JPH0635588B2 - Coal gasifier - Google Patents
Coal gasifierInfo
- Publication number
- JPH0635588B2 JPH0635588B2 JP60058547A JP5854785A JPH0635588B2 JP H0635588 B2 JPH0635588 B2 JP H0635588B2 JP 60058547 A JP60058547 A JP 60058547A JP 5854785 A JP5854785 A JP 5854785A JP H0635588 B2 JPH0635588 B2 JP H0635588B2
- Authority
- JP
- Japan
- Prior art keywords
- coal
- cyclone
- lock
- inlet
- gas
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は石炭のガス化装置に関し、特に高性能でかつ信
頼性の高いチヤー回収循環システムを備えた石炭ガス化
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coal gasifier, and more particularly to a coal gasifier equipped with a highly efficient and highly reliable recovery and recycling system.
（従来の技術） 従来の石炭ガス化装置においては、発生チヤーはサイク
ロン１段のみで捕集してガス化炉へ循環させているが
（特開昭５７〜１３９１８４号公報参照）サイクロンに
よる捕集効率は高々５０〜６０％程度であり、その捕集
効率は極めて悪い。(Prior Art) In a conventional coal gasifier, the generated charge is collected in only one stage of the cyclone and circulated to the gasification furnace (see JP-A-57-139184). The efficiency is at most about 50-60%, and the collection efficiency is extremely poor.
（発明が解決しようとする問題点） 本発明は、高性能かつ信頼性の高いチヤー回収循環シス
テムを有する石炭ガス化装置を提供しようとするもので
ある。(Problems to be Solved by the Invention) The present invention is intended to provide a coal gasifier having a highly efficient and highly reliable charge recovery circulation system.
（問題点を解決するための手段） 本発明は、サイクロンとバグフイルタの組合せによるチ
ヤーの回収の高効率化と、ロツクホツパシステムと加圧
減圧機構によるチヤーの確実な移送手段を特徴とするも
のである。(Means for Solving Problems) The present invention is characterized by a highly efficient collection of a chare by a combination of a cyclone and a bag filter, and a reliable chaper transfer means by a rockhopper system and a pressurization / decompression mechanism. Is.
すなわち、本発明は石炭ガス化炉からの生成ガス出口を
サイクロンの入口に連通させ、同サイクロンのガス出口
をバグフイルタの入口に連通させ、前記サイクロンと前
記バグフイルタとの固形分排出口とをチヤービンの入口
に連結し、同チヤービンの出口をロックホッパ入口のロ
ック弁に連結することにより、ロックシステムを介して
前記石炭ガス化炉に連通した循環ラインを構成してなる
ことを特徴とする石炭ガス化装置である。That is, the present invention communicates the produced gas outlet from the coal gasification furnace to the inlet of the cyclone, communicates the gas outlet of the cyclone to the inlet of the bag filter, and the solid content outlet of the cyclone and the bag filter of the chabin. Coal gasification, characterized by comprising a circulation line communicating with the coal gasification furnace via a lock system by connecting to the inlet and connecting the outlet of the same chabin to the lock valve at the inlet of the lock hopper. It is a device.
以下、本発明の石炭ガス化装置の一実施態様を第１図に
示す。Hereinafter, one embodiment of the coal gasifier of the present invention is shown in FIG.
ガス化炉１において生成するチヤーを含むガス３は、熱
交換器２により約４００℃に温度を下げサイクロン４に
導かれる。こゝでチヤーの一次捕集が行われ、次にバグ
フイルタ５において二次捕集が行われ合計９０〜９５％
以下のチヤー回収を行う（これを粗脱じん６という）。The gas 3 containing the chains produced in the gasification furnace 1 is introduced into the cyclone 4 by lowering the temperature to about 400 ° C. by the heat exchanger 2. 90% to 95% in total, with the primary collection of the chain carried out, and then the secondary collection of the bag filter 5.
The following charge recovery is performed (this is referred to as coarse dust removal 6).
上記粗脱じん６で捕集されたチヤーは、チヤービン８に
集められ、ロツクホツパ９、計量供給ホツパ１０を経て
フイーダ１２に至り、こゝから空気又は不活性ガス１１
によつてチヤー再循環管１３を経て石炭ガス化炉１のコ
ンバスタ部１４に循環投入される。なお図中、１５，１
７は石炭の供給管、１６は空気供給管を示す。The chaper collected by the coarse dust 6 is collected in a chaper bin 8 and reaches a feeder 12 through a rock hopping machine 9 and a metering feeding hopping machine 10, from which air or an inert gas 11 is discharged.
Thus, it is circulated into the combustor section 14 of the coal gasification furnace 1 via the recirculation pipe 13. In the figure, 15,1
Reference numeral 7 indicates a coal supply pipe, and 16 indicates an air supply pipe.
第１図の態様の操作及び制御手段を第２図によつて詳述
する。The operation and control means of the embodiment shown in FIG. 1 will be described in detail with reference to FIG.
サイクロン及びバグフイルタにより捕集されたチヤー
は、自重によりチヤービン８に回収される。The chain collected by the cyclone and the bag filter is collected in the chain bin 8 by its own weight.
ロツク弁１８を開、ロツク弁１９を閉、ベント弁２２を
開の状態でロツクホツパ９の圧力を減じ、チヤービン８
よりチヤーをロツクホツパ９に流下させる。With the lock valve 18 open, the lock valve 19 closed, and the vent valve 22 open, the pressure in the lock hopper 9 is reduced and
The chain is made to flow down to the lock hopper 9.
その後、ロツク弁１８を閉、ベント弁２２を閉の状態に
し、N2加圧弁２３よりN2ガス２１をロツクホツパ９に供
給し、ガス化炉１より１〜２kg／cm2程度高い圧力に加
圧する。Then, closing the lock valve 18, the vent valve 22 in the closed state, is supplied from N 2 pressure valve 23 N 2 gas 21 to Rotsukuhotsupa 9, pressurized to 1-2 kg / cm 2 degrees higher pressure than the gasifier 1 Press.
次に、ロツク２０閉、ベント弁２５開の状態で、ロツク
弁１９を開け、チヤーを計量供給ホツパ１０に移す。計
量供給ホツパ１０内はロードセルが内蔵されており、チ
ヤーの計量を行わせる。Next, with the lock 20 closed and the vent valve 25 open, the lock valve 19 is opened, and the charge is transferred to the metering hopper 10. The metering supply hopper 10 has a built-in load cell for metering the charge.
その後、ロツク弁１９閉、ベント弁２５閉、ロツク２０
を開としてチヤーを下方のフイーダ１２に送り、高圧空
気または不活性ガス１１の助けによりガス化炉へ搬送投
入される。After that, the lock valve 19 is closed, the vent valve 25 is closed, and the lock 20 is closed.
Is opened to send the chain to the lower feeder 12, and is fed into the gasification furnace with the help of high-pressure air or inert gas 11.
上記操作は計量供給ホツパ１０内のロードセルにてチヤ
ー量を計測し、ロツクホツパシステムの間欠運転にフイ
ードバツクさせる。In the above operation, the amount of charge is measured by the load cell in the metering supply hopper 10, and the intermittent operation of the lock hopper system is fed back.
以上、第１図、第２図によつて説明したことから明らか
なように、本発明の石炭ガス化装置は高性能かつ信頼性
の高いチヤー回収システムを有しており、その上工業的
効果は顕著である。As is apparent from what has been described above with reference to FIGS. 1 and 2, the coal gasifier of the present invention has a high-performance and highly-reliable chain recovery system, and also has an industrial effect. Is remarkable.
なお、これまでの説明においては、ガス化炉本体につい
ての具体的な説明はしなかつたが、ガス化炉本体の構成
はどのようなものでも本発明は有利に適用しうる。特に
好ましい態様の概略図を第３図に示す。In the above description, the gasification furnace main body has not been specifically described, but the present invention can be advantageously applied to any structure of the gasification furnace main body. A schematic diagram of a particularly preferred embodiment is shown in FIG.
第３図において、ガス化炉は通常約４０kg／cm2Ｇで操
作されるもので、コンバスタ１、デイフユーザ２、およ
びレダクタ３の三つの部分からなり、水冷壁４にて周囲
を囲まれ、炉内側に比較的薄い（約５０mm以下）耐熱・
耐火材５が内張りされている。In FIG. 3, the gasification furnace is usually operated at about 40 kg / cm 2 G and is composed of three parts, a combustor 1, a diff user 2, and a reductor 3, surrounded by a water cooling wall 4, Heat resistance that is relatively thin inside (approximately 50 mm or less)
The refractory material 5 is lined.
コンバスタ１には石炭１０の一部、循環チヤー１６およ
び空気またはO2１１が投入され、高温状態（１４００〜
１８００℃）に維持され、灰の溶融排出が行われるとと
もに、上部でのガス化に必要な熱を供給する。ガス化剤
（空気またはO2）は図示省略のコンプレツサにより昇圧
され、炉内に供給される。The combustor 1 is charged with a part of the coal 10, the circulation chain 16 and air or O 2 11 and is heated to a high temperature (1400-400).
(1800 ° C.), the ash is melted and discharged, and the heat necessary for gasification in the upper part is supplied. The gasifying agent (air or O 2 ) is pressurized by a compressor (not shown) and supplied into the furnace.
デイフユーザ２には残りの石炭１２が投入され乾留され
るとともに、ガスとの均一な混合、流れの平均化が行わ
れる。コンバスタ１、デイフユーザ２への石炭の投入
は、微粉砕した石炭を図示省略のロツクホツパシステム
により加圧され、炉内に搬送される。The remaining coal 12 is charged into the diff user 2 and carbonized, and the gas 12 is uniformly mixed with the gas and the flow is averaged. In the charging of coal to the combustor 1 and the diff user 2, finely pulverized coal is pressurized by a rock-hopper system (not shown) and conveyed into the furnace.
レダクタ３においては炭素粒のガス化およびガスの冷却
が行われ発生したチヤーは図示省略の捕集器によつて捕
集され、前記コンバスタ１に循環チヤーとして再投入さ
れる（第１図，第２図参照）。In the reductor 3, the carbon particles are gasified and the gas is cooled, and the generated char is collected by a collector (not shown) and is re-introduced into the combustor 1 as a circulation charge (see FIGS. 1 and 1). (See Figure 2).
コンバスタ１下部には灰ホツパ９が設けられ流下した溶
融スラグはここで水冷され、水冷スラグ１５として外部
に排出される。An ash hopper 9 is provided below the combustor 1, and the molten slag that has flowed down is water-cooled here and is discharged to the outside as a water-cooled slag 15.
水冷壁４には入口管寄８から冷却水が供給され水冷壁４
を水冷するようにしている。The cooling water is supplied from the inlet pipe side 8 to the water cooling wall 4.
Is water cooled.
レダクタ３出口には熱交換器７が設置されガスを所定温
度（約４００℃）まで冷却するとともに、有効な熱回収
を行う。A heat exchanger 7 is installed at the outlet of the reductor 3 to cool the gas to a predetermined temperature (about 400 ° C.) and to effectively recover heat.
ガス化炉全体は圧力容器６内に収容され、炉内と圧力容
器との間の空間部に差圧検出器１３によつて制御される
弁の作用によつて不活性ガス１４が注入され、差圧が制
御されるようになつている。The entire gasification furnace is housed in the pressure vessel 6, and the inert gas 14 is injected into the space between the furnace and the pressure vessel by the action of the valve controlled by the differential pressure detector 13. The differential pressure is controlled.
このような構成を採るガス化炉を採用すると、 (1) 燃料のガス化反応時における吸熱特性を主として
利用して、炉出口ガス温度を適正値（灰の軟化点以下）
に制御することができるので、高いガス化効率が得られ
る。When a gasification furnace adopting such a configuration is adopted, (1) The furnace end gas temperature is set to an appropriate value (below the ash softening point) by mainly utilizing the endothermic characteristics during the fuel gasification reaction.
Therefore, high gasification efficiency can be obtained.
即ち、水クエンチあるいはラデアントクーラ方式による
熱の損失がなくなるという利点を有する。That is, there is an advantage that heat loss due to the water quench or the radiant cooler system is eliminated.
(2) 上記(1)の効果と、水冷壁で裏打ちされた薄い耐火
断熱材の効果（耐火・断熱材の炉内面温度が高温となつ
ても耐火・断熱材は比較的薄いので裏側の水冷壁に放熱
し易く炉内温度を耐火・断熱材を損傷させることなく高
くすることができる）によりコンバスタ内温度を十分高
く（１４００〜１８００℃）できる。従つて灰の溶融温
度の高い石炭の使用も可能となり、炭種適合性に優れて
いる。(2) The effect of (1) above and the effect of a thin refractory insulation lined with a water-cooling wall (even if the temperature inside the furnace of the refractory / insulation is high, the refractory / insulation is relatively thin, so the water-cooling of the backside is The temperature inside the combustor can be made sufficiently high (1400 to 1800 ° C.) by easily radiating heat to the wall and raising the temperature inside the furnace without damaging the fireproof / heat insulating material. Therefore, it becomes possible to use coal with a high melting temperature of ash, and the coal type compatibility is excellent.
(3) デイフユーザを設けることにより、高温ガスと燃
料の均一混合、ガス流れの安定化をはかることができ、
高いガス化効率を得ることができる。(3) By installing a diff user, it is possible to achieve uniform mixing of high-temperature gas and fuel and stabilization of the gas flow.
High gasification efficiency can be obtained.
(4) 厚い寸法の耐熱材、断熱材の排除により、起動特
性の改善がはかられる。(4) Starting characteristics can be improved by eliminating thick heat-resistant materials and heat insulating materials.
(5) ガス化炉と圧力容器との間に加圧不活性ガスを注
入することにより、水冷壁を、ガス化炉の内圧による変
形から守り、高い信頼性を維持することができる。(5) By injecting a pressurized inert gas between the gasification furnace and the pressure vessel, the water cooling wall can be protected from deformation due to the internal pressure of the gasification furnace, and high reliability can be maintained.
第１図は本発明石炭ガス化装置の一実施態様を示す図、
第２図は第１図装置の操作及び制御手段を説明するため
の図、第３図は本発明の石炭ガス化装置に有利に適用し
うる石炭ガス化炉本体の構造を示す図である。FIG. 1 is a diagram showing an embodiment of a coal gasification apparatus of the present invention,
FIG. 2 is a view for explaining the operation and control means of the apparatus of FIG. 1, and FIG. 3 is a view showing the structure of a coal gasification furnace main body which can be advantageously applied to the coal gasification apparatus of the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 古閑 義孝 東京都千代田区丸の内２丁目５番１号 三 菱重工業株式会社内 (56)参考文献 特開 昭59−113093（ＪＰ，Ａ) 特開 昭59−176391（ＪＰ，Ａ) 特開 昭56−16592（ＪＰ，Ａ) 特開 昭60−4593（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshitaka Koga 2-5-1, Marunouchi, Chiyoda-ku, Tokyo Sanryo Heavy Industries Co., Ltd. (56) Reference JP 59-113093 (JP, A) JP Sho 59-176391 (JP, A) JP-A-56-16592 (JP, A) JP-A-60-4593 (JP, A)
Claims (1)
ロンの入口に連通させ、同サイクロンのガスの出口をバ
グフィルタの入口に連通させ、前記サイクロンと前記バ
グフィルタとの固形分排出口とをチャービンの入口に連
結し、同チャービンの出口をロックホッパ入口のロック
弁に連結することにより、ロックシステムを介し前記石
炭ガス化炉に連通した循環ラインを構成してなることを
特徴とする石炭ガス化装置。1. A produced gas outlet from a coal gasification furnace is communicated with an inlet of a cyclone, an outlet of the gas of the cyclone is communicated with an inlet of a bag filter, and a solid content outlet of the cyclone and the bag filter is provided. Is connected to the inlet of the charbin, and the outlet of the charbin is connected to the lock valve of the lock hopper inlet, thereby forming a circulation line communicating with the coal gasifier through a lock system. Gasifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058547A JPH0635588B2 (en) | 1985-03-25 | 1985-03-25 | Coal gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058547A JPH0635588B2 (en) | 1985-03-25 | 1985-03-25 | Coal gasifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61218692A JPS61218692A (en) | 1986-09-29 |
| JPH0635588B2 true JPH0635588B2 (en) | 1994-05-11 |
Family
ID=13087478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60058547A Expired - Lifetime JPH0635588B2 (en) | 1985-03-25 | 1985-03-25 | Coal gasifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635588B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0631348B2 (en) * | 1987-07-17 | 1994-04-27 | 株式会社日立製作所 | Generator Charging Device for Gasification Plant |
| DE4041936C1 (en) * | 1990-12-27 | 1992-09-24 | Deutsche Voest-Alpine Industrieanlagenbau Gmbh, 4000 Duesseldorf, De | |
| JP6700773B2 (en) | 2015-12-18 | 2020-05-27 | 三菱日立パワーシステムズ株式会社 | Char discharging device, char collecting device having the same, char discharging method, integrated gasification combined cycle facility |
| CN111996037A (en) * | 2020-08-25 | 2020-11-27 | 哈尔滨锅炉厂有限责任公司 | Positive pressure cold ash system for biomass fluidized bed gasification furnace |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247302A (en) * | 1979-07-13 | 1981-01-27 | Texaco Inc. | Process for gasification and production of by-product superheated steam |
| JPS5844717B2 (en) * | 1979-09-28 | 1983-10-05 | ブレンシユトフインステイトウ−ト フライベルク | Reactor for gas production by partial oxidation |
| JPS58154797A (en) * | 1982-03-10 | 1983-09-14 | Babcock Hitachi Kk | Starting spouted-bed coal gasifier |
| US4489562A (en) * | 1982-11-08 | 1984-12-25 | Combustion Engineering, Inc. | Method and apparatus for controlling a gasifier |
| JPS59176391A (en) * | 1983-03-28 | 1984-10-05 | Hitachi Ltd | Coal gasifying oven |
| JPS604593A (en) * | 1983-06-24 | 1985-01-11 | Nippon Kokan Kk <Nkk> | Method and apparatus for coal gasification |
-
1985
- 1985-03-25 JP JP60058547A patent/JPH0635588B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61218692A (en) | 1986-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |