DE102009009092A1 - Sieve plate for e.g. separation of crude oil from oil sand, has sieving-permeable support structure convexly curved towards sieve fabric, where structure is flat in design and sieve fabric is clamped on structure by clamping device - Google Patents
Sieve plate for e.g. separation of crude oil from oil sand, has sieving-permeable support structure convexly curved towards sieve fabric, where structure is flat in design and sieve fabric is clamped on structure by clamping device Download PDFInfo
- Publication number
- DE102009009092A1 DE102009009092A1 DE102009009092A DE102009009092A DE102009009092A1 DE 102009009092 A1 DE102009009092 A1 DE 102009009092A1 DE 102009009092 A DE102009009092 A DE 102009009092A DE 102009009092 A DE102009009092 A DE 102009009092A DE 102009009092 A1 DE102009009092 A1 DE 102009009092A1
- Authority
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- Germany
- Prior art keywords
- sieve
- support structure
- bottom according
- sieve bottom
- frame
- 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- Withdrawn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
- 239000004744 fabric Substances 0.000 title claims abstract description 20
- 238000000926 separation method Methods 0.000 title description 4
- 239000010779 crude oil Substances 0.000 title description 2
- 239000003027 oil sand Substances 0.000 title 1
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 238000012216 screening Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000006641 stabilisation Effects 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000006223 plastic coating Substances 0.000 claims 1
- 230000001133 acceleration Effects 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4618—Manufacturing of screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
Die Erfindung betrifft einen Siebboden zum Einbau in Siebmaschinen mit den im Oberbegriff des Patentanspruchs 1 angegebenen Merkmalen.The The invention relates to a sieve plate for installation in screening machines with the features specified in the preamble of claim 1.
Der grundsätzliche Aufbau eines Siebbodens für Siebmaschinen ist seit langem bekannt. So ist ein mit der Siebmaschine verbindbarer Rahmen vorgesehen, auf dem jeweils ein Siebgewebe befestigt ist. Um das Siebgewebe zu unterstützen, ist in dem Rahmen jeweils eine Stützstruktur unter dem Siebgewebe angeordnet, die für das Siebgut durchlässig sein muss. Aufgabe dieser Stützstruktur ist es, Schwingungen des Siebgewebes zu unterdrücken sowie eine unter dem Einfluss der Siebkräfte stattfindende Längung und damit Erschlaffung des Siebgewebes zu vermeiden. Im Wesentlichen dem gleichen Zweck dient die grundsätzlich bekannte konvexe Wölbung der Stützstruktur zum Siebgewebe hin.Of the Basic structure of a sieve tray for screening machines has been known for a long time. So is a connectable with the screening machine Provided frame on which a mesh is attached in each case. To support the mesh is in the frame respectively a support structure arranged under the screen mesh, the must be permeable to the screenings. task This support structure is to vibrations of the mesh to suppress as well as one under the influence of sieving forces elongation taking place and thus relaxation of the screen mesh to avoid. Essentially the same purpose serves the basically known convex curvature of the support structure to Siebgewebe out.
Im Zuge der Fortentwicklung von Siebmaschinen sind zwischenzeitlich extrem hohe Siebbeschleunigungen in der Größenordnung 10 g bis maximal 15 g erreichbar. Derartige Siebmaschinen werden u. A. für spezielle Trennaufgaben, wie beispielsweise die Separation von Rohölen aus Ölsanden oder die Abwasseraufbereitung eingesetzt. Darin werden extrem feinmaschige Siebgewebe mit Maschenweiten zwischen 10 und 100 μm verwendet.in the The development of screening machines is in the meantime extremely high screen accelerations of the order of magnitude 10 g to a maximum of 15 g achievable. Such screening machines are u. A. for special separation tasks, such as the Separation of crude oils from oil sands or wastewater treatment used. In it are extremely fine mesh screen meshes with mesh sizes between 10 and 100 microns used.
Bei den Siebböden nach dem Stand der Technik sind die Siebgewebe randseitig auf dem Rahmen befestigt. Insbesondere bei sehr engmaschigen Feinsieben und hohen Siebbeschleunigungen hat sich als großes Problem herausgestellt, dass bei einer solchen Befestigung des Siebgewebes letzte res sehr schnell zum Erschlaffen neigt. Damit kann das Siebgewebe innerhalb seiner Befestigungen in Eigenschwingungen unter Ausbildung stehender Wellen versetzt werden. Diese Schwingungen sind in der Regel der eigentlichen Siebschwingung entgegengesetzt, sodass die von der Maschine erzeugten Siebbeschleunigungen nicht vollständig vom Siebgewebe umgesetzt und damit die Siebleistung der Maschinen in nachteiliger Weise deutlich herabgesetzt werden.at The sieve trays according to the prior art are the sieve cloths attached to the frame on the edge. Especially with very close-meshed Fine sieves and high sieve accelerations have turned out to be big Problem highlighted that in such a fastening of the mesh fabric last res very fast to slackening. This allows the screen mesh within its fortifications in natural vibrations under training standing waves are offset. These vibrations are in the Rule of the actual Siebschwingung opposite, so that the machine accelerations are not complete implemented by the mesh and thus the screening performance of the machines be significantly reduced disadvantageously.
Ein weiteres Problem herkömmlicher Stützstrukturen besteht darin, dass es sich dabei in der Regel um relativ weit voneinander beabstandete, hochkant stehende Stege handelt, deren mit dem Siebgewebe in Kontakt kommende Seitenkanten mit einer Kunststoffleiste zur Schonung des Siebgewebes belegt sind. Die Wölbung dieser relativ groben Stützstruktur wird durch eine variierende Höhe dieser Stege erzielt, wobei das Siebgewebe an den Stegen jeweils etwas abgekantet wird. Damit sind dort insbesondere empfindliche Siebgewebe auch einem hohen Verschleiß unterworfen.One Another problem with conventional support structures is that these are usually relatively far apart spaced, upstanding webs is, whose with the mesh coming into contact side edges with a plastic strip for Protection of the screen mesh are occupied. The vaulting of this relatively coarse support structure is characterized by a varying Height of these webs achieved, with the screen fabric to the Stegen each is folded slightly. So there are in particular sensitive mesh also subjected to high wear.
Ausgehend von der geschilderten Problematik liegt der Erfindung die Aufgabe zugrunde, einen Siebboden zum Einbau in Siebmaschinen so zu verbessern, dass unter verschleißschonender Unterstützung des Siebgewebes die erwähnten Eigenschwingungen vermieden werden.outgoing From the described problem of the invention is the task based on improving a sieve bottom for installation in screening machines, that under wear-resistant support the mesh avoided the natural vibrations mentioned become.
Diese Aufgabe wird durch die im Kennzeichnungsteil des Anspruchs 1 angegebenen Merkmale gelöst. Demnach ist die Stützstruktur flächig ausgebildet, also insbesondere als gewölbtes Gitterblech oder Rostelement mit Strukturstreben und davon umgrenzten Öffnungen. Damit wird das Siebgewebe gleichmäßiger unterlegt, schärfere Abkantungen des Siebgewebes werden vermieden.These The object is specified by the characterizing part of claim 1 Characteristics solved. Accordingly, the support structure formed flat, ie in particular as a curved Grid plate or grate element with structure struts and openings bounded by it. Thus, the screen cloth is backed evenly, sharper bends of the mesh are avoided.
Von größerer Bedeutung für die Erfindung ist die ferner vorgesehene Spannvorrichtung zum Spannen des Siebgewebes über die gewölbte Stützstruktur. Dazu ist die Spannvorrichtung vorzugsweise mit dem dem eingespannten Seitenrand gegenüberliegenden Seitenrand des Siebgewebes gekoppelt, auf den eine vom festgelegten Seitenrand weg gerichtete Spannkraft ausgeübt wird. Auch eine zentrale Beaufschlagung des Siebgewebes mit der Spannvorrichtung ist als Alternative denkbar.From greater importance for the invention is the further provided clamping device for tensioning the screen fabric over the arched support structure. This is the tensioning device preferably with the clamped side edge opposite Coupled side edge of the mesh, on which one of the specified Side edge away directed clamping force is applied. Also a central loading of the screen fabric with the tensioning device is conceivable as an alternative.
Diese Spannvorrichtung sorgt dafür, dass auch bei einer Längung des Siebgewebes keine Erschlaffung eintritt, sondern das Gewebe dauerhaft unter Spannung auf der gewölbten Stützstruktur gehalten wird. Damit werden die beim Stand der Technik problematischen Eigenschwingungen des Siebs vermieden, die von der Siebmaschine erzeugte Siebbeschleunigung kann voll auf das Siebgewebe übertragen werden. Damit kann eine optimale Separation des Siebgutes erreicht werden.These Clamping device ensures that even with a lengthening of the mesh does not relax, but the tissue permanently under tension on the arched support structure is held. Thus, the problematic in the prior art Vibrations of the sieve avoided by the screening machine generated Siebbeschleunigung can fully transfer to the screen fabric become. This can achieve optimal separation of the material to be screened become.
In den abhängigen Ansprüchen sind bevorzugte Weiterbildungen des Siebbodens bzw. eine Siebmaschine mit mindestens einem solchen Siebboden im Siebkasten angegeben. Merkmale, Einzelheiten und Vorteile dieser bevorzugten Ausführungsformen sind der nachfolgenden Beschreibung entnehmbar, in der Ausführungsbeispiele der Erfindung anhand der beigefügten Zeichnung näher erläutert werden. Es zeigen:In The dependent claims are preferred developments of the sieve plate or a screening machine with at least one such Sieve bottom indicated in the sieve box. Features, Details and Benefits These preferred embodiments are the following Description removable, in the embodiments of the Invention with reference to the accompanying drawings closer be explained. Show it:
Aus
Auf
der Lagerbühne
Im
Siebkasten
Anhand
von
Auf
dem Rahmen
Wie
aus
Die
Spannvorrichtung
Die
freien Enden
Wie
in
Wie
aus
Wie
in
Der
in
Bei
der Stützstruktur
Die
Stützschienen
Eine
weitere Ausführungsform für den Siebboden ist
in
Bei
dem Siebboden
Die
in den
Der
Siebboden
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006041989 A1 [0022] - DE 102006041989 A1 [0022]
Claims (19)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009009092A DE102009009092A1 (en) | 2009-02-14 | 2009-02-14 | Sieve plate for e.g. separation of crude oil from oil sand, has sieving-permeable support structure convexly curved towards sieve fabric, where structure is flat in design and sieve fabric is clamped on structure by clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009009092A DE102009009092A1 (en) | 2009-02-14 | 2009-02-14 | Sieve plate for e.g. separation of crude oil from oil sand, has sieving-permeable support structure convexly curved towards sieve fabric, where structure is flat in design and sieve fabric is clamped on structure by clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102009009092A1 true DE102009009092A1 (en) | 2010-08-26 |
Family
ID=42356554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102009009092A Withdrawn DE102009009092A1 (en) | 2009-02-14 | 2009-02-14 | Sieve plate for e.g. separation of crude oil from oil sand, has sieving-permeable support structure convexly curved towards sieve fabric, where structure is flat in design and sieve fabric is clamped on structure by clamping device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102009009092A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624001A (en) * | 2013-12-23 | 2014-03-12 | 四川首富曼石油装备有限公司 | Mud fending device |
| WO2015072969A1 (en) * | 2013-11-12 | 2015-05-21 | National Oilwell Varco, L.P. | System and method for fabricating screen panel assemblies for vibratory separators |
| CN108970213A (en) * | 2018-08-10 | 2018-12-11 | 乳源东阳光氟树脂有限公司 | A kind of fluoropolymer lotion filter device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966466C (en) * | 1954-05-06 | 1957-08-08 | Brueckenbau Flender G M B H | Tenter frame for mesh sieve floors |
| DE10053845A1 (en) * | 1999-10-28 | 2001-07-12 | Powerscreen Int Distribution | Improvements for sieve boxes |
| DE102006041989A1 (en) | 2006-09-07 | 2008-03-27 | Paul Gmbh & Co. Kg | Sieving machine especially for difficult to separate mixtures, such as heavy oil-sand mixtures |
-
2009
- 2009-02-14 DE DE102009009092A patent/DE102009009092A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966466C (en) * | 1954-05-06 | 1957-08-08 | Brueckenbau Flender G M B H | Tenter frame for mesh sieve floors |
| DE10053845A1 (en) * | 1999-10-28 | 2001-07-12 | Powerscreen Int Distribution | Improvements for sieve boxes |
| DE102006041989A1 (en) | 2006-09-07 | 2008-03-27 | Paul Gmbh & Co. Kg | Sieving machine especially for difficult to separate mixtures, such as heavy oil-sand mixtures |
Non-Patent Citations (1)
| Title |
|---|
| DE B 0030909M AZ |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015072969A1 (en) * | 2013-11-12 | 2015-05-21 | National Oilwell Varco, L.P. | System and method for fabricating screen panel assemblies for vibratory separators |
| GB2535402A (en) * | 2013-11-12 | 2016-08-17 | Nat Oilwell Varco Lp | System and method for fabricating screen panel assemblies for vibratory separators |
| US10166574B2 (en) | 2013-11-12 | 2019-01-01 | National Oilwell Varco, L.P. | System and method for fabricating screen panel assemblies for vibratory separators |
| GB2535402B (en) * | 2013-11-12 | 2020-04-22 | Nat Oilwell Varco Lp | System and method for fabricating screen panel assemblies for vibratory separators |
| CN103624001A (en) * | 2013-12-23 | 2014-03-12 | 四川首富曼石油装备有限公司 | Mud fending device |
| CN108970213A (en) * | 2018-08-10 | 2018-12-11 | 乳源东阳光氟树脂有限公司 | A kind of fluoropolymer lotion filter device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120901 |