DE205837C

DE205837C -

Info

Publication number: DE205837C
Application number: DENDAT205837D
Authority: DE

Description

&'\ae<Y\k\,vw\, bet,& '\ ae <Y \ k \, vw \, bet,

cfyw cPakvw ί'α/ηι Ia. cfyw cPakvw ί'α / ηι Ia .

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- Jig 205837 KLASSE 55d. GRUPPE- Jig 205837 CLASS 55d. GROUP

HALVOR GAARA und EILIF HEM in WIEN.HALVOR GAARA and EILIF HEM in VIENNA.

Stoffänger für die Papierfabrikation. Patentiert im Deutschen Reiche vom 2. November 1906 ab. Fabric hangers for paper production. Patented in the German Empire on November 2nd, 1906.

Bei der Wiedergewinnung des in den Abwässern der Papierfabriken, Holzschleifereien u. dgl. enthaltenen kurzfaserigen Stoffes mittels der bekannten Zylinderstoffänger tritt eine beträchtliche Menge des kurzfaserigen Stoffes durch die Maschen des Siebtuches hindurch und geht verloren. Bei Verwendung eines sehr feinen Siebtuches würde der Stoffverlust geringer sein; aber hierbei macht sich derIn the recovery of the wastewater from paper mills, wood grinders and the like. Contained short fibrous material by means of the known cylinder cloth occurs a Considerable amount of the short-fiber material through the mesh of the sieve cloth and gets lost. If a very fine sieve cloth is used, there would be a loss of material be less; but here the

ίο Übelstand geltend, daß ein gar zu feines iuch sich sehr rasch verstopft.ίο Evil claim that a too fine iuch clogs up very quickly.

Mit vorliegender Erfindung werden die vorerwähnten Nachteile behoben, indem zur Wiedergewinnung des kurzfaserigen Stoffes ein Stoffänger zur Anwendung kommt, in welchen relativ langfaseriger Stoff ununterbrochen in der Weise zugeführt wird, daß dieser langfaserige Stoff auf dem in dauernder Umdrehung befindlichen Zylinder sich ansetzen kann, bevor der kurzfaserige Stoff durch die so gebildete Filterschicht filtriert wird.With the present invention, the aforementioned disadvantages are eliminated by the Recovery of the short fiber material a cloth catcher is used in which relatively long-fiber material is fed continuously in such a way that this long-fiber Fabric can settle on the cylinder, which is in constant rotation, before the short-fiber fabric passes through the filter layer thus formed is filtered.

Die neue Anordnung besteht darin, daß an und etwas unter der Stelle, wo das Siebtuch des rotierenden Zylinders während seiner Drehung in das Wasser des Stoffkastens untertaucht, längs des ganzen Zylinders durch eine eingebaute Wand ein abgetrennter Raum geschaffen wird, in welchem relativ langfaseriger Stoff ununterbrochen zugeführt wird, so daß dieser Stoff in diesem Räume sich auf dem Siebtuch des Zylinders absetzt und an der äußeren Seite desselben ununterbrochen eine Filtrierungsschicht bildet, die den in der zu klärenden Flüssigkeit befindlichen relativ kurzfaserigen Stoff durch das Siebtuch, während dessen weiterer Bewegung durch den Stoffkasten am Hindurchtreten verhindert.The new arrangement is that at and something under the place where the sieve cloth the rotating cylinder is submerged in the water of the cloth box during its rotation, Along the entire cylinder, a built-in wall creates a separate space in which relatively long fibers Substance is fed continuously, so that this substance is in this room settles on the sieve cloth of the cylinder and continuously on the outer side of the same a filtration layer forms which is present in the liquid to be clarified relatively short-fibred material through the sieve cloth as it continues to move prevented by the fabric box from stepping through.

In der Zeichnung ist die Erfindung in zwei beispielsweisen Ausführungsformen eines Stofffängers im Querschnitt dargestellt.In the drawing, the invention is shown in two exemplary embodiments of a cloth catcher shown in cross section.

Der Siebzylinder 1 des Stoffängers dreht sich in der Richtung des Pfeiles. 2 ist der Stoff kasten, in dem der Zylinder rotiert, 3 die Zuflußrinne für das zu klärende Abwasser. Der relativ langfaserige Stoff wird aus einer Rinne' 4 in einen durch eine Längswand 5, die aber nicht so nahe an den Zylinder heranreichen darf, daß sie die an demselben liegende Stoffschicht abstreift, abgetrennten Raum geleitet, der sich an der Stelle befindet, wo das Siebtuch des Zylinders 1 in das Wasser im Stoffkasten untertaucht (Fig. 1). In diesem Räume setzt sich der langfaserige Stoff ununterbrochen während der Drehung des Zylinders 1 an seinem Umfange an, unbehindert von dem außerhalb dieses Raumes befindlichen kurzfaserigen Stoffe. Der letztere kommt daher trotz ununterbrochener Filtration nur mit dem bereits vollständig abgesetzten langfaserigen Stoffe in Berührung, wodurch ein Verlust an kurzfaserigem Stoffe vermieden und die Anordnung relativ weitmaschiger Siebtücher ermöglicht wird.The screen cylinder 1 of the cloth hanger rotates in the direction of the arrow. 2 is the Substance box in which the cylinder rotates, 3 the inflow channel for the wastewater to be treated. The relatively long-fiber material is from a channel '4 in a through a longitudinal wall 5, but which must not come so close to the cylinder that it is the one lying on it Stripping off the layer of fabric, diverted space, which is located in the place where the sieve cloth of the cylinder 1 is submerged in the water in the material box (Fig. 1). In this The long fiber fabric settles in spaces continuously during the rotation of the cylinder 1 in its scope, unimpeded by what is outside this room short fiber fabrics. The latter therefore only comes along despite uninterrupted filtration in contact with the long-fibrous material that has already completely settled, causing a loss Avoided short-fiber fabrics and the arrangement of relatively wide-meshed screen cloths is made possible.

Der langfaserige Stoff muß nicht aus einer über dem Stoffänger angebrachten Rinne 4 in den abgetrennten Raum hinabfallen, sondern kann auch, wenn gewünscht, z. B. mittels Röhren demselben zugeführt werden. Ebenso muß der langfaserige Stoff nicht an einer, sondern kann auch an mehreren Stellen längs des ganzen Zylinders aus der Rinne 4 in denThe long-fibrous material does not have to fall down into the separated space from a gutter 4 attached above the cloth catcher, but can also, if desired, e.g. B. be fed to the same by means of tubes. Likewise, the long fibrous material does not have to be in one, but can also in several places along the entire cylinder from the channel 4 in the

Claims

fall down separated space. The inflow channel 3 can also be attached on the opposite side, in which case the wall 2 can be guided so close to the cylinder that it replaces the wall 5 (Fig. 2). For fabric catchers intended for waste water from wood grinding shops, the long-fiber material can be obtained from the feed channel of the cardboard machine, or part of the coarse material removed by the grinding shop's sorters can also be used for this purpose. For a paper mill that is connected to a wood grinding shop or a cellulose factory, the long-fibred fabric for drags for the paper machine wastewater can be obtained from the grinding shop or the cellulose factory. If the cloth hanger goes for a long time without looking up and should stop for some reason, cloth would be lost because the long-fibred material. would flow over the cloth box. In order to avoid any loss of substance caused by this, in the end walls of the substance box 2, above the normal water level, an overflow 6 or a slot-shaped opening is provided through which the long-fibrous substance in the given case flow out of the box 2 and z . B. can be brought together by means of tubes with the draining thick flowing material from the fabric. The material deposited on the screen cloth of the cylinder 1 is removed in a known manner by means of a roller 7 with a scraper or by other known means. The material flowing from the roller 7 can possibly be drained from the material box 2 at 8 together with the water. 9 is a wall that can be arranged in various ways. The same has the purpose of preventing the thick-flowing fabric running off the roller 7 from sinking to the bottom of the fabric box. 45 Patent Α ν Proverbs:

1. Fabric hangers for paper production, in which a filter layer for the wastewater to be filtered is formed, characterized in that at the point in the fabric box (2), where the screen cloth of the rotating screen cylinder (1) is in the im The fabric box (2) is submerged in the water along the entire length of the cylinder a wall (5) a separate space is created in which the long-fiber Fabric z. B. from a container (4) is introduced continuously, so that on this point on the sieve cloth of the cylinder (1) continuously a filter layer can form before the sieve cloth with the wastewater to be clarified in the material box in Touch comes.

2. Cloth catcher according to claim i, characterized in that on the removal side of the cylinder (1) in the material box (2) a wall (9) is arranged, which allows mixing des through the roller. (7) removed and drained through the pipe (8) To prevent fabric with the water in the fabric box.

1 sheet of drawings.