DE171353C

DE171353C -

Info

Publication number: DE171353C
Application number: DENDAT171353D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

171353 -KLASSE i2d. GRUPPE 171353 - CLASS i2d. GROUP

verdichteten Filterschichten.compressed filter layers.

Patentiert im Deutschen Reiche vom 8. Mai 1904 ab.Patented in the German Empire on May 8, 1904.

Bei der Herstellung von Filterplatten aus breiigem Faserstoff, der unter einer besonderen Presse zwischen gelochten Blechen in den Rahmen hinein- und zu einer pappenartig verdichteten Faserschicht gepreßt wird, hängt die Dicke der Schicht davon ab, wie weit das von oben her niederzutreibende Blech oder sonstige Deckstück in den Rahmen hineingeschoben werden muß, um es mit denIn the production of filter plates from pulpy fiber, which is under a special Press between perforated sheets into the frame and into a cardboard-like manner compressed fiber layer is pressed, the thickness of the layer depends on how far the sheet to be driven down from above or other cover piece is pushed into the frame must be to it with the

ίο hierfür zur Verfügung stehenden Mitteln, wie Riegeln, Stiften oder dergl., festzuhalten. Hiermit steht im Zusammenhange, daß die für das Filtrieren so wichtige Dichte der Schicht in ziemlich weiten Grenzen verschieden ausfallen mußte, weil es nicht oder doch nur unvollkommen gelingt, immer genau dieselbe Menge von Faserstoff in den Füll-■ trichter der Presse einzubringen. Andererseits hat der bedienende Arbeiter hierbei, außer durch annähernde Bemessung der Faserstoffmenge, die er einfüllt, nicht die Möglichkeit, verschiedene Dichtigkeiten der Schicht nach Bedarf zu erzielen.ίο the means available for this, such as Bars, pins or the like. To hold on. This is related to the fact that the The density of the layer, which is so important for filtration, varies within fairly wide limits had to fail because it did not succeed or only succeeded imperfectly, always exactly the same Bring amount of pulp into the ■ hopper of the press. on the other hand the operating worker has, except by approximate measurement of the amount of fiber, which he fills, not the possibility of achieving different densities of the layer as required.

Diesem Ubelstand hilft der Gegenstand der.The subject of the helps this evil.

Erfindung ab, dessen Wesen darin besteht, daß zum Festhalten des beim Pressen niederzutreibenden gelochten Bleches oder sonstigen Deckstücks eine zwischen dem Rahmen und den gelochten Blechen oder Abdeckplatten wirkende Reibungssperrvorrichtung benutzt wird.Invention from, the essence of which is that to hold the to be driven down when pressing perforated sheet or other cover piece between the frame and the perforated sheets or cover plates acting friction lock device is used.

Zur Ausführung der Erfindung eignen sich sowohl solche Sperrvorrichtungen, die von selbst an beliebiger Stelle einfallen, um durch Reibungseingriff eine Kupplung zwischen den umschließenden Rahmen und dem eingepreßten Blech hervorzurufen, als auch solche Einrichtungen , die von Hand bedient werden müssen. In erster Linie empfiehlt es sich aber, solche Sperrvorrichtungen anzubringen, die während des Preßvorganges nicht im Wege sind und erst nachträglich angebracht werden.To carry out the invention, such locking devices are suitable that of even occur at any point to create a clutch between the frictional engagement cause surrounding frame and the pressed sheet metal, as well as such facilities that have to be operated by hand. First and foremost, it is recommended but to attach such locking devices that are not in the during the pressing process Paths are and are only added afterwards.

Eine Ausführungsform mit durch Reibung wirkenden losen Sperrklinken ist auf der Zeichnung beispielsweise dargestellt.An embodiment with frictionally acting loose pawls is on the Drawing shown for example.

Die Zeichnung stellt im Schnitt zwei Elemente einer Filterpresse mit zwei Filterschichten α zwischen gelochten Blechen b dar. Jeder Rahmen c der Filterplatte besitzt in seiner Mitte eine vorspringende Leiste d, gegen deren Absätze sich die inneren Bleche b anlegen, um bei der Herstellung der pappenartig verdichteten Faserschicht α innerhalb der hierzu bestimmten Presse als Widerlager zu dienen.The drawing shows in section two elements of a filter press with two filter layers α between perforated metal sheets b . Each frame c of the filter plate has in its center a protruding bar d, against the shoulders of which the inner metal sheets b apply in order to compress the cardboard-like Fiber layer α to serve as an abutment within the press intended for this purpose.

Während die inneren Bodenbleche einfach in ringförmige Vertiefungen der Leisten d gelegt werden, sitzen die äußeren, beim Verdichten der Faserschicht im Rahmen unter der Presse einzuschiebenden Bleche b an einem .Umfassungsreifen e, der zugleich zumWhile the inner bottom plates are simply placed in annular recesses in the strips d , the outer plates b, which are to be pushed in under the press when compressing the fiber layer in the frame, sit on a .Umeausreifen e, which is also used for

Claims

Engaging the locking pieces f is used. These locking pieces f slide with their cylindrical shafts in inclined bores in the frame c and, with their appropriately roof-shaped heads, lie in corresponding depressions in the surrounding rings holding the base plates. With this design and arrangement, the locking pieces hold the floor panels firmly in any position without them being able to be displaced by pressure exerted by the panels; this rather requires a pull exerted on them in the axial direction of their shaft. In the elements shown, the outer bottom plates for the filter layers on the right are drawn in the position which is to be considered the outermost, whereas the outer bottom plates of the filter layers on the left are in the most pushed-in position. These would be the limits within which the operator can choose the thickness of the filter layers, always being able to achieve the same tightness of the layer by introducing an appropriate amount of fiber into the hopper of the press. The effect of the actual filter press, which is composed of such elements, does not differ from the previously known ones with regard to the passage of the liquid; the individual elements have bores that form the inlet and outlet channels for the liquid when the filter press is assembled. The chambers formed between the filter layers of each element within the strips d are connected to the channels for the unfiltered liquid by radial bores, while the spaces between the adjacent elements, which receive the filtered liquid that has penetrated through the filter layers, through slots or Like. Are in communication with the channels for the filtered liquid. In the drawing, the path to be covered by the liquid is indicated by arrows. Godfather nt-A ν Proverbs:

1. Filter plate for filter presses with in a frame between in any Perforated metal sheets or cover plates that can be fixed at a distance from one another are compacted Filter sheets, characterized in that frictional locking devices between the frame and the perforated Sheets or cover plates allow a coupling to be made at any point.

2. Embodiment of the filter plate according to claim 1, characterized in that loosely insertable pawls (f) are used for the friction lock for coupling the frame and cover plates at any point, with cylindrical shafts in inclined guides of the frame and with roof-shaped heads in corresponding incisions grasp the plate mount rings (e).

1 sheet of drawings.