JP4759773B2 - Particle packed bed dust collector - Google Patents

Particle packed bed dust collector Download PDF

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JP4759773B2
JP4759773B2 JP2005207691A JP2005207691A JP4759773B2 JP 4759773 B2 JP4759773 B2 JP 4759773B2 JP 2005207691 A JP2005207691 A JP 2005207691A JP 2005207691 A JP2005207691 A JP 2005207691A JP 4759773 B2 JP4759773 B2 JP 4759773B2
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弘 瀬戸
耀二 中島
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株式会社 セテック
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本発明は、内燃機関あるいは外燃機関から発生する排ガス中の粉塵、特に粒子径２.５μｍ以下の微粒子を効果的に捕集・除去する集塵装置に関するものである。   The present invention relates to a dust collector that effectively collects and removes dust in exhaust gas generated from an internal combustion engine or an external combustion engine, particularly fine particles having a particle diameter of 2.5 μm or less.

従来、ディーゼル機関の排気ガス中のすす除去には無機質の多孔板フィルターが利用されているが、その微粒子捕集能力には限界があり、また目詰まり等による定期的な保守点検を行う必要がある等、メンテナンスが繁雑であるという問題点があった。また、大型ボイラーの燃焼排ガスの集塵には電気集塵器が広く採用されているが、１μｍ以下のサブミクロン級微粒子の捕集は困難であった。   Conventionally, inorganic perforated plate filters have been used to remove soot in the exhaust gas of diesel engines, but their particulate collection capacity is limited, and regular maintenance inspections due to clogging etc. are necessary. There was a problem that maintenance was complicated. An electric dust collector has been widely used for collecting combustion exhaust gas from large boilers, but it has been difficult to collect submicron class fine particles of 1 μm or less.

また、本発明に類するものとして、粒子充填層を移動層として集塵装置に適用したものもあるが、粒子充填層による集塵においてもサブミクロン級の粒子の集塵は困難であった。
特開２００１−１２９３３８号公報 特許第３０２８４６６号公報 In addition, there is one similar to the present invention in which a particle packed bed is applied to a dust collector as a moving bed, but it is difficult to collect particles of submicron class even when collecting particles with the particle packed bed.
JP 2001-129338 A Japanese Patent No. 3028466

従来の技術にあっては次のような問題点を有している。
ディーゼル機関の排ガス中のすす等の微粒子除去には、無機質の多孔板フィルターを用いたものが実用化されている。しかし、フィルターでは人間の心肺機能に弊害の大きい粒子径２.５μｍ以下の微粒子の捕集には効果が不充分であるうえ、フィルターにすす等の微粒子が堆積するため、定期的にフィルターを交換する必要がある。また、微粒子除去装置が設置されているものもあるが、保守上の繁雑さやコストが高い等の問題点があり、その普及を阻害している。 The conventional technology has the following problems.
In order to remove fine particles such as soot in the exhaust gas of a diesel engine, those using an inorganic porous plate filter have been put into practical use. However, the filter is not sufficient for collecting particles with a particle size of 2.5 μm or less, which has a large negative effect on human cardiopulmonary function, and soot and other particles accumulate on the filter. There is a need to. Some of them are equipped with a fine particle removing device, but there are problems such as complexity of maintenance and high cost, which hinders their spread.

ボイラーの場合、燃焼の際に発生する排ガスの集塵装置として電気集塵器が普及しているが、電気集塵器の集塵性能においてもサブミクロン級の集塵が困難であり、また、粒子充填層を移動層とすることにより集塵を行う集塵装置においても同様の問題点を有している。   In the case of boilers, electrostatic precipitators are prevalent as dust collectors for exhaust gas generated during combustion, but submicron-level dust collection is difficult even in the precipitator performance of the precipitator, A dust collector that collects dust by using a particle packed bed as a moving bed also has similar problems.

従来の技術が有する上記の様な問題点に鑑み、本発明の目的とするところは、内燃機関あるいは外燃機関の排ガス中に含まれるすす・粉塵あるいは飛灰等のサブミクロン級の微粒子の捕集を可能にするための粒子充填層フィルターを有する粒子充填層集塵装置を提供することである。   In view of the above-mentioned problems of the prior art, the object of the present invention is to capture submicron-class fine particles such as soot, dust or fly ash contained in the exhaust gas of an internal combustion engine or an external combustion engine. It is to provide a particle packed bed dust collector having a particle packed bed filter for enabling collection.

上記目的を達成するために、本発明は次記のようになるものである。
請求項１に係る粒子充填層集塵装置は、内燃機関あるいは外燃機関の排ガス中の未燃分すす及び灰分等の微粒子の集塵装置として構成された粒子充填層集塵装置において、
通気性を有する多孔板である排ガス流入面と排ガス流出面との間に粒子充填層を具備しかつ該粒子充填層内の充填粒子間に静電界を加えるべく該排ガス流入面と該排ガス流出面との間に直流電圧を印加される粒子充填層フィルターと、
高濃度の単極性イオンを発生することにより前記排ガス流入面に流入する前に排ガス中の微粒子に対し単極性の電荷を与えるべく、該排ガス流入面より前段に設置されかつ直流高電圧を重畳した交流電圧を印加されるバリヤ放電管の放電電極と、を備えたことを特徴とする。 In order to achieve the above object, the present invention is as follows.
The particle packed bed dust collector according to claim 1, wherein the particle packed bed dust collector is configured as a dust collector of fine particles such as unburned soot and ash in exhaust gas of an internal combustion engine or an external combustion engine.
An exhaust gas inflow surface and an exhaust gas outflow surface which are provided with a particle packed layer between an exhaust gas inflow surface and an exhaust gas outflow surface which are perforated plates and which apply an electrostatic field between the packed particles in the particle packed layer A particle packed bed filter to which a direct current voltage is applied, and
In order to give a unipolar charge to the fine particles in the exhaust gas before flowing into the exhaust gas inflow surface by generating a high concentration of unipolar ions, it is installed in front of the exhaust gas inflow surface and a DC high voltage is superimposed. And a discharge electrode of a barrier discharge tube to which an alternating voltage is applied .

請求項２に係る粒子充填層集塵装置は、請求項１において、集塵された微粒子を焼却するべく前記粒子充填層内に設置された電気ヒーターをさらに備え、かつ、前記バリヤ放電管の放電電極に印加される交流電圧と重畳される直流高電圧が、オゾンを発生するべく負極性であることを特徴とする。 The particle packed bed dust collector according to claim 2 further comprises an electric heater installed in the particle packed bed in order to incinerate the collected fine particles, and the discharge of the barrier discharge tube according to claim 1. The high DC voltage superimposed on the AC voltage applied to the electrode is negative in order to generate ozone .

請求項３に係る粒子充填層集塵装置は、請求項１又は２において、前記粒子充填層内に充填された粒子を振動可能として該粒子間に捕集された微粒子と該粒子との固着を防止するべく、前記粒子充填層内の上部に非粒子空間を設けたことを特徴とする。
A particle packed bed dust collector according to claim 3 is the particle packed bed dust collector according to claim 1 or 2, wherein the particles packed in the particle packed bed are made vibrable and the fine particles collected between the particles are fixed to each other. In order to prevent this, a non-particle space is provided in the upper part of the particle packed bed .

請求項４に係る粒子充填層集塵装置は、請求項１〜３のいずれかにおいて、前記排ガス流入面に流入する前に排ガス中の微粒子に対し単極性の電荷を与えるべく、前記バリヤ放電管の放電電極に替えて、該排ガス流入面より前段に設置された電気集塵機を備えたことを特徴とする。 A particle packed bed dust collector according to a fourth aspect of the present invention is the barrier discharge tube according to any one of the first to third aspects, wherein the barrier discharge tube is configured to give a unipolar charge to the fine particles in the exhaust gas before flowing into the exhaust gas inflow surface. Instead of the discharge electrode, an electric dust collector installed in front of the exhaust gas inflow surface is provided .

本発明の粒子充填層集塵装置は、該粒子充填層フィルター内の粒子充填層に静電界を印加するとともに、該排ガス流入部に設置された微粒子荷電用の放電電極により該粒子充填層フィルター内に流入する排ガス中の微粒子が帯電するため、サブミクロン級の微粒子を９０％以上捕集し得る性能を有する。また、該粒子充填層フィルターを車輌搭載した場合、車輌走行時の振動により粒子充填層フィルターの粒子が揺動し、粒子とすす等の微粒子同士が固着することを防止できる。   The particle packed bed dust collector of the present invention applies an electrostatic field to the particle packed bed in the particle packed bed filter, and in the particle packed bed filter by a discharge electrode for charging fine particles installed in the exhaust gas inflow section. Since the fine particles in the exhaust gas flowing into the tank are charged, it has a performance capable of collecting 90% or more of submicron-class fine particles. Further, when the particle packed bed filter is mounted on a vehicle, it is possible to prevent the particles of the particle packed bed filter from oscillating due to vibrations when the vehicle travels, and to prevent particles such as soot from adhering to each other.

以下、実施例を示した図面を参照しつつ本発明の実施の形態を説明する。
粒子充填層に静電界を印加することより捕集性が向上することは特許文献２である特許第３０２８４６６号にも記載されているが、サブミクロン級粒子の捕集においては、その粒径が０.３〜０.５μｍ（代表粒径０.４μｍ）での捕集性能は排ガス中の微粒子の帯電の有無が捕集性能に支配的であることを検証した。 Hereinafter, embodiments of the present invention will be described with reference to the drawings showing examples.
It is also described in Patent No. 3028466, which is Patent Document 2, that the trapping property is improved by applying an electrostatic field to the particle packed layer. The collection performance at 0.3 to 0.5 μm (representative particle size: 0.4 μm) was verified that the presence or absence of electrification of fine particles in the exhaust gas is dominant to the collection performance.

図１は、その実測結果を静電界強度と捕集効率において微粒子の帯電量（ｑ＝３９.７ｅ 〜３２.３ｅ,ｑ＝０；ｅは電気素量で約１.６×１０−１９Ｃ）をパラメータとして示したものである。電界強度１ｋＶ／ｃｍ、層高６ｃｍ、充填粒子径３ｍｍ、帯電量ｑ＝３９.７ｅ〜３２.３ｅ、空塔速度０.５ｍ／ｓの場合、捕集効率は微粒子の平均粒径０.４μｍにおいて９８〜８８％であった。一方、帯電量(無)ｑ＝０の場合は２２％であった。 FIG. 1 shows the results of the actual measurement, in terms of electrostatic field strength and collection efficiency, the charge amount of fine particles (q = 39.7e-32.3e, q = 0; e is an elementary electric charge of about 1.6 × 10 −19 C). ) As a parameter. When the electric field strength is 1 kV / cm, the layer height is 6 cm, the packed particle diameter is 3 mm, the charge amount is q = 39.7e-32.3e, and the superficial velocity is 0.5 m / s, the collection efficiency is 0.4 μm for the average particle diameter of the fine particles. It was 98 to 88%. On the other hand, when the charge amount (none) q = 0, it was 22%.

図２は、粒子充填層高と捕集効率を粒子帯電量をパラメータとして示したものであるが、図１と同様に帯電量ｑ＝３９.７ｅとｑ＝３２.３ｅを比較すると、捕集効率では層高６ｃｍにおいて、前者では９７％、後者では８８％と捕集性能に差を生ずる。   FIG. 2 shows the particle packed bed height and the collection efficiency with the particle charge amount as a parameter. Similar to FIG. 1, the charge amount q = 39.7e and q = 32.3e are compared. In terms of efficiency, at a layer height of 6 cm, there is a difference in the collection performance of 97% for the former and 88% for the latter.

以上の実測結果に基づき発明した本発明の実施例を以下に説明する。本発明による粒子充填層集塵装置をディーゼル機関の排気ガスすす除去装置に適用したものを図３に示す。図３（ａ）は本発明による粒子充填層集塵装置を円筒形にした場合の側断面図、（ｂ）は（ａ）のＡ−Ａ断面図を示すものである。ここでは本発明による粒子充填層集塵装置を円筒形状としているが、特に形状は限定されるものではなく、例えば平板状であってもよい。
円筒形ケース１内には、側面が多孔質で通気性を有する２つの円筒管である外筒管（通電性電極）２ａ及び内筒管（通気性円管）２ｂが同軸上に二重に設置され、両円筒管間に誘電体とする粒子を充填して粒子充填層２ｃを形成し、これらによって成る粒子充填層フィルター２が円筒形ケース１内に設置される。粒子充填層フィルター２の両端には絶縁支持部３があり、粒子充填層２ｃを密閉している。円筒形ケース１の左右両端には排ガス流入口７ａ及び排ガス流出口７ｂが設けられ、排ガス流入口７ａは粒子充填層フィルター２の中心の空間に通じ、この空間が、排ガス流入口７ａから流入した排ガスが粒子充填層フィルター２に進入するための排ガス通過部４を形成する。 An embodiment of the present invention invented based on the above measurement results will be described below. FIG. 3 shows an application of the particle packed bed dust collector according to the present invention to an exhaust gas soot removing device of a diesel engine. 3A is a side sectional view when the particle packed bed dust collector according to the present invention is formed into a cylindrical shape, and FIG. 3B is a sectional view taken along line AA in FIG. Here, the particle packed bed dust collector according to the present invention has a cylindrical shape, but the shape is not particularly limited, and may be, for example, a flat plate shape.
In the cylindrical case 1, there are two outer cylindrical tubes (conductive electrodes) 2a and inner cylindrical tubes (breathable circular tubes) 2b that are porous on the side and have air permeability. The particle-filled layer 2c is formed by filling particles as dielectrics between the two cylindrical tubes, and the particle-filled layer filter 2 made of these particles is installed in the cylindrical case 1. There are insulating support portions 3 at both ends of the particle packed bed filter 2 to seal the particle packed bed 2c. An exhaust gas inlet 7a and an exhaust gas outlet 7b are provided at the left and right ends of the cylindrical case 1, and the exhaust gas inlet 7a leads to a space in the center of the particle packed bed filter 2, and this space flows into the exhaust gas inlet 7a. An exhaust gas passage part 4 for the exhaust gas to enter the particle packed bed filter 2 is formed.

排ガス中の微粒子は、排ガス通過部４を通過して内筒管２ｂ側の粒子充填層に堆積するため、内筒管２ｂの外周側に微粒子を焼却する電気ヒーター５が設置されている。また、粒子充填層２ｃ内の粒子は外筒管２ａに完全に拘束されないようにするため、粒子充填層２ｃ上部に非粒子空間である粒子充填層空間６を有している。該粒子充填層フィルター２を車輌に搭載する場合、走行時の振動により粒子は揺動し得るものとして、粒子充填層２ｃ内で粒子と微粒子とが固着することを防止できる。   Since the fine particles in the exhaust gas pass through the exhaust gas passage portion 4 and accumulate in the particle packed layer on the inner cylindrical tube 2b side, an electric heater 5 for incinerating the fine particles is installed on the outer peripheral side of the inner cylindrical tube 2b. Further, in order to prevent particles in the particle packed layer 2c from being completely restrained by the outer tube 2a, a particle packed layer space 6 which is a non-particle space is provided above the particle packed layer 2c. When the particle packed bed filter 2 is mounted on a vehicle, it is possible to prevent the particles from adhering to each other in the particle packed bed 2c on the assumption that the particles can be swung by vibration during traveling.

排ガスは排ガス流入口７ａ及び排ガス流出口７ｂ間を矢印（→）の方向に流れる。該排ガス中の微粒子の集塵効率を向上させるために、排ガス中の微粒子を帯電させるために排ガス流入口７ａに設置された放電電極８が、該粒子充填層２ｃに流入する前の排ガス中の微粒子に単極性電荷を付与し、帯電粒子とした後、高電圧発生器１０より粒子充填層２ｃに電圧が供給され静電界が印加される。これにより、粒子充填層２ｃに流入した該帯電粒子は粒子充填層２ｃ内に効率的に捕集される。   The exhaust gas flows between the exhaust gas inlet 7a and the exhaust gas outlet 7b in the direction of the arrow (→). In order to improve the dust collection efficiency of the fine particles in the exhaust gas, the discharge electrode 8 installed at the exhaust gas inlet 7a for charging the fine particles in the exhaust gas is in the exhaust gas before flowing into the particle packed bed 2c. After applying a unipolar charge to the fine particles to form charged particles, a voltage is supplied from the high voltage generator 10 to the particle packed layer 2c and an electrostatic field is applied. As a result, the charged particles flowing into the particle packed layer 2c are efficiently collected in the particle packed layer 2c.

粒子充填層２ｃ内、特に内筒管２ｂ側に堆積する微粒子は、電気ヒーター５によって焼却される。電気ヒーター５にはヒーター用電源１１よりヒーター電源開閉器９を経由して電気が供給される。電気ヒーター５はほぼ接地電位にあるため、直流高電圧が重畳された放電電極８から単極性イオンを引き出すとともに、外筒管２ａの対向電極として機能するため、粒子充填層２ｃに静電界をかけることができる。   The fine particles deposited in the particle packed layer 2 c, particularly on the inner tube 2 b side, are incinerated by the electric heater 5. Electricity is supplied to the electric heater 5 from the heater power supply 11 via the heater power supply switch 9. Since the electric heater 5 is substantially at the ground potential, unipolar ions are extracted from the discharge electrode 8 on which the DC high voltage is superimposed and functions as a counter electrode of the outer tube 2a. Therefore, an electrostatic field is applied to the particle packed layer 2c. be able to.

排ガス中の微粒子に単極性電荷を与えるために、該高電圧発生器１０が絶縁体を介して負極性の直流高電圧を重畳する交流バリヤ放電管を用いる場合、該バリヤ放電管の電極が格子状のものを図４に、またコイル状のものを図５にそれぞれ示す。   When the high voltage generator 10 uses an AC barrier discharge tube in which a negative DC high voltage is superimposed via an insulator in order to give a unipolar charge to fine particles in the exhaust gas, the electrode of the barrier discharge tube is a lattice. FIG. 4 shows the shape and FIG. 5 shows the coil shape.

図４に示す第１の形式では、円筒絶縁管８ａの外周部に格子状電極８ｂを金属蒸着し、円筒絶縁管８ａの内面全体に円筒内電極８ｃを金属蒸着してバリヤ放電管８を形成する。この場合、万一、格子状電極８ｂの一部が断線しても導通が絶たれることがないため性能の低下が起こらない。   In the first form shown in FIG. 4, a grid-like electrode 8b is vapor-deposited on the outer periphery of the cylindrical insulating tube 8a, and an inner cylinder electrode 8c is vapor-deposited on the entire inner surface of the cylindrical insulating tube 8a to form a barrier discharge tube 8. To do. In this case, even if a part of the grid electrode 8b is disconnected, the conduction is not interrupted, so that the performance does not deteriorate.

また、図５に示す第２の形式では、円筒絶縁管８ａの外周部にコイル状電極８ｄを取り付け、円筒絶縁管８ａの内面全体に円筒内電極８ｃを金属蒸着してバリヤ放電管８を形成する。第１あるいは第２いずれの形式でも、その外周部電極に直流を重畳する交流バリヤ放電によりガス中に高濃度の単極性イオンを放出し、微粒子を帯電粒子として粒子充填層２ｃに供給する。また重畳する直流を負極性にすることにより、微粒子の燃焼を促進するオゾンを効果的に発生することができる。   In the second type shown in FIG. 5, a coiled electrode 8d is attached to the outer peripheral portion of the cylindrical insulating tube 8a, and the inner electrode 8c is vapor-deposited on the entire inner surface of the cylindrical insulating tube 8a to form the barrier discharge tube 8. To do. In either the first or second type, high concentration unipolar ions are released into the gas by AC barrier discharge in which DC is superimposed on the outer peripheral electrode, and fine particles are supplied as charged particles to the particle packed layer 2c. Moreover, ozone which accelerates | stimulates combustion of microparticles | fine-particles can be effectively generate | occur | produced by making the superimposed direct current into negative polarity.

ディーゼル機関の排ガス中の微粒子除去に本発明による電界印加による粒子充填層フィルター２を適用する場合は、電界印加用の接地電極を電気ヒーター５としてすす焼却用にも併用し、また車輌搭載の場合、走行時の振動により粒子充填層２ｃ内で粒子が揺動することにより、微粒子の固着防止を図ることができる。   When applying the particle packed bed filter 2 by applying an electric field according to the present invention to remove fine particles in exhaust gas from a diesel engine, the ground electrode for applying an electric field is also used for soot incineration as an electric heater 5 and mounted in a vehicle. In addition, the particles can be prevented from sticking by swinging in the particle packed layer 2c due to vibration during traveling.

ボイラー燃焼の排ガス中に含まれる灰分の集塵に電気集塵器を使用する場合、電気集塵器では捕集し難い微粒子を捕集するために、本発明による粒子充填層フィルター２を電気集塵器の後段に設置して使用することができる。その場合は、排ガス中の微粒子は電気集塵器において帯電するため、排ガス流入口７ａにおけるバリヤ放電管８を必要としない構成となる。   When an electrostatic precipitator is used to collect ash contained in the exhaust gas of boiler combustion, the particle packed bed filter 2 according to the present invention is electrostatically collected in order to collect fine particles that are difficult to collect with the electrostatic precipitator. It can be installed and used at the rear stage of a dust container. In this case, since the fine particles in the exhaust gas are charged in the electric dust collector, the barrier discharge tube 8 at the exhaust gas inlet 7a is not required.

また、ボイラー燃焼排ガスに含まれる不燃性微粒子の捕集に本発明を使用する場合には、電界印加により粒子充填層２ｃ内の粒子が上部から下部へ移動する粒子移動層を形成して、集塵器の外部で分離器により堆積微粒子を除去するものとする。当該方式については、本発明者瀬戸弘の出願による特許第３０２８４６６号（平成１２年２月４日登録）によるものがある。   In addition, when the present invention is used for collecting incombustible fine particles contained in boiler combustion exhaust gas, a particle moving layer in which particles in the particle packed bed 2c move from the upper part to the lower part by applying an electric field is formed. The deposited fine particles shall be removed by a separator outside the dust container. This method is based on Japanese Patent No. 3028466 (registered on February 4, 2000) filed by the present inventor Hiroshi Seto.

微粒子帯電量をパラメータとして粒子充填層の静電界強度と捕集効率の関係を示したグラフである。It is the graph which showed the relationship between the electrostatic field strength of a particle filling layer, and collection efficiency by using the amount of charged particles as a parameter. 微粒子帯電量をパラメータとして粒子充填層の粒子充填層高と捕集効率の関係を示したグラフである。6 is a graph showing the relationship between the particle packed bed height and the collection efficiency of the particle packed bed with the fine particle charge amount as a parameter. （ａ）は本発明による粒子充填層集塵装置側断面図、（ｂ）は（ａ）のＡ−Ａ断面図である。(A) is a particle packed bed dust collector side sectional view by the present invention, and (b) is an AA sectional view of (a). （ａ）は本発明による排ガス中の微粒子帯電用放電電極の格子状電極側断面図、（ｂ）は（ａ）のＡ−Ａ断面図である。(A) is a cross-sectional side view of a grid-like electrode of a discharge electrode for charging fine particles in exhaust gas according to the present invention, and (b) is a cross-sectional view taken along line AA of (a). （ａ）は本発明による排ガス中の微粒子帯電用放電電極のコイル状電極側断面図、（ｂ）は（ａ）のＡ−Ａ断面図である。(A) is a coiled-electrode side sectional view of a discharge electrode for charging fine particles in exhaust gas according to the present invention, and (b) is an AA sectional view of (a).

符号の説明Explanation of symbols

１ 円筒形ケース
２ 粒子充填層フィルター
２ａ 外筒管（通電性電極）
２ｂ 内筒管（通気性円管）
２ｃ 粒子充填層
３ 絶縁支持部
４ 排ガス通過部
５ 電気ヒーター（接地電極兼用）
６ 粒子充填層空間
７ａ 排ガス流入口
７ｂ 排ガス流出口
８ 放電電極
８ａ 円筒絶縁管
８ｂ 格子状電極
８ｃ 円筒内電極
８ｄ コイル状電極
９ ヒーター電源開閉器
１０ 高電圧発生器
１１ ヒーター用電源 1 Cylindrical case
2 Particle packed bed filter 2a Outer tube (conductive electrode)
2b Inner tube (breathable circular tube)
2c Particle packed bed 3 Insulation support 4 Exhaust gas passage 5 Electric heater (also used as ground electrode)
6 Particle packed bed space 7a Exhaust gas inlet 7b Exhaust gas outlet 8 Discharge electrode 8a Cylindrical insulating tube 8b Grid electrode 8c Cylindrical electrode 8d Coil electrode 9 Heater power switch 10 High voltage generator 11 Heater power supply

Claims (2)

内燃機関あるいは外燃機関の排ガス中の未燃分すす及び灰分等の集塵装置として構成された粒子充填層集塵装置において、通気性を有する多孔板である排ガス流入面と排ガス流出面との間に粒子充填層を具備し，かつ該粒子充填層内の充填粒子間に静電界を加えるべく該排ガス流入面と該排ガス流出面との間に直流電圧を印加した粒子充填層フィルターを設け、該粒子充填層フィルターの上流側に円筒絶縁管の外面に外周部電極、及び内面に円筒内電極を有するバリア放電管を設置し、当該外周部電極に負極性の直流高電圧を重畳した交流電圧を印加して高濃度の単極性イオンを発生させることにより、前記粒子充填層フィルターに流入する前に排ガス中の微粒子に対し単極性の電荷を与えることを特徴とする粒子充填層集塵装置。In a particle packed bed dust collector configured as a dust collector for unburned soot and ash in an exhaust gas of an internal combustion engine or an external combustion engine, an exhaust gas inflow surface and an exhaust gas outflow surface which are perforated plates are provided. Provided with a particle packed bed filter in which a DC voltage is applied between the exhaust gas inflow surface and the exhaust gas outflow surface so as to apply a static electric field between the packed particles in the particle packed layer . An AC voltage in which a barrier discharge tube having an outer peripheral electrode on the outer surface of a cylindrical insulating tube and an inner electrode on the inner surface is installed on the upstream side of the particle packed bed filter, and a negative DC high voltage is superimposed on the outer peripheral electrode. A particle packed bed dust collector that applies a unipolar charge to fine particles in the exhaust gas before flowing into the particle packed bed filter by applying a high concentration of unipolar ions . 前記粒子充填層内に充填された粒子を振動可能として，該粒子間に捕集された微粒子と層内の上部に非粒子空間を設けたことを特徴とする請求項１に記載の粒子充填層集塵装置。  2. The particle packed bed according to claim 1, wherein the particles packed in the particle packed bed are capable of vibrating, and a fine particle collected between the particles and a non-particle space are provided in an upper portion of the layer. Dust collector.
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JP5572156B2 (en) * 2009-05-19 2014-08-13 国立大学法人宇都宮大学 Particulate matter combustion apparatus and method
KR100926136B1 (en) 2009-05-27 2009-11-10 한국기계연구원 Electrostatic precipitator with automatic regeneration device for cleaning exhaust from vehicles
JP6290824B2 (en) 2015-05-22 2018-03-07 トヨタ自動車株式会社 Exhaust purification device
US20230008480A1 (en) * 2019-12-23 2023-01-12 Cymer, Llc Packed-bed filter for metal fluoride dust trapping in laser discharge chambers
CN111871605B (en) * 2020-07-29 2022-07-26 杭州石炭纪环保科技有限公司 Method for removing heavy metal in fly ash

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US10864526B2 (en) * 2017-05-03 2020-12-15 Airgard, Inc. Electrode for electrostatic precipitator gas scrubbing apparatus

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