JP2006281132A - Filter in dust removing device - Google Patents

Filter in dust removing device Download PDF

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JP2006281132A
JP2006281132A JP2005106467A JP2005106467A JP2006281132A JP 2006281132 A JP2006281132 A JP 2006281132A JP 2005106467 A JP2005106467 A JP 2005106467A JP 2005106467 A JP2005106467 A JP 2005106467A JP 2006281132 A JP2006281132 A JP 2006281132A
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filter
dust removing
air
dust
shape
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JP4810116B2 (en
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Yukimasa Yamazaki
幸雅 山▲崎▼
Akihiko Egawa
彰彦 江川
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MASUDA CLEAN TECH CO Ltd
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MASUDA CLEAN TECH CO Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To resolve problems wherein, though efficient dust removing is attained by increasing filtering area by forming a filter disposed in a dust removing device in zigzag, the filter deflects by air resistance to impair dust removing effect by contact of filter faces of an air passing side each other. <P>SOLUTION: In a main filter 8, form retaining materials 9 are packed inside a filter body 8a formed bag-like. Even if the filter body 8a receives load in the crushing direction by resistance of air passing through the main filter 8, the bag-like form is maintained with little deformation. As a result, even if spaces S between the adjacent filter bodies 8a are made small, no problem is caused, efficient dust removing is performed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、工場や工事での室内における作業現場において空気中に発生した粉塵（塵埃）を除去して該粉塵が除去された清浄な空気を再び現場に排出して循環させる粉塵除去装置におけるフィルタの技術分野に属するものである。   The present invention relates to a filter in a dust removing device that removes dust (dust) generated in the air at a work site in a factory or a construction room, and discharges and circulates clean air from which the dust has been removed to the site again. Belongs to the technical field.

今日、家庭用やオフィス用等に用いられるものであって、空気中に飛散する粉塵を捕集除去して塵埃のない清浄な空気を吐出する塵埃除去装置として、噴霧状の水を粉塵混入空気に通して該空気を浄化するようにしたものが知られている（例えば、特許文献１参照。）。ところがこのものは、粉塵で汚れた回収水をそのまま廃棄することは公害の観点から好ましくなく、水と粉塵とを分離して廃棄することが要求される。
そこで本発明の出願人は、作業現場に粉塵除去装置を並設し、作業により発生した粉塵を含有する空気を吸引し、該吸引した空気中の粉塵をフィルタで除塵し、該除塵された清浄空気を再び作業現場に供給するようにして作業現場での作業環境の改善を図るようにしたものを提供している（例えば、特許文献２参照。）。そしてこのものでは、フィルタに捕集された粉塵を振動棒で叩き落し、該叩き落した粉塵を回収廃棄するようにしてフィルタのメンテナンスを簡単にしてフィルタ寿命を長くできるようにしている。
特開平９−１６８７１４号公報 特開平９−８５５７４号公報 Today, it is used in homes and offices, and is used as a dust removal device that collects and removes dust scattered in the air and discharges clean air without dust. There is known one that purifies the air through the air (see, for example, Patent Document 1). However, in this case, it is not preferable from the viewpoint of pollution to discard the collected water contaminated with dust as it is, and it is required to separate the water and dust for disposal.
Therefore, the applicant of the present invention installs a dust removal device in parallel at the work site, sucks air containing dust generated by the work, removes the dust in the sucked air with a filter, and cleans the dust that has been removed. There is provided a device in which air is supplied again to the work site so as to improve the work environment at the work site (see, for example, Patent Document 2). In this device, dust collected on the filter is struck down with a vibrating rod, and the struck dust is collected and discarded, thereby simplifying filter maintenance and extending the filter life.
JP-A-9-168714 JP-A-9-85574

そして前記提供されたものは、吸引ファン（ブロア）による起風で空気流路を形成しているが、吸引ファンの配設位置は、吸引ファンに粉塵が付着しないようフィルタよりも流路下流側になり、この場合、フィルタを布等の可撓性のある素材を用いた場合、フィルタは、通過する空気抵抗を受けて流路下流側に凹状に撓むことになる。
ところでフィルタ面積を大きくして効率の良い除塵を達成することが好ましく、この場合、フィルタをジグザグ（葛篭折）状に形成することが提唱されるが、フィルタは、前記空気抵抗を受けて撓んだ場合、空気が通過した側のフィルタ面同志が接触して除塵効果が損なわれるという問題があり、これを避けるため、フィルタ間の間隙を大きくするか、フィルタを金枠等の枠体で補強する必要があるが、前者の場合には装置の小型コンパクト化の妨げになり、後者の場合にはフィルタの補強が面倒かつ煩雑になるという問題があり、ここに本発明が解決せんとする課題がある。 In the above, the air flow path is formed by the wind generated by the suction fan (blower). However, the suction fan is disposed downstream of the filter so that dust does not adhere to the suction fan. In this case, when a flexible material such as cloth is used for the filter, the filter is bent in a concave shape on the downstream side of the flow path due to air resistance passing therethrough.
By the way, it is preferable to increase the filter area to achieve efficient dust removal. In this case, it is proposed to form the filter in a zigzag shape, but the filter is bent by receiving the air resistance. In this case, there is a problem that the filter surfaces on the side through which air has passed come into contact with each other and the dust removal effect is impaired. To avoid this, the gap between the filters is increased or the filter is reinforced with a frame such as a metal frame. However, in the case of the former, there is a problem that the apparatus becomes small and compact, and in the case of the latter, there is a problem that the reinforcement of the filter becomes troublesome and complicated. There is.

本発明は、上記の如き実情に鑑みこれらの課題を解決することを目的として創作されたものであって、請求項１の発明は、フィルタが設けられたフィルタ室と、該フィルタ室に空気を吸引するための吸引ファンとを、該吸引ファンの作動により発生する空気流路の上手側から順次配して構成される粉塵除去装置において、前記フィルタは、吸引ファン側が開口した袋状のフィルタ本体を用いて構成されたものとし、該フィルタ本体内に空気通過率が高く可撓性を有する形状保持材を充填してあることを特徴とする粉塵除去装置におけるフィルタである。
請求項２の発明は、請求項1において、前記フィルタは、フィルタ本体の複数が並列状に連結して構成されるものであることを特徴とする粉塵除去装置におけるフィルタである。
請求項３の発明は、請求項1または２の何れか一つにおいて、前記形状保持材は、高弾性繊維をフィルタよりも空気通過率が高い状態で三次元的に接着して構成された不織布であることを特徴とする粉塵除去装置におけるフィルタである。 The present invention was created in view of the above-described circumstances in order to solve these problems, and the invention of claim 1 includes a filter chamber provided with a filter, and air in the filter chamber. In the dust removing device configured by sequentially arranging a suction fan for suction from the upper side of the air flow path generated by the operation of the suction fan, the filter is a bag-shaped filter body having an opening on the suction fan side A filter in a dust removing device, wherein the filter main body is filled with a flexible shape-retaining material having a high air passage rate.
The invention of claim 2 is the filter in the dust removing device according to claim 1, wherein the filter is configured by connecting a plurality of filter bodies in parallel.
A third aspect of the present invention is the nonwoven fabric according to any one of the first or second aspect, wherein the shape retaining material is formed by three-dimensionally adhering highly elastic fibers in a state where the air passage rate is higher than that of the filter. It is a filter in the dust removal apparatus characterized by being.

請求項１の発明とすることにより、フィルタは、通過する空気抵抗を受けてフィルタ本体が潰れる方向の負荷を受けたとしても、殆んど変形することなく袋状態が維持されるため、効率の良い除塵ができることになる。
請求項２の発明とすることにより、フィルタの通気面積が広くなるため、フィルタの目詰まりを防止することができる。
請求項３の発明とすることにより、フィルタをしっかり強度があるものに形成できてフィルタを通過した空気の通気が容易にできる。 According to the first aspect of the present invention, even if the filter receives a load in the direction in which the filter main body is crushed due to the air resistance to pass through, the bag state is maintained with almost no deformation. Good dust removal will be possible.
By setting it as invention of Claim 2, since the ventilation area of a filter becomes large, clogging of a filter can be prevented.
By setting it as invention of Claim 3, a filter can be formed in what has sufficient intensity | strength, and ventilation of the air which passed the filter can be made easy.

次ぎに、本発明の実施の形態について、図面に基づいて説明する。図中、１は粉塵除去装置Ａのフィルタ室であって、該フィルタ室１を構成するケーシング２は矩形状をし、正面板３に開設された吸引口３ａには、プレフィルタ４が設けられている。該プレフィルタ４は、金属フィルタ４ａと矩形状の格子枠体４ｂとで構成されている。金属フィルタ４ａは、カール状に形成された複数の金属等からなる繊維状の線材が絡み合ってマット状に形成されており、周囲を前記格子枠体４ｂに保持されている。該格子枠体４ｂは、吸引口３ａに対応した形状であって、吸引口に着脱自在になるよう設定されている。ケーシング２の天井板５に設けた連通孔５ａはダクト６に連通連結されており、該ダクト６に吸引ファン７が配置されている。そして吸引ファン７が駆動することで、空気が、プレフィルタ４を通じてケーシング２内のフィルタ室１に吸引され、この吸引した空気をダクト６の先端部に設けた排出口６ａから装置外に排出させる（図２参照）空気流路が形成される。本実施の形態のダクト６は、排出口６ａを吸引ファン７の上方に設けているが、ダクト６を前方に延出させた設定（図２の鎖線部参照。）としてもよい。   Next, embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a filter chamber of the dust removing device A. A casing 2 constituting the filter chamber 1 has a rectangular shape, and a pre-filter 4 is provided in a suction port 3a opened in the front plate 3. ing. The pre-filter 4 includes a metal filter 4a and a rectangular lattice frame 4b. The metal filter 4a is formed in a mat shape by intertwining fibrous wires made of a plurality of metals or the like formed in a curl shape, and the periphery is held by the lattice frame 4b. The lattice frame 4b has a shape corresponding to the suction port 3a and is set to be detachable from the suction port. A communication hole 5 a provided in the ceiling plate 5 of the casing 2 is connected to a duct 6 and a suction fan 7 is disposed in the duct 6. When the suction fan 7 is driven, air is sucked into the filter chamber 1 in the casing 2 through the pre-filter 4, and the sucked air is discharged out of the apparatus from the discharge port 6 a provided at the front end of the duct 6. (See FIG. 2) An air flow path is formed. In the duct 6 of the present embodiment, the discharge port 6a is provided above the suction fan 7. However, the duct 6 may be set to extend forward (see the chain line portion in FIG. 2).

８はフィルタ室１に内装されるメインフィルタであって、該メインフィルタ８は、濾過用の濾布材からなるフィルタ地（フィルタ地のメッシュは除去する粉塵粒度によって調整される）を底部が閉じられた矩形中空状に形成することで、流路下流側（図面の上側）が開口するよう袋状に形成されたフィルタ本体８ａの複数（本実施の形態では後述するように５袋が１セットになっている）を、適宜間隔を存して並列状（短冊状）に連結して構成されている。そしてフィルタ室１では、前記プレフィルタ４から吸引された粉塵含有空気が袋状のフィルタ本体８ａの外側から内側に通過することで除塵され、該除塵された空気が前記ダクト排出口６ａを介して清浄な空気として室内に排出され循環するようになっている。   Reference numeral 8 denotes a main filter installed in the filter chamber 1, and the main filter 8 closes the bottom of a filter ground made of a filter cloth material for filtration (the mesh of the filter ground is adjusted by the dust particle size to be removed). A plurality of filter main bodies 8a formed in a bag shape so that the downstream side of the flow path (upper side in the drawing) is opened by forming a rectangular hollow shape (in this embodiment, one set of five bags as described later) Are connected in parallel (stripes) with appropriate intervals. In the filter chamber 1, the dust-containing air sucked from the pre-filter 4 is removed by passing from the outside to the inside of the bag-like filter body 8 a, and the dust-removed air passes through the duct discharge port 6 a. It is discharged into the room as clean air and circulated.

９はフィルタ本体８ａの形状保持材であって、該形状保持材９は、カール状になった高弾性繊維を、空間率（空隙率）が大きく（９０％以上）、メインフィルタ８よりも空気通過率が大きくなる状態で三次元的にランダム状に接着、若しくは海綿状に絡み合わせて不織布となるように形成されており、可撓性を有するとともに、形状保持機能を有するため、メインフィルタ本体８ａが吸引ファン７の空気吸引による空気抵抗を受けても潰れないような設定となっている。前記形状保持材９は、前記フィルタ本体８ａに対応して矩形状に形成され、前記フィルタ本体８ａの内側に充填状に挿入組み込みされるが、形状保持材９のフィルタ本体８ａへの組み込みは、フィルタ本体８ａの流路下流側の開口から形状保持材９を挿入しフィルタ本体８ａの底部に当接せしめることによって、なされる設定になっている。したがって、形状保持材９をフィルタ本体８ａに挿入した際の位置決めが簡単にできる。
前記形状保持材９は、フィルタ本体８ａの袋内、つまりメインフィルタ８の空気通過側に挿入組み込みされている。因みに、形状保持材としては、形状保持機能を高くするため高弾性を有するほど好ましく、例えば、ナイロン系の繊維、ポリ塩化ビニリデン系の繊維等の合成繊維が例示されるが、ヤシ科植物の繊維等のような天然繊維を用いることもできる。 9 is a shape retaining material for the filter main body 8a. The shape retaining material 9 is made of a highly elastic fiber that is curled and has a larger space ratio (void ratio) (90% or more) and air than the main filter 8. Main filter main body because it is flexible and has a shape-retaining function, and is formed into a nonwoven fabric by three-dimensionally adhering in a random manner or entangled in a spongy shape with a high passage rate Even if 8a receives the air resistance by the air suction of the suction fan 7, it is set so as not to be crushed. The shape retaining material 9 is formed in a rectangular shape corresponding to the filter main body 8a, and is inserted and incorporated into the filter main body 8a in a filling state, but the shape retaining material 9 is incorporated into the filter main body 8a. The setting is made by inserting the shape-retaining material 9 from the opening on the downstream side of the flow path of the filter body 8a and bringing it into contact with the bottom of the filter body 8a. Therefore, positioning when the shape maintaining material 9 is inserted into the filter body 8a can be easily performed.
The shape retaining member 9 is inserted and incorporated in the bag of the filter body 8a, that is, on the air passage side of the main filter 8. Incidentally, as the shape-retaining material, it is preferable that the shape-retaining material has high elasticity in order to enhance the shape-retaining function, and examples thereof include synthetic fibers such as nylon fibers and polyvinylidene chloride fibers. Natural fibers such as can also be used.

前記メインフィルタ８は、フィルタ本体８ａの５個を１セットにして形成されているもので、フィルタ本体８ａの開口８ｂ側の周縁部には水平方向に延出した鍔部（耳部、フランジ部）８ｃを備えている。そしてメインフィルタ８は、前記鍔部８ｃをケーシング２の内側面に設けられた下支持片２ａ上に載置した状態で該下側支持片２ａの上側に着脱自在に設けた上側支持片１０で挟持することで組込まれるようになっている。因みに、本実施の形態では、下側支持片２ａと上側支持片１０とはクランプ１１により締め付ける設定になっている。   The main filter 8 is formed as a set of five filter main bodies 8a. A flange (ear part, flange part) extending in the horizontal direction is formed on the peripheral part on the opening 8b side of the filter main body 8a. ) 8c. The main filter 8 is an upper support piece 10 that is detachably provided on the upper side of the lower support piece 2a in a state where the flange portion 8c is placed on the lower support piece 2a provided on the inner surface of the casing 2. It is designed to be incorporated by pinching. Incidentally, in the present embodiment, the lower support piece 2a and the upper support piece 10 are set to be tightened by the clamp 11.

１３は振動棒であって、該振動棒１３は、フィルタ本体８ａ間に配されていて振動作動によってメインフィルタ８に付着した粉塵を振り落とすものであって、例えば振動棒１３が連結された振動体１４を、モータ１３ａの回転駆動をクランク機構１３ｂによって直線移動に変換して振動できるようになっており、そして振り落とされた粉塵は、ケーシング２の下端に設けられた捕集ケース１５に落下集積されるようになっている。尚、振動体１４は、作業休止等により吸引ファン７の作動が停止したときに一定時間（例えば、２０秒〜３０秒）振動作動をするように設定されている。また、前記振動作動によりメインフィルタ８から振り落とされた粉塵は、ケース体２の内部を浮遊することになるが、前記プレフィルタ４を室内側に通過する方向に浮遊する粉塵は、該プレフィルタ４の内面側部で受け止め阻止されることになり、該プレフィルタ４を通過して室内に漏れることはなく、該プレフィルタ４の採用により特別なシャッター機構並びにシャッター開閉機構を省略することができて機能の耐用向上とコスト低減に寄与できる。   Reference numeral 13 denotes a vibrating bar. The vibrating bar 13 is arranged between the filter main bodies 8a and shakes off dust adhering to the main filter 8 by vibration operation. For example, the vibrating bar 13 is connected to the vibrating bar 13. The body 14 can be vibrated by converting the rotational drive of the motor 13a into a linear movement by the crank mechanism 13b, and the dust that has been shaken down falls to a collecting case 15 provided at the lower end of the casing 2. It is to be accumulated. The vibrating body 14 is set so as to vibrate for a certain time (for example, 20 seconds to 30 seconds) when the operation of the suction fan 7 is stopped due to work stoppage or the like. Further, the dust shaken off from the main filter 8 by the vibration operation floats inside the case body 2, but the dust floating in the direction of passing through the prefilter 4 toward the indoor side 4 is prevented from being received by the inner surface side portion, and does not leak into the room through the prefilter 4, and a special shutter mechanism and a shutter opening / closing mechanism can be omitted by using the prefilter 4. This contributes to improved function durability and cost reduction.

叙述の如く構成された本実施の形態において、吸引ファン７の吸引作動することで、粉塵含有空気は、プレフィルタ４からフィルタ室１内に吸引され、メインフィルタ８によって除塵されたものが再び室内に排出されることになるが、メインフィルタ８は、袋状に形成されたフィルタ本体８ａの内部に形状保持材９が充填されているため、メインフィルタ８を通過する空気抵抗を受けてフィルタ本体８ａが潰れる方向の負荷を受けたとしても、殆んど変形することなく袋状態が維持される。この結果、メインフィルタ８を、隣接するフィルタ本体８ａ間の間隙Ｓを小さくしても問題になることがなく、効率の良い除塵ができることになる。
また、形状保持材９は、可撓性を有するものであり、振動体１４による振動作動に追従して撓むことにより振動が増幅するため、メインフィルタ８の粉塵除去を効率的に遂行できる。 In the present embodiment configured as described above, the dust-containing air is sucked into the filter chamber 1 from the pre-filter 4 by the suction operation of the suction fan 7, and the dust-removed air is removed again by the main filter 8. However, since the main filter 8 is filled with the shape-retaining material 9 inside the bag-shaped filter main body 8a, the main filter 8 receives the air resistance passing through the main filter 8 and receives the filter main body. Even if a load in the direction in which 8a is crushed is received, the bag state is maintained with almost no deformation. As a result, there is no problem even if the main filter 8 has a small gap S between adjacent filter bodies 8a, and efficient dust removal can be performed.
Further, the shape retaining material 9 has flexibility, and vibrations are amplified by bending following the vibration operation by the vibrating body 14, so that the dust removal of the main filter 8 can be performed efficiently.

粉塵除去装置の斜視図である。It is a perspective view of a dust removal apparatus. 粉塵除去装置の一部断面側面図である。It is a partial cross section side view of a dust removal apparatus. （Ａ）、（Ｂ）、（Ｃ）はそれぞれ粉塵除去装置の要部の一部正面断面図、図３（Ａ）のＸ−Ｘ断面図、図３（Ｂ）の一部詳細図である。(A), (B), (C) is a partial front sectional view of the main part of the dust removing device, respectively, XX sectional view of FIG. 3 (A), and a partial detail view of FIG. 3 (B). .

符号の説明Explanation of symbols

１ フィルタ室
２ ケーシング
２ａ 下側支持片
４ プレフィルタ
６ ダクト
６ａ 排出口
７ 吸引ファン
８ メインフィルタ
８ａ フィルタ本体
８ｃ 鍔部
９ 形状保持材
１０ 上側支持片
１３ 振動棒
Ａ 粉塵除去装置 DESCRIPTION OF SYMBOLS 1 Filter chamber 2 Casing 2a Lower side support piece 4 Pre filter 6 Duct 6a Exhaust port 7 Suction fan 8 Main filter 8a Filter body 8c Eave part 9 Shape holding material 10 Upper support piece 13 Vibrating rod A Dust removal device

Claims (3)

フィルタが設けられたフィルタ室と、該フィルタ室に空気を吸引するための吸引ファンとを、該吸引ファンの作動により発生する空気流路の上手側から順次配して構成される粉塵除去装置において、前記フィルタは、吸引ファン側が開口した袋状のフィルタ本体を用いて構成されたものとし、該フィルタ本体内に空気通過率が高く可撓性を有する形状保持材を充填してあることを特徴とする粉塵除去装置におけるフィルタ。 In a dust removing device configured by sequentially arranging a filter chamber provided with a filter and a suction fan for sucking air into the filter chamber from the upper side of an air flow path generated by the operation of the suction fan The filter is configured by using a bag-like filter main body opened on the suction fan side, and the filter main body is filled with a shape retaining material having a high air passage rate and flexibility. A filter in a dust removing device. 請求項1において、前記フィルタは、フィルタ本体の複数が並列状に連結して構成されるものであることを特徴とする粉塵除去装置におけるフィルタ。 2. The filter in the dust removing device according to claim 1, wherein the filter is configured by connecting a plurality of filter bodies in parallel. 請求項1または２の何れか一つにおいて、前記形状保持材は、高弾性繊維をフィルタよりも空気通過率が高い状態で三次元的に接着して構成された不織布であることを特徴とする粉塵除去装置におけるフィルタ。 3. The shape holding material according to claim 1, wherein the shape-retaining material is a non-woven fabric formed by three-dimensionally adhering highly elastic fibers in a state where the air passage rate is higher than that of a filter. Filter in dust removal device.
JP2005106467A 2005-04-01 2005-04-01 Dust removal equipment Expired - Fee Related JP4810116B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013533414A (en) * 2010-06-09 2013-08-22 フィルター・センシング・テクノロジーズ・インコーポレイテッド Method and system for removing filtration residue from filter
US10357733B2 (en) 2014-11-13 2019-07-23 Cts Corporation Filter retentate removal system and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104068A (en) * 1973-02-13 1974-10-02
JPS5886225A (en) * 1981-11-16 1983-05-23 Kyoei Kogyo Kk Excavating method
JPS5895534A (en) * 1981-11-30 1983-06-07 Hitachi Ltd Filter type dust remover

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104068A (en) * 1973-02-13 1974-10-02
JPS5886225A (en) * 1981-11-16 1983-05-23 Kyoei Kogyo Kk Excavating method
JPS5895534A (en) * 1981-11-30 1983-06-07 Hitachi Ltd Filter type dust remover

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013533414A (en) * 2010-06-09 2013-08-22 フィルター・センシング・テクノロジーズ・インコーポレイテッド Method and system for removing filtration residue from filter
US9144831B2 (en) 2010-06-09 2015-09-29 Filter Sensing Technologies, Inc. Method and system for removing retentate from filters
US9873074B2 (en) 2010-06-09 2018-01-23 Cts Corporation Method and system for removing retentate from filters
US10357733B2 (en) 2014-11-13 2019-07-23 Cts Corporation Filter retentate removal system and method

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