JPH077111B2 - Incineration treatment method of radioactive waste - Google Patents
Incineration treatment method of radioactive wasteInfo
- Publication number
- JPH077111B2 JPH077111B2 JP1082800A JP8280089A JPH077111B2 JP H077111 B2 JPH077111 B2 JP H077111B2 JP 1082800 A JP1082800 A JP 1082800A JP 8280089 A JP8280089 A JP 8280089A JP H077111 B2 JPH077111 B2 JP H077111B2
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- radioactive
- waste
- furnace
- radioactive waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Gasification And Melting Of Waste (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、放射性雑固体廃棄物と放射性廃液とを同時に
焼却処理できる放射性廃棄物の焼却処理方法に関するも
のである。Description: TECHNICAL FIELD The present invention relates to a method for incineration treatment of radioactive waste, which can incinerate radioactive solid waste and radioactive waste liquid at the same time.
（従来の技術） 従来から放射性廃棄物の処理装置においては、ポリエチ
レン、ウエス等の可燃性の放射性雑固体廃棄物を焼却処
理するだけでなく、施設内での使用後の手洗い水、シャ
ワー水、あるいは床ドレン等の放射性廃液も処理する必
要があり、そのために雑固体廃棄物処理用の焼却炉の他
に廃液用の処理設備を設ける必要があった。しかし、廃
液用の処理設備を別途専用に設けることは、発生した廃
液を該装置まで移送するための余分の労力を強いられる
とともに、設備投資のための経済的な負担も大きく、ま
た設備稼働のための運転、管理においても手間が増える
という欠点があった。(Prior Art) Conventionally, radioactive waste treatment equipment not only incinerates combustible radioactive miscellaneous solid wastes such as polyethylene and waste, but also uses hand-washing water, shower water after use in the facility, Alternatively, it is necessary to treat radioactive waste liquid such as floor drain, and therefore, it is necessary to provide a treatment facility for waste liquid in addition to an incinerator for treating miscellaneous solid waste. However, providing a separate treatment facility for waste liquid requires extra labor for transferring the generated waste liquid to the device, and also imposes a large economic burden on the equipment investment, and also the equipment operation However, there is a drawback that it is troublesome in operation and management.
（発明が解決しようとする課題） 本発明は上記の従来欠点を解消して、放射性廃液のため
の専用処理設備を設けることなく、放射性雑固体廃棄物
と放射性廃液とを同時に、しかも効率よく焼却処理でき
る放射性廃棄物の焼却処理方法を提供することを目的と
して完成されたものである。(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional drawbacks and incinerates radioactive solid waste and radioactive waste liquid simultaneously and efficiently without providing a dedicated treatment facility for radioactive liquid waste. It was completed for the purpose of providing a method for incinerating radioactive waste that can be treated.
（課題を解決するための手段） 上記の課題を解決するためになされた本発明は、放射性
雑固体廃棄物の焼却炉の上部に設けられた廃液バーナの
近傍の調整弁と、低濃度の放射性廃液を集合させた廃液
タンクとの間で、放射性廃液をスラッジが沈降しない管
内流速で強制循環させながら、その一部を廃液バーナか
ら燃焼用空気とともに噴霧状に炉内に噴射し、放射性雑
固体廃棄物とともに炉内で混焼させることを特徴とする
ものである。(Means for Solving the Problems) The present invention made to solve the above problems includes a regulating valve near a waste liquid burner provided in the upper part of an incinerator for radioactive miscellaneous solid waste, and a low-concentration radioactive substance. While radioactive liquid waste is forcibly circulated between the waste liquid tank that collects the liquid waste liquid and the sludge in the pipe at a flow velocity that does not cause sedimentation, a part of the liquid liquid is injected from the liquid waste burner into the furnace in the form of a spray to produce radioactive miscellaneous solids. It is characterized by co-firing with waste in a furnace.
以下、実施例に基き本発明を詳細に説明する。Hereinafter, the present invention will be described in detail based on Examples.
（実施例） 図面は放射性廃棄物の焼却処理装置の一例を示す図であ
り、（１）は放射性雑固体廃棄物の焼却炉、（２）は廃
液バーナ、（３）は廃液タンクを示している。焼却炉
（１）は天井部に雑固体廃棄物を投入するための投入機
（４）を備えており、炉壁上部にはスラッジを含む放射
性廃液を燃焼用空気とともに噴霧状に炉内に噴射して燃
焼させる廃液バーナ（２）を有している。この廃液バー
ナ（２）は焼却炉（１）の炉壁に対して45゜程度傾けて
炉床に向けて設けることが好ましい。また廃液バーナ
（２）は所定量の燃焼用空気が供給される構造であるこ
とはもちろんのこと、調整弁（５）、ポンプ（６）を介
して低濃度の放射性廃液を集合させた廃液タンク（３）
に接続されている。調整弁（５）は図示のように廃液バ
ーナ（２）の近傍に設けられている。(Example) The drawing is a diagram showing an example of a radioactive waste incineration processing apparatus, in which (1) shows an incinerator for radioactive solid waste, (2) shows a waste liquid burner, and (3) shows a waste liquid tank. There is. The incinerator (1) is equipped with a throwing machine (4) for throwing miscellaneous solid waste into the ceiling, and a radioactive waste liquid containing sludge is sprayed into the furnace along with combustion air at the upper part of the furnace wall. It has a waste liquid burner (2) which is burned by burning. It is preferable that the waste liquid burner (2) is inclined toward the furnace wall of the incinerator (1) by about 45 ° toward the hearth. The waste liquid burner (2) has a structure in which a predetermined amount of combustion air is supplied, and a waste liquid tank in which a low concentration of radioactive waste liquid is collected via the adjusting valve (5) and the pump (6). (3)
It is connected to the. The regulating valve (5) is provided near the waste liquid burner (2) as shown.
一方、該廃液タンク（３）と調整弁（５）の間には、管
内流速を一定に維持するための強制循環ライン（７）が
設けてあり、この強制ライン（７）内をスラッジが沈降
しない管内流速で放射性廃液を循環させている。On the other hand, a forced circulation line (7) is provided between the waste liquid tank (3) and the regulating valve (5) to keep the flow velocity in the pipe constant, and sludge settles in the forced line (7). The radioactive liquid waste is circulated at a flow velocity in the pipe.
焼却炉（１）の上方部には排ガス出口（８）が形成され
ており、該排ガス出口（８）は焼却炉内で発生した燃焼
排ガスを除塵するためのセラミックフィルタ（９）、冷
却装置（10）、高性能粒子用フィルタからなる排ガスフ
ィルタ（11）へと順次接続され、最後に排ガスブロワ
（12）に続いている。なお、本実施例においては排ガス
ブロワ（12）と並列に排ガス補助ブロワ（13）が予備と
して設けてある。An exhaust gas outlet (8) is formed in the upper part of the incinerator (1), and the exhaust gas outlet (8) is a ceramic filter (9) for removing dust of combustion exhaust gas generated in the incinerator, a cooling device ( 10), connected to the exhaust gas filter (11) consisting of high-performance particle filters, and finally connected to the exhaust gas blower (12). In this embodiment, an exhaust gas auxiliary blower (13) is provided as a spare in parallel with the exhaust gas blower (12).
（作用） 本発明の放射性廃棄物の焼却処理方法においては、まず
焼却炉（１）の予熱後投入機（４）より放射性雑固体廃
棄物を投入し、燃焼を開始する。一方、調整弁（５）を
所定量に開くことによって廃液バーナ（２）からはスラ
ッジを含む一定量の放射性廃液が燃焼用空気とともに噴
霧状となって炉内に噴射され、炉内を落下する間に蒸発
乾燥が進行するので、焼却炉（１）内において雑固体廃
棄物と放射性廃液とが効率よく、かつ完全燃焼の状態で
混焼することとなる。(Operation) In the radioactive waste incineration processing method of the present invention, first, the radioactive miscellaneous solid waste is charged from the preheating injection device (4) of the incinerator (1) to start combustion. On the other hand, by opening the adjusting valve (5) to a predetermined amount, a certain amount of radioactive waste liquid containing sludge is sprayed from the waste liquid burner (2) together with combustion air into the furnace and drops inside the furnace. Since evaporation and drying proceed in the meantime, miscellaneous solid waste and radioactive waste liquid are efficiently mixed in the incinerator (1) in a completely combusted state.
この場合において、廃液を集合させた廃液タンク（３）
と廃液バーナ（２）の近傍に設けられた調整弁（５）と
の区間内には強制循環ライン（７）が設けられており、
廃液タンク（３）からはポンプ（６）によって常に調整
弁（５）の設定値よりも若干高めの圧力によって放射性
廃液が廃液バーナ（２）に供給されるとともに、調整弁
（５）で絞られ、廃液バーナ（２）へ供給されなかった
放射性廃液は強制循環ライン（７）を介して廃液タンク
（３）内へ還流することとなる。したがって、強制循環
ライン（７）内の管内流速は常に一定速度が維持される
こととなり、放射性廃液内のスラッジが管内に沈降する
ことは完全に防止されることとなる。なお、スラッジが
沈降しない管内流速の設定は調整弁（５）、及びポンプ
（６）の設定値の変更によって容易に調整可能である。
一方、前述の雑固体廃棄物と廃液との混焼によって発生
した燃焼排ガスは、排ガス出口（８）を通じてセラミッ
クフィルタ（９）、冷却装置（10）、排ガスフィルタ
（11）へと順次送られ完全に除塵した状態で排ガスブロ
ワ（12）により大気中へ放出されることとなる。In this case, a waste liquid tank (3) that collects waste liquid
A forced circulation line (7) is provided in the section between the waste liquid burner (2) and the regulating valve (5) provided near the waste liquid burner (2).
From the waste liquid tank (3), the pump (6) always supplies radioactive waste liquid to the waste liquid burner (2) at a pressure slightly higher than the set value of the adjustment valve (5), and at the same time it is throttled by the adjustment valve (5). The radioactive waste liquid that has not been supplied to the waste liquid burner (2) is returned to the waste liquid tank (3) through the forced circulation line (7). Therefore, the flow velocity in the pipe in the forced circulation line (7) is always maintained at a constant velocity, and the sludge in the radioactive waste liquid is completely prevented from settling in the pipe. The setting of the flow velocity in the pipe where the sludge does not settle can be easily adjusted by changing the set values of the adjusting valve (5) and the pump (6).
On the other hand, the combustion exhaust gas generated by the co-firing of the above-mentioned miscellaneous solid waste and waste liquid is sequentially sent to the ceramic filter (9), the cooling device (10) and the exhaust gas filter (11) through the exhaust gas outlet (8), and is completely discharged. The dust will be released into the atmosphere by the exhaust gas blower (12).
（発明の効果） 以上の説明から明らかなように、本発明においては放射
性雑固体廃棄物とスラッジを含む放射性廃液とを同時
に、しかも効率よく一つの炉によって焼却処理できるか
ら、放射性廃液処理用の設備を別に設けたり、放射性廃
液を運んだりする必要が無いうえ、廃液バーナと廃液タ
ンクとの区間における管内のスラッジ沈降をも完全に防
止して長時間の焼却処理にも耐えることができる。よっ
て本発明は従来にない新規な放射性廃棄物の焼却処理方
法を提供するものとして、産業の発達に大いに寄与する
ものである。(Effects of the Invention) As is apparent from the above description, in the present invention, radioactive miscellaneous solid waste and radioactive waste liquid containing sludge can be incinerated at the same time and efficiently in one furnace. There is no need to separately provide equipment or carry radioactive waste liquid, and it is possible to completely prevent sludge settling in the pipe in the section between the waste liquid burner and the waste liquid tank and to withstand long-time incineration treatment. Therefore, the present invention greatly contributes to the development of industry by providing an unprecedented novel method for incineration of radioactive waste.
第１図は本発明の放射性廃棄物の焼却処理方法の実施例
を示すフローシートである。 （１）：焼却炉、（２）：廃液バーナ、（３）：廃液タ
ンク、（５）：調整弁、（６）：ポンプ、（７）：強制
循環ラインFIG. 1 is a flow sheet showing an embodiment of the radioactive waste incineration method of the present invention. (1): incinerator, (2): waste liquid burner, (3): waste liquid tank, (5): adjusting valve, (6): pump, (7): forced circulation line
Claims (1)
られた廃液バーナの近傍の調整弁と、低濃度の放射性廃
液を集合させた廃液タンクとの間で、放射性廃液をスラ
ッジが沈降しない管内流速で強制循環させながら、その
一部を廃液バーナから燃焼用空気とともに噴霧状に炉内
に噴射し、放射性雑固体廃棄物とともに炉内で混焼させ
ることを特徴とする放射性廃棄物の焼却処理方法。1. Sludge settles radioactive waste liquid between a control valve near a waste liquid burner provided in the upper part of an incinerator for radioactive miscellaneous solid waste and a waste liquid tank in which a low concentration of radioactive waste liquid is collected. The incineration of radioactive waste, which is characterized by injecting part of it from the waste liquid burner into the furnace in a spray form together with combustion air into the furnace while forcibly circulating it at a flow velocity in the pipe, and co-firing it with radioactive miscellaneous solid waste in the furnace. Processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1082800A JPH077111B2 (en) | 1989-03-31 | 1989-03-31 | Incineration treatment method of radioactive waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1082800A JPH077111B2 (en) | 1989-03-31 | 1989-03-31 | Incineration treatment method of radioactive waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02259599A JPH02259599A (en) | 1990-10-22 |
| JPH077111B2 true JPH077111B2 (en) | 1995-01-30 |
Family
ID=13784482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1082800A Expired - Lifetime JPH077111B2 (en) | 1989-03-31 | 1989-03-31 | Incineration treatment method of radioactive waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077111B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5543868B2 (en) * | 2010-07-22 | 2014-07-09 | 日本碍子株式会社 | Processing method of radioactive silicone oil |
| JP5543867B2 (en) * | 2010-07-22 | 2014-07-09 | 日本碍子株式会社 | Radioactive silicone oil incinerator |
| JP6127113B1 (en) * | 2015-11-05 | 2017-05-10 | 株式会社プランテック | Radioactive contaminant treatment method and radioactive contaminant treatment facility |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599879A (en) * | 1982-07-07 | 1984-01-19 | 日本電信電話株式会社 | Microconnector for mutually connecting circuit board |
| JPS63292095A (en) * | 1987-05-26 | 1988-11-29 | Ishikawajima Harima Heavy Ind Co Ltd | Treatment of radioactive waste liquid containing ultra uranium elements |
-
1989
- 1989-03-31 JP JP1082800A patent/JPH077111B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02259599A (en) | 1990-10-22 |
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