JPH0278479A - Method and device for treating incineration ash of waste incineration furnace - Google Patents
Method and device for treating incineration ash of waste incineration furnaceInfo
- Publication number
- JPH0278479A JPH0278479A JP1035779A JP3577989A JPH0278479A JP H0278479 A JPH0278479 A JP H0278479A JP 1035779 A JP1035779 A JP 1035779A JP 3577989 A JP3577989 A JP 3577989A JP H0278479 A JPH0278479 A JP H0278479A
- Authority
- JP
- Japan
- Prior art keywords
- incineration
- ash
- incinerated ash
- waste
- heating
- 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
- 238000004056 waste incineration Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 8
- -1 aromatic chlorine compounds Chemical class 0.000 claims description 16
- 230000014759 maintenance of location Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 abstract description 15
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000460 chlorine Substances 0.000 abstract description 6
- 229910052801 chlorine Inorganic materials 0.000 abstract description 6
- 239000002956 ash Substances 0.000 abstract 7
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract 5
- 239000000567 combustion gas Substances 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 239000012717 electrostatic precipitator Substances 0.000 description 15
- 150000004045 organic chlorine compounds Chemical class 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- OGBQILNBLMPPDP-UHFFFAOYSA-N 2,3,4,7,8-Pentachlorodibenzofuran Chemical compound O1C2=C(Cl)C(Cl)=C(Cl)C=C2C2=C1C=C(Cl)C(Cl)=C2 OGBQILNBLMPPDP-UHFFFAOYSA-N 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NFBOHOGPQUYFRF-UHFFFAOYSA-N oxanthrene Chemical class C1=CC=C2OC3=CC=CC=C3OC2=C1 NFBOHOGPQUYFRF-UHFFFAOYSA-N 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 150000004826 dibenzofurans Chemical class 0.000 description 1
- 230000000816 effect on animals Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Fire-Extinguishing Compositions (AREA)
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ごみ焼却炉の焼却灰処理方法に係り、さらに
詳しくは都市ごみおよび産業廃棄物を焼却処理する際に
発生する焼却灰に含まれる有害な有機塩素化合物、特に
芳香族系塩素化合物の量を低減するごみ焼却炉の焼却灰
処理方法および装置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for disposing of incinerated ash in a garbage incinerator, and more specifically, the present invention relates to a method for disposing of incinerated ash in a garbage incinerator, and more specifically, the present invention relates to a method for disposing of incinerated ash in a garbage incinerator. The present invention relates to a method and apparatus for treating incinerated ash of a garbage incinerator, which reduces the amount of harmful organic chlorine compounds, especially aromatic chlorine compounds.
人体にとって有害な有機塩素化合物、特に芳香族系塩素
化合物、例えばＰＣＤＤ （ポリ塩素化ジベンゾダイオ
キシン）、ＰＣＤＦ（ポリ塩素化ジベンゾフラン）等の
ような高毒性の芳香族系塩素化合物は、農薬の副生物ま
たはごみ焼却の際の２次生成物質として生成され、環境
を汚染することが知られている（Ｋ、０１２ｉｅ ｅ
ｔ ａｌ、Ｃｈｅｍｏｓｐｈｅｒｅ、６，４５５
（１９７７）、およびＴ、Ｗａｋｉｍｏｔｏ ｅｔ
ａＡ、Ｅｎｖｉｒｏｎｍｅｎｔａ６ ＨｅａｌＬｈ
Ｐｅｒｓｐｅｃｔｉｖｅｓ、エエ、１５９ （１
９８５））。Organic chlorine compounds that are harmful to the human body, especially aromatic chlorine compounds, such as highly toxic aromatic chlorine compounds such as PCDD (polychlorinated dibenzodioxin) and PCDF (polychlorinated dibenzofuran), are by-products of agricultural chemicals. It is also produced as a secondary product during waste incineration, and is known to pollute the environment (K, 012ie e
tal, Chemosphere, 6,455
(1977), and T., Wakimoto et al.
aA, Environment6 HealLh
Perspectives, ee, 159 (1
985)).
第７図は、従来の典型的なごみ焼却施設のフローシート
である。この施設は、焼却炉３１と、該焼却炉３１に順
次連結されたガス冷却塔３２、電気集塵器３３および煙
突３４とから主として構成されている。ごみは焼却炉３
１で約７５０〜９００°Ｃで燃焼処理され、その排ガス
はガス冷却塔３２で約３００℃に冷却された後、電気集
塵器３３に入り、焼却灰とガスとに分けられ、焼却灰は
灰排出口から、ガスは煙突３４がらそれぞれ系外に排出
される。FIG. 7 is a flow sheet of a typical conventional waste incineration facility. This facility mainly consists of an incinerator 31, a gas cooling tower 32, an electrostatic precipitator 33, and a chimney 34, which are successively connected to the incinerator 31. Garbage is incinerator 3
1, the exhaust gas is cooled to about 300°C in a gas cooling tower 32, enters an electrostatic precipitator 33, and is separated into incinerated ash and gas. Gas is discharged out of the system through the chimneys 34 from the ash discharge ports.
しかし、上記ごみ焼却処理方法は、ごみ焼却炉から排出
された排ガス中の固形物（主に焼却灰）を除去するだけ
のものであり、有害な有機塩素化合物、特に芳香族系塩
素化合物の除去については何ら考慮されていなかった。However, the above garbage incineration treatment method only removes solid matter (mainly incineration ash) from the exhaust gas discharged from the garbage incinerator, and only removes harmful organic chlorine compounds, especially aromatic chlorine compounds. was not considered at all.
そこで本発明者らは、ごみ焼却処理施設から排出される
芳香族系塩素化合物を低減するために種々の提案を行な
ってきた。Therefore, the present inventors have made various proposals to reduce aromatic chlorine compounds discharged from waste incineration facilities.
まず、先の出願（特願昭６２−７０９３６号）により、
芳香族系塩素化合物の発生過程を明らかにするとともに
、その発生を防止する方法を示した。しかし、この提案
は有機塩素化合物の発生を抑制する効果は充分であるが
、−度発生したものの処理については考慮されていなが
った。First, according to the earlier application (Japanese Patent Application No. 62-70936),
We clarified the generation process of aromatic chlorine compounds and showed a method to prevent their generation. However, although this proposal has a sufficient effect of suppressing the generation of organic chlorine compounds, it does not take into account the treatment of the organic chlorine compounds that are generated.
そこで、別の先願（特願昭６２−３１３２６６号）によ
り、ごみ焼却炉排ガス中の有機塩素化合物の除去方法を
提案した。Therefore, in another prior application (Japanese Patent Application No. 62-313266), we proposed a method for removing organic chlorine compounds from waste incinerator exhaust gas.
上記発明は、焼却炉排ガス中の芳香族系塩素化合物に注
目したものであり、排ガス中の芳香族系塩素化合物は著
しく低減されるが、排ガスと分離された焼却灰中に含ま
れる有害有機塩素化合物の除去については考慮されてお
らず、ごみ焼却処理設備に付帯された電気集塵器（ＥＰ
）およびその他の煤塵除去装置から排出される焼却灰中
には、ＰＣＤＤ、ＰＣＤＦ等の有機塩素化合物力９昆入
するおそれがある。この焼却灰中に含有されてくるＰＣ
ＤＤ、ＰＣＤＦ等は、埋立地等において浸出水等を経て
系外に流れ出し、人間を初めとする動植物に悪影響を及
ぼす可能性があった。The above invention focuses on aromatic chlorine compounds in incinerator exhaust gas, and although aromatic chlorine compounds in exhaust gas are significantly reduced, harmful organic chlorine contained in incineration ash separated from exhaust gas Removal of compounds is not considered, and electrostatic precipitators (EP) attached to waste incineration facilities are not considered.
) and other dust removal equipment may contain organic chlorine compounds such as PCDD and PCDF. PC contained in this incineration ash
DD, PCDF, etc. may flow out of the system through leachate or the like in a landfill, etc., and have an adverse effect on animals and plants including humans.
本発明の目的は、上記従来技術の課題を解決し、ごみ焼
却炉焼却灰中に含まれる有害な有機塩素化合物、特に芳
香族系有機塩素化合物の量を著しく低減することができ
るごみ焼却炉の焼却灰処理方法および装置を提供するこ
とにある。An object of the present invention is to provide a waste incinerator that can solve the problems of the prior art described above and significantly reduce the amount of harmful organic chlorine compounds, especially aromatic organic chlorine compounds, contained in waste incinerator incineration ash. An object of the present invention is to provide an incineration ash processing method and device.
本発明方法は、ごみ焼却処理施設がら回収される焼却灰
を３００°Ｃ以上に加熱して該焼却灰中に含まれる芳香
族系塩素化合物を分解することを特徴とする。The method of the present invention is characterized in that incinerated ash recovered from a waste incineration facility is heated to 300° C. or higher to decompose aromatic chlorine compounds contained in the incinerated ash.
また本発明装置は、ごみ焼却炉から排出される焼却灰を
集塵装置により回収するごみ焼却処理装置において、該
集塵装置の焼却灰を充満させた滞留部に加熱手段を設け
、該焼却灰中に含まれる芳香族系塩素化合物を加熱分解
するようにしたことを特徴とする。In addition, the present invention provides a waste incineration processing apparatus in which incinerated ash discharged from a waste incinerator is collected by a dust collector, in which a heating means is provided in a retention section filled with incinerated ash of the dust collector, and the incinerated ash is The aromatic chlorine compound contained therein is thermally decomposed.
次に、本発明に到った経緯および実験結果について説明
する。Next, the circumstances leading to the present invention and experimental results will be explained.
本発明者らは、ごみ焼却処理施設の電気集塵器により分
離排出された数種のＥＰ灰を採取し、その中に含まれる
有機塩素化合物の定量分析を行なった。その結果を第１
表に示す。The present inventors collected several types of EP ash separated and discharged by an electrostatic precipitator in a waste incineration facility, and conducted a quantitative analysis of the organic chlorine compounds contained therein. The result is the first
Shown in the table.
以下余白
第 １ 表
ＣＤＤ：塩素化ジベンゾダイオキシン
ＣＤＦ ：塩素化ジベンゾフラン
ｎｄ ：ネグリジブルスモール
次に、本発明者らは前記採取したＥＰ灰のうちＥＡ−１
について、処理温度１００〜６００℃で３０分間加熱処
理を行ない、処理後のＥＰ灰について前記同様有機塩素
化合物の定量分析を行なった。その分析結果を第２表に
示す。なお、加熱処理は内容量６０ｍ！のステンレス製
密閉容器を用い、供試ＥＰ灰２Ｑｇについて行なった。The following is the margin: Table 1 CDD: Chlorinated dibenzodioxin CDF: Chlorinated dibenzofuran nd: Negligible small Next, the present inventors discovered EA-1 among the collected EP ash.
A heat treatment was performed for 30 minutes at a treatment temperature of 100 to 600° C., and the treated EP ash was quantitatively analyzed for organic chlorine compounds in the same manner as described above. The analysis results are shown in Table 2. In addition, the heat treatment has an internal capacity of 60m! The test was carried out on 2Qg of EP ash sample using a stainless steel airtight container.
以下余白
第２表から明らかなように、加熱処理温度が３００℃の
ときＰＣＤＤ、ＰＣＤＦおよびクロルベンゼンの塩素数
の多いものから分解して減少し始め、塩素数の小さいも
のに移行する傾向が表われている。処理温度をさらに高
く４００℃にすると前記傾向は顕著になり、５００℃以
上にすると、ＰＣＤＤ、ＰＣＤＦおよびクロルベンゼン
ともｎｄ （ネグリジブルスモール）となることが判明
した。また加熱時間としては、例えば４３０〜６１０℃
の温度では０．１〜１０分程度が好ましい。As is clear from Table 2 in the margin below, when the heat treatment temperature is 300°C, there is a tendency for PCDD, PCDF, and chlorobenzene to begin to decompose and decrease from those with a high chlorine number, and to shift to those with a low chlorine number. It is being said. It was found that when the treatment temperature was raised to 400° C., the above-mentioned tendency became more pronounced, and when the treatment temperature was raised to 500° C. or higher, PCDD, PCDF and chlorobenzene all became nd (negligible small). The heating time is, for example, 430 to 610°C.
At a temperature of about 0.1 to 10 minutes is preferable.
以上の知見に基づき、本発明者らはごみ焼却処理施設か
ら排出される焼却灰を３００℃以上に加熱することによ
り、焼却灰中の有機塩素化合物を著しく低減できること
を見出し、本発明に到達した。焼却灰の加熱温度が３０
０°Ｃ未満では有機塩素化合物が充分に分解されない。Based on the above findings, the present inventors have discovered that organic chlorine compounds in the incinerated ash can be significantly reduced by heating the incinerated ash discharged from garbage incineration facilities to 300°C or higher, and have thus arrived at the present invention. . The heating temperature of incinerated ash is 30
If the temperature is below 0°C, the organic chlorine compound will not be sufficiently decomposed.
また焼却灰の加熱をなるべく酸素の少ない状態、すなわ
ち、滞留部に焼却灰を充満させた状態で行った方が芳香
族系塩素化合物の分解がより促進され、比較的低温でも
これを除去できることが分かった。Additionally, heating the incinerated ash in a state with as little oxygen as possible, that is, with the retention area filled with incinerated ash, will promote the decomposition of aromatic chlorine compounds, making it possible to remove them even at relatively low temperatures. Do you get it.
本発明において、焼却灰を加熱処理する装置としては、
例えば集塵装置の灰バンカに加熱手段を有するスクリュ
ーコンベアを付設したもの、電気集塵装置の集塵貯留部
、例えばスクレーパが配置された電気集塵器底部または
スクリューコンベア近傍に加熱手段（電熱ヒータ等）を
設けたものが挙げられる。この装置は設備コストおよび
ランニングコストが低減できるので有利である。また加
熱手段を設けた滞留部にレベルスイッチを設け、焼却灰
が滞留部に常に充満するようにレベルスイッチと灰排出
用のロータリーパルプとを連動させ、常に充満された状
態で焼却灰を加熱し、無害化を図ることもできる。In the present invention, the apparatus for heat treating incineration ash includes:
For example, a screw conveyor with a heating means is attached to the ash bunker of a dust collector, or a heating means (electrothermal heater) is installed in the dust storage part of an electrostatic precipitator, such as at the bottom of the electrostatic precipitator where a scraper is placed or near the screw conveyor. etc.). This device is advantageous because equipment costs and running costs can be reduced. In addition, a level switch is installed in the retention section provided with the heating means, and the level switch and rotary pulp for ash discharge are linked so that the retention section is always filled with incinerated ash, and the incineration ash is heated while it is always filled. , it is also possible to make it harmless.
本発明において、加熱処理後の焼却灰はできるだけ速＜
２００″Ｃ以下に冷却することが好ましく、これにより
処理後の焼却灰中に塩素が残存している場合でも、有機
塩素化合物の再生を防止することができる。In the present invention, the incinerated ash after heat treatment is
It is preferable to cool the incineration ash to 200″C or less, so that even if chlorine remains in the incinerated ash after treatment, regeneration of the organic chlorine compound can be prevented.
次に、本発明を実施例によりさらに詳細に説明する。 Next, the present invention will be explained in more detail with reference to Examples.
第１図は、本発明の実施例を示す装置系統図である。こ
の＝ｙは、灰バンカ２ｏと、該灰バンカ２０の底部に連
設されたスクリューコンベア２１と、該スクリューコン
ベア２１に付設された熱交換器２２と、前記スクリュー
コンベア２１の端部に設けられた灰排出口２３とから主
として構成されている。FIG. 1 is an apparatus system diagram showing an embodiment of the present invention. This =y is the ash bunker 2o, the screw conveyor 21 connected to the bottom of the ash bunker 20, the heat exchanger 22 attached to the screw conveyor 21, and the end of the screw conveyor 21. It mainly consists of an ash discharge port 23 and an ash discharge port 23.
灰バンカ２０に導入された焼却灰Ａは、スクリューコン
ベア２１により所定の流量で抜出され、熱交換器２２に
おいて、例えば燃焼排ガスの熱を受けて加熱処理され、
有機塩素化合物が除去された後、灰排出口２３から系外
へ排出され、埋立等に用いられる。また、熱交換器２２
の代わりに、例えば前記スクリューコンベア２１のシャ
フト内に熱媒体を導入して焼却灰を加熱してもよい。The incinerated ash A introduced into the ash bunker 20 is extracted at a predetermined flow rate by a screw conveyor 21, and is heated in a heat exchanger 22 by receiving heat from combustion exhaust gas, for example.
After the organic chlorine compounds are removed, the ash is discharged from the system through the ash discharge port 23 and used for landfilling or the like. In addition, the heat exchanger 22
Instead, for example, a heat medium may be introduced into the shaft of the screw conveyor 21 to heat the incinerated ash.
本実施例によれば、オフガスの量が非常に少なく後処理
が容易である。また、設備コストが比較的安価である。According to this embodiment, the amount of off-gas is very small and post-treatment is easy. Additionally, the equipment cost is relatively low.
第３図〜第５図は、焼却灰が集められる滞留部にレベル
スイッチ６０を設け、該滞留部に連結されるロータリー
バルブ６２と連動させて該滞留部に常に焼却灰が充満さ
れるようにし、この滞留部の充満部分に伝熱ヒータ等の
加熱手段を設けて焼却灰の充満状態で焼却灰を加熱する
ようにしたものである。すなわち、第３図は、電気集塵
器底部の焼却灰取り出し部にスクリューコンベア４８お
よびロータリーパルプ５０を設け、該スクリューコンベ
ア４８の上部の焼却灰滞留部にレベルスイッチ６０を設
け、これとロータリーパルプ５０のモータ６２を連動さ
せ、焼却灰の滞留レベルが所定値になるように調節され
る。In Figures 3 to 5, a level switch 60 is provided in a retention section where incinerated ash is collected, and is linked to a rotary valve 62 connected to the retention section so that the retention section is always filled with incineration ash. A heating means such as a heat transfer heater is provided in the full part of this retention part to heat the incinerated ash while it is filled with incinerated ash. That is, in FIG. 3, a screw conveyor 48 and a rotary pulp 50 are provided at the incineration ash removal section at the bottom of the electrostatic precipitator, and a level switch 60 is provided at the incineration ash retention section at the top of the screw conveyor 48. 50 motors 62 are interlocked to adjust the retention level of incinerated ash to a predetermined value.
また第４図は、電気集塵器４０の集塵貯留部の下部に垂
直に縦型のスクリューコンベア４８Ａおよびロータリー
バルブ５０を設け、第３図の場合と同様に加熱ヒータ５
４によって加熱されたスクリューコンベア４８Ａの焼却
灰が一定レベルを保つようにロータリーバルブ５０を調
節するようにしたものである。さらに第５図は、第４図
の伝熱ヒータ５４の代わりに加熱手段として燃焼排ガス
管６３を用いたもので、その他は第４図の場合と同じで
ある。排ガスがスクリューコンへアの外壁と接触してこ
れを加熱する。Further, in FIG. 4, a vertical screw conveyor 48A and a rotary valve 50 are provided vertically at the lower part of the dust collection storage part of the electrostatic precipitator 40, and a heater 5 is installed as in the case of FIG.
The rotary valve 50 is adjusted so that the incinerated ash on the screw conveyor 48A heated by 4 is maintained at a constant level. Further, in FIG. 5, a combustion exhaust gas pipe 63 is used as a heating means in place of the heat transfer heater 54 in FIG. 4, and other aspects are the same as in FIG. 4. The exhaust gas contacts and heats the outer wall of the screw container.
さらに第６図に示した装置系統図は、電気集塵器４０で
処理された焼却灰を造粒装置６４で所定のサイズに造粒
固化した後、これをライン７２から流動層焼却炉に送り
、６００゛〜８００℃に加熱して処理した後、スクリュ
ーコンベア６８、振動ふるい７０を経て不燃物を含む粗
大物をライン７６から系外排出し、所定サイズ以下の流
動媒体等をライン７４を経由して流動層炉６６に戻すよ
うにしたものである。この実施例によれば、電気集塵器
４０で処理された焼却灰はさらに造粒装置６４で所定の
形状に造粒した後、流動層焼却炉で高温処理するので、
焼却灰中の芳香族系塩素化合物が完全に無害化処理され
、系外に全（排出されないという利点がある。Furthermore, in the system diagram shown in FIG. 6, incinerated ash treated with an electrostatic precipitator 40 is granulated and solidified to a predetermined size in a granulator 64, and then sent to a fluidized bed incinerator through a line 72. , after being heated and treated at 600° to 800°C, coarse materials including incombustibles are discharged from the system through a line 76 via a screw conveyor 68 and a vibrating sieve 70, and fluidized media etc. of a predetermined size or less are passed through a line 74. The liquid is then returned to the fluidized bed furnace 66. According to this embodiment, the incinerated ash treated by the electrostatic precipitator 40 is further granulated into a predetermined shape by the granulator 64, and then subjected to high temperature treatment in the fluidized bed incinerator.
The aromatic chlorine compounds in the incineration ash are completely rendered harmless and have the advantage of not being completely discharged outside the system.
本発明によれば１．ごみ焼却処理施設から排出される焼
却灰を３００℃以上に加熱することにより、焼却灰中の
有機塩素化合物を効果的に分解処理することができる。According to the present invention: 1. By heating the incinerated ash discharged from a waste incineration treatment facility to 300° C. or higher, organic chlorine compounds in the incinerated ash can be effectively decomposed.
第１図は、本発明の一実施例を示すごみ焼却炉の焼却灰
処理方法の装置系統図、第３図、第４図および第５図は
、それぞれ本発明の焼却灰処理装置の他の実施例を示す
説明図、第６図は、本発明を応用した造粒装置を組込ん
だ焼却処理設備の装置系統図、および第７図は、従来の
ごみ焼却処理施設のフローを示す図である。
２０・・・灰バンカ、２１・・・スクリューコンベア、
２３・・・灰排出口、４０・・・電気集Ｕ器、４４・・
・スクレーバ、４８・・・スクリューコンヘア、５０・
・・ロータリーバルブ、５４・・・ヒータ、５６・・・
焼却灰。FIG. 1 is an equipment system diagram of an incinerated ash processing method for a waste incinerator showing one embodiment of the present invention, and FIGS. 3, 4, and 5 show other incinerated ash processing equipment of the present invention, respectively. An explanatory diagram showing an embodiment, FIG. 6 is an equipment system diagram of an incineration facility incorporating a granulation device to which the present invention is applied, and FIG. 7 is a diagram showing a flow of a conventional waste incineration facility. be. 20... Ash banker, 21... Screw conveyor,
23... Ash discharge port, 40... Electric collector U, 44...
・Scraper, 48...Screw con hair, 50・
...Rotary valve, 54...Heater, 56...
Incineration ash.
Claims (2)
℃以上に加熱して該焼却灰中に含まれる芳香族系塩素化
合物を分解することを特徴とするごみ焼却炉の焼却灰処
理方法。(1) 300 yen of incinerated ash collected from garbage incineration facilities
A method for treating incinerated ash in a garbage incinerator, which comprises heating the incinerated ash to a temperature above 0.degree. C. to decompose aromatic chlorine compounds contained in the incinerated ash.
り回収するごみ焼却処理装置において、該集塵装置の焼
却灰を充満させた滞留部に加熱手段を設け、該焼却灰中
に含まれる芳香族系塩素化合物を加熱分解するようにし
たことを特徴とするごみ焼却炉の焼却灰処理装置。(2) In a waste incineration processing device that collects incinerated ash discharged from a waste incinerator using a dust collector, a heating means is provided in a retention section filled with incinerated ash of the dust collector, and the incinerated ash is An incineration ash processing device for a garbage incinerator, characterized in that it is configured to thermally decompose aromatic chlorine compounds produced in the waste incinerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1035779A JP2725819B2 (en) | 1988-06-15 | 1989-02-15 | Waste incinerator ash treatment method and apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63-147193 | 1988-06-15 | ||
| JP14719388 | 1988-06-15 | ||
| JP1035779A JP2725819B2 (en) | 1988-06-15 | 1989-02-15 | Waste incinerator ash treatment method and apparatus |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9221608A Division JPH1080675A (en) | 1997-08-18 | 1997-08-18 | Treatment of incineration ash from trash incinerator and device therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0278479A true JPH0278479A (en) | 1990-03-19 |
| JP2725819B2 JP2725819B2 (en) | 1998-03-11 |
Family
ID=26374778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1035779A Expired - Lifetime JP2725819B2 (en) | 1988-06-15 | 1989-02-15 | Waste incinerator ash treatment method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2725819B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03275184A (en) * | 1990-03-26 | 1991-12-05 | Mitsui Eng & Shipbuild Co Ltd | Retreatment of refuse incineration ash and equipment therefor |
| JPH05103844A (en) * | 1991-10-16 | 1993-04-27 | Nkk Corp | Thermal decomposition of dioxin in ash discharged from refuse incinerator |
| JPH05104073A (en) * | 1991-10-16 | 1993-04-27 | Nkk Corp | Method for thermally decomposing dioxin in ash discharged from waste refuse incinerator |
| JPH06159646A (en) * | 1992-09-11 | 1994-06-07 | Sanzou Kankyo Eng Kk | Method for treating incinerated ash |
| WO1995033585A1 (en) * | 1994-06-06 | 1995-12-14 | Mitsui Engineering & Shipbuilding Co., Ltd. | Device and method for heat dechlorinating collected dust and ash |
| JP2017148770A (en) * | 2016-02-26 | 2017-08-31 | 三菱マテリアル株式会社 | Processing method for chlorine-containing burned ash |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659122A (en) * | 1979-10-22 | 1981-05-22 | Nippon Kokan Kk <Nkk> | Melting treatment of incinerated ash of refuse |
| JPS572916A (en) * | 1980-06-06 | 1982-01-08 | Daido Steel Co Ltd | Melting disposal furnace for incineration residue |
| WO1988000483A1 (en) * | 1986-07-11 | 1988-01-28 | Hagenmaier Hans Paul | Process for decomposing polyhalogenated compounds |
-
1989
- 1989-02-15 JP JP1035779A patent/JP2725819B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659122A (en) * | 1979-10-22 | 1981-05-22 | Nippon Kokan Kk <Nkk> | Melting treatment of incinerated ash of refuse |
| JPS572916A (en) * | 1980-06-06 | 1982-01-08 | Daido Steel Co Ltd | Melting disposal furnace for incineration residue |
| WO1988000483A1 (en) * | 1986-07-11 | 1988-01-28 | Hagenmaier Hans Paul | Process for decomposing polyhalogenated compounds |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03275184A (en) * | 1990-03-26 | 1991-12-05 | Mitsui Eng & Shipbuild Co Ltd | Retreatment of refuse incineration ash and equipment therefor |
| JPH05103844A (en) * | 1991-10-16 | 1993-04-27 | Nkk Corp | Thermal decomposition of dioxin in ash discharged from refuse incinerator |
| JPH05104073A (en) * | 1991-10-16 | 1993-04-27 | Nkk Corp | Method for thermally decomposing dioxin in ash discharged from waste refuse incinerator |
| JPH06159646A (en) * | 1992-09-11 | 1994-06-07 | Sanzou Kankyo Eng Kk | Method for treating incinerated ash |
| WO1995033585A1 (en) * | 1994-06-06 | 1995-12-14 | Mitsui Engineering & Shipbuilding Co., Ltd. | Device and method for heat dechlorinating collected dust and ash |
| JP2017148770A (en) * | 2016-02-26 | 2017-08-31 | 三菱マテリアル株式会社 | Processing method for chlorine-containing burned ash |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2725819B2 (en) | 1998-03-11 |
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