JP2003126807A - Incineration ash treatment device - Google Patents
Incineration ash treatment deviceInfo
- Publication number
- JP2003126807A JP2003126807A JP2001330814A JP2001330814A JP2003126807A JP 2003126807 A JP2003126807 A JP 2003126807A JP 2001330814 A JP2001330814 A JP 2001330814A JP 2001330814 A JP2001330814 A JP 2001330814A JP 2003126807 A JP2003126807 A JP 2003126807A
- Authority
- JP
- Japan
- Prior art keywords
- incinerator
- exhaust gas
- incineration ash
- ash
- aging
- 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.)
- Pending
Links
- 230000032683 aging Effects 0.000 claims abstract description 45
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 18
- 239000002699 waste material Substances 0.000 claims abstract description 9
- 150000002013 dioxins Chemical class 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 150000002739 metals Chemical class 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- 239000002440 industrial waste Substances 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 69
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 239000001569 carbon dioxide Substances 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 101100316860 Autographa californica nuclear polyhedrosis virus DA18 gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101000879758 Homo sapiens Sjoegren syndrome nuclear autoantigen 1 Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 102100037330 Sjoegren syndrome nuclear autoantigen 1 Human genes 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- -1 carbonate compound Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Chimneys And Flues (AREA)
- Gasification And Melting Of Waste (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば一般廃棄物
及び産業廃棄物の焼却灰を無害化して有効利用する為の
焼却灰処理装置の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an incineration ash treatment apparatus for detoxifying and effectively utilizing incineration ash of general waste and industrial waste.
【０００２】[0002]
【従来の技術】焼却炉からの焼却灰は、管理型処分場へ
の埋立処理が主流であり、一部に於て溶融スラグ化が行
なわれている。ところが、埋立処理は、処分場の逼迫に
依り都市近郊に新しい処分場を建設できないので、問題
であった。他方、溶融スラグ化は、焼却灰の無害化や処
分場の延命化や資源の有効活用ができるので、普及しつ
つある。発生するスラグも、土木材料等に利用できる。
然しながら、多大の熱エネルギを必要とすると共に、地
球温暖化ガスとなる二酸化炭素（ＣＯ2 ）の発生量が大
きいので、問題であった。2. Description of the Related Art Incineration ash from an incinerator is mainly landfilled in a controlled disposal site, and molten slag is partially formed. However, landfilling was a problem because a new landfill site could not be built near the city due to the tightness of the landfill site. On the other hand, molten slag is becoming popular because it can make incinerated ash harmless, prolong the life of the disposal site, and effectively use resources. The generated slag can also be used for civil engineering materials.
However, this is a problem because it requires a large amount of heat energy and generates a large amount of carbon dioxide (CO 2 ) which is a global warming gas.
【０００３】ところで、焼却灰処理装置としては、例え
ば特開平１０−１５１４３７号、特許第３１０８０６１
号（特開２０００−７９３８１号）、特開２０００−２
３３１７４号、特開２０００−２７９９２０号等に記載
されたものが知られている。By the way, as an incineration ash treatment device, for example, Japanese Patent Laid-Open No. 10-151437 and Japanese Patent No. 3108061.
No. 2000-79381 and 2000-2
Those described in JP-A-33174 and JP-A-2000-279920 are known.
【０００４】[0004]
【発明が解決しようとする課題】然しながら、従来の何
れのものも、焼却灰を無害化して有効利用を図るもので
あるが、簡易且つ安価なものではなかった。However, all of the conventional ones are intended to make the incinerated ash harmless for effective use, but are not simple and inexpensive.
【０００５】本発明は、叙上の問題点に鑑み、これを解
消する為に創案されたもので、その課題とする処は、簡
易且つ安価に焼却灰を無害化して有効利用を図る様にし
た焼却灰処理装置を提供するにある。In view of the above problems, the present invention was devised to solve this problem, and the problem is to make the incinerated ash harmless and easy to use effectively. To provide the incineration ash processing device.
【０００６】[0006]
【課題を解決するための手段】本発明の焼却灰処理装置
は、基本的には、廃棄物を焼却する焼却炉と、焼却炉か
らの排ガスを浄化処理する排ガス処理装置と、焼却炉か
らの焼却灰に排ガス処理装置からの排ガスを接触させて
焼却灰中の重金属類を安定化させるエージング装置と、
から構成した事に特徴が存する。The incinerator ash treatment apparatus of the present invention basically comprises an incinerator for incinerating waste, an exhaust gas treatment apparatus for purifying exhaust gas from the incinerator, and an incinerator for treating the exhaust gas. An aging device that stabilizes heavy metals in the incineration ash by contacting the exhaust gas from the exhaust gas treatment device with the incineration ash,
The feature is that it is composed of.
【０００７】焼却炉からは、焼却灰と排ガスが生成され
て排出される。焼却炉からの排ガスは、排ガス処理装置
に依り浄化処理される。他方、焼却炉からの焼却灰は、
エージング装置に送られ、排ガス処理装置からの排ガス
が供給されて排ガス中に含まれている二酸化炭素を積極
的に焼却灰に接触させ、焼却灰中の重金属類を炭酸塩化
させて不溶性の安定した反応物にされた後、エージング
処理物として排出される。エージング装置を設けて焼却
炉からの焼却灰に排ガス処理装置からの排ガスを接触さ
せて焼却灰中の重金属類を安定化させる様にしたので、
通常１〜３ヶ月必要としていたエージング期間を１日程
度に短縮する事ができ、簡易且つ安価に焼却灰を無害化
して有効利用を図る事ができる。Incineration ash and exhaust gas are produced and discharged from the incinerator. Exhaust gas from the incinerator is purified by an exhaust gas treatment device. On the other hand, the incineration ash from the incinerator is
The carbon dioxide contained in the exhaust gas is positively brought into contact with the incineration ash sent to the aging device and the exhaust gas from the exhaust gas treatment device is supplied, and the heavy metals in the incineration ash are carbonated to stabilize the insolubility. After being made into a reaction product, it is discharged as an aged product. Since an aging device was installed and the exhaust gas from the exhaust gas treatment device was brought into contact with the incineration ash from the incinerator, the heavy metals in the incinerator ash were stabilized.
It is possible to shorten the aging period normally required for 1 to 3 months to about 1 day, and to make the incinerated ash harmless and to effectively utilize it at a low cost.
【０００８】焼却炉からの焼却灰中の粗物や金属類を除
去する前処理装置を備えているのが好ましい。この様に
すれば、粗物や金属類を予め除去できるので、それだけ
エージング処理効率を向上できる。It is preferable to provide a pretreatment device for removing coarse substances and metals in the incineration ash from the incinerator. In this way, since coarse substances and metals can be removed in advance, the aging treatment efficiency can be improved accordingly.
【０００９】焼却炉からの焼却灰を分級してダイオキシ
ン類を除去する分級装置を備えているのが好ましい。こ
の様にすれば、簡単にダイオキシン類を除去できると共
に、エージング処理する焼却灰を減少できるので、それ
だけエージング処理効率を向上できる。It is preferable to provide a classifying device for classifying incinerated ash from the incinerator to remove dioxins. In this way, dioxins can be easily removed and the incineration ash to be aged can be reduced, so that the aging treatment efficiency can be improved accordingly.
【００１０】エージング装置は、焼却灰を所定量づつエ
ージング処理するバッチ式であるのが好ましい。この様
にすれば、構造が簡単で設備費の低減を図る事ができ
る。The aging device is preferably a batch type in which the incineration ash is aged by a predetermined amount. By doing so, the structure is simple and the equipment cost can be reduced.
【００１１】エージング装置は、焼却灰を連続的にエー
ジング処理する連続式であるのが好ましい。この様にす
れば、焼却灰を間断なく処理する事ができ、より一層エ
ージング処理効率の向上を図る事ができる。The aging device is preferably of a continuous type for continuously aging incinerated ash. By doing so, the incineration ash can be treated without interruption, and the aging treatment efficiency can be further improved.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を、図
面に基づいて説明する。図１は、本発明の焼却灰処理装
置を示す概要図。図２は、バッチ式のエージング装置を
示す概要図。図３は、粒径別ダイオキシン類含有量を示
すグラフである。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing an incineration ash treatment apparatus of the present invention. FIG. 2 is a schematic diagram showing a batch type aging device. FIG. 3 is a graph showing the content of dioxins according to particle size.
【００１３】焼却灰処理装置１は、焼却炉２、排ガス処
理装置３、エージング装置４、前処理装置５、分級装置
６とからその主要部が構成されている。The incinerator ash treatment apparatus 1 is mainly composed of an incinerator 2, an exhaust gas treatment apparatus 3, an aging apparatus 4, a pretreatment apparatus 5 and a classification apparatus 6.
【００１４】焼却炉２は、廃棄物を焼却するもので、こ
の例では、一般廃棄物及び産業廃棄物を焼却するものに
してあり、焼却灰Ａと排ガスＢが生成される。The incinerator 2 incinerates waste, and in this example, incinerates general waste and industrial waste, and produces incineration ash A and exhaust gas B.
【００１５】排ガス処理装置３は、焼却炉２からの排ガ
スＢを浄化処理するもので、この例では、バグフィルタ
にしてあり、入口側にはガス減温装置７を介して焼却炉
２が接続されていると共に、出口側には誘引送風機８を
介して煙突９が接続されている。排ガス処理装置３は、
焼却炉２からの排ガスＢ中の塩化水素（ＨＣｌ）や二酸
化硫黄（ＳＯ2 ）等の有害ガスを除去する為に、入口側
に薬品Ｃである消石灰等のアルカリ反応剤が吹き込ま
れ、排ガスＢ中の煤塵と共に反応生成物を除去する様に
してある。The exhaust gas treatment device 3 purifies the exhaust gas B from the incinerator 2, and is a bag filter in this example, and the incinerator 2 is connected to the inlet side through the gas temperature reducing device 7. At the same time, a chimney 9 is connected to the outlet side via an induction blower 8. The exhaust gas treatment device 3 is
In order to remove harmful gases such as hydrogen chloride (HCl) and sulfur dioxide (SO 2 ) in the exhaust gas B from the incinerator 2, an alkaline reactant such as slaked lime, which is the chemical C, is blown into the exhaust gas B to remove the harmful gas. The reaction products are removed together with the dust inside.
【００１６】エージング装置４は、焼却炉２からの焼却
灰Ａに排ガス処理装置３からの排ガスＢを接触させて焼
却灰Ａ中の重金属類を安定化させるもので、この例で
は、焼却灰Ａを一定量づつエージング処理するバッチ式
にしてある。バッチ式のエージング装置４は、多孔板１
０を備えてその上の上室１１に一定量の焼却灰Ａを収容
できる容器１２と、容器１２の下室１３に二酸化炭素を
含有した排ガスＢを導入するガス導入路１４と、容器１
２の上室１１から排ガスＢを導出させるガス導出路１５
と、ガス導入路１４とガス導出路１５に設けられて容器
１２に対する焼却灰Ａの給排時に排ガスＢを通断する開
閉弁１６とを備えて居り、複数（三つ）のものを並設し
ている。ガス導入路１４は、排ガス処理装置３の出口側
に接続され、その途中には、排ガス循環送風機１７が介
設されている。ガス導出路１５は、排ガス処理装置３の
入口側に接続されている。The aging device 4 contacts the incineration ash A from the incinerator 2 with the exhaust gas B from the exhaust gas treatment device 3 to stabilize the heavy metals in the incineration ash A. In this example, the incineration ash A is used. Is a batch type in which a certain amount of aging is performed. The batch type aging device 4 is a perforated plate 1
A container 12 which is provided with 0 and can accommodate a certain amount of incinerated ash A in an upper chamber 11 above it; a gas introduction passage 14 for introducing an exhaust gas B containing carbon dioxide into a lower chamber 13 of the container 12;
2 gas discharge path 15 for discharging exhaust gas B from the upper chamber 11
And an on-off valve 16 which is provided in the gas introduction path 14 and the gas derivation path 15 and cuts off the exhaust gas B when the incineration ash A is supplied to and discharged from the container 12, and a plurality (three) of them are provided in parallel. is doing. The gas introduction passage 14 is connected to the outlet side of the exhaust gas treatment device 3, and an exhaust gas circulation blower 17 is provided in the middle thereof. The gas outlet path 15 is connected to the inlet side of the exhaust gas treatment device 3.
【００１７】前処理装置５は、焼却炉２からの焼却灰Ａ
中の粗物Ｄや金属類Ｅを除去するもので、この例では、
図略しているが、スクリーン、破砕装置、磁選機、アル
ミ選別機等を備えて居り、粗物Ｄと金属類Ｅとが除去さ
れる様にしてある。The pretreatment device 5 is the incineration ash A from the incinerator 2.
It removes the coarse material D and the metals E in it. In this example,
Although not shown, a screen, a crushing device, a magnetic separator, an aluminum sorter and the like are provided so that the coarse material D and the metals E are removed.
【００１８】分級装置６は、焼却炉２からの焼却灰Ａを
分級してダイオキシン類（ＤＸＮ）を除去するもので、
この例では、焼却灰Ａを分級してダイオキシン類濃度が
４０ｐｇ／ｇ以上の焼却灰を除外する振動篩にしてあ
る。つまり、所定の篩目（１又は２ｍｍ）を備えたもの
にしてあり、篩上が４０ｐｇ／ｇ以下の焼却灰、篩下が
４０ｐｇ／ｇ以上の焼却灰に分級できる様にしてある。
４０ｐｇ／ｇはドイツの農用地の基準であるが、ダイオ
キシン類の削減目標値としての１例であり、もっと厳し
くしても良いし、焼却灰自体がもっと低い濃度であれ
ば、分級機のふるい目を小さくできるし、目標基準以下
の焼却灰なら、分級しなくても良いことになる。The classifier 6 classifies the incinerated ash A from the incinerator 2 to remove dioxins (DXN).
In this example, the incineration ash A is classified into a vibrating sieve that excludes incineration ash having a dioxin concentration of 40 pg / g or more. That is, it has a predetermined sieve mesh (1 or 2 mm) so that it can be classified into incinerated ash of 40 pg / g or less on the upper side and 40 pg / g or more on the lower side of the screen.
40 pg / g is the standard for agricultural land in Germany, but it is an example as a reduction target value for dioxins, and it may be stricter. If the incineration ash itself has a lower concentration, it will be the sieve of the classifier. Can be made small, and if the incineration ash is below the target standard, it is not necessary to classify it.
【００１９】次に、この様な構成に基づいてその作用を
述解する。焼却炉２からは、焼却灰Ａと排ガスＢが生成
されて排出される。焼却炉２からの排ガスＢは、ガス減
温装置７に依り減温されて排ガス処理装置３に依り浄化
処理された後、誘引送風機８に依り誘引されて煙突９か
ら大気中に放出される。他方、焼却炉２からの焼却灰Ａ
は、前処理装置５に依り粗物Ｄや金属類Ｅが除去される
と共に、分級装置６に依り粒径が小さいダイオキシン類
濃度が４０ｐｇ／ｇ以上のものが分級されて除去された
後、エージング装置４に送られる。エージング装置４で
は、排ガス処理装置３からの排ガスＢが排ガス循環送風
機１７に依り供給されて排ガスＢ中に含まれている二酸
化炭素を積極的に焼却灰Ａに接触させ、焼却灰Ａ中の重
金属類を炭酸塩化させて不溶性の安定した反応物にされ
た後、エージング処理物Ｆとして排出される。Next, the operation will be described based on such a configuration. From the incinerator 2, incineration ash A and exhaust gas B are generated and discharged. The exhaust gas B from the incinerator 2 is cooled by the gas temperature reduction device 7 and purified by the exhaust gas treatment device 3, and then is attracted by the induction blower 8 to be discharged into the atmosphere from the chimney 9. On the other hand, incineration ash A from the incinerator 2
The coarse material D and the metals E are removed by the pretreatment device 5, and the dioxins having a small particle diameter of 40 pg / g or more are classified and removed by the classification device 6, and then the aging is performed. Sent to device 4. In the aging device 4, the exhaust gas B from the exhaust gas treatment device 3 is supplied by the exhaust gas circulation blower 17 and the carbon dioxide contained in the exhaust gas B is positively contacted with the incineration ash A, and the heavy metal in the incineration ash A is The compounds are carbonated to form an insoluble stable reaction product, and then discharged as an aged product F.
【００２０】つまり、焼却炉２からの焼却灰Ａ中には、
ダイオキシン類や重金属類を含んで居り、有効利用を図
るには、無害化処理を行なう必要がある。そして、この
為には、安全基準が必要であるが、ダイオキシン類に就
いては、基準がないので、ドイツの農用地の基準である
４０ｐｇ／ｇ以下であれば良いとされる例が多い。重金
属類に就いては、土壌環境基準を満足すれば良いとする
のが一般的である。That is, in the incineration ash A from the incinerator 2,
It contains dioxins and heavy metals and needs to be detoxified for effective utilization. For this purpose, a safety standard is required, but since there is no standard for dioxins, it is often sufficient that the standard is 40 pg / g or less, which is the standard for agricultural land in Germany. As for heavy metals, it is generally accepted that they should meet the soil environmental standards.
【００２１】ダイオキシン類に就いては、焼却灰Ａの性
状やごみ質に依り含有量が異なるが、図３に示す如く、
焼却灰Ａの粒径が小さいものに多く含まれている。従っ
て、焼却灰Ａを分級装置６で分級し、粒径が小さくダイ
オキシン類濃度が４０ｐｇ／ｇ以上の焼却灰Ａを除外す
る。重金属類に就いては、土壌環境基準のうち、鉛（Ｐ
ｂ）が０．０１ｍｇ／ｌという厳しい基準をオーバする
事が多い（他の重金属類は、問題がない）。そこで、重
金属類の溶出抑制方法としては、エージングを行なう。
エージングとは、一般環境下に放置して熟成する事であ
り、大気中の二酸化炭素を焼却灰中の重金属類と反応さ
せて炭酸化合物を作り、自身溶出し難い性状に変化させ
るものである（Ｍ+＋ＣＯ2 →ＭＣＯ3 ）。エージング
期間は、通常１〜３ヶ月掛かっていた。Regarding dioxins, the content varies depending on the properties of the incinerated ash A and the quality of the waste, but as shown in FIG.
A large amount of incinerated ash A is contained in the small ones. Therefore, the incinerated ash A is classified by the classifier 6 and the incinerated ash A having a small particle size and a dioxin concentration of 40 pg / g or more is excluded. Regarding heavy metals, lead (P
b) often exceeds the strict standard of 0.01 mg / l (other heavy metals have no problem). Therefore, aging is performed as a method for suppressing the elution of heavy metals.
Aging is to leave it in a general environment for aging, where carbon dioxide in the atmosphere reacts with heavy metals in incinerated ash to form a carbonate compound, which changes into a property that is difficult to elute itself ( M + + CO 2 → MCO 3 ). The aging period usually took 1 to 3 months.
【００２２】このエージングを促進する為に、焼却炉２
から排出されて排ガス処理装置３に依り浄化処理された
排ガスＢを利用する。一般的に排ガスＢ中には、二酸化
炭素 が１０〜１５％程度含まれて居り、この二酸化炭素
を含んだ排ガスＢを、焼却灰Ａ中に吹き込んでエージン
グを促進させる。この様にすると、エージング期間は、
１日程度にする事ができる。To promote this aging, the incinerator 2
And was purified by the exhaust gas treatment device 3.
The exhaust gas B is used. Generally, in the exhaust gas B,
carbon About 10 to 15% is included in this carbon dioxide
Exhaust gas B containing B is blown into incineration ash A
To accelerate. By doing this, the aging period is
It can be about one day.
【００２３】焼却炉２からの焼却灰Ａを分級装置６に依
り分級する様にしたので、ダイオキシン類を容易に４０
ｐｇ／ｇ以下にできる。分級前にダイオキシン類の濃度
が４０ｐｇ／ｇ以下であれば、分級する必要がない。重
金属類の溶出を防止する為に排ガスＢ中の二酸化炭素に
依りエ―ジングを促進する様にしたので、通常１〜３ヶ
月必要としていたエージング期間を１日程度に短縮する
事ができる。エージング期間を大幅に短縮できるので、
エージング装置４やこれを含む焼却灰処理装置１の省ス
ペース化や省コスト化を図る事ができる。Since the incineration ash A from the incinerator 2 is classified by the classifying device 6, dioxins can be easily separated by 40
It can be pg / g or less. If the concentration of dioxins is 40 pg / g or less before classification, classification is not necessary. Since the aging is promoted by the carbon dioxide in the exhaust gas B in order to prevent the elution of heavy metals, the aging period normally required for 1 to 3 months can be shortened to about 1 day. Since the aging period can be greatly shortened,
It is possible to save space and cost of the aging device 4 and the incineration ash processing device 1 including the aging device 4.
【００２４】尚、エージング装置４は、先の例では、バ
ッチ式であったが、これに限らず、例えば焼却灰Ａを連
続的にエージング処理する連続式であっても良い。連続
式のエージング装置４は、図４に示す如く、ロータリキ
ルン１８と、これの下流側から排ガスＢを導入するガス
導入路１５と、ロータリキルン１８の上流側から排ガス
Ｂを排出するガス導出路１６とを備えている。ロータリ
キルン１８は、焼却灰Ａを供給する供給フィーダ１９
と、下流側が下がるべく所定角度傾斜されて回転される
キルン胴２０と、これの下流側に設けられて焼却灰Ａを
排出する出口フード２１とを備えている。Although the aging device 4 is a batch type in the above example, the aging device 4 is not limited to this and may be, for example, a continuous type for continuously aging the incinerated ash A. As shown in FIG. 4, the continuous aging device 4 includes a rotary kiln 18, a gas introduction path 15 for introducing the exhaust gas B from the downstream side thereof, and a gas discharge path for discharging the exhaust gas B from the upstream side of the rotary kiln 18. 16 and 16. The rotary kiln 18 is a supply feeder 19 for supplying the incineration ash A.
And a kiln barrel 20 that is rotated at a predetermined angle so that the downstream side is lowered, and an outlet hood 21 that is provided on the downstream side and discharges the incineration ash A.
【００２５】[0025]
【発明の効果】以上、既述した如く、本発明に依れば、
次の様な優れた効果を奏する事ができる。
（１） 廃棄物を焼却する焼却炉と、焼却炉からの排ガ
スを処理する排ガス処理装置と、焼却炉からの焼却灰に
排ガス処理装置からの排ガスを接触させて焼却灰中の重
金属類を安定化させるエージング装置とで構成し、とり
わけエージング装置を設けて焼却炉からの焼却灰に排ガ
ス処理装置からの排ガスを接触させて焼却灰中の重金属
類を安定化させる様にしたので、簡易且つ安価に焼却灰
を無害化して有効利用を図る事ができる。
（２） エージング装置を設けて焼却炉からの焼却灰に
排ガス処理装置からの排ガスを接触させて焼却灰中の重
金属類を安定化させる様にしたので、通常１〜３ヶ月必
要としていたエージング期間を１日程度に短縮する事が
できる。As described above, according to the present invention,
The following excellent effects can be achieved. (1) Incinerator that incinerates waste, exhaust gas treatment device that treats exhaust gas from the incinerator, and incinerator ash from the incinerator is contacted with exhaust gas from the exhaust gas treatment device to stabilize heavy metals in the incinerator ash It is composed of an aging device to make the ashing device, and in particular, an aging device is provided to bring the exhaust gas from the exhaust gas treatment device into contact with the incineration ash from the incinerator to stabilize the heavy metals in the incinerator ash, so it is simple and inexpensive. The incineration ash can be made harmless and can be effectively used. (2) Since an aging device was installed to contact the incineration ash from the incinerator with the exhaust gas from the exhaust gas treatment device to stabilize the heavy metals in the incinerator ash, it usually takes 1 to 3 months to complete the aging period. Can be shortened to about one day.
【図１】本発明の焼却灰処理装置を示す概要図。FIG. 1 is a schematic diagram showing an incineration ash treatment apparatus of the present invention.
【図２】バッチ式のエージング装置を示す概要図。FIG. 2 is a schematic diagram showing a batch type aging device.
【図３】粒径別ダイオキシン類含有量を示すグラフ。FIG. 3 is a graph showing the content of dioxins according to particle size.
【図４】連続式のエージング装置を示す概要図。FIG. 4 is a schematic diagram showing a continuous aging device.
１…焼却灰処理装置、２…焼却炉、３…排ガス処理装
置、４…エージング装置、５…前処理装置、６…分級装
置、７…ガス減温装置、８…誘引送風機、９…煙突、１
０…多孔板、１１…上室、１２…容器、１３…下室、１
４…ガス導入路、１５…ガス導出路、１６…開閉弁、１
７…排ガス循環送風機、１８…ロータリキルン、１９…
供給フィーダ、２０…キルン胴、２１…出口フード、Ａ
…焼却灰、Ｂ…排ガス、Ｃ…薬品、Ｄ…粗物、Ｅ…金属
類、Ｆ…エージング処理物。DESCRIPTION OF SYMBOLS 1 ... Incineration ash processing apparatus, 2 ... Incinerator, 3 ... Exhaust gas processing apparatus, 4 ... Aging apparatus, 5 ... Pretreatment apparatus, 6 ... Classifying apparatus, 7 ... Gas temperature reducing apparatus, 8 ... Induction blower, 9 ... Chimney, 1
0 ... perforated plate, 11 ... upper chamber, 12 ... container, 13 ... lower chamber, 1
4 ... Gas introduction path, 15 ... Gas discharge path, 16 ... On-off valve, 1
7 ... Exhaust gas circulation blower, 18 ... Rotary kiln, 19 ...
Supply feeder, 20 ... Kiln barrel, 21 ... Exit hood, A
… Incinerated ash, B… Exhaust gas, C… Chemicals, D… Coarse products, E… Metals, F… Aging-treated products.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０７Ｂ 1/00 Ｂ０９Ｂ 3/00 ３０３Ｈ 1/28 5/00 Ｎ Ｂ０９Ｂ 5/00 Ｂ０１Ｄ 53/34 １３４Ａ Ｆ２３Ｊ 1/00 １２４Ｚ 15/00 Ｆ２３Ｊ 15/00 Ｂ Ｆターム(参考） 3K061 NA02 NA14 3K070 DA03 DA05 DA07 DA16 DA23 DA40 DA45 4D002 AA02 AA19 AC04 BA03 BA14 CA01 DA05 DA12 4D004 AA36 AA46 AB03 AB07 CA08 CA09 CA28 CA34 CB09 CC01 4D021 CA07 EA10 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B07B 1/00 B09B 3/00 303H 1/28 5/00 N B09B 5/00 B01D 53/34 134A F23J 1 / 00 124Z 15/00 F23J 15/00 BF Term (reference) 3K061 NA02 NA14 3K070 DA03 DA05 DA07 DA16 DA23 DA40 DA45 4D002 AA02 AA19 AC04 BA03 BA14 CA01 DA05 DA12 4D004 AA36 AA46 AB03 AB07 CA08 CA09 CA28 CA34 CA09 CB09 CC01 CC01 4
Claims (5)
の排ガスを浄化処理する排ガス処理装置と、焼却炉から
の焼却灰に排ガス処理装置からの排ガスを接触させて焼
却灰中の重金属類を安定化させるエージング装置と、か
ら構成した事を特徴とする焼却灰処理装置。1. An incinerator for incinerating waste, an exhaust gas treatment device for purifying exhaust gas from the incinerator, and an exhaust gas from the exhaust gas treatment device in contact with incinerator ash from the incinerator, and heavy metals in the incinerator ash. An incineration ash treatment device characterized by being configured with an aging device that stabilizes various types of products.
除去する前処理装置を備えている請求項１に記載の焼却
灰処理装置。2. The incinerator ash treatment apparatus according to claim 1, further comprising a pretreatment device that removes coarse substances and metals contained in the incinerated ash from the incinerator.
シン類を除去する分級装置を備えている請求項１に記載
の焼却灰処理装置。3. The incinerator ash treatment apparatus according to claim 1, further comprising a classifier for classifying incinerated ash from the incinerator to remove dioxins.
エージング処理するバッチ式である請求項１に記載の焼
却灰処理装置。4. The incineration ash treatment apparatus according to claim 1, wherein the aging apparatus is a batch type in which the incineration ash is aged by a predetermined amount.
ージング処理する連続式である請求項１に記載の焼却灰
処理装置。5. The incineration ash treatment apparatus according to claim 1, wherein the aging apparatus is a continuous type for continuously aging incineration ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001330814A JP2003126807A (en) | 2001-10-29 | 2001-10-29 | Incineration ash treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001330814A JP2003126807A (en) | 2001-10-29 | 2001-10-29 | Incineration ash treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003126807A true JP2003126807A (en) | 2003-05-07 |
Family
ID=19146484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001330814A Pending JP2003126807A (en) | 2001-10-29 | 2001-10-29 | Incineration ash treatment device |
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| Country | Link |
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| JP (1) | JP2003126807A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012170907A (en) * | 2011-02-22 | 2012-09-10 | Osaka Gas Co Ltd | Treatment method and treatment equipment for incineration ash |
| JP2013202593A (en) * | 2012-03-29 | 2013-10-07 | Osaka Gas Co Ltd | Treatment method and treatment apparatus of incineration ash |
| JP2014176807A (en) * | 2013-03-14 | 2014-09-25 | Osaka Gas Co Ltd | Method for treating incineration ash |
| JP2015054313A (en) * | 2013-09-13 | 2015-03-23 | 大阪瓦斯株式会社 | Processing method of incineration ash and incineration apparatus |
| JP2016182560A (en) * | 2015-03-26 | 2016-10-20 | Ｊｆｅエンジニアリング株式会社 | Incineration ash treatment apparatus, waste incinerator and waste incineration method |
| KR102117304B1 (en) * | 2019-10-23 | 2020-06-01 | 충청환경에너지(주) | The fly ash processing system using the combustion gas |
| JP2021006332A (en) * | 2019-06-27 | 2021-01-21 | 株式会社フジタ | Alkaline solid reactant processing system |
-
2001
- 2001-10-29 JP JP2001330814A patent/JP2003126807A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012170907A (en) * | 2011-02-22 | 2012-09-10 | Osaka Gas Co Ltd | Treatment method and treatment equipment for incineration ash |
| JP2013202593A (en) * | 2012-03-29 | 2013-10-07 | Osaka Gas Co Ltd | Treatment method and treatment apparatus of incineration ash |
| JP2014176807A (en) * | 2013-03-14 | 2014-09-25 | Osaka Gas Co Ltd | Method for treating incineration ash |
| JP2015054313A (en) * | 2013-09-13 | 2015-03-23 | 大阪瓦斯株式会社 | Processing method of incineration ash and incineration apparatus |
| JP2016182560A (en) * | 2015-03-26 | 2016-10-20 | Ｊｆｅエンジニアリング株式会社 | Incineration ash treatment apparatus, waste incinerator and waste incineration method |
| JP2021006332A (en) * | 2019-06-27 | 2021-01-21 | 株式会社フジタ | Alkaline solid reactant processing system |
| JP7266477B2 (en) | 2019-06-27 | 2023-04-28 | 株式会社フジタ | Alkaline solid reactant treatment system |
| KR102117304B1 (en) * | 2019-10-23 | 2020-06-01 | 충청환경에너지(주) | The fly ash processing system using the combustion gas |
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