JP5818755B2 - Incineration ash storage method and incineration ash storage container used therefor - Google Patents

Incineration ash storage method and incineration ash storage container used therefor Download PDF

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JP5818755B2
JP5818755B2 JP2012184162A JP2012184162A JP5818755B2 JP 5818755 B2 JP5818755 B2 JP 5818755B2 JP 2012184162 A JP2012184162 A JP 2012184162A JP 2012184162 A JP2012184162 A JP 2012184162A JP 5818755 B2 JP5818755 B2 JP 5818755B2
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incineration ash
ash storage
storage container
opening
lid
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JP2014039914A (en
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次男 井▲崎▼
次男 井▲崎▼
武人 井▲崎▼
武人 井▲崎▼
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有限会社イザキ
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本発明は、震災や台風などの自然災害で倒壊したり、取り壊しを行った建物の瓦礫等を焼却した際に生じる重金属を含んだ焼却灰を保管するための焼却灰保管方法およびこれに用いる焼却灰保管容器に関する。   The present invention relates to an incinerated ash storage method for storing incinerated ash containing heavy metals that are generated when a building is destroyed by a natural disaster such as an earthquake disaster or a typhoon, or debris of a demolished building is incinerated, and used for the same. Related to incineration ash storage container.

従来、水銀などの重金属を含む焼却灰(以下、重金属含有焼却灰とする)は、例えば、特許文献1に開示されているようなドラム缶に重金属含有焼却灰を入れて密閉することにより保管していた。   Conventionally, incineration ash containing heavy metals such as mercury (hereinafter referred to as heavy metal-containing incineration ash) is stored, for example, by sealing the heavy metal-containing incineration ash in a drum can as disclosed in Patent Document 1. It was.

特開平8−254597号公報JP-A-8-254597

しかし、特許文献1に記載の従来技術のように、ドラム缶に重金属含有焼却灰を保管する場合、ドラム缶が金属製で錆びやすいことから、長期間安定して保管することが困難である。また、ドラム缶が錆びにより破損すると、錆びにより破損した箇所から重金属含有焼却灰から生じる有害な重金属がドラム缶外部に漏れ出すおそれがある。   However, when storing heavy metal-containing incinerated ash in a drum can as in the prior art described in Patent Document 1, it is difficult to stably store for a long time because the drum can is made of metal and easily rusts. Moreover, when a drum can is damaged by rust, harmful heavy metals generated from heavy metal-containing incinerated ash may leak out of the drum can from a portion damaged by rust.

本願発明は以上の事情に鑑みてなされたものであり、重金属含有焼却灰を安全に安定して長期間保管することができる焼却灰保管方法およびこれに用いる焼却灰保管容器を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an object thereof is to provide an incinerated ash storage method capable of safely and stably storing incinerated ash containing heavy metals for a long period of time, and an incinerated ash storage container used therefor. And

本発明の焼却灰保管方法は、内部が空洞であり、少なくとも重金属を含んだ焼却灰を保管するための焼却灰保管容器を用いた焼却灰保管方法であって、前記焼却灰保管容器は、両端部に開口を有する筒状の胴部と、前記胴部の一端側の開口を密閉するように接合される底部と、前記胴部の他端側の開口を密閉可能な蓋部と、を備え、少なくとも前記胴部および前記底部がセラミックで成形され、前記焼却灰保管容器を、蓋部が取り付けられる側の開口が開口した状態で設置する工程と、前記蓋部が取り付けられる側の開口から前記焼却灰保管容器内に重金属を含んだ焼却灰を投入する工程と、前記焼却灰保管容器の蓋部が取り付けられる側の開口を前記蓋部により密封する工程と、を備えることを特徴とする。   The incineration ash storage method of the present invention is an incineration ash storage method using an incineration ash storage container for storing incineration ash containing at least a heavy metal, and the incineration ash storage container has both ends. A cylindrical body having an opening in the part, a bottom part joined so as to seal the opening on one end side of the body part, and a lid part capable of sealing the opening on the other end side of the body part , At least the body portion and the bottom portion are formed of ceramic, and the incineration ash storage container is installed with the opening on the side to which the lid portion is attached opened, and the opening on the side to which the lid portion is attached And a step of charging incineration ash containing heavy metal into the incineration ash storage container, and a step of sealing the opening on the side to which the lid of the incineration ash storage container is attached by the lid.

また、本発明の焼却灰保管方法は、前記焼却灰保管容器が、放射線を吸収可能な成分を含有した釉薬を前記胴部の内面に塗布して乾燥させることにより形成された、放射線を吸収可能な成分を含有する第一の釉薬層と、乾燥させた前記第一の釉薬層の表面に、放射線を吸収可能な成分を含有しない釉薬を塗布することにより形成された、放射線を吸収可能な成分を含有しない第二の釉薬層と、を有するのが好ましい。   Further, the incineration ash storage method of the present invention is capable of absorbing radiation, wherein the incineration ash storage container is formed by applying a glaze containing a component capable of absorbing radiation on the inner surface of the body and drying it. A component capable of absorbing radiation, formed by applying a glaze not containing a component capable of absorbing radiation on the surface of the first glaze layer containing various components and the dried first glaze layer It is preferable to have a second glaze layer that does not contain.

また、本発明の焼却灰保管方法において、前記底部は、前記胴部の一端側の開口に挿入される挿入部と、該挿入部と連続して形成され、前記挿入部よりも外径が大きくなるように形成された鍔部とを有し、該鍔部を前記胴部の一端側の端面に当接させることにより、前記挿入部で胴部外部から前記胴部の一端側の開口を密閉する工程と、前記胴部の一端側の部位と前記底部との接触部分を密封手段により密封する工程と、を有するのが好ましい。   Further, in the incinerated ash storage method of the present invention, the bottom portion is formed continuously with the insertion portion inserted into the opening on one end side of the trunk portion, and has an outer diameter larger than that of the insertion portion. And an opening on one end side of the body portion is sealed from the outside of the body portion by the insertion portion by bringing the collar portion into contact with an end surface on one end side of the body portion. And a step of sealing a contact portion between a portion on one end side of the body portion and the bottom portion with a sealing means.

また、上記の本発明の焼却灰保管方法は、密封手段が放射線を吸収可能な成分を含有していることが好ましい。   In the incinerated ash storage method of the present invention, the sealing means preferably contains a component capable of absorbing radiation.

あるいは、本発明の焼却灰保管方法は、前記胴部の一端側は内径側へ屈曲して屈曲部をなし、前記底部は、前記胴部の一端側の開口に挿入される挿入部と、該挿入部と連続して形成され、前記挿入部よりも外径が大きく、前記胴部の内径と同径または小径の鍔部とを有し、前記屈曲部に前記鍔部を胴部内側から係合して、前記挿入部により胴部内側から前記胴部の一端側の開口を密閉するのが好ましい。   Alternatively, in the incinerated ash storage method of the present invention, one end side of the barrel portion is bent toward the inner diameter side to form a bent portion, and the bottom portion is inserted into an opening on one end side of the barrel portion; The flange portion is formed continuously with the insertion portion, has an outer diameter larger than that of the insertion portion, and has a flange portion having the same diameter as or smaller than the inner diameter of the barrel portion, and the flange portion is engaged with the bent portion from the barrel portion inner side. In addition, it is preferable that the opening on one end side of the body portion is sealed from the inside of the body portion by the insertion portion.

また、本発明の焼却灰保管方法は、前記焼却灰保管容器が、コンクリート製の建物内に保管されるのが好ましい。   In the incineration ash storage method of the present invention, the incineration ash storage container is preferably stored in a concrete building.

また、本発明の焼却灰保管方法は、前記蓋部が、前記胴部に対して着脱可能に密閉する接合手段により、前記胴部に取り付けられるのが好ましい。   In the incinerated ash storage method of the present invention, it is preferable that the lid portion is attached to the barrel portion by a joining means that is detachably sealed with respect to the barrel portion.

また、本発明の焼却灰保管方法は、前記焼却灰保管容器の内部に重金属分解微生物を含むのが好ましい。   In the incineration ash storage method of the present invention, it is preferable that heavy metal decomposing microorganisms are contained inside the incineration ash storage container.

また、本発明の焼却灰保管方法は、前記焼却灰保管容器が放射線を吸収可能な成分を含んだ蓋部で密閉されているのが好ましい。   In the incineration ash storage method of the present invention, the incineration ash storage container is preferably sealed with a lid containing a component capable of absorbing radiation.

また、本発明の焼却灰保管方法は、放射線を吸収可能な成分が鉛またはタングステンであるのが好ましい。   In the incinerated ash storage method of the present invention, the component capable of absorbing radiation is preferably lead or tungsten.

本発明の焼却灰保管容器は、内部が空洞であり、少なくとも重金属を含んだ焼却灰を保管するための焼却灰保管容器であって、該焼却灰保管容器が、両端部に開口を有する筒状の胴部と、前記胴部の一端側の開口を密閉するように接合される底部と、前記胴部の他端側の開口を密閉可能な蓋部とを備え、少なくとも前記胴部および前記底部がセラミックで成形されていることを特徴とする。   The incineration ash storage container of the present invention is an incineration ash storage container for storing incineration ash containing a hollow metal and containing at least heavy metal, the incineration ash storage container having a cylindrical shape having openings at both ends. A body part, a bottom part joined so as to seal an opening on one end side of the body part, and a lid part capable of sealing an opening on the other end side of the body part, at least the body part and the bottom part Is formed of ceramic.

また、本発明の焼却灰保管容器は、前記胴部の内面は、放射線を吸収可能な成分を含有し、前記胴部の内面に塗布して乾燥させた第一の釉薬層と、該乾燥させた前記第一の釉薬層の表面に塗布され、放射線を吸収可能な成分を含有しない第二の釉薬層とを有し、前記第一の釉薬層および第二の釉薬層を含む前記胴部の内面が焼成されているのが好ましい。   Further, the incinerated ash storage container of the present invention, the inner surface of the barrel portion contains a component capable of absorbing radiation, the first glaze layer applied to the inner surface of the barrel portion and dried, and the dried A second glaze layer that is applied to the surface of the first glaze layer and does not contain a component capable of absorbing radiation, and includes the first glaze layer and the second glaze layer. The inner surface is preferably fired.

また、本発明の焼却灰保管容器は、前記底部は、前記胴部の一端側の開口に挿入される挿入部と、該挿入部と連続して形成され、前記挿入部よりも外径が大きくなるように形成された鍔部とを有し、前記鍔部が前記胴部の一端側の端面に当接し、前記挿入部で胴部外部から前記胴部の一端側の開口が密閉され、前記胴部の一端側の部位と前記底部との接触部分が密封手段により密封されているのが好ましい。   In the incinerated ash storage container of the present invention, the bottom part is formed continuously with the insertion part inserted into the opening on one end side of the trunk part, and has an outer diameter larger than the insertion part. A flange portion formed so as to be in contact with the end surface on one end side of the barrel portion, and the insertion portion seals an opening on the one end side of the barrel portion from the outside of the barrel portion, It is preferable that a contact portion between a portion on one end side of the body portion and the bottom portion is sealed by a sealing means.

あるいは、本発明の焼却灰保管容器は、前記胴部の一端側は内径側へ屈曲して屈曲部をなし、前記底部は、前記胴部の一端側の開口に挿入される挿入部と、該挿入部と連続して形成され、前記挿入部よりも外径が大きく、前記胴部の内径と同径または小径の鍔部とを有し、前記屈曲部に前記鍔部が胴部内側から係合し、前記挿入部により胴部内側から前記胴部の一端側の開口が密閉されているのが好ましい。   Alternatively, in the incinerated ash storage container of the present invention, one end side of the barrel portion is bent toward the inner diameter side to form a bent portion, and the bottom portion is inserted into an opening on one end side of the barrel portion; The flange portion is formed continuously with the insertion portion, has an outer diameter larger than that of the insertion portion, and has a flange portion having the same diameter as or smaller than the inner diameter of the barrel portion, and the flange portion is engaged with the bent portion from the barrel portion inner side. In addition, it is preferable that an opening on one end side of the body portion is sealed from the inside of the body portion by the insertion portion.

また、本発明の焼却灰保管容器は、焼却灰保管容器の内部に焼却灰が収容されてなるのが好ましい。   Moreover, it is preferable that the incineration ash is accommodated in the incineration ash storage container of the incineration ash storage container of the present invention.

また、本発明の焼却灰保管容器は、前記蓋部が、前記胴部に対して着脱可能に密閉する接合手段により、前記胴部に取り付けられるのが好ましい。   Moreover, it is preferable that the incinerated ash storage container of this invention is attached to the said trunk | drum by the joining means with which the said cover part is detachably sealed with respect to the said trunk | drum.

本発明の焼却灰保管容器および焼却灰保管方法によれば、少なくとも胴部と底部をセラミック製とした焼却灰保管容器の内部に重金属含有焼却灰を収容して、胴部の開口を底部および蓋部で密閉することにより、焼却灰保管容器の内部に重金属含有焼却灰を安全かつ安定して閉じ込めておくことができる。また、焼却灰保管容器の胴部と底部をセラミック製とするため、焼却灰保管容器は、ドラム缶のように錆の問題が生じることがなく、これにより、ドラム缶内に重金属含有焼却灰を保存する場合よりも長期間の保管が可能になる。さらに、本発明の焼却灰保管容器は、ドラム缶のように錆びにより破損するおそれがないため、錆びにより破損した箇所から重金属含有焼却灰から生じる重金属が焼却灰保管容器の外部へ漏れ出すこともない。   According to the incineration ash storage container and the incineration ash storage method of the present invention, the incineration ash containing heavy metal is accommodated in the incineration ash storage container having at least the trunk and the bottom made of ceramic, and the opening of the trunk is covered with the bottom and the lid. By sealing at the part, the heavy metal-containing incineration ash can be safely and stably confined inside the incineration ash storage container. In addition, since the body and bottom of the incineration ash storage container are made of ceramic, the incineration ash storage container does not have the problem of rust unlike the drum can, and thereby, the heavy metal-containing incineration ash is stored in the drum can. Long-term storage is possible. Furthermore, since the incinerated ash storage container of the present invention is unlikely to be damaged by rust like a drum can, heavy metal generated from heavy metal-containing incinerated ash does not leak out of the incinerated ash storage container from the part damaged by rust. .

また、本発明にかかる焼却灰保管方法において、焼却灰保管容器の内部に重金属分解微生物を含ませるようにすると、重金属含有焼却灰中の重金属を焼却灰保管容器内で重金属分解微生物により分解できるため、焼却灰を焼却灰保管容器の内部に保管するだけにとどまらず、焼却灰中の重金属の分解も焼却灰保管容器の内部で行うことができる。   In addition, in the incineration ash storage method according to the present invention, if heavy metal decomposing microorganisms are included in the incineration ash storage container, heavy metals in the incineration ash containing heavy metals can be decomposed by the heavy metal decomposition microorganisms in the incineration ash storage container. In addition, the incineration ash is not only stored in the incineration ash storage container, but the heavy metals in the incineration ash can be decomposed in the incineration ash storage container.

本発明にかかる焼却灰保管方法において、焼却灰保管容器を鉛製の蓋部で密封する場合、焼却灰中に万が一放射性物質が含まれていたとしても、この放射性物質の放射能が焼却灰保管容器の内部から外部へ漏れるのを確実に抑えることができる。   In the incineration ash storage method according to the present invention, when the incineration ash storage container is sealed with a lead lid, even if radioactive material is included in the incineration ash, the radioactivity of this radioactive material is stored in the incineration ash It is possible to reliably suppress leakage from the inside of the container to the outside.

(a)は、本発明の焼却灰保管方法に使用する焼却灰保管容器を示す斜視図であり、(b)は(a)の胴部の内面の部分拡大部である。(A) is a perspective view which shows the incineration ash storage container used for the incineration ash storage method of this invention, (b) is the partial expansion part of the inner surface of the trunk | drum of (a). 図1(a)に示す焼却灰保管容器を用いて焼却灰の保管を行う方法を説明するためのもので、焼却灰保管容器の胴部の一端側の開口を底部で閉じる工程を説明する概略図である。It is for demonstrating the method of storing incineration ash using the incineration ash storage container shown to Fig.1 (a), and is the outline explaining the process of closing the opening of the one end side of the trunk | drum part of an incineration ash storage container at a bottom part. FIG. 図1(a)に示す焼却灰保管容器を用いて焼却灰の保管を行う方法を説明するためのもので、胴部の一端側の開口を底部で密閉した状態を示す部分拡大断面図である。It is for demonstrating the method of storing incineration ash using the incineration ash storage container shown to Fig.1 (a), and is the elements on larger scale which show the state which sealed the opening of the one end side of a trunk | drum at the bottom part. . 図2(b)の円枠X部分の拡大図である。It is an enlarged view of the circle frame X part of FIG.2 (b). 図1に示す焼却灰保管容器を用いて焼却灰の保管を行う方法を説明するためのもので、図2に示す工程後、焼却灰保管容器の内部に焼却灰を収容する工程を説明する概略図である。It is for demonstrating the method of storing incineration ash using the incineration ash storage container shown in FIG. 1, and is the outline explaining the process of accommodating incineration ash inside the incineration ash storage container after the process shown in FIG. FIG. 図1に示す焼却灰保管容器を用いて焼却灰の保管を行う方法を説明するためのもので、図3に示す工程後、焼却灰保管容器の他端側の開口を閉じる工程を説明する概略図である。It is for demonstrating the method of storing incineration ash using the incineration ash storage container shown in FIG. 1, and the outline explaining the process of closing the opening of the other end side of an incineration ash storage container after the process shown in FIG. FIG. 図1に示す焼却灰保管容器を用いて焼却灰の保管を行う方法を説明するためのもので、図4に示す工程後に密閉が完了した焼却灰保管容器を示す概略図である。FIG. 5 is a schematic diagram illustrating an incineration ash storage container in which sealing is completed after the step illustrated in FIG. 4, for explaining a method for storing the incineration ash using the incineration ash storage container illustrated in FIG. 1. 本発明の別の実施形態を示すもので、胴部の他端側の開口を蓋部で密閉した状態を示す部分拡大断面図である。FIG. 5 is a partial enlarged cross-sectional view showing another embodiment of the present invention and showing a state where an opening on the other end side of the body portion is sealed with a lid portion. 本発明の別の実施形態を示すもので、胴部の一端側の開口を底部で密閉した状態を示す部分拡大断面図である。FIG. 5 is a partially enlarged cross-sectional view showing another embodiment of the present invention and showing a state in which an opening on one end side of a body portion is sealed with a bottom portion.

以下に、本発明の実施の形態について、図1(a)〜図7を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to FIGS.

図1に本発明の焼却灰保管方法に使用する焼却灰保管容器を示す。焼却灰保管容器1は、建物の瓦礫等を焼却した後に生じる少なくとも重金属を含む焼却灰(重金属含有焼却灰)を保管するためのもので、内部が空洞である。この焼却灰保管容器1は、両端部に開口2A、2Bを有する円筒状の胴部3が本体をなし、胴部3の一端側(図1の左側)の開口2Aは、後で詳述する底部4(図5参照)が接合されて密閉され、胴部3の他端側(図1の右側)の開口2Bは、後で詳述する蓋部5(図5参照)により密閉される。   FIG. 1 shows an incineration ash storage container used in the incineration ash storage method of the present invention. The incineration ash storage container 1 is for storing incineration ash containing at least heavy metal (heavy metal-containing incineration ash) generated after incineration of building debris and the like, and the inside is hollow. In this incinerated ash storage container 1, a cylindrical body 3 having openings 2A and 2B at both ends constitutes a main body, and an opening 2A on one end side (left side in FIG. 1) of the body 3 will be described in detail later. The bottom 4 (see FIG. 5) is joined and sealed, and the opening 2B on the other end side (the right side in FIG. 1) of the body 3 is sealed by a lid 5 (see FIG. 5) described in detail later.

焼却灰保管容器1の胴部3は、炭化ケイ素(SiC)やアルミナ(Al23)などのセラミック(陶磁器)で成形されており、成形方法としては、射出成形や押出し成形などの種々の成形方法を採用できる。 The body 3 of the incinerated ash storage container 1 is formed of ceramic (ceramics) such as silicon carbide (SiC) or alumina (Al 2 O 3 ). Various molding methods such as injection molding and extrusion molding are used. A molding method can be adopted.

焼却灰保管容器1は、胴部3の軸方向の長さL1が0.8〜2.6m、胴部3の内部の空洞の最小幅L2が0.5〜1.0m、胴部3の厚みL3が10〜100mmである。本実施形態では、胴部3は円筒状であるため、胴部3の内部の空洞の最小幅L2は、焼却灰保管容器1の胴部3の内径寸法と等しく、この長さは、胴部3の軸方向の長さ(L1)の方向において一定である。   The incinerated ash storage container 1 has an axial length L1 of the body 3 of 0.8 to 2.6 m, a minimum width L2 of the cavity inside the body 3 of 0.5 to 1.0 m, The thickness L3 is 10 to 100 mm. In the present embodiment, since the body part 3 is cylindrical, the minimum width L2 of the cavity inside the body part 3 is equal to the inner diameter dimension of the body part 3 of the incinerated ash storage container 1, and this length is the body part. 3 is constant in the direction of the axial length (L1).

また、胴部3の内面には、図1(b)に示すように、放射線を吸収可能な成分である鉛を含有し、胴部3の内面に塗布して乾燥させた第一の釉薬層Y1と、乾燥させた第一の釉薬層Y1の表面に塗布された、放射線を吸収可能な成分を含有しない第二の釉薬層Y2とを有する。ここで、第一の釉薬層Y1は、釉薬基材に放射線を吸収可能な成分を含有させたものが使用され、第二の釉薬層Y2は、釉薬基材に放射線を吸収可能な成分を含有させないものが使用される。第一および第二の釉薬層Y1、Y2は、釉薬の主要構成部が焼成後にガラス化する釉薬基材を用いることができ、この釉薬基材としては最初からガラス化しているフリット(フリット釉)を用いてもよいし、焼成によってガラス化する生原料(生釉)を用いてもよい。生原料としては、たとえば、珪砂、アルミナ、粘土類、長石類、石灰類、ウォラストナイト、亜鉛華、ドロマイトなどを用いることができる。第一および第二の釉薬層Y1、Y2は、胴部3の内面は、釉薬の層Y1、Y2と共に胴部3の製造工程で焼かれる。このように、放射線を吸収可能な成分を含有する第一の釉薬層Y1を、放射線を吸収可能な成分を含有しない第二の釉薬層Y2と胴部3の内面との間に介在させて胴部3を焼くことにより、胴部3を焼く際の熱で放射線を吸収可能な成分が第一の釉薬層Y1から溶け出してしまうという事態が生じにくくなり、胴部3の内部、つまり焼却灰保管容器1の内部に放射線を吸収可能な成分を閉じ込めておくことができる。そのため、焼却灰保管容器1の内部に保管する重金属含有焼却灰中に放射性物質を含んでいたとしても、放射線が焼却灰保管容器1の外部に漏れ出るのを防止できる。なお、放射線を吸収可能な成分としては、本実施形態の鉛に限らず、タングステンなども使用でき、放射線を吸収可能な成分であり、釉薬に含有して塗布できるものであれば、特に限定されるものではない。   Moreover, as shown in FIG.1 (b), the inner surface of the trunk | drum 3 contains the lead which is a component which can absorb a radiation, applied to the inner surface of the trunk | drum 3, and dried, the 1st glaze layer Y1 and a second glaze layer Y2 which is applied to the surface of the dried first glaze layer Y1 and does not contain a component capable of absorbing radiation. Here, the first glaze layer Y1 uses a glaze base material containing a component capable of absorbing radiation, and the second glaze layer Y2 contains a glaze base material containing a component capable of absorbing radiation. What is not allowed to be used. For the first and second glaze layers Y1 and Y2, a glaze base material in which the main component of the glaze vitrifies after firing can be used. As the glaze base material, a frit that has been vitrified from the beginning (frit glaze) May be used, or a raw material (ginger) that is vitrified by firing may be used. As raw materials, for example, silica sand, alumina, clays, feldspars, limes, wollastonite, zinc white, dolomite and the like can be used. As for the 1st and 2nd glaze layers Y1 and Y2, the inner surface of the trunk | drum 3 is baked in the manufacturing process of the trunk | drum 3 with the glaze layers Y1 and Y2. In this manner, the first glaze layer Y1 containing a component capable of absorbing radiation is interposed between the second glaze layer Y2 not containing a component capable of absorbing radiation and the inner surface of the trunk portion 3. By burning the portion 3, it becomes difficult to cause a situation in which a component capable of absorbing radiation by the heat at the time of burning the barrel portion 3 is melted out from the first glaze layer Y1, and the inside of the barrel portion 3, that is, incineration ash A component capable of absorbing radiation can be confined inside the storage container 1. Therefore, even if the heavy metal-containing incineration ash stored inside the incineration ash storage container 1 contains a radioactive substance, radiation can be prevented from leaking out of the incineration ash storage container 1. The component capable of absorbing radiation is not limited to the lead of the present embodiment, but tungsten can also be used and is particularly limited as long as it is a component that can absorb radiation and can be applied in glaze. It is not something.

次に、焼却灰保管容器1を用いて重金属含有焼却灰を保管する方法について説明する。なお、ここでいう「重金属」は、カドミウムおよびその化合物、シアン化合物、水銀およびアルキル水銀その他の水銀化合物などを意味する。   Next, a method for storing heavy metal-containing incineration ash using the incineration ash storage container 1 will be described. Here, “heavy metal” means cadmium and its compounds, cyanide, mercury, alkyl mercury and other mercury compounds.

まず、図2(a)に示すように、焼却灰保管容器1の一端側の端面に、底部4を矢印Aで示すように取り付け(接合し)て、焼却灰保管容器1の一端側の開口2Aを閉じる(ステップ1)。底部4は、その外径が、胴部3の内径とほぼ同径または胴部3の内径よりも小さい円柱状の挿入部4aと、挿入部4aよりも外径が大きく、胴部3の外径とほぼ同径の鍔部4bとを有する。また、図示は省略するが、挿入部4aの横断面は円形であり、鍔部4bの横断面も円形である。図2(a)および図2(b)に示すように、底部4を矢印Aで示すように胴部3外部から胴部3の一端側の開口2Aに挿入して、底部4の鍔部4bのうち、挿入部4aよりも径が大きい部分を胴部3の一端側の端面に当接させる。これにより、胴部3の一端側の開口2Aを密閉することができる。   First, as shown to Fig.2 (a), the bottom part 4 is attached to the end surface of the one end side of the incineration ash storage container 1 as shown by the arrow A, and the opening of the one end side of the incineration ash storage container 1 is opened. 2A is closed (step 1). The bottom part 4 has a cylindrical insertion part 4a whose outer diameter is substantially the same as or smaller than the inner diameter of the body part 3, and an outer diameter larger than that of the insertion part 4a. It has a flange 4b having the same diameter as the diameter. Moreover, although illustration is abbreviate | omitted, the cross section of the insertion part 4a is circular, and the cross section of the collar part 4b is also circular. 2 (a) and 2 (b), the bottom 4 is inserted into the opening 2A on the one end side of the barrel 3 from the outside of the barrel 3 as indicated by an arrow A, and the flange 4b of the bottom 4 is inserted. Among them, a portion having a diameter larger than that of the insertion portion 4 a is brought into contact with an end surface on one end side of the body portion 3. Thereby, the opening 2A on one end side of the trunk portion 3 can be sealed.

底部4の挿入部4aの外径は、胴部3の内径と等しいか、胴部3の内径よりも小さくなるように構成している。また、底部4で胴部3の一端側の開口を確実に密閉できるように、底部4において胴部3に挿入される部位の外径を、胴部3の内径と同じか大きくすることもできる。また、底部4と胴部3との境界部分に密封手段としての接着剤層を介在させることにより、図2(b)の円枠X部分の拡大図である図2(c)に示すように、胴部3の一端側の部位と底部4(挿入部4a、鍔部4b)との接触部分を接着剤Adにより密封している。また、接着剤Adには、放射線を吸収する成分(例えば、鉛やタングステン)を含有させることができる。このようにすれば、焼却灰保管容器内に投入する重金属含有焼却灰が放射性物質を含んでいたとしても、放射性物質からの放射線が外部に漏れ出すのを確実に防止することができる。なお、密封手段は、本実施形態のような接着剤に限られず、胴部3と底部4を溶着する際に生じる溶着層などであってもよく、特に限定されることはない。   The outer diameter of the insertion part 4 a of the bottom part 4 is configured to be equal to or smaller than the inner diameter of the body part 3. Moreover, the outer diameter of the part inserted into the trunk part 3 in the bottom part 4 can be made equal to or larger than the inner diameter of the trunk part 3 so that the opening on one end side of the trunk part 3 can be reliably sealed at the bottom part 4. . Further, by interposing an adhesive layer as a sealing means at the boundary portion between the bottom portion 4 and the body portion 3, as shown in FIG. 2C, which is an enlarged view of the circular frame X portion in FIG. The contact part between the part on one end side of the body part 3 and the bottom part 4 (insertion part 4a, flange part 4b) is sealed with an adhesive Ad. The adhesive Ad can contain a component that absorbs radiation (for example, lead or tungsten). If it does in this way, even if the heavy metal containing incineration ash thrown in in the incineration ash storage container contains the radioactive substance, it can prevent reliably that the radiation from a radioactive substance leaks outside. The sealing means is not limited to the adhesive as in the present embodiment, and may be a welding layer or the like generated when the body 3 and the bottom 4 are welded, and is not particularly limited.

底部4の素材は、胴部3と同様にセラミックで成形している。そのため、底部4に錆などが生じることがなくなり、底部4をセラミック以外の素材にする場合よりも、重金属含有焼却灰を長期間焼却灰保管容器1の内部に保管することができ、焼却灰保管容器1の外部へ重金属含有焼却灰から生じる重金属が漏れ出すのを確実に防止できる。なお、底部4の胴部3への取り付け方法は特に限定されることがなく、ボルト締めや接着、融接あるいは金具などの別部材による固定など、任意の手段を採用することができる。例えば、挿入部4aよりも径が大きい部分を胴部3の一端側の端面との接着剤Adによる接触部分をボルトで固定するようにするのが好ましい。   The material of the bottom part 4 is formed of ceramic in the same manner as the body part 3. Therefore, rust and the like are not generated in the bottom portion 4, and the heavy metal-containing incineration ash can be stored in the incineration ash storage container 1 for a long period of time, compared with the case where the bottom portion 4 is made of a material other than ceramic. It is possible to reliably prevent the heavy metal generated from the heavy metal-containing incinerated ash from leaking out of the container 1. In addition, the attachment method to the trunk | drum 3 of the bottom part 4 is not specifically limited, Arbitrary means, such as bolting, adhesion | attachment, fusion welding, or fixation by another members, such as a metal fitting, are employable. For example, it is preferable that the contact portion by the adhesive Ad with the end surface on the one end side of the body portion 3 is fixed by a bolt with a portion having a larger diameter than the insertion portion 4a.

次に、図3に示すように、胴部3の後述する蓋部5(図5参照)が取り付けられる側(他端側)の開口2Bを開口させた状態で、かつ底部4が地面Gに接触するようにして焼却灰保管容器1を地面Gに設置し、焼却灰保管容器1の胴部3の開口2Bから焼却灰保管容器1内に重金属含有焼却灰を矢印Bで示すように収容させる(ステップ2)。   Next, as shown in FIG. 3, with the opening 2 </ b> B on the side (the other end side) to which a lid 5 (see FIG. 5), which will be described later, of the trunk portion 3 is attached opened, the bottom 4 is on the ground G. The incineration ash storage container 1 is placed on the ground G so as to come into contact, and the heavy metal-containing incineration ash is accommodated in the incineration ash storage container 1 through the opening 2B of the trunk 3 of the incineration ash storage container 1 as indicated by the arrow B. (Step 2).

次に、図4に示すように、焼却灰保管容器1の胴部3の開口2Bに円盤状の蓋部5を矢印Cで示すように取り付けて、焼却灰保管容器1の開口2Bを閉じ(ステップ3)、図5に示すように焼却灰保管容器1を完全に密閉する(ステップ4)。蓋部5は、焼却灰保管容器1の胴部3の開口2Bを確実に閉じることができるように、焼却灰保管容器1の胴部3の開口2B側の端面と形状および大きさが一致するようにしている。また、蓋部5の素材は特に限定されることはないが、焼却灰保管容器1の胴部6と同様にセラミックで成形すると、錆などが生じることがないため、蓋部5をセラミック以外の素材にする場合よりも、重金属含有焼却灰を長期間焼却灰保管容器1の内部に保管することができる。さらに、重金属含有焼却灰から生じる重金属が焼却灰保管容器1の外部へ漏れ出すのを防止するのに貢献する。なお、蓋部5の焼却灰保管容器1への取り付け方法は特に限定されることがなく、ボルト締めや接着、融接、あるいは金具などの別部材による固定など、任意の手段を採用することができる。   Next, as shown in FIG. 4, a disc-shaped lid 5 is attached to the opening 2B of the trunk 3 of the incineration ash storage container 1 as shown by the arrow C, and the opening 2B of the incineration ash storage container 1 is closed ( Step 3) The incineration ash storage container 1 is completely sealed as shown in FIG. 5 (Step 4). The lid 5 has the same shape and size as the end face on the opening 2B side of the trunk 3 of the incineration ash storage container 1 so that the opening 2B of the trunk 3 of the incineration ash storage container 1 can be reliably closed. I am doing so. Moreover, although the raw material of the cover part 5 is not specifically limited, since it will not produce rust etc. if it shape | molds with ceramic similarly to the trunk | drum 6 of the incineration ash storage container 1, the cover part 5 is made of other than ceramic. The heavy metal-containing incineration ash can be stored in the incineration ash storage container 1 for a long period of time, compared to the case where the material is used. Furthermore, it contributes to preventing heavy metals generated from heavy metal-containing incineration ash from leaking out of the incineration ash storage container 1. In addition, the attachment method to the incineration ash storage container 1 of the cover part 5 is not specifically limited, Arbitrary means, such as bolting, adhesion | attachment, fusion welding, or fixation by another members, such as metal fittings, are employable. it can.

本発明の実施の形態によれば、少なくとも胴部3と底部4をセラミック製とした焼却灰保管容器1の内部に重金属含有焼却灰を収容させて焼却灰保管容器1を2つの部材(底部4、蓋部5)で密閉するため、焼却灰保管容器1の内部に重金属含有焼却灰を確実に閉じ込めておくことができ、焼却灰保管容器1の外部に重金属が漏れ出すことを防止することができる。また、焼却灰保管容器1の胴部3と底部4をセラミック製とするため、焼却灰保管容器1は、従来において重金属含有焼却灰の保管に使用していたドラム缶のように錆の問題が生じることがなく、ドラム缶内に重金属含有焼却灰を保存する場合よりも長期間の保管が可能になる。また、蓋部5を着脱可能に密閉する接合手段により容器を密閉した場合は、重金属含有焼却灰中の重金属が焼却灰保管容器1の外部に漏れ出すことを防止することができるとともに、将来、重金属を効率的に処理する方法が見つかった場合に、容易に焼却灰保管容器1中の焼却灰を移し変えることができる。なお、接合手段としては、たとえば、蓋部5に雄ネジを形成し、胴部3の内面に雌ネジを形成し、パッキンなどのシール部材を介して蓋部5と胴部3とを螺合するようにしてもよい。   According to the embodiment of the present invention, the incinerated ash containing the heavy metal is accommodated in the incinerated ash storage container 1 in which at least the body part 3 and the bottom part 4 are made of ceramic, so that the incinerated ash storage container 1 has two members (the bottom part 4). Since the lid 5) is sealed, the incinerated ash containing the heavy metal can be reliably confined inside the incinerated ash storage container 1, and the heavy metal can be prevented from leaking outside the incinerated ash storage container 1. it can. Moreover, since the trunk | drum 3 and the bottom part 4 of the incineration ash storage container 1 are made from a ceramic, the incineration ash storage container 1 produces the problem of rust like the drum can conventionally used for storage of heavy metal containing incineration ash. Therefore, it can be stored for a longer period than when the heavy metal-containing incinerated ash is stored in the drum. In addition, when the container is sealed with the joining means for detachably sealing the lid 5, heavy metal in the heavy metal-containing incinerated ash can be prevented from leaking outside the incinerated ash storage container 1, When a method for efficiently treating heavy metals is found, the incineration ash in the incineration ash storage container 1 can be easily transferred. As the joining means, for example, a male screw is formed on the lid 5, a female screw is formed on the inner surface of the barrel 3, and the lid 5 and the barrel 3 are screwed together via a seal member such as packing. You may make it do.

以上の通り、本実施形態にかかる焼却灰保管容器1を用いた焼却灰保管方法によれば、重金属含有焼却灰を安全に安定して長期間確実に保管することができると共に、重金属含有焼却灰を処理する必要が生じるまで、安全に保管することができる。つまり、本実施形態にかかる焼却灰保管容器1を用いた焼却灰保管方法は、従来のようにドラム缶に重金属含有焼却灰を保管する方法にはない複数の優れた効果を奏する。   As described above, according to the incineration ash storage method using the incineration ash storage container 1 according to the present embodiment, the heavy metal-containing incineration ash can be safely and stably stored for a long period of time, and the heavy metal-containing incineration ash Can be stored safely until it needs to be processed. That is, the incineration ash storage method using the incineration ash storage container 1 according to the present embodiment has a plurality of excellent effects not found in the conventional method of storing heavy metal-containing incineration ash in a drum can.

上記した本実施形態の焼却灰保管容器1は、焼却灰保管容器1の内部に収容する重金属含有焼却灰の重金属が外部へ漏れ出した時に備えて、コンクリートの建物内に保管されるのが好ましい。コンクリートは遮断性に優れているため、焼却灰保管容器1を保管するのに適している。   The incineration ash storage container 1 of the above-described embodiment is preferably stored in a concrete building in preparation for heavy metal containing incineration ash contained in the incineration ash storage container 1 leaking to the outside. . Since concrete has excellent barrier properties, it is suitable for storing the incinerated ash storage container 1.

焼却灰保管容器1の内部には、重金属含有焼却灰と共に、重金属分解微生物を含ませることも可能である。この場合、焼却灰中の重金属を焼却灰保管容器1内で重金属分解微生物により分解できるため、重金属含有焼却灰を保管するだけにとどまらず、重金属含有焼却灰中の重金属の分解も行うことができる。そのため、重金属分解微生物により焼却灰保管容器1内の焼却灰中の重金属を分解した後に焼却灰を焼却灰保管容器1から取り出して焼却灰保管容器1を再利用することができる。重金属分解微生物としては、例えば、出芽酵母や微細緑藻などを利用することができる。また、焼却灰保管容器1の内部には、重金属分解微生物に代えて、あるいは重金属分解微生物と共に重金属分解酵素を収容することも可能である。   The inside of the incineration ash storage container 1 can contain heavy metal-decomposing microorganisms along with heavy metal-containing incineration ash. In this case, since heavy metals in the incineration ash can be decomposed by the heavy metal decomposing microorganisms in the incineration ash storage container 1, not only the heavy metal-containing incineration ash is stored, but also heavy metals in the heavy metal-containing incineration ash can be decomposed. . Therefore, after decomposing heavy metal in the incineration ash in the incineration ash storage container 1 by the heavy metal decomposing microorganism, the incineration ash can be taken out from the incineration ash storage container 1 and the incineration ash storage container 1 can be reused. As the heavy metal decomposing microorganism, for example, budding yeast or fine green algae can be used. Moreover, it is also possible to store a heavy metal decomposing enzyme in the incinerated ash storage container 1 in place of the heavy metal decomposing microorganism or together with the heavy metal decomposing microorganism.

また、重金属含有焼却灰が放射性物質を含んでいる場合、焼却灰保管容器1の開口2A、2Bを閉じる底部4、蓋部5に放射線を吸収可能な成分(鉛、タングステンなど)を含ませるのが望ましい。その結果、重金属含有焼却灰中の放射性物質の放射能が焼却灰保管容器1の内部から外部へ漏れるのを、開口2A、2Bを閉じる部材(底部4、蓋部5)で確実に抑えることができる。   If the heavy metal-containing incineration ash contains a radioactive substance, the bottom part 4 and the lid part 5 that close the openings 2A and 2B of the incineration ash storage container 1 may contain components that can absorb radiation (such as lead and tungsten). Is desirable. As a result, it is possible to reliably suppress the radioactivity of the radioactive material in the heavy metal-containing incineration ash from leaking from the inside of the incineration ash storage container 1 to the outside with the members (bottom portion 4 and lid portion 5) that close the openings 2A and 2B. it can.

蓋部5で胴部3の開口2Bを密閉する構造は、図5に示す構造に限られず、例えば図6に示す構造にすることもできる。なお、この実施形態において、図1〜図5に示す部位と同じ部位、機能、形状を示す部位については、重複する説明を省略する。   The structure for sealing the opening 2 </ b> B of the body 3 with the lid 5 is not limited to the structure shown in FIG. 5, and may be the structure shown in FIG. 6, for example. In addition, in this embodiment, the overlapping description is abbreviate | omitted about the site | part which shows the same site | part, function, and shape as the site | part shown in FIGS.

図6に示すように、胴部3の他端側は、外径側へ屈曲する拡径部3bと、拡径部3bから胴部3が伸びる方向と同方向に伸びる円筒部3cとを含む形状をなしている。蓋部5は、その外径が、胴部3の内径とほぼ同径または小さい円柱状の差込み部5aと、差込み部5aよりも外径が大きく、胴部3の円筒部3cの内径よりも小さい径を有する蓋鍔5bとを有する。図示は省略するが、差込み部5a、蓋鍔5bの横断面は円形であり、蓋部5は、底部4と同様の形状を呈している。胴部3の外側から、蓋部5の差込み部5aを胴部3の開口2Bへ挿入し、胴部3の拡径部3bの上端面(図6中、上側の端面)に蓋鍔5bを胴部3の外側から係合させると共に、差込み部5aにより胴部3の外側から胴部3の他端側の開口2Bを密封する。なお、蓋部5を胴部3に取り付ける場合は、底部4と胴部3との取り付け時と同様に、放射線を吸収する成分を含有した接着剤を用いてもよい。   As shown in FIG. 6, the other end side of the body portion 3 includes an enlarged diameter portion 3 b that is bent toward the outer diameter side, and a cylindrical portion 3 c that extends in the same direction as the direction in which the body portion 3 extends from the enlarged diameter portion 3 b. It has a shape. The lid portion 5 has an outer diameter that is substantially the same as or smaller than the inner diameter of the body portion 3 and a cylindrical insertion portion 5 a that is larger in outer diameter than the insertion portion 5 a and larger than the inner diameter of the cylindrical portion 3 c of the body portion 3. And a lid 5b having a small diameter. Although illustration is omitted, the cross section of the insertion portion 5a and the lid 5b is circular, and the lid 5 has the same shape as the bottom 4. The insertion part 5a of the lid part 5 is inserted into the opening 2B of the trunk part 3 from the outside of the trunk part 3, and the lid 5b is attached to the upper end surface (the upper end face in FIG. 6) of the enlarged diameter part 3b of the trunk part 3. While engaging from the outer side of the trunk | drum 3, the opening 2B of the other end side of the trunk | drum 3 is sealed from the outer side of the trunk | drum 3 with the insertion part 5a. In addition, when attaching the cover part 5 to the trunk | drum 3, you may use the adhesive agent containing the component which absorbs a radiation similarly to the time of attachment of the bottom part 4 and the trunk | drum 3.

また、底部4で胴部3の開口2Aを密閉する構造は、図2(b)に示す構造に限られず、例えば図7に示す構造にすることもできる。なお、以下の説明では、図2(b)に示す部位と同じ部位、機能、形状を示す部位については、重複する説明を省略する。   Further, the structure for sealing the opening 2A of the trunk portion 3 with the bottom portion 4 is not limited to the structure shown in FIG. 2B, and may be the structure shown in FIG. 7, for example. In the following description, overlapping description is omitted for the same parts, functions, and shapes as those shown in FIG.

図7に示すように、胴部3の一端側が内径側へ屈曲して屈曲部3aをなす。底部4は、その外径が、屈曲部3aの内径とほぼ同径または屈曲部3aの内径よりも小さい円柱状の挿入部4eと、挿入部4eよりも外径が大きく、胴部3の内径とほぼ同径または小さい径を有する鍔部4fとを有する。図示は省略するが、挿入部4eの横断面は円形であり、鍔部4fの横断面は円形である。胴部3の内側から、挿入部4eを胴部2Aの開口へ挿入し、胴部3の屈曲部3aの上端面(図6中、上側の端面)に鍔部4fを胴部3の内側から係合させると共に、挿入部4eにより胴部3の内側から胴部3の一端側の開口2Aを密封する。   As shown in FIG. 7, one end side of the body portion 3 is bent toward the inner diameter side to form a bent portion 3a. The bottom portion 4 has a cylindrical insertion portion 4e whose outer diameter is substantially the same as the inner diameter of the bent portion 3a or smaller than the inner diameter of the bent portion 3a, and an outer diameter larger than that of the inserted portion 4e. And a flange portion 4f having substantially the same diameter or a small diameter. Although illustration is omitted, the cross section of the insertion portion 4e is circular, and the cross section of the flange portion 4f is circular. The insertion part 4e is inserted into the opening of the body part 2A from the inside of the body part 3, and the flange part 4f is inserted from the inside of the body part 3 to the upper end surface (the upper end surface in FIG. 6) of the bending part 3a of the body part 3. At the same time, the opening 2A on one end side of the body 3 is sealed from the inside of the body 3 by the insertion portion 4e.

このような構成の場合、胴部3の内部に重金属含有焼却灰を収容させた際に、底部4に重量がかかって、底部4が胴部3から外れようとしても、鍔部4fが胴部3の屈曲部3aに引っ掛かるため、胴部3から底部4が外れるのを確実に防止できる。   In the case of such a configuration, when the heavy metal-containing incinerated ash is accommodated in the body part 3, even if the bottom part 4 is heavy and the bottom part 4 tends to come off from the body part 3, the flange part 4f is Therefore, it is possible to reliably prevent the bottom portion 4 from coming off from the body portion 3.

以上、本発明の実施の形態について説明したが、本発明は、ここで挙げた実施形態に限られるものではない。例えば、ここで挙げた実施形態では、焼却灰保管容器の胴部を円筒状としているが、焼却灰保管容器の胴部は円筒状に限られず、内部が空洞の直方体形状であってもよい。   As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned here. For example, in the embodiment mentioned here, the trunk portion of the incineration ash storage container is cylindrical, but the trunk portion of the incineration ash storage container is not limited to a cylindrical shape, and may be a rectangular parallelepiped shape having a hollow inside.

1 焼却灰保管容器
2A 開口
2B 開口
3 胴部
3a 屈曲部
3b 拡径部
3c 円筒部
4 底部
4a、4e 挿入部
4b、4f 鍔部
5 蓋部
5a 差込み部
5b 蓋鍔
L1 胴部の軸方向長さ
L2 胴部の内部の空洞の最小幅
L3 胴部厚み
Ad 接着剤
Y1 第一の釉薬層
Y2 第二の釉薬層
DESCRIPTION OF SYMBOLS 1 Incinerated ash storage container 2A Opening 2B Opening 3 Trunk part 3a Bending part 3b Expanding part 3c Cylindrical part 4 Bottom part 4a, 4e Insertion part 4b, 4f Lid part 5 Lid part 5a Insertion part 5b Lid L1 Axial length of trunk part L2 Minimum cavity width L3 inside the body part Body thickness Th Ad Adhesive Y1 First glaze layer Y2 Second glaze layer

Claims (12)

内部が空洞であり、少なくとも重金属を含んだ焼却灰を保管するための焼却灰保管容器を用いた焼却灰保管方法であって、前記焼却灰保管容器は、
両端部に開口を有する筒状の胴部と、
前記胴部の一端側の開口を密閉するように接合される底部と、前記胴部の他端側の開口を密閉可能な蓋部と、
を備え、
前記焼却灰は、放射性物質を含有し、
放射線を吸収可能な成分を含有した釉薬を前記胴部の内面に塗布して乾燥させることにより形成された、放射線を吸収可能な成分を含有する第一の釉薬層と、
乾燥させた前記第一の釉薬層の表面に、放射線を吸収可能な成分を含有しない釉薬を塗布することにより形成された、放射線を吸収可能な成分を含有しない第二の釉薬層と、
を有し、
少なくとも前記胴部および前記底部がセラミックで成形され、
前記焼却灰保管容器を、蓋部が取り付けられる側の開口が開口した状態で設置する工程と、
前記蓋部が取り付けられる側の開口から前記焼却灰保管容器内に重金属を含んだ焼却灰を投入する工程と、
前記焼却灰保管容器の蓋部が取り付けられる側の開口を前記蓋部により密封する工程と、
を備え
前記底部は、前記胴部の一端側の開口に挿入される挿入部と、該挿入部と連続して形成され、前記挿入部よりも外径が大きくなるように形成された鍔部とを有し、
該鍔部を前記胴部の一端側の端面に当接させることにより、前記挿入部で胴部外部から前記胴部の一端側の開口を密閉する工程と、
前記胴部の一端側の部位と前記底部との接触部分を密封手段により密封する工程と、
を有し、
前記密封手段が放射線を吸収可能な成分を含有していることを特徴とする焼却灰保管方法。
An incineration ash storage method using an incineration ash storage container for storing incineration ash containing a hollow metal and containing at least heavy metal, the incineration ash storage container,
A cylindrical trunk having openings at both ends;
A bottom part joined so as to seal the opening on one end side of the trunk part, a lid part capable of sealing the opening on the other end side of the trunk part,
With
The incineration ash contains a radioactive substance,
A first glaze layer containing a component capable of absorbing radiation, formed by applying a glaze containing a component capable of absorbing radiation on the inner surface of the barrel and drying;
A second glaze layer not containing a component capable of absorbing radiation, formed by applying a glaze not containing a component capable of absorbing radiation on the surface of the dried first glaze layer;
Have
At least the body and the bottom are formed of ceramic;
Installing the incineration ash storage container in a state where the opening on the side to which the lid is attached is opened; and
Introducing incineration ash containing heavy metal into the incineration ash storage container from the opening on the side where the lid is attached;
Sealing the opening on the side to which the lid portion of the incinerated ash storage container is attached with the lid portion;
Equipped with a,
The bottom portion includes an insertion portion that is inserted into the opening on one end side of the body portion, and a flange portion that is formed continuously with the insertion portion and has an outer diameter larger than that of the insertion portion. And
Sealing the opening on the one end side of the body portion from the outside of the body portion with the insertion portion by bringing the flange portion into contact with the end surface on the one end side of the body portion;
Sealing a contact portion between a portion on one end side of the body portion and the bottom portion by a sealing means;
Have
The incinerated ash storage method, wherein the sealing means contains a component capable of absorbing radiation .
内部が空洞であり、少なくとも重金属を含んだ焼却灰を保管するための焼却灰保管容器を用いた焼却灰保管方法であって、前記焼却灰保管容器は、
両端部に開口を有する筒状の胴部と、
前記胴部の一端側の開口を密閉するように接合される底部と、前記胴部の他端側の開口を密閉可能な蓋部と、
を備え、
前記焼却灰は、放射性物質を含有し、
少なくとも前記胴部および前記底部がセラミックで成形され、
前記焼却灰保管容器を、蓋部が取り付けられる側の開口が開口した状態で設置する工程と、
前記蓋部が取り付けられる側の開口から前記焼却灰保管容器内に重金属を含んだ焼却灰を投入する工程と、
前記焼却灰保管容器の蓋部が取り付けられる側の開口を前記蓋部により密封する工程と、
を備え、
前記焼却灰保管容器が、放射線を吸収可能な成分を含有した釉薬を前記胴部の内面に塗布して乾燥させることにより形成された、放射線を吸収可能な成分を含有する第一の釉薬層と、
乾燥させた前記第一の釉薬層の表面に、放射線を吸収可能な成分を含有しない釉薬を塗布することにより形成された、放射線を吸収可能な成分を含有しない第二の釉薬層と、
を有し、
前記焼却灰保管容器が、コンクリート製の建物内に保管されることを特徴とする焼却灰保管方法。
An incineration ash storage method using an incineration ash storage container for storing incineration ash containing a hollow metal and containing at least heavy metal, the incineration ash storage container,
A cylindrical trunk having openings at both ends;
A bottom part joined so as to seal the opening on one end side of the trunk part, a lid part capable of sealing the opening on the other end side of the trunk part,
With
The incineration ash contains a radioactive substance,
At least the body and the bottom are formed of ceramic;
Installing the incineration ash storage container in a state where the opening on the side to which the lid is attached is opened; and
Introducing incineration ash containing heavy metal into the incineration ash storage container from the opening on the side where the lid is attached;
Sealing the opening on the side to which the lid portion of the incinerated ash storage container is attached with the lid portion;
With
The incinerated ash storage container is formed by applying a glaze containing a component capable of absorbing radiation on the inner surface of the body portion and drying the first glaze layer containing a component capable of absorbing radiation; and ,
A second glaze layer not containing a component capable of absorbing radiation, formed by applying a glaze not containing a component capable of absorbing radiation on the surface of the dried first glaze layer;
Have
Baked却灰storage how to wherein the ash storage container is stored in a concrete building.
前記蓋部が、前記胴部に対して着脱可能に密閉する接合手段により、前記胴部に取り付けられることを特徴とする請求項1または2記載の焼却灰保管方法。 The lid portion is, by bonding means for detachably sealed to the barrel, ash storage method according to claim 1 or 2, wherein the attached to the body portion. 内部が空洞であり、少なくとも重金属を含んだ焼却灰を保管するための焼却灰保管容器を用いた焼却灰保管方法であって、前記焼却灰保管容器は、
両端部に開口を有する筒状の胴部と、
前記胴部の一端側の開口を密閉するように接合される底部と、前記胴部の他端側の開口を密閉可能な蓋部と、
を備え、
前記焼却灰は、放射性物質を含有し、
少なくとも前記胴部および前記底部がセラミックで成形され、
前記焼却灰保管容器を、蓋部が取り付けられる側の開口が開口した状態で設置する工程と、
前記蓋部が取り付けられる側の開口から前記焼却灰保管容器内に重金属を含んだ焼却灰を投入する工程と、
前記焼却灰保管容器の蓋部が取り付けられる側の開口を前記蓋部により密封する工程と、
を備え、
前記焼却灰保管容器が、放射線を吸収可能な成分を含有した釉薬を前記胴部の内面に塗布して乾燥させることにより形成された、放射線を吸収可能な成分を含有する第一の釉薬層と、
乾燥させた前記第一の釉薬層の表面に、放射線を吸収可能な成分を含有しない釉薬を塗布することにより形成された、放射線を吸収可能な成分を含有しない第二の釉薬層と、
を有し、
前記焼却灰保管容器の内部に重金属分解微生物を含むことを特徴とする焼却灰保管方法。
An incineration ash storage method using an incineration ash storage container for storing incineration ash containing a hollow metal and containing at least heavy metal, the incineration ash storage container,
A cylindrical trunk having openings at both ends;
A bottom part joined so as to seal the opening on one end side of the trunk part, a lid part capable of sealing the opening on the other end side of the trunk part,
With
The incineration ash contains a radioactive substance,
At least the body and the bottom are formed of ceramic;
Installing the incineration ash storage container in a state where the opening on the side to which the lid is attached is opened; and
Introducing incineration ash containing heavy metal into the incineration ash storage container from the opening on the side where the lid is attached;
Sealing the opening on the side to which the lid portion of the incinerated ash storage container is attached with the lid portion;
With
The incinerated ash storage container is formed by applying a glaze containing a component capable of absorbing radiation on the inner surface of the body portion and drying the first glaze layer containing a component capable of absorbing radiation; and ,
A second glaze layer not containing a component capable of absorbing radiation, formed by applying a glaze not containing a component capable of absorbing radiation on the surface of the dried first glaze layer;
Have
Baked却灰storage how to comprising a heavy metal degrading microorganisms inside the ash storage container.
前記焼却灰保管容器は、放射線を吸収可能な成分を含んだ前記蓋部で密閉されていることを特徴とする請求項1〜のいずれか1項に記載の焼却灰保管方法。 The incineration ash storage method according to any one of claims 1 to 4 , wherein the incineration ash storage container is sealed with the lid containing a component capable of absorbing radiation. 前記放射線を吸収可能な成分は鉛であることを特徴とする請求項1〜5のいずれか1項に記載の焼却灰保管方法。 The incinerated ash storage method according to claim 1 , wherein the component capable of absorbing radiation is lead. 内部が空洞であり、少なくとも重金属を含んだ焼却灰を保管するための焼却灰保管容器を用いた焼却灰保管方法であって、前記焼却灰保管容器は、
両端部に開口を有する筒状の胴部と、
前記胴部の一端側の開口を密閉するように接合される底部と、前記胴部の他端側の開口を密閉可能な蓋部と、
を備え、
前記焼却灰は、放射性物質を含有し、
少なくとも前記胴部および前記底部がセラミックで成形され、
前記焼却灰保管容器を、蓋部が取り付けられる側の開口が開口した状態で設置する工程と、
前記蓋部が取り付けられる側の開口から前記焼却灰保管容器内に重金属を含んだ焼却灰を投入する工程と、
前記焼却灰保管容器の蓋部が取り付けられる側の開口を前記蓋部により密封する工程と、
を備え、
前記焼却灰保管容器が、放射線を吸収可能な成分を含有した釉薬を前記胴部の内面に塗布して乾燥させることにより形成された、放射線を吸収可能な成分を含有する第一の釉薬層と、
乾燥させた前記第一の釉薬層の表面に、放射線を吸収可能な成分を含有しない釉薬を塗布することにより形成された、放射線を吸収可能な成分を含有しない第二の釉薬層と、
を有し、
前記放射線を吸収可能な成分はタングステンであることを特徴とする焼却灰保管方法。
An incineration ash storage method using an incineration ash storage container for storing incineration ash containing a hollow metal and containing at least heavy metal, the incineration ash storage container,
A cylindrical trunk having openings at both ends;
A bottom part joined so as to seal the opening on one end side of the trunk part, a lid part capable of sealing the opening on the other end side of the trunk part,
With
The incineration ash contains a radioactive substance,
At least the body and the bottom are formed of ceramic;
Installing the incineration ash storage container in a state where the opening on the side to which the lid is attached is opened; and
Introducing incineration ash containing heavy metal into the incineration ash storage container from the opening on the side where the lid is attached;
Sealing the opening on the side to which the lid portion of the incinerated ash storage container is attached with the lid portion;
With
The incinerated ash storage container is formed by applying a glaze containing a component capable of absorbing radiation on the inner surface of the body portion and drying the first glaze layer containing a component capable of absorbing radiation; and ,
A second glaze layer not containing a component capable of absorbing radiation, formed by applying a glaze not containing a component capable of absorbing radiation on the surface of the dried first glaze layer;
Have
Baked却灰storage how to wherein the absorbable component the radiation is tungsten.
内部が空洞であり、少なくとも重金属を含んだ焼却灰を保管するための焼却灰保管容器であって、該焼却灰保管容器が、
両端部に開口を有する筒状の胴部と、
前記胴部の一端側の開口を密閉するように接合される底部と、
前記胴部の他端側の開口を密閉可能な蓋部とを備え、
前記焼却灰は、放射性物質を含有し、
前記胴部の内面は、
放射線を吸収可能な成分を含有し、前記胴部の内面に塗布して乾燥させた第一の釉薬層と、
該乾燥させた前記第一の釉薬層の表面に塗布され、放射線を吸収可能な成分を含有しない第二の釉薬層と
を有し、前記第一の釉薬層および第二の釉薬層を含む前記胴部の内面が焼成されており、
少なくとも前記胴部および前記底部がセラミックで成形されていることを特徴とする焼却灰保管容器。
An incineration ash storage container for storing incineration ash having a hollow inside and containing at least heavy metal, the incineration ash storage container comprising:
A cylindrical trunk having openings at both ends;
A bottom part joined so as to seal an opening on one end side of the body part;
A lid that can seal the opening on the other end of the body,
The incineration ash contains a radioactive substance,
The inner surface of the trunk is
A first glaze layer containing a component capable of absorbing radiation, applied to the inner surface of the barrel and dried;
A second glaze layer which is applied to the surface of the dried first glaze layer and does not contain a component capable of absorbing radiation;
And the inner surface of the body including the first glaze layer and the second glaze layer is fired,
An incinerated ash storage container, wherein at least the body and the bottom are formed of ceramic.
前記底部は、前記胴部の一端側の開口に挿入される挿入部と、該挿入部と連続して形成され、前記挿入部よりも外径が大きくなるように形成された鍔部とを有し、
前記鍔部が前記胴部の一端側の端面に当接し、前記挿入部で胴部外部から前記胴部の一端側の開口が密閉され、前記胴部の一端側の部位と前記底部との接触部分が密封手段により密封されていることを特徴とする請求項記載の焼却灰保管容器。
The bottom portion includes an insertion portion that is inserted into the opening on one end side of the body portion, and a flange portion that is formed continuously with the insertion portion and has an outer diameter larger than that of the insertion portion. And
The flange portion is in contact with an end surface on one end side of the body portion, the opening on the one end side of the body portion is sealed from the outside of the body portion at the insertion portion, and the portion on one end side of the body portion is in contact with the bottom portion The incinerated ash storage container according to claim 8, wherein the portion is sealed by a sealing means.
前記胴部の一端側は内径側へ屈曲して屈曲部をなし、
前記底部は、前記胴部の一端側の開口に挿入される挿入部と、該挿入部と連続して形成され、前記挿入部よりも外径が大きく、前記胴部の内径と同径または小径の鍔部とを有し、
前記屈曲部に前記鍔部が胴部内側から係合し、前記挿入部により胴部内側から前記胴部の一端側の開口が密閉されていることを特徴とする請求項記載の焼却灰保管容器。
One end side of the body portion is bent toward the inner diameter side to form a bent portion,
The bottom part is formed continuously with the insertion part inserted into the opening on one end side of the body part, and has an outer diameter larger than the insertion part, and is the same diameter as or smaller than the inner diameter of the body part. And
The incinerated ash storage according to claim 8 , wherein the flange portion engages with the bent portion from the inside of the trunk portion, and the opening on one end side of the trunk portion is sealed from the inside of the trunk portion by the insertion portion. container.
前記焼却灰保管容器の内部に焼却灰が収容されてなる請求項8〜10のいずれか1項に記載の焼却灰保管容器。 The incineration ash storage container according to any one of claims 8 to 10 , wherein the incineration ash is accommodated inside the incineration ash storage container. 前記蓋部が、前記胴部に対して着脱可能に密閉する接合手段により、前記胴部に取り付けられることを特徴とする請求項8〜11のいずれか1項に記載の焼却灰保管容器。 The incinerated ash storage container according to any one of claims 8 to 11 , wherein the lid portion is attached to the barrel portion by a joining unit that is detachably sealed with respect to the barrel portion.
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