EP3377295A1 - Procede de decolmatage pour extrudeuse - Google Patents
Procede de decolmatage pour extrudeuseInfo
- Publication number
- EP3377295A1 EP3377295A1 EP16852876.8A EP16852876A EP3377295A1 EP 3377295 A1 EP3377295 A1 EP 3377295A1 EP 16852876 A EP16852876 A EP 16852876A EP 3377295 A1 EP3377295 A1 EP 3377295A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spacers
- openings
- stack
- thickness
- elements
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 125000006850 spacer group Chemical group 0.000 claims abstract description 24
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000000280 densification Methods 0.000 claims abstract description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
- B01D29/356—Self-supporting filtering elements arranged for outward flow filtration open-ended, the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/46—Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0082—Dust eliminating means; Mould or press ram cleaning means
-
- 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
- B30B9/26—Permeable casings or strainers
-
- 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
- B30B9/26—Permeable casings or strainers
- B30B9/267—Strainer bars; Spacers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Definitions
- the subject of the present invention is, as a new industrial product, an original unclogging process for the open-ended sleeves of screw extruders, which are intended for the filtration of the liquid and / or gaseous fractions contained in a mixture of these products and between -other in sludge.
- extruders of screw extruders are already known, which consist of a stack of elements or sections of sleeves and which are most often simple washers spaced apart by spacers which themselves are also washers but of smaller dimensions. .
- the distance thus created between said washers is perforations through which the finest fractions from which the water escaping realizing the densification of said mixtures and sludge.
- the present invention aims to overcome these drawbacks and relates to a perforated extruder barrel screw having means for enlarging said openings during the cycles of
- Fig. 1 is a general view of the present process operating during an extrusion cycle and, said sleeve and said screw are shown in section.
- Fig. 2 is a general view of the present process operating during a declogging cycle and said sleeve and said screw are shown in section.
- Fig. 3 is the section of a sheath during a declogging cycle.
- Fig. 4 is the section of a sheath during a declogging cycle with holding columns.
- Fig. 5 is the section of a sleeve during an extrusion cycle.
- ig. 6 is the section of a sleeve during an extrusion cycle with holding columns.
- ig. 7 is a section of a sheath element in which are cut-outs for the accommodation of spacers.
- ig. 8 is an identical sectional sectional view of FIG. 7 but • etoises in place.
- ig. 9 is a section showing a spacer between two nests during decoloration.
- Fig. 10 and 11 show the parts of Fig.9 but during extrusion.
- the sludge to be densified (1) is fed into a hopper (2) in which a first feed screw (3) is disposed.
- t sheath (6) is constituted by a stack of elements (13) and itretoises elastic (14) and is traversed by several columns for alignment of these parts and this set is nmur by two bases (10) and (16) each arranged at one emitted from said stack.
- One of the bases (10) is an extrusion nozzle.
- a jack (17) presses on said base and at the same time on said stack, thus crushing said elastic webs and reducing the thickness of said openings to their filtering members.
- the degree of crushing of said spacers reinforces the thickness of said openings (7)
- said cylinder (17) releases its pressure on said base (10) and at the same time the pressure on said stack, thus allowing said elastic spacers, to resume their original thickness and enlarge said openings to their size declogging.
- Said sheath with its two bases is disposed in an envelope (18) provided with two openings one of which (8) is intended for the evacuation of said liquid and gaseous fractions and the other (11) for the filtra; say to the densified mud fraction.
- the method further comprises a motor (19) and a speed reducer (20) for driving said extruder screw (6);
- the minimum thickness of said openings is limited by the thickness of said spacers (14) when they are fully flattened as is the case of belleville washers; gold, for some sludge to be treated must have openings of a much thinner thickness than the thickness of a flattened washer.
- a clearance (22) is made in the elements (13) clearances in which the said spacer (14) is housed, and in this case, it is only the protruding part of the said spacer or washer which determines the thickness of the said elements. in days,
- said elements of the sheath can have all kinds of configurations, be made of all kinds of materials, have all kinds of configurations or thicknesses,
- said spacers may be belleville washers or all kinds of washers or parts forming springs,
- said spacers may be made of rubber or of all kinds of elastomers
- rigid and non-compressible spacers may be arranged together with compressible spacers thus limiting the thickness of said openings to the thickness of said non-compressible spacers;
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1502406A FR3043584B1 (fr) | 2015-11-16 | 2015-11-16 | Procede de decolmatage pour extrudeuse |
| PCT/IB2016/001621 WO2017085539A1 (fr) | 2015-11-16 | 2016-11-11 | Procede de decolmatage pour extrudeuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3377295A1 true EP3377295A1 (fr) | 2018-09-26 |
Family
ID=55361545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16852876.8A Withdrawn EP3377295A1 (fr) | 2015-11-16 | 2016-11-11 | Procede de decolmatage pour extrudeuse |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20200254368A1 (fr) |
| EP (1) | EP3377295A1 (fr) |
| AU (1) | AU2016357555A1 (fr) |
| BR (1) | BR112018009841A8 (fr) |
| CA (1) | CA3005003A1 (fr) |
| FR (1) | FR3043584B1 (fr) |
| WO (1) | WO2017085539A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230074061A1 (en) * | 2021-09-07 | 2023-03-09 | Imagine Tf, Llc | Isolation, concentration and detection of small particles |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2347078A1 (fr) * | 1976-04-07 | 1977-11-04 | Jacob Emile | Filtre en continu pour la preparation de pates ceramiques |
| US4384955A (en) * | 1980-11-25 | 1983-05-24 | Shinji Nakakura | Chips-deoiling machine |
| JPH0710440B2 (ja) * | 1992-02-21 | 1995-02-08 | アムコン株式会社 | 固液分離装置 |
-
2015
- 2015-11-16 FR FR1502406A patent/FR3043584B1/fr active Active
-
2016
- 2016-11-11 BR BR112018009841A patent/BR112018009841A8/pt not_active Application Discontinuation
- 2016-11-11 EP EP16852876.8A patent/EP3377295A1/fr not_active Withdrawn
- 2016-11-11 US US15/776,253 patent/US20200254368A1/en not_active Abandoned
- 2016-11-11 AU AU2016357555A patent/AU2016357555A1/en not_active Abandoned
- 2016-11-11 CA CA3005003A patent/CA3005003A1/fr not_active Abandoned
- 2016-11-11 WO PCT/IB2016/001621 patent/WO2017085539A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| BR112018009841A2 (pt) | 2018-11-13 |
| FR3043584A1 (fr) | 2017-05-19 |
| WO2017085539A9 (fr) | 2018-07-12 |
| US20200254368A1 (en) | 2020-08-13 |
| CA3005003A1 (fr) | 2017-05-26 |
| BR112018009841A8 (pt) | 2019-02-26 |
| WO2017085539A1 (fr) | 2017-05-26 |
| FR3043584B1 (fr) | 2017-11-17 |
| AU2016357555A1 (en) | 2018-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20180529 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| RIC1 | Information provided on ipc code assigned before grant |
Ipc: C02F 11/125 20190101ALI20190524BHEP Ipc: B01D 29/35 20060101ALI20190524BHEP Ipc: B01D 29/64 20060101ALI20190524BHEP Ipc: B30B 9/26 20060101AFI20190524BHEP |
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| INTG | Intention to grant announced |
Effective date: 20190617 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20191029 |