GB2016942A - A method of and an apparatus for expressing liquid from clarifying sludges - Google Patents
A method of and an apparatus for expressing liquid from clarifying sludgesInfo
- Publication number
- GB2016942A GB2016942A GB7843784A GB7843784A GB2016942A GB 2016942 A GB2016942 A GB 2016942A GB 7843784 A GB7843784 A GB 7843784A GB 7843784 A GB7843784 A GB 7843784A GB 2016942 A GB2016942 A GB 2016942A
- Authority
- GB
- United Kingdom
- Prior art keywords
- charging
- value
- pressure
- sludge
- chambers
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/003—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/003—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration
- B01D25/007—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/176—Filter presses, i.e. of the plate or plate and frame type attaching the filter element to the filter press plates, e.g. around the central feed hole in the plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/19—Clamping means for closing the filter press, e.g. hydraulic jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/30—Feeding devices ; Discharge devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/20—Pressure-related systems for filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
In a filter press (1) having communicating pressing chambers with a stack of plates (3, 4, 6) squeezable between a movable platen (9) and a fixed end plate (7), an initial sludge charging operation is followed by at least ten pressing operations in each of which there occurs further charging of the pressing chambers with smaller sludge amounts, the charging being initiated when the pressure in the chambers has fallen below a given lower value as a result of filtrate removal and the charging being stopped when the pressure has risen to a given upper value, this upper value being increased stepwise during the pressing operations to a maximum value. The limit value of the pressure in the initial charging operation is not more than 25% of the maximum upper value. The operation may be automatically controlled by a relay circuit controller 126. Additives, e.g. lime, may be mixed with the sludge by an arrangement 58, 121. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772750028 DE2750028A1 (en) | 1977-11-09 | 1977-11-09 | METHOD FOR EXPRESSION OF CLAIMS AND DEVICE FOR CARRYING OUT THE METHOD |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2016942A true GB2016942A (en) | 1979-10-03 |
GB2016942B GB2016942B (en) | 1982-06-03 |
Family
ID=6023308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7843784A Expired GB2016942B (en) | 1977-11-09 | 1978-11-09 | Method of and an apparatus for expressing liquid from clarifying sludges |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT361868B (en) |
CH (1) | CH634538A5 (en) |
DE (1) | DE2750028A1 (en) |
GB (1) | GB2016942B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2134403A (en) * | 1983-02-02 | 1984-08-15 | Edwards & Jones | Filtering |
FR2983083A1 (en) * | 2011-11-25 | 2013-05-31 | Faure Equipements | Method for cleaning filtering plate of filter press, involves arranging filter fabric in filter press, equipping filter press with washing unit, and washing filter fabric according to measured parameter related to clogging of fabric |
RU2531747C2 (en) * | 2012-11-21 | 2014-10-27 | Виктор Анатольевич Черников | Method of automatic control over filter press and device to this end |
CN104888502A (en) * | 2015-05-15 | 2015-09-09 | 安徽省通源环境节能有限公司 | Segmental sludge high dryness pressing method |
CN106517720A (en) * | 2016-11-22 | 2017-03-22 | 哈尔滨工业大学 | Sewage sludge multi-stage coupling plate-and-frame filter-pressing dewatering device based on multi-point sludge feeding and use method of device |
CN112403047A (en) * | 2020-10-10 | 2021-02-26 | 安徽双发华德环保科技有限公司 | Quick feed arrangement of multi-functional pressure filter |
CN112452037A (en) * | 2020-11-13 | 2021-03-09 | 王琳 | Belt filter press for sludge dewatering with backwash function |
CN114917633A (en) * | 2022-07-07 | 2022-08-19 | 景津装备股份有限公司 | Open-flow liquid collection and single-valve control type clear-turbid double-pipe flow dividing device and open-flow filter press |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2940045A1 (en) * | 1979-10-03 | 1981-05-07 | Hans 7534 Birkenfeld Kübler | METHOD FOR PRESSING CLEANER SLUDGE BY MEANS OF A CHAMBER FILTER PRESS AND DEVICE FOR CARRYING OUT THE METHOD |
DE3165144D1 (en) * | 1981-02-05 | 1984-09-06 | Moos Simon Maskin | Method and apparatus for the separation of liquids from heterogeneous liquid-solid material mixtures, e.g. methods for the dehydration or thickening of communal or industrial sludges |
DE3346834C1 (en) * | 1983-12-23 | 1985-05-15 | Allied Colloids Manufacturing GmbH, 2000 Hamburg | Process and plant for dewatering sludge |
AT384010B (en) * | 1984-05-28 | 1987-09-25 | Voest Alpine Ag | METHOD FOR DRAINING SLUDGE AND / OR ORGANIC SUBSTANCES |
DE3636799A1 (en) * | 1986-10-29 | 1988-05-05 | Rittershaus & Blecher Gmbh | METHOD FOR REGULATING THE FILTER PLATE SYSTEM PRESSURE IN FILTER PRESSES AND DEVICE FOR CARRYING OUT THE METHOD |
DE3932872A1 (en) * | 1989-10-02 | 1991-04-11 | Rittershaus & Blecher Gmbh | METHOD AND DEVICE FOR MIXING A FLOCKING SOLUTION IN A TURBLE TO BE FILTRATED |
FI103108B1 (en) * | 1994-08-29 | 1999-04-30 | Valmet Flootek Oy | Process for separating water from sludge |
CN105561645B (en) * | 2016-01-25 | 2018-08-17 | 佛山市金凯地过滤设备有限公司 | A kind of dentation formula pressurize filter-pressing method |
CN114735920B (en) * | 2022-04-20 | 2023-05-16 | 定边县冠博环保科技有限公司 | Horizontal stirring tempering cleaning method for oily sludge |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2244917C3 (en) * | 1972-09-13 | 1981-06-19 | Gebrüder Netzsch, Maschinenfabrik GmbH & Co, 8672 Selb | Method and device for charging a filter device |
-
1977
- 1977-11-09 DE DE19772750028 patent/DE2750028A1/en active Granted
-
1978
- 1978-11-03 CH CH1134378A patent/CH634538A5/en not_active IP Right Cessation
- 1978-11-08 AT AT798078A patent/AT361868B/en not_active IP Right Cessation
- 1978-11-09 GB GB7843784A patent/GB2016942B/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2134403A (en) * | 1983-02-02 | 1984-08-15 | Edwards & Jones | Filtering |
FR2983083A1 (en) * | 2011-11-25 | 2013-05-31 | Faure Equipements | Method for cleaning filtering plate of filter press, involves arranging filter fabric in filter press, equipping filter press with washing unit, and washing filter fabric according to measured parameter related to clogging of fabric |
RU2531747C2 (en) * | 2012-11-21 | 2014-10-27 | Виктор Анатольевич Черников | Method of automatic control over filter press and device to this end |
CN104888502A (en) * | 2015-05-15 | 2015-09-09 | 安徽省通源环境节能有限公司 | Segmental sludge high dryness pressing method |
CN106517720A (en) * | 2016-11-22 | 2017-03-22 | 哈尔滨工业大学 | Sewage sludge multi-stage coupling plate-and-frame filter-pressing dewatering device based on multi-point sludge feeding and use method of device |
CN106517720B (en) * | 2016-11-22 | 2019-04-26 | 哈尔滨工业大学 | A kind of sewage sludge multistage based on multiple spot into mud couples sheet frame filter-press dehydration device and its application method |
CN112403047A (en) * | 2020-10-10 | 2021-02-26 | 安徽双发华德环保科技有限公司 | Quick feed arrangement of multi-functional pressure filter |
CN112452037A (en) * | 2020-11-13 | 2021-03-09 | 王琳 | Belt filter press for sludge dewatering with backwash function |
CN114917633A (en) * | 2022-07-07 | 2022-08-19 | 景津装备股份有限公司 | Open-flow liquid collection and single-valve control type clear-turbid double-pipe flow dividing device and open-flow filter press |
Also Published As
Publication number | Publication date |
---|---|
GB2016942B (en) | 1982-06-03 |
ATA798078A (en) | 1980-08-15 |
DE2750028A1 (en) | 1979-05-10 |
CH634538A5 (en) | 1983-02-15 |
DE2750028C2 (en) | 1989-06-29 |
AT361868B (en) | 1981-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PG | Patent granted |