An outlet cover for a recessed plate-type filter, a filter plate, a filter plate assembly and a recessed plate-type filter
AssigneeMetso Outotec Finland Oy
InventorTeppo Suutari
Life of this patent
Estimating the term…
Abstract
An outlet cover with a first attachment pin fixed with respect to the outlet cover and having a radially extendable portion deformable upon by a radial force exerted from a hollow inside of the first attachment pin. The radially deformable portion prevents the first attachment pin from being withdrawn from an associated attachment hole, while allowing the first attachment pin to be compressed further into the associated attachment hole, thereby preventing a securing element from stripping any retaining surface, and thus increasing the longevity of the outlet cover. An associated filter plate, filter plate assembly and a filter are also concerned.
Claims28
1-27. (canceled)
An outlet cover for a recessed plate-type filter, such as a filter press or a tower press, comprising:
- a planar base having a generally flat side, defining an outer side of the outlet cover, and an opposite side, defining an attachment side of the outlet cover, to be attached against a diaphragm filter plate assembly;
- and
- one or more a first attachment pins protruding perpendicularly for a distance from the attachment side of the base,
- wherein at least a radially extendable portion is provided on the first attachment pin, so as to allow the extendable portion to radially deform away from the remaining shell by a radial force exerted on the extendable portion from the hollow inside of the first attachment pin, and
- wherein the one or more first attachment pins are fixed, preferably integral, parts of the base,
- wherein the outlet cover further comprises a flow deflector protruding perpendicularly for a distance from the attachment side of the base, the flow deflector comprising at least a conduit for deflecting a flow from a transverse chamber side perpendicularly towards the attachment side, and vice versa,
- wherein the first attachment pin is spaced apart from the flow deflector, and
- wherein the first attachment pin has a hollow shell, the inside of which opens at least towards the outer side, through the base.
A filter plate for a recessed type filter, such as a filter press or a tower press, comprising:
- a frame region surrounding and having an increased thickness with respect to the remaining portion of the filter plate;
- at least on a first surface of the diaphragm filter plate, a web region confined by, and recessed with respect to the frame region;
- an internal collector duct with one or more collector channel opening towards the web region so as to provide fluid communication between the collector duct and the web region;
- and
- one or more first attachment holes for receiving the one or more first attachment pin of the outlet cover, wherein the one or more first attachment holes have an inner diameter increasing towards a bottom of the hole.
Dependencies are inferred from the claim text.