JPH0323203B2 - - Google Patents
Info
- Publication number
- JPH0323203B2 JPH0323203B2 JP59280659A JP28065984A JPH0323203B2 JP H0323203 B2 JPH0323203 B2 JP H0323203B2 JP 59280659 A JP59280659 A JP 59280659A JP 28065984 A JP28065984 A JP 28065984A JP H0323203 B2 JPH0323203 B2 JP H0323203B2
- Authority
- JP
- Japan
- Prior art keywords
- filter plate
- plate
- filter
- fixed frame
- 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.)
- Expired - Lifetime
Links
- 238000001914 filtration Methods 0.000 claims description 31
- 239000010802 sludge Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 description 6
- 230000008961 swelling Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Description
【発明の詳細な説明】
（発明の属する技術分野）
本発明は汚泥の濾過濃縮装置に用いられる濾過
板を固定する方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical field to which the invention pertains) The present invention relates to a method for fixing a filter plate used in a sludge filtration and concentration apparatus.
（従来技術とその問題点）
一般に下水処理場などから排出される汚泥はそ
の中に98％以上の水分を含んでいるので、まず汚
泥を重力沈降させて95〜98％の含水率となるよう
に濃縮した後、加圧もしくは真空などによる機械
脱水を行なつて80％以下の含水率のケーキとし、
このケーキを焼却、埋立てなどの処分をしてい
る。(Prior art and its problems) Generally, sludge discharged from sewage treatment plants contains more than 98% water, so first the sludge is allowed to settle by gravity to reach a water content of 95 to 98%. After concentrating to
This cake is disposed of by incineration, landfill, etc.
最近下水処理場などの汚泥発生量が増加する傾
向があり、そのため汚泥処理装置の処理量を多く
したり、処理に要するエネルギーを省力化するな
どの必要性が高まつている。これを達成する処理
方法として、下水汚泥を濾過槽に導き、濾過板を
用いて水分を濾過除去して濃縮された汚泥を脱水
機に供給するのが、水分を重力沈降させる場合に
比べて脱水機の処理量を２倍程度向上することが
できることから、極めて効果的である。この際用
いられる濾過濃縮装置は濾過槽の全域または一部
に濾過板を設け、この濾過板を通して処理された
濾過水を瀘液排水管により排出する一方、脱水さ
れた濃縮汚泥を濾過槽の底部から排出するように
してある。 Recently, the amount of sludge generated in sewage treatment plants and the like has tended to increase, and therefore there is an increasing need to increase the throughput of sludge treatment equipment and to save energy required for treatment. As a treatment method to achieve this, sewage sludge is introduced into a filter tank, water is filtered out using a filter plate, and the concentrated sludge is supplied to a dehydrator. It is extremely effective because it can increase the throughput of the machine by about twice. The filtration and concentration equipment used at this time is equipped with a filter plate over the entire area or part of the filtration tank, and the filtrate that has been processed through this filtration plate is discharged through a filtrate drain pipe, while the dehydrated thickened sludge is sent to the bottom of the filtration tank. It is designed to be discharged from
第４図はこのような濾過濃縮装置を説明するた
めに要部構成の概要を示した断面図である。第４
図において濾過槽１の中に濾過板２が設置されて
おり、この濾過板２は例えばネツトなどからなる
支持板３の両面にそれぞれ濾布４，４ａを当てが
い、これを周囲で縫合してある。この濾過板２の
濾過槽１への固定については後述する。濾過板２
の一部に瀘液排出管５が接続され濾過槽１の外部
まで延びてバルブ６が取りつけられるが、その途
中で給気管７が分岐し図示してないコンプレツサ
ーに導かれる。一方外部から濾過槽１の底部にケ
ーキ排出管８の一端が濾過槽１を貫通するように
接続され濾過槽１の外部でバルブ９を介してポン
プ１０がケーキ排出管８の途中に設けられてい
る。 FIG. 4 is a cross-sectional view showing an outline of the main structure for explaining such a filtration/concentration device. Fourth
In the figure, a filter plate 2 is installed in a filter tank 1, and this filter plate 2 is made by applying filter cloths 4, 4a to both sides of a support plate 3 made of, for example, net, and sewing these together around the periphery. be. Fixing of the filter plate 2 to the filter tank 1 will be described later. Filter plate 2
A filtrate discharge pipe 5 is connected to a part of the filtration tank 1 and extends to the outside of the filtration tank 1, and a valve 6 is attached thereto.An air supply pipe 7 branches off in the middle and is led to a compressor (not shown). On the other hand, one end of a cake discharge pipe 8 is connected to the bottom of the filtration tank 1 from the outside so as to pass through the filtration tank 1, and a pump 10 is provided in the middle of the cake discharge pipe 8 through a valve 9 outside the filtration tank 1. There is.
以上のごとく構成された濾過濃縮装置を用いて
下水汚泥を脱水処理するときは濾過槽１の上部開
口から汚泥１１を濾過槽１に装入し、バルブ６を
開にすると、汚泥１１の水分は濾過板２の濾布
４，４ａを通して支持板３と濾布４，４ａの間で
濾過され、瀘液が瀘液排出管５を通つて排出され
る。汚泥１１中の水分の濾過が進行し濾布４，４
ａの表面にケーキ１２，１２ａが付着して濾過性
能が低下してきたとき、バルブ９を開き、ポンプ
１０を作動させ濾過槽１内の汚泥１１をケーキ排
出管８から排出する。次いでポンプ１０を停止
し、バルブ９，６を閉じ、図示してないコンプレ
ツサーにより圧搾空気を給気管７を通して濾過板
２内へ供給すると、圧搾空気の吹き出す力によつ
て濾布４，４ａの表面に付着したケーキ１２，１
２ａは浮き上がり、濾布４，４ａから剥離し濾過
槽１の底部に落下堆積するので再びバルブ９を開
にし、ポンプ１０を駆動して落下堆積したケーキ
１２，１２ａをケーキ排出管８を通して濾過槽外
へ排出する。 When dewatering sewage sludge using the filtration thickening device configured as described above, the sludge 11 is charged into the filtration tank 1 from the upper opening of the filtration tank 1, and when the valve 6 is opened, the moisture in the sludge 11 is removed. The filtrate is filtered through the filter cloths 4, 4a of the filter plate 2 between the support plate 3 and the filter cloths 4, 4a, and the filtrate is discharged through the filtrate discharge pipe 5. As the filtration of water in the sludge 11 progresses, the filter cloths 4, 4
When the cakes 12, 12a adhere to the surface of the filtration tank 1 and the filtration performance deteriorates, the valve 9 is opened, the pump 10 is activated, and the sludge 11 in the filtration tank 1 is discharged from the cake discharge pipe 8. Next, the pump 10 is stopped, the valves 9 and 6 are closed, and compressed air is supplied into the filter plate 2 through the air supply pipe 7 by a compressor (not shown), and the surface of the filter cloths 4 and 4a is Cake attached to 12,1
The cakes 2a float up, peel off from the filter cloths 4 and 4a, and fall and accumulate at the bottom of the filter tank 1. Therefore, the valve 9 is opened again, and the pump 10 is driven to pass the fallen cakes 12 and 12a through the cake discharge pipe 8 and into the filter tank. Discharge outside.
以上のような構成と作用をもつた濾過濃縮装置
のうち濾過板２についてさらに説明を加えると濾
過板２は第５図に平面図で示したように、通常下
方で巾が狭くなつた六角計の輪廓を有しており、
前述したように支持板３の両面に濾布４，４ａを
当てがつてそれらの周囲で縫合してあるが、周縁
部からやや内側の個所に第５図の如く適当数の鳩
目１３を打設する。第５図の点線は糸の縫い目を
表わす。この濾過板２を第６図に平面図で示した
ように濾過板２より外廓寸法のやや大きい角パイ
プからなる固定枠１４に鳩目１３の孔を通したワ
イヤーロープ１５を順次巻きつけることにより固
定する。かくして固定枠１４を第４図の濾過槽１
の内面に設けた図示してない案内の溝に必要な枚
数を嵌め込む。このときワイヤーロープ１５は緊
張して巻きつけてあるから濾過板２は固定枠１４
に引張られ初期には弛みのない状態になつてい
る。 To further explain the filter plate 2 of the filtration/concentration device having the above structure and function, the filter plate 2 is usually a hexagonal meter whose width narrows at the bottom, as shown in the plan view in Fig. 5. It has a circle of
As mentioned above, the filter cloths 4 and 4a are applied to both sides of the support plate 3 and sewn around them, but an appropriate number of eyelets 13 are placed at a position slightly inside from the periphery as shown in Fig. 5. do. The dotted lines in FIG. 5 represent thread stitches. As shown in a plan view in FIG. 6, this filter plate 2 is constructed by sequentially wrapping a wire rope 15 passing through the eyelets 13 around a fixed frame 14 made of a square pipe whose outer dimensions are slightly larger than that of the filter plate 2. Fix it. In this way, the fixed frame 14 is connected to the filter tank 1 in FIG.
Insert the required number of sheets into the guide groove (not shown) provided on the inner surface. At this time, since the wire rope 15 is wrapped around the wire rope 15 under tension, the filter plate 2 is attached to the fixed frame 14.
In the initial stage, there is no slack in the tension.
しかしながら濾過板２を固定枠１４に取りつけ
張られたまま濾過槽１の中に設置しても、汚泥１
１に浸漬されると濾過板２に弛みが生ずるように
なる。それは濾過板２に使用している化学繊維な
どの濾布４および４ａが膨潤する性質を有するか
らであり、とくに濾布４，４ａをナイロン製とし
た場合、汚泥中の膨潤によるこれらの伸びは数％
程度になる。通常濾過槽１の中には固定枠１４に
取りつけられた濾過板２が100〜200mmの間隔を保
つて長手方向が濾過槽１の底面に垂直となるよう
に多数配設される。したがつて濾布４，４ａが膨
潤して濾過板２に弛みを生じたとき隣接した濾過
板同志の表面が互に接触して濾過面積が減少し、
その結果濾過濃縮装置の汚泥処理量が大巾に低下
するという欠点を生ずる。 However, even if the filter plate 2 is installed in the filter tank 1 while being attached to the fixed frame 14, the sludge
1, the filter plate 2 becomes slack. This is because the filter cloths 4 and 4a, such as chemical fibers used in the filter plate 2, have the property of swelling. Especially when the filter cloths 4 and 4a are made of nylon, their expansion due to swelling in the sludge is number%
It will be about. Usually, in the filtration tank 1, a large number of filtration plates 2 attached to a fixed frame 14 are arranged with an interval of 100 to 200 mm so that the longitudinal direction thereof is perpendicular to the bottom surface of the filtration tank 1. Therefore, when the filter cloths 4, 4a swell and the filter plate 2 becomes slack, the surfaces of adjacent filter plates come into contact with each other, reducing the filtration area.
As a result, the sludge throughput of the filtration/concentration device is greatly reduced.
（発明の目的）
本発明の目的は上述の欠点を除去し濾過板が汚
泥中に浸漬され濾布が膨潤して伸びを生じたとき
でも濾過板が弛まず隣接した濾過板同志が互に接
触することのない濾過板の固定方法を提供するこ
とにある。(Objective of the Invention) The object of the present invention is to eliminate the above-mentioned drawbacks, and to prevent the filter plate from loosening even when the filter plate is immersed in sludge and the filter cloth swells and stretches, and the adjacent filter plates are in contact with each other. The purpose of the present invention is to provide a method for fixing a filter plate without having to do anything.
（発明の要点）
本発明は濾過板を固定枠に取りつけるに当り、
濾過板と固定枠との間に弾性機能を有する部材を
介在させて、この弾性部材の両端部をそれぞれ濾
過板と固定枠とに取りつけることにより両者を連
結し、濾過板の膨潤による変形を弾性部材に吸収
させるようにしたものである。(Summary of the Invention) In the present invention, when attaching the filter plate to the fixed frame,
A member having an elastic function is interposed between the filter plate and the fixed frame, and both ends of this elastic member are attached to the filter plate and the fixed frame, respectively, to connect the two, and the deformation due to swelling of the filter plate is elastically prevented. It is designed to be absorbed by the member.
（発明の実施例） 以下本発明を実施例に基づき説明する。(Example of the invention) The present invention will be explained below based on examples.
第１図は本発明の方法を適用した固定枠に取り
つけられた濾過板の平面図であり、第４図〜第６
図と共通部分を同一符号で表わしてある。第１図
における濾過板２と固定枠１４の形状については
第６図と同様であるから説明を省略する。第１図
が第６図と異なる所は第６図が１本のワイヤーロ
ープ１５を順次鳩目１３の孔を通しながら固定枠
１４に巻きつけていたのに対し、第１図では固定
枠１４の内面側にＵ字状の固定金具１６を鳩目１
３と対向する位置に溶接などで固定しておき、Ｕ
字状金具１６と鳩目１３とに中央部分にコイル状
スプリングが形成されたワイヤー１７の先端を懸
けることにより濾過板２を保持している点にあ
る。ワイヤー１７は例えばステンレス線からなる
コイル状スプリングの両端を必要な長さに引き伸
ばして直線とし、その先端のみ鉤状に成形したも
のを用いればよい。ただ固定枠１４の底部に設け
たＵ字状金具１６とこれに対応する鳩目１３との
間はコイル状スプリング部分をもたないワイヤー
だけで連結する。またこのワイヤー１７はコイル
状スプリング部分で濾布２の膨潤による伸びを吸
収してスプリング部分が縮まるようにするために
ワイヤー素材の線径、スプリング部の巻数、ピツ
チ間隔などを合目的に設計製作しなければならな
い。このようにすると濾過板２の変形に応じてワ
イヤー１７が追従しコイル状スプリング部分のピ
ツチ間隔が縮少することにより、濾過板２は汚泥
に浸漬された状態においても常に緊張し撓むこと
がない。 FIG. 1 is a plan view of a filter plate attached to a fixed frame to which the method of the present invention is applied, and FIGS.
Parts common to those in the figure are indicated by the same reference numerals. The shapes of the filter plate 2 and the fixed frame 14 in FIG. 1 are the same as those in FIG. 6, so a description thereof will be omitted. The difference between FIG. 1 and FIG. 6 is that in FIG. 6, one wire rope 15 is wound around the fixed frame 14 while passing through the eyelets 13 in sequence, whereas in FIG. Attach the U-shaped fixing metal fitting 16 to the eyelet 1 on the inner side.
Fix it by welding etc. in the position facing 3, and
The filter plate 2 is held by hanging the tip of a wire 17 having a coiled spring formed in the center between the metal fitting 16 and the eyelet 13. The wire 17 may be, for example, a coiled spring made of stainless steel wire, with both ends stretched to the required length to form a straight line, and only the tip thereof formed into a hook shape. However, the U-shaped metal fitting 16 provided at the bottom of the fixed frame 14 and the corresponding eyelet 13 are connected only by a wire without a coiled spring portion. In addition, this wire 17 is designed and manufactured with the wire diameter of the wire material, the number of turns of the spring part, the pitch interval, etc. appropriately selected so that the coiled spring part absorbs the elongation due to swelling of the filter cloth 2 and the spring part contracts. Must. In this way, the wire 17 follows the deformation of the filter plate 2, and the pitch interval of the coiled spring portion is reduced, so that the filter plate 2 is always under tension and does not bend even when immersed in sludge. do not have.
次に第２図は第１図とは異なる固定方法を採用
した濾過板と固定枠を示した平面図であり、第３
図は第２図におけるＡ−Ａの拡大断面図である。
第３図に見られるようにこの方法は濾過板２を固
定するために２枚の固定板１８，１８ａにより固
定枠を形成し、ゴム板１９を用いてその一端を濾
過板２の周縁部で濾布４と４ａの間に挿入して糸
２２で縫合するとともに、ゴム板１９の他端を固
定板１８と１８ａとの間に挿入してボルト２０、
ナツト２１で締結することにより濾過板２と固定
板１８および１８ａからなる固定枠とを連結して
いる。この際用いるゴム板１９は材料特性や厚さ
などを堪案して合目的な形状に設計製作する必要
があり、取りつけるときに引張り力を与えて濾布
４，４ａの変形を吸収できるようにやや伸ばした
状態にしておく。かくしてこの場合も濾過板２と
固定枠との間に弾性部材としてゴム板１９を介在
させてあるから、汚泥中における濾布４，４ａの
膨潤に起因する濾過板２の撓みなどは、ゴム板１
９が収縮することによつて阻止され、したがつて
濾過板２は常に正しい形状を保持することができ
る。 Next, Fig. 2 is a plan view showing the filter plate and fixing frame using a different fixing method from Fig. 1.
The figure is an enlarged sectional view taken along line A-A in FIG. 2.
As shown in FIG. 3, this method involves forming a fixing frame with two fixing plates 18 and 18a to fix the filter plate 2, and using a rubber plate 19 to secure one end of the frame to the peripheral edge of the filter plate 2. Insert between the filter cloths 4 and 4a and stitch with thread 22, and insert the other end of the rubber plate 19 between the fixing plates 18 and 18a and bolt 20,
By fastening with nuts 21, the filter plate 2 and a fixed frame consisting of fixed plates 18 and 18a are connected. The rubber plate 19 used at this time needs to be designed and manufactured into a suitable shape by considering the material properties and thickness, and must be designed so that it can absorb the deformation of the filter cloths 4, 4a by applying a tensile force when installing it. Leave it slightly stretched. In this case as well, since the rubber plate 19 is interposed as an elastic member between the filter plate 2 and the fixed frame, the bending of the filter plate 2 due to the swelling of the filter cloths 4, 4a in the sludge can be prevented by the rubber plate. 1
9 is prevented from shrinking, so that the filter plate 2 can always maintain its correct shape.
（発明の効果）
汚泥の濾過濃縮装置に用いる濾過板は従来濾過
板に設けた鳩目の孔にワイヤーロープを通して固
定枠に巻きつけて固定していたのに対し、本発明
の方法によれば実施例で述べたごとく、濾布と支
持板を縫合してなる濾過板が汚泥中に浸漬された
とき、濾布が膨潤して濾過板が撓み隣接する濾過
板同志が接触することがないよう、濾過板と固定
枠との間にコイル状スプリングやゴム板などの弾
性部材を介在させて固定したために、濾過板の変
形はこれらの弾性部材によつて吸収され、濾過板
は常に引張られた状態になつているので、隣接す
る濾過板同志が変形により接触するという現象が
生ずることなく、この濾過板の長期間の使用に対
しても大きな濾過面積を保持し安定な状態で汚泥
の脱水濃縮を行なうことができる。(Effects of the Invention) Conventionally, a filter plate used in a sludge filtration/concentration device was fixed by passing a wire rope through an eyelet hole provided in the filter plate and wrapping it around a fixed frame. As mentioned in the example, when a filter plate made by sewing a filter cloth and a support plate is immersed in sludge, the filter cloth swells and the filter plate is bent, so that adjacent filter plates do not come into contact with each other. Because the filter plate and the fixed frame are fixed by interposing elastic members such as coiled springs and rubber plates, deformation of the filter plate is absorbed by these elastic members, and the filter plate is always in a tensioned state. Because of this, the phenomenon of adjacent filter plates coming into contact with each other due to deformation does not occur, and even during long-term use of this filter plate, it maintains a large filtration area and dehydrates and concentrates sludge in a stable state. can be done.
第１図は本発明による濾過板の固定方法を示し
た平面図、第２図は第１図とは異なる方法を示し
た平面図、第３図は第２図の部分的断面図、第４
図は従来の濾過濃縮装置の要部構成断面図、第５
図は同じく濾過板の平面図、第６図は同じく濾過
板の固定方法を示した平面図である。
２：濾過板、３：支持板、４，４ａ：濾布、１
３：鳩目、１４：固定枠、１５：ワイヤーロー
プ、１６：Ｕ字状固定金具、１７：ワイヤー、１
８，１８ａ：固定板、１９：ゴム板、２０：ボル
ト、２１：ナツト、２２：糸。
FIG. 1 is a plan view showing a method of fixing a filter plate according to the present invention, FIG. 2 is a plan view showing a method different from that in FIG. 1, FIG. 3 is a partial cross-sectional view of FIG. 2, and FIG.
The figure is a cross-sectional view of the main parts of a conventional filtration and concentration device.
This figure is a plan view of the filter plate, and FIG. 6 is a plan view showing the method of fixing the filter plate. 2: Filter plate, 3: Support plate, 4, 4a: Filter cloth, 1
3: Eyelet, 14: Fixed frame, 15: Wire rope, 16: U-shaped fixing bracket, 17: Wire, 1
8, 18a: Fixed plate, 19: Rubber plate, 20: Bolt, 21: Nut, 22: Thread.
Claims (1)
に取りつけるに当り、濾過板と固定枠との間に弾
性部材を介在させ、該弾性部材の両端部をそれぞ
れ濾過板と固定枠とに取りつけたことを特徴とす
る濾過濃縮装置の濾過板の固定方法。 ２ 特許請求の範囲第１項記載の方法において、
濾過板と同じ輪廓を有しやや大きい角形パイプの
固定枠の各辺内面に設けた複数個のＵ字状金具
と、固定枠の内側に位置する濾過板周辺近傍でＵ
字状金具と対向して配設した複数庫の鳩目の孔と
に、中央部にコイル状スプリングが形成され両端
部付近が直線状に伸ばされたワイヤーの両先端に
形成した鉤状部をそれぞれ懸けることを特徴とす
る濾過濃縮装置の濾過板の固定方法。 ３ 特許請求の範囲第１項記載の方法において濾
過板の各辺にゴム板の一端を挿入して濾布ととも
に縫合し、ゴム板の他端を濾過板と同じ輪廓を有
しやや大きい２枚の板からなる固定枠の各板の間
に挿入して固定枠とともにボルトナツトにより締
結することを特徴とする濾過濃縮装置の濾過板の
固定方法。[Claims] 1. When attaching a filter plate used in a sludge filtration/concentration device to a fixed frame, an elastic member is interposed between the filter plate and the fixed frame, and both ends of the elastic member are connected to the filter plate and the fixed frame, respectively. A method for fixing a filter plate of a filtration and concentration device, characterized in that the filter plate is attached to a fixed frame. 2. In the method described in claim 1,
A plurality of U-shaped metal fittings are installed on the inner surface of each side of a fixing frame of a slightly larger rectangular pipe that has the same circumference as the filter plate, and a U-shaped fitting is provided near the periphery of the filter plate located inside the fixing frame.
Hook-like parts formed at both ends of the wire, which has a coiled spring formed in the center and stretched linearly near both ends, are inserted into the eyelet holes of the multiple compartments arranged facing the letter-shaped metal fittings. A method for fixing a filter plate of a filtration/concentration device, characterized by hanging the filter plate. 3. In the method described in claim 1, one end of the rubber plate is inserted into each side of the filter plate and sewn together with the filter cloth, and the other end of the rubber plate is attached to two pieces having the same circumference as the filter plate and slightly larger. A method for fixing a filter plate of a filtration/concentration device, which comprises inserting the plate between each plate of a fixed frame made of plates and fastening the plate together with the fixed frame using bolts and nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59280659A JPS61153110A (en) | 1984-12-27 | 1984-12-27 | Method for fixing filter plate of filtration and concentration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59280659A JPS61153110A (en) | 1984-12-27 | 1984-12-27 | Method for fixing filter plate of filtration and concentration apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61153110A JPS61153110A (en) | 1986-07-11 |
| JPH0323203B2 true JPH0323203B2 (en) | 1991-03-28 |
Family
ID=17628136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59280659A Granted JPS61153110A (en) | 1984-12-27 | 1984-12-27 | Method for fixing filter plate of filtration and concentration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61153110A (en) |
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|---|---|---|---|---|
| JP4964811B2 (en) * | 2008-03-13 | 2012-07-04 | メタウォーター株式会社 | Filter plate support structure |
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| KR20090057254A (en) * | 2008-09-25 | 2009-06-04 | 메타워터 가부시키가이샤 | Filtering and condensing apparatus of suction type |
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1984
- 1984-12-27 JP JP59280659A patent/JPS61153110A/en active Granted
Cited By (6)
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|---|---|---|---|---|
| US9062140B2 (en) | 2005-04-07 | 2015-06-23 | Nippon Shokubai Co., Ltd. | Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resin |
| US9926449B2 (en) | 2005-12-22 | 2018-03-27 | Nippon Shokubai Co., Ltd. | Water-absorbent resin composition, method of manufacturing the same, and absorbent article |
| US10358558B2 (en) | 2005-12-22 | 2019-07-23 | Nippon Shokubai Co., Ltd. | Water-absorbent resin composition, method of manufacturing the same, and absorbent article |
| US9090718B2 (en) | 2006-03-24 | 2015-07-28 | Nippon Shokubai Co., Ltd. | Water-absorbing resin and method for manufacturing the same |
| US8952116B2 (en) | 2009-09-29 | 2015-02-10 | Nippon Shokubai Co., Ltd. | Particulate water absorbent and process for production thereof |
| US9775927B2 (en) | 2009-09-29 | 2017-10-03 | Nippon Shokubai Co., Ltd. | Particulate water absorbent and process for production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61153110A (en) | 1986-07-11 |
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