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DE131255C - - Google Patents

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Publication number
DE131255C
DE131255C DENDAT131255D DE131255DA DE131255C DE 131255 C DE131255 C DE 131255C DE NDAT131255 D DENDAT131255 D DE NDAT131255D DE 131255D A DE131255D A DE 131255DA DE 131255 C DE131255 C DE 131255C
Authority
DE
Germany
Prior art keywords
walls
liquid
bleaching
joints
rough
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
DENDAT131255D
Other languages
German (de)
Publication of DE131255C publication Critical patent/DE131255C/de
Active legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10Bleaching ; Apparatus therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

M 131255 KLASSE 55 c. M 131 255 CLASS 55 c.

Zusatz zum Patente 127152 vom 8. Mai 1900.Addendum to patent 127152 of May 8, 1900.

Patentirt im Deutschen Reiche vom 31. Oktober 1900 ab. Längste Dauer: 7. Mai 1915.Patented in the German Empire on October 31, 1900. Longest duration: May 7, 1915.

Nach dem durch Patent 127152 geschützten Bleichverfahren soll eine günstige Bleichwirkung durch gleichmäfsige Senkung der Bleichflüssigkeit durch die schwimmenden Massen des zu bleichenden Papierstoffes oder dergl. erfolgen.According to that protected by patent 127152 Bleaching process is said to have a beneficial bleaching effect by uniformly lowering the bleaching liquid by the floating masses of the paper stock to be bleached or the like.

Für die gleichmäfsige Einwirkung auf sä'mmtliche Stofftheile ist es nothwendig, dafs diese Flüssigkeit, welche an der Oberfläche möglichst gleichmäfsig vertheilt wird, auch in dieser gleichmäfsigen Schichtung, also mit derselben Geschwindigkeit aller einzelnen Theilchen nach unten sinkt. Zu diesem Zweck mufs auch die Abführung der Flüssigkeit am Boden möglichst gleichmä'fsig über die ganze Querschnittsfläche erfolgen.For the uniform action on all material parts it is necessary that these Liquid, which is distributed as evenly as possible on the surface, also in this uniform stratification, that is, with the same speed of all individual particles sinks below. For this purpose, the liquid must also be drained off at the bottom if possible take place uniformly over the entire cross-sectional area.

Dieses genügt aber allein noch nicht. Es besteht vielmehr die Gefahr, dafs die Flüssigkeit an den Wänden^ wo sie sich nicht zwischen den einzelnen Stofftheilchen, sondern zwischen dem Stoff und der Wandfläche durchzudrücken hat, voreilt. Dieses Voreilen mufs durch entsprechende Gestaltung der Wände verhindert werden, welche der Flüssigkeit hier gerade solchen Widerstand entgegensetzen, wie mitten im Stoff vorhanden ist. Dieses wird durch Anwendung rauher Wände oder von Wänden mit entsprechenden Fugen erreicht.But this alone is not enough. Rather, there is a danger that the liquid on the walls, where they are not between the individual particles of fabric, but between has to push through the fabric and the wall surface. This advance must be done by appropriate Design of the walls are prevented, which oppose the liquid here just such resistance, as in the middle is present in the fabric. This is done by using rough walls or walls achieved with appropriate joints.

Die Wände werden deshalb zweckmäfsig aus rauhem Ziegelwerk hergestellt und die Fugen zwischen den einzelnen Steinschichten concav gehalten, um so eine etwaige Voreilung im Abwärtsströmen jedesmal wieder zu unterbrechen. Eventuell können auch besondere Formziegel verwendet werden, die eine gezackte oder gewellte Querschnittsform der Wandung ergeben bezw. rauher Cementwandputz mit horizontalen Fugen.The walls are therefore expediently made of rough brickwork and the Joints between the individual stone layers kept concave, so as to avoid any overrun to interrupt each time in the downward flow. May also be special Shaped bricks are used that have a jagged or corrugated cross-sectional shape of the wall result respectively rough cement wall plaster with horizontal joints.

Claims (1)

Patent-An spruch:Patent claim: Eine Ausführungsform des Verfahrens nach Patent 127152, dadurch gekennzeichnet, dafs das Voreilen der Bleich- und Waschflüssigkeit an den Wänden des Bleichgefäfses dadurch verhindert wird, dafs rauhe Wände oder solche mit Fugen zur Verwendung kommen.An embodiment of the method according to patent 127,152, characterized in that the lead of the bleaching and washing liquid on the walls of the bleaching vessel thereby rough walls or those with joints are prevented from being used.
DENDAT131255D Active DE131255C (en)

Publications (1)

Publication Number Publication Date
DE131255C true DE131255C (en)

Family

ID=399596

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT131255D Active DE131255C (en)

Country Status (1)

Country Link
DE (1) DE131255C (en)

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