DE885652C - Heated roller for feeding raw cardboard webs with bituminous masses - Google Patents

Heated roller for feeding raw cardboard webs with bituminous masses

Info

Publication number
DE885652C
DE885652C DEV3943D DEV0003943D DE885652C DE 885652 C DE885652 C DE 885652C DE V3943 D DEV3943 D DE V3943D DE V0003943 D DEV0003943 D DE V0003943D DE 885652 C DE885652 C DE 885652C
Authority
DE
Germany
Prior art keywords
heated roller
feeding raw
raw cardboard
roll shell
cardboard webs
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
DEV3943D
Other languages
German (de)
Inventor
Otto Pfuetzner
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.)
VEDAG VEREINIGTE DACHPAPPEN FA
Original Assignee
VEDAG VEREINIGTE DACHPAPPEN FA
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 VEDAG VEREINIGTE DACHPAPPEN FA filed Critical VEDAG VEREINIGTE DACHPAPPEN FA
Priority to DEV3943D priority Critical patent/DE885652C/en
Application granted granted Critical
Publication of DE885652C publication Critical patent/DE885652C/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22Addition to the formed paper
    • D21H23/32Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/40Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper only one side of the paper being in contact with the material
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00Special paper or cardboard not otherwise provided for
    • D21H5/0005Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/0012Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material, e.g. by passing through liquids, gases or vapours
    • D21H5/0015Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material, e.g. by passing through liquids, gases or vapours only one side of the paper being in contact with the treating medium, e.g. paper carried by support

Landscapes

  • Paper (AREA)

Description

Bei der Tränkung von Rohpappenbahnen mit bituminösen Massen bedient man sich einer Vielzahl hintereinander angeordneter Umlenk- und Wendewalzen, um auf diesem Wege eine möglichst große Länge der Rohpappe mit der Imprägniermasse in Berührung zu bringen. Diese Umlenk-und Wendewalzen werden gewöhnlich nicht angetrieben und auch nicht geheizt, sondern durch die Reibung der Stoffbahn auf dem Walzenumfang in Drehung gesetzt. Bei den unvermeidlichen Stillständen des Betriebes wird nun infolge der Abkühlung der Masse ein Festkleben der Pappe auf dem Walzenmantel und ein Abreißen der Bahn verursacht, was dann ein mühevolles Durchziehen einer neuen Bahn unter großem Zeitverlust zur Folge hat. Zur Vermeidung dieser Miß'stände hat man zwar bereits mit Dampf direkt geheizte Hohlwalzen verwendet, die nach außen durch Stopfbuchsen abgedichtet waren. Die Stopfbuchsendichtung verursacht jedoch eine sehr erhebliche Reibung des sich drehenden Walzenkörpers auf seiner Achse, so daß es infolgedessen notwendig war, die Drehung des Walzenkörpers durch Zahnradantrieb od. dgl. zu bewerkstelligen. Abgesehen von dem hierfür benötigten Kraftbedarf ergaben sich hierauß insbesondere dadurch Unzuträglichkeiten, daß die Drehungsgeschwindigkeit der Walzen in genauer Übereinstimmung mit der Fördergeschwindigkeit der Pappenbahn eingestellt werden mußte, weil sonst wiederum mit der Gefahr des Abreißens der Pappenbahn zu rechnen war.Served in the impregnation of raw cardboard sheets with bituminous masses you have a large number of deflection and turning rollers arranged one behind the other to in this way the greatest possible length of the raw board with the impregnation compound to bring in touch. These deflecting and turning rollers are usually not driven and not heated either, but through the friction of the fabric on the roller circumference set in rotation. With the inevitable shutdowns of the operation, now as a result of the cooling of the mass, the cardboard sticks to the roll shell and a tearing of the web causes what then a laborious pulling through a new one Bahn with great loss of time. To avoid these abuses it is true that hollow rollers that are directly heated with steam are used, which face the outside were sealed by stuffing boxes. However, the gland packing caused a very significant friction of the rotating roller body on its axis, so that it was consequently necessary to drive the rotation of the roller body by gear drive or the like. To accomplish. Apart from the force required for this, resulted this is particularly due to the fact that the speed of rotation of the rollers in precise correspondence with the conveying speed of the cardboard web had to be stopped because otherwise there was a risk of the cardboard web tearing off was to be expected.

_.s_ur:d@e_n_un_ g°funden,,_,daß diese Schwierigkeiten in einfacher Weise dadurch vermieden werden, daß man zur Tränkung von Rohpappenhahnen mit bituminösen Massen beheizte Walzen verwendet, bei denen der äußere Walzenmantel mittels Kugel- oder Rollenlager od. dgl. leicht drehbar auf einem innenbeheizten feststehenden Heizrohr montiert ist. Die Innenbeheizung des feststehenden Heizrohrs kann zweckmäßig mit Dampf, aber auch mittels elektrischer Heizwiderstände u. dgl. erfolgen. Das Heizrohr überträgt durch Wärmestrahlung seine Wärme auf den Walzenmantel._.s_ur: d @ e_n_un_ g ° found ,, _ that these difficulties in easier Way to be avoided by the fact that one for impregnation of raw cardboard taps with bituminous Mass heated rollers are used, in which the outer roller shell by means of spherical or roller bearings od. The like. Easily rotatable on an internally heated stationary Heating pipe is mounted. The internal heating of the fixed heating pipe can be useful with steam, but also by means of electrical heating resistors and the like. That The heating tube transfers its heat to the roll shell through thermal radiation.

Durch die erfindungsgemäße Vorrichtung wird die sonst notwendige Stopfbuchsenabdichtung des Walzenkörpers überflüssig, da das angewendete . Heizmittel sich im Innern des feststehenden Heizrohrs befindet und nicht in den Zwischenraum zwischen Walzenmantel und Heizrohr gelangen kann. Andererseits gestattet es die Lagerung des Walzenmantels mittels Kugel- oder Rollenlager od. dgl. auf dem Heizrohr die Reibung bei Drehung des Walzenmantels so herabzusetzen, daß man sich einen besonderen maschinellen Antrieb des Walzenmantels, z. B. durch Zahnräder, völlig ersparen kann. Der Walzenmantel wird vielmehr ohne weiteres durch die auf ihm weitergleitende Pappenbahn mitgenommen und in eine genau der Fördergeschwindigkeit der Bahn entsprechende Drehung versetzt.The otherwise necessary stuffing box seal is achieved by the device according to the invention of the roller body superfluous because the applied. Heating means are inside the Fixed heating tube and not in the space between the roll shell and the heating pipe. On the other hand, it allows the roll shell to be stored by means of ball or roller bearings or the like on the heating pipe, the friction during rotation reduce the roll shell so that you get a special machine drive of the roll shell, e.g. B. by gears, can be completely saved. The roll shell Rather, it is easily carried along by the cardboard web sliding on it and set in a rotation that corresponds exactly to the conveying speed of the web.

In der Zeichnung bedeutet r das feststehende Heizrohr, auf welchem mittels Kugellagern 2 der drehbare Walzenmantel 3 montiert ist. 4 ist die auf dem Walzenmantel transportierte Pappenbahn. Wie die Zeichnung zeigt, kann zweckmäßig die lichte Weite des Heizrohrs im Walzeninnern derjenigen des Walzenmantels möglichst weitgehend angepaßt werden, um eine möglichst gute Wärmeübertragung sicherzustellen und gleichzeitigRaum für gegebenenfalls bei Dampfheizung anzubringende Leitkanäle oder Leitflächen für den Dampf oder z. B. bei elektrischer Widerstandsheizung Raum für die Widerstandskörper zu schaffen. - -Durch die erfindungsgemäße Vorrichtung wird in mehrfacher Hinsicht eine wesentliche Verbesserung des Betriebes erreicht. Man erspart nicht nur den für die- bisher üblichen Stopfbuchsenwalzen notwendigen Kraftbedarf zum Antrieb, sondern err@eich£ äuBerdem eine weif gröT3#erz'S-förün,gsfreiheit des Tränkvorganges der Rohpappe, weil ein Abreißen oder Festkleben der Pappe auf- dem Walzenmantel hier nicht mehr zu befürchten ist.In the drawing, r means the fixed heating pipe on which The rotatable roll shell 3 is mounted by means of ball bearings 2. 4 is the one on the Roll shell transported cardboard web. As the drawing shows, can be useful the clear width of the heating tube inside the roll that of the roll shell as possible largely adapted to ensure the best possible heat transfer and, at the same time, space for ducts that may be installed in the case of steam heating or guide surfaces for the steam or z. B. for electrical resistance heating room to create for the resistance body. - By the device according to the invention a significant improvement in operations is achieved in several respects. You not only save the stuffing box rollers necessary for the previously common stuffing box rollers Power required to drive, but also achieve a white, greatest3 # ore-fore, freedom of movement the impregnation process of the raw cardboard, because the cardboard tears or sticks the roll shell is no longer to be feared here.

Claims (1)

PATENTANS.PRUCA: Beheiztewalze zur Tränkung von Rohpappenbahnen mit bituminösen Massen, dadurch gekennzeichnet, daß der äußere Walzenmantel (3) mittels Kugel- oder Rollenlagern (2) od. dgl. leicht drehbar auf einem innenbeheizten feststehenden Heizrohr (z) montiert ist.PATENTANS.PRUCA: heated roller for impregnating raw cardboard sheets with bituminous masses, characterized in that the outer roll shell (3) by means of Ball or roller bearings (2) or the like. Easily rotatable on an internally heated stationary one Heating pipe (z) is mounted.
DEV3943D 1944-01-27 1944-01-27 Heated roller for feeding raw cardboard webs with bituminous masses Expired DE885652C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV3943D DE885652C (en) 1944-01-27 1944-01-27 Heated roller for feeding raw cardboard webs with bituminous masses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV3943D DE885652C (en) 1944-01-27 1944-01-27 Heated roller for feeding raw cardboard webs with bituminous masses

Publications (1)

Publication Number Publication Date
DE885652C true DE885652C (en) 1953-08-06

Family

ID=7570695

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV3943D Expired DE885652C (en) 1944-01-27 1944-01-27 Heated roller for feeding raw cardboard webs with bituminous masses

Country Status (1)

Country Link
DE (1) DE885652C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977085C (en) * 1954-11-10 1965-01-28 United States Steel Corp Pull-through furnace for steel belts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977085C (en) * 1954-11-10 1965-01-28 United States Steel Corp Pull-through furnace for steel belts

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