DE370422C - Device for achieving good mixing of the stock water and increased cross storage of fibers on fourdrinier paper machines with stock outlet nozzle arranged on the stock box - Google Patents

Device for achieving good mixing of the stock water and increased cross storage of fibers on fourdrinier paper machines with stock outlet nozzle arranged on the stock box

Info

Publication number
DE370422C
DE370422C DEW58233D DEW0058233D DE370422C DE 370422 C DE370422 C DE 370422C DE W58233 D DEW58233 D DE W58233D DE W0058233 D DEW0058233 D DE W0058233D DE 370422 C DE370422 C DE 370422C
Authority
DE
Germany
Prior art keywords
stock
fibers
impact
outlet nozzle
paper machines
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
DEW58233D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEW58233D priority Critical patent/DE370422C/en
Application granted granted Critical
Publication of DE370422C publication Critical patent/DE370422C/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/02Head boxes of Fourdrinier machines
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/02Head boxes of Fourdrinier machines
    • D21F1/028Details of the nozzle section

Landscapes

  • Paper (AREA)

Description

Vorrichtung zum Erzielen einer guten Durchmischung des Stoffwassers und vermehrter Querlagerung von Fasern an Langsiebpapiermaschinen mit am Stoffkasten angeordneter Stoffauslaßdüse. Es ist bekannt, daß an Langsiebpapiermaschinen der Einfluß der Registerschüttelung im Sinne vermehrter Querlagerung von Fasern (Verfilzung) mit wachsender Arbeitsgeschwindigkeit abnimmt und bei hohen Geschwindigkeiten überhaupt nicht mehr erkennbar ist. Diesem Mangel abzuhelfen durch Herbeiführung vermehrter Querlagerung von Fasern ist der Zweck der Erfindung. Sie besteht darin, daß im Stoffauslauf auf das Maschinensieb, und zwar in der bekannten Auslaufdüse selbst oder doch unmittelbar davor, über den ganzen Querschnitt gleichmäßig verteilt eine Anzahl Prall- oder Widerstandskörper angeordnet sind zu dem Zweck, im Stoffwasserstrom zwar örtlich begrenzte, aber sehr wirkungsvolle Wirbelbewegungen hervorzurufen. Die in diese Wirbel mitgerissenen Fasern lagern sich kreuz und quer und gelangen in diesem Zustand unmittelbar auf das Maschinensieb, d. h. die erstrebte gute Faserverfilzung ist herbeigeführt. Wichtig ist dabei, daß die Vorrichtung zur Durchwirbelung des Stoffwassers unmittelbar vor dem Austritt des Stoffwassers auf das Maschinensieb erfolgt, damit die Fasern im weiteren Laufe nicht wieder langgesträhnt werden und ferner, daß die Prallkörper in dein Teil des Stoffwasserauslaufes angeordnet sind, in dem die zu einer wirksamen Durchwirbelung erforderliche erhöhte Durchflußgeschwindigkeit vorhanden ist.Device for achieving good mixing of the stock water and increased cross storage of fibers on Fourdrinier paper machines with the stock box arranged stock outlet nozzle. It is known that on Fourdrinier paper machines Influence of register shaking in the sense of increased transverse storage of fibers (felting) decreases with increasing working speed and at high speeds at all is no longer recognizable. To remedy this deficiency by creating more Cross-storage of fibers is the purpose of the invention. It consists in that in the head outlet onto the machine sieve, in the known outlet nozzle itself or at least directly before that, evenly distributed over the entire cross-section, a number of impact or Resistance bodies are arranged for the purpose of being locally in the stock water flow produce limited but very effective vortex movements. Those in this Fibers entrained in vortices are criss-crossed and get into this state directly on the machine screen, d. H. the desired good fiber entanglement is brought about. It is important that the device for swirling the fabric water takes place immediately before the outlet of the stock water on the machine sieve, so the fibers are not stretched again in the further course and furthermore that the Impact bodies are arranged in your part of the stock water outlet, in which the to the increased flow rate required for effective turbulence is present is.

Die Prall- oder Widerstandskörper können sowohl auf dem Boden des Stoffwasserauslaufs wie auch darüber angeordnet sein oder in beiden Anordnungen gleichzeitig, ferner in einer Reihe oder mehreren Reihen hintereinander. Zur Erhöhung der Wirkung und tesseren Reinhaltung von Fasern können die Prall-und Widerstandskörper in hin und her gehende Bewegungen versetzt werden. Ihre Gestalt ist mannigfaltig und so zu wählen, daß genügend wirkungsvolle Wirbelbewegungen in wagerechter und senkrechter Richtung erzielt werden.The impact or resistance body can be placed on the bottom of the Stock water outlet as well as be arranged above or in both arrangements at the same time, furthermore in a row or several rows behind one another. To increase The impact and resistance bodies can influence the effect and keep the fibers clean be made to move back and forth. Their shape is varied and to be chosen in such a way that sufficient effective vortex movements are horizontal and perpendicular direction can be achieved.

Eine Ausführung der Vorrichtung ist in Verbindung mit einem bekannten Freistrahlstoffauflauf in Abb. i und 2 in je einem Querschnitt und Längsschnitt dargestellt: Über der Brustwalze a mit Maschinensieb b befindet sich der Freistrahlstoffauflauf c. Im Düsenteil des Stoffauflaufs, und zwar in einer Nut des Bodens eingelassen, sind ein oder mehrere Stäbe d angeordnet, die die Prallkörper e1 tragen. Die Stäbe d können mittels üblicher Einrichtungen iin zeitweilige oder ununterbrochene Hin- und Herbewegung versetzt werden, und zwar mit gleicher oder verschiedener Hubgröße und Hubfolge. Im Oberteil der Düse f können ebenfalls Prall-; körper e2 angeordnet sein, um die Durchwirbelung des Stoffwasserstromes so durchgreifend wie möglich zu erreichen.One embodiment of the device is in connection with a known one Free jet headbox in Fig. I and 2 in a cross-section and a longitudinal section Shown: The free jet headbox is located above the breast roll a with machine screen b c. In the nozzle part of the headbox, in a groove in the bottom, one or more rods d are arranged, which carry the impact body e1. The bars d can be temporarily or uninterrupted and reciprocating, with the same or different stroke size and stroke sequence. In the upper part of the nozzle f can also impingement; body e2 arranged be to the swirling of the water flow as thorough as possible to reach.

Neben zweckmäßiger Gestaltung kann bei unbeweglichen Prallkörpern durch Versetzung der verschiedenen Prallkörperreihen und ],ei beweglichen durch angepaßte Hubgröße und Hubfolge die Wirkung gesteigert werden.In addition to the appropriate design, immovable impact bodies can be used by relocating the various rows of impact bodies and], ei movable through adjusted stroke size and stroke sequence the effect can be increased.

Claims (3)

PATENTANSPRÜCHE: i. Vorrichtung zum Erzielen einer guten Durchmischung des Stoffwassers und vermehrter Querlagerung von Fasern an Langsiebpapiermaschinen mit am Stoffeinlaufkasten angeordneter Stoffauslaufdüse, dadurch gekennzeichnet, daß in oder unmittelbar vor der Stoffauslauf düse (f ) über der ganzen Auslaufbreite verteilt in den Durchflußquerschnitt hineinragende Prall- oder Widerstandskörper (e1, e,) zwecks Durchwirbelung des Stoffwasseri stromes angeordnet sind. PATENT CLAIMS: i. Device for achieving good mixing of the stock water and increased transverse storage of fibers on Fourdrinier paper machines with the head outlet nozzle arranged on the head inlet box, characterized in that impact or resistance bodies (e1 , e,) are arranged for the purpose of swirling the Stoffwasseri stream. 2. Vorrichtung nach Patentanspruch i, dadurch gekennzeichnet, daß eine Reihe oder mehrere Reihen von Prall- oder Widerstandskörpern hintereinander angeord-I neu sind. 2. Device according to claim i, characterized in that one row or more rows of impact or resistance bodies arranged one behind the other are new. 3. Vorrichtung nach Patentanspruch i, dadurch gekennzeichnet, daß die Prall-oder Widerstandskörper auf dem Bodenteil oder im Oberteil der Stoffauslaufdüse oder in beiden Lagen gleichzeitig angeordnet sind. q.. Vorrichtung nach Patentanspruch i, dadurch gekennzeichnet, daß die Prall-oder Widerstandskörper unbeweglich sind oder zeitweise oder dauernd Quer- oder Längsbewegung erhalten.3. Device according to claim i, characterized in that the impact or resistance body on the bottom part or in the top part of the head nozzle or in both positions at the same time are arranged. q .. Device according to claim i, characterized in that that the impact or resistance bodies are immobile or temporarily or permanently Receive transverse or longitudinal movement.
DEW58233D Device for achieving good mixing of the stock water and increased cross storage of fibers on fourdrinier paper machines with stock outlet nozzle arranged on the stock box Expired DE370422C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW58233D DE370422C (en) Device for achieving good mixing of the stock water and increased cross storage of fibers on fourdrinier paper machines with stock outlet nozzle arranged on the stock box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW58233D DE370422C (en) Device for achieving good mixing of the stock water and increased cross storage of fibers on fourdrinier paper machines with stock outlet nozzle arranged on the stock box

Publications (1)

Publication Number Publication Date
DE370422C true DE370422C (en) 1923-03-02

Family

ID=7605429

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW58233D Expired DE370422C (en) Device for achieving good mixing of the stock water and increased cross storage of fibers on fourdrinier paper machines with stock outlet nozzle arranged on the stock box

Country Status (1)

Country Link
DE (1) DE370422C (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714341A (en) * 1950-12-28 1955-08-02 Ernest A Poirier Method and apparatus for volume and consistency control for paper making stock
US2832268A (en) * 1954-07-29 1958-04-29 Outario Paper Company Ltd Method of improving flow of stock from the stock inlet of a paper machine
DE1114077B (en) * 1953-08-06 1961-09-21 Ontario Paper Company Ltd Headbox for Fourdrinier paper machines
DE1172111B (en) * 1957-04-08 1964-06-11 Motoo Saruhashi Round screen machine for the production of paper, cardboard, cardboard or the like.
US3220919A (en) * 1962-10-05 1965-11-30 Beloit Corp Shaped rod turbulence generators for use in a flowing stream of paper pulp
US3269892A (en) * 1966-08-30 Pulp plow apron for paper making machine
US3309264A (en) * 1964-01-17 1967-03-14 Beloit Corp Flow distributor for a papermaking machine
DE3134783A1 (en) * 1981-09-02 1983-03-17 Naučno-proizvodstvennoe ob"edinenie bumagodelatel'nogo mašinostroenija, Leningrad Paper-machine headbox
EP0149332A2 (en) * 1984-01-05 1985-07-24 Pilkington Brothers P.L.C. Apparatus for making fibre-reinforced cement sheet material
DE4433445C1 (en) * 1994-09-20 1996-03-28 Voith Gmbh J M Headbox of a paper machine
DE10323300A1 (en) * 2003-05-21 2004-12-16 Voith Paper Patent Gmbh molder

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269892A (en) * 1966-08-30 Pulp plow apron for paper making machine
US2714341A (en) * 1950-12-28 1955-08-02 Ernest A Poirier Method and apparatus for volume and consistency control for paper making stock
DE1114077B (en) * 1953-08-06 1961-09-21 Ontario Paper Company Ltd Headbox for Fourdrinier paper machines
US2832268A (en) * 1954-07-29 1958-04-29 Outario Paper Company Ltd Method of improving flow of stock from the stock inlet of a paper machine
DE1172111B (en) * 1957-04-08 1964-06-11 Motoo Saruhashi Round screen machine for the production of paper, cardboard, cardboard or the like.
US3220919A (en) * 1962-10-05 1965-11-30 Beloit Corp Shaped rod turbulence generators for use in a flowing stream of paper pulp
US3309264A (en) * 1964-01-17 1967-03-14 Beloit Corp Flow distributor for a papermaking machine
DE3134783A1 (en) * 1981-09-02 1983-03-17 Naučno-proizvodstvennoe ob"edinenie bumagodelatel'nogo mašinostroenija, Leningrad Paper-machine headbox
EP0149332A2 (en) * 1984-01-05 1985-07-24 Pilkington Brothers P.L.C. Apparatus for making fibre-reinforced cement sheet material
EP0149332A3 (en) * 1984-01-05 1987-01-07 Pilkington Brothers P.L.C. Apparatus for making fibre-reinforced cement sheet material
DE4433445C1 (en) * 1994-09-20 1996-03-28 Voith Gmbh J M Headbox of a paper machine
US5741401A (en) * 1994-09-20 1998-04-21 Voith Sulzer Papiermaschinen Gmbh Headbox of a paper machine
DE10323300A1 (en) * 2003-05-21 2004-12-16 Voith Paper Patent Gmbh molder

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