JPH0783421A - Fluidized bed refuse incinerator with chloride removing function - Google Patents
Fluidized bed refuse incinerator with chloride removing functionInfo
- Publication number
- JPH0783421A JPH0783421A JP5185442A JP18544293A JPH0783421A JP H0783421 A JPH0783421 A JP H0783421A JP 5185442 A JP5185442 A JP 5185442A JP 18544293 A JP18544293 A JP 18544293A JP H0783421 A JPH0783421 A JP H0783421A
- Authority
- JP
- Japan
- Prior art keywords
- fluidized bed
- chloride
- refuse incinerator
- stage
- refuse
- 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
Landscapes
- Treating Waste Gases (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、流動層ごみ焼却炉にお
いて、ごみ中の塩素系化合物の燃焼に起因する塩化水素
を層内脱塩した際に生じる塩化物を効率よく分離・除去
する、塩化物除去機能を備えた流動層ごみ焼却炉に関す
る。FIELD OF THE INVENTION The present invention efficiently separates and removes chlorides generated when desalting hydrogen chloride in a bed in a fluidized bed waste incinerator due to combustion of chlorine compounds in the waste. The present invention relates to a fluidized bed refuse incinerator having a chloride removing function.
【０００２】[0002]
【従来の技術】近年、ごみ中に占めるプラスチック類の
割合が増加しており、このため、ストーカ炉等に比べ
て、プラスチック類の燃焼に適する流動層ごみ焼却炉が
注目を集めている。従来の流動層ごみ焼却炉において、
ごみ中に含まれる塩素系プラスチックの燃焼に起因する
塩化水素を除去するため、燃焼させた後の排ガス中に生
石灰（ＣａＯ）や消石灰（Ｃａ（ＯＨ）2 ）を噴霧し塩
化カルシウム（ＣａＣｌ2 ）にして、このＣａＣｌ2 を
フィルターで捕集する方法が一般に知られている（例え
ば、特公昭６０−２５１７９号公報参照）。また、脱塩
剤として石灰石（ＣａＣＯ3）を用いることもよく知ら
れている。なお、Ｃａ（ＯＨ）2 、ＣａＣＯ3 は炉内に
投入されると、熱分解してＣａＯになる。2. Description of the Related Art In recent years, the proportion of plastics in garbage has been increasing. For this reason, a fluidized bed refuse incinerator suitable for burning plastics has attracted attention as compared with a stoker furnace or the like. In a conventional fluidized bed refuse incinerator,
Calcium chloride (CaCl 2 ) is sprayed with quick lime (CaO) or slaked lime (Ca (OH) 2 ) in the exhaust gas after combustion in order to remove hydrogen chloride caused by the combustion of chlorine-based plastic contained in the garbage. Then, a method of collecting this CaCl 2 with a filter is generally known (see, for example, Japanese Patent Publication No. 60-25179). It is also well known to use limestone (CaCO 3 ) as a desalting agent. When Ca (OH) 2 and CaCO 3 are put into the furnace, they are thermally decomposed into CaO.
【０００３】図５は、従来の流動層ごみ焼却炉の一例を
示している。この流動層ごみ焼却炉１０は、流動層１２
に脱塩剤供給口２２から粒状のアルカリ金属酸化物（例
えばＣａＯ、ＭｇＯ）等の脱塩剤を投入し、流動媒体の
一部又は全部として、流動層１２内で発生する塩化水素
と反応させて金属塩化物として流動層１２から抜き出す
ものである。１４は空気分散板、１６は流動媒体、灰、
塩化物、不燃物を抜き出すための排出管、１８はフリー
ボード、２０はごみ投入口、２１はごみ、２４は蒸発
管、２６は過熱器である。FIG. 5 shows an example of a conventional fluidized bed refuse incinerator. This fluidized bed refuse incinerator 10 has a fluidized bed 12
Then, a desalting agent such as granular alkali metal oxides (eg, CaO, MgO) is charged into the desalting agent supply port 22 and reacted with hydrogen chloride generated in the fluidized bed 12 as a part or all of the fluidized medium. The metal chloride is extracted from the fluidized bed 12. 14 is an air dispersion plate, 16 is a fluid medium, ash,
A discharge pipe for extracting chlorides and incombustibles, 18 is a freeboard, 20 is a dust inlet, 21 is dust, 24 is an evaporation pipe, and 26 is a superheater.
【０００４】通常、脱塩剤は流動媒体の一部として用い
られ、流動媒体（例えば砂）、灰、塩化物、不燃物は排
出管１６により抜き出された後、振動篩等の分級機で不
燃物等が分離されて、流動媒体（砂）等が流動層１２内
に循環されている。Usually, the desalting agent is used as a part of a fluid medium, and the fluid medium (for example, sand), ash, chlorides, and incombustibles are taken out through an exhaust pipe 16 and then, with a classifier such as a vibrating sieve. The incombustibles and the like are separated, and the fluidized medium (sand) or the like is circulated in the fluidized bed 12.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記の
ような層内脱塩を行う場合、塩化水素（ＨＣｌ）との反
応によって生じる塩化物（例えば、カルシウム系の脱塩
剤を用いる場合はＣａＣｌ2 ）が効率よく流動媒体と分
離しないので、流動媒体中の塩化物濃度が高くなり、こ
の塩化物の分解によりＨＣｌが再発生し、脱塩効率を低
下させている。However, in the case of performing the in-layer desalting as described above, a chloride formed by the reaction with hydrogen chloride (HCl) (for example, CaCl 2 when a calcium-based desalting agent is used). ) Does not efficiently separate from the fluidized medium, the chloride concentration in the fluidized medium becomes high, HCl is regenerated by decomposition of this chloride, and desalination efficiency is reduced.
【０００６】また、排ガスに同伴して流動層１２を飛び
出した塩化物を含む粉塵は、フリーボード１８、熱交換
部（例えば、蒸発管２４及び過熱器２６）を通り抜け、
ガス冷却室（図示略）の下流に設置された集塵機（図示
略）（例えば、電気集塵機又はバグフィルタ等）によっ
て捕集される。この場合も、排ガスに同伴された塩化物
が、熱、その他の作用により分解して、再びＨＣｌに戻
り、熱交換部を腐食させたり、塩化物が熱交換部の伝熱
管に付着・堆積してスケールを生成する等の問題点があ
る。[0006] Further, the dust containing chloride that has flown out of the fluidized bed 12 along with the exhaust gas passes through the freeboard 18, the heat exchange section (for example, the evaporation pipe 24 and the superheater 26),
It is collected by a dust collector (not shown) (for example, an electric dust collector or a bag filter) installed downstream of the gas cooling chamber (not shown). Also in this case, chloride entrained in the exhaust gas is decomposed by heat and other actions and returns to HCl again to corrode the heat exchange section, or chloride adheres to and accumulates on the heat transfer tube of the heat exchange section. There is a problem in that the scale is generated.
【０００７】本発明は上記の諸点に鑑みなされたもの
で、本発明の目的は、流動層内の塩化物濃度を低く保つ
ことにより、塩化物の分解によるＨＣｌの再発生を抑制
する流動層ごみ焼却炉を提供することにある。また、本
発明の他の目的は、排ガスに同伴している反応生成物
（塩化物）を含む粉塵を捕集し、フリーボード部以降へ
の流入を防ぎ、ＨＣｌの再発生及び伝熱管へのスケール
生成を抑制する流動層ごみ焼却炉を提供することにあ
る。The present invention has been made in view of the above points, and an object of the present invention is to keep the chloride concentration in the fluidized bed low to suppress the regeneration of HCl due to the decomposition of chlorides. To provide an incinerator. Further, another object of the present invention is to collect dust containing a reaction product (chloride) entrained in the exhaust gas, prevent the dust from flowing into the freeboard portion and thereafter, regenerate HCl, and discharge it to the heat transfer tube. An object of the present invention is to provide a fluidized bed refuse incinerator that suppresses scale formation.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明の塩化物除去機能を備えた流動層ごみ焼却
炉は、図１及び図２に示すように、流動層ごみ焼却炉１
０の流動層１２内で、脱塩剤とごみ中の塩素系化合物の
燃焼に起因する塩化水素とを反応させて塩化物とする層
内脱塩流動層ごみ焼却炉において、流動層１２の下部に
接続された排出管１６に、上段に目の粗い篩４０を有
し、下段に目の細かい篩４２を有する二段分級装置４４
を設け、上段の目の粗い篩４０の上側に不燃物抜出管４
６を接続し、下段の目の細かい篩４２の上側に流動媒体
循環導管３０を接続したことを特徴としている。In order to achieve the above object, a fluidized bed refuse incinerator having a chloride removing function of the present invention is a fluidized bed refuse incinerator as shown in FIGS. 1 and 2. 1
In the in-bed desalination fluidized bed refuse incinerator, a desalting agent reacts with hydrogen chloride resulting from combustion of chlorine compounds in the refuse to form chlorides in the fluidized bed 12 The discharge pipe 16 connected to the two-stage classification device 44 having a coarse sieve 40 in the upper stage and a fine sieve 42 in the lower stage.
Is provided, and the incombustibles extraction pipe 4 is provided above the coarse mesh 40 in the upper stage.
6 is connected, and the fluidized medium circulation conduit 30 is connected to the upper side of the lower fine sieve 42.
【０００９】また、本発明の他の流動層ごみ焼却炉は、
図３に示すように、流動層ごみ焼却炉１０の流動層１２
内で、脱塩剤とごみ中の塩素系化合物の燃焼に起因する
塩化水素とを反応させて塩化物とする層内脱塩流動層ご
み焼却炉において、流動層１２の下部に接続された排出
管１６に分級装置５０を設け、この分級装置５０の上側
に不燃物抜出管５２を接続し、この分級装置５０の下側
に流動媒体循環導管３０を接続し、この流動媒体循環導
管３０の途中に、流動媒体中に存在する塩化物微粉及び
灰を洗浄・除去するための水を添加する水供給手段５４
を接続して洗浄部５６を形成し、この洗浄部５６の下側
に灰を含む塩化物水溶液を抜き出す液抜出部５８を設け
たことを特徴としている。Another fluidized bed refuse incinerator of the present invention is
As shown in FIG. 3, the fluidized bed 12 of the fluidized bed refuse incinerator 10 is shown.
In the in-bed desalination fluidized bed refuse incinerator, in which a desalting agent reacts with hydrogen chloride resulting from the combustion of chlorine-based compounds in the refuse to form a chloride, the discharge connected to the lower part of the fluidized bed 12 The pipe 16 is provided with a classifying device 50, an incombustible substance withdrawing pipe 52 is connected to the upper side of the classifying device 50, and a fluidized medium circulation conduit 30 is connected to the lower side of the classified device 50. On the way, water supply means 54 for adding water for washing and removing fine chloride powder and ash existing in the fluidized medium.
Is connected to form a cleaning unit 56, and a liquid extracting unit 58 for extracting the chloride aqueous solution containing ash is provided below the cleaning unit 56.
【００１０】さらに、本発明の他の流動層ごみ焼却炉
は、図４に示すように、流動層ごみ焼却炉１０の流動層
１２内で、脱塩剤とごみ中の塩素系化合物の燃焼に起因
する塩化水素とを反応させて塩化物とする層内脱塩流動
層ごみ焼却炉において、流動層１２とフリーボード１８
との間に、塩化物を含む粉塵を分離・除去するための集
塵装置６０を設けたことを特徴としている。なお、集塵
装置６０としては、サイクロン、電気集塵機、バグフィ
ルタ等が用いられる。Furthermore, another fluidized bed refuse incinerator of the present invention, as shown in FIG. 4, is provided for burning the desalting agent and chlorine-based compounds in the refuse in the fluidized bed 12 of the fluidized bed refuse incinerator 10. In the in-bed desalination fluidized bed refuse incinerator that reacts with the resulting hydrogen chloride to form chloride, the fluidized bed 12 and the freeboard 18
A dust collecting device 60 for separating and removing dust containing chloride is provided between and. A cyclone, an electrostatic precipitator, a bag filter or the like is used as the dust collector 60.
【００１１】[0011]
【実施例】以下、図面を参照して本発明の好適な実施例
を詳細に説明する。ただし、この実施例に記載されてい
る構成機器の形状、その相対配置などは、とくに特定的
な記載がない限りは、本発明の範囲をそれらのみに限定
する趣旨のものではなく、単なる説明例にすぎない。 実施例１ 図１は、実施例１における流動層ごみ焼却炉を示し、図
２は、図１における二段分級装置まわりの詳細を示して
いる。１０は流動層ごみ焼却炉で、底部に流動層１２を
備えている。１４は空気分散板、１５は風箱、１６は排
出管、１７は一次空気供給管、１８はフリーボード、２
０はごみ投入口、２１はごみ、２２は脱塩剤供給口、２
４は蒸発管、２６は過熱器である。脱塩剤としては、Ｃ
ａ、Ｍｇ等のアルカリ金属系のものが用いられるが、実
施例ではＣａＯを用いる場合について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings. However, the shape of the constituent devices described in this embodiment, the relative arrangement thereof, and the like, unless otherwise specified, are not intended to limit the scope of the present invention only to them, but merely illustrative examples. Nothing more. Example 1 FIG. 1 shows a fluidized bed refuse incinerator in Example 1, and FIG. 2 shows the details around the two-stage classification device in FIG. A fluidized bed refuse incinerator 10 has a fluidized bed 12 at the bottom. 14 is an air dispersion plate, 15 is a wind box, 16 is an exhaust pipe, 17 is a primary air supply pipe, 18 is a freeboard, 2
0 is a garbage inlet, 21 is a garbage, 22 is a desalting agent supply port, 2
Reference numeral 4 is an evaporation pipe, and 26 is a superheater. As a desalting agent, C
Alkali metal-based materials such as a and Mg are used. In the examples, the case of using CaO will be described.
【００１２】上記のように構成された流動層ごみ焼却炉
１０において、排出管１６に、排出コンベヤ４１を介し
て、上段に目の粗い篩４０を有し、下段に目の細かい篩
４２を有する二段振動篩等の二段分級装置４４が接続さ
れる。そして、上段の目の粗い篩４０の上側に不燃物抜
出管４６が接続され、下段の目の細かい篩４２の上側に
流動媒体循環導管３０が接続される。二段分級装置４４
の下部には、塩化物を含む灰を抜き出す排出口４８が設
けられている。４９はエキスパンションジョイントであ
る。In the fluidized bed refuse incinerator 10 constructed as described above, the discharge pipe 16 has the coarse sieve 40 in the upper stage and the fine sieve 42 in the lower stage via the discharge conveyor 41. A two-stage classifying device 44 such as a two-stage vibrating screen is connected. The incombustibles extraction pipe 46 is connected to the upper side of the coarse mesh 40 in the upper stage, and the fluid medium circulation conduit 30 is connected to the upper side of the fine sieve 42 in the lower stage. Two-stage classifier 44
A discharge port 48 for extracting ash containing chloride is provided in the lower part of the. 49 is an expansion joint.
【００１３】つぎに、実施例１における作用について説
明する。流動層１２内から排出管１６及び排出コンベヤ
４１を経由して抜き出された灰、不燃物、塩化物、流動
媒体（例えば砂）は、二段分級装置４４へ導入され、上
段の目の粗い篩４０で不燃物が分離され、次に下段の目
の細かい篩４２でアンダーカットされて、下段の篩４２
上に流動媒体が分離される。塩化物は流動媒体に比べて
軟らかいので、流動中に流動媒体等による摩擦や、反応
そのものによって粉化している。このため、下段の目の
細かい篩４２の下側に落下し、底部の排出口４８から塩
化物を含む灰が抜き出される。Next, the operation of the first embodiment will be described. Ash, incombustibles, chlorides, and fluid medium (for example, sand) extracted from the fluidized bed 12 via the exhaust pipe 16 and the exhaust conveyor 41 are introduced into the two-stage classification device 44, and the upper stage has coarse mesh. Incombustibles are separated by the sieve 40, and then undercut by the fine sieve 42 in the lower stage,
The fluid medium is separated on the top. Since chloride is softer than the fluid medium, it is pulverized due to the friction of the fluid medium during the fluidization and the reaction itself. For this reason, the ash containing chloride falls out from the bottom of the fine mesh 42 in the lower stage and is discharged from the discharge port 48 at the bottom.
【００１４】不燃物は不燃物抜出管４６を経由して系外
へ抜き出され、流動媒体は流動媒体循環導管３０を経由
して流動層１２へ循環される。なお、脱塩剤としてＣａ
Ｏを用いる場合は、次の反応により脱塩が行われる。 ＣａＯ＋２ＨＣｌ→ＣａＣｌ2 ＋Ｈ2 ＯThe incombustibles are extracted from the system via the incombustibles extraction pipe 46, and the fluidized medium is circulated to the fluidized bed 12 via the fluidized medium circulation conduit 30. As a desalting agent, Ca
When O is used, desalting is carried out by the following reaction. CaO + 2HCl → CaCl 2 + H 2 O
【００１５】実施例２ 本実施例は、図３に示すように、排出管１６に振動篩等
の分級装置５０を接続し、この分級装置５０の上側に不
燃物抜出管５２を接続し、この分級装置５０の下側に流
動媒体循環導管３０を接続し、この導管３０の途中に、
水供給手段５４を接続して洗浄部５６を形成し、この洗
浄部５６の下側に液抜出部５８を設けたものである。な
お、分級装置５０の上流側に、実施例１の場合と同様に
排出コンベヤが設けられるが、図示を省略している。Example 2 In this example, as shown in FIG. 3, a classifying device 50 such as a vibrating sieve is connected to the discharge pipe 16, and an incombustibles withdrawing pipe 52 is connected to the upper side of the classifying device 50. A fluid medium circulation conduit 30 is connected to the lower side of the classifying device 50, and in the middle of the conduit 30,
The water supply means 54 is connected to form a cleaning section 56, and a liquid draining section 58 is provided below the cleaning section 56. A discharge conveyor is provided on the upstream side of the classifying device 50 as in the first embodiment, but is not shown.
【００１６】流動層１２内から排出管１６を経由して抜
き出された灰、不燃物、塩化物、流動媒体（例えば砂）
は、振動篩等の分級装置５０へ導入され、篩上の不燃物
と、篩下の流動媒体、灰、塩化物とに分離される。流動
媒体、灰、塩化物は流動媒体循環導管３０の途中の洗浄
部５６で水により洗浄され、水に対する溶解度の高い塩
化物は水に溶解して塩化物水溶液として液抜出部（例え
ば、スリット部）５８から系外に抜き出される。なお、
塩化物水溶液には灰も含まれている。塩化物及び灰が分
離された流動媒体は、流動層１２へ循環される。他の構
成は実施例１の場合と同様である。Ash, incombustibles, chlorides, fluid medium (for example, sand) extracted from the fluidized bed 12 via the discharge pipe 16.
Is introduced into a classifying device 50 such as a vibrating screen, and is separated into an incombustible material on the screen and a fluid medium, ash and chloride under the screen. The fluid medium, ash, and chloride are washed with water in a washing section 56 in the middle of the fluid medium circulation conduit 30, and chloride having a high solubility in water is dissolved in water to form a chloride aqueous solution and a liquid extraction section (for example, a slit). Part 58 from the system. In addition,
Ash is also included in the chloride aqueous solution. The fluidized medium from which chloride and ash have been separated is circulated to the fluidized bed 12. Other configurations are similar to those in the first embodiment.
【００１７】実施例３ 本実施例は、図４に示すように、流動層１２とフリーボ
ード１８との間に、集塵装置としてサイクロン６０を設
けたものである。すなわち、流動層１２の上側の排ガス
出口６４に排ガス導管６６を接続し、この排ガス導管６
６にサイクロン６０を接続する。そして、サイクロン６
０の排ガス出口管６８にフリーボード１８を含む部分を
接続する。ごみ燃焼によって発生したＨＣｌとＣａＯと
が反応して生成した塩化物のうち、粉化したものは他の
細かい粉塵とともに排ガスに同伴されてサイクロン６０
に入る。サイクロン６０において、塩化物を含む粉塵は
排ガスと分離され、粉塵は下部の排出口６２から系外に
排出され、排ガスはフリーボード１８で２次空気により
完全燃焼する。この結果、塩化物はフリーボード１８へ
入ることはなく、塩化物の分解によるＨＣｌの再発生が
抑制される。他の構成は、実施例１の場合と同様であ
る。Embodiment 3 In this embodiment, as shown in FIG. 4, a cyclone 60 is provided as a dust collector between the fluidized bed 12 and the freeboard 18. That is, the exhaust gas conduit 66 is connected to the exhaust gas outlet 64 on the upper side of the fluidized bed 12,
Cyclone 60 is connected to 6. And cyclone 6
A portion including the freeboard 18 is connected to the exhaust gas outlet pipe 68 of 0. Of the chlorides produced by the reaction between HCl and CaO generated by the dust combustion, the pulverized chlorides are entrained in the exhaust gas together with other fine dust, and the cyclone 60
to go into. In the cyclone 60, the dust containing chloride is separated from the exhaust gas, the dust is discharged to the outside of the system through the lower discharge port 62, and the exhaust gas is completely combusted by the secondary air in the freeboard 18. As a result, chloride does not enter the freeboard 18, and re-generation of HCl due to decomposition of chloride is suppressed. Other configurations are the same as those in the first embodiment.
【００１８】[0018]
【発明の効果】本発明は上記のように構成されているの
で、つぎのような効果を奏する。 （１） 流動層からの排出管に二段分級装置を設ける
か、又は分級装置と水洗浄部とを設けることにより、塩
化物を含まない流動媒体を循環するので、流動層内の塩
化物濃度を低く保つことができ、塩化物の分解による塩
化水素の再発生を抑制することができる。 （２） 流動層とフリーボードとの間に集塵装置を設け
ることにより、排ガスに同伴される塩化物を含む粉塵が
捕集され、このため、フリーボード部以降への塩化物の
流入が防止され、塩化水素の再発生及び伝熱管へのスケ
ール生成を抑制することができる。Since the present invention is configured as described above, it has the following effects. (1) Since a fluid medium containing no chloride is circulated by providing a two-stage classifying device in the discharge pipe from the fluidized bed or by providing a classifying device and a water washing section, the chloride concentration in the fluidized bed Can be kept low, and re-generation of hydrogen chloride due to decomposition of chloride can be suppressed. (2) By providing a dust collector between the fluidized bed and the freeboard, dust containing chloride that is entrained in the exhaust gas is collected, which prevents chloride from flowing into the freeboard and beyond. The generation of hydrogen chloride and the scale formation on the heat transfer tube can be suppressed.
【図１】本発明の塩化物除去機能を備えた流動層ごみ焼
却炉の一実施例を示す立面説明図である。FIG. 1 is an elevational view showing an embodiment of a fluidized bed refuse incinerator having a chloride removing function of the present invention.
【図２】図１における二段分級装置まわりの詳細を示す
断面説明図である。FIG. 2 is a cross-sectional explanatory view showing details around a two-stage classification device in FIG.
【図３】本発明の流動層ごみ焼却炉の他の例を示す立面
説明図である。FIG. 3 is an elevational view showing another example of the fluidized bed refuse incinerator of the present invention.
【図４】本発明の流動層ごみ焼却炉のさらに他の実施例
を示す立面説明図である。FIG. 4 is an elevational view showing still another embodiment of the fluidized bed refuse incinerator of the present invention.
【図５】従来の流動層ごみ焼却炉の一例を示す立面説明
図である。FIG. 5 is an elevational view showing an example of a conventional fluidized bed refuse incinerator.
１０ 流動層ごみ焼却炉 １２ 流動層 １６ 排出管 ３０ 流動媒体（砂）循環導管 ４０ 目の粗い篩 ４２ 目の細かい篩 ４４ 二段分級装置（二段振動篩） ４６ 不燃物抜出管 ５０ 分級装置（篩） ５２ 不燃物抜出管 ５４ 水供給手段 ５６ 洗浄部 ５８ 液抜出部 ６０ 集塵装置（サイクロン） 10 Fluidized bed waste incinerator 12 Fluidized bed 16 Discharge pipe 30 Fluid medium (sand) circulation conduit 40 Coarse sieve 42 Fine meshed sieve 44 Two-stage classifier (two-stage vibrating sieve) 46 Incombustible substance withdrawal pipe 50 Classifier (Sieve) 52 Incombustibles Extraction Tube 54 Water Supply Means 56 Cleaning Section 58 Liquid Extraction Section 60 Dust Collector (Cyclone)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 片畑 正 兵庫県明石市川崎町１番１号 川崎重工業 株式会社明石工場内 (72)発明者 村岡 利紀 兵庫県明石市川崎町１番１号 川崎重工業 株式会社明石工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadashi Katahata 1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Ltd. Akashi Factory (72) Inventor Toshinori Muraoka 1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy industry Akashi factory
Claims (3)
２）内で、脱塩剤とごみ中の塩素系化合物の燃焼に起因
する塩化水素とを反応させて塩化物とする層内脱塩流動
層ごみ焼却炉において、 流動層（１２）の下部に接続された排出管（１６）に、
上段に目の粗い篩（４０）を有し、下段に目の細かい篩
（４２）を有する二段分級装置（４４）を設け、上段の
目の粗い篩（４０）の上側に不燃物抜出管（４６）を接
続し、下段の目の細かい篩（４２）の上側に流動媒体循
環導管（３０）を接続したことを特徴とする塩化物除去
機能を備えた流動層ごみ焼却炉。1. A fluidized bed (1) of a fluidized bed refuse incinerator (10)
In the inside of 2) in the in-bed desalination fluidized bed refuse incinerator in which a desalting agent and hydrogen chloride resulting from the combustion of chlorine-containing compounds in the refuse are reacted to form chlorides, in the lower part of the fluidized bed (12) To the connected discharge pipe (16),
The upper stage has a coarse mesh (40) and the lower stage has a fine mesh (42) provided with a two-stage classifying device (44), and the incombustibles are extracted above the coarse mesh sieve (40) in the upper stage. A fluidized bed refuse incinerator having a chloride removing function, which is characterized in that a pipe (46) is connected and a fluid medium circulation conduit (30) is connected to an upper side of a lower fine sieve (42).
２）内で、脱塩剤とごみ中の塩素系化合物の燃焼に起因
する塩化水素とを反応させて塩化物とする層内脱塩流動
層ごみ焼却炉において、 流動層（１２）の下部に接続された排出管（１６）に分
級装置（５０）を設け、この分級装置（５０）の上側に
不燃物抜出管（５２）を接続し、この分級装置（５０）
の下側に流動媒体循環導管（３０）を接続し、この流動
媒体循環導管（３０）の途中に、流動媒体中に存在する
塩化物微粉及び灰を洗浄・除去するための水を添加する
水供給手段（５４）を接続して洗浄部（５６）を形成
し、この洗浄部（５６）の下側に灰を含む塩化物水溶液
を抜き出す液抜出部（５８）を設けたことを特徴とする
塩化物除去機能を備えた流動層ごみ焼却炉。2. A fluidized bed (1) of a fluidized bed refuse incinerator (10)
In the inside of 2) in the in-bed desalination fluidized bed refuse incinerator in which a desalting agent and hydrogen chloride resulting from the combustion of chlorine-containing compounds in the refuse are reacted to form chlorides, in the lower part of the fluidized bed (12) The connected discharge pipe (16) is provided with a classifying device (50), and the incombustible substance withdrawing pipe (52) is connected to the upper side of the classifying device (50), and the classifying device (50) is connected.
A fluid medium circulation conduit (30) is connected to the lower side of the fluid medium, and water is added in the middle of the fluid medium circulation conduit (30) to wash / remove chloride fine powder and ash present in the fluid medium. A cleaning unit (56) is formed by connecting the supply means (54), and a liquid extraction unit (58) for extracting the chloride aqueous solution containing ash is provided below the cleaning unit (56). Fluidized bed refuse incinerator with chloride removal function.
２）内で、脱塩剤とごみ中の塩素系化合物の燃焼に起因
する塩化水素とを反応させて塩化物とする層内脱塩流動
層ごみ焼却炉において、 流動層（１２）とフリーボード（１８）との間に、塩化
物を含む粉塵を分離・除去するための集塵装置（６０）
を設けたことを特徴とする塩化物除去機能を備えた流動
層ごみ焼却炉。3. A fluidized bed (1) of a fluidized bed refuse incinerator (10)
In 2), in a bed desalination fluidized bed refuse incinerator, in which a desalting agent reacts with hydrogen chloride resulting from the combustion of chlorine-based compounds in the refuse to form chlorides, a fluidized bed (12) and a freeboard Dust collector (60) for separating and removing dust containing chloride between (18)
A fluidized bed refuse incinerator equipped with a chloride removal function.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5185442A JP2748216B2 (en) | 1993-06-28 | 1993-06-28 | Fluidized bed refuse incinerator with chloride removal function |
| US08/149,280 US5379705A (en) | 1992-11-11 | 1993-11-09 | Fluidized-bed incinerator |
| KR1019930023778A KR970006969B1 (en) | 1992-11-11 | 1993-11-10 | Incinerator |
| DE69316835T DE69316835T2 (en) | 1992-11-11 | 1993-11-10 | Fluid bed waste incineration plant |
| EP93118214A EP0597458B1 (en) | 1992-11-11 | 1993-11-10 | Fluidized-bed incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5185442A JP2748216B2 (en) | 1993-06-28 | 1993-06-28 | Fluidized bed refuse incinerator with chloride removal function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0783421A true JPH0783421A (en) | 1995-03-28 |
| JP2748216B2 JP2748216B2 (en) | 1998-05-06 |
Family
ID=16170869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5185442A Expired - Fee Related JP2748216B2 (en) | 1992-11-11 | 1993-06-28 | Fluidized bed refuse incinerator with chloride removal function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2748216B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997032161A1 (en) * | 1996-02-29 | 1997-09-04 | Mitsubishi Heavy Industries, Ltd. | Method and apparatus for producing superheated steam using heat generated through incineration of wastes |
| KR970066278A (en) * | 1996-03-29 | 1997-10-13 | 이대원 | Fluidized Bed Incinerator Improved Exhaust Structure of Layer Material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741517A (en) * | 1980-08-26 | 1982-03-08 | Ebara Infilco Co Ltd | Sludge incinerating method |
| JPS6345852A (en) * | 1986-08-13 | 1988-02-26 | Fujitsu Ltd | Semiconductor integrated circuit |
-
1993
- 1993-06-28 JP JP5185442A patent/JP2748216B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741517A (en) * | 1980-08-26 | 1982-03-08 | Ebara Infilco Co Ltd | Sludge incinerating method |
| JPS6345852A (en) * | 1986-08-13 | 1988-02-26 | Fujitsu Ltd | Semiconductor integrated circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997032161A1 (en) * | 1996-02-29 | 1997-09-04 | Mitsubishi Heavy Industries, Ltd. | Method and apparatus for producing superheated steam using heat generated through incineration of wastes |
| KR970066278A (en) * | 1996-03-29 | 1997-10-13 | 이대원 | Fluidized Bed Incinerator Improved Exhaust Structure of Layer Material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2748216B2 (en) | 1998-05-06 |
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