JP5344350B2 - Filter cloth for filter press and method for treating industrial waste using the same - Google Patents

Filter cloth for filter press and method for treating industrial waste using the same Download PDF

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JP5344350B2
JP5344350B2 JP2010147905A JP2010147905A JP5344350B2 JP 5344350 B2 JP5344350 B2 JP 5344350B2 JP 2010147905 A JP2010147905 A JP 2010147905A JP 2010147905 A JP2010147905 A JP 2010147905A JP 5344350 B2 JP5344350 B2 JP 5344350B2
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cloth
filter cloth
filter
liquid supply
press
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JP2012011278A (en
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田中克巳
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Toho Titanium Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a new filter cloth structure used for a filter press drastically improving the service life of filter cloth as compared to the prior art by applying the filter cloth to the filter press, and to provide a method for treating industrial waste using the same. <P>SOLUTION: In this filter cloth structure used for the filter press, particularly, the filler cloth engaging the filter cloth and a liquid supply member constituting the filter cloth is configured to be long sideways. As a result, as compared to a conventional method, effect of drastically improving the service life of the filter cloth can be achieved. The liquid supply member constituting the filter cloth consists of a cylindrical member with flanges disposed in both the ends, and each flange is expanded to the outside. As a result, adhesion between the filter cloth, the liquid supply member, and the filler cloth can be enhanced, so that effect of enhancing filtration efficiency is achieved. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

本発明は、フィルタープレスのろ布およびこれを用いた産業廃棄物の処理方法に関し、特に、フィルタープレスの寿命延長に関する。  The present invention relates to a filter press filter cloth and an industrial waste treatment method using the filter cloth, and more particularly to extending the life of the filter press.

フィルタープレスは、水分の多い廃棄物スラリーの脱水装置として広く使用されている。フィルタープレスは、ろ布と呼ばれているろ過膜とこれらを圧縮する圧搾板および圧搾板を稼動させることができる油圧設備を具備している。  The filter press is widely used as a dewatering device for waste slurry having a high water content. The filter press includes a filtration membrane called a filter cloth, a pressing plate that compresses them, and a hydraulic equipment that can operate the pressing plate.

図５は、従来のフィルタープレス用のろ布構造（特許文献１；特開２００４−２０２３１７号）を表している。フィルタープレス用のろ布は、鉛直方向に複数配置されており、ろ布の中心部に設けた通孔１０と呼ばれる開口部より、廃棄物スラリーが各ろ布に供給されるように構成されている。  FIG. 5 shows a conventional filter cloth structure for a filter press (Patent Document 1; Japanese Patent Application Laid-Open No. 2004-202317). A plurality of filter press filter cloths are arranged in the vertical direction, and are configured such that waste slurry is supplied to each filter cloth from an opening called a through hole 10 provided in the center of the filter cloth. Yes.

各ろ布４の中心部に設けた開口部には、同開口部の形状を保持するための給液板５と呼ばれる部品がろ布に装着されており、更に、給液板５とろ布４とは、更に当布１１と呼ばれるろ布とは別の布を用いて、ろ布に装着されている。  In the opening provided at the center of each filter cloth 4, a part called a liquid supply plate 5 for holding the shape of the opening is mounted on the filter cloth, and further, the liquid supply plate 5 and the filter cloth 4. Is attached to the filter cloth using a cloth different from the filter cloth called the cloth 11.

給液板５と当布１１およびろ布４は、糸を用いてこれらの部品が縫合する形で装着されている。
前記したように、ろ布とろ布の間に補給された廃棄物スラリーは、図示しない圧搾板を介して圧縮力を受けたろ布の間に補給されたスラリーを脱水することができる。
その結果、
ろ布には大きな応力が印加されるために、当布に対して部分的な引っ張りを受けて、当布やろ布の裂け目を生起する場合があり改善が求められていた。The liquid supply plate 5, the cloth 11 and the filter cloth 4 are mounted in such a manner that these parts are sewn using a thread.
As described above, the waste slurry replenished between the filter cloths can dehydrate the slurry replenished between the filter cloths subjected to a compressive force through a pressing plate (not shown).
as a result,
Since a large stress is applied to the filter cloth, the filter cloth may be partially pulled to cause a tear of the cloth or the filter cloth.

これらの点については、例えば、ろ布とろ布の間に介装させる圧搾板を上下方向に可動可能なように配設することにより、ろ布の破れや裂け目の発生を回避する技術が開示されている（特許文献２；特開２００５−１５２８９７号）。しかしながら、これらの方法においても、当布のやろ布の裂け目の発生を抑制することができない場合があり、改善が求められている。  With regard to these points, for example, a technique for avoiding the tearing and tearing of the filter cloth by disposing the pressing plate interposed between the filter cloth so as to be movable in the vertical direction is disclosed. (Patent Document 2; JP-A-2005-152897). However, even in these methods, the occurrence of tears in the filter cloth may not be suppressed, and improvements are required.

また、別の公報には、給液板をろ布に装着する当布との縫合方法を工夫することにより、ろ布と当布との縫合部との伸縮性を付与させることにより、ろ布の裂け目や破れを回避する技術も知られている（特許文献３；特開２０００−１４０５１６号）。しかしながら、これらの方法でもってしても、ろ布の破れや裂け目の発生を完全に回避することができない場合があり、改善が求められている。  Further, another publication discloses that a filter cloth is provided by providing a stretchability between a filter cloth and a stitched portion of the cloth by devising a stitching method with the cloth that attaches the liquid supply plate to the filter cloth. A technique for avoiding tears and tears is also known (Patent Document 3; JP 2000-140516 A). However, even with these methods, it may not be possible to completely avoid the breakage and tearing of the filter cloth, and improvements are demanded.

このように、廃棄物処理用のフィルタープレスに用いるろ布の寿命を効果的に延命することができるようなろ布構造が求められている。  Thus, there is a need for a filter cloth structure that can effectively extend the life of a filter cloth used in a filter press for waste treatment.

特開２００４−２０２３１７号JP 2004-202317 A 特開２００５−１５２８９７号JP 2005-152897 A 特開２０００−１４０５１６号JP 2000-140516 A

本発明は、フィルタープレスを用いた廃棄物処理に用いるろ布に対して、従来のろ布に比べて、寿命の長いろ布構造およびこれを用いた効率的な産業廃棄物処理方法を提供するものである。  The present invention provides a filter cloth structure having a longer life compared to a conventional filter cloth and an efficient industrial waste treatment method using the filter cloth used for waste treatment using a filter press. Is.

かかる実情に鑑み前記課題について、フィルタープレスに用いるろ布と給液板および当布との縫合方法や大きさ等を変えて、ろ布の穴開きや裂け目の発生について、種々試験を行い検討したところ、意外にも、前記ろ布と給液板との装着に使用する当布の形状と大きさを規定することにより、ろ布の破れや裂け目の発生を効果的に抑制することができると点を見出し、本願発明を完成するに至った。  In view of this situation, the above problems were examined by conducting various tests on the occurrence of perforations and tears in the filter cloth by changing the stitching method and size of the filter cloth and the liquid supply plate used in the filter press and the cloth. However, surprisingly, by prescribing the shape and size of the cloth used for mounting the filter cloth and the liquid supply plate, it is possible to effectively suppress the tearing and tearing of the filter cloth. A point was discovered and it came to complete this invention.

即ち、本願発明に係る廃棄物処理用のフィルタープレス用ろ布は、前記ろ布が、ろ過布と給液部材およびろ過布を係合する当布から構成されており、前記当布が横長に構成されていることを特徴とするものである。  That is, in the filter cloth for filter processing for waste treatment according to the present invention, the filter cloth is composed of a cloth that engages the filter cloth, the liquid supply member, and the filter cloth, and the cloth is horizontally long. It is characterized by being comprised.

本願発明に係る廃棄物処理用のフィルタープレス用ろ布は、上記給液部材が、鍔付の円筒状部品であって、前記鍔と円筒状部品との接合角が、鈍角に構成されていることを好ましい態様とするものである。  In the filter cloth for a filter press for waste treatment according to the present invention, the liquid supply member is a cylindrical part with a flange, and the joint angle between the flange and the cylindrical part is an obtuse angle. This is a preferred embodiment.

本願発明に係る廃棄物処理用のフィルタープレス用ろ布は、上述ろ布の形状が、楕円もしくは長方形であることを好ましい態様とするものである。  The filter cloth for filter processing for waste treatment according to the present invention has a preferable aspect in which the shape of the filter cloth is an ellipse or a rectangle.

本願発明に係る廃棄物処理用のフィルタープレス用ろ布は、上述のろ布の外周部が、外側に折り返されていることを好ましい態様とするものである。  The filter cloth for filter processing for waste treatment according to the present invention is a preferred embodiment in which the outer peripheral portion of the filter cloth is folded outward.

本願発明に係る廃棄物処理用のフィルタープレス用ろ布は、上述の当布の面積が、ろ布の中心部に形成された孔の面積に対して５倍以上とすることを好ましい態様とするものである。  The filter cloth for filter processing for waste treatment according to the present invention has a preferable aspect in which the area of the cloth is 5 times or more the area of the hole formed in the center of the filter cloth. Is.

本願発明に係る廃棄物処理用のフィルタープレス用ろ布は、当布が布で構成され、ろ布が樹脂で構成されていることを好ましい態様とするものである。  The filter cloth for filter processing for waste treatment according to the present invention has a preferable aspect in which the cloth is made of cloth and the filter cloth is made of resin.

本願発明に係る廃棄物処理方法は、上述のフィルタープレス用ろ布を、フィルタープレスに用いたことを特徴とするものである。  The waste disposal method according to the present invention is characterized in that the filter cloth for filter press described above is used for a filter press.

本願発明に係る廃棄物処理方法は、上述の給液部材の当布を縫合する際に用いる糸がウエーブ状に加工されていることを好ましい態様とするものである。  The waste disposal method according to the present invention is a preferred embodiment in which the yarn used for sewing the cloth of the liquid supply member is processed into a wave shape.

以上述べた特徴を有するろ布をフィルタープレスに用いることにより、ろ布の寿命を、従来のろ布に比べて、大幅に改善できるという効果を奏するものである。  By using the filter cloth having the characteristics described above for the filter press, the filter cloth life can be greatly improved as compared with the conventional filter cloth.

以上述べた本願発明に従えば、フィルタープレスの寿命を大幅に改善することができ、その結果、フィルタープレスの整備費用を削減することができ、最終的には、四塩化チタンの製造コスト低減に寄与するものである。  According to the present invention described above, the service life of the filter press can be greatly improved. As a result, the maintenance cost of the filter press can be reduced, and ultimately the production cost of titanium tetrachloride can be reduced. It contributes.

本発明の最良の実施形態について図面を参照しながら以下に説明する。
本願発明に係るフィルタープレス用ろ布は、産業廃棄物処理用のフィルタープレス用のろ布であって、上述のろ布が、ろ過布、給液部材、およびろ過布を係合する当布から構成されていることを特徴とするものである。The best embodiment of the present invention will be described below with reference to the drawings.
A filter cloth for a filter press according to the present invention is a filter cloth for a filter press for industrial waste treatment, and the filter cloth described above is engaged with a filter cloth, a liquid supply member, and a filter cloth that engages the filter cloth. It is characterized by being comprised.

図１は、本願発明に係るろ布Ｍの好ましい態様を表している。 上述したように、本願発明に係るろ布Ｍは、ろ過布１、当布２、給液部材３から構成されており、給液部材３は、ろ過布１の中心部に設けた開口部に装着した給液部材３とろ過布１を当布２により、縫合する形で両者を係合することが好ましい。  FIG. 1 shows a preferred embodiment of the filter cloth M according to the present invention. As described above, the filter cloth M according to the present invention includes the filter cloth 1, the cloth 2, and the liquid supply member 3, and the liquid supply member 3 is formed in the opening provided in the center of the filter cloth 1. It is preferable to engage the supplied liquid supply member 3 and the filter cloth 1 with the cloth 2 so as to be sewn together.

前記のろ過布１の材質は、布のみならず、合成樹脂製の糸で織った布を用いることができる。本願発明においては、ろ過布１の材質は、合成樹脂製の糸で織った布を用いることが好ましい。前記のような合成樹脂製の布を使用することにより、汚泥を含むスラリーをろ過する際に印加される圧搾力に十分耐えることができ、その結果、ろ過布１の寿命を効果的に高めることができるという効果を奏すものである。  The filter cloth 1 can be made of not only cloth but also cloth woven with synthetic resin threads. In the present invention, the material of the filter cloth 1 is preferably a cloth woven with synthetic resin threads. By using the synthetic resin cloth as described above, it is possible to sufficiently withstand the squeezing force applied when the slurry containing sludge is filtered, and as a result, the life of the filter cloth 1 is effectively increased. It has the effect of being able to.

本願発明では、ろ過布１の中心部には、給液部材３を装着することが好ましく、特に、上記給液部材３は、図２に示すような円筒状の部材であって、その両端部に、円板状の鍔３Ａを形成させておくことが好ましい。  In the present invention, the liquid supply member 3 is preferably attached to the central portion of the filter cloth 1, and in particular, the liquid supply member 3 is a cylindrical member as shown in FIG. In addition, it is preferable to form a disk-shaped ridge 3A.

また、上述の鍔３Ａは、給液部材３の胴部３Ｂに対して、鈍角になるように構成することが好ましい。具体的には、図３に示した鍔３Ａと胴部３Ｂのなす角を９０°以上に構成することが好ましい。
図３のように鍔３Ａを胴部３Ｂに対して鈍角になるように構成することにより、鍔３Ａの両者から圧搾力を受けた際にも、鍔３Ａは、ろ過布１に密着するような力が作用し、その結果、給液部材３とろ過布１との間に形成される隙間の形成を効果的に回避することができ、汚泥を含むスラリーの漏れを効果的に抑制することができるという効果を奏するものである。Moreover, it is preferable that the above-described flange 3 </ b> A is configured to have an obtuse angle with respect to the body portion 3 </ b> B of the liquid supply member 3. Specifically, it is preferable that the angle formed by the flange 3A and the body portion 3B shown in FIG.
As shown in FIG. 3, when the heel 3A is configured to have an obtuse angle with respect to the body portion 3B, the heel 3A is in close contact with the filter cloth 1 even when the squeezing force is received from both sides of the heel 3A. As a result, the formation of a gap formed between the liquid supply member 3 and the filter cloth 1 can be effectively avoided, and the leakage of slurry containing sludge can be effectively suppressed. It has the effect of being able to.

本願発明に係る上記給液部材３は、合成樹脂で構成することが好ましく、具体的には、ＰＰ（ポリプロピレン）で構成することが好ましい。ＰＰは、耐酸性があり、しかも高い強度を有しているためチタン鉱石の塩素化工程で生成するような酸性の汚泥に対しても、腐食性を示し、長期に亘り使用することができるという効果を奏するものである。  The liquid supply member 3 according to the present invention is preferably made of a synthetic resin, and specifically, PP (polypropylene). PP is acid-resistant and has high strength, so it exhibits corrosive properties and can be used over a long period of time even against acidic sludge that is produced in the chlorination process of titanium ore. There is an effect.

本願発明では、また、前記給液部材３とろ過布１とは、縫合する形で両者を係合することが好ましい。両者の縫合の際には、合成樹脂製の糸を使用することが好ましい。前記した合成樹脂製の糸を用いることにより、酸性の廃液や汚水と接触した場合にも、腐食や溶解の惧れがなく、長い期間に亘って、給液部材３とろ過布１との縫合状態を安定的に維持することができるという効果を奏するものである。  In the present invention, the liquid supply member 3 and the filter cloth 1 are preferably engaged with each other in a sewn form. It is preferable to use a thread made of a synthetic resin when the two are stitched. By using the above-mentioned synthetic resin thread, there is no fear of corrosion or dissolution even in contact with acidic waste liquid or sewage, and the liquid supply member 3 and the filter cloth 1 are sewn over a long period of time. The effect is that the state can be stably maintained.

本願発明においては、また、給液部材３とろ過布１との縫合部位を覆うように、当布２とろ過布１を縫合しておくことが好ましい。前記のような当布２により縫合部位を補強することにより、給液部材３とろ過布１との縫合状態を更に、長期間、安定に維持することができるという効果を奏するものである。  In the present invention, it is preferable that the cloth 2 and the filter cloth 1 are sewn so as to cover the stitched portion between the liquid supply member 3 and the filter cloth 1. By reinforcing the stitched portion with the cloth 2 as described above, the stitched state of the liquid supply member 3 and the filter cloth 1 can be further stably maintained for a long period of time.

上述の当布３は、合成樹脂製の糸ではなく木綿のような布で構成することが好ましい。そのような当布３を用いることにより、ろ布Ｍの両側に印加された応力によるろ過布１の変形を効果的に対応することができるという効果を奏するものである。  The above-described cloth 3 is preferably made of a cloth such as cotton instead of a synthetic resin yarn. By using such a cloth 3, it is possible to effectively cope with the deformation of the filter cloth 1 due to the stress applied to both sides of the filter cloth M.

本願発明では、上述の当布２は横長に構成することが好ましい。 前記のように横長の当布２を用いることにより、従来使用してきた正方形状の当布に比べて、その寿命が格段に改善されるという効果を奏するものである。  In the present invention, it is preferable that the above-described cloth 2 is configured to be horizontally long. By using the horizontally long cloth 2 as described above, there is an effect that the life is remarkably improved as compared with the square cloth which has been conventionally used.

当布２の形状は横長であれば、特に形状に制限はなく、例えば、長方形であっても楕円形であっても良いが、本願発明においては、楕円形で構成することがより好ましいとされる。  The shape of the cloth 2 is not particularly limited as long as it is horizontally long. For example, the shape may be a rectangle or an ellipse. The

また、本願発明に係る当布２は、ろ過布１の中心部に設けた開口部１Ａの面積に対して５倍以上の大きさの布を使用することが好ましく、更には、７倍以上、更には、１０倍以上の大きさの布を使用することがより好ましいとされる。  The cloth 2 according to the present invention preferably uses a cloth having a size of 5 times or more the area of the opening 1A provided at the center of the filter cloth 1, and more preferably 7 times or more. Furthermore, it is more preferable to use a cloth having a size 10 times or more.

前記した大きさの当布２を使用することにより、ろ過布１に対して両側より圧縮力が印加された場合にも、当布２とろ過布１との縫合部位に、裂け目や破れの発生はなく、長期に亘りろ布の寿命を維持することができるという効果を奏するものである。  Even when a compressive force is applied to the filter cloth 1 from both sides by using the cloth 2 having the above-described size, tears and tears are generated at the stitched portion between the cloth 2 and the filter cloth 1. However, there is an effect that the life of the filter cloth can be maintained over a long period of time.

本願発明に係る当布２とろ過布１との縫合に使用する糸の表面にはウエーブを形成させておくことが好ましい。前記のようなウエーブ処理を事前に行なっておくことにより、当布２と当布２との縫合部のほつれた緩みを効果的に回避することができるという効果を奏するものである。  It is preferable that a wave is formed on the surface of the yarn used for stitching the cloth 2 and the filter cloth 1 according to the present invention. By performing the wave treatment as described above in advance, it is possible to effectively avoid loose loosening of the stitched portion between the cloth 2 and the cloth 2.

ここでいうウエーブ処理とは、上記縫糸の表面に波状の凹凸を設けることを特徴とするものである。前記ウエーブ処理を行うことにより、縫合部の緩みやほつれを効果的に回避することができるという効果を奏するものである。  The wave treatment here is characterized by providing wavy irregularities on the surface of the sewing thread. By performing the wave treatment, it is possible to effectively avoid loosening and fraying of the stitched portion.

次に、本願発明に係るろ布Ｍを装着したフィルタープレスを用いた廃棄物スラリーの処理方法について、以下に述べる。  Next, a waste slurry treatment method using a filter press equipped with the filter cloth M according to the present invention will be described below.

図３は、本願発明に係るろ過布１を圧搾板５の間に組み込んだ状況を表している。圧搾板５に介装されたろ過布１は、圧搾板５の間に挟みこまれ、ろ過布１の中心部に設けた開口部より供給されたスラリー中の水分がろ過布１を通して分離除去することができる。  FIG. 3 shows a situation in which the filter cloth 1 according to the present invention is incorporated between the pressing plates 5. The filter cloth 1 interposed in the pressing plate 5 is sandwiched between the pressing plates 5, and moisture in the slurry supplied from the opening provided in the center of the filtering cloth 1 is separated and removed through the filtering cloth 1. be able to.

圧搾が終了したろ過布１と別のろ過布１との間には、スラリー中に懸濁していた固形分で構成されたプレスケーキが形成される。一方、スラリーより脱水された水分は、ろ過布１と圧搾板５との間より外部に滲みだして系外に排出される。  Between the filter cloth 1 that has been compressed and another filter cloth 1, a press cake composed of a solid content suspended in the slurry is formed. On the other hand, the water dehydrated from the slurry oozes out from between the filter cloth 1 and the pressing plate 5 and is discharged out of the system.

本願発明に係るろ過布１は、前記したように当布２の形状に工夫が盛り込まれているのみならず、当布２とろ過布１との縫合に使用される糸にも工夫がなされており、その結果、前記したように高い圧力の印加されるフィルタープレス装置において、スラリー中の水分を効率よく脱水させることができるという効果を奏するものである。  As described above, the filter cloth 1 according to the present invention is not only devised in the shape of the cloth 2 but also devised in the thread used for stitching the cloth 2 and the filter cloth 1. As a result, in the filter press apparatus to which a high pressure is applied as described above, there is an effect that water in the slurry can be efficiently dehydrated.

本願発明においては、図４に示すようにろ過布１を圧搾板５に装着した際には、ろ過布１の両端部は、外側に折り曲げて使用することが好ましい。前記した折り曲げ構造をろ過布１の両端に設けることにより、ろ過布１同士が圧搾板５により押圧された場合にも、折り曲げ部を形成させておくことにより、ろ過布１の周辺部の破れを効果的に回避することができるという効果を奏するものである。  In this invention, when attaching the filter cloth 1 to the pressing board 5 as shown in FIG. 4, it is preferable to use the both ends of the filter cloth 1 bent outside. By providing the folded structure described above at both ends of the filter cloth 1, even when the filter cloths 1 are pressed against each other by the pressing plate 5, the bent part is formed to break the peripheral part of the filter cloth 1. There is an effect that it can be effectively avoided.

以上、本願発明に係るろ布Ｍをフィルタープレスに適用することにより、長期に亘り、フィルタープレス作業を安定的に実施することができるという効果を奏するものである。  As described above, by applying the filter cloth M according to the present invention to the filter press, the filter press work can be stably performed over a long period of time.

図１に示した樹脂製のろ布Ｍを使用し、長短比が５の楕円形の当布２を使用して、四塩化チタンの製造工程で発生した固形物を含むスラリーの脱水乾燥処理を計５０バッチ行なったが、特にろ布Ｍの破れや裂け目の発生は確認されなかった。そこで、更に、スラリーの脱水乾燥処理を５０バッチ実施したが、なおも、破れ裂け目の発生は確認されなかった。
その結果、本願発明に係るろ布は、表１に示すように１６０バッチまで使用することができた。

Figure 0005344350
Using the filter cloth M made of resin shown in FIG. 1 and the elliptical cloth 2 having a length-to-short ratio of 5, the slurry containing solids generated in the manufacturing process of titanium tetrachloride is dehydrated and dried. It was carried out a total of 50 batch, but the occurrence of tear and tear of the filter cloth M in Japanese was not confirmed. Therefore, 50 batches of dehydration and drying treatment of the slurry were further carried out, but the generation of tears was not confirmed.
As a result, the filter cloth according to the present invention could be used up to 160 batches as shown in Table 1.
Figure 0005344350

図１に示したような樹脂製のろ布Ｍを使用し、ろ布Ｍの中心部に設けた開口部に対して長短比５の当布２の面積比を１、５、１０と変更した際のろ布Ｍの寿命を測定した。
その結果、前記面積比を増加させるに伴い、当布２寿命も改善されることが判明した。
また、当布２の長短比が５以上において、ろ布寿命の顕著な改善効果が確認された。

Figure 0005344350
［比較例１］The resin filter cloth M as shown in FIG. 1 was used, and the area ratio of the cloth 2 having a long / short ratio of 5 was changed to 1, 5, and 10 with respect to the opening provided at the center of the filter cloth M. The lifetime of the filter cloth M was measured.
As a result, it was found that the lifetime of the cloth 2 was improved as the area ratio was increased.
In addition, when the length ratio of the cloth 2 was 5 or more, a remarkable improvement effect of the filter cloth life was confirmed.
Figure 0005344350
 [Comparative Example 1]

実施例１において、長短比が１の当布２を用いた以外は、同じ条件下でろ布Ｍの寿命を測定した。 その結果、ろ布Ｍの寿命は、表１に記載のように実施例１に比べて、１００／１６０に留まった。  In Example 1, the life of the filter cloth M was measured under the same conditions except that the cloth 2 having a long / short ratio of 1 was used. As a result, the lifetime of the filter cloth M remained at 100/160 as compared with Example 1 as shown in Table 1.

本願発明は、金属チタンの製造工程で発生した汚泥処理に好適に利用することができる。  This invention can be utilized suitably for the sludge process generated in the manufacturing process of titanium metal.

・・・ 本願発明に係るろ布の全体図... Overall view of filter cloth according to the present invention ・・・ 本願発明に係る給液部材の全体図... Overall view of liquid supply member according to the present invention ・・・ 本願発明に係る給液部材の断面図... Cross-sectional view of liquid supply member according to the present invention ・・・ 本願発明に係るろ布と圧搾板との関係を表す図... Diagram showing the relationship between the filter cloth and the compression plate according to the present invention ・・・ 公知文献に開示されているろ布の全体図... Overall view of filter cloth disclosed in public literature

１…ろ過布
１Ａ…貫通孔
１Ｂ…縫合部位
２…等切れ
３…給液部材
３Ａ…鍔
３Ｂ…胴部
３Ｃ…貫通孔
４…圧搾板
Ｍ…ろ布
θ…給液部材を構成する鍔の開度（°）DESCRIPTION OF SYMBOLS 1 ... Filter cloth 1A ... Through-hole 1B ... Suture part 2 ... Equal piece 3 ... Liquid supply member 3A ... Bottle 3B ... Trunk 3C ... Through-hole 4 ... Pressure plate M ... Filter cloth (theta) ... Opening degree (°)

Claims (7)

廃棄物処理用のフィルタープレス用ろ布であって、前記ろ布が、ろ過布と給液部材およびろ過布を係合する当布から構成されており、前記当布が横長の楕円形に構成され、かつ、前記給液部材とろ過布との縫合部位を覆うように縫合されていることを特徴とするフィルタープレス用ろ布。A filter cloth for a filter press for waste treatment, wherein the filter cloth is constituted by a cloth that engages the filter cloth, a liquid supply member, and the filter cloth, and the cloth is configured in a horizontally long oval shape . And a filter press filter cloth, wherein the filter cloth is sewn so as to cover a stitched portion between the liquid supply member and the filter cloth. 請求項１記載の給液部材が、鍔付の円筒状部品であって、前記鍔と円筒状部品との接合角が、鈍角に構成されていることを特徴とするフィルタープレス用ろ布。  2. The filter cloth for a filter press according to claim 1, wherein the liquid supply member according to claim 1 is a cylindrical part with a flange, and a joining angle between the flange and the cylindrical part is an obtuse angle. 請求項１記載のろ布の外周部が、外側に折り返されていることを特徴とするフィルタープレス用ろ布。  A filter press filter cloth, wherein an outer peripheral portion of the filter cloth according to claim 1 is folded outward. 請求項１記載の当布の面積が、ろ布の中心部に形成された孔の面積に対して５倍 以上であることを特徴とする請求項１記載のフィルタープレス用ろ布。The filter cloth for a filter press according to claim 1, wherein the area of the cloth according to claim 1 is 5 times or more than the area of the hole formed at the center of the filter cloth. 請求項１記載の当布が布で構成され、ろ布が樹脂で構成されていることを特徴とするフィルタープレス用ろ布。  A filter cloth for a filter press, wherein the cloth according to claim 1 is made of a cloth, and the filter cloth is made of a resin. 請求項１〜５記載のフィルタープレス用ろ布をフィルタープレスに用いたことを特徴とする廃棄物処理方法。Waste treatment method characterized by the claims 1 to 5 filter-press filter cloth according used in a filter press. 請求項１に記載の給液部材の当布を縫合する際に用いる糸がウエーブ状に加工されていることを特徴とする廃棄物処理方法。  2. A waste disposal method according to claim 1, wherein the thread used for sewing the cloth of the liquid supply member according to claim 1 is processed into a wave shape.
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