JPH0212122B2 - - Google Patents
Info
- Publication number
- JPH0212122B2 JPH0212122B2 JP59134693A JP13469384A JPH0212122B2 JP H0212122 B2 JPH0212122 B2 JP H0212122B2 JP 59134693 A JP59134693 A JP 59134693A JP 13469384 A JP13469384 A JP 13469384A JP H0212122 B2 JPH0212122 B2 JP H0212122B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- water
- compressed
- air
- filter press
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000010802 sludge Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、圧搾用のダイヤフラム付フイルタ
プレスにおけるダイヤフラムの排水方法に関す
る。すなわち、圧搾完了後のダイヤフラム内の高
圧水の効果的な排水方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for draining water from a diaphragm in a filter press with a diaphragm for compression. That is, the present invention relates to an effective method for draining high-pressure water within a diaphragm after completion of squeezing.
従来の圧搾装置付フイルタプレスにおけるダイ
ヤフラム内の圧力水を抜く方法としては、ダイヤ
フラムの下部より自然に排水したのち、上部から
高圧空気を注入し、さらに、真空ポンプで吸着す
るのが一般である。
The conventional method for removing pressurized water from the diaphragm in a filter press with a squeezing device is to drain it naturally from the bottom of the diaphragm, then inject high-pressure air from the top, and then adsorb it with a vacuum pump.
この従来方法は、自然排水に時間を要するのと
残溜水を排出するために給気するのであるが、フ
イルタプレスに用いられているダイヤフラムは扁
平状であるため、給気が全体に行き渉らず、排水
口に短絡して完全に水を排出することができな
い。この状態を第１図および第２図に示す。 This conventional method takes time for natural drainage and requires air supply to discharge residual water, but since the diaphragm used in the filter press is flat, the air supply is distributed throughout the area. Otherwise, the water may not drain completely due to a short circuit to the drain outlet. This state is shown in FIGS. 1 and 2.
フイルタプレスは、バツチ式操作をする機械で
あり、上述の圧搾を完了した圧搾水の排水、ダイ
ヤフラムへの給気は、フイルタプレスの操作目的
である過脱水には全く寄与していない。
The filter press is a machine that operates in batches, and the above-mentioned drainage of the compressed water after the compression and supply of air to the diaphragm do not contribute at all to excessive dehydration, which is the purpose of the operation of the filter press.
すなわち、圧搾水の排水が長ければ長い程、機
械操作効率は低下するわけであり、従来の給気操
作は、排水を速くするために設けられているので
あるが、前述のように短絡等して完全な排水がで
きない実状にある。 In other words, the longer it takes for compressed water to drain, the lower the machine operation efficiency becomes. Conventional air supply operations are designed to speed up drainage, but as mentioned above, short circuits, etc. In reality, complete drainage is not possible.
そこで、この発明は圧搾水を排水するに当り、
この従来問題のあつた自然排水後のダイヤフラム
へ排水のための給気を排止し、ダイヤフラムに圧
力水を注入する前にダイヤフラム内に圧縮空気Ａ
を送入しておき、すなわち、ダイヤフラムに送入
する圧縮空気を内部の水を排出するためではな
く、圧搾前段における汚泥の加圧に使用して、
過脱水に活用するとともに、この送入した空気に
よつて、ダイヤフラム内の圧搾水を完全に排出で
きるようにしたものである。
Therefore, in draining compressed water, this invention
The conventional problem is that the supply air for drainage is discharged to the diaphragm after natural drainage, and compressed air A
In other words, the compressed air sent to the diaphragm is not used to discharge the water inside, but is used to pressurize the sludge in the first stage of compression.
In addition to being used for excessive dehydration, this introduced air allows the compressed water inside the diaphragm to be completely discharged.
以下、添付の図面に随つてこの発明を詳述すれ
ば、図に示すように、多数並列した板１…間に
形成された室内に汚泥等を圧入脱水した後、そ
の脱水ケーキを室の一側に設けたダイヤフラム
で、圧搾脱水するようにしたフイルタプレスにお
いて、上記ダイヤフラムでケーキを圧搾するに当
り、先ず、ダイヤフラム内に３〜５Kg/cm2の圧縮
空気Ａを圧力水の注入口２から注入し、次いで、
圧搾水を注入してケーキを圧搾したのち、圧搾水
を排水するようにしたものである。 Hereinafter, the present invention will be described in detail with reference to the attached drawings.As shown in the figure, after sludge, etc. is pressurized and dehydrated into a chamber formed between a large number of parallel plates 1, the dehydrated cake is placed in one chamber. In a filter press that compresses and dehydrates the cake using a diaphragm installed on the side, first, compressed air A of 3 to 5 kg/cm 2 is injected into the diaphragm from the pressure water inlet 2 before squeezing the cake using the diaphragm. inject, then
After squeezing the cake by injecting press water, the press water is drained.
上述のように、圧搾水の注入前にダイヤフラム
に送入された圧縮空気は、ダイヤフラムを膨張さ
せ、その側方の過室（図示省略）に圧入された
汚泥を加圧して、これを脱水する。次いで、ダイ
ヤフラムに注入される圧搾水（通常は10Kg/cm2〜
20Kg/cm2））によつて、汚泥はさらに圧搾され、ケ
ーキ状に脱水される。このとき、先に注入した圧
縮空気は、圧搾水によつて圧搾されて、ダイヤフ
ラム内に存在する。
As mentioned above, the compressed air sent to the diaphragm before the injection of compressed water expands the diaphragm, pressurizes the sludge that has been pressurized into the overchamber (not shown) on the side of the diaphragm, and dewaters it. . Then, compressed water (usually 10Kg/cm 2 ~
The sludge is further compressed and dehydrated into a cake by using 20Kg/cm 2 )). At this time, the previously injected compressed air is compressed by the compressed water and exists within the diaphragm.
以上のようにして圧搾終了後、圧搾水を排出す
る場合には、圧搾水の排水口２を開くことで、圧
力水が前述圧縮された空気Ａによつて押し出され
る。この様子を第２図イおよびロに示す従来の方
法によるものに比較すると、第３図イおよびロに
示すこの発明に係る方法では、図に示すようにダ
イヤフラムの上部に、全域に渉つて閉じ込められ
た圧縮空気が、全面的に圧搾水を押し下げるの
で、圧搾水を残すことなく排出することができ、
然も、短時間で排出が可能である。尚、上記の説
明は、この発明に係る方法の要部のみを説明した
が、実際のフイルタプレスにおける過脱水工程
は、次のような工程で行われる。 When the compressed water is discharged after the completion of the compression as described above, the pressurized water is pushed out by the compressed air A by opening the drain port 2 of the compressed water. Comparing this situation with the conventional method shown in FIGS. 2A and 2B, in the method according to the present invention shown in FIGS. The compressed air pushes down the compressed water over the entire surface, so it can be discharged without leaving any compressed water behind.
However, it can be discharged in a short time. Although the above explanation has explained only the main parts of the method according to the present invention, the actual excessive dehydration step in a filter press is performed in the following steps.
従来方法 この発明に係る方法
(1) 室に汚泥圧入脱水 (1) 同 左
(2) ダイヤフラムにより圧搾（10〜20Kg/cm2）
(2) ダイヤフラムに給気（３〜５Kg/cm2）
(3) 供給路の汚泥を清掃
(3) ダイヤフラムにより圧搾（10〜20Kg/cm2）
(4) ダイヤフラム内の圧力水を自然排水
(4) 供給路の汚泥を清掃
(5) ダイヤフラム内に排水のため給気(5) ダイヤ
フラム内の圧力水を排水（封入空気により強制
排水）
(6) 真空吸着（ダイヤフラム復帰）(6) 同 左
〔効果〕
以上の説明で明らかなように、この発明の最大
の特徴は、フイルタプレスにおいて、ダイヤフラ
ム内の圧力水を排出して、次回の圧搾に備えるに
当つて、従来行つていたダイヤフラム内への給気
工程を廃止して、これに代えて、ダイヤフラム内
に封入した圧縮空気Ａを用いて圧力水を強制的に
排出するようにした点にあり、この圧縮空気Ａ
は、従来のダイヤフラム内に吹き込まれる圧力水
排出のための空気と異なり、それ自体がダイヤフ
ラムを膨張させて、過脱水に寄与するととも
に、圧力水を排出するに当つては、ダイヤフラム
内の圧搾水全体に対して均一に作用し、これを余
さず排出することができるものであつて、過に
寄与しない雑時間を短縮し、大巾に脱水効率を高
め得るものである。 Conventional method Method according to this invention (1) Injecting sludge into a chamber for dewatering (1) Same as on the left (2) Squeezing with a diaphragm (10 to 20 Kg/cm 2 )
(2) Supply air to the diaphragm (3-5Kg/cm 2 ) (3) Clean the sludge in the supply channel
(3) Squeezing by diaphragm (10-20Kg/cm 2 ) (4) Naturally draining the pressure water inside the diaphragm
(4) Clean the sludge in the supply channel (5) Supply air to the diaphragm for drainage (5) Drain the pressure water in the diaphragm (forced drainage using sealed air) (6) Vacuum adsorption (diaphragm return) (6) Same as above Left [Effect] As is clear from the above explanation, the greatest feature of this invention is that in a filter press, the pressure water in the diaphragm is discharged in preparation for the next press, and the diaphragm The process of supplying air into the diaphragm has been abolished, and instead, compressed air A sealed in the diaphragm is used to forcibly discharge the pressurized water, and this compressed air A
Unlike the conventional air that is blown into the diaphragm to discharge pressurized water, it expands the diaphragm itself and contributes to excessive dehydration. It acts uniformly on the entire body and can drain all of it, reducing unnecessary time and greatly increasing dewatering efficiency.
尚、ダイヤフラムに、初期に封入された空気は
逃がすことがなく、圧搾水の排水に用いるので、
圧搾水による圧搾中に、次回の圧搾初期に用いる
圧搾空気Ａを貯留することができ、このため、圧
縮機の容量が小さくてよく、この点でも、装置を
安価にできる利点がある。 In addition, the air initially sealed in the diaphragm does not escape and is used to drain the compressed water, so
During compression using compressed water, compressed air A to be used at the beginning of the next compression can be stored, so that the capacity of the compressor may be small, which also has the advantage that the device can be made inexpensive.
第１図は、この発明に係るフイルタプレスの概
略の側面図、第２図イおよびロは、従来のダイヤ
フラムの圧搾水の排出方法を解説的に示す正面
図、第３図イおよびロは、この発明に係る同正面
図である。
符号説明 １…板、２…注入口、Ａ…圧縮空
気。
FIG. 1 is a schematic side view of a filter press according to the present invention, FIGS. 2A and 2B are front views illustrating a conventional method for discharging squeezed water from a diaphragm, and FIGS. 3A and 3B are It is the same front view based on this invention. Explanation of symbols 1...Plate, 2...Inlet, A...Compressed air.
Claims (1)
汚泥等を圧入脱水したのち、その脱水ケーキを
室の一側に設けたダイヤフラムで、圧搾脱水する
ようにしたフイルタプレスにおいて、上記、ダイ
ヤフラムでケーキを圧搾するに当り、先ず、ダイ
ヤフラム内に３〜５Kg/cm2の圧縮空気Ａを、圧搾
水の注入口２から注入し、次いで、圧搾水を注入
してケーキを圧搾したのち、圧搾水を排水するこ
とを特徴とするフイルタプレスにおけるダイヤフ
ラムの排水方法。1. In a filter press that presses sludge, etc. into a chamber formed between a large number of parallel plates 1 and dehydrates it, the dehydrated cake is compressed and dehydrated using a diaphragm installed on one side of the chamber. To squeeze the cake, first, compressed air A of 3 to 5 kg/cm 2 is injected into the diaphragm from the compressed water inlet 2, then the compressed water is injected to compress the cake, and then the compressed water is poured into the diaphragm. A method for draining a diaphragm in a filter press characterized by draining water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59134693A JPS6115711A (en) | 1984-06-29 | 1984-06-29 | Water draining method of diaphragm in filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59134693A JPS6115711A (en) | 1984-06-29 | 1984-06-29 | Water draining method of diaphragm in filter press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6115711A JPS6115711A (en) | 1986-01-23 |
| JPH0212122B2 true JPH0212122B2 (en) | 1990-03-19 |
Family
ID=15134379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59134693A Granted JPS6115711A (en) | 1984-06-29 | 1984-06-29 | Water draining method of diaphragm in filter press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6115711A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55152052A (en) * | 1979-05-15 | 1980-11-27 | Hasegawa Kagaku Kogyo Kk | Frp reinforced thin board and its preparation |
| JPH0634882B2 (en) * | 1989-02-04 | 1994-05-11 | 株式会社伊藤製作所 | ▲ Ro ▼ Plate type ▲ Ro ▼ Fluid supply control device in compression process of press machine |
| DE4137255A1 (en) * | 1991-11-13 | 1993-05-19 | Ziemann Gmbh A | Mash chambers - have flow direction changes through the chambers to prevent build=up on the filters |
| JP4911369B2 (en) * | 2008-07-25 | 2012-04-04 | 株式会社石垣 | Filter press with built-in large capacity diaphragm |
| JP7022280B2 (en) * | 2018-09-28 | 2022-02-18 | 株式会社石垣 | How to operate the filter press |
| JP7022279B2 (en) * | 2018-09-28 | 2022-02-18 | 株式会社石垣 | How to operate the filter press and the filter press with integrated pressure tank |
-
1984
- 1984-06-29 JP JP59134693A patent/JPS6115711A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6115711A (en) | 1986-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |