ES2057690T3 - PROCEDURE FOR PRESSURE DEHYDRATION OF AQUEOUS PASTA. - Google Patents
PROCEDURE FOR PRESSURE DEHYDRATION OF AQUEOUS PASTA.Info
- Publication number
- ES2057690T3 ES2057690T3 ES91115039T ES91115039T ES2057690T3 ES 2057690 T3 ES2057690 T3 ES 2057690T3 ES 91115039 T ES91115039 T ES 91115039T ES 91115039 T ES91115039 T ES 91115039T ES 2057690 T3 ES2057690 T3 ES 2057690T3
- Authority
- ES
- Spain
- Prior art keywords
- pressure
- piston
- filtering
- drainage
- sludge
- 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
- 238000000034 method Methods 0.000 title abstract 5
- 230000018044 dehydration Effects 0.000 title 1
- 238000006297 dehydration reaction Methods 0.000 title 1
- 235000015927 pasta Nutrition 0.000 title 1
- 238000001914 filtration Methods 0.000 abstract 4
- 239000010802 sludge Substances 0.000 abstract 4
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
- B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
In the case of the known discontinuous drainage processes in which the operating pressure has to be reduced to the surrounding pressure between the removal of the drained sludge cake and the refilling of the drainage apparatus, the filtering action can quickly drop off since fresh raw sludge reaches the drainage chambers only by passing already used filtering surfaces and pushing along in front of it a portion of already predrained sludge cake. The novel process is intended to permit a continuous operation with uniform pressure level and a constant, high filtering capacity while at the same time reducing the possibility of faults arising to a minimum. This is achieved in that the fresh raw sludge (21) is fed at constant pressure in the opposite direction in each case to the direction of movement of the piston (8), in particular in the immediate vicinity of the piston, to the filtering surface shortly after the latter has been swept over by the piston and thereby cleaned. The process and the apparatus for carrying out the process thus make it possible for aqueous sludges to be drained continuously by means of pressure. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4032145A DE4032145C1 (en) | 1990-10-10 | 1990-10-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2057690T3 true ES2057690T3 (en) | 1994-10-16 |
Family
ID=6416009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES91115039T Expired - Lifetime ES2057690T3 (en) | 1990-10-10 | 1991-09-06 | PROCEDURE FOR PRESSURE DEHYDRATION OF AQUEOUS PASTA. |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0480176B1 (en) |
| AT (1) | ATE110024T1 (en) |
| DE (2) | DE4032145C1 (en) |
| DK (1) | DK0480176T3 (en) |
| ES (1) | ES2057690T3 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223503A1 (en) * | 1992-07-17 | 1994-01-20 | Mueller Umwelttechnik | Appts. for disposal of slurries contg. oil or other grease - comprises slurry press whose filtrate is segregated into oil, water and oil slurry phases |
| JPH0691397A (en) * | 1992-09-11 | 1994-04-05 | Nagaoka:Kk | Pressing type dehydration device for sludge treatment and method for treating sludge |
| JP3359409B2 (en) * | 1994-01-12 | 2002-12-24 | 株式会社ナガオカ | Pressurized dehydrator for sludge treatment and sludge treatment method |
| ITRM980190A1 (en) * | 1998-03-25 | 1998-06-25 | Gioia Antonio La | CAGE CONCRETE DRYER |
| DE19947044B9 (en) * | 1999-09-30 | 2007-09-13 | Osram Opto Semiconductors Gmbh | Surface-mountable optoelectronic component with reflector and method for producing the same |
| DE102009008904A1 (en) * | 2009-02-13 | 2010-09-02 | Gosatec Gmbh | Apparatus and method for liquid separation |
| AT508024B1 (en) * | 2009-06-18 | 2010-10-15 | Celtec Gmbh | DEVICE FOR REMOVING GREEN SOLIDS |
| CN117398745A (en) * | 2023-07-18 | 2024-01-16 | 水利部交通运输部国家能源局南京水利科学研究院 | Low-concentration slurry dehydration device and method based on expansion pipe built-in suction filtration device |
| CN119977274B (en) * | 2025-04-16 | 2025-07-11 | 浙江浙达水业有限公司 | A sludge discharge device for sewage treatment with backwashing and anti-blocking structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE249275C (en) * | ||||
| DE198415C (en) * | 1905-12-26 | |||
| DE263722C (en) * | 1912-04-06 | 1913-09-09 | Roth Philipp | |
| DE1035101B (en) * | 1955-05-25 | 1958-07-31 | Dr Hans Heymann | Filter press |
| DE3641180A1 (en) * | 1986-12-02 | 1988-06-16 | Mueller Umwelttechnik | DEVICE FOR PRESSURE DRAINAGE OF AQUEOUS SLUDGE |
| DK158149C (en) * | 1987-03-31 | 1990-08-27 | Optimal Miljoeteknik Aps | SLAM DRAINAGE DEVICE |
-
1990
- 1990-10-10 DE DE4032145A patent/DE4032145C1/de not_active Expired - Fee Related
-
1991
- 1991-09-06 DK DK91115039.9T patent/DK0480176T3/en active
- 1991-09-06 DE DE59102559T patent/DE59102559D1/en not_active Expired - Fee Related
- 1991-09-06 AT AT91115039T patent/ATE110024T1/en not_active IP Right Cessation
- 1991-09-06 ES ES91115039T patent/ES2057690T3/en not_active Expired - Lifetime
- 1991-09-06 EP EP91115039A patent/EP0480176B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DK0480176T3 (en) | 1994-12-05 |
| EP0480176B1 (en) | 1994-08-17 |
| EP0480176A1 (en) | 1992-04-15 |
| DE4032145C1 (en) | 1992-01-16 |
| DE59102559D1 (en) | 1994-09-22 |
| ATE110024T1 (en) | 1994-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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