JPH02144108A - Filter, filter unit using the filter, and precision filtration method - Google Patents
Filter, filter unit using the filter, and precision filtration methodInfo
- Publication number
- JPH02144108A JPH02144108A JP63294584A JP29458488A JPH02144108A JP H02144108 A JPH02144108 A JP H02144108A JP 63294584 A JP63294584 A JP 63294584A JP 29458488 A JP29458488 A JP 29458488A JP H02144108 A JPH02144108 A JP H02144108A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- stainless steel
- fibers
- fiber
- precision filtration
- 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.)
- Granted
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 39
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 26
- 239000010935 stainless steel Substances 0.000 claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 235000013334 alcoholic beverage Nutrition 0.000 claims description 3
- 239000012784 inorganic fiber Substances 0.000 claims description 3
- 238000005524 ceramic coating Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 239000004744 fabric Substances 0.000 description 4
- 238000004506 ultrasonic cleaning Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Landscapes
- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明はフィルタ及びそれを用いたフィルタユニｙｌ
−ならびに精密濾過処理方法に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a filter and a filter unit using the same.
- and a precision filtration treatment method.
〈従来の技術〉
液体や気体の濾過処理に用いられるフィルタ（炉材）に
はそれが表面濾過であれ深部濾過であれ以下のような特
性が要求される。<Prior Art> Filters (furnace materials) used for filtration of liquids and gases, whether surface filtration or deep filtration, are required to have the following characteristics.
（ａ）目が細かく固体粒子を通過させないこと伽）気体
や液体の１ｌｌｉ過抵抗が大きくないこと（ｅ）目詰り
しにくいこと
（ｄ）洗浄再生が容易なこと
（ｅ）化学的に安定で、耐蝕性があること（ｆ）機械的
強度が大であり、取扱いが容易であること
（８）これらの相乗的な特性として寿命が永く、且つ濾
過能力に優れていること
このような諸条件をなるべ（満足すべく、従来のフィル
タとしては一般的に綿布や石綿等の繊維織物やセラミッ
クその他の多孔性材料、或いは砂、白土、活性炭等の充
填層が採用されている。また、特に目詰まりし易く、気
体や液体の濾過抵抗が大きくなり易い場合には、珪藻土
、アスベスト、鋸屑等の濾過助材を予めフィルタの表面
につけておくこともある。(a) The mesh is fine and does not allow solid particles to pass through. (e) The overresistance of gases and liquids is not large. (e) It does not clog easily. (d) It is easy to clean and regenerate. (e) It is chemically stable. (f) It has high mechanical strength and is easy to handle. (8) The synergistic characteristics of these properties include long life and excellent filtration ability. Conventional filters generally employ fiber fabrics such as cotton cloth or asbestos, ceramics or other porous materials, or filled layers of sand, clay, activated carbon, etc. If the filter is easily clogged and the filtration resistance of gas or liquid becomes large, a filter aid such as diatomaceous earth, asbestos, or sawdust may be applied to the surface of the filter in advance.
〈発明が解決しようとする課題〉
しかしながら、従来−船釣に用いられていた前述の如き
フィルタはいずれも前記特性（ａ）〜（ｇ）を必ずしも
全て満足するものでなかった。例えば、綿布等の繊維織
物は耐蝕性に劣り、また多孔性材料は一般的に気体や液
体の通過抵抗が大きいし、−度固体粒子が内部にまで入
り込んでしまうとその洗浄再生が困難であった。<Problems to be Solved by the Invention> However, the above-mentioned filters conventionally used for boat fishing do not necessarily satisfy all of the characteristics (a) to (g). For example, fiber fabrics such as cotton cloth have poor corrosion resistance, porous materials generally have high resistance to gas and liquid passage, and once solid particles get inside, it is difficult to clean and regenerate them. Ta.
この発明はこのような従来の課題に着目して為されたも
のであり、前述の特性（ａ）〜（縛を全て満足すること
ができるフィルタを提供すると共に、それを用いたフィ
ルタユニット、精密濾過処理方法も併せて提供せんとす
るものである。The present invention has been made by focusing on such conventional problems, and provides a filter that can satisfy all of the above-mentioned characteristics (a) to (restrictions), as well as a filter unit using the same, and a precision filter. A filtration treatment method is also provided.
〈課題を解決するための手段〉
上記の目的を達成するため、この発明に係るフィルタは
、ステンレス鋼製のワイヤを切削して得られる微小断面
積のステンレスファイバを集合して成るものである。<Means for Solving the Problems> In order to achieve the above object, a filter according to the present invention is made up of a collection of stainless steel fibers with a minute cross-sectional area obtained by cutting a stainless steel wire.
他のフィルタは、前記ステンレスファイバに、予めセラ
ミックコーティングして、それを集合してなるものであ
る。Other filters are made by pre-coating the stainless steel fibers with a ceramic coating and assembling them.
更に、別のフィルタは前記ステンレスファイバに、有機
又は無機系繊維を組合わせて成るものである。Furthermore, another filter is made by combining the stainless steel fibers with organic or inorganic fibers.
この発明に係るフィルタユニットは、前記フィルタを、
支持体で担持又は挟持、或いは支持体内に収納して成る
ものである。The filter unit according to the present invention includes the filter,
It is supported or sandwiched by a support, or housed within a support.
更にこの発明に係る精密濾過処理方法は、前記フィルタ
に、液体又は気体を透過せしめるものであり、このフィ
ルタを液体フィルタ又は気体フィルタとして使用するも
のである。Further, in the precision filtration treatment method according to the present invention, liquid or gas is allowed to pass through the filter, and this filter is used as a liquid filter or a gas filter.
〈作 用〉
この発明に係るフィルタはステンレス鋼製のワイヤを切
削して得られる微小断面積のステンレスファイバを集合
したものなので、まず第一に化学的に安定で耐蝕性があ
る。従って、濾過対象である気体や液体の種類を選ばず
、どのようなものでも濾過てきる。<Function> Since the filter according to the present invention is a collection of stainless steel fibers with a micro cross section obtained by cutting stainless steel wire, it is first of all chemically stable and corrosion resistant. Therefore, any type of gas or liquid to be filtered can be filtered.
また、洗浄再生として超音波洗浄や薬剤洗浄、或いは高
圧による逆洗洗浄を行ってもフィルタが破壊しない。ま
た、前記ステンレスファイバは微小断面積であるので、
目が細か（精密濾過処理に好適である。加えて、このス
テンレスファイバは切削刃の形状に応じた異径断面のリ
ボン形状を呈することとなるので、他の形状、例えば断
面形状が単なる円形のものと比較してファイバ集合時の
空隙率が高くなり、その分だけ通過抵抗が小さくなるし
目詰まりを起こしにくい。In addition, the filter will not be destroyed even if ultrasonic cleaning, chemical cleaning, or high-pressure backwashing is performed as cleaning regeneration. Furthermore, since the stainless steel fiber has a minute cross-sectional area,
Fine mesh (suitable for precision filtration processing).In addition, this stainless steel fiber has a ribbon shape with a different diameter cross section depending on the shape of the cutting blade, so it cannot be used with other shapes, such as a simple circular cross section. The porosity when the fibers are assembled is higher than that of the conventional fibers, and the passage resistance is correspondingly lower, making clogging less likely to occur.
更に、このステンレスファイバは種々の形状と厚みが容
易に得られると同時に、従来の素材との組合わせも容易
であるという便利さがある。Furthermore, this stainless fiber is convenient in that it can be easily obtained in various shapes and thicknesses, and at the same time can be easily combined with conventional materials.
く実 施 例〉
以下この発明の好適な実施例を図面に基づいて説明する
。Preferred embodiments of the present invention will be described below with reference to the drawings.
まずステンレスファイバの製造方法を先に説明する。こ
の実施例では５ＵＳ３０４製（ＳＵＳ３０３でも可）で
０．１５ｍｍφのワイヤ複数本用意し、そのワイヤの表
面を長手方向に沿って超硬合金製の切削刃により切削す
る。そして、このワイヤから削り取られたものが本願発
明に係るステンレスファイバＳであり、その最大径りは
約０．０Ｅｚ＋ｕｎであった。また、このステンレスフ
ァイバＳの断面形状は、用いた切削刃に応じた形状を呈
するものであり、拡大観察すると例えば第１図や第２図
のような断面形状のリボン状となっている。First, the method for manufacturing stainless fiber will be explained first. In this example, a plurality of wires made of 5US304 (SUS303 may also be used) and having a diameter of 0.15 mm are prepared, and the surfaces of the wires are cut along the longitudinal direction with a cutting blade made of cemented carbide. Then, what was scraped off from this wire was the stainless fiber S according to the present invention, and its maximum diameter was about 0.0Ez+un. The cross-sectional shape of the stainless fiber S has a shape corresponding to the cutting blade used, and when observed under magnification, it has a ribbon-like cross-sectional shape as shown in FIGS. 1 and 2, for example.
そしてこのようにして得られたステンレスファイバＳを
集合すれば精密濾過用のフィルタとなる。When the stainless steel fibers S thus obtained are assembled, a filter for precision filtration is obtained.
このステンレスファイバＳの集合体であるフィルタは、
ステンレスファイバＳが前述の如く微小断面積であるの
で、目が非常に細かく精密濾過処理に好適である。加え
て、このステンレスファイバＳは前述の如く切削刃の形
状に応じた異径断面のリボン形状を呈しているので、他
の形状、例えば断面形状が単なる円形のものなどと比較
して空隙率が高くなり、その分だけ通過抵抗が小さくな
るし目詰まりを起こしにくくなる。また、種々の形状（
シート状や立体状その他）に成形可能であり、所望の厚
さと面積を有するフィルタを容易に得ることができる。This filter, which is an assembly of stainless fibers S, is
Since the stainless steel fiber S has a minute cross-sectional area as described above, it has very fine mesh and is suitable for precision filtration processing. In addition, as mentioned above, this stainless fiber S has a ribbon shape with a cross section of different diameters depending on the shape of the cutting blade, so it has a lower porosity than other shapes, such as those with a simple circular cross section. As the height increases, the passage resistance becomes smaller and clogging becomes less likely to occur. In addition, various shapes (
It can be molded into a sheet, three-dimensional shape, etc., and a filter having a desired thickness and area can be easily obtained.
第３図〜第４図はそのフィルタの利用例を示す図である
。第３図はステンレスファイバＳの集合体をプレスによ
りシート状にしたフィルタ１であり、従来の枦祇と同じ
ように利用することができる。第４図は第３図のフィル
タの厚さをより増したものである。第５図はステンレス
ファイバＳの集合体たるフィルタ３を従来の「支持体」
としての金網状フィルタ４にてサンドインチしたフィル
タユニット５を示すものである。第６図は方形シート状
に成形したフィルタ６を筒形にスパイラル状に巻きつけ
たものである。第７図は小径で金属製の孔７あき内筒（
支持体）８と従来の金網状フィルタにて形成した大径の
外筒９との間にフィルタ１０を詰め込んだフィルタユニ
ット１１を示すものである。更に図示しないが、種々の
形状をした容器状の支持体内にステンレスファイバＳの
集合体たるフィルタを収納したフィルタユニットを利用
することもできる。FIGS. 3 and 4 are diagrams showing examples of the use of the filter. FIG. 3 shows a filter 1 in which an aggregate of stainless steel fibers S is pressed into a sheet shape, and can be used in the same way as the conventional 枦细. FIG. 4 shows the filter of FIG. 3 with increased thickness. Figure 5 shows a filter 3, which is an assembly of stainless steel fibers S, used as a conventional "support body".
This figure shows a filter unit 5 sandwiched between wire mesh filters 4 as shown in FIG. FIG. 6 shows a filter 6 formed into a rectangular sheet and spirally wound around a cylinder. Figure 7 shows a small diameter metal inner cylinder with 7 holes (
This figure shows a filter unit 11 in which a filter 10 is packed between a support body 8 and a large diameter outer tube 9 formed of a conventional wire mesh filter. Furthermore, although not shown, it is also possible to use a filter unit in which a filter, which is an assembly of stainless steel fibers S, is housed in a container-like support having various shapes.
第８図は本願発明に係るフィルタを利用した濾過装置を
示す図である。１２はタンクで、内部には前記第７図に
示したフィルタユニッ）１１が複数本配置されている。FIG. 8 is a diagram showing a filtration device using a filter according to the present invention. Reference numeral 12 denotes a tank, in which a plurality of filter units 11 shown in FIG. 7 are arranged.
このフィルタユニット１１の下端は、その内筒８が出側
パイプ１３に接続されており、この出側パイプ１３はタ
ンク■２の外側へ導かれている。そして、このタンク１
２内は、一定圧力で圧送されてくるアルコール飲料の原
液１４で満たされている。この原液１４は一定量づつフ
ィルタユニット１１の外側から外筒９部分とフィル７１
０部分を透過して濾過され、孔７から内筒８内へ入って
きた濾過液１５を出側パイプ１３から回収できるように
なっている。At the lower end of this filter unit 11, its inner cylinder 8 is connected to an outlet pipe 13, and this outlet pipe 13 is led to the outside of the tank 2. And this tank 1
The interior of the container 2 is filled with an alcoholic beverage stock solution 14 that is pumped under constant pressure. This stock solution 14 is poured in a fixed amount from the outside of the filter unit 11 into the outer cylinder 9 and the filter 71.
The filtrate 15 that has passed through the 0 part and entered the inner cylinder 8 from the hole 7 can be recovered from the outlet pipe 13.
この実施例におけるフィルタユニット１１のフィルタ１
０は、前述のように従来のフィルタと比較して目詰まり
を起こしづらいが、それでも長時間の濾過処理によりフ
ィルタユニット１１の外側にケーキが堆積しはじめたと
きには、フィルタユニット１１をタンク１２から取出し
て洗浄し容易に再生することができる。この場合の洗浄
方法としては、例えば逆洗洗浄、薬液による洗浄、超音
波洗浄などがある。この際、この発明に係るフィルタが
、強度と耐蝕性を備えたステンレスファイバＳの集合体
であることから、高圧による逆洗洗浄や超音波洗浄を行
ってもフィルタ及びそのフィルタユニットが破壊せず、
また苛性ソーダなどによる薬液洗浄を行ってもフィルタ
が変質したり溶けたりすることがない。Filter 1 of filter unit 11 in this embodiment
0 is less prone to clogging than conventional filters, as described above, but if cake begins to accumulate on the outside of the filter unit 11 due to long-term filtration processing, the filter unit 11 is removed from the tank 12. It can be washed and easily regenerated. Cleaning methods in this case include, for example, backwash cleaning, chemical cleaning, and ultrasonic cleaning. At this time, since the filter according to the present invention is an assembly of stainless steel fibers S having strength and corrosion resistance, the filter and its filter unit will not be destroyed even if backwashing with high pressure or ultrasonic cleaning is performed. ,
Furthermore, even if the filter is cleaned with a chemical solution such as caustic soda, the filter will not deteriorate or dissolve.
尚、以上の説明においては、ステンレスファイバだけの
フィルタを例に示したが、これに限定されるものではな
く、ステンレスファイバに予めセラミックコーティング
しておき、それを集合したフィルタを用いることができ
る。ステンレスファイバにセラミックコーティングすれ
ば、耐蝕性にとても優れたフィルタが得られるので、ア
ルコール飲料の濾過その他において、その分好適な濾過
が期待できる。また、前記フィルタやステンレスファイ
バに、従来の有機又は無機系繊維、例えばセルロースア
セテートや合成繊維などと組み合わせたフィルタを用い
ることもできる。In the above description, a filter made only of stainless steel fibers was shown as an example, but the present invention is not limited to this, and it is also possible to use a filter in which stainless fibers are coated with ceramics in advance and assembled. If stainless fiber is coated with ceramic, a filter with excellent corrosion resistance can be obtained, so it can be expected to be suitable for filtration of alcoholic beverages and other applications. Furthermore, it is also possible to use a filter in which conventional organic or inorganic fibers such as cellulose acetate or synthetic fibers are combined with the filter or stainless steel fiber.
〈発明の効果〉
この発明に係るフィルタ及びそれを用いたフィルタユニ
ットならびに精密濾過処理方法は、以上説明してきた如
き内容のものであって、ステンレス鋼製のワイヤを切削
して得られる微小断面積のステンレスファイバを集合し
たフィルタを利用するものなので、化学的に安定で耐蝕
性があり、濾過対象である気体や液体の種類を選ばず、
どのようなものでも濾過てきる。<Effects of the Invention> The filter, the filter unit using the same, and the precision filtration treatment method according to the present invention have the content as described above, and have a micro cross-sectional area obtained by cutting a stainless steel wire. Since it uses a filter made of stainless steel fibers, it is chemically stable and corrosion resistant, and can be used regardless of the type of gas or liquid to be filtered.
It can filter anything.
また、前記ステンレスファイバは微小断面積であるので
、目が細かく精密濾過処理に好適である。Further, since the stainless steel fiber has a minute cross-sectional area, it is suitable for fine filtration treatment.
加えて、このステンレスファイバは切削刃の形状に応じ
た異径断面のリボン形状を呈することとなるので、他の
形状、例えば断面形状が単なる円形のものと比較して空
隙率が高くなり、その分だけ通過抵抗が小さくなるし目
詰まりを起こしにくい。In addition, this stainless fiber has a ribbon shape with a cross section of a different diameter depending on the shape of the cutting blade, so the porosity is higher than that of other shapes, such as those with a simple circular cross section. The passage resistance is reduced accordingly and clogging is less likely to occur.
更に、超音波洗浄や薬剤洗浄などを行なってもフィルタ
が破壊しないので、洗浄再生が容易で確実である。Furthermore, since the filter is not destroyed even when subjected to ultrasonic cleaning or chemical cleaning, cleaning and regeneration are easy and reliable.
そして、ステンレスファイバは種々の形状と厚みが容易
に得られると同時に、従来の素材との組合わせも容易で
あるという便利さがある。Stainless fibers are convenient in that they can be easily obtained in various shapes and thicknesses, and can also be easily combined with conventional materials.
第１図及び第２図は、各々この発明の実施例に係るステ
ンレスファイバの形状を示す拡大図、第３図〜第７図は
、各々フィルタやフィルタユニットを示す斜視図、そし
て
第８図はフィルタユニットを利用した濾過装置の概略図
である。
１．２，３，６．１０ ・−フィルタ５．６．１１
・−・ フィルタユニット４− 金網フィルタ（支持
体）
８−・・ 内筒（支持体）
９− 外筒（支持体）
ｓ −ステンレスファイバ1 and 2 are enlarged views showing the shape of a stainless fiber according to an embodiment of the present invention, FIGS. 3 to 7 are perspective views showing a filter and a filter unit, and FIG. 8 is a perspective view showing a filter and a filter unit, respectively. 1 is a schematic diagram of a filtration device using a filter unit. 1.2, 3, 6.10 - Filter 5.6.11
・-・ Filter unit 4- Wire mesh filter (support body) 8-・ Inner cylinder (support body) 9- Outer cylinder (support body) s - Stainless fiber
Claims (6)
断面積のステンレスファイバを集合して成るフィルタ。(1) A filter made up of a collection of stainless steel fibers with a micro cross section obtained by cutting stainless steel wire.
又は無機系繊維を組合わせて成るフィルタ。(2) A filter comprising the stainless steel fiber according to claim (1) in combination with organic or inorganic fiber.
ラミックコーティングしたものを集合して成るフィルタ
。(3) A filter comprising stainless steel fibers according to claim (1) which have been previously coated with a ceramic coating.
タを、支持体で担持又は挟持、或いは支持体内に収納し
て成るフィルタユニット。(4) A filter unit comprising the filter according to any one of claims (1) to (3) supported or clamped by a support, or housed in a support.
タに、液体又は気体を透過せしめる精密濾過処理方法。(5) A precision filtration treatment method in which a liquid or gas is allowed to pass through the filter according to any one of claims (1) to (3).
精密濾過処理方法。(6) The precision filtration treatment method according to claim (5), wherein the liquid is an alcoholic beverage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63294584A JP2735587B2 (en) | 1988-11-24 | 1988-11-24 | Filter, filter unit using the same, and precision filter processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63294584A JP2735587B2 (en) | 1988-11-24 | 1988-11-24 | Filter, filter unit using the same, and precision filter processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02144108A true JPH02144108A (en) | 1990-06-01 |
| JP2735587B2 JP2735587B2 (en) | 1998-04-02 |
Family
ID=17809670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63294584A Expired - Lifetime JP2735587B2 (en) | 1988-11-24 | 1988-11-24 | Filter, filter unit using the same, and precision filter processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2735587B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013202560A (en) * | 2012-03-29 | 2013-10-07 | Ishigaki Co Ltd | Deep layer filtration device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053953A (en) * | 1973-09-13 | 1975-05-13 | ||
| JPS52132462A (en) * | 1976-04-28 | 1977-11-07 | Nippon Seisen Co Ltd | Reinforced metal filter medium and manufacturing method therefor |
| JPS53114571A (en) * | 1977-07-18 | 1978-10-06 | Nippon Seisen Co Ltd | Filter medium |
| JPS5440777A (en) * | 1977-09-05 | 1979-03-30 | Shikoku Kakoki Co Ltd | Method of making truncateddconeeshaped container packed with content |
| JPS5841933A (en) * | 1981-08-21 | 1983-03-11 | ユニチカ株式会社 | Fiber product having anti-static property |
| JPS61227812A (en) * | 1985-04-02 | 1986-10-09 | Sumitomo Electric Ind Ltd | Sintered filter of metallic fiber |
-
1988
- 1988-11-24 JP JP63294584A patent/JP2735587B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053953A (en) * | 1973-09-13 | 1975-05-13 | ||
| JPS52132462A (en) * | 1976-04-28 | 1977-11-07 | Nippon Seisen Co Ltd | Reinforced metal filter medium and manufacturing method therefor |
| JPS53114571A (en) * | 1977-07-18 | 1978-10-06 | Nippon Seisen Co Ltd | Filter medium |
| JPS5440777A (en) * | 1977-09-05 | 1979-03-30 | Shikoku Kakoki Co Ltd | Method of making truncateddconeeshaped container packed with content |
| JPS5841933A (en) * | 1981-08-21 | 1983-03-11 | ユニチカ株式会社 | Fiber product having anti-static property |
| JPS61227812A (en) * | 1985-04-02 | 1986-10-09 | Sumitomo Electric Ind Ltd | Sintered filter of metallic fiber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013202560A (en) * | 2012-03-29 | 2013-10-07 | Ishigaki Co Ltd | Deep layer filtration device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2735587B2 (en) | 1998-04-02 |
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