JPS601521B2 - Fluidized bed waste heat boiler - Google Patents
Fluidized bed waste heat boilerInfo
- Publication number
- JPS601521B2 JPS601521B2 JP5695076A JP5695076A JPS601521B2 JP S601521 B2 JPS601521 B2 JP S601521B2 JP 5695076 A JP5695076 A JP 5695076A JP 5695076 A JP5695076 A JP 5695076A JP S601521 B2 JPS601521 B2 JP S601521B2
- Authority
- JP
- Japan
- Prior art keywords
- fluidized
- fluidized bed
- temperature gas
- fluidized medium
- medium
- 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
Landscapes
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
【発明の詳細な説明】
本発明はタールおよびダストを含む高温ガスの廃熱を有
効に利用することができる流動床廃熱ボイラに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluidized bed waste heat boiler that can effectively utilize waste heat of high temperature gas containing tar and dust.
乾留ゾーンを有する石炭ガス化炉、またはコークス炉な
どの高温ガス発生炉から高温生成ガス中にはかなりの量
のタールおよび卜が含まれている。この高温生成ガスか
ら熱回収を図ろうとする場合、従来型式の通常の廃熱ボ
ィラでは高温生成ガスの冷却過程において、伝熱面にガ
ス中のタール、ダストが付着して閉塞を起こすので、従
来はガス中のタール、ダストを除去した後でないと、生
成ガスから熱回収を行うことは困難であるという欠点が
あった。本発明は上記の欠点を解消するためになされた
もので、高温ガス発生炉から石炭灰、コークスなどを流
動媒体として用い、この流動媒体に高温ガス中のタール
およびダストを付着・俺集せしめ、さらにタールおよび
ダストを付着・瓶集した流動媒体を高温ガス発生炉へ循
環させることにより、タールおよびダストを含む高温ガ
スからの熱回収を効率よく行うことができる流動床廃熱
ボィラの提供を目的とするものである。Significant amounts of tar and tar are contained in the high temperature product gas from a high temperature gas generator such as a coal gasifier having a carbonization zone or a coke oven. When trying to recover heat from this high-temperature generated gas, in conventional waste heat boilers, tar and dust in the gas adhere to the heat transfer surface during the cooling process of the high-temperature generated gas, causing blockage. The disadvantage of this method is that it is difficult to recover heat from the produced gas until after removing tar and dust from the gas. The present invention has been made to solve the above-mentioned drawbacks, and uses coal ash, coke, etc. from a high-temperature gas generating furnace as a fluidizing medium, and allows tar and dust in the high-temperature gas to adhere to and collect on the fluidizing medium. Furthermore, the objective is to provide a fluidized bed waste heat boiler that can efficiently recover heat from high-temperature gas containing tar and dust by circulating the fluidized medium on which tar and dust are attached and bottled to a high-temperature gas generating furnace. That is.
第１の発明の流動床廃熱ボィラは、ボィラ本体下部にタ
ールおよびダストを含む高温ガスを高温ガス発生炉から
導入するための高温ガス入口を設け、ボィラ本体上部に
石炭灰、コークスなどからなる流動媒体を高温ガス発生
炉から導入するための流動媒体入口を設け、ボィラ本体
上部に冷却ガス出口を設け、ボィラ本体内下部にガス分
散板を固定し、このガス分散板の上側に前記流動媒体入
口から導入された石炭灰、コークスなどからなる流動媒
体で流動床を形成し、この流動床内に伝熱管を配設し、
前記高温ガスと流動媒体とが接触してタールおよびダス
トの付着した流動媒体を高温ガス発生炉へ循環させるた
めの流動媒体出口を流動床下部に位置するボィラ本体下
側部に設けたことを特徴としている。The fluidized bed waste heat boiler of the first invention has a high-temperature gas inlet at the bottom of the boiler body for introducing high-temperature gas containing tar and dust from the high-temperature gas generator, and has a high-temperature gas inlet at the top of the boiler body made of coal ash, coke, etc. A fluidized medium inlet is provided for introducing the fluidized medium from the high-temperature gas generating furnace, a cooling gas outlet is provided at the top of the boiler body, a gas distribution plate is fixed at the bottom of the boiler body, and the fluidized medium is placed above the gas distribution plate. A fluidized bed is formed with a fluidized medium made of coal ash, coke, etc. introduced from the inlet, and heat transfer tubes are arranged within this fluidized bed.
A fluidized medium outlet for circulating the fluidized medium with tar and dust attached thereon to the high-temperature gas generating furnace through contact between the high temperature gas and the fluidized medium is provided in the lower part of the boiler body located at the bottom of the fluidized bed. It is said that
また第２の発明の流動床廃熱ボィラは、ボィラ本体内を
複数のガス分散板により仕切って多段とし、このボィラ
本体下部にタールおよびダストを含む高温ガスを高温ガ
ス発生炉から導入するための高温ガス入口を設け、ボィ
ラ本体上部に石炭灰、コークスなどからなる流動媒体を
高温ガス発生炉から導入するための流動媒体入口を設け
、ボィラ本体上部に冷却ガス出口を設け、前記ガス分散
板の上側に前記流動媒体入口から導入された石炭灰、コ
ークスなどからなる流動媒体で流動床を形成し、この流
動床内に伝熱管を配設し、上側の流動床からこの流動床
に隣接する下側の流動床に流動媒体を移動自在に流動媒
体搬送手段を備えた通路を設け、前記高温ガスと流動媒
体とが接触してタールおよびダストの付着した流動媒体
を高温ガス発生炉へ循環させるための流動媒体出口を最
下部の流動床下部に位置するボィラ本体下側部に設けた
ことを特徴としている。Moreover, the fluidized bed waste heat boiler of the second invention has a boiler main body partitioned into multiple stages by a plurality of gas distribution plates, and a high-temperature gas containing tar and dust is introduced from a high-temperature gas generating furnace into the lower part of the boiler main body. A high temperature gas inlet is provided, a fluidized medium inlet is provided at the top of the boiler body for introducing a fluidized medium made of coal ash, coke, etc. from the high temperature gas generating furnace, a cooling gas outlet is provided at the top of the boiler body, and a cooling gas outlet is provided at the top of the boiler body. A fluidized bed is formed on the upper side with a fluidized medium made of coal ash, coke, etc. introduced from the fluidized medium inlet, a heat transfer tube is arranged in this fluidized bed, and a A passage provided with a fluidized medium conveying means to freely move the fluidized medium is provided in the side fluidized bed, and the high temperature gas and the fluidized medium come into contact and the fluidized medium with tar and dust attached thereon is circulated to the high temperature gas generating furnace. The fluidized medium outlet is provided in the lower part of the boiler body located at the bottom of the lowest fluidized bed.
以下、本発明の構成を図面に示す実施例に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below based on embodiments shown in the drawings.
第１図に示すように、石炭ガス化炉、コークス炉などの
高温ガス発生炉１からのタールおよびダストを含む高温
ガスを流動床廃熱ボィラ２へ導入するとともに、前記高
温ガス発生炉１からの石炭灰、コークスなどを流動媒体
として流動床廃熱ボィラ２へ導入して、この流動媒体に
高温ガス中のタールおよびダストを付着・捕集せしめた
後、高温ガス発生炉１へ循環させるようにして本発明の
流動床廃熱ボィラ２を構成する。なお場合によっては、
流動媒体循環通路３に造粒装置４を設けて流動媒体を造
粒することもある。つぎに第１の発明を第２図に基づい
て説明する。第１の発明はボィ本体１０下部に高温ガス
入口１１を設けるとともに、ボィラ本体１０上部に流動
媒体入口１２を設け、ボィラ１０下側部にスクリューフ
ィーダ１３のような流動媒体搬送手段を備えた流動媒体
出口１４を設けて構成したものである。ボィラ本体１０
上側部には冷却ガス出口１５が設けられ、ボィラ本体１
０内の下部にガ分散板１６が設けられる。このガス分散
板１６は、キャップタイプのものを用いる。また高温ガ
ス中のタールおよびダストにより目詰りを起こさないよ
う、幾分大さめ（５〜１５肋）の孔をキャップの周囲に
穿設し、その代りに孔の数を少なくするように工夫され
ている。ガス分散板としては、このキャップタイプの他
、スリットタイプなども適用可能である。このガス分散
板１６上に流動媒体入口１２から石炭灰、コークスなど
からなる流動媒体が供給されて流動床１７が形成される
が、流動媒体は常に供給しなくても、場合によっては生
成ガス中のダストおよびタールが流動媒体となることも
ある。流動床１７内には給水子熱管１８、蒸発管１９お
よび蒸気過熱管２０が挿入・設置されて貫流式ボィラを
形成している。しかし伝熱面の配置はこれに限定するこ
となく、蒸気の使用条件により適宜選択され、また貫流
式の他、ドラム式としても差し支えない、なお２１は耐
火断熱材層である。上記のように構成された流動床廃熱
ボィラにおいて、石炭ガス化炉、コークス炉などの高温
ガス発生炉から発生するタールおよびダストを含む高温
ガスが高温ガス入口１１からボィラ本体１０内に導入さ
れる。As shown in FIG. 1, high-temperature gas containing tar and dust from a high-temperature gas generating furnace 1 such as a coal gasifier or a coke oven is introduced into a fluidized bed waste heat boiler 2, and from the high-temperature gas generating furnace 1. Coal ash, coke, etc. are introduced into the fluidized bed waste heat boiler 2 as a fluidized medium, and the fluidized medium is made to adhere and collect tar and dust in the high-temperature gas, and then circulated to the high-temperature gas generating furnace 1. This constitutes the fluidized bed waste heat boiler 2 of the present invention. In some cases,
A granulating device 4 may be provided in the fluidized medium circulation path 3 to granulate the fluidized medium. Next, the first invention will be explained based on FIG. 2. In the first invention, a high temperature gas inlet 11 is provided at the bottom of the boiler body 10, a fluidized medium inlet 12 is provided at the top of the boiler body 10, and a fluidized medium conveying means such as a screw feeder 13 is provided at the bottom of the boiler 10. A fluidized medium outlet 14 is provided. Boiler body 10
A cooling gas outlet 15 is provided in the upper part, and the boiler body 1
A gas dispersion plate 16 is provided at the lower part of the inside. This gas distribution plate 16 is of a cap type. In addition, in order to prevent clogging due to tar and dust in the hot gas, somewhat larger holes (5 to 15 holes) were drilled around the cap, and instead, the number of holes was reduced. ing. In addition to this cap type, a slit type can also be used as the gas distribution plate. A fluidized bed 17 is formed by supplying a fluidized medium made of coal ash, coke, etc. onto this gas distribution plate 16 from a fluidized medium inlet 12, but the fluidized bed 17 does not need to be constantly supplied. Dust and tar may also serve as the fluidizing medium. A water supply heating tube 18, an evaporation tube 19, and a steam superheating tube 20 are inserted and installed in the fluidized bed 17 to form a once-through boiler. However, the arrangement of the heat transfer surface is not limited to this, and may be appropriately selected depending on the steam usage conditions, and may be a drum type or a once-through type. Note that 21 is a fireproof heat insulating layer. In the fluidized bed waste heat boiler configured as described above, high-temperature gas containing tar and dust generated from a high-temperature gas generator such as a coal gasifier or a coke oven is introduced into the boiler body 10 from the high-temperature gas inlet 11. Ru.
高温ガスはボィラ本体１０内でガス分散板１６を通して
流動床１７内に入り、ここで給水子熱管１８、蒸発管１
９および蒸気過熱管２０１こより冷却される。冷却され
たガスは冷却ガス出口１５から排出される。その間ガス
中のタールの一部は凝縮して流動媒体に付着するととも
に、ガス中のダストの一部がタールの付着した流動媒体
に衝突してこれに付着して橘集される。このタールの付
着した流動媒体は、流動床内の温度が約４８０ｏｏ以上
である場合は熱分解を受け、夕−ルの軽質化およびター
ルの一部のガス化を起こして流動媒体表面にコーキング
被膜が形成される。このコーキング被膜を有する流動媒
体の一部はスクリューフィーダ１３により抜き出されて
高温ガス発生炉へ循環される。流動床内の流動媒体は、
最初は高温ガス発生炉から石炭灰、コークスなどが流動
媒体入口１２から供給され、その後流動床のレベルの低
下があればその都度補給される。一方、ボィラ給水はま
ず給水子熱管１８に導入されて子熱された後、蒸発管１
９に送られさらに蒸気過熱管２０へ送られて過熱蒸気と
なって送り出される。つぎに第２の発明を第３図に基づ
いて説明する。The high-temperature gas enters the fluidized bed 17 through the gas distribution plate 16 in the boiler body 10, where it is passed through the water supply cogener tube 18 and the evaporator tube 1.
9 and steam superheating pipe 201. The cooled gas is discharged from the cooling gas outlet 15. During this time, a portion of the tar in the gas condenses and adheres to the fluidizing medium, and a portion of the dust in the gas collides with the tar-attached fluidizing medium, adheres thereto, and is collected. If the temperature inside the fluidized bed is about 480 oo or higher, this fluidized medium with tar attached undergoes thermal decomposition, causing the tar to become lighter and a part of the tar to gasify, resulting in a coking film on the surface of the fluidized medium. is formed. A part of the fluidized medium having this coking coating is extracted by the screw feeder 13 and circulated to the high temperature gas generating furnace. The fluid medium in the fluidized bed is
Initially, coal ash, coke, etc. are supplied from the high-temperature gas generating furnace through the fluidized medium inlet 12, and then replenished whenever the level of the fluidized bed decreases. On the other hand, the boiler feed water is first introduced into the water supply water heating tube 18 and subjected to heating, and then the evaporation tube 1
9 and further sent to a steam superheating pipe 20 where it becomes superheated steam and is sent out. Next, the second invention will be explained based on FIG.
第２の発明はボィラ本体１０内を２枚のガス分散板３０
，３１により仕切って２段流動床とし、このボィラ本体
１０下部に高温ガス入口１１を設けるとともに、ボィラ
本体１０上部に流動媒体入口１２を設け、一方、上側の
第２流動床３３から下側の第１流動床３２に流動媒体を
移動自在にスクリューフィーダ３４，３５のような流動
媒体搬送手段を備えた通路３６を設け、さらにボィラ本
体１０下側部にスクリューフイーダ３７のような流動媒
体搬送手段を備えた流動媒体出口３８を設けて構成した
ものである。ボィラ本体１０上側部には冷却ガス出口１
５が設けられ、第２流動床３３内には給水子熱管３９お
よび蒸発管４０が挿入・設置され、第１流動床３２内に
は蒸発管４１および蒸気過熱管４２が挿入・設置されて
貫流式ボィラを形成している。しかし伝熱面の配置はこ
れに限定することはなく、蒸気の使用条件により適宜選
択され、また貫流式の他、ドラム式としても差し支えな
い。また第１流動床３２の下側にガス分散板３０を設け
ているが、廃熱ポィラ入口ガス温度が高温でガス分散板
の設置が困難である場合にはこのガス分散板を省略する
こともある。上記のように構成された流動床廃熱ボィラ
において、石炭ガス化炉、コークス炉などの高温ガス発
生炉から発生するタールおよびダストを含む高温ガスが
高温ガス入口１１からポィラ本体１０内に導入される。
高温ガスはボィラ本体１０内でガス分散板３０を通過し
て第１流動床３２に入り、ここで蒸発管４１および蒸気
過熱管４２により冷却される。第１流動床３２で冷却さ
れたガスは、さらにガス分散板３１を通過して第２流動
床３３に入り、ここで給水子熱管３９および蒸発管４０
によりさらに冷却された後、冷却ガス出口１５から排出
される。その間ガス中のタールの一部は凝縮して流動床
内の流動媒体に付着する。ガス中のダスートの一部もま
た、タールの付着した流動媒体に衝突してこれに付着し
て瓶集される。流動床内の流動媒体は、最初は高温ガス
発生炉から石炭灰、コークスなどが流動媒体入口１２か
ら供給され、その後流動床のレベルの低下があればその
都度補給される。第２流動床３３内タールの付着した流
動媒体は、スクリュ−フィーダ３４により抜き出され、
スクリューィーダ３５を経て第１流動床３２に落下する
。このように流動媒体の移動にスクリューフィーダを用
いているので、抜出しの際に高温ガスの吹抜けおよび流
動媒体による閉塞が防止される。第１流動床３２内のタ
ールの付着した流動媒体は、熱分解を受けてタールの軽
貿化およびタールの一部のガス化を起こして流動媒体表
面にコーキング被膜が形成される。ただしこの条件とし
て、第１流動床の温度を約４８０００以上とする必要が
ある。このコーキング被膜を有する流動媒体の一部は、
スクリューフィーダ３７により抜き出されて高温ガス発
生炉へ循環される。一方、ポィラ給水はまず給水子熱管
３９に導入されて子熱され、子熱された給水は第１流動
床３２内の蒸発管４１と第２流動床３３内の蒸発管４０
とに分枝され、これら蒸発管４０，４１で発生した蒸気
は蒸気過熱管４２入口のへッダーで合流し、蒸気過熱管
４２を経て過熱蒸気となって送り出される。なお上記の
実施例においては、流動床の段数として１段よび２段の
場合について説明したが、入口ガス温度、入口ガス圧力
の高低により３段以上の多段が適宜選択される。The second invention includes two gas distribution plates 30 inside the boiler main body 10.
, 31 to form a two-stage fluidized bed, a high temperature gas inlet 11 is provided at the bottom of the boiler main body 10, and a fluidized medium inlet 12 is provided at the top of the boiler main body 10. The first fluidized bed 32 is provided with a passage 36 equipped with fluidic medium conveying means such as screw feeders 34 and 35 for freely moving the fluidic medium, and furthermore, a passage 36 equipped with a fluidic medium conveying means such as screw feeders 34 and 35 is provided in the lower part of the boiler main body 10 to allow the fluidic medium to be freely moved. A fluidized medium outlet 38 provided with means is provided. A cooling gas outlet 1 is provided on the upper side of the boiler body 10.
5 is provided, a water supply heating tube 39 and an evaporation tube 40 are inserted and installed in the second fluidized bed 33, and an evaporation tube 41 and a steam superheating tube 42 are inserted and installed in the first fluidized bed 32 to create a through-flow. It forms a type boiler. However, the arrangement of the heat transfer surface is not limited to this, and may be appropriately selected depending on the steam usage conditions, and may be a once-through type or a drum type. Furthermore, although a gas distribution plate 30 is provided below the first fluidized bed 32, this gas distribution plate may be omitted if the gas temperature at the waste heat poller inlet is high and it is difficult to install the gas distribution plate. be. In the fluidized bed waste heat boiler configured as described above, high-temperature gas containing tar and dust generated from a high-temperature gas generating furnace such as a coal gasifier or a coke oven is introduced into the boiler body 10 from the high-temperature gas inlet 11. Ru.
The high-temperature gas passes through the gas distribution plate 30 within the boiler body 10 and enters the first fluidized bed 32, where it is cooled by the evaporation pipe 41 and the steam superheating pipe 42. The gas cooled in the first fluidized bed 32 further passes through the gas distribution plate 31 and enters the second fluidized bed 33, where it enters the water supply heating tube 39 and the evaporation tube 40.
After being further cooled by the cooling gas outlet 15, the cooling gas is discharged from the cooling gas outlet 15. During this time, some of the tar in the gas condenses and adheres to the fluidized medium in the fluidized bed. A portion of the dust in the gas also collides with and adheres to the tar-laden fluid medium and is collected in the bottle. The fluidized medium in the fluidized bed is initially supplied with coal ash, coke, etc. from the high-temperature gas generating furnace through the fluidized medium inlet 12, and then replenished whenever the level of the fluidized bed decreases. The fluidized medium with tar attached inside the second fluidized bed 33 is extracted by the screw feeder 34,
The fluid passes through the screw feeder 35 and falls into the first fluidized bed 32 . Since the screw feeder is used to move the fluidized medium in this manner, blow-through of high temperature gas and blockage by the fluidized medium are prevented during extraction. The tar-adhered fluid medium in the first fluidized bed 32 undergoes thermal decomposition, causing the trade of tar to become lighter and a portion of the tar to be gasified, thereby forming a coking film on the surface of the fluid medium. However, this condition requires that the temperature of the first fluidized bed be approximately 48,000 or higher. A part of the fluid medium with this caulking film is
It is extracted by the screw feeder 37 and circulated to the high temperature gas generating furnace. On the other hand, the boiler feed water is first introduced into the feed water condensing tube 39 and heated, and the heated feed water is passed through the evaporation tube 41 in the first fluidized bed 32 and the evaporation tube 41 in the second fluidized bed 33.
The steam generated in these evaporation tubes 40 and 41 joins at the header at the inlet of the steam superheating tube 42, and is sent out as superheated steam through the steam superheating tube 42. In the above embodiments, the number of stages of the fluidized bed is one or two, but three or more stages may be appropriately selected depending on the inlet gas temperature and the inlet gas pressure.
この場合、上側の流動床からこれに隣接する下側の流動
床に流動媒体を移動自在に流動媒体搬送手段を備えた通
路が夫々設けられる。以上説明したように、本発明の流
動床廃熱ボィラは高温ガス発生炉からの流動媒体により
高温ガス中のタールおむびダストを付着・捕集するもの
であるから、タールおよびダストを含む高温ガスを直接
使用することができる上に、高温の流動媒体を高温ガス
発生炉側へ循環することにより、高温ガス発生炉の熱効
率を向上させるのみならず、廃熱回収システムを単純化
し、しかも特別な廃棄物を排出しないという効果を有し
ている。In this case, each passage is provided with a fluidized medium conveying means for freely moving the fluidized medium from the upper fluidized bed to the adjacent lower fluidized bed. As explained above, since the fluidized bed waste heat boiler of the present invention attaches and collects tar rice dust in high temperature gas using the fluidized medium from the high temperature gas generating furnace, high temperature gas containing tar and dust In addition to circulating the high-temperature fluidized medium to the high-temperature gas generating furnace, it not only improves the thermal efficiency of the high-temperature gas generating furnace, but also simplifies the waste heat recovery system. This has the effect of not emitting waste.
第１図は本発明の流動床廃熱ボィラ回りのフローシート
、第２図は第１の発明の一実施例を示す説明図、第３図
は第２の発明の一実施例を示す説明図である。
１・・・高温ガス発生炉、２・・・流動床廃熱ボィラ、
３・・・流動媒体循環通路、４・・・造粒装置、１０・
・・ボィラ本体、１１・・・高温ガス入口、１２・・・
流動媒体入口、１３・・・スクリュ−フィーダ、１４・
・・流動媒体出口、１５…冷却ガス出口、１６…ガス分
散板、１７・・・流動床、１８・・・給水子熱管、１９
・・・蒸発管、２０・・・蒸気過熱管、２１・・・耐火
断熱材層、３０，３１・・・ガス分散板、３２・・・第
１流動床、３３・・・第２流動床、３４，３５，３７・
・・スクリューフィーダ、３６・・・通路、３８・・・
流動媒体出口、３９・・・給水子熱管、４０，４１・・
・蒸発管、４２・・・蒸気過熱管。
努Ｚ図
髪，図
繁多図Fig. 1 is a flow sheet around the fluidized bed waste heat boiler of the present invention, Fig. 2 is an explanatory diagram showing an embodiment of the first invention, and Fig. 3 is an explanatory diagram showing an embodiment of the second invention. It is. 1... High temperature gas generator, 2... Fluidized bed waste heat boiler,
3...Fluid medium circulation passage, 4...Pelletizer, 10...
...Boiler body, 11...High temperature gas inlet, 12...
Fluid medium inlet, 13... screw feeder, 14...
...Fluidized medium outlet, 15...Cooling gas outlet, 16...Gas distribution plate, 17...Fluidized bed, 18...Water supply child heating tube, 19
... Evaporation pipe, 20 ... Steam superheating pipe, 21 ... Fireproof insulation material layer, 30, 31 ... Gas distribution plate, 32 ... First fluidized bed, 33 ... Second fluidized bed , 34, 35, 37・
...Screw feeder, 36...Passway, 38...
Fluid medium outlet, 39... Water supply child heat tube, 40, 41...
・Evaporation pipe, 42...Steam superheating pipe. Tsutomu Z drawing hair, drawing many drawings
Claims (1)
スを高温ガス発生炉から導入するための高温ガス入口を
設け、ボイラ本体上部に石炭灰、コークスなどからなる
流動媒体を高温ガス発生炉から導入するための流動媒体
入口を設け、ボイラ本体上部に冷却ガス出口を設け、ボ
イラ本体内下部にガス分散板を固定し、このガス分散板
の上側に前記流動媒体入口から導入された石炭灰、コー
クスなどからなる流動媒体で流動床を形成し、この流動
床内に伝熱管を配設し、前記高温ガスと流動媒体とが接
触してタールおよびダストの付着した流動媒体を高温ガ
ス発生炉へ循環させるための流動媒体出口を流動床下部
に位置するボイラ本体下側部に設けたことを特徴とする
流動床廃熱ボイラ。 ２ ボイラ本体内を複数のガス分散板により仕切って多
段とし、このボイラ本体下部にタールおよびダストを含
む高温ガスを高温ガス発生炉から導入するための高温ガ
ス入口を設け、ボイラ本体上部に石炭灰、コークスなど
からなる流動媒体を高温ガス発生炉から導入するための
流動媒体入口を設け、ボイラ本体上部に冷却ガス出口を
設け、前記ガス分散板の上側に前記流動媒体入口から導
入された石炭灰、コークスなどからなる流動媒体で流動
床を形成し、この流動床内に伝熱管を配設し、上側の流
動床からこの流動床に隣接する下側の流動床に流動媒体
を移動自在に流動媒体搬送手段を備えた通路を設け、前
記高温ガスと流動媒体とが接触してタールおよびダスト
の付着した流動媒体を高温ガス発生炉へ循環させるため
の流動媒体出口を最下部の流動床下部に位置するボイラ
本体下側部に設けたことを特徴とする流動床廃熱ボイラ
。[Claims] 1. A high-temperature gas inlet is provided at the bottom of the boiler body for introducing high-temperature gas containing tar and dust from a high-temperature gas generating furnace, and a fluidized medium consisting of coal ash, coke, etc. A fluidized medium inlet is provided for introduction from the generating furnace, a cooling gas outlet is provided at the top of the boiler body, a gas distribution plate is fixed at the bottom of the boiler body, and the fluidized medium introduced from the fluidized medium inlet is provided above the gas distribution plate. A fluidized bed is formed with a fluidized medium made of coal ash, coke, etc., and a heat transfer tube is disposed within this fluidized bed, and the high temperature gas and the fluidized medium come into contact with each other, and the fluidized medium with tar and dust attached is converted into a high temperature gas. A fluidized bed waste heat boiler characterized in that a fluidized medium outlet for circulating to a generating furnace is provided in the lower part of the boiler body located below the fluidized bed. 2 The boiler body is partitioned into multiple stages by multiple gas distribution plates, a high temperature gas inlet is provided at the bottom of the boiler body to introduce high temperature gas containing tar and dust from the high temperature gas generating furnace, and a coal ash inlet is installed at the top of the boiler body. A fluidized medium inlet is provided for introducing a fluidized medium such as coke from the high-temperature gas generating furnace, a cooling gas outlet is provided at the top of the boiler body, and the coal ash introduced from the fluidized medium inlet is provided above the gas distribution plate. A fluidized bed is formed with a fluidized medium made of coke, etc., and a heat transfer tube is installed in this fluidized bed, so that the fluidized medium can be freely moved from the upper fluidized bed to the lower fluidized bed adjacent to this fluidized bed. A passage provided with a medium conveying means is provided, and a fluidized medium outlet is provided at the bottom of the lowest fluidized bed for circulating the fluidized medium with tar and dust attached thereto through contact between the high temperature gas and the fluidized medium to the high temperature gas generating furnace. A fluidized bed waste heat boiler characterized by being installed on the lower side of the boiler body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5695076A JPS601521B2 (en) | 1976-05-17 | 1976-05-17 | Fluidized bed waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5695076A JPS601521B2 (en) | 1976-05-17 | 1976-05-17 | Fluidized bed waste heat boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52139803A JPS52139803A (en) | 1977-11-22 |
| JPS601521B2 true JPS601521B2 (en) | 1985-01-16 |
Family
ID=13041818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5695076A Expired JPS601521B2 (en) | 1976-05-17 | 1976-05-17 | Fluidized bed waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601521B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62109820U (en) * | 1985-12-26 | 1987-07-13 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827202Y2 (en) * | 1976-07-19 | 1983-06-13 | 日立造船株式会社 | waste heat boiler |
| JPS5646709U (en) * | 1979-09-13 | 1981-04-25 |
-
1976
- 1976-05-17 JP JP5695076A patent/JPS601521B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62109820U (en) * | 1985-12-26 | 1987-07-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52139803A (en) | 1977-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1134221A (en) | Steam generating heat exchanger | |
| RU2126934C1 (en) | Particle-return fluidized-bed reactor | |
| US4328007A (en) | Apparatus for gasification of fine-grain coal | |
| US5033413A (en) | Fluidized bed combustion system and method utilizing capped dual-sided contact units | |
| EP0365723B1 (en) | Fluidized bed reactor having an integrated recycle heat exchanger | |
| US4464183A (en) | Heat recovery process in coal gasification | |
| SU898960A3 (en) | Method of combusting solid carbon-containing fuel in fluidized bed | |
| PL153818B1 (en) | The method of the allothermic gasification of carbon andgas generators with fluid deposit for the allothermic gasification of carbon | |
| EP0630683B1 (en) | Method and apparatus for treating or ultilizing a hot gas flow | |
| US2213052A (en) | Method of and apparatus for the recovery of heat and chemicals from black liquor | |
| JPH05231614A (en) | Fluidized bed combustion apparatus and method with integral type recirculation heat exchanger having outlet/inlet chamber | |
| GB2061758A (en) | Radiation boiler | |
| RU2734370C2 (en) | Regenerative boiler regeneration surface device | |
| EP0630684B1 (en) | Method and apparatus for treating or utilizing a hot gas flow | |
| JPH0146761B2 (en) | ||
| JPS601521B2 (en) | Fluidized bed waste heat boiler | |
| RU2738986C2 (en) | Arrangement of low-temperature heating surfaces in a recovery boiler | |
| FI103590B (en) | Apparatus and method for recovering materials and heat from fluidized bed combustion | |
| FI70071C (en) | COMBINATION GAS-AONGPROCESSKRAFTVERK | |
| CN107739630A (en) | A kind of Biomass Gasification in Circulating Fluidized Bed device | |
| CN210176804U (en) | Full waste boiler flow gasification system | |
| US2960390A (en) | Superheater for chemical recovery unit | |
| GB2068095A (en) | Steam generating heat exchanger | |
| US5012750A (en) | Apparatus for recovery of constituents and heat from fluidized bed combustion | |
| US2023031A (en) | Boiler for pulp mills and the like |