JPH02172511A - Tubular ceramic filter, method and device for sealing its end - Google Patents
Tubular ceramic filter, method and device for sealing its endInfo
- Publication number
- JPH02172511A JPH02172511A JP32864388A JP32864388A JPH02172511A JP H02172511 A JPH02172511 A JP H02172511A JP 32864388 A JP32864388 A JP 32864388A JP 32864388 A JP32864388 A JP 32864388A JP H02172511 A JPH02172511 A JP H02172511A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- sealing material
- layer
- sealing
- plug member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims description 39
- 238000007789 sealing Methods 0.000 title claims description 38
- 238000000034 method Methods 0.000 title description 29
- 239000003566 sealing material Substances 0.000 claims abstract description 84
- 230000002093 peripheral effect Effects 0.000 claims description 31
- 239000000565 sealant Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 7
- 239000010419 fine particle Substances 0.000 description 7
- 230000035699 permeability Effects 0.000 description 7
- 239000008393 encapsulating agent Substances 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 238000001935 peptisation Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、液体、気体等の流体をろ過するろ過材層を有
する円筒状の管状セラミックスフィルタに関するもので
、特にセラミックスフィルタの端面周囲の封止方法およ
び封止装置等に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a cylindrical tubular ceramic filter having a filter layer for filtering fluids such as liquids and gases. The present invention relates to a sealing method, a sealing device, etc.
（従来の技術）
セラミック多孔質からなる管状のフィルタ（管体）を通
して溶液をろ過するセラミックスフィルタが知られてい
る。このセラミックスフィルタは、管状フィルタの内周
壁から外周壁あるいは外周壁から内周壁に溶液を透過す
るときろ過材層で溶液のろ過を行なう、このため、フィ
ルタをろ過装置に組込む場合、フィルタのろ過機能が保
持されるようにフィルタ端面が封止されていなければな
らない。(Prior Art) A ceramic filter is known that filters a solution through a tubular filter (tubular body) made of porous ceramic material. This ceramic filter filters the solution through the filtration material layer when the solution passes from the inner peripheral wall to the outer peripheral wall or from the outer peripheral wall to the inner peripheral wall of the tubular filter. Therefore, when the filter is incorporated into a filtration device, the filter's filtration function The end face of the filter must be sealed so that the
セラミックスフィルタの端面を封止する方法としては、
管状フィルタの端部にセラミック層あるいは金属層から
なる封止材をスパッタ等により付着することにより、端
部にセラミック層または金属層の付着を行なう方法が知
られている（特開昭５２−７８２０９号、特開昭５３−
２５２４１号など）。The method for sealing the end face of a ceramic filter is as follows:
There is a known method of attaching a ceramic layer or a metal layer to the end of a tubular filter by attaching a sealing material made of a ceramic layer or a metal layer to the end of the tubular filter by sputtering or the like (Japanese Patent Laid-Open No. 78209/1989). No., Japanese Patent Application Publication No. 1983-
25241 etc.).
（発明が解決しようとする課題）
しかし、従来の管状セラミックスフィルタの端部封止方
法によると、噴霧法、蒸着法等により円筒状多孔質セラ
ミックの管体端部に均一な厚さの封止材層を形成するの
は困難である。(Problem to be Solved by the Invention) However, according to the conventional method of sealing the end of a tubular ceramic filter, it is impossible to seal the end of a cylindrical porous ceramic filter with a uniform thickness by spraying, vapor deposition, etc. It is difficult to form a material layer.
また、封止材層を形成する場合、管体端部の端部および
その端面に連なる管体端部外周面および管体端部内周面
の封止すべき領域と非封止領域とを区別するために、そ
の非封止領域に栓をしたり。In addition, when forming the sealing material layer, the area to be sealed and the non-sealed area of the end of the tube end, the outer circumferential surface of the tube end and the inner circumferential surface of the tube end connected to the end surface are distinguished. To do this, plug the unsealed area.
シールを設けたりするなど、噴霧時あるいは蒸着時にと
るべき封止構造あるいは封止制御の設定が困難である。It is difficult to set the sealing structure or sealing control required during spraying or vapor deposition, such as providing a seal.
さらに、封止材層を均一に形成するための装置として管
体の軸線を回転中心線として管体な回転するための回転
機構が必要となり、装置が大型化し複雑化するという問
題がある。Furthermore, as an apparatus for uniformly forming the sealing material layer, a rotation mechanism for rotating the tubular body about the axis of the tubular body as a rotation center line is required, and there is a problem that the apparatus becomes large and complicated.
本発明は、このような問題点を解決するためになされた
もので、管状セラミックスフィルタの所定の封止域に均
一な厚さをもつ封止材層を簡単な装置によって形成する
ことを目的とする。The present invention was made to solve these problems, and its purpose is to form a sealing material layer with a uniform thickness in a predetermined sealing area of a tubular ceramic filter using a simple device. do.
（課題を解決するための手段）
そのために、本発明の第１発明における管状セラミック
スフィルタは、円筒状の多孔質セラミックスからなる管
体の内周面または外周面にろ過材層を形成したセラミッ
クスフィルタにおいて、前記管体の端面と端部外周面ま
たは端部内周面とに封止材層を形成したことを特徴とす
る。(Means for Solving the Problems) For this purpose, the tubular ceramic filter according to the first aspect of the present invention is a ceramic filter in which a filtering medium layer is formed on the inner peripheral surface or outer peripheral surface of a tubular body made of cylindrical porous ceramics. In this method, a sealing material layer is formed on the end surface and the outer circumferential surface or the inner circumferential surface of the end of the tube.
本発明の第２発明における管状セラミックスフィルタの
端部封止方法は、円筒状の多孔質セラミックスからなる
管体の端部内周面または端部外周面のいずれか一方を外
界から密封する栓部材を管体の端部に取付け、この状態
で外界に露出された前記端部外周面または端部内周面を
ｊ−ｆ止材溶液中に浸漬し、次いで前記栓部材を管体か
ら取外し、前記管体の端面に封止材を付着したことを特
徴とする。The method for sealing the end of a tubular ceramic filter according to the second aspect of the present invention includes a plug member that seals either the inner peripheral surface or the outer peripheral surface of the end of a tubular body made of cylindrical porous ceramics from the outside world. The plug member is attached to the end of the pipe body, and the outer peripheral surface or the inner peripheral surface of the end part, which is exposed to the outside in this state, is immersed in a J-F stopper solution, and then the plug member is removed from the pipe body, and the plug member is removed from the pipe body. It is characterized in that a sealing material is attached to the end face of the body.
本発明の第３発明における管状セラミックスフィルタの
端部封止装置は、封止材溶液を貯蔵する容器と、この容
器内に設けられ一端が前記容器に固定されるスプリング
手段と、このスプリング手段の他端に取付けられ管状セ
ラミックスフィルタの端部を嵌合自在に取付ける栓部材
と、前記管状セラミックスフィルタの端面に封止材を付
着するスタンプとを備え、前記スプリング手段のスプリ
ング伸長時に封止材溶液の液面上空で前記フィルタの端
部を前記栓部材に嵌合し、このスプリング伸長状態から
前記フィルタを栓部材に押圧してスプリング収縮時に前
記フィルタの端部を封止材溶液中に浸漬し、次いで前記
押圧を解除してフィルタの端部から栓部材を取外し、前
記スタンプにフィルタの端部を押圧して該フィルタの端
面に封止材を付着することを特徴とする。An end sealing device for a tubular ceramic filter according to a third aspect of the present invention includes a container for storing a sealing material solution, a spring means provided in the container and having one end fixed to the container, and a spring means provided in the container and having one end fixed to the container. A plug member is attached to the other end to which the end of the tubular ceramic filter can be fitted, and a stamp is provided to attach a sealing material to the end face of the tubular ceramic filter, and the sealing material solution is provided when the spring of the spring means is expanded. The end of the filter is fitted into the plug member above the liquid level, the filter is pressed against the plug member from this spring extended state, and the end of the filter is immersed in the sealant solution when the spring is contracted. Then, the press is released, the plug member is removed from the end of the filter, and the end of the filter is pressed against the stamp to attach a sealing material to the end surface of the filter.
（作用）
本発明の管状セラミックスフィルタの端部封止方法によ
れば、栓部材を取付けた管状セラミックスフィルタの端
部な封止材溶液中に浸漬すると、管体の端部外周面また
は端部内周面のいずれか一方に封止材層が形成される。(Function) According to the method for sealing the end of a tubular ceramic filter of the present invention, when the end of the tubular ceramic filter to which the plug member is attached is immersed in the sealing material solution, the inside of the end outer peripheral surface or end of the tubular body is A sealing material layer is formed on either one of the peripheral surfaces.
次いで管体の端面に封＋ＩＪｔ層が形成される。従って
、管体の端部外周面または端部内周面に封止材層を形成
する第１のステップと管体の端部に封止材層を形成する
ステップと段階的に第２のステップとして封止材層を形
成するようにしたので、管体の端部周囲に形成する封止
材層を特定の領域に適正な範囲で形成することができる
。A sealing +IJt layer is then formed on the end surface of the tube. Therefore, the first step is to form a sealing material layer on the outer peripheral surface or the inner peripheral surface of the end of the tube, and the second step is to form a sealing material layer on the end of the tube. Since the sealing material layer is formed, the sealing material layer formed around the end of the tube can be formed in a specific region within an appropriate range.
本発明の管状セラミックスフィルタの端部封止装置によ
れば、管体の端部に栓部材を嵌合し、容器内の封止材溶
液中に前記管体の端部をスプリング手段の付勢力に抗し
て押し入れると、管体の端部の端部外周面または端部内
周面に封止材溶液が浸漬されてその部分に封止材層が形
成される。そして、封止材溶液から管体を抜く。その後
、管体の端部をスタンプに押圧することにより、管体の
端部に封止材層が形成される。このため、管体を封止材
溶液中に押し入れ、その後管体を封止材溶液から抜取り
、管体の端部をスタンプに押圧するといつ、きわめて簡
単な操作により管体の端部周囲の所望の領域に封止材層
を的確かつ容易に形成することができる。According to the end sealing device for a tubular ceramic filter of the present invention, a plug member is fitted to the end of the tubular body, and the end of the tubular body is immersed in a sealant solution in a container by the urging force of the spring means. When the tubular body is pushed in against the pressure, the outer circumferential surface or inner circumferential surface of the end of the tube body is immersed in the sealing material solution, and a sealing material layer is formed in that portion. Then, the tube body is removed from the sealant solution. Thereafter, a sealing material layer is formed on the end of the tube by pressing the end of the tube against the stamp. For this reason, when the tube is pushed into the encapsulant solution, the tube is then withdrawn from the encapsulant solution, and the end of the tube is pressed against the stamp, the desired area around the end of the tube can be achieved with a very simple operation. The encapsulant layer can be accurately and easily formed in the region.
（実施例） 本発明の実施例を図面にもとづいて説明する。(Example) Embodiments of the present invention will be described based on the drawings.
第１図は、本発明の管状セラミックスフィルタを適用し
たろ過装置の第１の実施例を示している。FIG. 1 shows a first embodiment of a filtration device to which the tubular ceramic filter of the present invention is applied.
第１図は、円筒状の管状セラミックスフィルタの端面の
および端部外周面に封着材層を形成した例である。FIG. 1 shows an example in which a sealing material layer is formed on the end surface and the outer peripheral surface of the end of a cylindrical tubular ceramic filter.
第１図において、円筒状のセラミックスフィルタｌは、
孔質性の基体（粗粒層）２とその内周壁面に形成されろ
過機能を有する細粒層３とから構成される。このフィル
タｌの端部１ａにおける基体端部（粗粒層端面）２ａお
よび細粒層端面３ａならびに基体端部外周面２ｂに封止
材層５が形成されている。In FIG. 1, a cylindrical ceramic filter l is
It is composed of a porous substrate (coarse grain layer) 2 and a fine grain layer 3 formed on the inner peripheral wall surface thereof and having a filtering function. A sealing material layer 5 is formed on the base body end (coarse grain layer end face) 2a, fine grain layer end face 3a, and base body end outer circumferential surface 2b at the end portion 1a of the filter l.
そして、フィルタ端部１ａの外周に形成される封止材層
５の周りにＯリング６が介装されてフィルタｌがろ過装
置本体７に固定されている。ろ過液は通、路８を通って
矢印へ方自からフィルタ内通孔１ｂに流入し、その後細
粒層３および基体２を径外方向に透過してフィルタｌの
外部に流出される。この細粒層３をろ過液が透過すると
き、ろ過液はろ過される。An O-ring 6 is interposed around a sealing material layer 5 formed on the outer periphery of the filter end 1a, and the filter 1 is fixed to the filter main body 7. The filtrate flows through the passage 8 into the filter internal through hole 1b in the direction of the arrow, and then passes through the fine particle layer 3 and the base body 2 in the radial direction and flows out of the filter 1. When the filtrate passes through this fine particle layer 3, the filtrate is filtered.
封止材層５を形成する封止材に用いる材料は、有機材料
であれば、エポキシ樹脂、エステル樹脂などを用い、こ
の場合の分散解膠材として有機溶剤、アルコール等を用
いる。封止材に用いる材料が無機系材料であれば、ガラ
ス、アルミナ等のセラミックス物質を粉体化したものを
用い、この場合の分散解膠剤としては５カルボン酸系有
磯バインダ、アクリル酸系有機バインダ等を用いるのが
よい。また封止材に有機材料と無機材料の複合材料を用
いてもよい。分散解膠剤を用いるのは、封止材の泥漿ま
たは溶液中で封止材の成分が均一に分散または解膠する
ことによって、フィルタ端部への封止材の付着層を均一
とじ、シールムラの発生を防止するためである。この封
止材はスラリーまたは溶液化して用いる。If the material used for the sealing material forming the sealing material layer 5 is an organic material, epoxy resin, ester resin, etc. are used, and in this case, an organic solvent, alcohol, etc. are used as the dispersion peptizing agent. If the material used for the sealing material is an inorganic material, a powdered ceramic material such as glass or alumina is used, and in this case, the dispersion deflocculant is a 5-carboxylic acid-based binder or an acrylic acid-based binder. It is preferable to use an organic binder or the like. Further, a composite material of an organic material and an inorganic material may be used as the sealing material. The dispersion peptizer is used because the components of the sealing material are uniformly dispersed or peptized in the slurry or solution of the sealing material, thereby uniformly binding the layer of sealing material to the end of the filter and reducing seal unevenness. This is to prevent the occurrence of This sealing material is used in the form of a slurry or solution.
次にフィルタの端部に前述した封止材による封止材層を
形成する封止方法（シール方法）について説明する。第
２図は、フィルタ固定型のフィルタ端部をシールする封
止装置の実施例を示している。第２図に示す（Ａ）〜（
Ｄ）の順序にしたがってシール方法について説明する。Next, a sealing method (sealing method) for forming a sealing material layer using the sealing material described above at the end of the filter will be described. FIG. 2 shows an embodiment of a sealing device for sealing the end of a fixed filter. (A) to (shown in Figure 2)
The sealing method will be explained in accordance with the order of D).
まず第２図（Ａ）に示すようにフィルタ固定台ＩＩにフ
ィルタｌを鉛直方向に固定する。そしてこのフィルタ１
の鉛直下方に封止材溶液１２を貯蔵する容２３１３を伸
縮自在なジヤツキ！４の上に載置する。容器１３の底面
にはスプリング１５を設け、そのスプリング１５の上端
に円板状の栓部材１６を固定する。栓部材１６の頂面１
６ａは。First, as shown in FIG. 2(A), the filter l is vertically fixed on the filter fixing base II. And this filter 1
The container 2313 for storing the sealing material solution 12 is located vertically below the container 2313, which is extendable and retractable! Place it on top of 4. A spring 15 is provided on the bottom surface of the container 13, and a disc-shaped plug member 16 is fixed to the upper end of the spring 15. Top surface 1 of plug member 16
6a is.
封止材溶液１２の液面よりも高い位置にある。この状態
からジヤツキ１４を鉛直上方に図示矢印ａ方向に伸長し
、容器１３をリフトする。すると、栓部材１６の頂面１
６ａがフィルタ端部１ａに当接し、さらにジヤツキ１４
を伸長すると、栓部材１６の頂面１６ａが封止材溶液の
液面よりも下方にスプリング１５の収縮により押し下げ
られる。It is located at a higher position than the liquid level of the sealant solution 12. From this state, the jack 14 is extended vertically upward in the direction of arrow a in the figure to lift the container 13. Then, the top surface 1 of the plug member 16
6a comes into contact with the filter end 1a, and the jack 14
When the spring 15 is expanded, the top surface 16a of the plug member 16 is pushed down below the level of the sealant solution by the contraction of the spring 15.
すると第２図（Ｂ）の状態になる。Then, the state shown in FIG. 2(B) is reached.
第２図（Ｂ）に示す状態では、第３図に示すように、フ
ィルタ端部１ａの粗粒層端面２ａおよび細粒層端面３ａ
が栓部材１６の頂面１６ａに密着し、通孔１ｂが封止さ
れている。従って、フィルタｌの端部外周面１ｃのみが
封止材客演に浸漬される０次に、第２図（Ｂ）の状態か
らジヤツキ１４を収縮すると、容器１３が図示矢印す方
向に下降し、封１ト材溶液の液面上空にフィルタ端部１
ａ陸Ｓ出て、更にジヤツキ１４が収縮すると、栓部材１
６の頂面１６ａからフィルタ端部１ａが完全に離れた状
態になる。In the state shown in FIG. 2(B), as shown in FIG. 3, the coarse grain layer end surface 2a and the fine grain layer end surface 3a of the filter end portion 1a are
is in close contact with the top surface 16a of the plug member 16, and the through hole 1b is sealed. Therefore, when only the outer circumferential surface 1c of the end portion of the filter 1 is immersed in the sealing material, when the jack 14 is contracted from the state shown in FIG. The filter end 1 is placed above the liquid surface of the sealing material solution.
When a land S comes out and the jack 14 further contracts, the plug member 1
The filter end 1a is completely separated from the top surface 16a of the filter 6.
そして、第２図（Ｃ）に示すように、容器＋３の上部に
スタンプ台容器２０を固定し、このスタンプ台容器２０
に容器１３内の封止材溶液と同様の封止材溶液を入れ、
その中にフィルタ端部１ａの鉛直下方に位置してその端
面の面積よりも広い面積の頂面なもつスポンジ２１を載
置し、スポンジ２１に封止材溶液を浸しておく、この状
態からジヤツキ！４を伸長し、容器１３を図示矢印Ｃ方
向にリフトし、スポンジ２１の頂面にフィルタ端部１ａ
を押圧する。すると、第２図（Ｄ）に示す状態になる。Then, as shown in FIG. 2(C), the stamp pad container 20 is fixed to the upper part of the container +3, and the stamp pad container 20
Pour the same sealant solution as the sealant solution in the container 13 into
A sponge 21, which is located vertically below the filter end 1a and has a top surface larger than the area of the end surface, is placed therein, and the sponge 21 is immersed in the sealing material solution. ! 4, lift the container 13 in the direction of arrow C, and attach the filter end 1a to the top surface of the sponge 21.
Press. Then, the state shown in FIG. 2(D) is reached.
第２図（Ｄ）に示す状態では、フィルタ端部ｌａの端部
のみがスポンジ２１に晒される。次いで矢印ｄ方向にジ
ヤツキ１４を収縮し、容器１３を下降し、フィルタ端部
ｌａからスポンジ２１の頂面２１ａを切離す。In the state shown in FIG. 2(D), only the end portion of the filter end portion la is exposed to the sponge 21. In the state shown in FIG. Next, the jack 14 is retracted in the direction of arrow d, the container 13 is lowered, and the top surface 21a of the sponge 21 is cut off from the filter end la.
前述した第２図（Ａ）、（Ｂ）に示すフィルタ端部外周
面のディッピング操作（浸漬操作）および第２図（Ｃ）
、（Ｄ）に示す端面スタンプ操作によって、フィルタ！
の端部外周面および端面にそれぞれ均一な所定の膜厚を
もつ封止材層を形成することができる。この場合、端部
外周面の封止材層の膜厚とフィルタ端面の封止材層の膜
厚は。Dipping operation (soaking operation) of the outer circumferential surface of the filter end shown in FIGS. 2(A) and (B) and FIG. 2(C)
, by the edge stamp operation shown in (D), the filter!
A sealing material layer having a uniform predetermined thickness can be formed on the outer circumferential surface of the end portion and the end surface, respectively. In this case, the thickness of the sealing material layer on the outer peripheral surface of the end portion and the thickness of the sealing material layer on the end surface of the filter are as follows.
それぞれ封止材溶液への浸漬時間あるいは封止材温度等
を調節することによって適正な厚さに制御可能である。The appropriate thickness can be controlled by adjusting the immersion time in the sealing material solution, the temperature of the sealing material, etc., respectively.
しかもフィルタの内周壁面には封止材層が形成されない
状態にあり、フィルタｌの細粒層３の有効ろ過面積を最
大限広く確保することができる。Moreover, the sealing material layer is not formed on the inner circumferential wall surface of the filter, and the effective filtration area of the fine particle layer 3 of the filter I can be ensured as wide as possible.
前述した第１の実施例によれば、フィルタ端部ｌａに形
成される端部外周面１ｃおよび端面２ａ。According to the first embodiment described above, the end outer circumferential surface 1c and the end surface 2a formed at the filter end la.
３ａに形成される封止材層の膜厚を均一にしかも清らか
に形成することができる。このため、このようなフィル
タ１を第１図に示する過装置等に取付ける場合、ろ過装
置でフィルタ端部外周がＯリング６と接触組込みされる
ときシールを確実に行なうことができる。また、封止材
層を形成する封止方法によると、前述したディッピング
操作およびスタンプ操作によりフィルタ端部の所定の領
域に容易かつ迅速に封止材層の形成を行なえる。The thickness of the sealing material layer formed on 3a can be made uniform and clear. Therefore, when such a filter 1 is attached to a filtration device as shown in FIG. 1, sealing can be ensured when the outer periphery of the filter end comes into contact with the O-ring 6 in the filtration device. Further, according to the sealing method of forming the sealing material layer, the sealing material layer can be easily and quickly formed in a predetermined region of the end of the filter by the above-described dipping operation and stamping operation.
なお、第１の実施例で用いた封止装置はフィルタ固定型
のものであるが、容器を固定しフィルタを上下動させる
フィルタ可動型の装置を用いてもよいことはもちろんで
ある。Although the sealing device used in the first embodiment is of a fixed filter type, it is of course possible to use a movable filter type device in which the container is fixed and the filter is moved up and down.
第１の実施例では、フィルタ機能を有する細粒層がフィ
ルタの内周壁面層として形成されるタイプのフィルタを
用いたが１次にフィルタ機能を有する細粒層がフィルタ
の外周壁面層として形成されるタイプのフィルタを用い
た第２の実施例について説明する。In the first embodiment, a type of filter in which a fine grain layer having a filter function is formed as an inner peripheral wall layer of the filter is used. A second example using a filter of the type shown in FIG.
第２の実施例は、フィルタ機能を有する細粒層がフィル
タの外周壁面層として形成されるタイプであるから、こ
のタイプのフィルタを組込んだろ過装置は例えば第５図
に示す構成になる。フィルタＩの端部における粗粒層端
面３２ａ、端部内周壁面３２および細粒層３３の端面３
３ａに到着材層４５が形成される。Since the second embodiment is of a type in which a fine particle layer having a filter function is formed as an outer peripheral wall layer of the filter, a filtration device incorporating this type of filter has a structure as shown in FIG. 5, for example. Coarse grain layer end face 32a, end inner circumferential wall face 32, and end face 3 of fine grain layer 33 at the end of filter I
An arriving material layer 45 is formed on 3a.
シール方法は、基本的に第２図（Ａ）〜（Ｄ）に示す手
順と同様である。細粒層３３の有効ろ過面積を拡張する
ためにフィルタ１の端部外周面には到着材層を形成しな
い、フィルタｌの端部内周壁面および端面にシール層を
形成する。そのために第２図（Ｂ）の工程においては、
第４図に示すように、栓部材３６の形状は、環状のつば
部３６ａを有し、またフィルタ通孔に対応する内径の底
入面３６ｂを有するものとする。第４図において、第３
図と実質的に同一部分については同一符号を付しである
。これによって、ディッピング操作では、フィルタ端部
の粗粒層端部内周面３２ｂのみが封止材溶液に浸される
０次いで第２図（Ｃ）（Ｄ）の端部スタンプ操作を行な
うことにより、フィルタ端部の端面に封止材層を形成す
る。The sealing method is basically the same as the procedure shown in FIGS. 2(A) to 2(D). In order to expand the effective filtration area of the fine particle layer 33, no arrival material layer is formed on the outer peripheral surface of the end of the filter 1, but a sealing layer is formed on the inner peripheral wall surface and end surface of the end of the filter l. For this purpose, in the process shown in Figure 2 (B),
As shown in FIG. 4, the plug member 36 has an annular flange 36a and a bottom entry surface 36b with an inner diameter corresponding to the filter passage hole. In Figure 4, the third
Components that are substantially the same as those in the figures are designated by the same reference numerals. As a result, in the dipping operation, only the inner circumferential surface 32b of the coarse particle layer end at the end of the filter is immersed in the sealant solution.Then, by performing the end stamping operation shown in FIGS. 2(C) and 2(D), A sealing material layer is formed on the end face of the filter end.
この操作によれば、フィルタｌの端部外周面には封止材
層が形成されないので、フィルタ機能を有する細粒層３
３の面積を端部まで拡大し、フィルタ機能を大きく確保
できる。According to this operation, a sealing material layer is not formed on the outer circumferential surface of the end portion of the filter l, so the fine grain layer 3 having a filter function is
The area of 3 can be expanded to the end, and a large filter function can be ensured.
なお、フィルタのタイプとしてはフィルタ軸方向に多数
の通孔を有するモノリスフィルタに本発明を適用するこ
ともできることはもちろんである。As for the type of filter, it goes without saying that the present invention can also be applied to a monolith filter having a large number of through holes in the axial direction of the filter.
第５図は、第４図に示すように、フィルタ端部の端部内
周面および端面に封着材層を形成したフィルタをろ過装
置に組込んだ構成例を示している。FIG. 5 shows an example of a configuration in which a filter in which a sealing material layer is formed on the inner circumferential surface and end surface of the filter end is incorporated into a filtration device as shown in FIG. 4.
フィルタ端部内周面に形成される封止材層４５ａと端面
に形成される封止材層４５ｂとがある。There is a sealing material layer 45a formed on the inner peripheral surface of the filter end and a sealing material layer 45b formed on the end surface.
そして内周面側の封止材層４５ａの内周側にＯリング４
６を介してフィルタｌの通孔１ｂが外界と隔離されてい
る。ろ過液はろ過装置の案内孔４８を第５図矢印へ方向
に流れ、通孔１ｂに流入し、粗粒層３２および細粒層３
３を通ってフィルタｌの外周側に流出する。このときフ
ィルタ機能を有する細粒層３３でろ過液がろ過される。Then, an O-ring 4 is attached to the inner circumferential side of the sealing material layer 45a on the inner circumferential surface side.
The through hole 1b of the filter l is isolated from the outside world through the filter 6. The filtrate flows through the guide hole 48 of the filtration device in the direction of the arrow in FIG.
3 and flows out to the outer peripheral side of the filter l. At this time, the filtrate is filtered through the fine particle layer 33 having a filter function.
細粒層３３は、フィルタ軸方向の端部における細粒層端
面３３ａまで延びて形成され、この端面３３ａは封止材
層が形成されていないので、有効なフィルタ機能面積が
広く確保されている。The fine grain layer 33 is formed to extend to a fine grain layer end face 33a at the end in the filter axial direction, and since no sealing material layer is formed on this end face 33a, a wide effective filter function area is ensured. .
次に本発明の第１の実施例によるフィルタ端部封止装置
により封止材層を形成したセラミックスフィルタの各種
評価テストを行なった。Next, various evaluation tests were conducted on a ceramic filter in which a sealing material layer was formed using the filter end sealing device according to the first embodiment of the present invention.
セラミックスフィルタ試料は、軸方向に多数の通孔が形
成され、この通孔の内周面に細粒層を形成したアルミナ
フィルタを試料に用いた。試料のアルミナフィルタのサ
イズは直径３０ｍｍ、長さ２００ｍｍ、通孔の数１９個
、通孔の径４ｍｍ、細粒層の平均気孔径０．２μｍ、粗
粒層の平均気孔径１５μｍ、空気圧６ｋｇ／ｃｍで発泡
しないフィルタを用いた。The ceramic filter sample used was an alumina filter in which a large number of through holes were formed in the axial direction and a fine grain layer was formed on the inner peripheral surface of the through holes. The size of the sample alumina filter is 30 mm in diameter, 200 mm in length, 19 holes, 4 mm in diameter, average pore diameter of fine grain layer 0.2 μm, average pore diameter of coarse grain layer 15 μm, air pressure 6 kg/ A filter that does not foam at cm was used.
評価テストは、各種封止材料、封止材料の分散解膠処理
の有無および封止方法によって、封止材層の外観、封止
性および透水性がどのように変化するかについて行なっ
た。Evaluation tests were conducted to examine how the appearance, sealability, and water permeability of the sealing material layer change depending on various sealing materials, the presence or absence of dispersion peptization treatment of the sealing material, and the sealing method.
（１）封止材料は、ガラス、細粒層およびエポキシ樹脂
のそれぞれを用いた。封止材料にガラスを用いたものは
封止材層を形成後１３００℃以上の温度で焼成し、封止
材層の形成を完了した。封止材料に細粒層を用いたもの
は平均気孔径が０．２μｍの細粒層を用いた。封止材料
にエポキシ樹脂を用いたものは封止材層成形後２４時間
敢五し。(1) Glass, fine grain layer, and epoxy resin were used as the sealing materials. For those using glass as the sealing material, the sealing material layer was formed and then fired at a temperature of 1300° C. or higher to complete the formation of the sealing material layer. In the case where a fine grain layer was used as the sealing material, a fine grain layer with an average pore diameter of 0.2 μm was used. For those using epoxy resin as the sealing material, wait 24 hours after molding the sealant layer.
封止材層の形成を完了した。Formation of the sealing material layer was completed.
（２）分散解膠処理を行なったものについての分散解膠
剤は、ガラス、細粒層についてはポリアクリル酸系有機
バインダ（１ｗｔ％）とメチルセルロース（１ｗｔ％）
を用い、エポキシ樹脂についてはアルコール（１ｗｔ％
）を用いた。(2) For those subjected to dispersion peptization treatment, the dispersion peptizer is glass, and for the fine grain layer, polyacrylic acid-based organic binder (1wt%) and methylcellulose (1wt%)
For epoxy resin, alcohol (1wt%
) was used.
（３）封止方法は、
Ａ：ディッピング方式およびスタンプ方式Ｂ：ディッピ
ング方式
Ｃ；ノズル噴霧方式
を採用した。(3) The following sealing methods were used: A: dipping method and stamp method B: dipping method C: nozzle spraying method.
（４）封止材層を形成した領域は、■フィルタの端面、
■フィルタ両端から軸方向に５０ｍｍのフィルタ端部外
周面、■フィルタ両端から軸方向に１ｍｍのフィルタ端
部内周面とした。封止材層の厚さは、それぞれ１００μ
ｍとした。試験結果は第１表に示すとおりである。(4) The area where the sealing material layer is formed is: ■ the end face of the filter;
(2) The outer circumferential surface of the filter end was 50 mm in the axial direction from both ends of the filter, and (2) the inner circumferential surface of the filter end was 1 mm in the axial direction from both ends of the filter. The thickness of each sealing material layer is 100μ
It was set as m. The test results are shown in Table 1.
（以下、余白） 第１表において評価は次のとおり行なった。(Hereafter, margin) In Table 1, the evaluation was performed as follows.
の ：
封止材層のシールムラ等の美感を損なう傷があったかど
うかで判別し、「良」は○印、「不良」はＸ印とした。: Judgment was made based on whether there were any flaws that impaired the aesthetic appearance such as seal unevenness in the sealing material layer, and "good" was marked with an ○ mark, and "poor" was marked with an X mark.
肚よユ且１
水中下に保持したフィルタの粗粒層から空気圧５ ｋ
ｇ ／ Ｃｍ”で空気を透し、封止材層からの発泡の有
無を評価した０発泡の「無し」は○印、発泡の「有り」
はＸ印とした。Air pressure 5k from the coarse particle layer of the filter held under water
g / Cm" to allow air to pass through and evaluate the presence or absence of foaming from the sealing material layer. 0 foaming "No" is marked ○, foaming "Yes"
is marked with an X.
１水ユ薯１
フィルタの細粒層側から水圧１ｋｇ／ａｍ”の水を通水
させたときの透水量で評価した。試料として用いたフィ
ルタの封止材層を形成する封止前の透水量の９５％以上
を保持するものを○印、９５％未満のものをＸ印とした
。Water permeability was evaluated based on the water permeability when water was passed through the fine particle layer side of the filter at a pressure of 1 kg/am.Water permeability before sealing to form the sealant layer of the filter used as a sample Those that retained 95% or more of the amount were marked with an ○, and those that retained less than 95% were marked with an X.
第１表に示すように、実施例１．７および１３において
は、その評価が、封止材層の外観評価、封止性および透
水性のいづれの評価も良好であった。これに対し比較例
２〜６．８〜１２ｔＳよび１４〜１８においては、外観
評価、封止性または透水性の少なくともいづれかに欠点
があった。この試験結果より、封止材料については、ガ
ラス、細粒層、エポキシ樹脂のいづれであっても良好な
評価が得られたが、封止方法については、前述した実施
例の如くディッピング方式とスタンプ方式を組合わせた
封止方法が優れていることが解る。また封止材料の分散
解膠剤処理の有無については、分散解膠剤処理が必要で
あることが解った。As shown in Table 1, in Examples 1.7 and 13, the evaluation of the appearance of the sealing material layer, the sealing property, and the water permeability were all good. On the other hand, Comparative Examples 2 to 6.8 to 12tS and 14 to 18 had defects in at least one of appearance evaluation, sealing performance, and water permeability. From this test result, good evaluations were obtained for the sealing material, regardless of glass, fine grain layer, or epoxy resin, but the sealing method was the dipping method and the stamping method as in the previous example. It can be seen that the sealing method that combines these methods is superior. Regarding whether or not the sealing material should be treated with a dispersion peptizer, it was found that treatment with a dispersion peptizer is necessary.
（発明の効果）
以上説明したように、本発明の管状セラミックスフィル
タの端部封止方法によれば、ディッピング（浸漬）方式
とスタンプ方式を組合わせることにより、管体の端面、
端部外周面または端部内周面に均一な厚さの封止材層を
容易に形成することができる。また２この方法によると
、封止材層を形成する領域が端部内周面、端部外周面ま
たは端面のいづれかによって封止材層の厚さを適正に変
化させることもできるし、また封止材層の領域の面積を
容易に調節することもできる。(Effects of the Invention) As explained above, according to the method for sealing the end of a tubular ceramic filter of the present invention, by combining the dipping method and the stamping method, the end surface of the tubular body,
A sealing material layer having a uniform thickness can be easily formed on the outer peripheral surface or the inner peripheral surface of the end. In addition, according to this method, the thickness of the encapsulant layer can be appropriately changed depending on whether the region where the encapsulant layer is formed is the inner circumferential surface of the end, the outer circumferential surface of the end, or the end surface. The area of the material layer region can also be easily adjusted.
従って、封止材層の外観や封市性の良悪あるいは管体の
透水性等を考慮し、適正な領域で適正な１ワさをもつ封
止材層をフィルタの所定箇所に形成することにより、フ
ィルタの端部における封止特性のすぐれた管状セラミッ
クスフィルタを安い製造コストで量産することが可能で
ある。Therefore, it is necessary to form a sealing material layer with an appropriate thickness in an appropriate area at a predetermined location of the filter, taking into account the appearance of the sealing material layer, its sealability, the water permeability of the pipe body, etc. This makes it possible to mass-produce tubular ceramic filters with excellent sealing properties at the ends of the filter at low manufacturing costs.
さらには１本発明の端部封止装置によれば、ディッピン
グ方式とスタンプ方式の段階的な封止材層形成工程によ
って比較的簡単に良好な外観評価をもつ均一な封止材層
を管状セラミックスフィルタの端部に形成することがで
き、しかも封止域の調節は、装置の設定により的確に適
宜可変にすることができる。Furthermore, according to the end sealing device of the present invention, a uniform sealing material layer with good appearance evaluation can be formed on tubular ceramics relatively easily by a stepwise sealing material layer forming process using a dipping method and a stamping method. It can be formed at the end of the filter, and the adjustment of the sealing area can be varied precisely and appropriately by setting the device.
第１図は本発明の第１の実施例により製造したセラミッ
クフィルタを装着したろ過装置のシール部分を示す概略
断面図、第２図は本発明の第１の実施例における封止方
法の工程原理を説明するための概略説明図、第３図は本
発明の第１の実施例におけるディッピング工程における
要部の状態を示す概略説明図、第４図は本発明の他の実
施例における第３図に対応する概略説明図、第５図は本
発明の他の実施例における第１図に対応する概略断面図
である。
！ ・・・フィルタ
（管状セラミックスフィルタ）、
ａ・・・フィルタ端部、
・・・基体（粗粒層）、
ａ ”・粗粒層端面、
ｂ・・・粗粒層端部外周面、
・・・細粒層、
ａ・・・細粒層端面、
・・・封止材層、
・・・封止材溶液。
・・・容器、
・・・スプリング、
・・・栓部材、
・・・スタンプ台容器（スタンプ）、
・・・スポンジ（スタンプ）。FIG. 1 is a schematic sectional view showing the sealing part of a filtration device equipped with a ceramic filter manufactured according to the first embodiment of the present invention, and FIG. 2 is a process principle of the sealing method according to the first embodiment of the present invention. FIG. 3 is a schematic explanatory diagram showing the state of main parts in the dipping process in the first embodiment of the present invention, and FIG. 4 is a schematic explanatory diagram for explaining another embodiment of the present invention. FIG. 5 is a schematic sectional view corresponding to FIG. 1 in another embodiment of the present invention. ! ...filter (tubular ceramic filter), a...filter end, ...substrate (coarse grain layer), a'', coarse grain layer end surface, b...coarse grain layer end outer peripheral surface, ...・Fine grain layer, a... End face of fine grain layer, ... Sealing material layer, ... Sealing material solution. ... Container, ... Spring, ... Plug member, ... Stamp Base container (stamp), ... sponge (stamp).
Claims (3)
面または外周面にろ過材層を形成したセラミックスフィ
ルタにおいて、前記管体の端面と端部外周面または端部
内周面とに封止材層を形成したことを特徴とする管状セ
ラミックスフィルタ。(1) In a ceramic filter in which a filter material layer is formed on the inner or outer circumferential surface of a tube made of cylindrical porous ceramics, the end surface of the tube and the outer circumferential surface or inner circumferential surface of the end are sealed. A tubular ceramic filter characterized by forming a layer of material.
内周面または端部外周面のいずれか一方を外界から密封
する栓部材を管体の端部に取付け、この状態で外界に露
出された前記端部外周面または端部内周面を封止材溶液
中に浸漬し、次いで前記栓部材を管体から取外し、前記
管体の端面に封止材を付着したことを特徴とする管状セ
ラミックスフィルタの端部封止方法。(2) A plug member is attached to the end of the tube to seal either the inner peripheral surface or the outer peripheral surface of the end of the tube made of cylindrical porous ceramics from the outside world, and in this state, the plug member is not exposed to the outside world. A tubular ceramic, characterized in that the outer peripheral surface or the inner peripheral surface of the end is immersed in a sealant solution, the plug member is then removed from the tube, and a sealant is attached to the end surface of the tube. How to seal the end of the filter.
られ一端が前記容器に固定されるスプリング手段と、こ
のスプリング手段の他端に取付けられ管状セラミックス
フィルタの端部を嵌合自在に取付ける栓部材と、前記管
状セラミックスフィルタの端面に封止材を付着するスタ
ンプとを備え、前記スプリング手段のスプリング伸長時
に封止材溶液の液面上空で前記フィルタの端部を前記栓
部材に嵌合し、このスプリング伸長状態から前記フィル
タを栓部材に押圧してスプリング収縮時に前記フィルタ
の端部を封止材溶液中に浸漬し、次いで前記押圧を解除
してフィルタの端部から栓部材を取外し、前記スタンプ
にフィルタの端面を押圧して該フィルタの端面に封止材
を付着することを特徴とする管状セラミックスフィルタ
の端部封止装置。(3) A container for storing a sealant solution, a spring means provided in the container and having one end fixed to the container, and a spring means attached to the other end of the spring means to which the end of the tubular ceramic filter can be freely fitted. and a stamp for attaching a sealing material to the end surface of the tubular ceramic filter, the end of the filter being attached to the plug member above the liquid level of the sealant solution when the spring means is expanded. Once fitted, the filter is pressed against the plug member from this spring extended state, and when the spring contracts, the end of the filter is immersed in the sealant solution, and then the pressure is released and the plug member is removed from the end of the filter. 1. An end sealing device for a tubular ceramic filter, characterized in that the stamp is removed and the end face of the filter is pressed against the stamp to adhere a sealing material to the end face of the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32864388A JPH02172511A (en) | 1988-12-26 | 1988-12-26 | Tubular ceramic filter, method and device for sealing its end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32864388A JPH02172511A (en) | 1988-12-26 | 1988-12-26 | Tubular ceramic filter, method and device for sealing its end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02172511A true JPH02172511A (en) | 1990-07-04 |
Family
ID=18212559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32864388A Pending JPH02172511A (en) | 1988-12-26 | 1988-12-26 | Tubular ceramic filter, method and device for sealing its end |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02172511A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6210458B1 (en) | 1997-12-26 | 2001-04-03 | Toshiba Ceramics Co., Ltd. | Gas filter module having two-part filter and method of producing the same |
| JP2008173601A (en) * | 2007-01-22 | 2008-07-31 | Ngk Insulators Ltd | Ceramic filter and end face sealing method thereof |
| JP2009028670A (en) * | 2007-07-27 | 2009-02-12 | National Institute Of Advanced Industrial & Technology | Stamp type production method of film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6125659A (en) * | 1984-07-12 | 1986-02-04 | Mita Ind Co Ltd | Coating device |
| JPS6125661A (en) * | 1984-07-12 | 1986-02-04 | Mita Ind Co Ltd | Coating device |
| JPS62132518A (en) * | 1985-12-03 | 1987-06-15 | Ngk Insulators Ltd | Porous filter having sealed end part |
-
1988
- 1988-12-26 JP JP32864388A patent/JPH02172511A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6125659A (en) * | 1984-07-12 | 1986-02-04 | Mita Ind Co Ltd | Coating device |
| JPS6125661A (en) * | 1984-07-12 | 1986-02-04 | Mita Ind Co Ltd | Coating device |
| JPS62132518A (en) * | 1985-12-03 | 1987-06-15 | Ngk Insulators Ltd | Porous filter having sealed end part |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6210458B1 (en) | 1997-12-26 | 2001-04-03 | Toshiba Ceramics Co., Ltd. | Gas filter module having two-part filter and method of producing the same |
| JP2008173601A (en) * | 2007-01-22 | 2008-07-31 | Ngk Insulators Ltd | Ceramic filter and end face sealing method thereof |
| JP2009028670A (en) * | 2007-07-27 | 2009-02-12 | National Institute Of Advanced Industrial & Technology | Stamp type production method of film |
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