JPS5949816A - Filter element - Google Patents
Filter elementInfo
- Publication number
- JPS5949816A JPS5949816A JP14676083A JP14676083A JPS5949816A JP S5949816 A JPS5949816 A JP S5949816A JP 14676083 A JP14676083 A JP 14676083A JP 14676083 A JP14676083 A JP 14676083A JP S5949816 A JPS5949816 A JP S5949816A
- Authority
- JP
- Japan
- Prior art keywords
- filter body
- filter
- element according
- outside
- engaged
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2407—Filter candles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4218—Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
- B01D2273/20—High temperature filtration
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、金属通しボルトにより」一部と下部との間に
締めイ１１けられている管駄セラミック濾過体を持つ、
１７５湿ガスを濾過する濾過装置の幅過累子に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention has a hollow ceramic filter body which is fastened between a part and a lower part by a metal through bolt.
175 relates to a width filter for a filter device for filtering wet gas.
この種の濾過素子が濾過装置の穴あき板にはめられてい
る。濾過すべきＩＩ ｌ？ｉＡガスの高温において、一
方ではセラミック、他方では金属の膨張係数が異なるこ
とは、濾過体が保持部または補強部においてゆるむよう
に作用する。 ５ （］ （１″ｃまでのｆ！ｒＡ ）
肛では、／ｌ： １Ｂ３ばねの締イ・」けに、上りゆる
むことを回避することができる。それ以」二の温度にお
いては、圧縮ばねの使用は所望の成果をもたらさない。A filter element of this type is fitted into a perforated plate of a filter device. II l to filter? At the high temperature of the iA gas, the different coefficients of expansion of the ceramic on the one hand and the metal on the other hand cause the filter body to loosen in the holding or reinforcing part. 5 (] (f!rA up to 1″c)
In the anus, by tightening the 1B3 spring, it is possible to prevent it from coming loose. At temperatures below that point, the use of compression springs does not yield the desired results.
なぜならば圧縮はねはこのような１．Ａ度では弾性を失
うからである１、さらに圧縮ばねの初応力は常温状態に
おいて非常に大きい筈であり、そのことは濾過体の破損
の危険を必然的に伴う。This is because the compression splash is like this 1. This is because elasticity is lost at A degree.1 Furthermore, the initial stress of the compression spring must be very large at room temperature, which inevitably involves the risk of damage to the filter body.
保持部における濾過イ４、の１−述のゆるみＩＡ機械的
理１１．１から不利であるの１）１．ｆ ’＋ ”ｉｌ
’、ゆるむ際に間隙が生じ、これらの間隙を通って１”
’Ｉ Ｔ：ｕｉカスが濾過されずに非雄過側からｔｔ’
Ｌ濾過側濾過側流入するためにも不利である。The loosening of filtration in the holding part 4 is disadvantageous from the above-mentioned IA Mechanical Principle 11.1 1) 1. f'+”il
', gaps are created when loosening, and through these gaps 1"
'IT: ui dregs are not filtered and tt from the non-filtering side'
It is also disadvantageous because the L filtration side flows into the filtration side.
本発明の課題は、濾！、・１５体およびこの濾過体の保
持部の膨張係数が！Ｊ１．なるにも拘らず濾過体が保持
部に固定的かつ密にはＹ勺ている、冒頭に挙げたような
濾過素子を（ち１案することてＩ）る３、本発明によれ
ば上述の課題は冒υｔ＋に挙げたような濾過素子におい
て、に部および（あるいは下部が濾過体の外側へ係合あ
るいは濾７．゛・１体の内側へ係合し、かつ」一部と濾
過体との間および（あるいは）下部と濾過体との間で濾
過体の周囲に沿って弾包三嗣演！密封Ｊ１が囲にようす
ることによって解決される９、この場合常ｎ４，１状態
において危険な初応力が濾過体に作用しない１１通しボ
ルトが濾過体よりはるかに激しく膨張’（Ｊ−る尚温ガ
ス濾過の際は、濾過体が密ＪｊＪ片上−４：’ ｒ；’
動する。The problem of the present invention is filtering! ,・15 body and the expansion coefficient of the holding part of this filter body! J1. 3.According to the present invention, the filter element is fixedly and tightly attached to the holding part, such as the one mentioned at the beginning. The problem is that in a filter element like the one mentioned above, the upper part and (or the lower part) engage the outside of the filter body or the inside of the filter body, and the part and the lower part engage with the outside of the filter body. Between and/or between the lower part and the filter body, the sealing J1 is solved by encircling the perimeter of the filter body9, in which case it is always dangerous in the n4,1 condition. The 11-through bolt, which does not apply any initial stress to the filter body, expands much more violently than the filter body.
move.
それによって、−力では濾１１）１体を保持されたまま
にし、他方では濾過体と上部または下部との間に間隙が
生じないようにすることができる。As a result, it is possible to keep the filter 11) in place under force and, on the other hand, to avoid gaps between the filter body and the upper or lower part.
密Ｊコｊ片は、およそＩ Ｏ（ｌ Ｏ″Ｇまでの高温ガ
ス温度により損われないはとの耐熱性を持っている。。Dense J-pieces have a heat resistance that is unimpaired by hot gas temperatures up to approximately I O (l O''G).
Ｕ勾シ
密封片を上部あるいは下部と濾過体の一力との間にだけ
設けかつ濾過体の他端を下部または１−、’；１（に密
に固定すれば充分である１、シかしなるべく −ｌ−：
ｎ＋１および下部と濾過体との間に囲にようする密」
〕＋片が設けられるのが好ましい。It is sufficient to provide a U-shaped sealing piece only between the upper or lower part and one side of the filter body, and to tightly fix the other end of the filter body to the lower part or 1-, ';1 (1, ';1). -l-:
n+1 and the space between the lower part and the filter body.
] It is preferable that a + piece is provided.
それによって濾過体の両端は上部と下部との間において
相対運動を自由に行なうことができる、。This allows both ends of the filter to freely move relative to each other between the upper and lower parts.
本発明の好ましい構成では、−１一部あるいは下部が濾
過体の外側へ保合し、他方の部分が濾過体の内側へ係合
している。それによって、濾過体の一端が内周に保持さ
れ一１他端が外周に保持されている。こうして濾過体に
関する、」一部および下部の通しボルトに対して半径方
向の膨張が互いに反対に作用する。本発明の好ましし１
構ｌ戊では、濾過装置の穴あき板にはまる部分が濾過体
の外側へ係合する１、この部分は通常１ユ部である。そ
れによって同時６ｉ７この７４１；分の筒中な４’１成
が検器される。In a preferred configuration of the present invention, -1 part or lower part is retained on the outside of the filter body, and the other part is engaged on the inside of the filter body. As a result, one end of the filter body is held on the inner periphery and the other end is held on the outer periphery. The radial expansions thus act against each other on the partial and lower through bolts of the filter body. Preference 1 of the present invention
In this configuration, the portion of the filter that fits into the perforated plate engages with the outside of the filter, and this portion is usually a portion. As a result, the 4'1 component in the 741; minute cylinder is simultaneously detected.
上部または下部の１１ＩＩｌ線ツノ向係合Ｊ？さけ、Ｊ
ｉ＆ ｌｉ’ｂの高温ガス湯度において／１する、通し
ポル１−と濾過体との膨張差より大きいように・Ｊ法を
冗められる・のが好ましい。この場合、僧互助中に上部
あるいは下部が濾過体にλ・Ｊしてずれてもずれなくて
も構わない。いずれにしても酸膜づ本は１３１ｉからも
下部からもはずれることがでＡツ、ふい。この場合間に
ようする密」〕Ｊ片は仝係合長さに百って延びている。Upper or lower 11III line horn direction engagement J? Salmon, J
It is preferable that the J method be made larger than the expansion difference between the through hole 1- and the filter body, which is equal to /1 at the high temperature gas temperature of i &li'b. In this case, it does not matter whether or not the upper or lower part of the filter body shifts by λ·J during mutual assistance. In any case, the acid film can come off both from 131i and from the bottom. In this case, the intermediate J piece extends over the length of the engagement.
本発明の別の構成にわいては、１一部および（あるいは
）下部とＭ ｉ、−、ｙ体のｆｌｌ：而との間へ弾性耐
熱密Ｍ環が挿入されている１、この＋’Ｋ 、１ゴ環お
よび隣接の囲によう密」ご１片を一体に形成することが
できる。その場合は囲にようする密、８１片は膨張およ
び収縮運動中に１部または“１色ゞり−から移動するこ
とができない。In another configuration of the present invention, an elastic heat-resistant tight M ring is inserted between the part and/or the lower part of the M i, -, y body. K, one piece can be formed integrally with the ring and adjacent surroundings. In that case, the surrounding 81 pieces cannot be moved from one part or "one color" during the expansion and contraction movements.
本発明のそれ以外のｆ」利な４１′Ｉ成は図面について
の実施例の以下の説明から明らかになる。Further advantageous features of the invention will become apparent from the following description of an embodiment with reference to the drawings.
濾過装置の穴あき板ｌに多数の濾過素子２が設けられて
いる。A large number of filter elements 2 are provided on a perforated plate l of the filter device.
濾過素子２は管状セラミック濾過体゛３を持っており、
この濾過体は金属通しボルト４により金属上部５および
金属下部６の間に締め付けられている。」二部５の縁７
が穴あき板１上に着座している。」一部５は、濾過体３
の外側へ係合するスリーブ８を持っている。上部５は中
心に孔９を持っており、この孔は濾過体３の内周３′と
−・直線をなしている。孔９を通って通しボルト４が延
びており、この通しボルトの帯片ｌＯがに１部５の段１
１に装着されている。帯片ｌＯは孔９を開放する。帯片
１０の開口部１２は、穴あき板１における濾過素子２の
取付けおよび取外しに役立つ。The filter element 2 has a tubular ceramic filter body 3,
This filter body is fastened between a metal upper part 5 and a metal lower part 6 by metal through bolts 4. ” Edge 7 of Part 2
is seated on the perforated plate 1. "Part 5 is filter body 3
It has a sleeve 8 that engages on the outside of the. The upper part 5 has a hole 9 in the center, which is in a straight line with the inner circumference 3' of the filter body 3. A through bolt 4 extends through the hole 9, and the strip lO of this through bolt is connected to step 1 of section 5.
It is installed on 1. The strip lO opens the hole 9. The openings 12 in the strip 10 serve for mounting and dismounting the filter element 2 on the perforated plate 1 .
スリーブ８の軸線方向長さは、最高の高温ガス温度にお
いて生ずる、通しボルトと濾過体との膨張差より大きい
ように大きさを定められている。濾過体３の外周３′は
スリーブ８の全長に亘って帯状密封片１：３で巻き（’
Ｉけられている。The axial length of the sleeve 8 is dimensioned to be greater than the differential expansion between the through bolt and the filter body that occurs at the highest hot gas temperatures. The outer periphery 3' of the filter body 3 is wrapped around the entire length of the sleeve 8 in a ratio of 1:3 ('
I'm being kicked out.
ざらに濾過体３の端面においてスリーブ８の中へ密封環
］４が挿入されている。・１；シ状密、ＩＪ片１３およ
び密封環１４は、濾過すべき市況ガスの熱に耐えかつ弾
性的である１、シフあき板１とに１部５との間の密封を
改善するために、縁７において別の耐高熱弾性密封環１
５が設けられている。A sealing ring 4 is inserted into the sleeve 8 roughly at the end face of the filter body 3 .・1; The IJ piece 13 and the seal ring 14 are elastic and can withstand the heat of the market gas to be filtered. 1. To improve the seal between the sieve perforated plate 1 and the part 5 and another high temperature resistant elastic sealing ring 1 at the edge 7.
5 is provided.
下部６は、濾過体３に係合するビン１６を持っている。The lower part 6 has a bin 16 that engages the filter body 3.
下部６は濾過体゛３を１・部において１′ＡＩ鎖してい
る。ビン１６の中へ通しボルト４のねじ４′がねじ込ま
れている。、？ｌａ過体：３へのビン６の軸線方向係合
長さは、スリーブＨの係合長さと同じ大きさに定められ
ている。ビン１６は耐高熱弾性密封片１７で巻き付けら
れている。The lower part 6 is chained with the filter body 3 in 1 part 1'AI. The thread 4' of the through bolt 4 is screwed into the vial 16. ,? The axial engagement length of the bottle 6 with the overbody 3 is set to be the same as the engagement length of the sleeve H. The bottle 16 is wrapped with a high heat resistant elastic sealing piece 17.
濾過体３の端面と下部らとの間へ耐高熱弾性密封環１８
が挿入されている。。A high heat resistant elastic sealing ring 18 is installed between the end face and the lower part of the filter body 3.
is inserted. .
濾過素子２はおよそ次のように構成される。The filter element 2 is constructed approximately as follows.
下部６に密封環１８を装着し、ビンＩｌｉをイ；７状密
封片１７で巻き付け、続いて濾過体３の中へ押し込む。A sealing ring 18 is attached to the lower part 6, and the bottle Ili is wrapped with a seven-shaped sealing piece 17, and then pushed into the filter body 3.
続いて濾過体３を４二部において帯状密封片１３で巻き
付け、かつ密封環１４をスリーブ８に挿入後押し付ける
。最後に通しボルト４をねし込む。Subsequently, the filter body 3 is wrapped around the band-shaped sealing piece 13 at 42 parts, and the sealing ring 14 is inserted into the sleeve 8 and pressed. Finally, screw in the through bolt 4.
１ｉ’ｉｌ Ｗｉ！ガス濾過の際は高温ガスが濾過体３
および孔９を通って行く。その際通しボルト４が濾過体
３より激しく膨張するので、下部６が濾過体３に対して
下方へ移動する。その際濾過体１３の内周３′が帯状密
封片１７において消りかつ外周３′Ｊが帯状密封片１３
においてン骨る。上部あるいは下部に対する滑りあるい
は主として」二部あるいは下部に対する滑りが起こるか
どうかは、その都度生ずる摩擦力による。あらゆる場合
において、濾過体３はスリーブ８からもビン１６からも
滑り出ないので、濾過体３が常に上部５および下部６に
保持されかつこれらの部分に対して密封されたままであ
ることが保ｄ１１．される５゜軸線方向の膨張のほかに
、上部５および下部６に半径方向の膨張も生ずる。半径
方向の膨張のためスリーブ８が拡大し、その結果スリー
ブ８と濾過体３の外周３＃との間の保持力が減少するか
も知れない。しかし反対に、ビン１６の半径方向膨張の
ために濾過体゛）の内周：）′とビン１６との間の保持
力が強化される。。1i'il Wi! During gas filtration, high temperature gas passes through filter body 3
and through hole 9. At this time, the through bolt 4 expands more violently than the filter body 3, so that the lower part 6 moves downward with respect to the filter body 3. At this time, the inner periphery 3' of the filter body 13 disappears on the band-shaped sealing piece 17, and the outer periphery 3'J of the filter body 13 disappears on the band-shaped sealing piece 17.
It's a pain in the ass. Whether sliding against the upper or lower part or primarily against the two parts or the lower part depends on the frictional forces that occur in each case. In all cases, the filter body 3 does not slip out either from the sleeve 8 or from the bottle 16, so that it is ensured that the filter body 3 always remains held in the upper part 5 and the lower part 6 and sealed against these parts. ．． In addition to the 5° axial expansion that occurs, a radial expansion also occurs in the upper part 5 and the lower part 6. Due to the radial expansion, the sleeve 8 may expand, resulting in a reduction in the holding force between the sleeve 8 and the outer circumference 3# of the filter body 3. However, on the contrary, due to the radial expansion of the bottle 16, the holding force between the bottle 16 and the inner periphery of the filter body ``)'' is strengthened. .
第１図は濾過素子の助面図、第２図は第１図の矢印ＩＩ
−Ｉ＋の方向に見た拡大ヅ面図である。
ｌ・・・穴あき板、３・・・濾過体、７１′ ・・・内
周、３′・・・外周、４・・・通しポル１〜．５・・・
上部、６・・・下部、８・・・スリ ブ、９・・・孔、
１３゜１７・・・密封片Figure 1 is a side view of the filter element, Figure 2 is the arrow II in Figure 1.
It is an enlarged cross-sectional view seen in the direction of −I+. l... Perforated plate, 3... Filter body, 71'... Inner circumference, 3'... Outer circumference, 4... Through port 1~. 5...
Upper part, 6... lower part, 8... sleeve, 9... hole,
13゜17...Sealing piece
Claims (1)
られている管状セラミック濾過体を持つ、ｌｔ石温ガス
を濾過する濾過装置の濾Ａ素子において、」二部（５）
および（あるいは下部（６）が濾過体（３）の外側へ係
合あるいは濾過体（３）の内側へ係合し、かつ上部（５
）と濾過体（３）との間および（あるいは）下部（６）
と濾過体（３）との間で濾過体（３）の周囲（３’、３
”）に沿って弾性耐熱密封片（１：３． ＋７１が囲に
ようすることを特徴とする濾過素子。 ２一方の部分（土部５あるいは下部６）が濾過体（３）
の外側へ係合し、他方の部分（下ＦＩＸ６あるいは上部
５）が濾過体（３）の内側へ係合することを特徴とする
特許請求の範囲第１項に記載の濾過素子。 ３ Ｍｉ過装置の穴あき板（１）にはまる部分（５，６
）が濾過体（３）の外側へ係合することを特徴とする特
ｔ’Ｆ ；ｉｉ＃求の範囲第２」１′１に記・１氏の洩
過素子。 ４ 囲にようする密封Ｊ４．（１３，１７）が仝係合長
さに亘って延びていることを特徴とする特１１゜請求の
範囲第１項ないし第３ ｒｒｉの−）ち１つに記載の濾
過素子。 ５ 軸線方向の係合長さが、ｂ／ ｌｉ’、ｉｌの商ｎ
−１１カス温度において生する、ｎｎ ｌノボルｌ−（
／１１とθＮ濾過体３）との膨張差より大きいことを１
、′１徴とする、特許請求の範囲第１珀ないし第４Ｊｉ
′ｊのうち１つに記載の濾過素子１． ６ 囲にようする密封Ｊ’＋ｌＩ３，１７）が’７＋？
ｌ’ｕ！状態において上部（５）または上部（６）と
濾過体に３）の周囲（３’、３’）との間へＪ’ｌｌｌ
Ｌ／込有れていることを特徴とする特、１／１請求の
範囲第１珀ないし第５項のうち１つに＋！Ｉ！載の４び
過少ｒ、、７ 上部（５）および（あるいは）下部（（
１）と濾過体（３）の端面との間へ弾性耐熱密封１′！
１“０１４． ＋８）が挿入されていることを特徴とす
る特爵請求の範囲第１項ないし第６項のうち１つに記載
の輸過素子。[Scope of Claims] 1. In a filter A element of a filtration device for filtering hot stone gas, which has a tubular ceramic filter body fastened between an upper part and a lower part by a metal through-bolt, Part 2 (5)
and (or the lower part (6) engages with the outside of the filter body (3) or the inside of the filter body (3), and the upper part (5)
) and the filter body (3) and/or the lower part (6)
and the filter body (3) around the filter body (3) (3', 3
A filtration element characterized by an elastic heat-resistant sealing piece (1:3.
2. The filter element according to claim 1, wherein the filter element (3) is engaged with the outside of the filter body (3), and the other part (lower FIX 6 or upper part 5) is engaged with the inside of the filter body (3). 3 The part (5, 6) that fits into the perforated plate (1) of the Mi filter device
) is engaged with the outside of the filter body (3). 4 Sealing around J4. 11. The filter element according to claim 1, wherein (13, 17) extend over the engagement length. 5 The engagement length in the axial direction is the quotient of b/li', il n
nn l novol l-(
1 is greater than the expansion difference between /11 and θN filter body 3).
, '1 character, Claims 1 to 4 Ji
1. The filter element according to one of 'j. 6 Is the enclosed seal J'+lI3,17) '7+?
l'u! J'llll between the upper part (5) or the upper part (6) and the surroundings (3', 3') of the filter body 3)
L/included in one of claims 1 to 5 +! I! The upper (5) and (or) the lower ((
Elastic heat-resistant seal 1' between 1) and the end face of the filter body (3)!
1"014.+8)" is inserted, the transport element according to one of claims 1 to 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823234321 DE3234321A1 (en) | 1982-09-16 | 1982-09-16 | Filter element |
| DE32343213 | 1982-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5949816A true JPS5949816A (en) | 1984-03-22 |
Family
ID=6173357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14676083A Pending JPS5949816A (en) | 1982-09-16 | 1983-08-12 | Filter element |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5949816A (en) |
| DE (1) | DE3234321A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60161425U (en) * | 1984-04-05 | 1985-10-26 | 旭硝子株式会社 | Porous ceramic tube |
| JPH0212421U (en) * | 1988-07-05 | 1990-01-25 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3704539A1 (en) * | 1987-02-13 | 1988-08-25 | Hoelter Heinz | Fire resistant filter, preferably for mining, having an elastic connection piece |
| DE4007724A1 (en) * | 1990-03-10 | 1991-09-12 | Ernst Apparatebau Gmbh & Co | SOOT FILTER FOR DIESEL ENGINES |
| CN104436919A (en) * | 2014-11-12 | 2015-03-25 | 上海发电设备成套设计研究院 | Natural gas filtering device and using and disassembling method thereof |
| GB201908793D0 (en) * | 2019-06-19 | 2019-07-31 | Madison Filter 981 Ltd | Modular filter element for hot gas filtration |
-
1982
- 1982-09-16 DE DE19823234321 patent/DE3234321A1/en not_active Withdrawn
-
1983
- 1983-08-12 JP JP14676083A patent/JPS5949816A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60161425U (en) * | 1984-04-05 | 1985-10-26 | 旭硝子株式会社 | Porous ceramic tube |
| JPH0222018Y2 (en) * | 1984-04-05 | 1990-06-13 | ||
| JPH0212421U (en) * | 1988-07-05 | 1990-01-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3234321A1 (en) | 1984-03-22 |
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