JP5793351B2

JP5793351B2 - Filtration device

Info

Publication number: JP5793351B2
Application number: JP2011134068A
Authority: JP
Inventors: 卓也細谷
Original assignee: 株式会社トーケミ
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2015-10-14
Anticipated expiration: 2031-06-16
Also published as: CN102824766A; JP2013000653A

Description

本発明は、用水、廃水その他の原水から濁質を捕捉するために用いるろ過装置に関するものである。 The present invention relates to a filtration device used for capturing turbidity from irrigation water, wastewater or other raw water.

ろ過室内に、原水の流れ方向に沿って長い繊維ろ材を充填してろ過装置を構成したものとして、ろ材の下端を前記ろ過室を構成する多孔板に止着し、前記ろ材の上方に浮上性ろ材を配した構造のもの（例えば、特許文献１）や、前記ろ材の上下両端を多孔板等のろ過室構成材に止着した構造のもの（例えば、特許文献２）がある。 As the filter device is configured by filling the filter chamber with a long fiber filter medium along the flow direction of the raw water, the lower end of the filter medium is fixed to the perforated plate constituting the filter chamber and floats above the filter medium There is a structure in which a filter medium is arranged (for example, Patent Document 1) and a structure in which the upper and lower ends of the filter medium are fixed to a filter chamber constituting material such as a perforated plate (for example, Patent Document 2).

特開２００３−２６５９０７号公報JP 2003-265907 A 特開２００２−４５６１２号公報JP 2002-45612 A

前記従来例中、前者のものは、浮上性ろ材で濁質中の大きなものを、繊維ろ材で小さなものをそれぞれ捕捉するようにしてろ過効率を図るものであるが、繊維ろ材は下端側のみが固定された構成を採るため、原水の流れによって生じる圧密状態が均一になりにくいばかりでなく、空隙が生じ、原水が該空隙を通じて短絡流となって流れ、ろ過機能が損われる場合がある。 In the above-mentioned conventional example, the former one is intended to increase the filtration efficiency by capturing the large one in the suspended matter with the floating filter medium and the small one with the fiber filter medium, but the fiber filter medium has only the lower end side. Since the fixed structure is adopted, not only is the compacted state caused by the flow of raw water difficult to be uniform, but also voids are generated, and the raw water flows as a short-circuit flow through the voids, which may impair the filtration function.

また、後者の場合は、繊維ろ材の上下両端が固定されているので、各ろ材の原水の流れに因る位置関係は比較的安定して均一な圧密状態を得られるが、それでも、ろ過速度が高速になった場合やろ材のろ過室内での充填態様によっては、ろ材間やろ材とろ過室側壁との境界に空隙ができる場合がある。また、後者の場合は、芯材の周側に濁質の捕捉材を突出させて繊維ろ材を構成しているので、捕捉材は芯材部周辺より離れた部分が芯材部周辺より空いた状態となり、これら空隙や空いた部分を通じて原水が流れて短絡し、ろ過機能が低減する場合がある。 In the latter case, since the upper and lower ends of the fiber filter medium are fixed, the positional relationship of each filter medium due to the flow of raw water is relatively stable and a uniform consolidated state can be obtained. Depending on the speed of the filter medium and the manner in which the filter medium is filled in the filtration chamber, a gap may be formed between the filter media or at the boundary between the filter medium and the filtration chamber side wall. In the latter case, the fiber trapping medium is formed by projecting the turbid trapping material on the peripheral side of the core material, so that the part of the trapping material away from the periphery of the core material part is vacant from the periphery of the core material part. In some cases, the raw water flows through these gaps and vacant parts and short-circuits to reduce the filtration function.

本発明は従来例の斯様な欠点に着目し、短絡流の発生をできるだけ防ぎ、ろ過機能の優れたろ過装置を提供することを目的として創案したものである。 The present invention has been devised for the purpose of providing a filtration device that prevents the occurrence of short-circuit flow as much as possible and has an excellent filtration function, paying attention to such drawbacks of the conventional example.

上記課題を解決するため、本発明に係るろ過装置は、ろ材支持床を構成する多孔板と該多孔板に原水の流れ方向に相対する上流側の多孔板との間のろ過室に、適量の繊維ろ材を、一端を前記多孔板に、他端を前記上流側の多孔板に止着して充填すると共に、前記繊維ろ材は、前記ろ過室の、原水の流れ方向の長さより所定量長い、紐状の芯材と、該芯材の周側より無数のループ状にして放射状に突出させた、無数のウーリー加工した樹脂繊維で構成し、前記芯材は、ウーリー加工した撚り糸を素材とした組紐で成る筒状の外材と、その筒状の外材の内側に嵌挿して接着した平打紐で成る補強芯とで成る一方、前記樹脂繊維は前記筒状の外材の構成糸を成す繊維の一部を、当該外材からループ状に引き出して形成したものでなり、前記芯材には、周側に前記樹脂繊維のない芯材だけの部分を所定量の長さ設けた構成とする。 In order to solve the above-mentioned problems, a filtration device according to the present invention has an appropriate amount of filtration in a filtration chamber between a porous plate constituting a filter medium support bed and an upstream porous plate facing the porous plate in the flow direction of raw water. Filling the fiber filter medium with one end fixed to the porous plate and the other end fixed to the upstream porous plate, the fiber filter medium is longer by a predetermined amount than the length of the filtration chamber in the flow direction of raw water, Consists of a cord-like core material and countless Wooled resin fibers that are projected in a number of loops from the peripheral side of the core material, and the core material is made of a Wooled twisted yarn. A cylindrical outer member made of braid and a reinforcing core made of a flat strut that is inserted into and adhered to the inner side of the cylindrical outer member, while the resin fiber is one of the fibers constituting the constituent yarn of the cylindrical outer member. the parts made with those formed by the drawer from the outer member in a loop, said core material The portion of only the resin fibers with no core material on the peripheral side a structure provided the length of the predetermined amount.

なお、濁質捕捉材としての樹脂繊維中にはウーリー加工していない樹脂繊維を、濁質捕捉機能が損われない程度の量にして混ぜてあっても不都合はない。 In addition, there is no inconvenience even if resin fibers not subjected to Woolley processing are mixed in the resin fibers as the turbidity trapping material in an amount that does not impair the turbidity trapping function.

本発明によれば、ウーリー加工した樹脂繊維で成り、かつ、無数のループ状にして、芯材の周側より放射状に突出したもので濁質捕捉材を構成するものであるから、ろ過室内は、ろ材が均一で、密な状態で充填され、ろ過操作効率の優れたろ過装置を提供できる。 According to the present invention, the filtration chamber is composed of resin fibers processed by Woolley, and innumerable loops, and the turbidity trapping material is configured to protrude radially from the peripheral side of the core material. The filter medium is uniform and packed in a dense state, and a filtration device with excellent filtration operation efficiency can be provided.

また、多孔板と上流側の多孔板との離開距離に対して、濁質捕捉材となる樹脂繊維のない芯材だけの部分を適量の長さにすることにより、樹脂繊維の圧密状態の調整を行え、従って、常に安定した状態でろ過操作を行うことができる。 In addition, by adjusting the length of the core material without the resin fiber that becomes the turbidity trapping material to an appropriate length with respect to the separation distance between the porous plate and the upstream porous plate, adjustment of the resin fiber compaction state Therefore, the filtration operation can be performed in a stable state at all times.

本発明装置の略示断面図。The schematic sectional drawing of this invention apparatus. 繊維ろ材の芯材と樹脂繊維の関係を示す説明図。Explanatory drawing which shows the relationship between the core material of a fiber filter medium, and a resin fiber.

図面は本発明に係るろ過装置の一実施形態を示し、図中、１はろ過室で、ろ過室１は、ろ過槽１Ａの内壁１Ａ´と、ろ過槽１Ａ内に敷設したろ材支持床を構成する多孔板２および該多孔板２に相対向させて前記ろ過槽１Ａ内に設けた上側多孔板３で前記ろ過槽１Ａ内を区画して構成する。なお、ろ過槽１Ａは、上流側に原水の注入口（洗浄用の水や空気の排出口を兼ねる）２１を、下流側にろ過処理水の排出口（洗浄水の注水口を兼ねる）２２と洗浄用空気の注入口２３をそれぞれ備え、これらを前記ろ過室１に連通させてある（公知）。 The drawings show an embodiment of the filtration device according to the present invention, in which 1 is a filtration chamber, and the filtration chamber 1 is composed of an inner wall 1A 'of the filtration tank 1A and a filter medium support floor laid in the filtration tank 1A. The filtration tank 1A is partitioned by a perforated plate 2 and an upper perforated plate 3 provided in the filtration tank 1A so as to face each other. The filtration tank 1A has an inlet for raw water (also serving as an outlet for washing water and air) 21 on the upstream side and an outlet for filtered water (also serves as an inlet for washing water) 22 on the downstream side. Each is provided with an inlet 23 for cleaning air, which is communicated with the filtration chamber 1 (known).

このろ過室１には、適宜数の、長い樹脂繊維を主要素材とする原水の流れ方向に沿って長い繊維ろ材４を収設してろ過操作を行うようにしてある。 In this filtration chamber 1, an appropriate number of long fiber filter media 4 are accommodated along the flow direction of raw water whose main material is long resin fibers, and the filtration operation is performed.

ろ材４は、紐状の芯材４０を該芯材４０の周側より突出させた、濁質捕捉材を構成する無数の樹脂繊維４１，…で構成する。 The filter medium 4 is composed of innumerable resin fibers 41,... Constituting a turbidity trapping material in which a string-like core material 40 is protruded from the peripheral side of the core material 40.

芯材４０は、ウーリー加工した（ちぢれて嵩高となり、伸縮性を備え、風合いがソフトな）ポリプロピレン繊維で成る径が略４ｍｍの撚り糸を素材とした組（編）紐で成る筒状の外材４０ａと、外材４０ａの内側に嵌挿して接着した平打紐で成る補強芯４０ｂとで成り、樹脂繊維４１は前記外材４０ａの構成糸を成す前記ポリプロピレン繊維（糸径８８μｍ）の一部を、外材４０ａからループ状に引き出して形成したものである。 The core member 40 is a tubular outer member 40a made of a braided (knitted) string made of a twisted yarn having a diameter of about 4 mm made of a woolen polypropylene fiber that is made of wooly (wrinkled and bulky, has elasticity, and has a soft texture). And a reinforcing core 40b made of a flat string that is inserted into and bonded to the inside of the outer member 40a, and the resin fiber 41 is a part of the polypropylene fiber (yarn diameter 88 μm) constituting the constituent yarn of the outer member 40a. It is formed by pulling out from a loop.

実施形態の芯材４０と樹脂繊維４１は上記の関係にあるが、これらで成るろ材４は、例えば、補強芯４０ｂを省略する等実施形態に限定する必要はない。 Although the core material 40 and the resin fiber 41 of the embodiment have the above-described relationship, the filter medium 4 made of these does not need to be limited to the embodiment, for example, omitting the reinforcing core 40b.

実施形態は、濁質捕捉材の素材としてポリプロピレン繊維（ウーリー加工した）を用いているが、ウーリー加工した、ナイロン、ポリ塩化ビニルデンその他の樹脂繊維を用いることができ、糸径は上記数値のものに限定する必要はない。 In the embodiment, polypropylene fiber (Wooled) is used as a material for the turbidity trapping material, but Wooled nylon, polyvinylidene chloride and other resin fibers can be used, and the thread diameter is the above numerical value. It is not necessary to limit to.

また、実施形態の場合、芯材４０の周側に樹脂繊維４１，…のない芯材４０だけの部分４０´を設けて、芯材４０の長さを前記多孔板２と上流側の多孔板３との離開距離より長くし、その余長分を利用して樹脂繊維４１，…の圧密状態を得られるようにしてあるが、芯材４０の末端に芯材だけの部分４０´を、接着などの適宜手段で接続して構成しても差し支えはない。 In the case of the embodiment, a portion 40 ′ having only the core material 40 without the resin fibers 41,... Is provided on the peripheral side of the core material 40, and the length of the core material 40 is set to the porous plate 2 and the upstream porous plate. 3 is made longer than the separation distance and the excess length is used to obtain a compacted state of the resin fibers 41.... There is no problem even if they are connected by appropriate means such as.

この芯材だけの部分４０´は、その長さを調節することによりろ材４すなわち樹脂繊維４１の圧密状態を調整できる。 This core material only portion 40 ′ can adjust the compaction state of the filter medium 4, that is, the resin fibers 41 by adjusting the length thereof.

実施形態では、芯材だけの部分４０´を、原水の上流側に設けてあるが、下流側や芯材４０の長手方向の中間部に設けても不都合はない。 In the embodiment, the portion 40 ′ only for the core material is provided on the upstream side of the raw water, but there is no problem even if it is provided on the downstream side or in the middle portion in the longitudinal direction of the core material 40.

そして、芯材４０の下端部（図面上）を前記多孔板２に、上端部を前記上側多孔板３にそれぞれ取付け手段６（結んだり、係止したりして多孔板２，３に接続することをいう）で止着し、ろ過室１に必要にして充分な数のろ材４を並設して本発明に係るろ過装置を得られる。 Then, the lower end portion (on the drawing) of the core member 40 is connected to the perforated plate 2 and the upper end portion is connected to the upper perforated plate 3 and attached to the perforated plates 2 and 3 by attaching or locking the attachment means 6. The filtration apparatus according to the present invention can be obtained by arranging a sufficient number of filter media 4 in the filtration chamber 1 in parallel.

ろ過槽１Ａの注入口２１を通じて原水（未処理水）を圧入すると、原水はろ材４を通過して排出口２２から処理水として回収され、このろ過操作時（原水処理時）に、ろ材４の樹脂繊維４１，…は原水によって圧密になろうとするが、芯材４０の両端が多孔板２と上流側多孔板３に止着されているので、予め設定した以上の圧密にならずにろ過操作が行われる。 When raw water (untreated water) is press-fitted through the inlet 21 of the filtration tank 1A, the raw water passes through the filter medium 4 and is collected as treated water from the discharge port 22, and during the filtering operation (raw water treatment), The resin fibers 41,... Try to be consolidated by the raw water, but the both ends of the core material 40 are fixed to the porous plate 2 and the upstream porous plate 3, so that the filtration operation does not become more compact than preset. Is done.

なお、実施形態は、原水を下向流にしてろ過操作を行うようにしてあるが、その逆、すなわち、上向流にして原水を流すようにした装置においても本発明は実施できる。 In the embodiment, the filtration operation is carried out with the raw water flowing downward, but the present invention can also be carried out in an apparatus that reverses the flow, that is, the raw water is made to flow upward.

また、ウーリー加工した樹脂繊維中にウーリー加工しない樹脂繊維を混合しても不都合はない。その場合、濁質捕捉機能が損われない程度にすべきことは勿論である。そして、濁質の捕捉の程度を目視するという意味でウーリー加工した樹脂繊維を白色にし、ウーリー加工しない樹脂繊維を青色か緑色などの有彩色を施したものを用いることにより、当該ろ材４の種別の表示手段として利用できる。 Moreover, there is no inconvenience even if resin fibers that are not Wooled are mixed with Wooled resin fibers. In that case, it is needless to say that the turbidity trapping function should not be impaired. Then, the resin fiber that has been subjected to wooly processing in the sense of visually checking the degree of trapping of turbidity is white, and the resin fiber that is not woolly processed is provided with a chromatic color such as blue or green. It can be used as a display means.

１ろ過室
２多孔板
３上流側の多孔板
４繊維ろ材
４０芯材
４１樹脂繊維
４０´ 芯材だけの部分 DESCRIPTION OF SYMBOLS 1 Filtration chamber 2 Perforated plate 3 Upstream perforated plate 4 Fiber filter medium 40 Core material 41 Resin fiber 40 'Part only of core material

Claims

ろ材支持床を構成する多孔板と該多孔板に原水の流れ方向に相対する上流側の多孔板との間のろ過室に、適量の繊維ろ材を、一端を前記多孔板に、他端を前記上流側の多孔板に止着して充填すると共に、前記繊維ろ材は、前記ろ過室の、原水の流れ方向の長さより所定量長い、紐状の芯材と、該芯材の周側より無数のループ状にして放射状に突出させた、無数のウーリー加工した樹脂繊維で構成し、
前記芯材は、ウーリー加工した撚り糸を素材とした組紐で成る筒状の外材と、その筒状の外材の内側に嵌挿して接着した平打紐で成る補強芯とで成る一方、
前記樹脂繊維は前記筒状の外材の構成糸を成す繊維の一部を、当該外材からループ状に引き出して形成したものでなり、
前記芯材には、周側に前記樹脂繊維のない芯材だけの部分を所定量の長さ設けた、ろ過装置。 In the filtration chamber between the perforated plate constituting the filter medium supporting bed and the upstream perforated plate opposite to the perforated plate in the flow direction of the raw water, an appropriate amount of fiber filter media, one end of the perforated plate and the other end of the perforated plate The fiber filter medium is fixed to the upstream perforated plate, and the fiber filter medium is longer than the length of the filtration chamber in the flow direction of the raw water by a predetermined amount, and innumerable from the peripheral side of the core material Consists of innumerable woolly processed resin fibers that are projected in a radial pattern
The core material is composed of a cylindrical outer material made of braided cords made of Wooled twisted yarn, and a reinforcing core made of a flat strut that is inserted and bonded inside the cylindrical outer material,
The resin fiber is formed by pulling out a part of the fiber constituting the cylindrical outer material from the outer material in a loop shape,
The filtration device, wherein the core material is provided with a predetermined length of a portion of the core material without the resin fiber on the circumferential side.