JP2005305340A - Method and apparatus for removing dust - Google Patents

Method and apparatus for removing dust Download PDF

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JP2005305340A
JP2005305340A JP2004126993A JP2004126993A JP2005305340A JP 2005305340 A JP2005305340 A JP 2005305340A JP 2004126993 A JP2004126993 A JP 2004126993A JP 2004126993 A JP2004126993 A JP 2004126993A JP 2005305340 A JP2005305340 A JP 2005305340A
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dust
filter
brush
collected
containing gas
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JP4088928B2 (en
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Tomohiko Arai
倫彦 新井
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JAPAN ECO SCIENCE CORP
JAPAN ECO-SCIENCE CORP
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JAPAN ECO SCIENCE CORP
JAPAN ECO-SCIENCE CORP
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for removing dust capable of removing dust in order to suppress clogging, or the like without injuring a filter even when the dust collected by the filter has moisture and achieving the long life of the filter and the maintenance of excellent dust removal ability. <P>SOLUTION: When using the filter 3 for filtering and collecting dust from dust-containing gas, coating for preventing the fuzzing due to a brush 4 is performed on the outer surface of the filter 3, the dust-containing gas is allowed to flow through the filter 3 from outside to inside, thereby, the dust is filtered and collected, the brush 4 is slid and contacted with the surface of the outer peripheral side of the filter 3 and the dust collected by the filter 3 is removed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、半導体製造工程や廃棄物処理工程等において発生する有害な粉塵を分離して除去する粉塵の除去方法および除去装置に関する。   The present invention relates to a dust removing method and a removing apparatus for separating and removing harmful dust generated in a semiconductor manufacturing process, a waste treatment process, and the like.

半導体素子製造工程等に用いられる粉塵除去装置として、粉塵を含む気流中に筒状のフィルタを配置し、その外側から内側に含塵気体を貫流させて粉塵を濾過するとともに、目詰まり等を解消するためにフィルタから粉塵を取り除く際には、前記フィルタを回転させて、その遠心力により粉塵をフィルタから取り除くようにした粉塵除去装置が知られている(特許文献1)。   As a dust removal device used in semiconductor device manufacturing processes, etc., a cylindrical filter is placed in the airflow containing dust, and dust is filtered by flowing dust-containing gas from the outside to the inside, and clogging is eliminated. Therefore, when removing dust from the filter, there is known a dust removing device that rotates the filter and removes dust from the filter by centrifugal force (Patent Document 1).

特許文献1の粉塵除去装置は、従来、この種の粉塵除去装置が、筒状フィルタの内側から外側に含塵気体を貫流して粉塵を濾過し、フィルタの内側にて捕集された粉塵をブラシにより取り除くもの(特許文献2、特許文献3)としていたため、ブラシによる摩擦でフィルタの寿命が短かった点を改良しようとするものである。   Conventionally, the dust removing device of Patent Document 1 is such that this kind of dust removing device flows dust-containing gas from the inside to the outside of the cylindrical filter to filter the dust, and collects the dust collected inside the filter. Since it was what was removed with a brush (patent document 2, patent document 3), it is going to improve the point that the lifetime of the filter was short by the friction by a brush.

ところが、前記特許文献1の粉塵除去方法は、粉塵が、水分、油分、粘性粉塵などの湿り気を帯びている場合に、遠心力のみでは粉塵を十分に取り除くことができない。そしてこのような場合には、圧損が増大する等して良好な粉塵除去処理が行えなくなる、といった問題がある。
特開平11−57365号公報 特許第2850169号公報 特許第2819251号公報
However, the dust removal method of Patent Document 1 cannot sufficiently remove dust only with centrifugal force when the dust is moistened with moisture, oil, viscous dust or the like. And in such a case, there exists a problem that a favorable dust removal process cannot be performed because pressure loss increases.
JP-A-11-57365 Japanese Patent No. 2850169 Japanese Patent No. 2819251

本発明はかかる従来技術の課題に鑑みなされたものであって、フィルタにより捕集される粉塵が湿り気を帯びている場合にも、フィルタを損傷することなく目詰まり等を解消するよう粉塵を取り除き、フィルタの長寿命化と良好な粉塵除去能力の維持とを達成することが可能な粉塵の除去方法および除去装置を提供することを目的としている。   The present invention has been made in view of the problems of the prior art, and removes dust so as to eliminate clogging without damaging the filter even when the dust collected by the filter is damp. An object of the present invention is to provide a dust removal method and a removal device capable of achieving a longer filter life and maintaining good dust removal capability.

本発明の粉塵の除去方法は、含塵気体中から粉塵を濾過捕集するためのフィルタを用いた粉塵の除去方法であって、前記フィルタの外表面にはブラシによる毛羽立ち防止のためのコーティングがなされ、前記フィルタの外側から内側に前記含塵気体を貫流させて粉塵を濾過捕集し、前記フィルタの外周側表面にブラシを摺接させて、前記フィルタに捕集された粉塵を取り除くことを特徴とする。   The dust removing method of the present invention is a dust removing method using a filter for collecting dust from dust-containing gas, and the outer surface of the filter has a coating for preventing fuzz by a brush. The dust-containing gas is allowed to flow from the outside to the inside of the filter to collect dust, and the brush is brought into sliding contact with the outer peripheral surface of the filter to remove the dust collected on the filter. Features.

本発明の粉塵の除去方法においては、ブラシを回転させて粉塵を取り除いてもよく、あるフィルタを回転させて粉塵を取り除いてもよい。後者の場合、圧損値信号によりフィルタの回転を制御するのが好ましい。   In the dust removing method of the present invention, the brush may be rotated to remove the dust, or a certain filter may be rotated to remove the dust. In the latter case, the rotation of the filter is preferably controlled by the pressure loss value signal.

本発明の粉塵の除去装置は、含塵気体中から粉塵を濾過捕集するためのフィルタを備えてなる粉塵の除去装置であって、前記フィルタが略筒状とされるとともにその外表面にはブラシによる毛羽立ち防止のためのコーティングがなされ、その外側から内側に前記含塵気体を貫流させて粉塵を濾過捕集するものとされ、前記フィルタの外周側表面と摺接して、前記フィルタに捕集された粉塵を取り除くブラシが設けられてなることを特徴とする。   The dust removing device of the present invention is a dust removing device comprising a filter for filtering and collecting dust from dust-containing gas, and the filter is substantially cylindrical and has an outer surface. A coating for preventing fuzz by a brush is made, and the dust-containing gas is allowed to flow from the outside to the inside to collect dust by filtration. The dust is collected in contact with the outer peripheral surface of the filter and collected by the filter. It is characterized in that a brush for removing the generated dust is provided.

本発明の粉塵の除去装置においては、コーティングが無数の微細孔を有し、かつブラシと前記コーティングとが静電気的に中立、または同極性である材質とされてなるのが好ましい。   In the dust removing apparatus of the present invention, it is preferable that the coating has countless fine holes, and the brush and the coating are made of a material that is electrostatically neutral or of the same polarity.

本発明は、前記の如く構成されているので、フィルタにより捕集される粉塵が湿り気を帯びている場合にも、フィルタを損傷することなく目詰まり等を解消するよう粉塵を取り除き、フィルタの長寿命化と良好な粉塵除去能力の維持とを達成できるという優れた効果が得られる。   Since the present invention is configured as described above, even when the dust collected by the filter is moist, the dust is removed so as to eliminate clogging without damaging the filter. An excellent effect is achieved that it is possible to achieve a long life and maintain good dust removal capability.

以下、添付図面を参照しながら本発明を実施形態に基づいて説明するが、本発明はかかる実施形態のみに限定されるものではない。   Hereinafter, although the present invention is explained based on an embodiment, referring to an accompanying drawing, the present invention is not limited only to this embodiment.

実施形態1
図1に、本発明の実施形態1に係る粉塵の除去方法に適用された粉塵の除去装置(以下、単に除去装置という)を示し、この除去装置1は、例えば半導体製造工程において気体中の粉塵を除去するために用いられるものとされ、含塵気体を取り入れるための気体取入口11および除塵された気体を送出するための気体送出口12を有する気密容器からなるケーシング2と、このケーシング2に収納され、前記ケーシング2内部に取り入れられた気体中の粉塵を濾過捕集するフィルタ3と、フィルタ3の濾過捕集機能を再生するようフィルタ3から粉塵を掻き落とす再生処理を行うためのブラシ4と、ブラシ4を駆動するモータ5とを主要構成要素として備えてなる。
Embodiment 1
FIG. 1 shows a dust removing device (hereinafter simply referred to as a removing device) applied to a dust removing method according to Embodiment 1 of the present invention. The removing device 1 is, for example, dust in a gas in a semiconductor manufacturing process. A casing 2 comprising an airtight container having a gas inlet 11 for taking in a dust-containing gas and a gas outlet 12 for sending out the dust-removed gas; A filter 3 that is stored and filtered to collect dust in the gas introduced into the casing 2 and a brush 4 that performs a regeneration process for scraping dust from the filter 3 so as to regenerate the filtering and collecting function of the filter 3. And a motor 5 for driving the brush 4 as main components.

ケーシング2およびフィルタ3は略同軸心に配される円筒状部材とされる。ケーシング2の上面に設けられた気体取入口11からケーシング2内部に取り入れられた含塵気体は、ケーシング2内部でフィルタ3の外側から内側に貫流され、これにより気体中から粉塵が濾過捕集される。濾過済み気体は、フィルタ3の内部からケーシング2下部に設けられた気体送出口12を通して外部に送出される。   The casing 2 and the filter 3 are cylindrical members disposed substantially coaxially. The dust-containing gas taken into the casing 2 from the gas inlet 11 provided on the upper surface of the casing 2 flows through the inside of the casing 2 from the outside to the inside of the filter 3, whereby dust is filtered and collected from the gas. The The filtered gas is sent from the inside of the filter 3 to the outside through a gas outlet 12 provided at the lower part of the casing 2.

フィルタ3は、フェルト、または高分子繊維が混織されたフェルトからなり、その粉塵捕集面である外周面には、無数の微細孔を有する例えばPTFE(四フッ化エチレン)の薄膜からなるコーティング(毛羽立ち防止コーティングが施されるものとされる。なお、図示はされていないが、フィルタ3は網状の保持部材によりその形状が変化しないよう内面からサポートされている。   The filter 3 is made of felt or felt mixed with polymer fibers, and a coating made of a thin film of PTFE (tetrafluoroethylene), for example, having numerous fine holes on the outer peripheral surface, which is a dust collecting surface. (It is assumed that a fuzz prevention coating is applied. Although not shown, the filter 3 is supported from the inner surface by a mesh-like holding member so that the shape thereof does not change.

ブラシ4は、例えばポリプロピレン(PP)から形成されており、ギアヘッド21およびカップリング22を介して、モータ5により回転駆動されるハンガーアーム23に設けられるものとされる。なお、ブラシ4の材質はPPに限定されるものではなく、粉塵除去が可能な適宜材質とできる。   The brush 4 is made of, for example, polypropylene (PP), and is provided on a hanger arm 23 that is rotationally driven by the motor 5 via a gear head 21 and a coupling 22. In addition, the material of the brush 4 is not limited to PP, and can be an appropriate material capable of removing dust.

ハンガーアーム23は、略コの字形に形成された細長い板状の部材とされ、コの字の2本の横線に相当するブラシ取付部23a(図には一方のブラシ取付部のみが示されている)と、コの字の1本の縦線に相当するカップリング取付部23bとから構成されている。   The hanger arm 23 is an elongated plate-like member formed in a substantially U-shape, and a brush mounting portion 23a (only one brush mounting portion is shown in the figure) corresponding to two U-shaped horizontal lines. And a coupling mounting portion 23b corresponding to one vertical line of a U-shape.

2本のブラシ取付部23aは、フィルタ3を間に挟んで、その内側のブラシ取付面23cをフィルタ3の外周面と常時対向させるように配され、ブラシ4は、その先端をフィルタ3の外周面と摺接させるようブラシ取付面23cに取り付けられるものとされる。   The two brush mounting portions 23a are arranged so that the inner brush mounting surface 23c is always opposed to the outer peripheral surface of the filter 3 with the filter 3 interposed therebetween, and the brush 4 has its tip at the outer periphery of the filter 3. The brush is attached to the brush attachment surface 23c so as to be in sliding contact with the surface.

また、ブラシ取付部24aの先端部分は、フィルタ3に遊嵌されるセットリング25に締結され、その開度が規定されるものとされる。   Moreover, the front-end | tip part of the brush attachment part 24a is fastened by the set ring 25 loosely fitted by the filter 3, and the opening degree shall be prescribed | regulated.

しかして、ブラシ4は、モータ5により常時回転駆動されており、フィルタ3の外周面と摺接して、フィルタ3の再生処理を行うものとされる。ここで、前記したように、フィルタ3の粉塵捕集面である外周面にはPTFEからなるコーティングが施されているため、ブラシ4により摩擦されてもフィルタ3表面を毛羽立てる等の損傷を与えることがない。また、ブラシ4により間断なくフィルタ3の再生処理が行われるため、濾過捕集された粉塵が湿り気を帯びているような場合にも、粉塵がフィルタ3に固着してしまうことがなく、フィルタ3の目詰まりによる圧損増大を抑えて、良好な濾過機能を長期間に亘って維持することが可能となる。   Thus, the brush 4 is always driven to rotate by the motor 5 and is in sliding contact with the outer peripheral surface of the filter 3 to perform the regeneration processing of the filter 3. Here, as described above, since the coating made of PTFE is applied to the outer peripheral surface which is the dust collecting surface of the filter 3, even if the filter 4 is rubbed, the surface of the filter 3 is fluffed and damaged. There is nothing. Moreover, since the regeneration process of the filter 3 is performed without interruption by the brush 4, the dust does not adhere to the filter 3 even when the dust collected by filtration is wet, and the filter 3. It is possible to suppress an increase in pressure loss due to clogging and maintain a good filtration function for a long period of time.

また、コーティングの微細孔の径は、粉塵の粒径に対して十分に小さくすることが可能であり、フィルタ3内部への粉塵の侵入を最小限に抑えることが可能である。これにより、圧損増大を抑えて、良好な濾過機能を長期間に亘って維持することが可能となる。   Further, the diameter of the fine pores of the coating can be made sufficiently small with respect to the particle size of the dust, and the intrusion of the dust into the filter 3 can be minimized. Thereby, it is possible to suppress an increase in pressure loss and maintain a good filtration function for a long period of time.

また、ブラシ4をPTFEと同様の負電荷の担体であるポリプロピレンから形成することによって、互いに摩擦し合っても静電気を発生することがなく、粉塵のフィルタ3からの掻き落としが容易となる。したがって、フィルタ3の目詰まりによる圧損増大を抑えて、良好な濾過機能を長期間に亘って維持することが可能となる。   Further, by forming the brush 4 from polypropylene which is a negative charge carrier similar to PTFE, static electricity is not generated even if they are rubbed with each other, and dust can be easily scraped off from the filter 3. Therefore, an increase in pressure loss due to clogging of the filter 3 can be suppressed, and a good filtration function can be maintained over a long period of time.

実施形態2
図2に、実施形態2の粉塵の除去装置1Aを示す。実施形態2は実施形態1を改変したものであり、同図に示すように、ブラシ4Aをケーシング2Aに固定して設ける一方で、フィルタ3Aをモータ5Aにより回転駆動し、これにより、その粉塵捕集面である外周面をブラシ4Aと摺接させて、フィルタ3Aの再生処理を行うものとされる。
Embodiment 2
FIG. 2 shows a dust removing apparatus 1A according to the second embodiment. The second embodiment is a modification of the first embodiment. As shown in the figure, the brush 4A is fixedly provided on the casing 2A, while the filter 3A is rotationally driven by the motor 5A. The outer peripheral surface, which is a collecting surface, is brought into sliding contact with the brush 4A to perform the regeneration process of the filter 3A.

ここで、実施形態2においては、フィルタ3Aの内外の差圧を計測する差圧計(不図示である)が設けられており、その計測値に基づく圧損値信号が制御装置30に入力される。制御装置30は、入力された圧損値信号を参照して、フィルタ3Aにおける圧損が所定レベル以上に達したときにモータ5Aを起動し、フィルタ3Aの再生処理を実行する一方で、圧損が所定レベル以下に減衰したときにはモータ5Aを停止し、再生処理の実行を停止するよう制御するものとされる。   Here, in the second embodiment, a differential pressure gauge (not shown) that measures the differential pressure inside and outside the filter 3 </ b> A is provided, and a pressure loss value signal based on the measured value is input to the control device 30. The control device 30 refers to the input pressure loss value signal, starts the motor 5A when the pressure loss in the filter 3A reaches a predetermined level or more, and executes the regeneration process of the filter 3A, while the pressure loss is at the predetermined level. When it attenuates below, the motor 5A is stopped, and control is performed so as to stop the execution of the regeneration process.

この構成によって、常時の再生処理が不要であるような運転条件においては圧損が増大したときにのみ再生処理を実行するようにして、ランニングコストの削減を図ることが可能である。また、フィルタ3Aの再生処理を、その回転による遠心力を利用して実行することも可能となる。したがって、よりいっそうの再生効果が期待できる。   With this configuration, it is possible to reduce the running cost by executing the regeneration process only when the pressure loss increases under an operating condition where the regular regeneration process is unnecessary. Further, it is possible to execute the regeneration process of the filter 3A by utilizing the centrifugal force generated by the rotation. Therefore, a further reproduction effect can be expected.

以上、本発明を実施形態に基づいて説明してきたが、本発明かかる実施形態のみに限定されるものではなく、種々改変が可能である。例えば、実施形態2ではモータ駆動とされているが、手動駆動とされてもよい。   As described above, the present invention has been described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made. For example, although the motor drive is used in the second embodiment, it may be a manual drive.

本発明によれば、粉塵が湿気を帯びているような場合にも、フィルタを損傷することなく粉塵をフィルタから取り除いて、良好な濾過機能を発揮させることが可能である。   According to the present invention, even when the dust is damp, it is possible to remove the dust from the filter without damaging the filter and to exhibit a good filtering function.

本発明の実施形態1に係る粉塵の除去方法に適用される粉塵の除去装置の構成を示す一部断面図である。It is a partial cross section figure which shows the structure of the dust removal apparatus applied to the dust removal method which concerns on Embodiment 1 of this invention. 本発明の実施形態2に係る粉塵の除去方法に適用される粉塵の除去装置の構成を示す一部断面図である。It is a partial cross section figure which shows the structure of the dust removal apparatus applied to the dust removal method which concerns on Embodiment 2 of this invention.

符号の説明Explanation of symbols

1 粉塵の除去装置
2 ケーシング
3 フィルタ
4 ブラシ
5 モータ
11 気体取入口
12 気体送出口
23 ハンガーアーム
30 制御装置
DESCRIPTION OF SYMBOLS 1 Dust removal apparatus 2 Casing 3 Filter 4 Brush 5 Motor 11 Gas inlet 12 Gas outlet 23 Hanger arm 30 Control apparatus

Claims (6)

含塵気体中から粉塵を濾過捕集するためのフィルタを用いた粉塵の除去方法であって、
前記フィルタの外表面にはブラシによる毛羽立ち防止のためのコーティングがなされ、
前記フィルタの外側から内側に前記含塵気体を貫流させて粉塵を濾過捕集し、
前記フィルタの外周側表面にブラシを摺接させて、前記フィルタに捕集された粉塵を取り除く
ことを特徴とする粉塵の除去方法。
A dust removal method using a filter for collecting dust from dust-containing gas by filtration,
The outer surface of the filter is coated to prevent fuzz with a brush,
Dust is collected by filtration through the dust-containing gas from the outside to the inside of the filter,
A dust removing method, wherein a brush is brought into sliding contact with the outer peripheral surface of the filter to remove dust collected by the filter.
ブラシを回転させて粉塵を取り除くことを特徴とする請求項1記載の粉塵の除去方法。 The dust removal method according to claim 1, wherein the dust is removed by rotating a brush. フィルタを回転させて粉塵を取り除くことを特徴とする請求項1記載の粉塵の除去方法。 The dust removal method according to claim 1, wherein the dust is removed by rotating the filter. 圧損値信号によりフィルタの回転を制御することを特徴とする請求項3記載の粉塵の除去方法。 4. The dust removal method according to claim 3, wherein the rotation of the filter is controlled by the pressure loss value signal. 含塵気体中から粉塵を濾過捕集するためのフィルタを備えてなる粉塵の除去装置であって、
前記フィルタが略筒状とされるとともにその外表面にはブラシによる毛羽立ち防止のためのコーティングがなされ、その外側から内側に前記含塵気体を貫流させて粉塵を濾過捕集するものとされ、前記フィルタの外周側表面と摺接して、前記フィルタに捕集された粉塵を取り除くブラシが設けられてなることを特徴とする粉塵の除去装置。
A dust removing device including a filter for collecting dust from dust-containing gas by filtration,
The filter has a substantially cylindrical shape and a coating for preventing fuzz by a brush is made on the outer surface thereof, and dust is filtered and collected by allowing the dust-containing gas to flow from the outside to the inside. A dust removing device, characterized in that a brush for removing dust collected by the filter is provided in sliding contact with the outer peripheral surface of the filter.
コーティングが無数の微細孔を有し、かつブラシと前記コーティングとが静電気的に中立、または同極性である材質とされてなることを特徴とする請求項5記載の粉塵の除去装置。 6. The dust removing apparatus according to claim 5, wherein the coating has innumerable fine holes, and the brush and the coating are made of a material that is electrostatically neutral or of the same polarity.
JP2004126993A 2004-04-22 2004-04-22 Dust removal method and removal apparatus Expired - Fee Related JP4088928B2 (en)

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* Cited by examiner, † Cited by third party
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CN103917073A (en) * 2014-03-10 2014-07-09 山东三维石化工程股份有限公司 Dustproof refrigeration machine case
JP2014133193A (en) * 2013-01-09 2014-07-24 Fuji Xerox Co Ltd Dust removal device and image formation device
JP2016041416A (en) * 2014-08-14 2016-03-31 河南竜成煤高効技術応用有限公司 Dust filter system for mixed gas of high temperature oil gas, water vapor and depositive carbide
CN116474483A (en) * 2023-05-05 2023-07-25 江苏韬略环保科技有限公司 Flue gas treatment system and process for waste activated carbon regeneration treatment process

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CN110833738B (en) * 2019-11-14 2021-08-27 唐忠仁 Medical waste burns gas cleaning device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014133193A (en) * 2013-01-09 2014-07-24 Fuji Xerox Co Ltd Dust removal device and image formation device
CN103917073A (en) * 2014-03-10 2014-07-09 山东三维石化工程股份有限公司 Dustproof refrigeration machine case
CN103917073B (en) * 2014-03-10 2016-08-17 山东三维石化工程股份有限公司 Dust-proof refrigerating machine case
JP2016041416A (en) * 2014-08-14 2016-03-31 河南竜成煤高効技術応用有限公司 Dust filter system for mixed gas of high temperature oil gas, water vapor and depositive carbide
CN116474483A (en) * 2023-05-05 2023-07-25 江苏韬略环保科技有限公司 Flue gas treatment system and process for waste activated carbon regeneration treatment process
CN116474483B (en) * 2023-05-05 2023-11-03 江苏韬略环保科技有限公司 Flue gas treatment system and process for waste activated carbon regeneration treatment process

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