DE166654C - - Google Patents

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Publication number
DE166654C
DE166654C DENDAT166654D DE166654DA DE166654C DE 166654 C DE166654 C DE 166654C DE NDAT166654 D DENDAT166654 D DE NDAT166654D DE 166654D A DE166654D A DE 166654DA DE 166654 C DE166654 C DE 166654C
Authority
DE
Germany
Prior art keywords
drying
web
fabric
pulp
paper
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.)
Active
Application number
DENDAT166654D
Other languages
German (de)
Publication of DE166654C publication Critical patent/DE166654C/de
Active legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00Dryer section of machines for making continuous webs of paper

Landscapes

  • Paper (AREA)

Claims (1)

eu'Wff · iiqi diM> can«; (,iisqeu'Wff iiqi diM> can «; (, iisq KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Bei der rationellen Trocknung von Zellstoff-, Halbstoff-, Pappen-, Papier- u. dgl. Bahnen auf Trockenapparaten oder Trockenzylindern tritt erfahrungsgemäß nie eine ganz gleichmäßige Trocknung der Bahn ein, sondern die Stoffbahn weist in ihrer Breite verschiedene Trockenheitsgrade auf, was eine ungleichmäßige Beschaffenheit des fertigen Produktes bedingt. Es hat dies seinen GrundIn the efficient drying of cellulose, pulp, cardboard, paper and the like. Experience has shown that webs on dryers or drying cylinders never fully kick in uniform drying of the web, but the length of the fabric has different widths Degrees of dryness indicate an uneven texture of the finished product Depending on the product. There is a reason for this ίο darin, daß die sich zwischen den Trockenapparaten oder Trockenzylindern und der Stoffbahn entwickelnden Dämpfe gefangen gehalten und am Abzug verhindert sind.
Der Zweck der vorliegenden Erfindung ist nun, diesen Dämpfen einen Ausweg dadurch zu schaffen, daß die Zellstoff-, Halbstoff-, Pappen-, Papier- u. dgl. Bahn durch Walzen, die mit spitzen Stiftchen versehen sind, oder mittels feiner Wasser- oder Luftstrahlen, die unter starkem Druck durch die Stoffbahn getrieben werden, durchlöchert, d. h. porös gemacht wird; durch die entstandenen Poren, welche der Dicke der die Stoffbahn durchsetzenden Kanälchen gleichkommen, können die sich zwischen der Bahn und der Trockeneinrichtung bildenden Dämpfe entweichen. Nicht zum Zwecke der Erhöhung der Porosität an sich, denn diese kommt bei den vorliegenden Zellstoff- u. dgl. Bahnen überhaupt nicht in Betracht, sondern nur um eine vorteilhaftere Trocknung herbeizuführen, soll bei dem vorliegenden Verfahren die Perforierung vorgenommen werden. Dadurch wird eine vollkommen gleichmäßige Trocknung der' Stoffbahn über ihre ganze Breite bei erhöhter Leistungsfähigkeit und geringeren Betriebskosten der Trockner erzielt.
ίο that the vapors developing between the drying apparatus or drying cylinders and the fabric web are trapped and prevented from being drawn.
The purpose of the present invention is to create a way out of these vapors by the pulp, pulp, cardboard, paper and the like Jets of air that are driven through the fabric web under high pressure are perforated, ie made porous; the vapors formed between the web and the drying device can escape through the resulting pores, which are equal to the thickness of the small channels penetrating the material web. Not for the purpose of increasing the porosity per se, because this is not considered at all in the present cellulose and similar webs, but only in order to bring about a more advantageous drying, the perforation is to be carried out in the present method. This results in a completely uniform drying of the 'fabric web over its entire width with increased efficiency and lower operating costs of the dryer.
Vermittels der bekannten, durch die Zollvorschriften bedingten Perforierung der mitunter noch feuchten Stoffbahn kann eine vorteilhaftere Trocknung nicht erzielt werden, da die an den Lochstellen sich umlegenden Papierränder auf die Trocknung hindernd einwirken.By means of the well-known perforation of the sometimes A more advantageous drying process cannot be achieved when the fabric is still damp, because the edges of the paper that are folded over at the perforations prevent drying act. PateNT-AνSPRUcH :PATENT CLAIM: Verfahren zum Trocknen von Zellstoff-, Halbstoff-, Pappen-, Papier- u. dgl. Bahnen, dadurch gekennzeichnet, daß die Stoffbahn mit vielen kleinen öffnungen versehen und so porös gemacht wird, zum Zwecke, den sich zwischen der Bahn und dem Trockner entwickelnden Dämpfen einen Abzug zu schaffen.Process for drying cellulose, pulp, cardboard, paper and similar webs, characterized in that the fabric web is provided with many small openings and so made porous, for the purpose of being between the web and the dryer to create a vent for developing fumes.
DENDAT166654D Active DE166654C (en)

Publications (1)

Publication Number Publication Date
DE166654C true DE166654C (en)

Family

ID=432036

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT166654D Active DE166654C (en)

Country Status (1)

Country Link
DE (1) DE166654C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176467B (en) * 1958-01-24 1964-08-20 Schickedanz Ver Papierwerk Process for the treatment of fibrous webs
DE1224697B (en) * 1955-04-12 1974-01-17 DEVICE FOR THE PRODUCTION OF A FIBER WEB LIKE A FABRIC

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1224697B (en) * 1955-04-12 1974-01-17 DEVICE FOR THE PRODUCTION OF A FIBER WEB LIKE A FABRIC
DE1176467B (en) * 1958-01-24 1964-08-20 Schickedanz Ver Papierwerk Process for the treatment of fibrous webs

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