DE1052952B - Shockable filter candle made of plastic - Google Patents

Shockable filter candle made of plastic

Info

Publication number
DE1052952B
DE1052952B DED27173A DED0027173A DE1052952B DE 1052952 B DE1052952 B DE 1052952B DE D27173 A DED27173 A DE D27173A DE D0027173 A DED0027173 A DE D0027173A DE 1052952 B DE1052952 B DE 1052952B
Authority
DE
Germany
Prior art keywords
plastic
candle
shockable
filter candle
filter
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.)
Pending
Application number
DED27173A
Other languages
German (de)
Inventor
Guenter Stempel
Herbert Boge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Edelstahlwerke AG
Original Assignee
Deutsche Edelstahlwerke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deutsche Edelstahlwerke AG filed Critical Deutsche Edelstahlwerke AG
Priority to DED27173A priority Critical patent/DE1052952B/en
Publication of DE1052952B publication Critical patent/DE1052952B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/20Vibrating the filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters 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
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/70Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D29/72Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1638Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1653Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
    • B01D39/1661Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin sintered or bonded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/74Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
    • B29C70/76Moulding on edges or extremities of the preformed part
    • B29C70/766Moulding on edges or extremities of the preformed part on the end part of a tubular article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/18Filters characterised by the openings or pores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/14Filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)

Description

Erschütterbare Filterkerze aus Kunststoff Die Erfindung betrifft eine Filterkerze, welche aus einem nicht elastischen Kunststoff besteht und an ihrem Einspannende mit einem Bund versehen ist.Shakable filter candle made of plastic The invention relates to a Filter candle, which consists of a non-elastic plastic and attached to your Clamping end is provided with a collar.

Es ist an sich bekannt, Filterkerzen durch Sintern von Metallpulvern oder auch von Kunststoffpulvern herzustellen. Derartige Filterkerzen können an ihrem Einspannende mit einem Bund versehen sein. Es ist allgemein üblich, unter einem derartigen Bund jede beliebige Verstärkung oder Verdünnung des Einspannendes der Filterkerze zu verstehen. Aus diesem Grunde soll auch im folgenden von einem Bund nicht nur dann gesprochen werden, wenn das Einspannende tatsächlich »umbunden« wird, sondern auch dann, wenn lediglich eine flanschartige Erweiterung od. dgl. vorliegt. It is known per se to filter candles by sintering metal powders or from plastic powders. Such filter candles can on their Clamping ends should be provided with a collar. It is common practice under one such collar any reinforcement or thinning of the clamping end of the Understanding filter candle. For this reason, the following should also be referred to as a covenant not only spoken when what is constrained is actually "tied around", but also if only a flange-like extension or the like is present.

Die Verwendung derartiger Filterkerzen geschieht üblicherweise in der Art, daß die Offnung der Kerze mit einer Saugvorrichtung verbunden wird, welche das zu filtrierende Gut durch die poröse Kerzenwand hindurch absaugt. Die im Gut vorhandenen Schweheteilchen werden hierbei von der Filterkerze zurückgehalten und bilden allmählich eine fest auf der äußeren Oberfläche der Kerze haftende Schicht. Um diese Schicht zu entfernen, ist es in letzter Zeit üblich geworden, der Kerze eine mehr oder weniger kräftige Longitudinalschwingung zu erteilen. Hierdurch wird die an der Oberfläche haftende Schicht des Filterrückstandes abgeschüttelt, und es wird auf diese Weise dafür gesorgt, daß der Filtervorgang ungestört weiterlaufen kann. Such filter cartridges are usually used in of the kind that the opening of the candle is connected to a suction device, which sucks the material to be filtered through the porous candle wall. The ones in the estate Existing suspended particles are retained by the filter candle and gradually form a firmly adherent layer on the outer surface of the candle. In order to remove this layer, it has recently become the practice of the candle to give a more or less powerful longitudinal vibration. This will the layer of filter residue adhering to the surface is shaken off, and In this way it is ensured that the filtering process continues undisturbed can.

Beim Einschalten der Vibrationsvorrichtung läßt es sich jedoch nicht vermeiden, daß den Longitudinalschwingungen mehr oder weniger kurzzeitig transversale 5 chwingungen überlagert werden. Diese Transversalsebwingungen führen dazu, daß die Kerze schon nach verhältnismäßig kurzer Zeit in der Nähe der Einspannstelle reißt. However, it cannot be switched on when the vibration device is switched on avoid that the longitudinal vibrations more or less briefly transversal 5 vibrations are superimposed. These transverse vibrations lead to the fact that the candle in the vicinity of the clamping point after a relatively short time rips.

Um dies zu vermeiden, ist bereits vorgeschlagen worden, die gesamte Kerze nicht aus einem starren, sondern aus einem elastischen Kunststoff herzustellen. To avoid this, it has already been proposed to use the whole Make a candle not from a rigid, but from an elastic plastic.

Dieser Vorschlag hat sich jedoch nicht bewährt, weil eine derartige Kerze nicht nur die unerwünschter Transversalschwingungen, sondern auch die erwünschten Longitudinalschwingungen stark dämpft.However, this proposal has not been successful because such Candle not only the unwanted transverse vibrations, but also the desired ones Significantly dampens longitudinal vibrations.

Schon nach einer kurzen Zone ist die Schwingung derart abgeklungen, daß sie nicht mehr wirksam ist.After just a short zone, the oscillation has subsided in such a way that that it is no longer effective.

Einem nicht vorbekannten Vorschlag zufolge soll dem Übelstand dadurch begegnet werden, daß die Kerze mit einem verstärkten oder elastischen Bund versehen wird. Dies kann dadurch geschehen, daß lediglich die den Bund bildende Pulvermenge dicht gesintert wird. Als besonders zweckvoll hat es sich erwiesen, für den Bund ein andersgeartebes Kunststoffpulver zu venvenden als für die Kerze. Unter einem aridersaftigen KunEtstoffpularer ist in diesem Falle entweder ein Pulver anderer chemischer Zusammen setzung zu verstehen oder aber ein Pulver, welches zwar die gleiche chemische Zusammensetzung aufweist wie das den Kerzenkörpler bildende Pulver, welchem jedoch zur Änderung seiner mechanischen Eigenschaft ein Weichmacher zugesetzt wurde. According to a not previously known suggestion, the evil should thereby be encountered that the candle is provided with a reinforced or elastic waistband will. This can be done in that only the amount of powder forming the bundle is densely sintered. It has proven to be particularly useful for the federal government to use a different kind of plastic powder than for the candle. Under a arid juicy In this case, plastic is either a powder with a different chemical composition or a powder that has the same chemical composition has like the powder forming the candle body, but which one changes a plasticizer has been added to its mechanical properties.

Es wurde nun gefunden, daß eine stabile, bei kurzzeitigem Auftreten von Transversalschwingungen nicht brechende Kerze dann vorliegt, wenn deren Einspannende mit einem elastischen Kunststoff umspritzt ist. Die Verbindungsstelle zwischen dem den Kerzenkörper bildenden Kunststoff und dem zur Umspritzung dienenden Kunststoff ist hierbei besonders fest. Dies rührt daher, daß bei der erfindungsgemäßen Kerze eine große Haftzone zwischen den beiden Kunststoffarten besteht. Die Lage dieser Haftzone ist hierbei axial. It has now been found that a stable, with short-term occurrence Candle that does not break from transverse vibrations is present when its clamping end is encapsulated with an elastic plastic. The junction between the the plastic forming the candle body and the plastic used for overmolding is particularly firm here. This is due to the fact that the candle according to the invention there is a large adhesive zone between the two types of plastic. The location of this The sticking zone is axial.

Es ist zwar bereits bekannt, metallische oder andere Werkstoffe mit Kunststoff zu umspritzen, jedoch ist es neu, den Bund einer Filterkerze mit einer elastischen Kunststoffschicht zu versehen, um der Filterkerze eine erhöhte Festigkeit gegen Vibrations,schwingungen zu erteilen. Die Verfahren, die zur Herstellung der erfindungsgemäßen Umspritzung angewandt werden, sind naturgemäß die gleichen, die auch zur Umspritzung anderer Teile dienen. An Hand der schematischen Skizze sei die erfindungsgemäße Filterkerze kurz erläutert. It is already known to use metallic or other materials To encapsulate plastic, however, it is new to the collar of a filter candle with a elastic plastic layer to provide the filter candle with increased strength against vibration to give oscillations. The process used to manufacture the encapsulation according to the invention are used, are of course the same as those can also be used to encapsulate other parts. On the basis of the schematic sketch the filter candle according to the invention briefly explained.

Bei 1 ist die poröse, mit einem Bund 2 versehene Filterkerze angedeutet. Dieser Bund ist mit einem elastischen Kunststoff derart umspritzt, wie dies bei 3 angedeutet ist. Hierdurch entsteht das gegen Schwingungen außerordentlich stabile Einspannende 4; auf Grund der großen, meistenteils axial gerichteten Haftfläche 5 umfaßt die Umspritzung das Kerzenende besonders fest. At 1, the porous filter candle provided with a collar 2 is indicated. This collar is encapsulated with an elastic plastic in such a way as in 3 is indicated. This creates the against vibrations extraordinary stable clamping end 4; due to the large, mostly axially directed adhesive surface 5, the encapsulation encompasses the end of the candle particularly tightly.

Naturgemäß ist es auch möglich, andersgeformten Körpern durch eine derartige Umspritzung eine erhöhte Schwingungsfestigkeit zu verleihen. Of course, it is also possible to use a differently shaped body to give such encapsulation an increased vibration resistance.

Claims (1)

PATENTANSPRUCH: Erschütterbare Filterkerze aus Kunststoff, dadurch gekennzeichnet, daß die fertiggesinterte, gegebenenfalls mit einem verstärkten Bund versehene Kerze am Einspannende mit einem elastischen Kunststoff umspritzt ist. PATENT CLAIM: Shockable filter cartridge made of plastic, thereby characterized in that the fully sintered, optionally with a reinforced collar provided candle at the clamping end is encapsulated with an elastic plastic.
DED27173A 1958-01-10 1958-01-10 Shockable filter candle made of plastic Pending DE1052952B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED27173A DE1052952B (en) 1958-01-10 1958-01-10 Shockable filter candle made of plastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED27173A DE1052952B (en) 1958-01-10 1958-01-10 Shockable filter candle made of plastic

Publications (1)

Publication Number Publication Date
DE1052952B true DE1052952B (en) 1959-03-19

Family

ID=7039155

Family Applications (1)

Application Number Title Priority Date Filing Date
DED27173A Pending DE1052952B (en) 1958-01-10 1958-01-10 Shockable filter candle made of plastic

Country Status (1)

Country Link
DE (1) DE1052952B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222479B (en) * 1960-07-27 1966-08-11 Jacques Roland Alexandre Berli Filter candle attachment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222479B (en) * 1960-07-27 1966-08-11 Jacques Roland Alexandre Berli Filter candle attachment

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