JPS6354906A - Method for operating filter press - Google Patents
Method for operating filter pressInfo
- Publication number
- JPS6354906A JPS6354906A JP61200686A JP20068686A JPS6354906A JP S6354906 A JPS6354906 A JP S6354906A JP 61200686 A JP61200686 A JP 61200686A JP 20068686 A JP20068686 A JP 20068686A JP S6354906 A JPS6354906 A JP S6354906A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- filter
- valve
- feed port
- filter chamber
- 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
- 238000000034 method Methods 0.000 title claims abstract description 5
- 239000010802 sludge Substances 0.000 claims abstract description 55
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract description 13
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000000706 filtrate Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、フィルタープレスの運転方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a method of operating a filter press.
フィルタープレスは、一般的に、複数枚の濾板を接離自
在に配列して各濾板間に濾室を形成すると共に、各濾板
相互間に一対の濾布を挾み、各濾板に給泥口を連通して
設け、この給泥口から濾板相互間のＰ室内へ汚泥を圧入
して濾過するようになっている。In general, a filter press has a plurality of filter plates arranged in a manner that they can be freely moved toward and away from each other to form a filter chamber between each filter plate, and a pair of filter cloths is sandwiched between each filter plate. A sludge supply port is provided in communication with the sludge, and sludge is forced into the P chamber between the filter plates through the sludge supply port and filtered.
ところで、各濾板に形成された給泥口には、汚泥内の夾
雑物や各濾室内の濾布のたるみあるいは皺などの原因に
よって濾過工程中に詰まりが発生することがある。この
ように給泥口に詰まりが発生すると、給泥口が狭くなり
、濾室内に供給される汚泥量が少なくなると共に、汚泥
の入りやすい濾室、入りにくい濾室の差ができることに
より濾室間の濾過圧力に差ができ、この濾過差圧によっ
て濾板が破損するおそれが・ある。By the way, the sludge supply ports formed in each filter plate may become clogged during the filtration process due to foreign matter in the sludge or sagging or wrinkled filter cloth in each filter chamber. When the sludge supply port becomes clogged in this way, the sludge supply port becomes narrower, reducing the amount of sludge supplied into the filter chamber, and creating a difference between the filter chambers where sludge easily enters and the filter chambers where sludge does not enter. There will be a difference in the filtration pressure between the two, and there is a risk that the filter plate will be damaged due to this filtration pressure difference.
そこで、この発明は、濾過工程中に、給泥口の詰まりを
清掃して各濾室内に供給される汚泥量を均一化し、濾室
間の濾過差圧をなくそうとするものである。Therefore, the present invention attempts to equalize the amount of sludge supplied into each filter chamber by cleaning the clogged sludge feed port during the filtration process, and eliminate the filtration pressure difference between the filter chambers.
上記の問題点を解決するために、この発明は、汚泥の給
泥を断続的に行ない、給泥停止中に、給泥口へ圧縮空気
を吹き入れるようにしたものである。In order to solve the above-mentioned problems, the present invention supplies sludge intermittently and blows compressed air into the sludge supply port while the sludge supply is stopped.
このように、濾過工程中に給泥を一旦停止して、給泥口
へ圧縮空気を吹き入れると、−過内圧が下がると同時に
空気の圧力により濾室内の詰まりが除去される。In this way, when the slurry supply is temporarily stopped during the filtration process and compressed air is blown into the slurry supply port, the internal pressure is reduced and at the same time the clog in the filter chamber is removed by the pressure of the air.
以下、この発明の実施例を添付図面に基づいて説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
フィルタープレスは、第１図に示すような構造になって
いる。The filter press has a structure as shown in FIG.
即ち、左右一対のフレーム１，２に、上部フレーム３を
架は渡し、この上部フレーム３に複数枚の濾板４を互い
に接離自在に支持されている。この濾板４相互間には、
炉室５が形成され、一対の炉布６が挾まれている。各濾
板４には、給泥ロアが連通して設けられている。この給
泥ロアの一端には給泥弁８と汚泥ドレン弁９が設けられ
、給泥弁８には、汚泥打込みポンプ１０が連結されてい
る。また、給泥ロアの他端はブロー用弁１１を介して圧
縮空気源（又はタンク）１２が連結されている。上記各
濾板４は油圧シリンダ１３によって締込板１４を介して
締付けられるようになっている。That is, an upper frame 3 is placed between a pair of left and right frames 1 and 2, and a plurality of filter plates 4 are supported on this upper frame 3 so as to be able to move toward and away from each other. Between these filter plates 4,
A furnace chamber 5 is formed, and a pair of furnace cloths 6 are sandwiched therebetween. Each filter plate 4 is provided with a slurry supply lower in communication with it. A sludge supply valve 8 and a sludge drain valve 9 are provided at one end of this sludge supply lower, and a sludge charging pump 10 is connected to the sludge supply valve 8. Further, the other end of the mud supply lower is connected to a compressed air source (or tank) 12 via a blow valve 11 . Each filter plate 4 is tightened by a hydraulic cylinder 13 via a tightening plate 14.
濾過工程では、上記油圧シリンダ１３によって各濾板４
を締付け、汚泥ドレン弁９及びブロー用弁１１を閉じ、
給泥弁８を開いて汚泥打込みポンプ１０によって汚泥を
給泥ロアから各濾室５内へ圧入する。炉液１５は集水溝
１６から排出される。In the filtration process, each filter plate 4 is
, close the sludge drain valve 9 and blow valve 11,
The sludge supply valve 8 is opened and the sludge is forced into each filter chamber 5 from the sludge supply lower by the sludge injection pump 10. Furnace fluid 15 is discharged from water collection groove 16 .
この発明では、上記濾過工程の給泥を断続的に行ない、
給泥停止中に、給泥弁８を閉じ、汚泥ドレン弁９及びブ
ロー用弁１１を開いてブロー用弁１１を介して圧縮空気
源（又はタンク）１２から給泥ロア内に空気を吹き込む
ようにする。これにより、各濾室５内の濾過圧力は、第
２図に示すように、−時的に下がるので、各炉室５の給
泥ロアに詰まりがあっても、この詰まりは吹き込まれた
空気によって砕かれて排出され、給泥ロアの詰まりが除
去される。上記給泥ロアへの空気の吹き入れは、一定時
間（△【）ごとに行なっても、また、濾室５内の圧力を
設定し、その圧力に達したときに行なうようにしてもよ
い。In this invention, the sludge supply in the filtration process is performed intermittently,
While the sludge supply is stopped, the sludge supply valve 8 is closed, and the sludge drain valve 9 and the blow valve 11 are opened to blow air into the sludge supply lower from the compressed air source (or tank) 12 via the blow valve 11. Make it. As a result, the filtration pressure in each filtration chamber 5 decreases over time as shown in FIG. The slurry is crushed and discharged, and the clog in the mud supply lower is removed. The blowing of air into the mud supply lower may be carried out at fixed time intervals (△[), or the pressure in the filter chamber 5 may be set and the blowing may be carried out when the pressure reaches the set pressure.
この発明によれば、濾過工程中に、給泥口が清掃され、
給泥口の詰まりが除去されるので、各濾室内には汚泥が
均一に供給される。このため、各炉室間に差圧が発生せ
ず、濾板の破損を防止できると共に、各濾室内に汚泥が
十分に供給されるので、処理量が増大するという効果が
ある。According to this invention, during the filtration process, the slurry supply port is cleaned,
Since the sludge supply port is unclogged, sludge is uniformly supplied into each filter chamber. Therefore, no differential pressure is generated between the furnace chambers, and damage to the filter plates can be prevented, and since sludge is sufficiently supplied into each filter chamber, the throughput can be increased.
第１図はフィルタープレスの一実施例を示す概略図、第
２図はこの発明によってフィルタープレスを運転した場
合における濾過圧力の変化を示すグラフである。
４・・・濾板、５・・・炉室、６・・・炉布、７・・・
給泥口。
特許出願人 久保田鉄工株式会社
同代理人 鎌 １）文 ニFIG. 1 is a schematic diagram showing an embodiment of a filter press, and FIG. 2 is a graph showing changes in filtration pressure when the filter press is operated according to the present invention. 4... Filter plate, 5... Furnace chamber, 6... Furnace cloth, 7...
Mud supply mouth. Patent applicant: Kubota Iron Works Co., Ltd. Agent: Kama 1) Text d
Claims (1)
成すると共に、各濾板相互間に一対の濾布を挾み、各濾
板に給泥口を連通して設け、この給泥口から上記各濾室
内へ汚泥を圧入して濾過するフィルタープレスの運転方
法において、上記汚泥の給泥を断続的に行ない、給泥停
止中に、上記給泥口へ圧縮空気を吹き入れるようにした
ことを特徴とするフィルタープレスの運転方法。A plurality of filter plates are arranged in a manner that they can be freely approached and separated to form a filter chamber between each filter plate, a pair of filter cloths are sandwiched between each filter plate, and a slurry supply port is communicated with each filter plate. In a method of operating a filter press in which sludge is pressurized into each of the filter chambers through this sludge supply port and filtered, the sludge is intermittently supplied, and when the sludge supply is stopped, compressed air is supplied to the sludge supply port. A method of operating a filter press characterized by blowing in the air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61200686A JPS6354906A (en) | 1986-08-26 | 1986-08-26 | Method for operating filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61200686A JPS6354906A (en) | 1986-08-26 | 1986-08-26 | Method for operating filter press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6354906A true JPS6354906A (en) | 1988-03-09 |
| JPH0224566B2 JPH0224566B2 (en) | 1990-05-30 |
Family
ID=16428563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61200686A Granted JPS6354906A (en) | 1986-08-26 | 1986-08-26 | Method for operating filter press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6354906A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801083A (en) * | 2015-05-04 | 2015-07-29 | 景津环保股份有限公司 | Filter cake blowing apparatus of filter press |
| CN105536309A (en) * | 2015-12-31 | 2016-05-04 | 重庆市吉德环保工程有限公司 | Kitchen solid-liquid separating device |
-
1986
- 1986-08-26 JP JP61200686A patent/JPS6354906A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801083A (en) * | 2015-05-04 | 2015-07-29 | 景津环保股份有限公司 | Filter cake blowing apparatus of filter press |
| CN105536309A (en) * | 2015-12-31 | 2016-05-04 | 重庆市吉德环保工程有限公司 | Kitchen solid-liquid separating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0224566B2 (en) | 1990-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |