DE734537C - Method for attaching disc or cylindrical filters in the form of filters in the housings of respiratory protection filters - Google Patents

Method for attaching disc or cylindrical filters in the form of filters in the housings of respiratory protection filters

Info

Publication number
DE734537C
DE734537C DEA89048D DEA0089048D DE734537C DE 734537 C DE734537 C DE 734537C DE A89048 D DEA89048 D DE A89048D DE A0089048 D DEA0089048 D DE A0089048D DE 734537 C DE734537 C DE 734537C
Authority
DE
Germany
Prior art keywords
filters
housings
respiratory protection
cylindrical
attaching disc
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
Application number
DEA89048D
Other languages
German (de)
Inventor
Dr Walter Lemcke
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Priority to DEA89048D priority Critical patent/DE734537C/en
Application granted granted Critical
Publication of DE734537C publication Critical patent/DE734537C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00Filters for breathing-protection purposes

Description

Verfahren zur Befestigung von Scheiben- oder zylinderförmigen Schwebstoffiltern in Gehäusen von Atetnschutzfiltern Filter zum Zurückhalten von Schwebstoffen bestehen aus mehr oder weniger miteinander verfilzten Vasern oder Gemengen von Fasern mit pulvrigen Stoffen, zwischen denen nur kapillarartig ausgebildete Hohlräume bleiben, die dem zu reinigenden Gas den Durchtritt .ermöglichen. Solche Filter sind, besonders wenn sie in Form der sog. Einschichtfilter ausgebildet sind, lockere Gebilde ohne bedeutende mechanische Festigkeit. Um sie mit dem aufnehmenden Gehäuse dauerhaft zu verbinden, ruß man daher besondere Maßnahmen treffen. Man hat schon vorgeschlagen, die Innenwand des Gehäuses solcher Filter, welche die Form niedriger Zylinder haben und mit der Zylinderfläche mit dem Gehäuse verbunden -,v-erden müssen, vor dem Eindrücken mit einem in kaltem Zustande festen, in der Wärme jedoch klebenden Kitt, wie Marineleim, zu überziehen und durch Eindrücken des Filters in das Gehäuse und nachträgliches Erwärmen desselben den Filterkuchen mit der Gehäusewand zu verbinden. Abgesehen davon, daß das Einbringen des heißen Kittes in das Gehäuse besondere technische Maßnahmen erfordert; bedeutet das nachträgliche Erwärmen ein Gefahrenmoment, da die Klebung bei unsorgfältiger Ausführung des Erwärmens den verfolgten Zweck in Frage stellen kann.Method for attaching disc or cylindrical filters for suspended matter There are filters in the housings of breath protection filters to hold back suspended matter from more or less matted vasers or mixtures of fibers with powdery substances, between which only capillary-like cavities remain, which allow the gas to be cleaned to pass through. Such filters are special if they are designed in the form of so-called single-layer filters, loose structures without significant mechanical strength. To them with the receiving housing permanently to connect, so special measures must be taken. It has already been suggested the inner wall of the housing of such filters, which are in the shape of low cylinders and connected to the housing with the cylinder surface - must be grounded before being pressed in with a cement that is firm when cold, but sticks in the heat, such as marine glue, to cover and by pressing the filter into the housing and afterwards Heating the same to connect the filter cake to the housing wall. Apart from that from the fact that the introduction of the hot cement into the housing is particularly technical Action required; the subsequent heating means a moment of danger because If the heating is carried out carelessly, the bonding will serve the intended purpose Can ask a question.

Es wurde nun gefunden, daß man das Einkleben auch bei gewöhnlicher Temperatur ohne besondere Maßnahmen durchführen kann, wenn man als Klebemittel Naturkautschult in Form von Latex oder kolloidale K@inststoffklebstoffe verwendet. Sie ergeben eine dauerhafte Klebung, ohne die Filtereigenschaften des Schevebstoffilters zu schädigen. Außerdem kann das Filter bis zur Zerstörung des eigentlichen Schwebstoffes erwärmt werden, ohne daß durch das Erweichen des Klebstoffes, wie beim Marineleim, ein Loslösen des Filters eintritt. Man mußt:e bisher von Klebungen mit in echter Lösung befindlichen Klebemitteln absehen, da sie in die Kapillarräume des Filters :eindringen und eine Schädigung des Schwebstoffdurchlasses besonders an den Rändern des Filters hervorriefen. Aus diesem Grunde sind die bekannten Lösungen von Kunststoffklebstoffen, z. B. G-inylpolymersateii in organischen Lösungsmitteln oder auch von Gemischen solcher Lösungen mit Dispersionen von Kunststoffklebstoffen., die zum Verkleben verschiedenartiger Gegenstände, z. B. auch Papier und Stoff bzw. zum Befestigen von Textilien auf festen Unterlagen verwendet werden, zum Befestigen der empfindlichen Schwebstoffilter in den Gehäusen unbrauchbar. Als Klebstoffe der vorliemend beanspruchten Art kommen außer Naturkautschuk in Form von Latex auch kolloidale Lösungen von Polymerisaten der Acrylsäureester, Isobutylene, Vinylester, Styrole, Butadiene.It has now been found that gluing can also be done with ordinary Temperature can be carried out without special measures if natural rubber is used as an adhesive in Form of latex or colloidal plastic adhesives used. They make a permanent bond without damaging the filter properties of the Schevebstofffilter. In addition, the filter can be heated until the actual suspended matter is destroyed without loosening due to the softening of the adhesive, as is the case with marine glue of the filter occurs. You have to: e previously from gluing with in real solution Refrain from adhesives, as they penetrate into the capillary spaces of the filter: and a Damage to the suspended matter outlet, especially at the edges of the filter. For this reason, the known solutions of plastic adhesives, e.g. B. G-inylpolymersateii in organic solvents or mixtures of such solutions with dispersions of plastic adhesives. Which are used for gluing various objects, e.g. B. also paper and fabric or for attaching textiles to solid surfaces used to fix the sensitive particulate filters in the housings unusable. In addition to natural rubber, there are also natural rubber as adhesives of the type claimed in the form of latex also colloidal solutions of polymers of acrylic acid esters, Isobutylenes, vinyl esters, styrenes, butadienes.

Claims (1)

PATE1TA\ SPRt'Cii Verfahren zur Befestigung von scbeiben- oder zylinderförmigen Schwebstofffiltern in Gehäusen von Atemschutzf ltern, dadurch gekennzeichnet, daß als Klebemittel N aturkautschuk in Form von Latex oder kolloidale Kunststoffklebstoffe Verwendung finden.PATE1TA \ SPRt'Cii Method of attaching disk-shaped or cylindrical HEPA filters in housings of respiratory protection filters, characterized in that as an adhesive natural rubber in the form of latex or colloidal plastic adhesives Find use.
DEA89048D 1939-03-01 1939-03-01 Method for attaching disc or cylindrical filters in the form of filters in the housings of respiratory protection filters Expired DE734537C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA89048D DE734537C (en) 1939-03-01 1939-03-01 Method for attaching disc or cylindrical filters in the form of filters in the housings of respiratory protection filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA89048D DE734537C (en) 1939-03-01 1939-03-01 Method for attaching disc or cylindrical filters in the form of filters in the housings of respiratory protection filters

Publications (1)

Publication Number Publication Date
DE734537C true DE734537C (en) 1943-04-19

Family

ID=6950485

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA89048D Expired DE734537C (en) 1939-03-01 1939-03-01 Method for attaching disc or cylindrical filters in the form of filters in the housings of respiratory protection filters

Country Status (1)

Country Link
DE (1) DE734537C (en)

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