JPS646887Y2 - - Google Patents
Info
- Publication number
- JPS646887Y2 JPS646887Y2 JP13085683U JP13085683U JPS646887Y2 JP S646887 Y2 JPS646887 Y2 JP S646887Y2 JP 13085683 U JP13085683 U JP 13085683U JP 13085683 U JP13085683 U JP 13085683U JP S646887 Y2 JPS646887 Y2 JP S646887Y2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- leaf
- leaves
- upper net
- support
- 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
Links
- 239000002893 slag Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 description 18
- 239000007787 solid Substances 0.000 description 18
- 238000001914 filtration Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011346 highly viscous material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Description
【考案の詳細な説明】
(産業上の利用分野)
この考案は葉状濾過機に関し、特に濾葉内部に
洩入介在する固形物粒子の堆積を防止するように
した濾過体の改良に関するものである。[Detailed description of the invention] (Field of industrial application) This invention relates to leaf filters, and in particular to improvements in filter bodies that prevent the accumulation of solid particles that leak into the inside of the filter leaves. .
(従来技術)
従来より、水平型加圧濾過機の一種とする葉状
濾過機が実用されている。(Prior Art) A leaf filter, which is a type of horizontal pressure filter, has been put into practical use.
第1図はこの種、葉状濾過機の構成図、第2図
はこの葉状濾過機に使用する従来の濾葉の断面図
である。 FIG. 1 is a block diagram of this type of leaf filter, and FIG. 2 is a sectional view of a conventional filter leaf used in this leaf filter.
図において、1は濾過機本体、2はこの本体内
に回転自在に装着した濾過体である。 In the figure, 1 is a filter main body, and 2 is a filter body rotatably mounted within this main body.
濾過体2は中空中心軸3に対し複数個の水平構
造の濾葉4を取付け、この濾葉4を中空中心軸3
に連通させたものである。 The filter body 2 has a plurality of horizontal filter leaves 4 attached to the hollow central shaft 3, and the filter leaves 4 are attached to the hollow central shaft 3.
It was communicated with.
しかして、従来の濾葉4は第2図に示すよう
に、支持板5上に目の荒い隙間保持用のサポート
ネツト6を介装してその上に目の細かい濾過用上
ネツト7を置き、支持板5周縁部に於いて締付け
環8を以て一体的に固着して成る。 In the conventional filter leaf 4, as shown in FIG. 2, a coarse support net 6 for maintaining gaps is interposed on a support plate 5, and a fine filtration upper net 7 is placed on top of the support net 6. , are integrally fixed at the peripheral edge of the support plate 5 with a tightening ring 8.
上記構成の濾過機に於ける濾過は、被濾過液を
加圧供給して行い、濾液は各濾葉4から中空中心
軸3の中空部を通つて外に出る。この濾過機の特
徴は、濾葉4に付着する濾滓の剥離にある。即
ち、濾過後、原液を本体内より抜き取り、各濾葉
4を取付けた中空中心軸3をモータ9で回転して
その遠心力で濾葉の外周へ振るい飛ばし、本体底
部に集まる濾滓を掻き板16で掻き出して排出す
るのである。ところが、従来の濾過機では、濾過
に先立つて濾葉上にプリコート層を形成するプリ
コート時や、濾過終了後の濾滓排除時等におい
て、固形物粒子が上ネツト7を通過し、サポート
ネツト周辺に洩入介在し、濾滓排除時における濾
過体回転による遠心力によつて固形物粒子が目の
荒いサポートネツト6と支持板5の隙間で濾葉外
周に向けて移動して堆積する。 Filtration in the filter having the above configuration is performed by supplying the liquid to be filtered under pressure, and the filtrate exits from each filter leaf 4 through the hollow part of the hollow central shaft 3. A feature of this filter is that the filter dregs adhering to the filter leaves 4 can be peeled off. That is, after filtration, the undiluted solution is extracted from the main body, and the hollow center shaft 3 to which each filter leaf 4 is attached is rotated by the motor 9, and the centrifugal force is used to shake it out to the outer periphery of the filter leaf, thereby scraping the filter slag that collects at the bottom of the main body. It is scraped out with a plate 16 and discharged. However, in conventional filters, solid particles pass through the upper net 7 during pre-coating to form a pre-coat layer on the filter leaves prior to filtration, and during removal of filter slag after filtration, resulting in solid particles forming around the support net. The solid particles are moved toward the outer periphery of the filter leaf and deposited in the gap between the coarse support net 6 and the support plate 5 due to the centrifugal force caused by the rotation of the filter during filter slag removal.
濾葉内の外周部は通常濾過時をはじめ、濾葉洗
浄の際において液の流速が最も遅くなるところで
あり、濾葉内外周部に堆積した固形物粒子は流れ
ることなく堆積し続け、濾過サイクルを繰り返す
に従つて堆積量を増して行く。 The outer periphery of the filter leaf is where the flow rate of liquid is usually the slowest during filtration and when cleaning the filter leaf, and the solid particles that accumulate on the inner and outer periphery of the filter leaf continue to accumulate without flowing, and the filtration cycle As the process is repeated, the amount of deposit increases.
このようにして堆積した固形物粒子は、濾過体
の回転による遠心力により更に押し付けられ、固
まつて液が通過しなくなり、濾葉の有効濾過面積
を減少させ、濾過能力の低下を来すばかりでな
く、これが上ネツト7を押し上げるようになつ
て、やがては上ネツト7の破損に進行して行く。 The solid particles accumulated in this way are further pressed by the centrifugal force caused by the rotation of the filter body, solidify and prevent the liquid from passing through, reducing the effective filtration area of the filter leaves and causing a decline in filtration performance. Instead, this begins to push up the upper net 7, and the upper net 7 eventually becomes damaged.
この現象は特に高粘度物の濾過又は粘着性固形
物粒子を含んだ液の濾過においてその発生が顕著
に現れるもので、その防止策が必要とされながら
も、従来はこの適切な防止策がなく、適時濾葉を
解体して固形物粒子を手作業で排除しているのが
現状である。 This phenomenon is especially noticeable when filtering highly viscous substances or liquids containing sticky solid particles, and although measures are needed to prevent it, there have been no appropriate preventive measures in the past. Currently, the filter leaves are disassembled at appropriate times and solid particles are manually removed.
(考案の目的)
この考案は、上記濾葉上に付着する濾滓を濾過
体の回転による遠心力で排除するに当たつて、上
ネツトを通過して濾葉内部に洩入介在する固形物
粒子の移動に制限を与え、濾葉外周部への集中的
堆積をなくして自然流出を図り、濾過能力の長期
維持、及び上ネツトの破損を防止する葉状濾過機
を提供しようとするものである。(Purpose of the invention) This invention is designed to eliminate solids that have passed through the upper net and leaked into the inside of the filter leaf when the filter slag adhering to the filter leaf is removed by the centrifugal force generated by the rotation of the filter body. The object is to provide a leaf filter that limits the movement of particles, eliminates concentrated accumulation on the outer periphery of the filter leaf, allows natural outflow, maintains filtration performance over a long period of time, and prevents damage to the upper net. .
(考案の構成)
以下、この考案の実施例を図面について説明す
る。(Structure of the invention) Hereinafter, embodiments of this invention will be described with reference to the drawings.
第3図はこの考案の濾葉の部分破断平面図、第
4図は同縦断面図を示し、濾過機本体及び濾過体
の基本的構成については上述した従来のものと変
わらないため、その説明を省略する。 Figure 3 shows a partially cutaway plan view of the filter leaf of this invention, and Figure 4 shows a longitudinal sectional view of the same.The basic configuration of the filter body and filter body is the same as the conventional one described above, so we will explain it. omitted.
しかして、第3図、第4図において、この考案
の濾葉10は、上ネツト7と支持板5との間に、
上ネツト7を支持する多孔板11と、この多孔板
11と支持板間に隙間12を形成すべく、多数の
サポートワイヤ13を相互近接して散在的に配装
する。 Therefore, in FIGS. 3 and 4, the filter leaf 10 of this invention has between the upper net 7 and the support plate 5,
A perforated plate 11 supporting the upper net 7 and a large number of support wires 13 are disposed in a scattered manner close to each other to form a gap 12 between the perforated plate 11 and the support plate.
このサポートワイヤ13は放射方向に延びる主
部13aと、この主部13aに連続して屈曲部1
3bを形成したもので、放射方向に位置をずらし
て隣接するサポートワイヤ同志間では、その屈曲
部13bが放射方向に見て一部をオーバラツプさ
せる。 This support wire 13 has a main part 13a extending in the radial direction, and a bent part 1 continuous to the main part 13a.
3b, and the bent portions 13b of adjacent support wires shifted in the radial direction partially overlap when viewed in the radial direction.
また、サポートワイヤ13の数は上ネツト7と
多孔板11が濾過時の圧力によつて変形しない程
度とする。 Further, the number of support wires 13 is set to such an extent that the upper net 7 and the porous plate 11 are not deformed by the pressure during filtration.
尚、図中14は濾葉10が取付られる隔筒、1
5は隔筒14に設けた横孔で、濾葉10と中空中
心軸3とを連通させる。また図示例では、サポー
トワイヤ13の屈曲部13bを円弧状とする構成
を示したが、V状、その他多角状の屈曲としても
よい。 In addition, 14 in the figure is a partition cylinder to which the filter leaf 10 is attached, 1
Reference numeral 5 denotes a horizontal hole provided in the partition tube 14, which allows the filter leaf 10 and the hollow central shaft 3 to communicate with each other. Further, in the illustrated example, the bending portion 13b of the support wire 13 has a circular arc shape, but it may be bent in a V shape or other polygonal shapes.
(作用)
この考案は、上記のように構成しているので、
濾過に先立つて濾葉上にプリコート層を形成する
プリコート時や、濾滓排除時に上ネツト7を通過
してくる固形物粒子のほとんどは、多孔板11の
孔を通過して支持板5と多孔板11との隙間12
に洩入し、濾液とともに中心方向へ流れ、中空中
心軸3を通つて下部へ流出し、濾葉内部に介在す
ることがなくなるものである。(Function) This device is configured as described above, so
Most of the solid particles that pass through the upper net 7 during pre-coating to form a pre-coat layer on the filter leaves prior to filtration and during filter dregs removal pass through the holes in the perforated plate 11 and are connected to the support plate 5 and the porous Gap 12 with plate 11
It leaks into the filter, flows toward the center along with the filtrate, flows out through the hollow central shaft 3 to the lower part, and is no longer interposed inside the filter leaf.
ところが、濾滓排除時の濾過体回転において、
上ネツト7を通過し濾葉内部へ洩れ込んだ一部の
固形粒子や、たまたま濾葉内部に残留していた固
形物粒子等は、濾過体回転による遠心力によつて
濾葉10の外周方向へ移動しようとするが、放射
状に配装されたサポートワイヤ13の屈曲部13
bが障害となつてその移動が阻止され、濾葉外周
部までは到達することなく、各サポートワイヤ毎
に付着し残留することになる。 However, when rotating the filter during filter slag removal,
Some of the solid particles that have passed through the upper net 7 and leaked into the filter leaf, and solid particles that happen to remain inside the filter leaf, are moved toward the outer circumference of the filter leaf 10 by the centrifugal force caused by the rotation of the filter body. However, the bent portion 13 of the support wires 13 arranged radially
b acts as an obstacle and prevents its movement, and instead of reaching the outer periphery of the filter leaf, it adheres to each support wire and remains.
そして、この各サポートワイヤ毎に付着し残留
した固形物粒子は濾葉洗浄、あるいはプリコート
時の液流によつて中空中心軸3から外部へ押し流
されるものである。 The remaining solid particles attached to each support wire are swept away from the hollow central shaft 3 by the liquid flow during filter leaf cleaning or precoating.
尚この際、各サポートワイヤ毎に付着し残留し
た固形物粒子は濾葉洗浄時の洗浄液の流速のとれ
る部分に位置しているので、容易に流出させるこ
とができる。 At this time, the solid particles that adhere to and remain on each support wire can be easily flowed out because they are located in a portion where the flow rate of the cleaning liquid during filter leaf cleaning can be maintained.
(考案の効果)
以上の説明から明らかなように、この考案の濾
葉構造によれば、濾葉内部に固形物粒子の残留を
なくし、仮令、濾葉内部に洩れ込んできた固形物
粒子があつても、これは濾滓排除時の濾過体の回
転による遠心力による移動が各サポートワイヤに
よつて阻止され、濾葉洗浄時にはこれを完全に流
出排除することができるものである。(Effects of the invention) As is clear from the above explanation, the filter leaf structure of this invention eliminates the residual solid particles inside the filter leaf, and prevents solid particles that have leaked into the filter leaf. Even if the filter slag is removed, the support wires prevent movement due to the centrifugal force caused by the rotation of the filter body when removing the filter slag, and the slag can be completely flowed out and removed during the filter leaf cleaning.
従つて、従来の濾葉の如く濾過体回転で濾葉外
周部に集中しての固形物粒子の堆積をなくし、濾
葉内部の固形物粒子を通常の作業で自然流出して
濾過能力の長期維持が図られ、上ネツトの破損防
止の効果が期待でき、特に高粘度液等の水溶液で
ありながら放置しておくと固化する物質の濾過に
対して効果が大であり、濾葉の耐用時間を格段に
延長できるものである。 Therefore, unlike conventional filter leaves, the accumulation of solid particles concentrated on the outer periphery of the filter leaf due to rotation of the filter body is eliminated, and the solid particles inside the filter leaf are naturally flowed out during normal operations, resulting in a long-term filtration capacity. It is expected to be effective in preventing damage to the upper net, and is particularly effective in filtering substances that solidify if left undisturbed even though they are aqueous solutions such as high viscosity liquids, and the service life of the filter leaves can be expected to be reduced. can be significantly extended.
第1図は葉状濾過機、第2図は従来の濾葉縦断
面図、第3図はこの考案の濾葉の部分破断平面
図、第4図は同縦断面図である。
1……濾過機本体、2……濾過体、3……中空
中心軸、4……濾葉、5……支持板、6……サポ
ートネツト、7……上ネツト、8……締付け環、
9……モータ、10……濾葉、11……多孔板、
12……隙間、13……サポートワイヤ、14…
…隔筒、15……横孔、16……掻き板。
FIG. 1 is a leaf filter, FIG. 2 is a longitudinal sectional view of a conventional filter leaf, FIG. 3 is a partially cutaway plan view of the filter leaf of this invention, and FIG. 4 is a longitudinal sectional view thereof. DESCRIPTION OF SYMBOLS 1... Filter body, 2... Filter body, 3... Hollow center shaft, 4... Filter leaf, 5... Support plate, 6... Support net, 7... Upper net, 8... Tightening ring,
9...Motor, 10...Filter leaf, 11...Perforated plate,
12...Gap, 13...Support wire, 14...
...Partition tube, 15...Horizontal hole, 16...Scraping board.
Claims (1)
付け、該濾葉を中空中心軸に連通してなる濾過体
を有し、濾葉上に付着した濾滓を濾過体の回転で
遠心力により排除するようにした葉状濾過機にお
いて、前記濾葉を構成する上ネツトと支持板との
間に、上ネツトを支持する多孔板と、この多孔板
と支持板間に放射方向に延びる主部とこの主部に
連続して屈曲部を形成した多数のサポートワイヤ
を相互近接して散在的に配装したことを特徴とす
る葉状濾過機。 A filter body is formed by attaching a plurality of horizontally structured filter leaves to a hollow central shaft and communicating the filter leaves with the hollow central shaft, and centrifugal force is applied to filter slag adhering to the filter leaves by rotation of the filter body. In the leaf-shaped filter, a perforated plate supporting the upper net is provided between the upper net constituting the filter leaf and the support plate, and a main portion extending in the radial direction between the perforated plate and the support plate. A leaf filter characterized in that a large number of support wires each having a continuous bent portion formed in the main portion thereof are arranged in a scattered manner in close proximity to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13085683U JPS6039309U (en) | 1983-08-23 | 1983-08-23 | leaf filter machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13085683U JPS6039309U (en) | 1983-08-23 | 1983-08-23 | leaf filter machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6039309U JPS6039309U (en) | 1985-03-19 |
JPS646887Y2 true JPS646887Y2 (en) | 1989-02-23 |
Family
ID=30296039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13085683U Granted JPS6039309U (en) | 1983-08-23 | 1983-08-23 | leaf filter machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6039309U (en) |
-
1983
- 1983-08-23 JP JP13085683U patent/JPS6039309U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6039309U (en) | 1985-03-19 |
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