JPH07265733A - Electric precipitator - Google Patents

Electric precipitator

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Publication number
JPH07265733A
JPH07265733A JP6387294A JP6387294A JPH07265733A JP H07265733 A JPH07265733 A JP H07265733A JP 6387294 A JP6387294 A JP 6387294A JP 6387294 A JP6387294 A JP 6387294A JP H07265733 A JPH07265733 A JP H07265733A
Authority
JP
Japan
Prior art keywords
treated
preliminary
gas
dust
discharge
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.)
Granted
Application number
JP6387294A
Other languages
Japanese (ja)
Other versions
JP3384095B2 (en
Inventor
Tsuneo Kobayashi
恒雄 小林
Mitsuo Nagaoka
光雄 長岡
Nobuyuki Abe
伸行 阿部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP06387294A priority Critical patent/JP3384095B2/en
Publication of JPH07265733A publication Critical patent/JPH07265733A/en
Application granted granted Critical
Publication of JP3384095B2 publication Critical patent/JP3384095B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To keep dust collection efficiency even when the dust-containing degree of air to be treated is high. CONSTITUTION:An electric precipitator is constituted of the precipitator main body 12 connected to a duct 1 through which air to be treated flows and consisting of a casing 14 and the dust collection electrodes 20 and discharge electrodes 21 arranged in the casing 14 and the preparatory chamber 13 provided on the upstream side of the flow of the air to be treated of the main body 12 and having a plurality of dispersing plates 15a, 15b,... built therein. A part of the dispersing plates 15a, 15b,... is equipped with discharge rods 18b, 18d to be used as preparatory discharge electrodes 19b, 19d and the remainder of them is used as preparatory dust collection electrodes 17a, 17c, 17e and a high voltage generator 29 for applying high voltage is connected to these preparatory discharge electrodes 19b, 19d and preparatory dust collection electrodes 17a, 17c, 17e.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、例えばセメント製造設
備等のような高い含塵度の被処理気体の流路に設置され
て粉塵等を捕集するのに好適な電気集塵装置に関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic precipitator suitable for collecting dust and the like installed in a flow path of a gas to be treated having a high dust content such as a cement manufacturing facility. Is.

【0002】[0002]

【従来の技術】一般に、電気集塵装置は放電極と集塵極
との間に高電圧を印加することによりこれら放電極、集
塵極の両電極間にコロナ放電を生じさせ、電界の強い部
分の空気を電離させて荷電帯を発生させる構成のもので
ある。そして、例えば粉塵等の粒子が混入した被処理気
体の流路中にこの電気集塵装置を設置して被処理気体を
電気集塵装置に導入すると、被処理気体が前記荷電帯に
到達したときに粉塵等の粒子が帯電し、この帯電粒子が
反対電位の集塵極に付着して捕集されるようになってい
る。
2. Description of the Related Art Generally, in an electrostatic precipitator, a high voltage is applied between a discharge electrode and a dust collecting electrode to cause corona discharge between the discharge electrode and the dust collecting electrode, so that a strong electric field is generated. This is a configuration in which a portion of the air is ionized to generate a charge band. Then, for example, when this electrostatic precipitator is installed in the flow path of the gas to be treated in which particles such as dust are mixed and the gas to be treated is introduced into the electrostatic precipitator, when the gas to be treated reaches the charge zone Particles such as dust are electrically charged, and the charged particles are attached to and collected by a dust collecting electrode having an opposite potential.

【0003】図4は従来一般の電気集塵装置の一例を示
す図であって、水平方向に延在する被処理気体の流通ダ
クト1に電気集塵装置2が接続され、電気集塵装置2の
後段にファン9が接続されている。この電気集塵装置2
は、被処理気体を通過させるための多数の孔3、3、…
が形成された集塵極4と、両端が針状に形成された放電
棒5を有する放電極6とが被処理気体の流れ方向(図中
矢印X方向)に沿ってケーシング7内に交互に配置され
ている(図4には1組の集塵極4と放電極6のみを示
す)。そして、これら集塵極、放電極4、6の前段には
被処理気体の流れと垂直な方向に延び、多数の孔10、
10、…を有する複数の分散板8、8、…が設置されて
いる。したがって、装置2内に導入された被処理気体
は、複数の分散板8、8、…により流れが拡大した状態
で前方に流れていき、被処理気体が集塵極4と放電極6
との間に形成される荷電帯に到達したときに粉塵等の粒
子が帯電し、この帯電粒子が集塵極4に付着して捕集さ
れるわけである。すなわち、分散板8は被処理気体の流
れを拡大させて粒子を流れと直交する方向に分散させる
ことにより粒子の捕集効率を向上させるためのものであ
る。
FIG. 4 is a view showing an example of a conventional general electrostatic precipitator. An electrostatic precipitator 2 is connected to a flow duct 1 for a gas to be treated which extends in a horizontal direction, and an electrostatic precipitator 2 is provided. The fan 9 is connected in the subsequent stage. This electric dust collector 2
Is a large number of holes 3, 3, ... For passing the gas to be treated.
The dust collecting electrode 4 formed with the discharge electrode 5 and the discharge electrode 6 having the discharge rods 5 having needle-like ends are alternately arranged in the casing 7 along the flow direction of the gas to be treated (the arrow X direction in the drawing). Are arranged (only one set of dust collecting electrode 4 and discharge electrode 6 is shown in FIG. 4). In front of these dust collecting electrodes and discharge electrodes 4 and 6, a large number of holes 10, which extend in a direction perpendicular to the flow of the gas to be treated,
A plurality of dispersion plates 8, 8, ... Having 10, ... Are installed. Therefore, the gas to be treated introduced into the device 2 flows forward in a state in which the flow is expanded by the plurality of dispersion plates 8, 8, ..., The gas to be treated is the dust collecting electrode 4 and the discharge electrode 6.
Particles such as dust are electrically charged when they reach a charge zone formed between the and, and the charged particles adhere to the dust collecting electrode 4 and are collected. That is, the dispersion plate 8 is for expanding the flow of the gas to be treated and dispersing the particles in the direction orthogonal to the flow to improve the collection efficiency of the particles.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、例えば
セメント製造設備等に前記従来の電気集塵装置2を設置
した場合のように、特に被処理気体中の粒子の含塵度が
高いときには、放電極6、集塵極4の前段に分散板8を
設けたことにより被処理気体の流れを拡大させるように
したところで捕集効率の点ではまだ不十分であり、捕集
効率をより高めることのできる電気集塵装置の提供が望
まれていた。
However, when the dust content of particles in the gas to be treated is high, as in the case where the conventional electrostatic precipitator 2 is installed in, for example, a cement production facility, the discharge electrode is high. 6. By providing the dispersion plate 8 in front of the dust collecting electrode 4, the flow of the gas to be treated is expanded, but the collection efficiency is still insufficient, and the collection efficiency can be further improved. It was desired to provide an electric dust collector.

【0005】本発明は、前記の事情に鑑みてなされたも
のであって、特に被処理気体の含塵度が高い場合であっ
ても高い捕集効率を維持し得る電気集塵装置を提供する
ことを目的とする。
The present invention has been made in view of the above circumstances, and provides an electrostatic precipitator capable of maintaining high collection efficiency even when the gas to be treated has a high dust content. The purpose is to

【0006】[0006]

【課題を解決するための手段】前記の目的を達成するた
めに、本発明の電気集塵装置は、被処理気体が流れる流
路中に設置され、ケーシングと該ケーシング内に取り付
けられた集塵極および放電極とからなる装置本体と、該
装置本体に対して前記被処理気体の流れ方向上流側に連
設され、前記被処理気体の流れを拡大させるための分散
板が設けられた予備室とから構成され、前記分散板が前
記流れ方向に沿って複数設けられ、隣接するものの一方
が予備放電極、他方が予備集塵極とされ、これら予備放
電極と予備集塵極との間には高電圧を印加するための高
電圧発生装置が接続されたことを特徴とするものであ
る。
In order to achieve the above-mentioned object, an electrostatic precipitator of the present invention is installed in a flow path through which a gas to be treated flows, and a casing and a dust collector mounted in the casing. A preparatory chamber provided with an apparatus main body composed of a pole and a discharge electrode, and a dispersion plate connected to the apparatus main body on the upstream side in the flow direction of the gas to be treated and for expanding the flow of the gas to be treated. A plurality of the dispersion plates are provided along the flow direction, and one of the adjacent ones is a preliminary discharge electrode and the other is a preliminary dust collection electrode, and between the preliminary discharge electrode and the preliminary dust collection electrode. Is characterized in that a high voltage generator for applying a high voltage is connected.

【0007】[0007]

【作用】本発明の電気集塵装置は、予備室において被処
理気体に対して装置本体に導入する前の予備集塵を施す
ようにした点を特徴としている。すなわち、予備室に備
えられた複数の分散板が予備放電極と予備集塵極とを構
成しこれらの間に高電圧発生装置が接続されたことによ
り予備室がまた一つの電気集塵装置を構成している。し
たがって、高い含塵度の被処理気体が電気集塵装置に導
入されたときに、予備室の分散板が被処理気体の流れを
拡大させる作用をするのみならず、初期段階でのある程
度の集塵を行なうことにより含塵度を低下させる、すな
わち予備集塵を行なったうえで被処理気体を装置本体に
導入し、そこで本格的に集塵を行なうようにする。
The electrostatic precipitator of the present invention is characterized in that it preliminarily collects the gas to be treated in the preparatory chamber before introducing it into the main body of the apparatus. That is, the plurality of dispersion plates provided in the preliminary chamber constitute a preliminary discharge electrode and a preliminary dust collecting electrode, and the high voltage generator is connected between them, so that the preliminary chamber can be replaced by another electrostatic dust collector. I am configuring. Therefore, when the gas to be treated having a high dust content is introduced into the electrostatic precipitator, the dispersion plate in the preliminary chamber not only acts to expand the flow of the gas to be treated, but also to some extent in the initial stage. By performing dust, the dust content is lowered, that is, after preliminarily collecting dust, the gas to be treated is introduced into the apparatus main body, and dust is collected in earnest there.

【0008】[0008]

【実施例】以下、本発明の実施例を図1ないし図3を参
照して説明する。図1は本実施例の電気集塵装置11を
示す図であって、図中符号1は被処理気体の流通ダク
ト、12は装置本体、13は予備室、9はファンであ
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a view showing an electrostatic precipitator 11 of the present embodiment, in which reference numeral 1 is a flow duct for a gas to be treated, 12 is a main body of the apparatus, 13 is a preparatory chamber, and 9 is a fan.

【0009】装置本体12と予備室13とから構成され
た電気集塵装置11が被処理気体の流通ダクト1の途中
に接続されている。そして、電気集塵装置11の後段に
はファン9が設置されており、このファン9の作動によ
り流通ダクト1から電気集塵装置11の予備室13、装
置本体12といった順に被処理気体が導入されるように
なっている。
An electrostatic precipitator 11 composed of an apparatus body 12 and a preparatory chamber 13 is connected in the middle of a flow duct 1 for the gas to be treated. Then, a fan 9 is installed in the latter stage of the electrostatic precipitator 11, and by the operation of the fan 9, the gas to be treated is introduced from the distribution duct 1 to the auxiliary chamber 13 of the electrostatic precipitator 11 and the apparatus main body 12 in this order. It has become so.

【0010】予備室13はケーシング14内に被処理気
体の流れ方向と垂直な方向に延びる複数枚の分散板15
a、15b、…が備えられた構成となっている。そし
て、図2に示すように、これら分散板15a、15b、
…の各々には被処理気体を通過させるための多数の円形
の孔16a、16b、…が形成されている。また、図1
に示すように、これら分散板15a、15b、…は、最
も上流側に位置する分散板15aが予備集塵極17aと
され、以下一枚おきの分散板15c、15eが予備集塵
極17c、17eとされている。
The preliminary chamber 13 has a plurality of dispersion plates 15 extending in a casing 14 in a direction perpendicular to the flow direction of the gas to be treated.
A, 15b, ... Are provided. Then, as shown in FIG. 2, these dispersion plates 15a, 15b,
A large number of circular holes 16a, 16b, ... For passing the gas to be processed are formed in each. Also, FIG.
In these dispersion plates 15a, 15b, ..., the dispersion plate 15a located on the most upstream side is the preliminary dust collection electrode 17a, and every other dispersion plates 15c and 15e are the preliminary dust collection electrodes 17c. 17e.

【0011】そして、これら予備集塵極17a、17
c、17e間に挟まれた残りの分散板15b、15dに
は、図2に示すように、縦、横、斜め方向に隣接する孔
16b、16b同士の間に先端が尖った針状とされた放
電棒18b、18b、…が取り付けられて、これら分散
板15b、15dが予備放電極19b、19dとされて
いる。また、これら予備集塵極17a、17c、17e
と予備放電極19b、19dとの間に高電圧を印加する
ための高電圧印加装置29が接続されている。なお、こ
の高電圧印加装置29の消費電圧は後述する装置本体1
2の高電圧印加装置30の消費電圧に比べて小さいもの
で良い。
Then, these preliminary dust collecting electrodes 17a, 17
As shown in FIG. 2, the remaining dispersion plates 15b and 15d sandwiched between the c and 17e are needle-like with a sharp tip between the holes 16b and 16b adjacent in the vertical, horizontal, and diagonal directions. Discharge rods 18b, 18b, ... Are attached, and these dispersion plates 15b, 15d are used as preliminary discharge electrodes 19b, 19d. In addition, these preliminary dust collecting electrodes 17a, 17c, 17e
A high voltage applying device 29 for applying a high voltage is connected between the and the preliminary discharge electrodes 19b and 19d. The consumption voltage of the high voltage applying device 29 is the device main body 1 described later.
It may be smaller than the consumption voltage of the high voltage applying device 30 of No. 2.

【0012】装置本体12はケーシング14内に複数の
集塵極20と複数の放電極21とが交互に配置された構
成となっている(図1には1組の集塵極20と放電極2
1のみを示す)。ケーシング14は装置本体12部分が
予備室13部分に比して被処理気体の流れ方向の断面積
が大きくなるように設定されている。また、各集塵極2
0は、多数の孔22、22、…を有する板体で構成され
ており、これら多数の孔22、22、…を被処理気体が
通過するようになっている。そして、この集塵極20は
被処理気体の流れ方向に対して垂直となるようにケーシ
ング14に対して取り付けられている。
The apparatus main body 12 has a structure in which a plurality of dust collecting electrodes 20 and a plurality of discharge electrodes 21 are alternately arranged in a casing 14 (in FIG. 1, one set of dust collecting electrodes 20 and discharge electrodes). Two
1 is shown only). The casing 14 is set such that the apparatus main body 12 part has a larger cross-sectional area in the flow direction of the gas to be treated than the preparatory chamber 13 part. Also, each dust collection electrode 2
0 is composed of a plate body having a large number of holes 22, 22, ..., And the gas to be treated passes through these many holes 22, 22 ,. The dust collecting electrode 20 is attached to the casing 14 so as to be perpendicular to the flow direction of the gas to be treated.

【0013】一方、放電極21は、ケーシング14に対
して鉛直方向に固定された複数の支持部材23、23、
…と、各支持部材23に鉛直方向一定間隔おきに取り付
けられた水平方向に延びる放電棒24、24、…とから
なるものであり、放電棒24の先端は放電強度を高める
ために針状に形成され、この先端が集塵極20に対向す
るように配置されている。そして、放電極21と集塵極
20との間に高電圧を印加するための高電圧印加装置3
0が設けられている。
On the other hand, the discharge electrode 21 includes a plurality of support members 23, 23 fixed vertically to the casing 14.
, And discharge rods 24, 24, which are attached to each support member 23 at regular intervals in the vertical direction and extend in the horizontal direction, and the tip of the discharge rod 24 has a needle-like shape in order to enhance discharge strength. It is formed and is disposed so that its tip faces the dust collecting electrode 20. Then, a high voltage applying device 3 for applying a high voltage between the discharge electrode 21 and the dust collecting electrode 20.
0 is provided.

【0014】上記構成の電気集塵装置11では、装置本
体12の高電圧印加装置30により放電極21と集塵極
20との間に高電圧を印加すると、放電棒24の先端か
ら集塵極20に向けてコロナ放電が生じ、荷電帯が形成
される。そこで、装置本体12に被処理気体を導入する
と、被処理気体が前記荷電帯に到達したときに粉塵等の
粒子が帯電し、この帯電粒子が反対電位の集塵極20に
付着してこれが捕集される。また、予備室13の高電圧
印加装置29により予備放電極19b、19dと予備集
塵極17a、17c、17eとの間に高電圧を印加した
ときも同様であり、予備放電極19b、19dと予備集
塵極17a、17c、17eとの間に発生するコロナ放
電により荷電帯が生じ、粒子が帯電して予備集塵極17
a、17c、17eに捕集される。ただし、予備室13
の高電圧印加装置29は装置本体12のそれに比べて消
費電圧が小さく設定されているため、予備室13内のコ
ロナ放電は装置本体12内のコロナ放電より強度が小さ
く、粒子の捕集率も低い。
In the electrostatic precipitator 11 having the above structure, when a high voltage is applied between the discharge electrode 21 and the dust collecting electrode 20 by the high voltage applying device 30 of the device main body 12, the dust collecting electrode is discharged from the tip of the discharge rod 24. Corona discharge is generated toward 20 and a charge band is formed. Therefore, when the gas to be treated is introduced into the apparatus main body 12, particles such as dust are charged when the gas to be treated reaches the charge zone, and the charged particles adhere to the dust collecting electrode 20 having the opposite potential and are trapped. Gathered. The same is true when a high voltage is applied between the preliminary discharge electrodes 19b, 19d and the preliminary dust collection electrodes 17a, 17c, 17e by the high voltage application device 29 of the preliminary chamber 13, and the preliminary discharge electrodes 19b, 19d and The corona discharge generated between the preliminary dust collecting poles 17a, 17c, and 17e produces a charging zone, and the particles are charged to cause the preliminary dust collecting pole 17 to be charged.
a, 17c, 17e. However, spare room 13
Since the high voltage applying device 29 of No. 1 is set to have a smaller consumed voltage than that of the device body 12, the corona discharge in the auxiliary chamber 13 has a smaller intensity than the corona discharge in the device body 12, and the collection rate of particles is also high. Low.

【0015】したがって、本実施例の電気集塵装置11
においては、予備室13に設置された分散板15a、1
5b、…が被処理気体の流れを拡大させるのみならず、
予備放電極19b、19d、予備集塵極17a、17
c、17eを構成することにより高い含塵度の被処理気
体が予備室13に導入されたときに初期段階の軽い集
塵、いわゆる予備集塵を行なうようになっている。そし
て、被処理気体はその流れが拡大するとともに含塵度が
低下した状態で装置本体12に導入され、そこで本格的
な集塵が行なわれるようになっている。すなわち、本実
施例の装置11においては、予備室13に予備集塵、流
れの拡大による本集塵の効率向上の2つの機能を持たせ
るようにしたことで、予備集塵を行なわない従来の装置
に比べて粒子の捕集効率を向上させることができる。
Therefore, the electrostatic precipitator 11 of this embodiment
, The dispersion plates 15a, 1 installed in the preliminary chamber 13
5b, ... not only expand the flow of the gas to be treated,
Preliminary discharge electrodes 19b and 19d, preliminary dust collecting electrodes 17a and 17
By configuring c and 17e, when the gas to be treated having a high dust content is introduced into the preliminary chamber 13, light dust collection in the initial stage, that is, so-called preliminary dust collection is performed. Then, the gas to be treated is introduced into the apparatus main body 12 in a state where the flow thereof is expanded and the degree of dust inclusion is lowered, and full-scale dust collection is performed there. That is, in the apparatus 11 of the present embodiment, the preliminary chamber 13 is provided with the two functions of the preliminary dust collection and the efficiency improvement of the main dust collection due to the expansion of the flow. The collection efficiency of particles can be improved as compared with the device.

【0016】なお、本実施例においては、予備放電極1
7a、17c、17eの構成として多孔板に放電棒18
b、18b、…を取り付けたものを採用したが、この構
成に限るものではなく、図3に示すように、矩形の支持
枠25に対して縦横方向に延びる比較的肉厚の格子板2
6が固定され、この格子板26上の格子の交点および隣
接する交点の中間に放電棒27が取り付けられた構成と
しても良い。予備放電極28をこのように構成しても予
備集塵と流れの拡大といった両方の機能を持たせること
が可能である。
In this embodiment, the preliminary discharge electrode 1
7a, 17c, and 17e have a porous plate and a discharge rod 18
Although the b, 18b, ... Are adopted, the structure is not limited to this, and as shown in FIG. 3, a relatively thick grid plate 2 extending in the vertical and horizontal directions with respect to the rectangular support frame 25.
6 may be fixed, and the discharge rod 27 may be attached between the intersections of the lattices on the lattice plate 26 and the adjacent intersections. Even if the preliminary discharge electrode 28 is configured in this manner, it is possible to have both functions of preliminary dust collection and flow expansion.

【0017】また、前記実施例においては、ケーシング
14の予備室13部分を直方体状のものとしたが、この
形状に代えて、流通ダクト1側から装置本体12側に向
けて断面積が漸次拡大する四角錐状の形状(図1に2点
鎖線で示す)とし、被処理気体の流れ方向に沿って次第
に大寸法となる複数の分散板を設けるようにしても良
い。一方、装置本体12の集塵極20、放電極21の形
状、構成についても、例えば集塵極20の格子板を水平
方向や斜め方向に設置する、集塵極21を多孔板で構成
する等、本実施例に限ることなく種々の形状、構成とす
ることができる。
Further, in the above embodiment, the spare chamber 13 portion of the casing 14 has a rectangular parallelepiped shape, but instead of this shape, the cross-sectional area gradually increases from the distribution duct 1 side toward the apparatus main body 12 side. Alternatively, a plurality of dispersion plates having a quadrangular pyramid shape (indicated by a chain double-dashed line in FIG. 1) having a gradually increasing size may be provided along the flow direction of the gas to be processed. On the other hand, regarding the shape and configuration of the dust collecting electrode 20 and the discharge electrode 21 of the apparatus body 12, for example, the lattice plate of the dust collecting electrode 20 is installed in a horizontal direction or an oblique direction, the dust collecting electrode 21 is formed of a perforated plate, etc. The present invention is not limited to this embodiment, and various shapes and configurations can be adopted.

【0018】[0018]

【発明の効果】以上、詳細に説明したように、本発明の
電気集塵装置は、予備室に備えた複数の分散板で予備放
電極と予備集塵極を構成しこれらの間に高電圧発生装置
を接続したことにより予備室が一つの電気集塵装置を構
成するようにした点を特徴とするものである。したがっ
て、予備室に設置された分散板は従来からの被処理気体
の流れを拡大させる機能を有するのみならず、予備集塵
を行なう機能をも有しているため、被処理気体は予備室
においてその流れが拡大するとともに含塵度が低下した
状態で装置本体に導入され、そこで本格的な集塵が行な
われるようになっている。すなわち、本発明の電気集塵
装置においては、予備室に予備集塵、流れの拡大による
本集塵の効率向上の2つの機能を持たせるようにしたこ
とで、予備集塵を行なわない従来の装置に比べて粒子の
捕集効率を向上させることができ、高い含塵度の被処理
気体が発生するセメント製造設備等に適用されて好適な
ものとなる。
As described above in detail, in the electrostatic precipitator of the present invention, the preparatory discharge electrode and the preparatory precipitator are constituted by a plurality of dispersion plates provided in the preparatory chamber, and a high voltage is applied between them. It is characterized in that the auxiliary chamber constitutes one electric dust collector by connecting the generator. Therefore, since the dispersion plate installed in the preparatory chamber has not only the function of expanding the flow of the gas to be treated as in the past, but also the function of preliminarily collecting dust, the gas to be treated is kept in the preparatory chamber. As the flow expands and the dust content decreases, it is introduced into the main body of the device, where full-scale dust collection is performed. That is, in the electrostatic precipitator of the present invention, the preliminary chamber is provided with the two functions of the preliminary dust collection and the efficiency improvement of the main dust collection due to the expansion of the flow. The particle collection efficiency can be improved as compared with the apparatus, and it is suitable for application to a cement manufacturing facility or the like in which a gas to be treated having a high dust content is generated.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例である電気集塵装置を示す平
断面図である。
FIG. 1 is a plan sectional view showing an electrostatic precipitator according to an embodiment of the present invention.

【図2】同装置の予備集塵極および予備放電極を拡大視
した斜視図である。
FIG. 2 is an enlarged perspective view of a preliminary dust collecting electrode and a preliminary discharge electrode of the same apparatus.

【図3】同、予備集塵極および予備放電極の他の実施例
を示す斜視図である。
FIG. 3 is a perspective view showing another embodiment of the preliminary dust collecting electrode and the preliminary discharge electrode.

【図4】従来の電気集塵装置の一例を示す平断面図であ
る。
FIG. 4 is a plan sectional view showing an example of a conventional electrostatic precipitator.

【符号の説明】[Explanation of symbols]

11 電気集塵装置 12 装置本体 13 予備室 14 ケーシング 15a、15b、15c、15d、15e 分散板 17a、17c、17e 予備集塵極 19b、19d 予備放電極 20 集塵極 21 放電極 29 (予備室の)高電圧発生装置 11 Electrostatic Precipitator 12 Device Main Body 13 Preliminary Chamber 14 Casing 15a, 15b, 15c, 15d, 15e Dispersion Plate 17a, 17c, 17e Preliminary Dust Collection Electrode 19b, 19d Preliminary Discharge Electrode 20 Dust Collection Electrode 21 Discharge Electrode 29 (Preliminary Chamber) Of) High voltage generator

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 被処理気体が流れる流路中に設置され、
ケーシングと該ケーシング内に取り付けられた集塵極お
よび放電極とからなる装置本体と、 該装置本体に対して前記被処理気体の流れ方向上流側に
連設され、前記被処理気体の流れを拡大させるための分
散板が設けられた予備室とから構成され、 前記分散板が前記流れ方向に沿って複数設けられ、隣接
するものの一方が予備放電極、他方が予備集塵極とさ
れ、これら予備放電極と予備集塵極との間には高電圧を
印加するための高電圧発生装置が接続されたことを特徴
とする電気集塵装置。
1. Installed in a flow path through which a gas to be treated flows,
An apparatus main body including a casing and a dust collecting electrode and a discharge electrode mounted in the casing, and the apparatus main body are connected to the upstream side in the flow direction of the processing target gas to expand the flow of the processing target gas. And a spare chamber provided with a dispersion plate for allowing the dispersion plate to be provided in plural along the flow direction, and one of the adjacent ones is a preliminary discharge electrode and the other is a preliminary dust collecting electrode. An electrostatic precipitator characterized in that a high voltage generator for applying a high voltage is connected between the discharge electrode and the preliminary dust collector.
JP06387294A 1994-03-31 1994-03-31 Electric dust collector Expired - Fee Related JP3384095B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06387294A JP3384095B2 (en) 1994-03-31 1994-03-31 Electric dust collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06387294A JP3384095B2 (en) 1994-03-31 1994-03-31 Electric dust collector

Publications (2)

Publication Number Publication Date
JPH07265733A true JPH07265733A (en) 1995-10-17
JP3384095B2 JP3384095B2 (en) 2003-03-10

Family

ID=13241829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP06387294A Expired - Fee Related JP3384095B2 (en) 1994-03-31 1994-03-31 Electric dust collector

Country Status (1)

Country Link
JP (1) JP3384095B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014002641A1 (en) * 2012-06-29 2014-01-03 三菱重工メカトロシステムズ株式会社 Wet electric dust-collecting device and exhaust gas treatment method
US9839916B2 (en) 2012-07-20 2017-12-12 Mitsubishi Hitachi Power Systems Environmental Solutions, Ltd. Wet-type electric dust collection device and dust removal method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101836078B1 (en) * 2016-02-05 2018-04-19 두산중공업 주식회사 Moisture collector containing a charged particle device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014002641A1 (en) * 2012-06-29 2014-01-03 三菱重工メカトロシステムズ株式会社 Wet electric dust-collecting device and exhaust gas treatment method
JP2014008464A (en) * 2012-06-29 2014-01-20 Mitsubishi Heavy Industries Mechatronics Systems Ltd Wet electric dust collector, and exhaust gas treatment method
US9839916B2 (en) 2012-07-20 2017-12-12 Mitsubishi Hitachi Power Systems Environmental Solutions, Ltd. Wet-type electric dust collection device and dust removal method

Also Published As

Publication number Publication date
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