JPS6350061B2 - - Google Patents
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- Publication number
- JPS6350061B2 JPS6350061B2 JP12364584A JP12364584A JPS6350061B2 JP S6350061 B2 JPS6350061 B2 JP S6350061B2 JP 12364584 A JP12364584 A JP 12364584A JP 12364584 A JP12364584 A JP 12364584A JP S6350061 B2 JPS6350061 B2 JP S6350061B2
- Authority
- JP
- Japan
- Prior art keywords
- dust
- main body
- dust collection
- gas
- collected
- 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
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- 239000000428 dust Substances 0.000 claims description 168
- 239000012717 electrostatic precipitator Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000005686 electrostatic field Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、装置本体内に狭極間の集塵通路が少
なくとも一以上並設されて成る静電集塵装置にお
ける捕集ダストの回収方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for collecting collected dust in an electrostatic precipitator in which at least one dust collection passage between narrow electrodes is arranged in parallel in the device main body. Regarding.
装置本体内に狭極間の集塵通路を多数並設して
成る静電集塵装置は、集塵通路内のダスト捕集用
静電界を数KV〜数十KV程度の比較的低い電圧
で構成することができると共に、当該静電界が構
成された集塵通路へのダスト含有ガスの供給を５
〜10ｍ／secという高速で行うことができ、その
装置価格及び維持管理費の低減化と装置規模の小
型化を図ることが可能であるから、処理風量が大
きく且つ設置スペースに厳しい制約のあるトンネ
ル内等のダスト発生現場に好適な集塵装置として
近年特に注目されている。
An electrostatic precipitator, which consists of a large number of dust collection passages between narrow poles arranged in parallel within the main body of the device, can control the electrostatic field for dust collection in the dust collection passages at a relatively low voltage of several kilovolts to several tens of kilovolts. and the supply of dust-containing gas to the dust collection passage in which the electrostatic field is configured.
The process can be performed at a high speed of ~10m/sec, reducing the equipment price and maintenance costs, and reducing the size of the equipment, so it can be used in tunnels with large processing air volumes and severe restrictions on installation space. In recent years, it has attracted particular attention as a dust collector suitable for dust-generating sites such as indoors.
ところで、この種の集塵装置は、例えば実開昭
48−39565号公報に記載されたように、両端にガ
ス体の流入口と流出口が開口された装置本体内に
一定の狭い間隔で多数の集塵極板を並設して狭極
間の集塵通路が設けられており、この集塵通路内
に捕集されたダストは、スクレーパーやブラシ等
の摺接部材で機械的に叩き落として除去され、除
去されたダストは、装置本体の底部に設けられた
ホツパ内に自重で落下堆積するように成されてい
る。 By the way, this type of dust collector is, for example,
As described in Publication No. 48-39565, a large number of dust collecting electrode plates are arranged side by side at a certain narrow interval in the main body of the device, which has an inlet and an outlet for the gas at both ends. A dust collection passage is provided, and the dust collected in this dust collection passage is removed by mechanically knocking it off with a sliding member such as a scraper or brush, and the removed dust is removed from the bottom of the device body. It is designed so that it falls and accumulates under its own weight in a hopper provided in the hopper.
そして、ホツパ内に落下堆積したダストを回収
する手段としては、例えば特許第124181号及び特
許第168714号明細書に記載されたように、ホツパ
内に溜まつたダストを当該ホツパに供給される循
環気体流で吸引排出して装置本体外に設けられた
ダスト分離装置に送給する方法が知られている。 As a means for recovering the dust that has fallen and accumulated in the hopper, for example, as described in Patent No. 124181 and Patent No. 168714, there is a circulation system in which the dust accumulated in the hopper is supplied to the hopper. A method is known in which dust is suctioned and discharged using a gas flow and sent to a dust separation device provided outside the main body of the device.
しかしながら、上記のように集塵通路から除去
したダストを自重により一旦ホツパ内に落下堆積
させてから回収する場合には、軽くて微細なダス
トが装置本体内を浮遊し、除去したダストの総て
がホツパ内に沈降するまで長時間を要するから、
迅速な回収を行うことができないという問題があ
つた。
However, when the dust removed from the dust collection passage is collected by falling and depositing in the hopper due to its own weight as described above, light and fine dust floats inside the device body, and all of the removed dust is collected. It takes a long time for it to settle in the hopper,
There was a problem that prompt collection could not be carried out.
また、装置本体の底部にダスト回収用のホツパ
を設けた場合には、当該装置本体が大型化して設
置スペースが非常に大きくなり、トンネル内など
に設置することができないという問題があつた。 Further, when a hopper for collecting dust is provided at the bottom of the device body, there is a problem that the device body becomes large and requires a very large installation space, making it impossible to install it inside a tunnel or the like.
更に、特許第124181号明細書に記載されたよう
に、ホツパ内に落下堆積したダストをホツパの下
端に流通せられる循環気体流によつて排出する場
合には、ホツパの上端側に堆積したダストがホツ
パ内にブリツジを形成して排出不能になるという
欠点があつた。 Furthermore, as described in Patent No. 124181, when the dust that has fallen and accumulated in the hopper is discharged by the circulating gas flow flowing through the lower end of the hopper, the dust that has accumulated on the upper end of the hopper can be removed. The disadvantage was that a bridge formed in the hopper, making it impossible to eject the hopper.
また、このような欠点を無くするためには、特
許第168714号明細書に記載されたように、ホツパ
の上端側に循環気体流を流通させると共にホツパ
の下端側から給水して、ホツパ内に堆積したダス
トを水面に浮かせて循環気体流の流通位置まで押
し上げなければならないという面倒があつた。 In addition, in order to eliminate such drawbacks, as described in Patent No. 168714, circulating gas flow is passed through the upper end of the hopper, and water is supplied from the lower end of the hopper to fill the inside of the hopper. There was the trouble of having to float the accumulated dust on the water surface and push it up to the position where the circulating gas flow circulated.
なお、狭極間の集塵通路に噴射液体流を吹きつ
けて捕集ダストを除去する場合には、除去したダ
ストが装置本体内を長時間浮遊するという問題は
生じないが、液体流中に含有されたダストの分離
回収が極めて困難となり、廃液対策に多大な設備
費を要すると同時に、水源を必要とすることから
設置場所も制約されるという欠点があつた。 Note that when removing the collected dust by spraying a jet of liquid into the dust collection passage between the narrow electrodes, the problem of the removed dust remaining suspended in the device body for a long time does not occur, but It is extremely difficult to separate and collect the dust contained therein, and a large amount of equipment costs are required to deal with the waste liquid. At the same time, the installation location is also restricted due to the need for a water source.
したがつて、狭極間の集塵通路が並設された静
電集塵装置は、広極間のものに比べて種々の特長
を有しているものの、集塵通路から除去した捕集
ダストの回収の点において解決すべき重大な問題
が残されているため、トンネル集塵装置などに実
用化されるに至つていないのが現状である。 Therefore, although electrostatic precipitators in which dust collection passages between narrow poles are arranged side by side have various features compared to those with wide poles, the collected dust removed from the dust collection passages Currently, there are serious problems that need to be solved regarding the collection of dust, so it has not yet been put to practical use in tunnel dust collectors.
そこで本発明は、トンネル内のように処理風量
が大きく且つ設置スペースに厳しい制約のあるダ
スト発生現場においてその最適使用が期待できる
静電集塵装置の実用化を達成せんとするものであ
り、そのために狭極間の集塵通路から除去された
ダストを極めて容易に且つ確実に回収し得る方法
を提供することを目的とする。 Therefore, the present invention aims to achieve practical use of an electrostatic precipitator that can be expected to be optimally used in dust generating sites where the processing air volume is large and the installation space is severely restricted, such as in tunnels. It is an object of the present invention to provide a method by which dust removed from a dust collection passage between narrow electrodes can be collected very easily and reliably.
この目的を達成するために、本発明は、装置本
体内に狭極間の集塵通路が少なくとも一以上並設
されて成る静電集塵装置における捕集ダストの回
収方法であつて、まず、装置本体の両端側を閉鎖
してダスト含有ガスの流れを遮断すると共に高電
圧の供給を停止させ、次いで、このように密閉さ
れた装置本体内のガス体を前記集塵通路の一端側
から吸引して装置本体外に配設されたガス清浄機
構に送給し、当該ガス清浄機構を通じて清浄化さ
れたガス体を循環気体流として前記集塵通路の他
端側から装置本体内に再導入させると共に、前記
集塵通路のダスト捕集面に捕集されたダストを分
離除去させ、当該ダストが前記ダスト捕集面から
分離すると同時に、これを前記循環気体流中に混
入させてそのまま装置本体外に運び出し、装置本
体外に運び出したダストを前記ガス清浄機構に移
送して前記循環気体流中から分離回収することを
特徴とする。
In order to achieve this object, the present invention provides a method for collecting collected dust in an electrostatic precipitator in which at least one dust collection passage between narrow electrodes is arranged in parallel in the main body of the device, which first includes: Both ends of the device body are closed to cut off the flow of dust-containing gas and the supply of high voltage is stopped, and then the gas inside the device body sealed in this way is sucked from one end of the dust collection passage. The gas is then fed to a gas purification mechanism disposed outside the apparatus main body, and the purified gas is reintroduced into the apparatus main body from the other end of the dust collection passage as a circulating gas flow through the gas purification mechanism. At the same time, the dust collected on the dust collecting surface of the dust collecting passage is separated and removed, and at the same time as the dust is separated from the dust collecting surface, it is mixed into the circulating gas flow and directly removed from the main body of the apparatus. The dust carried out to the outside of the apparatus main body is transferred to the gas cleaning mechanism and separated and recovered from the circulating gas flow.
なお、本発明における前記狭極間の集塵通路と
は、極間距離が５〜60mm程度の間隔のものを総称
し、当該集塵通路を形成する一方の極には通常５
〜30KV程度の高電圧が印加され、これにより他
方の極との間にダスト捕集用の静電界が構成され
る。 In addition, the dust collection passage between the narrow poles in the present invention is a general term for those with an interval of about 5 to 60 mm between the poles, and one pole forming the dust collection passage usually has a diameter of 5 mm.
A high voltage of ~30KV is applied, which creates an electrostatic field for dust collection between it and the other pole.
また、前記集塵通路を形成する一対の電極の組
み合わせは、平板対平板あるいは線対平板が一般
的である。なお、平板対平板の組み合わせを採用
する場合には、線対平板の場合と異なり集塵通路
内での荷電作用が殆ど行われないから、排ガス中
のダストを集塵通路内に供給する前に予めイオン
化しておくことが必要である。このイオン化のた
めの荷電域は、荷電電極と対極との間に積極的且
つ安定なコロナ放電が発生するものであれば任意
の構造のものを何ら制限なく採用し得る。 Further, the combination of the pair of electrodes forming the dust collecting passage is generally a flat plate to flat plate or a wire to flat plate. In addition, when adopting a flat plate-to-flat combination, unlike the case of wire-to-flat plates, there is almost no charging effect in the dust collection passage, so before the dust in the exhaust gas is supplied into the dust collection passage, It is necessary to ionize it in advance. The charged region for ionization may have any structure without any restriction as long as a positive and stable corona discharge is generated between the charged electrode and the counter electrode.
また、前記荷電域を構成するための荷電電極は
１mm以下の導電性細線か、あるいは対極に対向す
る荷電電極面を尖鋭化した導電性部材が好ましく
採用される。 The charging electrode for forming the charging region is preferably a conductive thin wire of 1 mm or less, or a conductive member having a sharpened charging electrode surface facing the counter electrode.
本発明方法によれば、両端側を閉鎖して密閉さ
れた装置本体内のガス体を、集塵通路の一端側か
ら吸引し、装置本体外に設けられたガス清浄機構
を通じて清浄化した後、集塵通路の他端側から装
置本体内に循環気体流として再導入させると共
に、集塵通路のダスト捕集面に捕集されたダスト
を分離除去させる。
According to the method of the present invention, the gas inside the device body whose both ends are closed and sealed is sucked from one end side of the dust collection passage, and after being cleaned through the gas cleaning mechanism provided outside the device body, The circulating gas flow is reintroduced into the device main body from the other end of the dust collecting passage, and the dust collected on the dust collecting surface of the dust collecting passage is separated and removed.
これにより、集塵通路のダスト捕集面から分離
除去されたダストが、装置本体内に再導入せられ
て集塵通路を通過する循環気体流中に混入され、
当該循環気体流によつてそのまま装置本体外に運
び出される。 As a result, the dust separated and removed from the dust collection surface of the dust collection passage is reintroduced into the device main body and mixed into the circulating gas flow passing through the dust collection passage.
The circulating gas flow carries the gas out of the main body of the apparatus as it is.
したがつて、ダスト捕集面から除去されたダス
トが装置本体内に長時間浮遊することがなく、ダ
ストの回収作業を短時間で迅速に行うことができ
る。また、装置本体の底部にダスト回収用のホツ
パを設ける必要がなく、装置全体の設置スペース
が大幅に低減される。 Therefore, the dust removed from the dust collection surface does not remain suspended in the apparatus main body for a long time, and the dust collection operation can be performed quickly and in a short period of time. Further, there is no need to provide a hopper for collecting dust at the bottom of the device body, and the installation space of the entire device is significantly reduced.
以下、本発明を図面に示す具体的な実施例に基
づいて説明する。
Hereinafter, the present invention will be explained based on specific embodiments shown in the drawings.
図は、装置本体１内に狭極間の集塵通路２が少
なくとも一以上並設されて成る静電集塵装置にお
ける捕集ダストの回収方法の一例を示す一部系統
的断面図である。 The figure is a partial systematic cross-sectional view showing an example of a method for collecting collected dust in an electrostatic precipitator in which at least one dust collection passage 2 between narrow electrodes is arranged in parallel in the main body 1 of the device.
集塵通路２は、大地電位に維持される平板状集
塵電極３と、当該集塵電極３に約10mm程度の間隔
で離隔対向し且つ８〜10KV程度の高電圧が高電
圧発生装置４から高電圧ケーブル５を介して供給
される平板状高電位維持電極６とから形成されて
いる。 The dust collection passage 2 includes a flat dust collection electrode 3 maintained at ground potential, which faces the dust collection electrode 3 at an interval of approximately 10 mm, and receives a high voltage of approximately 8 to 10 KV from a high voltage generator 4. A flat high potential sustaining electrode 6 is supplied via a high voltage cable 5.
また、このように集塵通路２を平板対平板の組
み合わせで形成したことにより、当該集塵通路２
の前方側に直径約0.8mm程度の細線状荷電電極７
と、当該荷電電極７から10〜20mm程度離隔対向し
且つ大地電位に維持された格子状の対極８とで構
成される荷電域９が設けられている。そして、前
記細線状荷電電極７には、５〜20KV程度の高電
圧が高電圧発生装置１０から高電圧ケーブル１１
を介して供給されるように成されている。 In addition, by forming the dust collection passage 2 by a combination of flat plates in this way, the dust collection passage 2
A thin wire-shaped charged electrode 7 with a diameter of about 0.8 mm is placed on the front side of the
and a grid-shaped counter electrode 8 which faces the charging electrode 7 at a distance of about 10 to 20 mm and is maintained at ground potential. A high voltage of about 5 to 20 KV is applied to the thin wire charging electrode 7 from the high voltage cable 11 from the high voltage generator 10.
It is designed to be supplied via.
そして、装置本体１のガス導入側及びガス排出
側には、集塵通路２内に堆積した捕集ダストを除
去回収する際に装置本体１内を密閉して集塵通路
２内へのダスト含有ガスの供給を遮断するための
ダンパ１２及び１３が夫々配設されている。 Then, on the gas introduction side and the gas discharge side of the device main body 1, the inside of the device main body 1 is sealed and the dust contained in the dust collection path 2 is sealed when the collected dust accumulated in the dust collection path 2 is removed and collected. Dampers 12 and 13 are provided to cut off the gas supply, respectively.
また、装置本体１には、ダンパ１２及び１３を
閉じて密閉された装置本体１内のガス体を集塵通
路２の一端側から吸引して装置本体１外に配設さ
れたバツグフイルタ、電気集塵機、サイクロン等
のガス清浄機構１４に送給し、当該ガス清浄機構
１４を通じて清浄化されたガス体を循環気体流と
して集塵通路２の他端側から装置本体１内に再導
入させる循環通路１５が配設されている。 The apparatus body 1 also includes a bag filter and an electrostatic precipitator, which are disposed outside the apparatus body 1 and suck the gas inside the apparatus body 1, which is sealed by closing the dampers 12 and 13, from one end side of the dust collection passage 2. , a circulation passage 15 that supplies the gas to a gas purification mechanism 14 such as a cyclone, and reintroduces the gas purified through the gas purification mechanism 14 into the apparatus main body 1 from the other end of the dust collection passage 2 as a circulating gas flow. is installed.
循環通路１５の径路上には適宜な場所に前記循
環気体流を発生させるフアンあるいはブロアー等
の循環気体流形成機構１６が介装され、また循環
通路１５の各端部側には夫々ダンパ１７及び１８
が配設されて捕集ダストの除去回収時にのみ集塵
通路２内のガス体を循環流動させるように成され
ている。 A circulating gas flow forming mechanism 16 such as a fan or a blower for generating the circulating gas flow is installed at an appropriate location on the path of the circulation passage 15, and a damper 17 and a damper 17 are provided at each end of the circulation passage 15, respectively. 18
is arranged so that the gas in the dust collection passage 2 is circulated and flowed only when the collected dust is removed and collected.
また、本実施例においては、循環通路１５の他
端が、前記循環気体流を集塵通路２内の平板状集
塵電極３及び平板状高電位維持電極６から成るダ
スト捕集面に向けて噴射させる噴射機構１９に接
続され、当該噴射機構１９から噴射される循環気
体流によつて前記ダスト捕集面に捕集されたダス
トを分離除去させるように成されている。 Further, in this embodiment, the other end of the circulation passage 15 directs the circulating gas flow toward the dust collection surface consisting of the flat dust collection electrode 3 and the flat high potential sustaining electrode 6 in the dust collection passage 2. It is connected to an injection mechanism 19 for ejecting, and the dust collected on the dust collection surface is separated and removed by the circulation gas flow ejected from the injection mechanism 19.
装置本体１の低部２０には上面がパンチングメ
タル、金網、格子状部材等の多孔性部材２１によ
つて区切られたダスト回収槽２２が配設され、当
該ダスト回収槽２２にバイブレータ２３が取り付
けられている。 A dust collection tank 22 whose upper surface is partitioned by a porous member 21 such as a punched metal, a wire mesh, or a grid-like member is provided in the lower part 20 of the device main body 1, and a vibrator 23 is attached to the dust collection tank 22. It is being
なお、２４は、循環通路１５内における気体の
吸引量と排出量（噴射量）とのバランスを調整す
るための制御弁である。 Note that 24 is a control valve for adjusting the balance between the amount of gas sucked into the circulation passage 15 and the amount of gas discharged (injection amount).
以上が、図面に示す静電集塵装置の概略構成で
あり、次に本発明方法について説明する。 The above is the schematic configuration of the electrostatic precipitator shown in the drawings, and next, the method of the present invention will be explained.
トンネル内などにおいて生ずるダスト含有ガス
がダクトを通じて静電集塵装置の装置本体１内に
導入されて平板状集塵電極３及び平板状高電位維
持電極６から成る狭極間の集塵通路２内に供給さ
れると、これら各電極３及び６にガス体中に含ま
れたダストが捕集されると同時に、清浄化された
ガス体が装置本体１から外部に排出せられること
となる。 Dust-containing gas generated in a tunnel or the like is introduced into the device main body 1 of the electrostatic precipitator through a duct, and is introduced into the dust collection passage 2 between the narrow electrodes consisting of the flat dust collection electrode 3 and the flat high potential sustaining electrode 6. When the dust contained in the gas body is supplied to each of the electrodes 3 and 6, the dust contained in the gas body is collected, and at the same time, the cleaned gas body is discharged from the main body 1 of the apparatus to the outside.
ここで、装置のダスト捕集効率を常に良好に維
持するためには、前記の如くダスト捕集面となる
各電極３及び６に堆積したダストを定期的に除去
することが必要となる。 Here, in order to always maintain good dust collection efficiency of the device, it is necessary to periodically remove the dust deposited on each electrode 3 and 6, which serves as the dust collection surface, as described above.
この場合には、まず、装置本体１のガス導入側
とガス排出側に夫々配設されたダンパ１２，１３
を閉鎖してダスト含有ガスの流れを遮断すると共
に、高電圧発生装置４，１０の作動を停止させて
ダスト捕集面となる高電位維持電極６及び細線状
荷電電極７への高電圧の供給を停止させる。 In this case, first, dampers 12 and 13 are installed on the gas introduction side and the gas discharge side of the device main body 1, respectively.
is closed to cut off the flow of dust-containing gas, and at the same time, the operation of the high-voltage generators 4 and 10 is stopped to supply high voltage to the high-potential maintaining electrode 6 and the thin wire-shaped charging electrode 7, which serve as dust-collecting surfaces. to stop.
なお、高電圧の供給停止は、高電圧発生装置４
及び１０の入力側又は出力側を制御することによ
つて行う。 Note that the high voltage supply is stopped when the high voltage generator 4
and 10 by controlling the input side or the output side.
次いで、循環通路１５の各端部に配設されたダ
ンパ１７，１８を開放すると同時に、当該循環通
路１５に介装された循環気体流形成機構１６を作
動させて、ダンパ１２，１３を閉じて密閉された
装置本体１内に存在するガス体を集塵通路２の一
端側から吸引し、吸引したガス体を装置本体１の
外部に配設されたガス清浄機構１４に送給する。 Next, the dampers 17 and 18 disposed at each end of the circulation passage 15 are opened, and at the same time, the circulation gas flow forming mechanism 16 interposed in the circulation passage 15 is operated to close the dampers 12 and 13. The gas present in the sealed device main body 1 is sucked from one end side of the dust collecting passage 2, and the sucked gas is sent to a gas cleaning mechanism 14 disposed outside the device main body 1.
そして、当該ガス清浄機構１４を通じて清浄化
されたガス体を、集塵通路２の他端側に配設され
た噴射機構１９に送給して当該噴射機構１９の噴
射口２５から集塵通路２のダスト捕集面に向けて
勢い良く噴射させ、循環気体流として装置本体１
内に再導入させる。 Then, the gas purified through the gas cleaning mechanism 14 is fed to the injection mechanism 19 disposed on the other end side of the dust collection passage 2, and from the injection port 25 of the injection mechanism 19 to the dust collection passage 2. The device body 1 is injected vigorously towards the dust collection surface of the device body 1 as a circulating gas flow.
be reintroduced within.
このように集塵通路２の他端側から装置本体１
内に再導入される循環気体流は、集塵通路２のダ
スト捕集面に捕集されて堆積したダストを払拭さ
せ得る流速を有し、ダスト捕集面からダストを分
離除去させると同時に、分離したダストを当該循
環気体流中に混入させてそのまま集塵通路２の一
端側から循環通路１５を通つて装置本体１外に運
び出す。そして、装置本体１外に運び出したダス
トをガス清浄機構１４に移送して当該循環気体流
中から分離回収させる。 In this way, from the other end side of the dust collection passage 2,
The circulating gas flow reintroduced into the dust collection passage 2 has a flow velocity that can wipe away the dust collected and accumulated on the dust collection surface of the dust collection passage 2, and at the same time separate and remove the dust from the dust collection surface. The separated dust is mixed into the circulating gas flow and carried as it is from one end of the dust collection passage 2 through the circulation passage 15 to the outside of the apparatus main body 1. Then, the dust carried out of the apparatus main body 1 is transferred to the gas cleaning mechanism 14 and separated and recovered from the circulating gas flow.
すなわち、本発明方法によれば、集塵通路２の
ダスト捕集面から除去されたダストが、装置本体
１内に再導入して集塵通路２を通過する循環気体
流中に混入されて当該循環気体流によつて迅速且
つ確実に装置本体１外に運び出される。したがつ
て、従来のようにダスト捕集面から除去したダス
トが何時までも装置本体１内に浮遊することがな
くなり、ダストの回収時間が著しく短縮される。 That is, according to the method of the present invention, the dust removed from the dust collection surface of the dust collection passage 2 is reintroduced into the device main body 1 and mixed into the circulating gas flow passing through the dust collection passage 2. It is quickly and reliably carried out of the apparatus main body 1 by the circulating gas flow. Therefore, the dust removed from the dust collection surface does not remain floating in the device main body 1 for any length of time as in the conventional case, and the time for collecting dust is significantly shortened.
また、除去したダストを循環気体流中に混入さ
せてそのまま装置本体１外に運び出すから、装置
本体１には従来のようにダスト回収用のホツパを
設ける必要がなくなり、装置本体１を小型化して
設置スペースの低減を図ることができる。なお、
実施例においては、装置本体１の低部２０に上面
が多孔性部材２１で区切られたダスト回収槽２２
を配設して、自重により沈降して当該回収槽２２
内に回収されたダストをバイブレータ２３の振動
作用によつて一箇所に集めた後に適宜外部に排出
させるようにしているが、本発明においては、装
置本体１内に導入される循環気体流の流速を適宜
調整して、装置本体１の低部２０に沈降するダス
トを循環気体流により循環通路１５に導いて吸引
することで、図示したダスト回収槽２２の設置も
省略できるから、装置本体１を著しく小型化する
ことができる。 In addition, since the removed dust is mixed into the circulating gas flow and carried out of the device main body 1 as it is, there is no need to provide a hopper for collecting dust in the device main body 1 as in the past, and the device main body 1 can be made smaller. The installation space can be reduced. In addition,
In the embodiment, a dust collection tank 22 whose upper surface is partitioned by a porous member 21 is provided in the lower part 20 of the device main body 1.
is placed in the collection tank 22 and settles due to its own weight.
The dust collected inside is collected in one place by the vibrating action of the vibrator 23 and then discharged to the outside as appropriate. By appropriately adjusting the dust settling in the lower part 20 of the apparatus main body 1 and guiding the dust settling in the lower part 20 of the apparatus main body 1 to the circulation passage 15 using a circulating gas flow and suctioning it, the installation of the illustrated dust collection tank 22 can also be omitted. It can be significantly downsized.
また、実施例では、循環通路１５内のガス体を
集塵通路２の他端側に配設された噴射機構１９に
送給して、これをダスト捕集面に向けて噴射させ
ることにより捕集ダストの除去にも用いている
が、本発明方法では噴射機構１９の代わりにスク
レーパー、ブラシ等の摺接部材によつて捕集ダス
トを除去したり、あるいは前記の如き噴射機構に
対して別途配設されたエア供給源からダスト吹掃
用のエアを供給して捕集ダストを除去するように
してもよい。 Further, in the embodiment, the gas in the circulation passage 15 is sent to the injection mechanism 19 disposed at the other end of the dust collection passage 2, and the gas is collected by injecting it toward the dust collection surface. Although it is also used to remove collected dust, in the method of the present invention, the collected dust is removed by a sliding member such as a scraper or a brush instead of the injection mechanism 19, or a separate part is provided for the above-mentioned injection mechanism. The collected dust may be removed by supplying dust-blowing air from a disposed air supply source.
また、実施例では、集塵通路２を平板状集塵電
極３と同じく平板状の高電位維持電極６との間に
形成した場合について説明したが、本発明はこれ
に限らず、例えば平板状集塵電極３と、当該集塵
電極３に10mm程度の間隔で離隔対向し且つ８〜
10KV程度の高電圧が印加維持される直径１mm以
下、好ましくは0.8mm以下の細線状荷電電極とに
よつて形成する場合であつてもよい。 Further, in the embodiment, a case has been described in which the dust collecting passage 2 is formed between the flat dust collecting electrode 3 and the high potential maintaining electrode 6 which is also flat, but the present invention is not limited to this. The dust collecting electrode 3 and the part facing the dust collecting electrode 3 at a distance of about 10 mm, and
It may be formed by a thin wire-shaped charging electrode with a diameter of 1 mm or less, preferably 0.8 mm or less, to which a high voltage of about 10 KV is applied and maintained.
以上述べたように、本発明によれば、装置本体
内に配設した集塵通路のダスト捕集面から分離除
去されるダストが、ダスト捕集面から分離すると
同時に装置本体内に流通せられている循環気体流
中に混入されてそのまま装置本体外に運び出され
るから、ダスト捕集面から除去されたダストが装
置本体内に長時間浮遊することがなく、ダストの
回収作業を短時間で迅速に行うことができるとい
う大変優れた効果がある。
As described above, according to the present invention, the dust that is separated and removed from the dust collection surface of the dust collection passage provided in the device main body is distributed into the device main body at the same time as it is separated from the dust collection surface. Since the dust is mixed into the circulating gas flow and carried out of the device as it is, the dust removed from the dust collection surface does not remain suspended inside the device for a long time, making the dust collection work quick and short. It has a very good effect in that it can be done in many ways.
また、装置本体の底部にダスト回収用のホツパ
を設ける必要がなくなるから、装置全体の設置ス
ペースを従来よりも大幅に低減することができる
という優れた効果があり、設置スペースに制約が
あるトンネル内の静電集塵装置に適用してその設
備費を著しく低減することができる。 In addition, since there is no need to provide a hopper for collecting dust at the bottom of the device, the installation space of the entire device can be significantly reduced compared to conventional methods, which is an excellent advantage, and can be used in tunnels where installation space is limited. It can be applied to an electrostatic precipitator to significantly reduce the equipment cost.
図は、本発明による静電集塵装置における捕集
ダストの回収方法の一例を示す一部系統的断面図
である。
符号の説明、１……装置本体、２……集塵通
路、３……集塵電極、４……高電圧発生装置、６
……高電位維持電極、１０……高電圧発生装置、
１２，１３……ダンパ、１４……ガス清浄機構、
１５……循環通路、１６……循環気体流形成機
構、１９……噴射機構。
The figure is a partial systematic sectional view showing an example of a method for collecting collected dust in an electrostatic precipitator according to the present invention. Explanation of symbols, 1...Device body, 2...Dust collection passage, 3...Dust collection electrode, 4...High voltage generator, 6
...High potential sustaining electrode, 10...High voltage generator,
12, 13... damper, 14... gas cleaning mechanism,
15... Circulation passage, 16... Circulating gas flow forming mechanism, 19... Injection mechanism.
Claims (1)
一以上並設されて成る静電集塵装置における捕集
ダストの回収方法であつて、 (a) まず、装置本体の両端側を閉鎖してダスト含
有ガスの流れを遮断すると共に高電圧の供給を
停止させ、 (b) 次いで、このように密閉された装置本体内の
ガス体を前記集塵通路の一端側から吸引して装
置本体外に配設されたガス清浄機構に送給し、
当該ガス清浄機構を通じて清浄化されたガス体
を循環気体流として前記集塵通路の他端側から
装置本体内に再導入させると共に、前記集塵通
路のダスト捕集面に捕集されたダストを分離除
去させ、 (c) 当該ダストが前記ダスト捕集面から分離する
と同時に、これを前記循環気体流中に混入させ
てそのまま装置本体外に運び出し、 (d) 装置本体外に運び出したダストを前記ガス清
浄機構に移送して前記循環気体流中から分離回
収する ことを特徴とする静電集塵装置における捕集ダス
トの回収方法。 ２ 前記ダスト捕集面に捕集されたダストを、ガ
ス体又はエアの噴射によつて分離除去させる前記
特許請求の範囲第１項記載の静電集塵装置におけ
る捕集ダストの回収方法。 ３ 前記ダスト捕集面に捕集されたダストを、ス
クレーパー又はブラシで叩き落として分離除去さ
せる前記特許請求の範囲第１項記載の静電集塵装
置における捕集ダストの回収方法。[Scope of Claims] 1. A method for collecting collected dust in an electrostatic precipitator in which at least one dust collection passage between narrow electrodes is arranged in parallel in the device main body, comprising: (a) first, the device main body; (b) Then, the gas body inside the thus sealed device main body is passed from one end side of the dust collection passage to cut off the flow of the dust-containing gas and stop the supply of high voltage. The gas is sucked and delivered to the gas purification mechanism installed outside the main body of the device.
The gas purified through the gas cleaning mechanism is reintroduced into the apparatus main body from the other end of the dust collection passage as a circulating gas flow, and the dust collected on the dust collection surface of the dust collection passage is removed. (c) At the same time as the dust is separated from the dust collection surface, it is mixed into the circulating gas flow and carried out of the apparatus main body as it is; (d) The dust carried out of the apparatus main body is removed from the apparatus main body. A method for collecting collected dust in an electrostatic precipitator, characterized in that the dust is separated and collected from the circulating gas stream by being transferred to a gas cleaning mechanism. 2. A method for collecting dust collected in an electrostatic precipitator according to claim 1, wherein the dust collected on the dust collecting surface is separated and removed by jetting a gas or air. 3. A method for collecting collected dust in an electrostatic precipitator according to claim 1, wherein the dust collected on the dust collecting surface is separated and removed by being scraped off with a scraper or a brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59123645A JPS6041559A (en) | 1984-06-18 | 1984-06-18 | Process for recovering collected dust in electrostatic dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59123645A JPS6041559A (en) | 1984-06-18 | 1984-06-18 | Process for recovering collected dust in electrostatic dust collector |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52059336A Division JPS5941776B2 (en) | 1977-05-24 | 1977-05-24 | Collected dust removal method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6041559A JPS6041559A (en) | 1985-03-05 |
| JPS6350061B2 true JPS6350061B2 (en) | 1988-10-06 |
Family
ID=14865718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59123645A Granted JPS6041559A (en) | 1984-06-18 | 1984-06-18 | Process for recovering collected dust in electrostatic dust collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6041559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785372A (en) * | 2014-06-16 | 2015-07-22 | 山东盛华投资有限责任公司 | Dust collection electrode back-flushing filtering electrostatic precipitator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4817058B2 (en) * | 2006-03-14 | 2011-11-16 | 新東工業株式会社 | Pre-box device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS528577A (en) * | 1975-07-09 | 1977-01-22 | Mitsubishi Electric Corp | Electrostatic dust collector for removing weld fume |
-
1984
- 1984-06-18 JP JP59123645A patent/JPS6041559A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS528577A (en) * | 1975-07-09 | 1977-01-22 | Mitsubishi Electric Corp | Electrostatic dust collector for removing weld fume |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785372A (en) * | 2014-06-16 | 2015-07-22 | 山东盛华投资有限责任公司 | Dust collection electrode back-flushing filtering electrostatic precipitator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6041559A (en) | 1985-03-05 |
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