag pool, adjusts its temperature, calorific value, etc. appropriately, and discharges the high temperature granular slag as necessary. , a reactor for receiving high-temperature granular slag discharged from the slag tank, and means for injecting pulverized coal or granular coal into the reactor at the same time as receiving the high-temperature granular slag; gas generated in the reactor; A coal gasification apparatus that utilizes heat from molten slag, characterized in that it is equipped with a gas holder for storing molten slag and a separation tank for receiving the residue in the reactor, cooling it, and discharging it to the outside. This is related.
以下添付図面に示す実施例により本発明につき具体的に
説明する。The present invention will be specifically described below with reference to embodiments shown in the accompanying drawings.
図において１は１５００℃〜１６００℃の溶融スラグを
受は入れるノ山々ン、２はタンディツシュ、３は樋で、
ノロパン１からの高温の溶融スラグはタンディツシュ２
、樋３を経て該樋３の下端から定量ずつ連続的に流出す
るようになっている。In the figure, 1 is a mountain that receives molten slag at a temperature of 1500°C to 1600°C, 2 is a tundish, and 3 is a gutter.
The high temperature molten slag from Noropan 1 is transferred to Tanditshu 2.
, a gutter 3, and then continuously flows out from the lower end of the gutter 3 in fixed amounts.
４は噴射ノズル４ａを有するブロアで、そ°の噴射ノズ
ル４ａは上記樋３の下端流出口近傍に設置されており、
ブロア４の噴射ノズル４ａから噴射される高圧な空気流
によって樋３から流出する高温な溶融スラグは吹き飛ば
されて溶融状態から細粒化されるとともに１１００℃前
後まで冷却され、粒状スラグ７となって後述する回転ド
ラム５内を経てホッパ部６ａを有するスラグ溜り６内に
蓄積されるようになっている。4 is a blower having an injection nozzle 4a, and the injection nozzle 4a is installed near the lower end outlet of the gutter 3,
The high-temperature molten slag flowing out from the gutter 3 is blown away by the high-pressure air flow injected from the injection nozzle 4a of the blower 4, and the molten slag is turned into fine particles and cooled to around 1100°C, becoming granular slag 7. The slag passes through a rotating drum 5, which will be described later, and is accumulated in a slag reservoir 6 having a hopper portion 6a.
そして上記ブロア４とその噴射ノズル４ａにより樋３か
ら連続的に流下する溶融スラグを飛散させて粒状化する
手段を形成している。The blower 4 and its injection nozzle 4a form a means for scattering and granulating the molten slag continuously flowing down from the gutter 3.
回転ドラム５は図示の如く截頭円錐筒状に形成され、そ
の小径開口側に、上記の樋３の下端および噴射ノズル４
ａが臨むように設置されており、またその大径開口側は
、スラグ溜り６の側壁に図示の如く回転自在に装着され
ていて、図示省略の駆動源により矢印に示す方向に駆動
回転せしめられるようになっている。As shown in the figure, the rotating drum 5 is formed into a truncated conical cylinder shape, and the lower end of the gutter 3 and the injection nozzle 4 are connected to the small diameter opening side of the rotating drum 5.
The large-diameter opening side is rotatably attached to the side wall of the slag sump 6 as shown in the figure, and is driven and rotated in the direction shown by the arrow by a drive source (not shown). It looks like this.
また上記噴射ノズル４ａからの高圧空気流によって細粒
化されない粒状より大きいものは、回転ドラム５内に落
下し該ドラム５の回転運動によりスラグ溜り６のホッパ
部６ａへ送り出されるようになっている。Larger particles that are not reduced to fine particles by the high-pressure air flow from the injection nozzle 4a fall into the rotating drum 5, and are sent to the hopper section 6a of the slag reservoir 6 by the rotational movement of the drum 5. .
８は該スラグ溜り６のホッパ部６ａに図示の如く連設さ
れたスラグ槽で、ホッパ部６ａに一定量めスラグが溜る
と該ホッパ部６ａの下端開口に設置されたベル１１を降
下させることによりスラグ槽８内に粒状スラグを落下さ
せるようになっている。Reference numeral 8 denotes a slag tank connected to the hopper section 6a of the slag reservoir 6 as shown in the figure, and when a certain amount of slag accumulates in the hopper section 6a, a bell 11 installed at the lower end opening of the hopper section 6a is lowered. The granular slag is caused to fall into the slag tank 8.
また該スラグ槽８には図示省略の制御装置が設けられて
いて、該スラグ槽８内の高温のスラグの温度、熱量等を
後述する反応炉内の反応状態に合せて適当に制−するよ
うになっている。The slag tank 8 is also equipped with a control device (not shown), which controls the temperature, heat amount, etc. of the high-temperature slag in the slag tank 8 appropriately according to the reaction state in the reactor, which will be described later. It has become.
そして粒状スラグのスラグ槽８内への落下が終ると、ベ
ル１１を上げると同時に、スラグ槽８に設けられたベル
１２を下げて高温の粒状スラグを該スラグ槽８の下ガに
図示の如（連接された反応炉９内に投入するようになっ
ている。When the granular slag has finished falling into the slag tank 8, the bell 11 is raised and at the same time the bell 12 provided in the slag tank 8 is lowered to dump the high temperature granular slag into the lower gutter of the slag tank 8 as shown in the figure. (It is designed to be charged into the connected reactor 9.
１６は該反応炉９の斜上方に設置され、噴射装置（図示
せず）をもつ複数個の薇粉炭槽で、それら微粉炭槽１６
内には微粉炭もしくは粒状の石炭が装入されており、反
応炉９内に上記のようにして高温な細粒状のスラグが投
入されたとき、反応に必要な量の微粉炭もしくは粒状の
石炭が噴射装置により反応炉９内に噴射投入されるよう
になっている。Reference numeral 16 indicates a plurality of pulverized coal tanks installed obliquely above the reactor 9 and each having an injection device (not shown).
Pulverized coal or granular coal is charged in the reactor 9, and when the high temperature fine granular slag is charged into the reactor 9 as described above, the amount of pulverized coal or granular coal necessary for the reaction is released. is injected into the reactor 9 by an injection device.
２２はボイラで同ボイラ２２からは、反応炉９内での反
応に必要な水蒸気（反応剤）が該反応炉９内に送られる
ようになってい、る。22 is a boiler from which steam (reactant) necessary for the reaction in the reactor 9 is sent into the reactor 9.
１７はサイクロン、１８は熱交換器、１９はブロア、２
０は集塵装置、２１はガスホルダで、それら部材は図示
の如く直列的に配置されており、ブロア１９の吸引作用
で、上記反応炉９内で石炭のガス化のための吸熱反応で
発生したＣＯ２Ｈ２，Ｎ２等の混合ガスが、サイクロン
１７で除塵されたのち、熱交換器１８で冷却され、集塵
装置２０でさらに清浄化されてガスホルダ２１内に蓄え
られるようになっている。17 is a cyclone, 18 is a heat exchanger, 19 is a blower, 2
0 is a dust collector, 21 is a gas holder, these members are arranged in series as shown in the figure, and the suction action of the blower 19 generates an endothermic reaction for gasifying coal in the reactor 9. After a mixed gas of CO2H2, N2, etc. is removed by a cyclone 17, it is cooled by a heat exchanger 18, further purified by a dust collector 20, and stored in a gas holder 21.
一方、反応炉９内で反応後の残留物たとえば粒状スラグ
、灰等は反応炉９のベル１３を下げて該反応炉９の下部
に図示の如く連設され、下端に排出ゲート１５をもつ分
離槽１０内に溜められるようになっている。On the other hand, residues after the reaction in the reactor 9, such as granular slag, ash, etc., are separated by lowering the bell 13 of the reactor 9 and connected to the lower part of the reactor 9 as shown in the figure, with a discharge gate 15 at the lower end. It is designed to be stored in a tank 10.
２３は上記分離槽１０の外周近傍に設置された環状管１
４およびその枝管１４ａを介して分離槽１０内に外気を
吹込むブロアで、同ブロア２３によって分離槽１０内に
吹き込まれた外気により、該分離槽１０内に溜められた
未だ高温の残留物を冷却したのち、排出ゲート１５から
抜き出すようになっている。23 is an annular pipe 1 installed near the outer periphery of the separation tank 10.
4 and its branch pipe 14a into the separation tank 10, the outside air blown into the separation tank 10 by the blower 23 removes the still high temperature residue accumulated in the separation tank 10. After cooling, it is extracted from the discharge gate 15.
また分離槽１０内で高温の残留物入熱交換して温められ
た空気は、サイクロン２４で除塵されたのち、配管２５
を介して上記熱交換器１８の高温排気とともに微粉炭等
の原料の乾燥や予熱等に利用されるようになっている。In addition, the air warmed by heat exchange with high-temperature residue in the separation tank 10 is removed from the air by the cyclone 24, and then removed from the pipe 25.
It is used for drying, preheating, etc. of raw materials such as pulverized coal together with the high temperature exhaust from the heat exchanger 18 via the heat exchanger 18.
本発明の石炭のガス化装置の一実施例は上記のように構
成されており、いま、本装置の運転を開始スると、ノロ
パン１からタンディツシュ２を経て樋３の下端から連続
的に流出する高温（１５０℃〜１６００℃）の溶融スラ
グは、ブロア４の噴射ノズル４ａからの高圧噴射空気に
よって吹き飛ばれて回転ドラム５中を飛 し、数耗径の
固形粒状スラグ７となってスラグ溜り６のホッパ部りａ
内に溜る。One embodiment of the coal gasification apparatus of the present invention is constructed as described above, and when the operation of this apparatus is started, the coal gasification device continuously flows from the bottom pan 1 through the tundish 2 and from the lower end of the gutter 3. The high-temperature (150°C to 1600°C) molten slag is blown away by the high-pressure jet air from the jet nozzle 4a of the blower 4 and flies through the rotating drum 5, becoming solid granular slag 7 with several worn diameters and depositing it in a slag pool. 6 hopper part a
Accumulate inside.
（このときベル１１は上昇してホッパ部６ａの下端開口
を閉じている。(At this time, the bell 11 rises to close the lower end opening of the hopper section 6a.
）このときの粒状スラグ７の温度は１１００℃前後に冷
却される。) At this time, the temperature of the granular slag 7 is cooled to around 1100°C.
また上記高圧噴射空気によってもなお細粒化されないス
ラグは回転ドラム５内に落下し、該ドラム５の回転運動
によってスラグ溜り６のホッパ部６ａに送り込まれる。Furthermore, the slag that is not reduced to fine particles even by the high-pressure jet air falls into the rotating drum 5, and is sent into the hopper section 6a of the slag reservoir 6 by the rotational movement of the drum 5.
そして該スラグ溜り６内に所定量の細粒状の高温スラグ
が溜ると、ベル１１が下降し、該スラグ溜り６のホッパ
部６ａの下端開口が開放され、細粒状の高温スラグは下
方のスラグ槽８内に落下し、該スラグ槽８内で温度調整
されて貯溜される。When a predetermined amount of fine-grained high-temperature slag accumulates in the slag pool 6, the bell 11 descends, the lower end opening of the hopper portion 6a of the slag pool 6 is opened, and the fine-grained high-temperature slag is transferred to the lower slag tank. The slag falls into the slag tank 8, where the temperature is adjusted and the slag is stored.
（この場合、ベル１２は上昇しており、スラグ槽８の下
端開口は閉じられている。(In this case, the bell 12 is raised and the lower end opening of the slag tank 8 is closed.
）そしてスラグ溜り６のホッパ部６ａからスラグ槽８内
への細粒状の高温スラグの落下が終ると、ベル１１が上
昇し、ベル１２が下降してスラグ槽８内の一定量の細粒
状高温スラグは反応炉９内に投入される。) When the fine-grained high-temperature slag has finished falling from the hopper portion 6a of the slag pool 6 into the slag tank 8, the bell 11 rises, and the bell 12 descends to release a certain amount of fine-grained high-temperature slag in the slag tank 8. The slag is charged into the reactor 9.
（この場合、ベル１３は閉じられている。(In this case, the bell 13 is closed.
）これと同時に反応炉９内には複数個の微粉炭槽１６か
ら必要量の微粉炭もしくは粒状の石炭が噴射装置によっ
て噴射されるともに、ボイラ２２から水蒸気が送り込ま
れる。) At the same time, a necessary amount of pulverized coal or granular coal is injected into the reactor 9 from the plurality of pulverized coal tanks 16 by the injection device, and steam is sent from the boiler 22.
そうすると反応炉９の空間で微粉炭のガス化のための吸
熱反応を起り、ＣＯ２Ｈ２，Ｎ２等の混合ガス発生する
。Then, an endothermic reaction for gasifying the pulverized coal occurs in the space of the reactor 9, generating a mixed gas such as CO2H2 and N2.
この混合ガスは、ブロア１９の吸引作用でサイクロン１
７で除塵され、熱交換器１８で冷却されたのち、集塵装
置２０でさらに清浄化されてガスホルダ２１に蓄えられ
る。This mixed gas is transferred to the cyclone 1 by the suction action of the blower 19.
After being removed in step 7 and cooled in a heat exchanger 18, it is further cleaned in a dust collector 20 and stored in a gas holder 21.
一方、反応炉９内での反応後分離槽１０内に落された（
この場合ベル１３は開放される。On the other hand, after the reaction in the reactor 9, the water was dropped into the separation tank 10 (
In this case, the bell 13 is opened.
）残留物、たうえば粒状スラグ、灰等は未だ高温である
からブロア２３で外気を環状管１４およびその枝管１４
ａを通して該分離槽１０内に送って十分に冷却したのち
、分離槽下部の排出ゲート１５から外部へ抜き出す。) Residues, such as granular slag and ash, are still at high temperatures, so the blower 23 blows outside air through the annular pipe 14 and its branch pipes 14.
After being sent into the separation tank 10 through a passageway a and sufficiently cooled, it is extracted to the outside through the discharge gate 15 at the bottom of the separation tank.
この場合該分離槽１０内で残留物の熱によって温められ
た空気はサイクロン２４で除塵されたのち、上記熱交換
器１８の高温排気とともに、微粉炭等の原料の乾燥や予
熱に利用される。In this case, the air heated by the heat of the residue in the separation tank 10 is removed with dust by the cyclone 24, and then used together with the high-temperature exhaust from the heat exchanger 18 for drying and preheating raw materials such as pulverized coal.
本発明の石炭ガス化装置は、上記のような構成、作用を
具有するものであるから本発明によれば、（１）、低品
質石炭、微粉炭を高品質で取扱いの容易なガスエネルギ
に変換することができる。Since the coal gasifier of the present invention has the above-described configuration and operation, (1) it converts low-quality coal and pulverized coal into high-quality and easy-to-handle gas energy; can be converted.
（２）、石炭のガス化に必要な熱量や水蒸気はともに従
来から廃棄されていた溶融スラグ熱から容易に得られる
ので、石炭のガス化反応の燃料費は零となり、経済的な
石炭のガス化装置を得ることができる。(2) Both the heat and steam required for coal gasification can be easily obtained from the heat of molten slag, which has traditionally been discarded, so the fuel cost for the coal gasification reaction becomes zero, making it an economical way to convert coal into gas. You can obtain a conversion device.
（３）、溶融スラグは、細粒化された状態で石灰のガス
化に利用されるため、反応熱量および温度の制御や操作
が容易である。(3) Since the molten slag is used in the gasification of lime in a finely granulated state, it is easy to control and operate the reaction heat amount and temperature.
などの実用的効果を挙げることができる。The following practical effects can be mentioned.
添付図面は、本発明の一実施例の一部を断面で示す概略
説明図である。
１：ノロパン、２ニタンデイ゛ンシユ、３：樋、４．１
９，２３ニブロア、４ａ二噴射ノズル、５：回転ドラム
、６ニスラグ溜り、８ニスラグ槽、９：反応炉、１０：
分離槽、１１，１２，１３：ベル、１６：微粉炭槽、１
７，２４：サイクロン、１８：熱交換器、２０：集塵装
置、２１：ガスホルダ。The accompanying drawings are schematic explanatory views showing a part of an embodiment of the present invention in cross section. 1: Noropan, 2 Nitandanshi, 3: Gutter, 4.1
9, 23 Ni blower, 4a dual injection nozzle, 5: rotating drum, 6 varnish slag reservoir, 8 varnish slag tank, 9: reactor, 10:
Separation tank, 11, 12, 13: Bell, 16: Pulverized coal tank, 1
7, 24: Cyclone, 18: Heat exchanger, 20: Dust collector, 21: Gas holder.
Claims (1)
させて粒状化する手段、同粒状化手段により粒状化され
た高温スラグを受は入れ、所定量に達したとき該高温粒
状スラグを放出するスラグ溜り、同スラグ溜りから放出
された高温粒状スラグを受は入れ、その温度、熱量等を
適当に調整し、必要に応じて該高温粒状スラグを放出す
るスラグ槽、同スラグ槽から放出された高温粒状スラグ
を受は入れる反応炉、同反応炉内に微務炭もしくは粒状
石炭を、上記高温粒状スラグの受入れと同時に噴射投入
する手段該反応炉内で発生したガスを貯留するガスホル
ダおよび該反応炉内の残留物を受は入れ、これを冷却し
たのち外部に排出する分離槽を具備してなることを特徴
とする溶融スラグ熱を利用する石炭のガス化装置。1 A means for scattering and granulating the high temperature molten slag that continuously flows out through the gutter, receiving the high temperature slag granulated by the granulating means, and releasing the high temperature granular slag when a predetermined amount is reached. A slag tank that receives the high-temperature granular slag released from the slag pool, adjusts its temperature, calorific value, etc. appropriately, and releases the high-temperature granular slag as necessary; A reactor for receiving the high-temperature granular slag, a means for injecting fine coal or granular coal into the reactor at the same time as the high-temperature granular slag is received, a gas holder for storing the gas generated in the reactor, and a gas holder for storing the gas generated in the reactor. A coal gasification apparatus that utilizes heat from molten slag, and is equipped with a separation tank that receives residue in a reactor, cools it, and then discharges it to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13891277A JPS5821955B2 (en) | 1977-11-21 | 1977-11-21 | Coal gasification equipment using molten slag heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13891277A JPS5821955B2 (en) | 1977-11-21 | 1977-11-21 | Coal gasification equipment using molten slag heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5472204A JPS5472204A (en) | 1979-06-09 |
| JPS5821955B2 true JPS5821955B2 (en) | 1983-05-04 |
Family
ID=15233037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13891277A Expired JPS5821955B2 (en) | 1977-11-21 | 1977-11-21 | Coal gasification equipment using molten slag heat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5821955B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0514456Y2 (en) * | 1988-02-17 | 1993-04-16 | ||
| JP2009535287A (en) * | 2006-04-28 | 2009-10-01 | ターター スチール リミテッド | Method for producing hydrogen gas by thermo-chemical decomposition of water using steelworks slag and waste materials |
-
1977
- 1977-11-21 JP JP13891277A patent/JPS5821955B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0514456Y2 (en) * | 1988-02-17 | 1993-04-16 | ||
| JP2009535287A (en) * | 2006-04-28 | 2009-10-01 | ターター スチール リミテッド | Method for producing hydrogen gas by thermo-chemical decomposition of water using steelworks slag and waste materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5472204A (en) | 1979-06-09 |
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