JP5435702B2 - Filter aid and filter element for spring type filter - Google Patents
Filter aid and filter element for spring type filter Download PDFInfo
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- JP5435702B2 JP5435702B2 JP2009065524A JP2009065524A JP5435702B2 JP 5435702 B2 JP5435702 B2 JP 5435702B2 JP 2009065524 A JP2009065524 A JP 2009065524A JP 2009065524 A JP2009065524 A JP 2009065524A JP 5435702 B2 JP5435702 B2 JP 5435702B2
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Description
本発明は、液体中および気体中に存在する微細物等を濾過するフィルターエレメントに関し、特に液体中の微細な懸濁物の濾過や気体中の微小な粉塵の濾過を目詰まりすることなく長期安定に使用できるフィルターエレメントに関するものである。 The present invention relates to a filter element that filters fine substances present in liquids and gases, and particularly stable for a long time without clogging filtration of fine suspensions in liquids and fine dust in gases. It relates to filter elements that can be used for
従来液体や気体の濾過にはフィルターエレメントとして濾布や濾紙が用いられているが、濾布や濾紙は被濾過物による目詰まりが生じるため定期的な交換が必要でありランニングコストが掛かっている。目詰まりを起こさずかつ交換不要なフィルターエレメントが要望されている。 Conventionally, filter cloths and filter papers are used as filter elements for filtering liquids and gases, but filter cloths and filter papers are clogged by the material to be filtered, so they need to be replaced periodically, and running costs are incurred. . There is a need for a filter element that does not clog and does not require replacement.
目詰まりを起こさず交換不要なフィルターエレメントとして下記特許文献１および特許文献２がありコイルバネ型のものが開示されている。 As filter elements that do not cause clogging and need not be replaced, there are the following Patent Documents 1 and 2, and a coil spring type is disclosed.
特許文献１には、予め略等ピッチに突部を形成した弾力性を有する線材を螺旋状に巻回したフィルターエレメントが開示されており、たしかに突起部による微少間隔で濾過でき、微少間隔を拡大することで目詰まりが解消されるが、突起物による微少間隔のみでは精密な濾過は出来ない。特許文献２には、コイル状のフィルターエレメントの間隙部にケイソウ土や活性炭粉末などの濾過助剤を付着させることで精密濾過を可能にしているが、濾過を行うと被濾過物と濾過助剤が混ざるため、これらを分離することが極めて困難なため、濾過助剤を被濾過物と伴に廃棄しなければならず、濾過助剤が消耗品となる欠点がある。 Patent Document 1 discloses a filter element in which elastic wire rods having protrusions formed at substantially equal pitches in advance are spirally wound, and can be filtered at a minute interval by the protrusions, and the minute interval is expanded. By doing so, clogging is eliminated, but precise filtration cannot be performed only with a minute interval due to protrusions. In Patent Document 2, fine filtration is possible by attaching a filter aid such as diatomaceous earth or activated carbon powder to the gap between coiled filter elements. Therefore, it is very difficult to separate them, so that the filter aid must be discarded together with the material to be filtered, and the filter aid becomes a consumable item.
そこで、本発明は上記課題を鑑み、消耗品が無くかつ恒久的に精密濾過を可能にするバネ式フィルター用濾過助線およびフィルターエレメントを提供することを目的とする。 SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a spring filter filter auxiliary wire and a filter element that are free from consumables and enable permanent microfiltration permanently.
本発明者らは、上記課題について精意研究を重ねた結果、恒久的に精密濾過が行え、かつ被濾過物との分離が容易な濾過助線を新規に考案し、本発明を完成させるに至った。 As a result of extensive research on the above problems, the present inventors have devised a filter auxiliary line that can be permanently microfiltered and can be easily separated from an object to be filtered, thereby completing the present invention. It came.
即ち、本発明では断面積が０．０３ｍｍ２超え、２．０ｍｍ２未満であり、５〜２００μｍの凹部及び凸部を有する靱性を備えた線材であることを特徴とするバネ式フィルター用濾過助線が提供される。 That is, the cross-sectional area 0.03 mm 2 beyond the present invention, less than 2.0 mm 2, a spring-type filter for filtration aid, which is a wire having a toughness having recesses and protrusions of 5~200μm A line is provided.
この線材では凹部と凸部が線材上の同じ箇所において正位又は位相９０度でずれて存在することが好ましい。 In this wire, it is preferable that the concave portion and the convex portion are present at the same position on the wire and shifted by a normal position or a phase of 90 degrees.
また本発明の他の一観点にかかるフィルターエレメントは、バネ式フィルター用濾過助線を、等ピッチに突部を形成した弾力性を有する線材を螺旋状に巻回した巻バネからなる筒状筐体の外周に沿って完全に覆うようにかつ各線材の凹凸部がランダムに位置するよう設置したことを特徴とする。 In addition, a filter element according to another aspect of the present invention is a cylindrical housing comprising a spring-type filter auxiliary wire, and a spiral spring in which an elastic wire having a protrusion formed at an equal pitch is spirally wound. It is characterized in that it is installed so as to completely cover the outer periphery of the body and the uneven portions of each wire are randomly located.
以上、本発明により、恒久的に使える濾過助線と消耗品がなく精密濾過が行えるバネ式フィルターエレメントが提供でき、目詰まりを起こさずかつ交換不要なフィルターエレメントが達成される。 As described above, according to the present invention, it is possible to provide a filter element that can be permanently filtered and a spring-type filter element that can perform fine filtration without consumables, and a filter element that does not cause clogging and that does not require replacement is achieved.
以下、本発明の実施の形態について図面を用いて詳細に説明するが、本発明は多くの異なる形態が実施可能であり、以下に示す実施形態、実施例の記載のみに限定されるものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention can be implemented in many different forms, and is not limited to the description of the following embodiments and examples. .
本実施形態は、バネ式フィルター用濾過助線およびフィルターエレメントに関するものである。 The present embodiment relates to a filter aid for a spring type filter and a filter element.
（バネ式フィルター用濾過助線）
本実施形態に係るバネ式フィルター用濾過助線は、断面積が０．０３ｍｍ２超え、２．０ｍｍ２未満であり、５〜２００μｍの凹凸部を有する靱性を備えた線材であることを特徴とする。
(Filtration auxiliary wire for spring type filter)
Spring-type filter for filtration aid line according to the present embodiment is greater than the cross-sectional area 0.03 mm 2, less than 2.0 mm 2, and characterized in that the wire having a toughness having an uneven portion of 5~200μm To do.
線材の断面積が０．０３ｍｍ２以下であるとフィルターエレメントに使用する助線本数が多くなり高コストになると伴に後述する逆洗浄時の被濾過物との分離が困難になる。断面積が２．０ｍｍ２以上であると、線材が重くなり、フィルターエレメントの重量が過大になると伴に逆洗浄時の洗浄圧力も大きくする必要があり、強力なポンプを使用することになりコスト高になる。 When the cross-sectional area of the wire is 0.03 mm 2 or less, the number of auxiliary wires used for the filter element increases and the cost becomes high, and separation from an object to be filtered at the time of backwashing described later becomes difficult. If the cross-sectional area is 2.0 mm 2 or more, the wire becomes heavier, and if the weight of the filter element becomes excessive, it is necessary to increase the washing pressure at the time of back washing. Become high.
より好ましい線材の断面積は０．１ｍｍ２超え、１．０ｍｍ２未満である。 Sectional area of the more preferred wire is 0.1 mm 2 greater than, less than 1.0 mm 2.
本発明における凹凸部とは、図１に示す線材基準表面からのへこみおよび盛り上がりを指し、その高さ（低さ）を５〜２００μｍとする。凹凸部が５μｍ以下では精密濾過は出来るが濾過量が小さくなるので好ましくない。凹凸部が２００μｍ以上では十分な濾過ができないので好ましくない。 The uneven | corrugated | grooved part in this invention points out the dent and swell from the wire-material reference | standard surface shown in FIG. 1, and makes the height (low) 5-200 micrometers. If the uneven portion is 5 μm or less, microfiltration can be performed, but the amount of filtration becomes small, which is not preferable. If the uneven portion is 200 μm or more, sufficient filtration cannot be performed, which is not preferable.
より好ましい凹凸部は１０〜１００μｍである。 A more preferable uneven | corrugated | grooved part is 10-100 micrometers.
線材は濾過時に縮み（バネ式フィルターに密着し）、逆洗浄時に伸び（膨らみ）、かつ多少の衝撃では破壊しない靱性をもつ素材が好ましく、ステンレススチールやチタン等の金属、ポリエチレン、ポリプロピレン、ポリエチレンテレフタレート等の有機高分子、強化ガラスなどのセラミックを用いる事ができるが、特に素材を限定するものではない。 The wire is preferably a material that shrinks during filtration (adheres to the spring-type filter), stretches (swells) during backwashing, and has a toughness that does not break under some impact. Metals such as stainless steel and titanium, polyethylene, polypropylene, polyethylene terephthalate Organic polymers such as tempered glass and ceramics can be used, but the material is not particularly limited.
本発明の助線では図１に示す様に、凹部と凸部が線材上の同じ箇所において正位又は位相９０度でずれて存在することが好ましい。この形状は線材を圧延やプレス等の加工方法で凹部を形成させた場合に、質量保存の法則により凹部面から９０度ずれた面が凸部となった状態であり、極めて低コストで凹部及び凸部を形成させたものなので特に好ましい。特に軸方向に平行に複数の溝を有するローラーを用い、線材を挟み込んで圧延する方法が好ましい。 In the auxiliary wire of the present invention, as shown in FIG. 1, it is preferable that the concave portion and the convex portion are present at the same position on the wire and shifted by a normal position or a phase of 90 degrees. This shape is a state in which when the concave portion is formed by a processing method such as rolling or pressing the wire, the surface shifted by 90 degrees from the concave surface due to the law of conservation of mass becomes a convex portion. This is particularly preferable because it is formed with convex portions. In particular, a method in which a roller having a plurality of grooves parallel to the axial direction is used and the wire is sandwiched and rolled is preferable.
線材への凹凸部の形成は圧延やプレスに限らず任意の方法で行えば良い。凹部の形成は、切削やエッチング等でも行え、凸部の形成は肉盛り溶接や接合、接着などでも行うことができる、これら方法は加工工程が煩雑でコストが高い点が問題である。 The formation of the concavo-convex portion on the wire is not limited to rolling or pressing, and may be performed by any method. The concave portion can be formed by cutting, etching, or the like, and the convex portion can be formed by overlay welding, joining, bonding, or the like. These methods have a problem in that the processing steps are complicated and the cost is high.
（フィルターエレメント）
本実施形態に係るフィルターエレメントは、等ピッチに突部を形成した弾力性を有する線材を螺旋状に巻回した巻バネからなる筒状筐体の外周に沿って完全に覆うようにかつ各線材の凹凸部がランダムに位置するよう設置したことを特徴とする。巻バネからなる筒状筐体を完全に覆うためには、フィルターエレメント濾過助線を１００本以上、好ましくは２００本以上設置することが好ましいが、特に本数を制限するものではない。
(Filter element)
The filter element according to the present embodiment covers each wire rod so as to completely cover the outer periphery of a cylindrical casing made of a winding spring spirally wound with a wire rod having elasticity with protrusions formed at an equal pitch. It is characterized in that it is installed so that the uneven parts of the are located at random. In order to completely cover the cylindrical casing made of the winding spring, it is preferable to install 100 or more, preferably 200 or more filter element filtration aid wires, but the number is not particularly limited.
従来のバネ式フィルターは、円弧状外面に突起部を有する素材がコイル状に巻回された表面が濾過面積となり、突起によって形成される間隙サイズが正確に決まる。バネ式フィルターの外周面に濾過助剤をプリコートすることで濾過空隙を微細にでき精密濾過が可能になる。被濾過物が多くなると目詰まりを生じるが、目詰まり状態になった時にはフィルターエレメントの内側中空部からコイル外側へ向けて逆流させるかあるいは圧縮空気等を流す、即ち逆洗浄を行うことで濾過助剤が被濾過物と伴に空隙から外れ目詰まりが解消され、濾過助剤と被濾過物の混合物は廃棄処理される。（図２） In the conventional spring-type filter, the surface on which the material having protrusions on the arcuate outer surface is wound in a coil shape becomes the filtration area, and the size of the gap formed by the protrusions is accurately determined. By pre-coating a filter aid on the outer peripheral surface of the spring type filter, the filtration gap can be made fine and fine filtration becomes possible. Clogging may occur when the amount of the material to be filtered increases, but when clogged, the filter element may be backflowed from the inner hollow part of the filter element toward the outside of the coil, or by flowing compressed air or the like, that is, backwashing. The agent is removed from the gap together with the material to be filtered, and the clogging is eliminated, and the mixture of the filter aid and the material to be filtered is discarded. (Figure 2)
本発明の濾過助線を用いたフィルターエレメントは、巻バネからなる筒状筐体の外周に沿って設置され、筐体上下に線材端が固定されている。線材の凹凸部が濾過助剤と同じ作用を発揮するので濾過空隙を微細にでき精密濾過が可能になる。被濾過物が多くなり目詰まり状態になった時には逆洗浄により被濾過物が空隙から外れ目詰まりが容易に解消される。この際、助線は逆洗浄圧力により延びて（膨らみ）線間隔を開き被濾過物の離脱を容易にするが助線自体は筐体から外れることがなく、恒久的に繰り返し濾過を続けることが出来る。（図３） The filter element using the filtration auxiliary wire of the present invention is installed along the outer periphery of a cylindrical casing made of a winding spring, and the ends of the wire are fixed on the top and bottom of the casing. Since the uneven portion of the wire exhibits the same action as the filter aid, the filtration gap can be made fine and precision filtration becomes possible. When the amount of objects to be filtered increases and becomes clogged, the objects to be filtered are removed from the gaps by back washing, and the clogging is easily eliminated. At this time, the auxiliary line is extended (backed up) by backwashing pressure to open the line interval and facilitate the removal of the object to be filtered. I can do it. (Figure 3)
以下、上記実施形態において説明したバネ式フィルター用濾過助線およびフィルターエレメントについて実際に作成し、本発明の効果を確認した。以下に本発明の実施例について詳しく説明するが、本発明はこれらの範囲に限定されるものではない。 Hereinafter, the filter auxiliary wire for a spring type filter and the filter element described in the above embodiment were actually created to confirm the effect of the present invention. Examples of the present invention will be described in detail below, but the present invention is not limited to these ranges.
（実施例１）
ステンレススチール（ＳＵＳ３０４）の直径1mmの線材（断面積０．７９mm２）を、プレスによって間隔３mmで２０μmの凹凸を連続的に形成させた助線を作成した。この助線を巻バネからなる筒状筐体の外周に沿って２００本設置したフィルターエレメントを作成し、０．５〜３０μｍの固形物で懸濁した汚水を濾過した。
Example 1
An auxiliary wire was formed by continuously forming 20 μm irregularities with a spacing of 3 mm from a wire rod (cross-sectional area 0.79 mm2) of stainless steel (SUS304) having a diameter of 1 mm. A filter element in which 200 auxiliary wires were installed along the outer periphery of a cylindrical casing made of a winding spring was created, and sewage suspended in a solid of 0.5 to 30 μm was filtered.
（比較例１）
実施例と同じ巻バネからなる筒状筐体を用い、濾過助剤としてケイソウ土を用い、実施例と同じ汚水を濾過した。
(Comparative Example 1)
The same sewage as in the example was filtered using a cylindrical housing made of the same spring as in the example and using diatomaceous earth as a filter aid.
実施例１と比較例１の濾過処理結果を表１に示す。
実施例１と比較例１の濾過結果を示した表１から分かるように、本発明のバネ式フィルター用濾過助線およびフィルターエレメントでは濾過能力、逆洗浄時間が同等で、補給助剤（消耗品）が不要で連続濾過できることが分かる。 As can be seen from Table 1 showing the filtration results of Example 1 and Comparative Example 1, the filtration aid for spring type filter and the filter element of the present invention have the same filtration capacity and backwash time, and supply aid (consumables) ) Is unnecessary and it can be seen that continuous filtration is possible.
本発明は、汚水処理や浄化処理などの公共的用途、および粉塵除去などの産業上用途において広く利用でき、特に、交換品や消耗品がなく恒久的に連続濾過できるものとして様々な用途に応用が可能である。 The present invention can be widely used in public uses such as sewage treatment and purification treatment, and industrial uses such as dust removal, and in particular, it can be used for various uses as it can be permanently filtered without replacements or consumables. Is possible.
１…バネフィルターエレメント
２…芯金
３…トップ金具
４…ボトム金具
５…濾過助剤
６…被濾過物
７…助線
DESCRIPTION OF SYMBOLS 1 ... Spring filter element 2 ... Core metal 3 ... Top metal fitting 4 ... Bottom metal fitting 5 ... Filter aid 6 ... Filtered object 7 ... Auxiliary wire
Claims (2)
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| JP2009065524A JP5435702B2 (en) | 2009-02-14 | 2009-03-18 | Filter aid and filter element for spring type filter |
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| JP2009032087 | 2009-02-14 | ||
| JP2009032087 | 2009-02-14 | ||
| JP2009065524A JP5435702B2 (en) | 2009-02-14 | 2009-03-18 | Filter aid and filter element for spring type filter |
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| JP2010207790A JP2010207790A (en) | 2010-09-24 |
| JP5435702B2 true JP5435702B2 (en) | 2014-03-05 |
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| JP6118503B2 (en) * | 2012-03-11 | 2017-04-19 | 株式会社モノベエンジニアリング | Filter element and filtration device using the same |
| JP6217016B2 (en) * | 2013-05-30 | 2017-10-25 | 集塵装置株式会社 | Exhaust gas treatment system |
| JP6773284B2 (en) * | 2016-11-28 | 2020-10-21 | 清水建設株式会社 | Algae-containing liquid concentration method, algae recovery method, algae concentration system, and algae recovery system |
| JP2020006281A (en) * | 2018-07-03 | 2020-01-16 | 清水建設株式会社 | Filtration device and filtration method |
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| JPS55116418A (en) * | 1979-02-28 | 1980-09-08 | Totoku Electric Co Ltd | Filter and producing method thereof |
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