JPS58149000A - Device for removing dust from waste gas of device for nuclear industry - Google Patents
Device for removing dust from waste gas of device for nuclear industryInfo
- Publication number
- JPS58149000A JPS58149000A JP1987483A JP1987483A JPS58149000A JP S58149000 A JPS58149000 A JP S58149000A JP 1987483 A JP1987483 A JP 1987483A JP 1987483 A JP1987483 A JP 1987483A JP S58149000 A JPS58149000 A JP S58149000A
- Authority
- JP
- Japan
- Prior art keywords
- container
- partition wall
- cleaning
- collection
- cleaning liquid
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/04—Regenerating the washing fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Separation Of Particles Using Liquids (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、原子核工業用装置の廃ガスから粉塵粒トを洗
除する装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for cleaning dust particles from the waste gas of a nuclear industrial installation.
液状の高放射性廃産物を溶解炉中でガラス化する際に生
じる廃ガスは運行された粉塵粒子と分離されなければな
らない、それというのもこれら粒子が高放射性であるか
らである。そのため、洗浄カラムまたはタワー洗浄装置
より成るガス洗浄装置を使用することが可能である。こ
の洗浄装置の下方に、洗浄液の捕集容器が配置されてい
る、洗浄液は、ガス洗浄装置の頂部から装入され、Ｌ方
からガス洗浄装置を流下しかつ捕集容器中へ滴下する。The waste gases produced during the vitrification of liquid highly radioactive waste products in melting furnaces must be separated from the entrained dust particles, since these particles are highly radioactive. It is therefore possible to use a gas scrubber consisting of a scrubber column or a tower scrubber. A collection container for cleaning liquid is arranged below the cleaning device.The cleaning liquid is charged from the top of the gas cleaning device, flows down the gas cleaning device from the L direction, and drips into the collection container.
炉廃ガスは、Ｆ方からガス洗浄装置中へ導入されかつこ
れか下方から七、方へ洗浄液に対し向流で貫流する。ガ
ス洗浄装置を通る貫流中に、大部分の粉塵粒子が洗浄液
により吸収される。The waste gas is introduced into the gas cleaning device from side F and flows countercurrently to the cleaning fluid from below in this direction. During the flow through the gas scrubber, most of the dust particles are absorbed by the scrubbing liquid.
汚染された洗浄液が捕集容器中へ流入する。Contaminated cleaning fluid flows into the collection vessel.
この洗浄液が、この捕集容器から再びガス洗浄装置の頂
部に返流される。従って、洗浄液のこの循環系は、放射
性の２次廃産物の量を極小化するために備えられた。The cleaning liquid is returned from the collection vessel to the top of the gas scrubber. Therefore, this circulation system of cleaning fluid was provided to minimize the amount of radioactive secondary waste products.
洗浄液を再びガス洗浄装置の頂部に導くため、いわゆる
エアーリフト搬送装置が有利であると実証された。これ
らエアーリフト搬送装置の場合、搬送運動が、空気を液
体カラム中へ泡入することにより達せられる。エアーリ
フトを使用する洗浄液の搬送は、エアーリフトが可動部
材を有しないので、ポンプを使用するよりも確実である
、これにより、さもなければ場合により必要なポンプ交
換がなくなる。汚染されたポンプによる２次廃産物が生
ぜず、かつポンプ交換中に生じうる人員の放射線負荷が
なくなる。In order to lead the cleaning liquid back to the top of the gas cleaning device, a so-called airlift conveying device has proven advantageous. In these air lift conveying devices, the conveying movement is achieved by bubbling air into the liquid column. Transporting the cleaning liquid using an air lift is more reliable than using a pump, since the air lift has no moving parts, thereby eliminating pump replacements that would otherwise be necessary. Secondary waste products from contaminated pumps are not produced, and radiation exposure to personnel that can occur during pump replacement is eliminated.
ところで、循環系を循環する洗浄液が所定時間後に著る
しく汚染され、エアーリフトで吸引されかつガス洗浄装
置中へ導かれた場合、エア１）フ）またはガス洗浄装置
の閉塞が生じることがある。しかし少くとも、ガス洗浄
装置の除−塵係数が低減される。従って従来より、洗浄
液を短かい時間で交換する必要があった。By the way, if the cleaning liquid circulating in the circulation system becomes significantly contaminated after a certain period of time and is sucked in by the air lift and guided into the gas cleaning device, the air 1) or the gas cleaning device may be blocked. . However, at least the dust removal coefficient of the gas cleaning device is reduced. Therefore, conventionally, it has been necessary to replace the cleaning liquid within a short period of time.
本発明の根底をなす課題は、原子核工業用装置の廃ガス
からの粉塵粒子を洗除するため、循環系で導かれる装置
が著るしく長い使用時間を有する装置をつくり出すこと
である。The problem underlying the invention is to create a device for cleaning dust particles from the waste gases of nuclear industrial installations, in which the device is guided in a circulation system and has a significantly longer service life.
本発明によればこの課題は、特許請求の範囲第１項の特
徴部により解決される。According to the invention, this problem is solved by the features of claim 1.
ガス洗浄装置から捕集容器中へ流入する汚染された洗浄
液に、沈殿および傾瀉による浄化が施こされる。下部仕
切り壁が洗浄液用の溢流堰を形成するとともに、上部仕
切り壁が、１方で下部仕切り壁により形成された２つの
室の廃ガスの分離に使用されかつ他方で、この上部仕切
り壁が第１の室の液面下へ潜入することにより粉塵成分
を第１の室中に保留するのに役立つ。The contaminated cleaning liquid flowing from the gas cleaning device into the collection vessel is purified by settling and decanting. The lower partition wall forms an overflow weir for the cleaning liquid, and the upper partition wall is used on the one hand to separate the waste gases of the two chambers formed by the lower partition wall, and on the other hand, this upper partition wall forms an overflow weir for the cleaning liquid. By penetrating below the liquid level in the first chamber, it serves to retain the dust components in the first chamber.
本発明によれば、汚染された洗浄液に粗洗浄が施こされ
、これが洗浄液の使用時間を延長する。According to the invention, the contaminated cleaning fluid is subjected to rough cleaning, which extends the usage time of the cleaning fluid.
本発明による沈殿−および傾瀉工程中の洗浄液のこの中
間洗浄が、ガス洗浄装置のわずかな汚染を生じ、かつそ
れとともに湿式除塵装置の大きい除塵係数が得られる。This intermediate cleaning of the cleaning liquid during the settling and decanting steps according to the invention results in a slight contamination of the gas scrubbing system and with it a high dust removal coefficient of the wet dust removal system.
洗浄液で運行された粉塵成分によるガス洗浄装置または
エアーリフト搬送装置の閉塞が有効に阻止される。Blockage of the gas cleaning device or the air lift conveying device by dust components carried by the cleaning liquid is effectively prevented.
本発明の有利な実施例が、特許請求の範囲第２項の特徴
部に記載されている。この構造により、ガス洗浄装置の
Ｆ方の捕集容器が２つ以上の室に分割される。従って、
多数の沈殿工程と傾瀉工程とが交互する。Advantageous embodiments of the invention are described in the characterizing part of claim 2. With this structure, the collection container on the F side of the gas cleaning device is divided into two or more chambers. Therefore,
A number of precipitation steps and decanting steps alternate.
本発明の゛もう１つの有利な実施例が、・特許請求の範
囲第３項の特徴部により開示されている。Another advantageous embodiment of the invention is disclosed by the features of claim 3.
従って、液体流入口と接続された室の底部に集めら′れ
た沈殿物が、簡単に吸引されかつ高放射性廃産物の貯蔵
容器中へ返送される。The precipitate collected at the bottom of the chamber connected to the liquid inlet is thus simply sucked out and returned to the highly radioactive waste storage container.
以下に、本発明を図面実施例につき詳説する。In the following, the invention will be explained in detail with reference to drawing examples.
溶解炉の廃ガスから粉塵粒子を洗除する装置は、横方向
に延びる２つの仕切り壁、２および３により貫通されだ
捕集容器１を有する。容器底部に固定された下部仕切り
壁２が、捕集容器を２つの貯液室４および５に分割する
。上部仕切り壁３が、容器蓋に取付けられかつ捕集容器
１の貯液室４中へ垂直に突入する。Ｌ部仕切り壁３が、
仕切り壁２と距離をおいて配置されかつ仕切り壁２の終
端部を経て突出する。The device for cleaning dust particles from the waste gas of a melting furnace has a collection vessel 1 penetrated by two laterally extending partition walls 2 and 3. A lower partition wall 2 fixed to the bottom of the container divides the collection container into two storage chambers 4 and 5. An upper partition wall 3 is attached to the container lid and projects vertically into the storage chamber 4 of the collection container 1. The L part partition wall 3 is
It is arranged at a distance from the partition wall 2 and protrudes through the terminal end of the partition wall 2.
捕集容器ＩＪ：に、洗浄カラム６が垂直に配置されかつ
丁端部が管１０を経て捕集容器１０室４の範囲内に接続
されている。洗浄カラム６の頂部に、洗浄された廃ガス
の出口管７および洗浄液の導入管８が取付けられている
。この導入管８に、捕集容器ｌの排液管９が、室５の範
囲内の容器底部から接続されている。A washing column 6 is arranged vertically in the collection vessel IJ: and its tip end is connected via a pipe 10 to the area of the chamber 4 of the collection vessel IJ:. At the top of the washing column 6, an outlet pipe 7 for the washed waste gas and an inlet pipe 8 for the washing liquid are attached. A drain pipe 9 of the collecting container l is connected to this inlet pipe 8 from the bottom of the container within the area of the chamber 5 .
導入管８および排液管９間の接続管１１へ、自体公知の
エアーリフト容器の連結管１２が接−続されている。A connecting pipe 12 of an air lift container, which is known per se, is connected to the connecting pipe 11 between the inlet pipe 8 and the drain pipe 9.
他のエアーリフト装置の搬送管１３が貯液室４の底部に
まで達する。The conveyance pipe 13 of another air lift device reaches the bottom of the liquid storage chamber 4.
捕集容器１は、室４の範囲内に、仕切り壁２の終端部を
ト廻る高さに配置された廃ガス導入管１４を有する。The collection vessel 1 has a waste gas inlet pipe 14 arranged in the area of the chamber 4 at a height that goes around the end of the partition wall 2 .
前記装置の作動方法は以下の通りである。The method of operation of the device is as follows.
洗浄カラム６から返流する汚染された洗浄液が、差当り
第１の室４中へ入る。液位が仕切シ壁２の上縁に達した
場合、・洗浄液が仕切り壁のとのＦ縁を越えて流れかつ
第２の室へ流入する。The contaminated washing liquid flowing back from the washing column 6 initially enters into the first chamber 4 . When the liquid level reaches the upper edge of the partition wall 2, the cleaning liquid flows over the F edge of the partition wall and into the second chamber.
仕切り壁２は、洗浄液の溢流堰を形成する。粉塵粒子が
、第１の室４中で沈殿する。The partition wall 2 forms an overflow weir for the cleaning liquid. Dust particles settle in the first chamber 4.
仕切り壁３により、−室４および５が廃ガス的に相互に
分離される。さらに、仕切り壁３が液面丁へ潜入せしめ
られることにより、室４中で溶液上を浮遊する軽質成分
の保留か行なわれる。The partition wall 3 separates the chambers 4 and 5 from each other in terms of waste gas. Furthermore, by infiltrating the partition wall 3 into the liquid level, light components floating on the solution in the chamber 4 are retained.
さらに、仕切り壁の潜入によシ、沈殿する粉塵粒子の、
仕切シ壁２を越えた直接の移行が阻止される。。Furthermore, dust particles that settle due to infiltration of partition walls,
Direct migration beyond the partition wall 2 is prevented. .
第２の室５中で、エアーリフト搬送装置１２を使用し導
管１１を経て、室４におけるよりも低い充填液位が維持
されるっ字４から室５へ移行する際の洗浄液の直線流速
が、大きい流動断面積により相対的にわずかである。こ
パにより、室４中の粉塵粒子の沈殿が殆んど阻止されな
い。In the second chamber 5, using the air lift conveying device 12 via the conduit 11, the linear flow rate of the cleaning liquid during the transition from the cross-section 4 to the chamber 5 is maintained, which is lower than in the chamber 4. , is relatively small due to the large flow cross section. The dust particles hardly prevent settling of the dust particles in the chamber 4.
従って、室５中に、粉塵粒子が２分に分離された洗浄溶
液が入るにすぎない。この洗浄溶液が、エアーリフト搬
送装置１２を経て洗浄カラム６の頂部に返送される。Therefore, only a cleaning solution from which the dust particles have been separated for 2 minutes enters the chamber 5. This wash solution is returned to the top of the wash column 6 via the air lift conveyor 12.
室４の底部に集められた、粉塵粒子より成る沈殿物が、
第２のエアーリフト搬送装置１３を使用し周期的に吸引
されかつ高放射性廃産物の貯蔵容器中へ返送される。A sediment consisting of dust particles collected at the bottom of chamber 4 is
Using the second airlift conveyor 13, it is periodically aspirated and returned into the highly radioactive waste storage container.
まだ、洗浄液の洗浄効果を高めるため、捕集容器１の、
２つ以上の室への分割を実施することが可能である。こ
の場合、この分割は、上方および下方から交互に取付け
られた仕切り壁により達成される。In order to improve the cleaning effect of the cleaning liquid, the collection container 1 is still
It is possible to carry out a division into two or more chambers. In this case, this division is achieved by partition walls installed alternately from above and from below.
図面は、本発明による装置の１実施例を略示する縦断面
図である。The drawing shows a schematic longitudinal section through an embodiment of the device according to the invention.
Claims (1)
産物用のガラス化炉の廃ガスからの粉塵粒子を洗除する
ため、直立の自流洗浄装置およびその下方に配置された
洗浄液用捕集容器を有し、その場合洗浄液が循環系で導
かれる装置において、捕集容器（１）が、側面方向に距
離をおいて相互に配置され、捕集容器を通して横方向に
延びかつ捕集容器よりも小さい高さを有する２つの仕切
り壁（２，３）を有し、洗浄液流入口に隣接する仕切壁
（３）が容器蓋に固定されかつ捕集容器（１）中へ延び
、その下方に距離をおいた仕切り壁（２）が容器底部に
固定され、これら２つの仕切り壁の終端部が若干型なり
、かつ洗浄液の流出口（９）が下部仕切り壁（２）の背
後の容器底部に配置されていることを特徴とする原子核
工業用装置の廃ガスから粉塵粒子を洗除する装置、 ２ 交互に容器蓋および容器底部に配置された２つ以上
の仕切り壁（Ｚ−、、３）が備えられていることを特徴
とする特許請求の範囲第１項記載の原子核工業用装置の
廃ガスから粉塵粒子を洗除する装置。 ３ 原子核工業用装置の廃ガス、なかんずく高放射性廃
産物用のガラス化炉の廃ガスからの粉塵粒子を洗除する
ため、直立の向流洗浄装置およびその下方に配置された
洗浄液用捕集容器を有し、その場合洗浄液が循環系で導
かれるための、捕集容器（１）が、側面方向に距離をお
いて相互に配置され、捕集容器を通して横方向に延びか
つ捕集容器よりも小さい高さを有する２つの仕切シ壁（
２１３）を有し、洗浄液流入口に隣接する仕切り壁（３
）が容器蓋に固定されかつ捕集容器（１）中へ延び、そ
の下方に距離をおいた仕切シ壁（２）が容器底部に固定
され、これら２つの仕切り壁材端部が若ト重なり、かつ
洗浄液の流出口（９）が下部仕切り壁（２）の背後の容
器底部に配置されている装置において、収容可能な吸引
管（１３）が、Ｆ部仕切り壁（２）により捕集容器（１
）中に形成された、流入口に接続する室（４）中の容器
底部に終ることを特徴とする原子核工業用装置の廃ガス
から粉塵粒子を洗除する装置。[Scope of Claims] 1. An upright self-flow cleaning device and arranged below it for cleaning dust particles from the waste gas of nuclear industrial equipment, in particular from the waste gas of vitrification furnaces for highly radioactive waste products. In an apparatus having collection containers for cleaning liquid, in which case the cleaning liquid is conducted in a circulation system, the collection containers (1) are arranged laterally at a distance from each other and extend laterally through the collection containers and It has two partition walls (2, 3) having a height smaller than the collection container, the partition wall (3) adjacent to the cleaning liquid inlet being fixed to the container lid and extending into the collection container (1). , a partition wall (2) placed a distance below is fixed to the bottom of the container, the terminal ends of these two partition walls are slightly shaped, and the cleaning liquid outlet (9) is located behind the lower partition wall (2). A device for cleaning dust particles from waste gas of a nuclear industrial device, characterized in that the device is arranged at the bottom of a container, characterized in that it is arranged at the bottom of a container, , , 3). An apparatus for cleaning dust particles from waste gas of nuclear industrial equipment according to claim 1. 3. An upright countercurrent cleaning device and a collection vessel for the cleaning liquid located below it for cleaning dust particles from the exhaust gases of nuclear industrial installations, in particular of vitrification furnaces for highly radioactive waste products. , in which the collection vessels (1), for which the cleaning liquid is conducted in the circulation system, are laterally arranged at a distance from each other and extend laterally through the collection vessels and are further away from each other than the collection vessels. Two partition walls with a small height (
213) and a partition wall (3) adjacent to the cleaning liquid inlet.
) is fixed to the container lid and extends into the collection container (1), and a partition wall (2) is fixed to the bottom of the container at a distance below it, and the ends of these two partition wall materials overlap each other. , and in which the cleaning liquid outlet (9) is arranged at the bottom of the container behind the lower partition wall (2), the accommodating suction tube (13) is connected to the collection container by the F partition wall (2). (1
) A device for cleaning dust particles from the waste gas of a nuclear industrial installation, characterized in that it ends at the bottom of the vessel in a chamber (4) formed in and connected to an inlet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE32055366 | 1982-02-17 | ||
| DE19823205536 DE3205536C2 (en) | 1982-02-17 | 1982-02-17 | Device for washing out dust particles from exhaust gases from a nuclear facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58149000A true JPS58149000A (en) | 1983-09-05 |
Family
ID=6155885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987483A Pending JPS58149000A (en) | 1982-02-17 | 1983-02-10 | Device for removing dust from waste gas of device for nuclear industry |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS58149000A (en) |
| BE (1) | BE895793A (en) |
| BR (1) | BR8300711A (en) |
| DE (1) | DE3205536C2 (en) |
| FR (1) | FR2521447B1 (en) |
| GB (1) | GB2114912A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6336817A (en) * | 1986-07-31 | 1988-02-17 | Chiyoda Chem Eng & Constr Co Ltd | Wet flue gas purifying method and device therefor |
| CN102764551A (en) * | 2012-07-02 | 2012-11-07 | 奇瑞汽车股份有限公司 | Dedusting and humidifying device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5044400A (en) * | 1973-08-24 | 1975-04-21 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1058686B (en) * | 1956-03-19 | 1959-06-04 | Metallgesellschaft Ag | Process for the recovery of the iron hydroxide from the washing waters which arise during the regeneration of alkaline iron hydroxide suspensions used for the absorption of H S from gases |
| DE2751235C3 (en) * | 1977-11-16 | 1981-05-27 | Nukem Gmbh, 6450 Hanau | Method and device for generating nitrogen oxide-free exhaust gases during the dissolution of irradiated fuel assemblies |
-
1982
- 1982-02-17 DE DE19823205536 patent/DE3205536C2/en not_active Expired
-
1983
- 1983-01-12 FR FR8300395A patent/FR2521447B1/en not_active Expired
- 1983-02-02 BE BE0/210039A patent/BE895793A/en not_active IP Right Cessation
- 1983-02-10 JP JP1987483A patent/JPS58149000A/en active Pending
- 1983-02-11 BR BR8300711A patent/BR8300711A/en unknown
- 1983-02-17 GB GB8304399A patent/GB2114912A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5044400A (en) * | 1973-08-24 | 1975-04-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3205536C2 (en) | 1984-02-23 |
| DE3205536A1 (en) | 1983-09-01 |
| GB2114912A (en) | 1983-09-01 |
| GB8304399D0 (en) | 1983-03-23 |
| FR2521447B1 (en) | 1986-02-21 |
| BR8300711A (en) | 1983-11-16 |
| FR2521447A1 (en) | 1983-08-19 |
| BE895793A (en) | 1983-05-30 |
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